The production equipment of biological fertilizer project mainly includes fermentation part and granulation part. Even if organic fertilizer raw materials are well fermented, granulation is difficult, because organic raw materials are characterized by rough raw materials, light weight and low binding rate.
The bio organic fertilizer production line includes main equipment:
1. New type organic fertilizer granulator: designed and manufactured by the new process of wet continuous granulation. The machine can not only granulate a variety of organic materials, especially coarse fiber materials that are difficult to granulate by conventional equipment.
2. Tipping machine: used for tipping and composting to improve fermentation speed and quality.
4. Conveyor: it is suitable for conveying loose materials or box items in coal, metallurgy, mining, chemical industry, building materials, wharf, warehouse and construction site, especially in chemical fertilizer plant, cement plant and other environments.
5. Packaging scale: the packaging scale is mainly composed of automatic quantitative packaging scale (composed of storage hopper, feeder, weighing bag hopper, pressing mechanism, computer control, pneumatic actuator, etc.) and optional items (conveyor, sewing machine, etc.)/ Heat sealing machine).
There are several key factors to pay attention to in the selection of equipment: fermentation mode, organic raw materials, degree of mechanization and annual output. The quality of organic fertilizer depends on the fermentation site and the formula of the product.
The key factors of fermentation are: microorganism, carbon nitrogen ratio, carbon phosphorus ratio, water, pH value and aeration control. If a factor is not well controlled, it will cause incomplete fermentation, incomplete fermentation or too long fermentation time.
The formula of organic-inorganic compound fertilizer is the same as that of inorganic fertilizer. It also depends on different soils and different crop formulations. If the fermentation is properly prepared, the effect is better than inorganic fertilizer and the cost is low. As a green fertilizer, it can also improve the environment of plant survival and soil granulation.
The technical content of biological fertilizer project is high. In addition to the biological agents that promote the maturation and decomposition of organic matter in the maturation process, in order to achieve targeted maturation and deodorization, microbial products with specific functions need to be added to enhance the effect of the products.
At present, bio organic fertilizer is included in the category of microbial fertilizer in China, and more strict management measures are implemented than organic fertilizer to promote the healthy development of organic fertilizer.
1. The production process of bio organic fertilizer production enterprises registered with the Ministry of agriculture is basically engaged in the production of microbial fertilizer. In the process of fermentation production, tank stacked fermentation is mostly used, and there are other fermentation methods, such as flat stacked fermentation and fermentor fermentation.
In the process of fermentation and maturation, the adjustment of material moisture, carbon nitrogen ratio and temperature and the use of curing agent are the production process. The key is that the application of fungicide directly affects the fermentation cycle and the maturity of materials. The ripening material basically achieves the harmlessness of the product and is also conducive to the survival of the functional bacteria added in the post-treatment process.
2. In terms of post-treatment of fermentation materials, most enterprises add functional bacteria for compound molding. The dosage form of the product is mainly powder, and some are granulated by rotary drum fertilizer granulator or roller granulator. Granular products prevail over powdered products. The disadvantages of poor appearance and low grade not only improve the commerciality of the product, but also increase the production cost of the enterprise, which has a certain impact on the survival of effective bacteria.
3. The utilization of strains and microbial strains is the core of bio organic fertilizer products. In the production process, there are generally two links related to the utilization of microorganisms:
First, add decomposition bactericide to promote material decomposition and decompose and deodorize in the decomposition process. It is mainly composed of complex strains.
Common strains include photosynthetic bacteria, lactic acid bacteria, yeasts, actinomycetes, Penicillium, wood fungi, etc; Second, the functional bacteria added after material decomposition, generally nitrogen fixing bacteria, phosphorus solubilizing bacteria, silicate bacteria, lactic acid bacteria, Pseudomonas, actinomycetes, etc., play a specific role as fertilizer in the product.
Therefore, the selection and use of microbial strains for the production of bio organic fertilizer is a core technology. Only by mastering this key technology can we accelerate the decomposition and maturity of materials, Ensure the application effect of the product.
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.
Biological fertilizer, namely microbial fertilizer, referred to as bacterial fertilizer, also known as microbial inoculant. It is a special microbial product, which contains a lot of beneficial microorganisms, which can fix nitrogen in the air and activate nutrients in the soil.
In the soil, improve the nutritional environment of plants, or produce active sunlight in the life activities of microorganisms and stimulate the growth of plants. In the production of bio organic fertilizer, bio fertilizer is as important as chemical fertilizer and organic fertilizer.
In fertilizer production line for bio fertilizer, this series of fertilizer machine can use simple composting machine to ferment raw materials, and the fermentation machine will be equipped with fermentation composting machine.
Then, fertilizer crusher, fertilizer mixer and fertilizer crusher will be equipped to deal with the raw materials. We can use chain crusher and horizontal mixer to deal with organic raw materials. Next, in the production of organic fertilizer granulator, it must be equipped with fertilizer granulator in the bio fertilizer production process.
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.
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.