Flat Die Fertilizer Granulation Technology in Organic Fertilizer Production

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.