In the process of organic fertilizer production, how to granulate the fermented raw materials is the key factor to determine whether the commercial fertilizer can enter the market. The following granulation methods are generally used.
Fertilizer production line
(1) Agglomerate granulation. Under the action of rotation, vibration and stirring, the wet powder in motion is agglomerated. Or the fluidized bed is used to coagulate dry powder and particles into suitable particles by supplying spray solution (adhesive).
(2) Extrusion granulation. It is a method of making dry powder or wet powder containing adhesive into cylindrical, spherical or sheet by mechanical processing such as extrusion, roll extrusion or pressing.
(3) Crushing and granulation. It is to crush block materials into particles of appropriate size.
(4) Melt granulation. It is a method of granulation by cooling and hardening molten liquid.
(5) spray granulation. It is a method of directly granulating solid after concentration in liquid.
(6) Liquid phase crystallization granulation. It is a method that materials crystallize in liquid phase and agglomerate into spherical particles through liquid bridging agent and stirring.
This technology is widely used in pharmaceutical industry. Because the particle shape is spherical, it is also called spherical crystallization granulation method, which is abbreviated as spherulite granulation method.
Spherulite particles are pure material particles with good fluidity, filling and compression formability. In recent years, the technology has been successfully developed. That is, polymer copolymer precipitation is added in the spherulite crystallization process to prepare sustained-release, rapid release, enteric coated, gastric coated pellets, floating hollow pellets, biodegradable microcapsules, etc. Preparation of sustained release pellets.
Particle drying is an essential step in the production line of nitrogen, phosphorus and potassium fertilizer. The state requires that the moisture content of compound fertilizer must be less than 30% to meet the national standard. Then in the process of compound fertilizer production, the water content of organic fertilizer after granulation reaches about 50%.
Sometimes even higher, the moisture content of dry particles has become an important link in fertilizer production.
In the drying process of fertilizer manufacturing process, it is very important to pay attention to the drying method. The fertilizer produced by the compound fertilizer equipment is full dry fertilizer. So how does compound fertilizer equipment produce dry fertilizer? What are the methods?
1. Mechanical dewatering method: mechanical dewatering method is to pressurize materials and then extrude some water. Common methods include pressing, sedimentation, filtration, centrifugation, etc. Mechanical dehydration is only used for the initial dehydration of raw materials. This method is not suitable for the production of particles.
Therefore, the moisture content of materials after mechanical dehydration is still high, generally 40-60%. However, mechanical dehydration is the most economical method, which is most suitable for the dehydration of poultry and animal feces.
2. Heating and drying method of compound fertilizer dryer: This is what we often call drum dryer drying method. It uses heat energy to enter the dryer barrel, and the temperature in the barrel reaches about 150 degrees. According to different materials, the temperature can be adjusted to evaporate the water in the materials.
A certain amount of heat energy is required to remove the water in the materials. This method usually uses air to dry the material. The air is preheated and sent to the dryer to transfer heat to the material, so that the water in the material evaporates to form water vapor, which is brought out of the dryer with the air.
The material can be heated and dried to remove the combined water in the material, so as to achieve the water content required by the product or raw material. This method can be applied to a variety of industries, and it is also one of the simplest methods to meet the requirements.
3. Chemical dehumidification method: this method uses hygroscopic agent to remove a small amount of moisture in gas, liquid and solid materials. Due to the limited dehumidification capacity of hygroscopic agent, it is now only used to remove trace moisture in materials. Therefore, this method is rarely used in production.
In addition to the disc granulator, the fertilizer granulator is mainly suitable for the production of large-scale compound fertilizer. The investment of relevant equipment is large, the construction time is long, the energy consumption is high, the production cost is high, and there are certain environmental pollution problems.
The extrusion granulation plant for producing multi-element potassium magnesium sulfate fertilizer has the advantages of small floor area, short process flow, convenient equipment operation, less construction investment and short construction period. Therefore, the compound fertilizer production line technology project is a short, flat and fast construction project, which has a certain popularization and application value in small compound fertilizer equipment production enterprises.
Extrusion granulation of compound fertilizer production line is to extrude materials by external force. The granulation process does not need steam, which can save boiler construction investment and coal production cost. The compound fertilizer production line does not introduce water and has no drying process in the whole production process, which eliminates the large and expensive dryer in the traditional compound fertilizer production line equipment, and can be dried with fuel and drying equipment.
Therefore, the process of this compound fertilizer production line meets the needs of today’s energy-saving society.
3. In the traditional nitrogen, phosphorus and potassium fertilizer production line, hot blast stove and preheated air are used to dry the materials in the production process. Burning coal in hot blast stove will produce a certain amount of sulfur dioxide gas and pollute the atmosphere.
4. The fertilizer is less affected by the external environment (such as temperature and humidity) in the production process, with great operation flexibility and flexible process formula.
5. The compound fertilizer production line has high pelletizing rate, low moisture content, high particle strength, less system return and less caking in the production process, which has good economic benefits.
Any material applied to the soil or sprayed on the ground of crops, which can directly or indirectly supply nutrients to crops, increase crop yield, improve product quality or soil properties, and make the soil fertile, is called fertilizer. Fertilizers that directly provide essential nutrients for crops are called direct fertilizers, such as nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, trace element fertilizer and compound fertilizer.
Other fertilizers, mainly used to improve the physical, chemical and biological properties of the soil, so as to improve the growth conditions of crops, are called indirect fertilizers, such as lime, gypsum and bacterial fertilizers. How to make your own fertilizer? Go to https://www.fertilizer-plants.com/
According to chemical composition, fertilizers can be divided into organic fertilizer and chemical fertilizer. Today I will introduce the basic information of organic fertilizer and chemical fertilizer.
Organic fertilizer is a kind of natural fertilizer which is used in rural areas, such as animal and plant residues or human and animal manure, and applied in situ or planted directly. It is also called farmyard manure.
What is chemical fertilizer? How to make chemical fertilizer by your own? Go to https://www.fertilizer-plants.com/compound-fertilizer-production-line/ for more.
In a narrow sense, chemical fertilizer refers to chemical fertilizer; In a broad sense, chemical fertilizer refers to all inorganic fertilizers and slow effect fertilizers produced in industry. Therefore, some people only call nitrogen fertilizer, but it is not comprehensive to call chemical fertilizer. Fertilizer is the general term of nitrogen, phosphorus, potassium and compound fertilizer.
In chemical fertilizer, the fertilizer containing two or more main nutrients such as nitrogen, phosphorus and potassium is called compound fertilizer. Therefore, NPK compound fertilizer is a kind of chemical fertilizer.
Our factory mainly produces organic fertilizer production and NPK fertilizer production equipment, such as dumper, mixer, crusher, granulator, etc.
Organic fertilizer is a kind of organic fertilizer made from poultry manure, combined with fermentation bacteria, straw and other auxiliary materials, using traditional fermentation methods or organic fertilizer production equipment.
For commercial organic fertilizers on the market, two more popular forms of finished organic fertilizers are powdered and granular. What is the processing technology of powdery organic fertilizer and granular organic fertilizer? Which is better?
1. Before transplanting, plant according to the standard, the aperture (top) is 13-15cm, 10-12cm, mix the fertilizer used in the whole growth period, evenly apply it to the bottom of the fertilizing hole, dig the pool for 8 times, fertilize – 10cm in front of the hole, transplant cabbage seedlings, and cover the soil with fertilizer by the way.
The distance between root planting and hole fertilization is always 8-10cm, which is easy to absorb and will not cause seedling burning.
2. After transplanting or 15-20 days after transplanting, a fertilizing hole with a depth of 13-15cm and a diameter of 10-12cm was dug in the center of every 4 plants. During the whole growth period, all the chemical fertilizers were mixed evenly and then applied to the bottom of each fertilizing hole, and the soil was immediately covered.
Cabbage in the preparation, the whole growth period of fertilizer should be fully mixed, evenly spread on the cultivated land, through repeated rake, fertilizer soil fully mixed, to achieve the whole surface soil fertilizer mixed, the preparation and transplanting.
Now, let me introduce the drum granulator.
Working principle of drum granulator:
The working principle of this series of drum granulator is: the main motor drives the belt and pulley, which are driven to the transmission shaft through the reducer, and work together through the open shaft installed on the gear and the large gear teeth fixed on the body.
The material is fed from the feeding end through the cylinder. Through the function of the internal structure of the cylinder, the particles are made and finally come out through the air outlet. With the continuous entry of materials, the continuous rotation of granulator, in order to achieve mass production.
This machine is the main machine of NPK fertilizer production line.
Advantages of NPK fertilizer production line:
1. Raw materials are widely used
2. The spheroidization rate is high and the survival rate of biological bacteria is high.
3. The process is short
In the process of making a series of special fertilizers, inorganic nutrients and minerals should be added according to different soil conditions and different crops. These minerals are concentrated in organic matter and trace elements, so that the fertilizer contains various nutrients needed for plant growth, such as nitrogen, Phosphorus, potassium, sodium, manganese, zinc, copper, etc.
According to the formula, nitrogen, phosphorus, potassium and fermentation material are mixed by computer and transferred to granulator for granulation. We mix organic and inorganic materials according to different series of products, and mix them well in blender. Assume that the proportion of organic materials is 12%, about 12 tons.
The production process should not be exposed to high temperature and other characteristics due to the poor formation conditions of bio fertilizer mainly composed of organic matter and cellulose and the viable bacterial population with the function of making fertilizer.
Disc granulation and drum granulation are not suitable for building materials, because these two technologies require fine grinding of raw materials, high moisture content of granulation, and generally the moisture content is about 30%, so the load is relatively large. There are different types of fertilizer granulators for your fertilizer granulation process.
For drying, the loss of effective bacteria is great, and the pelleting rate is low (about 60% – 70%), the dust is heavy, and the operating environment in the production process is poor.
Therefore, through the extrusion environment, the requirements of raw material crushing are low, the molding rate is high (more than 95%), the water content of formed particles is low, the drying load is low, the environment is dry, and the production of organic biological functions should be better. Can reduce the loss of effective bacteria, less dust and good working environment.
70 tons of organic fertilizer raw materials, using organic fertilizer special granulator. After granulation, the material is sent to the dryer by belt conveyor for drying. The particle size is 3.0-4.0 mm, and the granulation rate is more than 70%.
The recommended pelletizer is a new type of pelletizer for organic fertilizer.
(4) Drying (fertilizer dryer)
In the production process of biological fertilizer, not only does the moisture content of granules generally exceed the index after molding and need low-temperature drying, but also the moisture content of organic matter after fermentation is about 30% – 40%, and the granule after granulation is generally between 15% – 20%, which needs drying treatment, because the moisture content of fertilizer quality index is less than 14%.
The drying stage is an essential and important process in the production of biological fertilizer, which directly affects the yield, quality and energy consumption. It is very important to choose the type and specification of dryer and control the process conditions.
In order to avoid the death of effective living bacteria due to the high temperature in the drying process, the drying temperature of materials should not be higher than 60 ℃ (usually about 50 ℃). Therefore, the temperature of hot air in contact with materials should be different.
For the moisture content of different materials, generally not more than 130 ℃, it is better to control the hot air temperature by stages, which can not only improve the thermal efficiency, but also effectively avoid the death of living bacteria.
According to these characteristics, the belt dryer is suitable, because it is suitable for low temperature and low humidity drying, and it can control the temperature of hot air in sections to ensure that the material temperature is not higher than the drying temperature, and maintain the highest temperature in the whole process.
The tail of the dryer can also add natural air cooling part, and cool the material immediately after drying, It can be used many times.
It is very suitable for granular biological fertilizer, with drying permeability, stable and uniform drying of materials, no damage to particles, adjustable residence time and feeding speed to achieve the best drying effect, because most of the thermal circulating air has high thermal efficiency, and the heat source can be used.
There is a secondary granulation area in front of the steam dryer provided by the biogas boiler, The material can be granulated there. Then, the material is lifted up through the plate to be completely dried. The exhaust machine exhausts the humid hot air through the pipe at the end of the dryer, and the air enters the precipitation chamber for precipitation.
After precipitation, the tail gas is removed by the washing tower, and the ejected water is pumped out for recycling. After secondary dust removal, the waste gas is discharged into the atmosphere through the chimney.
(5) Cooling (drum cooler)
The dry material is cooled by belt conveyor and sent to cooler. The cooling process mainly includes using fan to send natural air to cooler through pipe to cool the material.
The wind direction in the cooler is counter current. The waste gas pumped into the settling chamber by fans and pipes is treated and discharged into the atmosphere as dry waste gas
After cooling, the material is screened, the crushed large particle material and the screened powder are transported to the granulator through the return belt for granulation, and the final product is packaged in the automatic packaging system.
It is an ideal product for the majority of users. The project has also won the approval of the soil durable fertilizer Station of Henan Provincial Department of agriculture, which is a national environmental protection technology promotion project.
Secondly, it is necessary to use semi wet material crusher equipment of organic fertilizer to crush livestock manure and raw materials. Raw material matching is one of the important processes of organic fertilizer production line.
The complete organic fertilizer production line includes three processes
2. It is especially suitable for high viscosity materials. The material of fertilizer granulator should meet the production requirements of pressure, temperature and catalyst resistance, and keep the product clean. Due to the different materials of fertilizer granulator, the production process and structure of fertilizer granulator will be different, so it can be divided into steel, lining equipment, etc.
The complete organic fertilizer production line includes three processes
3. High temperature energy can be obtained after the raw materials are dried, and the next step is to cool them at low temperature. Since water cannot be used for cooling, it is necessary to separate the contact between material and water through cooler. The screening machine will screen unqualified organic fertilizer particles. The screening equipment has the advantages of high efficiency and easy operation. More details, go to https://organicfertilizerplants.com/organic-fertilizer-production-process/
A lot of garbage produced by residents every day can be used, and can be processed into organic fertilizer raw materials after secondary treatment. The market position and broad development prospect of organic fertilizer production equipment can be predicted. Automatic organic fertilizer production line is the most skilled equipment in the industry.
It can work independently without help, and has high precision, avoids the waste of resources, improves the qualified rate of products, and improves the qualified rate of products. Save a lot of unnecessary economic expenditure. It can not only save costs for the company, but also create greater economic benefits for the company, with higher output, so that the goods can enter the market at the fastest speed and the best time, and obtain a higher market share. sales volume.
Today, the development of organic fertilizer production equipment has expanded to high-speed, complete set, highly automated and diversified fields. The diversified development of organic fertilizer production equipment is inseparable from the efforts and struggle of enterprises, because in the face of such a development environment, if we want to further the development of enterprises, we must let the domestic market organic fertilizer production equipment is moving towards the road of automation.
The equipment needed for the production of biological fertilizer will make a difference in the limited market. Some technologically backward, smaller manufacturers will be driven out of the market and forced to shut down. Therefore, if you want to have a larger application group forever, you must do a good job in communication with customers, do a good job in market research, and finally make the organic fertilizer production equipment better meet the demand and serve the public.
So is organic fertilizer. In the past, farmers used accumulated organic fertilizer directly. Nowadays, with the improvement of living standards, high-tech equipment is also used for large-scale production of organic fertilizer. Is to make life more convenient production of production equipment.
In the process of organic fertilizer production, powder materials are transported to disc granulator by belt conveyor. The inclination angle is 50 ° The turntable rotates with the material. Like rotary drum granulators, disc granulators use wet granulation to shape particles.
When the material reaches a certain height, its gravity and inertia separate from the disc, slide along the bending path, and complete the rolling required by granulation under the action of force.
At the same time, the liquid sprayed by the spraying system is evenly sprayed on the rolled material to condense into particles, so as to complete the whole granulation process.
Granular organic fertilizer is a complex production process in organic fertilizer. Therefore, the required organic fertilizer production process equipment is more complete. In order to make the production rhythm more smooth and ensure the quality of organic fertilizer, the quality and application effect of the production equipment of organic fertilizer are relatively strict. Therefore, it is recommended that users choose equipment from large factories to ensure the quality of organic fertilizer. The following is the introduction of the whole set of organic fertilizer production process equipment.
1. fermenting compost equipment: fermentation compost flipper is an essential equipment in the process of organic fertilizer fermentation, and fermentation is also the most important process in organic fertilizer production, which directly determines the success of organic fertilizer production. The main function of the tipper is to speed up the fermentation speed of raw materials, so that the raw materials can be fermented more evenly. The other is to control the fermentation temperature during fermentation.
2. semi wet material crusher: semi wet material crusher can break the fermented raw materials into powder. It is the necessary equipment for the production of powdery organic fertilizer, and also the necessary pretreatment equipment for the production of granular organic fertilizer.
What kind of equipment is needed to produce granular organic fertilizer?
4. organic fertilizer granulating machine: This is the most important equipment in the production line of granular organic fertilizer. There are many types of granulator, which is designed for different types of raw materials. In order to improve the success rate of granulation or meet the special needs of users.
5. Organic fertilizer dryer: the dryer is mainly used to dry the excess water in the granular organic fertilizer particles. The dried particles have high strength and are not easy to deform and degrade during transportation and storage.
6. organic fertilizer Cooler: because of the high temperature of dry particles, rotating cooler must be used to cool particles quickly, eliminate the hot gas of particles, and accelerate the cooling and forming of particles.
7. drum screen: the main function of the screen separator is to classify the particle size, and the qualified particles will enter the next process, and a small part of the particles that are too large or too small will be returned. The corresponding process is treated twice, thus forming a complete process production.
8. automatic packaging machine: even if qualified particles are transported to the finished product workshop, they shall be quantitatively packed by the packaging machine to improve the production efficiency.
The above is a complete set of equipment for the production process of granular organic fertilizer. Please pay attention to learn more about organic fertilizer equipment!
China has a vast territory and rich raw material resources for organic compost equipment. It is understood that the final urine excreted by a pig in a year can be combined with bedding material to produce 2000-2500kg of high-quality organic compost, which is enough for one mu of land to use chemical compost throughout the year. The content of components is more than 6%, and the content of organic matter is more than 35%, which is higher than the national standard.
In the organic compost production line, we can use the drum granulator, or we can equip the drum granulator in the organic compost production line to complete the production process of NPK compost granulator. The granulation method completes the production process. This is different from rolling compost granulator, which usually uses dry granulation method to produce compost granulator.
In the bio organic compost production line, different types and series of compost equipment should be equipped to complete the production process. These machines play different roles in the compost manufacturing process.
In the production of compost granulator, the compost granulator should be designed and equipped on the production line to manufacture bio organic compost granulator. In the biological compost production line, we can use the flat mold granulator to manufacture the biological organic compost granulator, and we can also use the drum granulator. Complete the granulation process on the production line.
In addition, if you want to produce high quality NPK fertilizer granules in a simple step, our factory will provide you with fertilizer granule mixer. You just need to batch NPK fertilizer according to the formula, and then our bbfertilizer mixer will mix them evenly. Finally, you can get a good mix of NPK fertilizer particles.
Raw materials for NPK fertilizer production: raw materials include urea, ammonium nitrate, ammonium chloride, ammonium phosphate, potassium, chloride, etc., which are provided in a certain proportion.
2. Raw material mixing: evenly mixing the prepared raw materials to improve the uniform fertilizer efficiency of the whole fertilizer particles. In the production of NPK fertilizer granulator, roller granulator can be used to complete the fertilizer production process.
And series fertilizer equipment can also be used in the production process of organic fertilizer.
The fertilizer machine manufacturer of the organic fertilizer production line will tell you the reason for the caking of organic fertilizer. The sx manufacturer of the organic fertilizer production line said in the last article that in fact, the premise of prevention is to find out the cause of caking. Everyont also knows that caking is not conducive to the use of organic fertilizer, and has a certain impact on the production and use of organic fertilizer. Want to answer why pig manure organic fertilizer production line caking.
We usually use the materials for fertilizer production, such as ammonium salt, phosphate, trace element salt, potassium salt, etc., most of which contain crystal water and are easy to absorb water and caking, such as ammonium sulfate, which is easy to caking in use. When urea meets with trace element salt, it is easy to agglomerate when releasing water, mainly because urea replaces trace element salt. The crystal water becomes mushy and agglomerates.
In the process of chemical fertilizer production, chemical fertilizer production is generally non closed. In the production process, the higher the air humidity is, the easier the fertilizer is to absorb water and caking. If the weather is dry or the raw materials are dry, the fertilizer will not agglomerate easily.
Organic fertilizer production line
The higher the room temperature of extruder granulator, the easier to dissolve. Generally speaking, raw materials will dissolve in their own crystal water, leading to caking. The higher the temperature of nitrogen, the water will evaporate and not caking easily. The temperature is usually higher than 50 ℃. We usually need heating to reach this temperature.
The greater the pressure applied on the fertilizer, the easier the contact between the crystals and the easier the agglomeration; the smaller the pressure applied, the less the agglomeration.
The longer the fertilizer is placed, the easier it is to agglomerate. The shorter the time, the less likely it is to agglomerate.
Granulators used to convert organic fertilizer into thread and teeth can make various materials into specific shapes. This is a special molding equipment. The equipment uses the aerodynamic force formed by the internal high-speed rotating mixer to realize the mixing, spheroidizing and densification process of fine powder in the machine.
Conversion granulation is the wet granulation of agglomerates by a certain amount of water or steam, so after adjusting the humidity, the basic fertilizer will have a complete chemical reaction in the barrel. Under certain liquid conditions, the rotation of the barrel will squeeze the material particles. The pressure condenses back into a ball.
The combination of the two granulation methods makes the prepared particles have higher sphericity and more beautiful appearance. At the same time, it saves energy and has high energy efficiency.
Main features of drum granulator:
1) Low investment, good economic benefit and reliable performance;
2) Low energy consumption, no three wastes emission, stable operation, convenient maintenance, reasonable process layout, advanced process and low production cost;
3) The ball has high strength, good appearance quality, corrosion resistance, wear resistance and low energy consumption;
The working principle of the drum granulator is that the belt and pulley are driven by the main motor and transmitted to the drive shaft through the reducer. The driving gear meshed with the big gear ring is fixed on the vehicle body. Work with each other.
Material is added from the feed end through the cylinder. Through the function of the special structure inside the cylinder, it is made into particles, and then flows out through the outlet. Due to the continuous entry of materials and continuous rotation of granulator, mass production can be realized.
The whole fertilizer granulator can be divided into five parts
1) Support: the whole rotating part of the organic fertilizer drum granulator is supported by the support, which bears greater force. Therefore, the supporting wheel frame of the machine is welded with medium carbon steel plate and channel steel, which has passed the strict quality control and special process requirements and achieved the purpose of the machine.
In addition to fixing the bracket on the shelf, considering that it will cause greater friction with the rolling belt of the car body, our factory specially selects anti-corrosion and wear-resistant materials to greatly extend the service life of the machine. Casting integration technology is also used. In addition, there are hooks on the four corners of the roller carrier, which is convenient for loading and unloading.
2) Transmission part: the transmission part of the whole granulator is very important to the whole body. The transmission frame is welded by channel steel and has passed the strict quality requirements. Installed on the gearbox, the main motor and reducer of our company use ISO products with reliable performance and reliable quality. The motor drives the pulley, V-belt and reducer to the spindle to make the body work. The transmission reducer is connected with the working parts of the main shaft through a nylon shaft pin connector.
3) Big gear: fixed on the body, with gear pinion, the opposite drive body work, using high-tech wear-resistant materials, so that the service life of the machine is longer.
4) Rolling belt: fixed on both sides of the fuselage, supporting the whole fuselage.
5) Body part: the body part of the whole granulator is particularly important. It uses high-quality medium carbon steel plate, built-in special rubber lining or acid resistant stainless steel lining for welding, in order to achieve automatic scar removal and tumor removal, eliminating the traditional scraper equipment, and through strict quality control and special process requirements, to achieve the purpose of this machine.
The production of organic fertilizer or bio fertilizer granulating machine can use fertilizer manufacturing technology, and a complete fertilizer production line is designed to produce pelletizer, and different types of fertilizer machines are equipped in the process of fertilizer manufacturing.
The so-called bio organic fertilizer production line is actually the ordinary organic fertilizer production line. The main reason for the difference between biology and common organisms is that in the process of production, the production line of bio organic fertilizer increases the link of adding microbial agents, which leads to the final production of organic fertilizer and bio organic fertilizer.
The production line is organic fertilizer fermentation. In order to better explain the difference between the two production lines, let us first understand the difference between the production process of organic fertilizer and the production process of biological organic fertilizer.
Flow flow of organic fertilizer production line:
The basic process of the production line is as follows: the use of fermentation compost dumper to collect raw materials, and then stack and ferment raw materials can save more time. Next, the raw materials are crushed by the fertilizer pulverizer, and then screened by the screening machine. Raw material, then premixed. Next, the granulator is made by a fertilizer granulator. After granulation, the granulator is treated with a dryer and a cooling machine. Finally, the screening machine is used to screen and pack the high quality fertilizer.
Process flow of bio fertilizer production line:
In the process of bio organic fertilizer production line, raw materials shall be collected first, then bio fermentation with organic fertilizer starter shall be used to complete fermentation of semi-finished organic fertilizer products, then premixes shall be crushed and then pelletized, and then the granulator shall be dried and cooled by the fertilizer dryer dryer and cooling machine. Finally, the second screen and the pelletizer are packed.
From the above two kinds of organic fertilizer production, we can see that fermentation is the first and most important link of organic fertilizer production, because the final use effect of the organic fertilizer is in this link.
Since the mid-1980s, extrusion method has been greatly developed, and more and more industrial production equipment has been established in various places. Now, extrusion granulation compound fertilizer production line technology has become an international fertilizer research center. A new production technology of compound fertilizer was recommended.
Working principle of extrusion granulation of compound fertilizer production line:
The material is fed into a pair of counter rotating roll gaps (bite zones) of the roll granulator. To form a compact sheet of material under extrusion. After crushing and sieving the flake, the granular product with the required size can be obtained.
The formation mechanism of extruded pellets in compound fertilizer production line is as follows
At present, the general explanation of the material forming mechanism in the extrusion process is that after the material is compressed, the particles will be rearranged, and the air between the particles will be removed, so as to remove the voids in the material.
After further compression of the material, due to their different characteristics, the material particles will be in the following two situations: when the material is fragile, some particles will break, thus filling the remaining gap. In addition, if the atoms or molecules in the environment can not be rapidly decomposed into new particles, the free chemical bonds on the broken new surfaces will form strong recombination bonds when the new surfaces contact each other.
In the extrusion process of pelletizer used for fertilizer, the particles of material can also form solid bridge. The energy supplied to the system in the form of pressure will generate heat energy at the contact point of the material particles, thus melting the material. When the temperature of the material decreases, a solid bridge is formed.
Main equipment of extrusion granulation compound fertilizer production line
1. Forced feeder
One of the advances in extrusion granulation compound fertilizer production line technology is the use of forced feeding in fertilizer granulator, which is usually achieved by the driving force of screw. The extrusion process adopts the form of gravity free feeding.
Forced feed, easy to control the feed speed and reduce the slip phenomenon in the bite area. More importantly, the material can be partially degassed and compacted in advance in the forced feeder, thus greatly improving the product quality.
2. Crushing equipment
The flakes obtained by extrusion must undergo a so-called granulation process, such as crushing and sieving, to obtain the desired size of particles. The progress of pelletizing equipment is mainly due to a lot of experience gained in the relationship between the form of crushing equipment and products.
Zhengzhou SX Granulator Manufacturing Factory vigorously promotes energy-saving, environmental protection, high-efficiency new extrusion granulation compound fertilizer production line technology, and continuous progress and improvement.
Nutrient balance method is mainly used to determine the amount of fertilizer. The basic concept of nutrient balance method is that the nutrient absorption of crops is equal to the sum of nutrient supply of soil and fertilizer.
An organic fertilizer making machine converts fertilizer and straw into organic fertilizer. Part of the nutrients provided by chemical fertilizer for crops must be realized by fertilization. However, the amount of fertilizer applied to crops is not exactly the same as the nutrient supply of fertilizer. Since the crops in the current season only absorb and utilize part of the nutrients entering the farmland, considering the fertilizer utilization rate, the fertilizer amount can be calculated by the following formula:
The amount of fertilizer applied to crops refers to the amount of certain nutrient elements. For specific chemical fertilizer varieties, the actual amount of chemical fertilizer should be calculated according to the following formula:
Planned crop fertilizer amount (kg) = physical fertilizer amount (kg) × active ingredient content (%)
1. The total amount of nutrition required for planned yield (kg) = (planned yield / 100) × the amount of nutrition required per 100kg yield.
The plan is to increase the average yield of local crops by 10% to 15% in three years.
2. Soil nutrient supply (kg) = (yield of no fertilizer area / 100) × the amount of nutrient required per 100kg yield.
Soil fertility is usually estimated by soil sampling and testing. In the absence of laboratory conditions, it can also be estimated by the yield without fertilization (blank yield).
3. Generally speaking, the fertilizer utilization rate in current season is 30% – 35% for nitrogen fertilizer, 20% – 25% for phosphorus fertilizer and 25% – 35% for potassium fertilizer. According to the proportion, the double roll granulator can be used to treat NPK fertilizer.
1. In the solid granulation process of rotary drum granulator, urea, ammonium chloride, ammonium sulfate, potassium chloride and other single base fertilizers are used as raw materials and mixed in a certain proportion (mainly determined by the local market demand and soil test results)).
3. The material is sent to the drum granulator by belt conveyor, and agglomerates to form particles through a series of humidification and heating processes.
4. The particles here are only semi-finished products. They need further treatment, including drying, screening, cooling and packaging. After all these steps, high quality compound fertilizer products can be obtained.
Drum granulator is the key equipment of NPK fertilizer granules production line, which is suitable for cold and hot granulation in large and medium-sized compound fertilizer plants. It and ordinary fertilizer granulator are wet granulation. By adding a certain amount of water and steam, the raw materials in the drum will become even and moist in the granulation process. Then, as the drum rotates, the material will combine and roll into particles. The fertilizer particles are spherical with a diameter of 3-4mm.
Drum granulator is the key equipment of NPK fertilizer production line, which is suitable for cold and hot granulation in large and medium-sized compound fertilizer plants. It and ordinary fertilizer granulator are wet granulation. By adding a certain amount of water and steam, the raw materials in the drum will become even and moist in the granulation process. Then, as the drum rotates, the material will combine and roll into particles. The fertilizer particles are spherical with a diameter of 3-4mm.
1. High granulation rate, drum granulator can adjust speed and control granulation.
2. Using solid granulation method, raw materials are easy to obtain and processing is relatively simple.
3. Liquid and steam injection is easy, and pipes and frames are provided.
4. Low investment, low production cost and high return.
5. The drum granulator uses the corrosion-resistant rubber engineering plastic as the lining to better protect the material from drum damage.
6. The particles produced belong to the secondary processing of base fertilizer, so there is almost no environmental pollution problem.
7. High quality steel and gear, stable operation, low noise.
8. Equipped with armrest shovel to help clean the roller.
After humidifying in the tank, use a certain amount of water or steam to make the basic fertilizer fully react. Under certain liquid phase conditions, with the help of the rotation of the cylinder, the material particles are extruded. The pressure condenses back into a ball.
The drum granulator of organic fertilizer equipment is filled with steam, ammonia or phosphoric acid or nitrogen solution, ammonia phosphorus slurry, and heavy calcium slurry to complete the chemical reaction and heating granulation process of compound fertilizer in the barrel; or a small amount of water is added to make the compound fertilizer cold granulation.
The material to be pelleted is rotated through the cylinder and bonded to form a ball under certain humidity and temperature to complete the pelleting process.
In the pelletizing process of drum fertilizer granulator, the powder material is mainly cladding type, so the material circulation volume needs to be large, so that the material can form large particles in the cladding process. When the water content in the material is large, the water injection should be reduced to make the fertilizer made into granules absorb less water.
When granulating with this combination method, if the water content in the material is small, more water injection is needed. Because the materials are combined with each other, the gap between the powder particles needs to be filled with water. As the understanding of granulation process has been deepened, some suitable monitoring tools have been developed, so the granulation process can be simulated and controlled automatically by computer.
1. Stir. According to the formula proportion, the auxiliary materials are added to the composting raw materials, and the auxiliary materials are evenly mixed through the organic fertilizer mixer. If it is pure sheep manure, please skip this step.
Fertilizer Crushing Process
2. Crushing. The raw materials are crushed into uniform size by an sx organic fertilizer grinder. After crushing, the raw material has good appearance and even organic content. If someone buys crushed organic fertilizer, it can be sold.
Fertilizer Granulation Process
3. Granulation. Some markets are keen on granular organic fertilizer, so they need to use organic fertilizer granulator, drum granulator, disc granulator and other equipment to further process it into granular organic fertilizer. Granulating equipment processes powdery organic fertilizer into granular organic fertilizer. Granular organic fertilizer has higher quality, more popular price and higher price.
Bio organic fertilizer granulator is also a kind of organic fertilizer, bio organic fertilizer granulator has more advantages for fertilizer plants production. So how does biofertilizer production work? How to use bio organic fertilizer particles?
Bio Fertilizer Production VS Organic Fertilizer Producing
Compared with organic fertilizer granulator, the production of biological fertilizer is not complicated, but the key factor is the seed selection of fertilizer granulator. Generally speaking, flat mold granulator and new type organic fertilizer granulator are always used in the production of bio organic iron granulator. In addition to the fertilizer granulator designed for the production of bio organic fertilizer for bio fertilizer production, the bio organic fertilizer production line is also designed for the production of bio organic fertilizer granulator.
Application technology of bio organic fertilizer
So, what is the application technology of bio organic fertilizer in the production of fertilizer granulator? In order to take advantage of the advantages of Biofertilizer granulator, fertilizer should be used in the appropriate environment. Generally speaking, in the long-term dry weather environment, the application of bio organic compound fertilizer should not be mandatory, but moderate after rain.
And then appropriate amount of fertilizer. The organic matter and other nutrients of bio organic compound fertilizer are different in the production standards of various enterprises. When applying fertilizer, we need to see the nutrient content of fertilizer formula, but also look at the soil texture and fertility to determine the amount of application. Finally, hybrid application.
Bio organic compound fertilizer has general and special uses. In order to reflect the quick and long-term effect, it should be mixed with quick acting fertilizer, especially high content compound fertilizer.
New technology with continuous development
Fertilizer manufacturing process is a new technology with continuous development. It is a professional fertilizer machinery manufacturer besides biological fertilizer production. It also designs other fertilizer manufacturing processes, such as NPK fertilizer production, organic fertilizer manufacturing process BB fertilizer production line, etc.
Well, if you have any questions about fertilizer machine or bio fertilizer production, you can leave us a message. We will provide professional advice in the process of fertilizer machine or fertilizer production.
At the beginning of the development of organic fertilizer, the product was powdery. Powder fertilizer is easy to cause separation, incomplete control, poor fluidity, difficult to achieve mechanized fertilization, easy to form dust and loss in the application process.
Ways to solve the problem of powder fertilizer
One of the ways to solve the problem of powder fertilizer is to realize the granulation of fertilizer. What are the nutrient leakage characteristics of granular organic fertilizer and powdery organic fertilizer in submerged soil? Detailed info on organic fertilizer granulation process and avaiable machines to use, welcome go to https://fertilizergranulatorfactory.com/
The results showed that after the fertilizer was applied to the flooded soil, the slow release performance of organic fertilizer was improved to a certain extent after granulation treatment of nitrate nitrogen, ammonia nitrogen, inorganic phosphorus and inorganic phosphorus in the soil leakage liquid; there were some differences in nutrient dissolution and leakage between granular fertilizer and powdery fertilizer, and the leakage loss of nitrate nitrogen and inorganic phosphorus could be significantly reduced by applying granular fertilizer.
How to turn organic powder into fertilizer granules?
From this point of view, the manufacturing process of organic fertilizer is to process raw materials into granules. Compared with powder, the particle market is broader and the price is more favorable. But for investors, whether they choose powder organic fertilizer equipment or granular organic fertilizer equipment, they must draw a conclusion according to their own specific situation.
How to choose a quality machine for quality powder organic fertilizer granulation?
The first thing to consider is personal financial strength. After all, the sx granular organic fertilizer production line needs to add more equipment, such as double roll granulator, organic fertilizer granulator, flat mold granulator, disc granulator and sand blower. Different granulating equipment is selected according to the process.
How to use fertilizer granulator to make fertilizer granules?
The large angle inclined conveyor used in NPK fertilizer manufacturing process has the advantages of simple structure, reliable operation and convenient maintenance. It has the characteristics of large immersion conveyor, compact structure and less land occupation. It is an ideal fertilizer manufacturing equipment for large immersion conveyor and vertical lifting materials.
The main uses of large angle inclined conveyor used in NPK fertilizer manufacturing process are as follows:
1. Special conveyor belt is required for conveying materials with special requirements, such as high temperature materials containing acid, alkali, oil substance or organic solvent.
How to use it?
2. Within the dip angle range of belt conveyor
3. Corrugated wing conveyor belt is a general continuous conveying equipment for bulk materials. It uses a conveyor belt with corrugated wings and diaphragms. Therefore, it is especially suitable for large dip angle transportation.
Where can you use it?
4. The machine can be used in coal, chemical industry, building materials, metallurgy, electric power, light industry, grain, port, ship and other industries. It can transport all kinds of bulk materials with bulk density of 0.5-2.5t/m3 in the humidity range of – 15 ° C to + 40 ° C.
Dry granulation is a low-cost fertilizer processing technology, not wet manufacturing. In the manufacture of NPK fertilizer, the dry powder particles are directly rolled into the other one, leading to the formation of chemicals.
How to make npk granules?
This method is used in the environment that requires humidity and temperature control granulation, so it can not only produce NPK fertilizer, but also granulation in this way. Dry manufacturing is a kind of powder fusion method, which is used in pharmaceutical industry and chemical fertilizer process to improve the fluidity of powder by increasing particle size.
The roller granulator provides a powerful dry manufacturing process to produce particles with excellent fluidity. It is found that the fertilizer prepared by this method has good uniformity, compactness and low brittleness. The use of this method helps to reduce the physical and chemical limitations used to overcome materials.
Biological organic fertilizer rotary drum granulator can make organic fertilizer from rice straw, rice husk, manure and other wastes. It is an important granulation equipment for processing agricultural waste into organic fertilizer. Burning a large number of rice straw causes serious pollution to the environment and affects people’s health. In addition, the effect of straw burning on soil fertility was very low. Processing straw into organic fertilizer with high nutrient content not only avoids environmental pollution, but also has high return, high product quality and low production cost. It is of great theoretical and practical significance to develop biomass fuel and reduce environmental pollution.
Working principle of rotary drum granulator for bio organic fertilizer
Under certain pressure and temperature, the bio organic fertilizer powder is compressed into cylindrical fertilizer by rotary drum granulator. The granulator uses extrusion force and friction force to compact sawdust and straw under high pressure and high temperature in the process of roller and drum movement. The material enters between the drum and the roller. The rotary drum is driven by a motor through a current reducer to rotate and extrude the die hole, and finally form the granular material. The main parts of rotary drum granulator are granulation roller and rotary drum. There are two kinds of granulator in our factory: single mode and ring mould.
Characteristics of rotary drum granulator for bio organic fertilizer
Organic fertilizer granulator has the advantages of low consumption, simple structure and convenient operation.
The rotary granulator has many functions and can be used in one machine. It can not only produce organic fertilizer, but also can be used for pellet processing such as feed.
3 organic fertilizer rotary drum granulator has small volume, small power and large output. It can be customized according to the user’s output.
4 rotary drum organic fertilizer production line can save drying and cooling treatment and save cost.
Application range of rotary drum granulator
Rotary drum granulator can be used for organic fertilizer granulation, such as organic fertilizer sludge, straw, peat, etc.
Cake, vegetable cake, sesame cake and peanut cake were used as the main raw materials.
The rotary drum granulator can use corn, beans, rice straw, chicken manure as raw materials for feed and mixed feed. More info on the rotary drum granulator welcome to https://www.wastetofertilizer.com/rotary-drum-granulator/
Reducing and reusing is really possible with organic gardening. But organic fertilizer plays an important role. Because the fruits, vegetables and gardens are harvested from the soil. You need to maintain soil nutrients for your fruits and vegetables and crops.
Time to use organic fertilizer
Most garden soils contain the most basic necessities. But it may not be enough. More is needed to fully develop.
When nutrition is needed for crop growth
Brass, potatoes and some other plants are more demanding – compost or dry manure is essential – poultry manure particles and buttons continuous planting season
Organic fertilizers are very useful because supplements see particles of poultry manure again
Lawns, shrubs, hedges, trees… Garden compost and manure is still a great supplier – find more lawn and shrub fertilizer here.
When growing on thin fertile soil
Work in manure – continue to use organic fertilizer to make compost of better quality, and plant cloves and beans as green fertilizer digs. Check out the organic base fertilizer and decarbonized rock dust link here.
Some products cannot use organic fertilizer. You must consider the following:
Where does organic fertilizer come from? For example, are algae threatened by commercial development? Will mining calcified seaweed destroy marine life? Does your fish fat come from fish waste?
Do manufacturers use important resources or are they involved in pollution? For example, burning carbon from natural gas used to produce chemical nitrogen,
How can you do this? Transporting large amounts of fresh manure?
Is it excessive or wasteful? The use of urea has attracted many supporters, but they are all considered bad for organic gardening, are soil structural microorganisms destroyed?
Non drying fertilizer granulation technology is mainly used for products with low water content. Generally, moisture content below 10% is a critical value. (some materials can reach 16%, for example, some contain only crystal water). Some organic fertilizer manufacturing processes have low water content, no need to dry, and save energy.
Most of the particles produced by dry granulation are irregular particles (such as ordinary particle size potassium fertilizer), and their shape is similar to the shape of small gravel. The double roller granulator can produce all kinds of high, medium and low concentration NPK compound fertilizer and organic-inorganic compound fertilizer granulation, which meets the requirements of energy conservation and environmental protection.
Fertilizer granulation technology without drying extruder
The dry powder extruder consists of five parts: frame, head, pressure reducer, motor and crusher. It has the advantages of simple structure, high stability, convenient operation and maintenance, and strong adaptability of raw materials.
In the process of cocoa bean processing, there are a lot of wastes, such as bean shell, seed coat, seed embryo and so on. These wastes are treated and have certain use value. Cocoa waste is mainly bean shell, which contains more protein and fiber, and can be used as feed or organic fertilizer.
Bode shell is rich in nitrogen, phosphorus and potassium. Because the cocoa tree needs more potassium and the content of potassium carbonate in the bean shell is high, the bean shell is very suitable for the production of organic fertilizer raw materials.
Cocoa seed coating is also suitable for use as organic fertilizer. Fertilizer made from seed coating can reduce the viscosity of the soil and play the role of humus and humus. Seed coat is not easy to decompose. In the fermentation of organic fertilizer, seed coating needs to be pretreated, crushed into small pieces, and then composted for fermentation.
The production of organic fertilizer from cocoa waste can be divided into two stages: composting fermentation and organic fertilizer production equipment processing.
Fermentation composting of cocoa waste
The weight of bean shell accounts for a large part of the weight of cocoa fruit itself. After the cocoa beans are removed, the shells are usually discarded in situ. Pod shells are of great value. Therefore, the proximity principle should be adopted in the selection of organic fertilizer production site to facilitate the fermentation of raw materials.
Cocoa processing waste (bean shell, seed coat) is put into fermentation tank, and animal manure such as chicken manure, pig manure and cow manure are all added with regulating raw materials. After high temperature fermentation, harmful bacteria are killed.
Processing cocoa compost with organic fertilizer production equipment
Fermentation compost is produced into fertilizer products by the industrial processing of organic fertilizer production equipment. The basic fertilizer equipment for cocoa composting processing includes fertilizer crusher, mixer, organic fertilizer granulator, rotary dryer, rotary cooler and packaging machine. Different fertilizer products can be produced by different processing technologies.
Slow release controlled fertilizers release nutrients slowly in the soil to meet the nutrient requirements of the whole crop growth period. In the process of NPK fertilizer production, slow release and control of fertilizer are realized by granulation and coating.
Slow release fertilizer means that the release rate of available nutrients in plants is lower than that of fast fertilizer after fertilization in soil. Controlled release fertilizer refers to the regulation of nutrient release according to the set release mode and nutrient absorption law of crops. Release not only refers to the release period of fertilizer, but also refers to the release rate of nutrients in fertilizer, which conforms to the law of crop fertilizer demand.
Ideally, controlled release fertilizer can artificially control the supply and release rate of nutrients according to the nutrient requirements of different stages of crop growth. That is to say, nutrients can be released when crops need them and retained in the soil when they are not needed, so that a single application can meet all stages of crop growth.
NPK fertilizer production line processing slow release controlled fertilizer
NPK fertilizer production line can slow release and control fertilizer through fluidization treatment. The main production processes are: batch processing, mixing, granulation, drying, cooling, screening, coating, packaging. Fertilizer granulator is the key to slow release and control fertilizer processing. It determines the size, shape and hardness of fertilizer particles. Fertilizer granulator determines the appearance of the product, and the physical shape of the product also affects the fertilizer effect.
Rotary drum granulator is usually used for slow release and controlled fertilizer production for granulation. The roller granulator has the advantages of large production capacity, low production cost and spherical particles meet the production requirements of slow release fertilizer. The final stage of NPK fertilizer production and processing is coating. After particle coating, it becomes slow release fertilizer.
With the continuous improvement of agricultural science and technology, the promotion of high-yield varieties, the improvement of land re cultivation index, the vigorous development of economic crops, flowers and urban greening. The phenomenon of crop growth and soil nutrient ecological balance is becoming more and more serious, and the phenomenon of crop sulfur deficiency is becoming more and more serious.
Sulfur urea has become a popular fertilizer product in the market. It is coated with sulfur and other trace elements on the outside of urea by coater and pulverizer, so that the nutrients of fertilizer are released slowly. It is different from the technology of rotary drum granulator of compound fertilizer.
Why should sulfur coated urea fertilizer be used
1. sulfur coated urea can improve the utilization of fertilizer, similar to the granular fertilizer made by disc granulator, and can control the release rate of fertilizer nutrients. Especially, the utilization rate of nitrogen fertilizer can be greatly improved, the efficiency of fertilizer can be nearly doubled, and the agricultural investment can be greatly reduced and the environment can be protected.
2. increase crop yield greatly. The application of different soil and crop has a good effect on the yield.
3. the sulfur coated urea fertilizer can improve the quality of the crop products.
4. fertilizer can be used as soil conditioner, and the effect of the treatment of saline alkali land is good.
5. reduce labor input.
The application of sulfur coated urea fertilizer at one time can meet the needs of different growth stages of crops. With the high cost and shortage of modern agricultural labor cost, the application of sulfur coated urea in some crops also shows its characteristics.
For example, planting sugarcane, because the cane grows for months, it is not easy to mechanized fertilization after the crown is closed. In the early stage of self-growth, single fertilization can meet the needs of crops and is welcomed by sugarcane farmers. Strawberries grown in plastic mulch are also easy to apply nitrogen, so 70 percent of California’s strawberry growers use sulfur coated waste.
We provide a complete production line of sulfur coated urea, as well as the chemical fertilizer production equipment such as disc granulator, drum granulator, double roller granulator, coating machine, packaging machine and so on.
The physical and chemical properties, apparent structure and internal structure of products produced by different NPK compound fertilizer production processes are different. It leads to the difference of nutrient release, soil acidity and root zone nutrient change, which affects the relationship between nutrient release rate and soil nutrient supply and demand, and finally leads to crop growth. Differences in yield and fertilizer efficiency.
NPK Fertilizer Production Line Design Layout
Therefore, the difference of fertilizer efficiency between different processes of compound fertilizer is due to the differences of physical and chemical properties and structural characteristics of compound fertilizer itself, as well as the difference of manufacturing technology. In order to improve crop yield and fertilizer efficiency, NPK fertilizer production process must be improved.
NPK fertilizer production process solid aggregate method
In this method, single alkali fertilizers (such as urea, ammonium nitrate, ammonium chloride, ammonium sulfate, ammonium phosphate, potassium chloride and sulfuric acid) are used as raw materials. After grinding to a certain fineness, the raw materials are gathered and granulated in the drum of the rotary granulator by adding water and heating.
In the process of granulation, a small amount of phosphoric acid and ammonia can be added into the rotary drum granulator to improve the granulation conditions of NPK fertilizer production. It is one of the methods widely used in the world to obtain compound fertilizer products by drying, sieving and cooling granular materials. This method was used by the early United States, India, Japan, Thailand and other Southeast Asian countries.
Production of NPK compound fertilizer by solid polymerization
Zhengzhou SX fertilizer machine manufacturer, with strong technical strength, advanced fertilizer granulation technology, excellent product quality and perfect service system, has become a fertilizer production equipment industry by customers praise and trust manufacturers. We provide NPK fertilizer production machinery, and can design professional compound fertilizer production process for you. Our NPK compound fertilizer production equipment sells well in China, as well as the United States, South Korea, Malaysia, Australia, Thailand, Vietnam, Indonesia, Philippines, Pakistan and other countries.
Roller granulator specially designed for fertilizer manufacturing process. Fertilizer granulator is the main compound fertilizer granulation equipment, which has a broad market in domestic and international markets.
Processing principle of fertilizer roller extruder granulator
Roller extrusion granulator is a kind of drying granulation process which uses pressure to gather solid materials. The material is extruded by two counter rotating rollers, which are driven by an eccentric sleeve or hydraulic system. When extruding the solid material, the air between the powder particles is removed first, and the particles are rearranged to eliminate the gap between the materials.
When the brittle material is extruded, some particles are crushed and the fine powder fills the gap between the particles. In this case, if the newly formed free chemical bonds on the surface cannot be quickly saturated by the atoms or molecules in the surrounding atmosphere, the newly formed surfaces will contact each other and form strong recombination bonds.
When the material is extruded, the particles will deform or flow, resulting in a strong van der Waals attraction. In the extrusion process, the energy formed by pressure forms a hot spot at the contact point between the particles, which leads to the melting of the material, the temperature drop and the material cooling to form a fixed bridge. The thickness of large parts produced by extrusion is 5-20 mm, and the surface density is 1.5-3 times of feed. Large pieces, crushed and screened to obtain the required particles.
Fertilizer roller extruder granulator
The double roller of granulator is the key of fertilizer manufacturing process. The following is a brief description of how to adjust a volume.
1. Adjustment of roller clearance
First, loosen the bolts on the bearing housing, rotate the eccentric sleeve, and adjust it to the required thickness, so that the eccentric sleeve exerts radial force on the drive shaft. When adjusting the gap between the two rollers, the two rollers cannot collide. The minimum value should be maintained between 0.4 and 0.6 mm. Then tighten the bolts on the bearing pedestal.
2. Adjust the ball sleeve accordingly
First, loosen the bolts on the bearing seat, such as the axial dislocation of the ball sleeve, adjust the two eccentric sleeve cover bolts to make the shaft move left and right, so as to adjust the ball sleeve relatively. Tighten the bolts on the bearing housing. If the ball sleeve is not up to right, first release the bolt of the adjusting board, then adjust the top line of the concave part of the adjusting board, so that the reverse shaft can slightly turn to the spherical socket. Then tighten the bolts of the commissioning panel and loosen the top wire for use.
Biological fertilizer production equipment is mainly used for granulation processing of compound fertilizer, biological bacterial fertilizer, clay, crop straw, biogas residue, organic fertilizer of body acid, animal manure, rice husk, household garbage and various crude fibers.
In the production of biological fertilizer applicator, the flat mold granulator is commonly used as granulation equipment. The granulator has low material requirement and high granulation rate. Maintenance is an important method to avoid abnormality in the production of biological fertilizer device.
1. When storing the granulator, the dust should be removed and the chassis plane of the mobile device should be kept clean in time. In order to avoid the product can not be damaged by material, the movable bearing can not move smoothly on the chassis, which will lead to serious accidents.
2. Good lubricating oil is of great help to bearing life, so operators should ensure that the lubricating oil injected is as clean and well sealed as possible.
In the process of fertilizer granulator, if the load current of main motor is too small, the possible reasons for operating current less than 60% are as follows:
1. The feed rate is too low, and the granulator does not meet the pressure range required for granulation.
2. The content of urea nitrogen in raw materials is too high. The flat die extruder extrudes the material into a strip and cannot round the particles.
3. Due to the high moisture content of raw materials, the fertilizer granulator can not extrude the granules out of long strips and throw them into the round granules.
Solution: adjust raw material moisture or formula, adjust feed rate.
Flat die extruder granulator
If the current fluctuation of the pelletizing load is too large to exceed the rated current value during the operation of the flat die extruder, the possible reasons are as follows:
1. The impurity of material is too thick and the mould hole is blocked too much, which leads to the high pressure in the granulation area.
2. The content of crude fiber is too high. Water content is too low or uneven, extrusion pressure is too high, temperature is too high.
Solution: adjust the moisture or formula of raw materials, select raw materials, remove impurities, and then granulation, remove abrasive tools of the granulator, and clean the impurities inside.
Double roller granulator is an important fertilizer granulator in NPK compound fertilizer industry. Using the extrusion principle, the fertilizer granules with a diameter of 3.5-10 mm are formed, and the granulation rate is higher than 85%. Double roller granulator is a common granulation method in NPK fertilizer production process. It does not dry at room temperature (moisture content is 2% – 5%).
Low cost and fast granulation speed bring good economic benefits for compound fertilizer investment.
Working principle of double roller granulator
Double roller fertilizer granulator machine is the representative of fertilizer granulator with extrusion mode. The dry material is compressed into a hard material. Dense blocks under pressure are extrusion processes. The blocks are then crushed, screened and pelletized, which is the granulation process. The function of extrusion is to squeeze the air between particles, so that the distance between particles is close enough to produce interaction. The hardness of particles produced by rolling is mainly attracted by intermolecular forces. Our double roller granulator is continuous extrusion of materials.
In NPK fertilizer production process, roller granulator has the following advantages compared with other fertilizer granulators:
Double roller granulator for NPK fertilizer production
1. There is no drying system in the fertilizer processing process of roller press granulator. The fertilizer can be granulated at room temperature with a moisture content of 2% – 5%. It forms once and costs less.
2. Rouble roller granulator has small power, reliable motor, no waste discharge, stable granulation and convenient maintenance.
3. Roller granulator has wide adaptability to raw materials. It can be used for granulation of compound fertilizer (including organic fertilizer, NPK fertilizer, biological fertilizer and magnetic fertilizer), mineral powder, chemical industry, feed and other raw materials.
4. This granulator has advanced structure, advanced technology and good economic benefits;
5. Popularize the series production of domestic fertilizer such as rare earth fertilizer, ammonium bicarbonate fertilizer and polysulfate fertilizer.
In the process of compound fertilizer production line, the material must be dried and cooled. At this point, a dryer, cooler and screening machine are required. Many customers are not familiar with chemical fertilizer processing technology. Here is how to dry and cool the materials in the fertilizer production line.
The particles to be dried processed by NPK fertilizer granulator are transported to the feed port of the feeder through the belt conveyor, and the granular materials flow into the drying cylinder along the feed trough. The feeder is mounted outside the drying cylinder.
Driven by the deceleration drive system, the granular material moves backward with the rotation of the drying cylinder, and the heated hot air is blown into the feed end. It directly contacts the material of the drying cylinder, evaporates its water vapor and dries it.
In the drying process, according to the drying degree of the material, the deceleration drive system can adjust the speed through the frequency converter.
Dry and cold particles in compound fertilizer production line
The intermediate sensing draft hood draws steam from the drying cylinder. Then, as the drying material rotates, it enters the cooler again. Under the action of the middle induction draft hood, the natural wind enters the cooler from the unclosed end.
As the cooler rotates, the material is picked up and the material temperature is directly reduced to the natural temperature. After that, the granular material will enter the drum screen, and the unqualified material will be screened out from the drum screen, and the qualified material will go directly to the next packaging part. More info on compound fertilizer production, welcome to https://fertilizerplantdesigner.com/compound-fertilizer-production-line/
In the process of using organic fertilizer production equipment, if the safety in the operation process is strictly observed, the granulation rate will be effectively increased, the energy consumption will be reduced, and the service life of the equipment will be extended. Therefore, from the following aspects, we can adjust the pan granulator to make the fertilizer production reach the optimal state.
1. Strictly control the powder quality
（1） It is strictly forbidden to have iron block, stone larger than 10 mm and wood block larger than 10 mm in raw material discharge and supply of fertilizer production line. Rice bran and sand can not exceed the quality index, too much will cause the low output of the pan granulator.
(2) According to the formula of NK compound fertilizer, the quality of chemical fertilizer and other raw materials should be strictly controlled.
2. Transform the new blade in the CD
The blade of disc granulator is good, and the particle size is uniform and beautiful. The blade is divided into front blade and rear blade, and there is no gap between the two blades.
3. The main technical key of operating the disc granulator
(1) Do a good job in the technical training of personnel before operation, improve the technical quality and operation skills of the staff.
(2) The particle size of compound fertilizer is 70-90 mesh.
4. Select and adjust the nozzle of disc granulator
(1) The working mechanism of nozzle must be mastered when selecting nozzle
According to the hydrodynamics, it is proved that the bigger the pressure is, the smaller the through hole is and the larger the droplet diffusion surface is. At the same pressure, the spray hole is small, the droplet density is small, the spray hole is large, and the droplet density is high.
(2) How to choose the model and specification of nozzle
The smaller (or larger) the feed droplet and the smaller (or larger) the particle size, the lower (or higher) the yield of the fertilizer production line.
The denser (or thinner) the droplets, the higher (or lower) the output of the droplets they make (or smaller).
The content of soil organic matter is closely related to soil fertility. Although organic matter only accounts for a small part of the total soil, it plays an important role in maintaining soil fertility. The manufacturer of organic fertilizer production equipment introduced six functions of organic matter to maintain soil fertility.
1. Provide nutrition for plants
Soil organic matter contains a large number of plant nutrient elements, such as N, P, K, CA, Mg, Sn, Fe and other important elements, as well as some trace elements. Soil organic matter releases a large amount of nutrients through the mineralization process to provide nutrients for plant growth; humus synthesizes humus and preserves nutrients; humus releases nutrients again through mineralization process, so as to ensure the nutritional requirements of the whole plant growth process.
2. Promote plants to absorb other nutrients
In the process of decomposition and transformation of soil organic matter, the organic acid and thermal acid produced by the decomposition and transformation of soil organic matter have a certain solubility to the mineral part of the soil, which can promote the mineral differentiation and is conducive to the availability of some nutrients. Some metal ions combined with organic acids can be retained in soil solution without causing precipitation and affecting its availability.
3. Promote plant growth and development
Soil organic matter, especially polyphenol functional group, can enhance the plant respiration process, improve the permeability of cell membrane, promote the rapid introduction of nutrients into plants, and promote the growth of plant roots. Soil organic matter also contains vitamin B1, B2, propionic acid, nicotinic acid, hormones, IAA (+) – Non-Ethylene diacetate), antibiotics (streptomycin, penicillin), etc., which can promote plant growth and enhance disease resistance.
4. Improve soil physical properties
Organic matter has many functions in improving soil physical properties. The most important and direct function of improving soil structure is to improve soil structure, promote the formation of aggregate structure, increase soil looseness, and improve soil air and water permeability. Humus is the main cement of soil aggregate. Hu mu in the soil rarely exists in free state. Most humus and mineral soil particles combine with each other. Through the mechanism of functional group and hydrogen bond, the organic-inorganic complex is formed by wrapping the surface of mineral soil particles in the form of adhesive film. The distribution of agglomerates is reasonable, the stability of large, small holes and water is strong, and the structure is good. In arid areas, organic matter can reduce the expansion and contraction of soil by increasing soil viscosity, and prevent the emergence of large cracks when the soil is dry.
5. Provide energy for soil organisms
Without soil microbes, there would be no biochemical processes in the soil. The number, quantity and activity of soil microorganisms increased with the increase of organic matter content, and had a significant positive correlation. The mineralization rate of soil organic matter is low, and it will not stimulate microorganisms such as fresh plant residues rapidly, but provide energy for microorganisms continuously and stably. Therefore, the soil rich in organic matter has stable and long-term fertility, which is not easy to cause excessive plant growth and fertilization.
6. Activate phosphorus, potassium and other nutrients
Generally speaking, phosphorus in soil pool does not exist in the state of rapid action, but in the state of slow action and slow action, so the availability of phosphorus in soil is low; soil organic matter has the characteristics of reaction with insoluble phosphorus, which can improve the solubility of phosphorus, improve the availability of phosphorus in soil and the utilization rate of phosphorus fertilizer.
Organic matter plays an important role in soil. Organic matter is processed into balls by organic fertilizer granulator, which is widely used in farmland to maintain soil fertility. There has been a great increase in crop yield.
Benefits of organic fertilizer equipment processing granular fertilizer
Organic fertilizer has the functions of water storage, water saving, water reducing, evaporation reducing and drought reducing. It can reduce the application of chemical fertilizer, reduce the damage of saline alkali, regulate the soil, activate the activity of soil microorganisms, overcome soil hardening, and improve soil permeability.
Organic fertilizer mainly comes from crop straw, chicken manure, cow manure, pig manure and garden pruning waste. These raw materials are rich in a large number of beneficial substances, processed by organic fertilizer production equipment, and converted into treasures. On the market, organic fertilizers are usually made into solid particles and then sold.
What are the advantages of using organic fertilizer equipment to process granular fertilizer?
Advantages of organic fertilizer equipment in processing granular fertilizer
1. It is more convenient to apply granular fertilizer. Some organic fertilizers are light in proportion and easy to be dispersed by the wind when applied in the field, and become particles for easy application.
2. In the process of organic fertilizer granulating, some inorganic components can be added into the fertilizer to improve the fertilizer efficiency. If inorganic components are added to powdered organic fertilizer, it is easy to absorb water and aggregate. Granular fertilizer avoids this trouble.
3. Raw materials must be low in water to get powdery fertilizer, and compost must be crushed. The main limiting factor in the production of organic fertilizer is that the water can not be removed and needs to be dried. The granulation process of fertilizer can produce high temperature without drying. It just needs cooling, which is very convenient.
However, if we do not carry out scientific treatment, there are still some disadvantages, such as inconvenient transportation, unsanitary, low utilization rate of chemical fertilizer. The granulator of organic fertilizer solves the problem of using agricultural waste and improves the efficiency of agricultural production.
With the development of economy, the suitable raw materials of organic fertilizer are gradually expanded, and the demand for granular organic fertilizer equipment is increasing. We provide organic fertilizer granulator, pan fertilizer granulator and flat model granulator to solve different fertilizer granulation problems.