Due to the production of biological fertilizer, organic matter is the main, cellulose, forming conditions are poor, and the addition of fertilizer function of live bacteria, the production process is not suitable for contact with high temperature. The material making method should not use the disc organic fertilizer granulator and drum organic fertilizer granulator method, because these two kinds of technology, the raw material grinding fineness is high, granulation water is high, the general water content should reach about 30%, so the drying load is large, the effective bacteria loss is also large, and the pelleting rate is low, (60% ~ 70%), the production process is very large dust, The operating environment is very poor, so for the production of organic biological fertilizer, it should be better to produce by environmental extrusion method. Environmental extrusion has low requirements for raw material crushing, high molding rate (more than 95%), low water content of particles after opening, small drying load, which can reduce the loss of effective bacteria, small dust and good operating environment.
Raw materials into the organic fertilizer granulator, add appropriate amount of water or steam, bond into granulation, granulation material through the belt machine into the dryer for drying. The particle diameter is 3.0-4.0mm, and the granulation rate is greater than 70%.
Note: Different raw materials are not suitable for the same granulation process. For example, the water content of pig manure is much higher than that of sheep manure, which directly affects the final granulation result. Which process and organic fertilizer equipment are more appropriate for specific production needs to be consulted in detail in the planning of organic fertilizer plant construction.
