How make organi fertilizer granules with drum granulation equipment

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)).

Rotary Drum Pellet Compost Production Equipment
Rotary Drum Pellet Compost Production Equipment

2. Then use fertilizer mixer to mix the dispersed raw materials evenly and crush them to a certain fineness. Next is the main necessary step – granulation, here you need a drum granulator.

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.

Why choose?

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.

Technical Parameters

Model Barrel Power Prod Capacity Overall dimensions L× W ×H weight
Inclination Internal diameter length Rotation speed
0 m m r/min kw t/h m t
ZG1.2×4 2-2.5 1.2 4 17 5.5 1-3 4.6×2.2×2.0 2.7
ZG1.4×5 2-2.5 1.4 5 14 7.5 3-5 4.8×2.8×2.3 8.5
ZG1.6×6 2-2.5 1.6 6 11.5 11 5-8 7.0×3.2×3.1 12.0
ZG1.8×7 2-2.5 1.8 7 11.5 15 8-10 8.3×3.5×3.3 18.5
ZG2.0×8 2-2.5 2.0 8 11 18.5 10-15 9.1×3.6×3.5 22.0
ZG2.2×8 2-2.5 2.2 8 10.5 22 15-20 9.5×4.4×3.9 28.0

 

Drum Granulator in Wet Orgnaic Fertilizer Production

Drum granulator is a kind of granulator for fertilizer, which can make materials into specific shapes. Drum granulator is one of the key equipments in compound fertilizer industry. It is suitable for cold and hot granulation and large-scale production of high, medium and low concentration compound fertilizer. The main working method is wet granulation of agglomerates.

Drum Granulation Machine
Drum Granulation Machine

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.

Drum Granulation Equipmet Inner Structure
Drum Granulation Equipmet Inner Structure

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.

20t per hour drum granulation plant layout
20t per hour drum granulation plant layout

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.

More types of machine designs, go to https://fertilizerplantdesigner.com/

How to make npk by dry granulation method?

NPK Dry Granulation Technology

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.

Dry Granulators for npk fertilizer production

This operation is done using a roller granulator and can be configured in different configurations and equipment designs. We also provide NPK fertilizer granulator equipment.

NPK dry granulation machine working performance

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.

How to make granules fertilizer with pan granulation machine?

Organic-inorganic compound fertilizer is a compound fertilizer that integrates organic matter and inorganic fertilizer. Organic-inorganic compound fertilizer has various components, which can not only provide crop nutrients, but also improve soil biological activity and soil fertility, so it is widely used in cash crops.

Organic matter is an important component in organic-inorganic compound fertilizer, and its content directly determines the actual effect of bio-organic compound fertilizer. Therefore, the granulation process of organic-inorganic compound fertilizer production line is particularly important. The organic fertilizer disc granulation production line can realize the complete treatment of organic-inorganic compound fertilizer.

For the pan granulator, the addition of organic matter is also the key to granulation. Want to know how does the granulator make fertilizer granules by wet granulation method, welcome to https://www.fertilizermachinesale.com/pan-granulation-process/

Disc Pelletizer for Small Scale Cow Farm Manure Granualtion
According to the actual situation, several kinds of materials with abundant raw materials, low price and convenient processing can be selected as the raw materials of the pan granulator.

Organic fertilizer: chicken manure, pig manure, peat, plant ash, etc.
Inorganic fertilizers: urea, ammonium sulfate, superphosphate, calcium magnesium phosphate, potassium sulfate, potassium chloride, etc.

Organic compound fertilizer disc granulator

Organic fertilizer has strong water absorption and looseness, and its water content, fineness and other factors have a greater impact on granulation. Therefore, organic matter plays an important role in the production of disc granulators. On the premise of keeping the compound fertilizer and other inorganic nutrients unchanged, increasing the input of organic matter is an important way to improve the quality of biological compound fertilizer.

However, organic matter has strong dispersibility and has a greater impact on granulation. The organic content is too high, which is not conducive to the production of the pan granulator.

Experiments show that in the production line of organic fertilizer disc granulation, the amount of organic matter is about 25%-35%, and a better granulation effect can be obtained. The process of organic fertilizer disc granulation production line is suitable for the production of granular organic-inorganic compound fertilizer.

Plants for Biofertilizer Production

There are many kinds of organic fertilizer, and bio organic fertilizer is the leader. Biological fertilizer is a kind of fertilizer which combines microbial fertilizer and organic fertilizer.

Bio organic fertilizer products not only contain high organic matter, but also contain microorganisms with specific functions. The microorganisms contained in bio organic fertilizer products should have certain fertilizer functions, such as improving soil fertility, producing and assisting crops to absorb nutrients, activating insoluble compounds in soil for absorption and utilization of crops, or producing various active substances, disease resistant and disease resistant substances.

Biological planting can stimulate and regulate crop growth, reduce or reduce the occurrence of plant diseases and insect pests, and improve the quality of agricultural products.


Biological fertilizer plant mainly includes fertilizer granulator, crusher, mixer, drum machine, etc. Compared with common organic fertilizer, biological fertilizer production technology content is higher.

In addition to adding microbial agents to promote the maturity and decomposition of organic materials in the decomposition process, so as to achieve the purpose of directional decomposition and deodorization, microorganisms with specific functions need to be added in the production of microorganisms to improve the effect of products.

Fertilizer manufacturers will remind you that biological fertilizer is different from ordinary organic fertilizer in the production process. In the biological fertilizer plant, there is no difference from the ordinary organic fertilizer production equipment. The only difference is how to protect functional bacteria, improve the survival rate of bacteria in the production process, so as to maximize the efficiency of fertilizer.

Biological fertilizer plant

The following five points should be paid attention to when processing biological fertilizer production plant

(1) When processing and producing fertilizer, the drying temperature should not exceed 80 ° C, otherwise the number of active bacteria in biological fertilizer will be affected.
(2) When storing and transporting biological fattening, it is necessary to avoid damp or rain;
(3) In the process of biological fattening, direct sunlight should be avoided.
(4) The physical, chemical and biological factors of soil must be taken into account when using biological fertilizer.
(5) Biological fertilizer cannot be used together with pesticide and physiological acid fertilizer.

How to make pellet organic fertilizer products?

The invention relates to the field of fertilizer preparation, in particular to a granular organic fertilizer and a preparation method thereof.

Background technology:

In recent years, the input of chemical fertilizer has increased greatly. Due to the single nutrient type, long-term application of chemical fertilizer can easily lead to unbalanced nutrients in soil and food, resulting in nutrient loss, pollution of the environment, and improper application will reduce the quality of agricultural products. Long-term large-scale application of chemical fertilizers will inhibit the activities of soil microorganisms, resulting in a decline in the ability of soil self-regulation. Therefore, although chemical fertilizers contain high single nutrients and use less, long-term application of chemical fertilizers is not advisable under the increasing attention to the needs of the living environment. Therefore, the development of organic fertilizers is of great importance. Significance.

Farm wastes – Ideal materials

Farmyard manure is the accumulation of pig manure, pig, cattle, sheep and other excrement and human excrement, and the organic fertilizer is accumulated. The source of farm manure is wider and its cost is lower. The nutrient content of farm manure is more comprehensive, its fertilizer efficiency is stable and lasting. In addition to nitrogen, phosphorus and potassium, farm manure also contains calcium, magnesium, sulfur, iron and various trace elements, as well as some substances that can stimulate root growth and all kinds of beneficial soil microorganisms. Agricultural fertilizer can improve soil structure, which is rich in humic acid. It can promote the formation of soil aggregate structure, make the soil soft, improve the water and air conditions in the soil, which is conducive to the growth of root system. It can increase soil fertility and water retention performance, improve soil temperature, and promote beneficial microorganisms in the soil. The activity and reproduction of animals; the fertilizer efficiency of farm manure is long.

Hiddien weaknesses

However, most of the nutrients in unfermented and decomposed farm manure are organic or slow-acting, which can not be directly absorbed and utilized by crops. Only when they are decomposed into quick-acting state can they be absorbed and utilized by crops. Therefore, direct application of unfermented farm manure will slow down the efficiency of farm manure. Moreover, the organic fertilizer obtained by direct fermentation has higher moisture content and is not easy to preserve.

Technological implementation elements:

Based on the technical problems existing in the background technology, the invention provides a granular organic fertilizer and a preparation method thereof.

The invention provides a granular organic fertilizer, whose raw materials include 25-30 portions of pig manure, 10-15 portions of chicken manure, 10-15 portions of cow manure, 10-15 portions of bagasse, 20-25 portions of corn straw, 7-13 portions of corncob, 10-15 portions of pond mud, 3-5 portions of beeswax and 1-3 portions of microbial fungicide.

Preferably, microbial agents include Lactobacillus fermentans, Bacillus subtilis and Candida prion-producing bacteria.

Optimally, the content of Lactobacillus fermentans, Bacillus subtilis and Candida prion-producing yeasts in microbial agents was 1 X108-3 X108 cfu/g, 3 X107-5 X107 cfu/g and 1 X107-3 X107 cfu/g respectively.

Preferably, the pond mud is the bottom sludge of lotus root culture pond, and the water content is controlled at 40-50%.

The invention provides a preparation method of the granular organic fertilizer, which comprises the following steps:

S1. According to the proportion of raw materials, microbial agents were divided into two groups: group A microbial agents and group B microbial agents.

S2. Corn stalk powder and corncob powder were obtained by crushing corn stalk and corncob separately. Corn stalk powder was divided into two groups, namely group C corn stalk powder and group D corn stalk powder.

S3. Mix all corncob meal and C group cornstalk meal from pig manure, chicken manure, cow manure, bagasse and S2 evenly, then add A group microbial agent, mix evenly, and get fermentation substrate.

4. Put the fermentation substrates from S3 into the fermentation tank for the first stage of fermentation, add group B microbial agents, mix evenly, and ferment in the second stage to obtain the fermentation products.

S5. Mix the fermentation product from S4 with group D corn straw powder and pond mud evenly, raise the temperature to 60-70 C by heating, add melted beeswax, mix evenly, granulate and dry to get granular organic fertilizer.

Preferably, the weight ratio of group A microbial agent and group B microbial agent is 3-4:1.

Optimally, the particle sizes of corn straw powder and corncob powder in S2 were 10-20 meshes.

Optimally, the weight ratio of group C corn straw powder to group D corn straw powder was 0.5-0.8:1.

Optimally, the temperature of the first stage fermentation in S4 is 36-40 C and the time is 2-4 days.

Optimally, the temperature of the second stage fermentation in S4 is 32-36 C and the time is 8-12 days.

Preferably, the drying temperature in S5 is 50-70 C, and the moisture content is less than 2%.

Optimally, the particle size of granular organic fertilizer in S5 is 3-5 mm.

The granular organic fertilizer provided by the invention is fermented by pig manure, chicken manure, cow manure, bagasse, wheat straw and corncob, and is made into granular form by adding pond mud and beeswax, which has strong fertility and durable fertility, and can effectively improve soil, alleviate soil hardening and improve soil structure; after being used as base fertilizer before sowing, it can be applied to Zhuang village. Crops play an important role in strengthening seedlings and increasing yields.

By adding microbial agents, controlling the species, quantity, fermentation temperature and time of microbial strains, the fermentation substrates such as pig manure, cow manure and chicken manure can be fully fermented, and the macromolecular organic substances can be converted into small molecular substances that can be absorbed by plants with strong fertility. Fermentation products were mixed with pond mud, wheat straw powder and beeswax to form granular fertilizer, which was convenient for preservation and application. Pond mud is rich in nutrients and microorganisms, and it is a high-quality fertilizer. Beeswax plays a binding role. The prepared feed particles are compact and not easy to loosen. Beeswax is a natural substance secreted by bees, which can be decomposed in nature. Compared with chemical binders, beeswax is more green and environmentally friendly.

The raw materials of the invention are all from natural waste resources, so there are no side effects on crops, effectively solving the problem of farming and fertilization, reducing farmer’s planting cost and improving farmer’s income.

Specific implementation methods

Next, the technical scheme of the invention is described in detail by means of specific embodiments.

Experiments Cases 1

The invention provides a granular organic fertilizer, whose raw materials include 28 pig manure, 13 chicken manure, 11 cow manure, 14 bagasse, 23 corn straw, 9 corncob, 12 pond mud, 3.3 beeswax and 2.7 microbial agents by weight.

Microbial agents include Lactobacillus fermentans, Bacillus subtilis and Candida utilis. The contents of Lactobacillus fermentans, Bacillus subtilis and Candida prion-producing yeast in microbial agents were 1.9 *108 cfu/g, 3.2 *107 cfu/g and 2.3 *107 cfu/g respectively.

The pond sludge is the bottom sludge of lotus root aquaculture pond with water content of 43%.

Experiments Cases 2

The invention provides a granular organic fertilizer, whose raw materials include: pig manure 27, chicken manure 12, cow manure 13, bagasse 12, corn straw 24, corn cob 11, pond mud 14, beeswax 4.8, microbial agent 2.1.

Microbial agents include Lactobacillus fermentans, Bacillus subtilis and Candida utilis. The contents of Lactobacillus fermentans, Bacillus subtilis and Candida prion-producing yeast in microbial agents were 1.4 *108 cfu/g, 4.2 *107 cfu/g and 2.8 *107 cfu/g respectively.

The pond mud is the bottom sludge of lotus root aquaculture pond with water content of 46%.

Experiments Cases 3

The invention provides a granular organic fertilizer, whose raw materials include 26 pieces of pig manure, 14 pieces of chicken manure, 12 pieces of cow manure, 12 pieces of bagasse, 21 pieces of corn straw, 10 pieces of corncob, 13 pieces of pond mud, 4.2 pieces of beeswax, and 1.4 pieces of microbial agent by weight.

Microbial agents include Lactobacillus fermentans, Bacillus subtilis and Candida utilis. The contents of Lactobacillus fermentans, Bacillus subtilis and Candida prion-producing yeast in microbial agents were 2.6 *108 cfu/g, 4.7 *107 cfu/g and 1.3 *107 cfu/g respectively.

The pond mud is the bottom sludge of lotus root culture pond with water content of 48%.

Experiments Cases 4

The invention provides a preparation method of granular organic fertilizer, which comprises the following steps:

S1. Various raw materials are weighed according to the first embodiment. Microbial agents are divided into two groups: group A microbial agents and group B microbial agents. The weight ratio of group A microbial agents and group B microbial agents is 3.4:1.

S2. Corn stalk and corncob were crushed to obtain 14-mesh corn stalk powder and 18-mesh corn cob powder respectively. Corn stalk powder was divided into two groups: group C corn stalk powder and group D corn stalk powder. The weight ratio of group C corn stalk powder and group D corn stalk powder was 0.7:1.

S3. Mix all corncob meal and C group cornstalk meal from pig manure, chicken manure, cow manure, bagasse and S2 evenly, then add A group microbial agent, mix evenly, and get fermentation substrate.

4. Put the fermentation substrate from S3 into the fermentation tank for the first stage fermentation. The temperature of the first stage fermentation is 39 C, and the fermentation time is 2.5 days. Add group B microbial agent, mix evenly and carry out the second stage fermentation. The temperature of the second stage fermentation is 34 C, and the fermentation time is 9 days. The fermentation product is obtained.

S5. Mix the fermentation product from S4 with group D corn straw powder and pond mud evenly, raise the temperature to 68 C by heating, add melted beeswax, mix evenly, and import it into the drum granulator for granulation. Dry at 55 C until the moisture content is 1.8%. The granular organic fertilizer with particle size of 4mm is obtained.

Experiments Cases 5

The invention provides a preparation method of granular organic fertilizer, which comprises the following steps:

S1. Various raw materials were weighed according to the second embodiment. Microbial agents were divided into two groups: group A microbial agents and group B microbial agents. The weight ratio of group A microbial agents and group B microbial agents was 3.2:1.

S2. Corn straw and corncob were crushed to obtain 18-objective corn straw powder and 12-objective corn cob powder respectively. Corn straw powder was divided into two groups: group C corn straw powder and group D corn straw powder. The weight ratio of group C corn straw powder and group D corn straw powder was 0.6:1.

S3. Mix all corncob meal and C group cornstalk meal from pig manure, chicken manure, cow manure, bagasse and S2 evenly, then add A group microbial agent, mix evenly, and get fermentation substrate.

4. Put the fermentation substrate from S 3 into the fermentation tank for the first stage fermentation. The temperature of the first stage fermentation is 37 C and the fermentation time is 3.5 days. Add group B microbial agent, mix evenly and carry out the second stage fermentation. The second stage fermentation temperature is 35 C and the fermentation time is 10 days. The fermentation product is obtained.

S5. Mix the fermentation product from S4 with group D corn straw powder and pond mud evenly, raise the temperature to 66 C by heating, add melted beeswax, mix evenly, and import it into the drum granulator for granulation. Dry at 65 C until the moisture content is 1.7%. The granular organic fertilizer with particle size of 3 mm is obtained.

Experiments Cases 6

The invention provides a preparation method of granular organic fertilizer, which comprises the following steps:

S1. Various raw materials are weighed according to the third embodiment. Microbial agents are divided into two groups: group A microbial agents and group B microbial agents. The weight ratio of group A microbial agents and group B microbial agents is 3.7:1.

S2. Corn straw and corncob were crushed separately to obtain 16-objective corn straw powder and 16-objective corn cob powder. Corn straw powder was divided into two groups: group C corn straw powder and group D corn straw powder. The weight ratio of group C corn straw powder and group D corn straw powder was 0.8:1.

S3. Mix all corncob meal and C group cornstalk meal from pig manure, chicken manure, cow manure, bagasse and S2 evenly, then add A group microbial agent, mix evenly, and get fermentation substrate.

4. Put the fermentation substrate from S 3 into the fermentation tank for the first stage fermentation. The temperature of the first stage fermentation is 38 for 3 days, add group B microbial agents, mix evenly, and carry out the second stage fermentation. The second stage fermentation temperature is 33 and fermentation lasts 11 days to obtain the fermentation products.

S5. Mix the fermentation product from S4 with group D corn straw powder and pond mud evenly, raise the temperature to 64 C by heating, add melted beeswax, mix evenly, and import it into the drum granulator for granulation. Dry at 63 C until the moisture content is 1.8%. The granular organic fertilizer with 5 mm particle size is obtained. As mentioned above, only the better specific embodiments of the present invention are provided, but the scope of protection of the present invention is not limited thereto. Within the scope of the disclosed technology of the present invention, the protection of the present invention shall be covered by any technician familiar with the technical field who equally replaces or changes the technical scheme according to the present invention and its inventive conception. It is within the scope of protection.