Main process of disc granulation bio organic fertilizer manufacturing process
Taking the disc granulator as the core granulation equipment, the organic waste is processed into organic fertilizer. The following is the whole fertilizer manufacturing process.
1. Send the treated sludge (organic waste, industrial sludge, etc.) and proper amount of qualified raw materials such as nitrogen, phosphorus and potassium into the raw material mixer according to the proportion and mix them evenly.
2. It is transported to the feeder, and the evenly mixed material is added to the rotating disc of the disc granulator through the continuous rotation of the disc.
3. Sprinkle the treated microbial strains on the materials in the disc through the liquid component distributor of the disc granulator, so that each particle is coated with microbial strains from the inside to the outside. The rotating disc and its edge produce friction and centrifugal effect on the material, which makes the material move in a circumferential direction, and the powder particles rub and squeeze each other, and gradually agglomerate into a ball. Due to the difference of particle mass, the gravity and centrifugal effect are different. When the gravity and centrifugal force increase enough to overcome the friction between particles, they will be thrown out of the disk, and the smaller particles will still stay in the disk and continue to gather fine particles.
4. The organic fertilizer particles are transported to the biological bacterial fertilizer drum dryer, and the large air volume produced by the fan and the low temperature treated by the induced draft device are used to complete the preliminary drying of the fertilizer. Due to strains, the drying temperature is strictly controlled below the temperature at which strains survive.
5. Qualified particles are transported to the organic fertilizer cooler, and the fertilizer is cooled by natural or strong cooling air
6. The material is transported to the finished product rotary screener machine, and the fine particles are directly returned to the feeder, as the core to participate in the adhesion of the particles into balls. The large particles are crushed by the pulverizer and returned to the disc homogenizer to continue to participate in ball formation.
7. The microbial bacteria will be lost on the surface of the particles of the biological fertilizer that comes out of the dryer, and the microbial species on the surface of the particles will be supplemented by spraying on the coating machine.