compound fertilizer production line usually consists of mixer, semi-humid crusher, chain crusher, belt conveyor, roatary screen, granulator, rotary dryer, rotary cooler, coating machine, and packing machine, the raw material can be vaious kinds of animal dung, such as pig dung, sheep dung, chicken dung, and so on. for the mixer, there are mainly two types, one is horizonal mixer, the other is vertical mixer; and the granulator mainly includes round pan granulator, rotary drum granulator, and roll press granulator, here we simplely introduce the generally production process:
1.First the raw material is mixed some algriculture waste, such as straw, corn cob, etc. which are kept for some days for further raw material preparation
2.then the materials are crushed by the crusher
3.the crushed mateiral is fed to the granulator for pellet making
4.the pellets are dryed in the rotary drum dryer
5.rotary drum cooler is used to cool the pellet
6.rotary screen separate the pellet into ideal size, the unsuitable size is transported to the crusher for recycling
7.the suitable size pellets are coated in the coating machine
8.the coated products are packed with the packing machine, then the bags are transported to the warehouse.
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