Organic fertilizer production and bio fertilizer production technology
The production line of organic fertilizer granulating machine and bio fertilizer is designed for the production of bio fertilizer granulating machine. The low price of organic fertilizer and bio organic fertilizer is due to their wide variety of raw materials.

How to use fertilizer manufacturing technology to produce bio fertilizer granulating machine in the complete bio fertilizer production line?
In the process of fertilizer production, different types of fertilizer equipment are equipped to complete the production process. The details are as follows:

Step 1: fermentation

a。 Add fermentation bacteria: 60% of livestock manure, 20% of food bacterial residue, 10% of materials with low water content such as straw (reduce water content to 40%, which is the most suitable water for fermentation), and 1% of bacterial fermenter.

The purpose of adding fungicide is to increase the temperature rising speed and control the fermentation temperature at 65 ℃ ~ 70 ℃. The peculiar smell and bactericidal effect in the fermentation process were eliminated, and the fermentation speed was accelerated, so that the fermentation time was shortened to about 15-20 days;

During fermentation, it should be noted that throwing should be carried out every 2-3 days. If the workload is too large, fermentation throwing machine can be used. The aim is to increase oxygen content, compost needs to be turned over continuously; at the same time, it can make the combination of fermentation bacteria and materials more uniform, increase maturity, and accelerate fermentation maturity.

Production of bio fertilizer

b。 Mashed potatoes after fermentation and ripening:
Because some stem rods are too large to fertilize, it is necessary to crush these materials by semi wet material crusher to prepare the next granulation (the smaller the crushed material, the easier it is to produce grains). The materials of crushing and mixing are powder, which is not conducive to mechanical fertilization.

Step 2: Granulation

If it’s an organic fertilizer manufacturer, it needs to be pelletized and sold. The price of granular organic fertilizer produced in the organic fertilizer production line is much higher than that of the ordinary fermented agricultural fertilizer. That’s why organic fertilizer is a few dollars less expensive and the profit is even more substantial.

a。 Mixing: in the production line of bio fertilizer, add proper amount of urea (and NPK) into the crushed products after fermentation, and stir evenly with horizontal mixer. The state of organic fertilizer has a significant regulatory effect because of the content of NPK.

Although the nutrients of fermented organic fertilizer are rich, NPK content still does not meet the national organic fertilizer content standard. It is necessary to add NPK to the granulation process, smash it into uniform particle size and turn them into powder, which is beneficial to granulation and fertilization.

Granulation: different granulation methods are selected according to water content and production capacity. When the output is large and the water content is high (low cost), the material is dried and cooled evenly by disc granulator to form stirring. Disc granulator is a kind of equipment used in organic fertilizer production line to produce organic fertilizer.

When the production is small and the water content is low (high cost), the mixing granulator no longer needs drying and cooling, and the granulation rate is relatively high, which can reach more than 90%, and the hardness is good and it is not easy to disperse.

c。 Screening: introduce granular materials into the sieve separator, screen and put 3mm materials directly into the packaging link. They can be sold as commodities: Materials less than 3mm that do not meet the standards shall continue until the diameter reaches the standard; return particles larger than 3mm to grinding stage and then make grains.

Compared with traditional composting, organic fertilizer has more development and mature process, and deodorant is added. Therefore, in the process of bio fertilizer production, there is no peculiar smell, and the mature organic fertilizer will not produce secondary maturity in sowing.

At the same time, because of the rich nutrients, the soil structure can be improved and soil hardening avoided; in the seedling combustion; meanwhile, due to the rich nutrient elements, the soil structure can be improved and bacteria can be added to the fermentation process. In the process of decomposition, the nutrients which are not easily decomposed in soil are transformed into the form which is beneficial to plant absorption and improve soil quality.

The production process of compound fertilizer and NPK fertilizer is inseparable from the drum granulator. In the last article, we mentioned the use of drum granulation compound fertilizer equipment. Let’s review the working principle of drum granulator.

Drum granulation equipment is mainly composed of drum, front support wheel, rear support wheel, big gear, reducer, motor, etc. The inner part is composed of granulation area, feed area, steam nozzle and annular ring. When working, powdery raw materials and returned raw materials are added from the feeding port, and the rotating roller rotates upward with the animal material layer.

When it reaches a certain height, the material will fall along the arc track under the action of gravity and inertial force. Steam or water is injected into the cylinder and then sprayed on the rolling material layer to condense the material into particles. There are many problems in the use of drum granulation compound fertilizer production line. For example, the lining of the drum granulation equipment needs frequent maintenance at high temperature, and there is material agglomeration on the inner wall of the granulation equipment in the drum granulation equipment. How to solve these problems? Let’s take a look at today’s focus, drum granulation compound fertilizer production equipment transformation.

The purpose of technical transformation of drum granulator fertilizer production equipment is to provide a granulator with non sticky inner wall and elastic adjustment of the position of the retaining ring, so as to achieve balanced and stable load, so as to produce high-quality compound fertilizer and adapt to the changes of high, medium and low concentration compound fertilizer types.

After years of research and test, Zhengzhou SX compound fertilizer equipment manufacturer found that chloroprene rubber was used as lining of pelletizing equipment. During operation, when the material reaches the lowest point through the cylinder, the weight of the material will be the difference between the rubber film and the cylinder wall. The indoor air is discharged from the granulation tube with breathing hole, which is the largest contact area between materials. When the material moves to a certain height with the roller, the material will fall and roll under the action of gravity and pressure, and the material will hardly adhere to the film. This fundamentally solves the problem that the material adheres to the inner wall and scabs, and the particle size of the material is uniform and beautiful.

Flat die extrusion granulator for dry fertilizer granulation

Flat die extrusion granulator is a new technology product developed by our factory on the basis of many years of experience in the design and production of organic fertilizer processing equipment. Used for granulation of various organic fertilizers after fermentation, breaking through the traditional organic granulation process. There is no need to dry and crush the raw materials before granulation. (dry granulation technology) Cylindrical particles can be directly processed in batches to save a lot of energy.

Raw materials for dry granulation by flat die granulator

The main raw materials of flat mold organic fertilizer granulator are manure (chicken, duck, pig, cattle, sheep manure, etc.), straw (wheat, rice, corn, etc.), raw materials are crushed and fermented, and then added with other nutrients for granulation.

What to do before granulation?

Raw material fermentation before production of flat mold granulator:
Before granulation of organic fertilizer, flat mold granulator must be fermented and decomposed. After mixed with grass manure, fermentation was carried out to complete harmless treatment, fully contact with oxygen, increase temperature, deodorize and decompose, and use microorganisms to improve fertilizer nutrients. Straw and manure materials usually last about 15 days and fermentation is completed. After fermentation, the sieve is used to remove impurities.

Fertilizer granulation process

The granulation process of flat mold organic fertilizer granulator is as follows
The sieved raw materials are evenly fed into the flat mold granulator, and the cylindrical particles are extruded under the extrusion of the mold. After extrusion granulation, the organic fertilizer particles have medium hardness and neat shape. The particles enter the circular throwing machine and rotate with the inner wall of the circular throwing machine. The shape is smooth and the size is uniform, which is convenient for application. Flat mold granulator in the process of processing temperature is lower, can better maintain the nutrients in raw materials. After the particles are formed, the drying and cooling steps can be omitted, and the finishing can be continued. After drying, cooling and SIE, the finished product will be stored.

It is easy to operate and low energy consumption. The dry organic fertilizer granulation production line integrates fermentation and processing, with mature technology and high production value of commercial organic fertilizer. Organic fertilizer products not only provide comprehensive nutrition for crops, but also have long-term fertilizer efficiency, which can increase soil organic matter and promote microbial reproduction.