The working process of the fertilizer production line without dry double roller granulator
: the mixer first mixes a variety of raw materials according to the proportion, and then uses the belt conveyor to transport them to the disc feeder after the materials are evenly stirred. The disc feeder evenly delivers the materials to the double roller granulator for pelletizing through the mixing movement, and after granulation, the belt conveyor transports the finished products to the roller screen for screening, The finished product is directly packed in the bin, and the screened powder is transported back to the feeder through the return belt conveyor for granulation.
Characteristics of the fertilizer production line of the non drying double roller granulator
1. The raw material applicability of the double roller granulator and its wide range: it is suitable for the direct granulation of the fermented livestock and poultry excrement, sugar factory filter mud, urban sludge, paper-making sludge, distiller's grains, straw, peat and other coarse fiber organic wastes with about 30% moisture content, which can produce the pure organic fertilizer, organic-inorganic fertilizer and bio organic fertilizer with ball shaped particles.
2. The ball forming rate and the survival rate of biological bacteria of the double roller granulator are high: the new technology can make the ball forming rate reach more than 90-95%, and the new technology of low temperature and large air volume drying can make the survival rate of biological bacteria reach more than 90%.
3. The process flow is short, the operation cost is low, the organic raw materials used in the fertilizer production line
do not need to be dried, crushed and other pre-treatment, the process flow is short, and the operation cost is low (if the traditional granulation process such as disc or drum is used, the organic raw materials with moisture content of about 40% after fermentation need to be dried to less than 13%, crushed to more than 80 mesh, and the addition amount of organic materials cannot be more than 30%).