The coarse powder or irregular small pieces of organic fertilizer after biological fermentation are characterized by high moisture (30%~40%), looseness (density 0.3~0.4t/m³), and more fiber. The coarse powder obtained by biological fermentation or not Regular small pieces of organic fertilizers made into spherical granular organic fertilizers are the key to solving large-scale popularization of organic fertilizers. Today, I will explain to you how to compress the organic fertilizer production process:
1. Some manufacturers use traditional disc or bulge granulation, which requires dry coarse powder or irregular small pieces of organic fertilizer (moisture content is 15%). Grind it into a very fine (over 100 mesh) powder, and then add a binder And inorganic fertilizers, binders and inorganic fertilizers should not exceed 30% in organic fertilizers.
2. There are also some manufacturers who first dry coarse powder or irregular small pieces of organic fertilizer until the water content is only 20-25%, and then choose a flat die extrusion granulator or a double-roll extrusion granulator suitable for npk production line to dry The dried organic fertilizer is extruded into cylindrical or oblate spherical particles. Although this behavior is convenient to use, the circulation is still not very good;
3. There are also some manufacturers who choose a flat die extrusion granulator to extrude coarse powder or irregular small pieces of organic fertilizer into short column particles (because of high moisture content and high fiber content, column particles also have certain plasticity), and then polish to produce Spherical granules, and then the spherical granules are dried, cooled and screened to obtain qualified granules. The raw materials do not need to be processed, the water sequence is reduced step by step, and the production cost is greatly reduced. Bonding equipment, small output. High power consumption during extrusion.
Therefore, in summary, the organic fertilizer industry urgently needs to introduce large-capacity, energy-saving compression granulation equipment to overcome the traditional extrusion granulator's easy arching, easy blocking, easy bonding equipment, small output, and electricity during the extrusion process. The shortcomings of high consumption, in order to improve the efficiency of organic fertilizer production line and npk fertilizer production line, and promote the development of organic fertilizer industry.
