With an annual output of 20,000 tons, the scale is large enough to consider a granular fertilizer production line. Granular fertilizer production line contains 2 important processes, fermentation and granulation.
1, Fermentation process.Mix chicken manure, straw, mushroom residue and other materials together, add fermentation bacterium, under the action of fermentation bacterium, the pile will generally warm up in about 2 days, then you can use tossing equipment to turn the pile to increase the oxygen content of the pile and increase the moisture. If the local environmental protection is strict, you can use horizontal fermentation tank for fermentation, horizontal fermentation tank fermentation process is fully sealed, and contains deodorization device, will not cause environmental pollution.
2, Pelleting process.After the material has been fully fermented and matured, it enters the granulation process. The finer the material, the better the shape of the granules produced, so we must first use the vertical crusher for crushing, and then use the drum sifter sieving, the size of the unqualified materials again into the crushing process, qualified materials into the granulator. Annual output of 20,000 tons of granular fertilizer, round granules recommended to use disc granulator, stirring teeth granulator, etc., cylindrical granules recommended to use flat die granulator, roller extrusion granulator. After the granulation is completed, the sieving machine is used again for sieving, and the unqualified granular materials enter the crushing-granulating process again, and the qualified granules enter the packing machine.