Before granulation, it is necessary to ensure that the organic fertilizer raw materials are fully fermented and decomposed, which is beneficial for the production granulation of disc granulators and drum granulators. The fully fermented and decomposed material tends to have a darker color than before fermentation, usually presenting a brown color without any pungent odor. Instead, it has a fermented or muddy smell. The material is also relatively loose, and the block shaped fertilizer will break into small pieces or even powder when thrown on the ground. This type of organic fertilizer raw material is very effective for processing organic fertilizer particles.
The organic fertilizer raw materials processed by the trough type turning machine are in a mixed state of blocks and powders. These materials can be first crushed and then separated into finer powders through a screening machine as the main raw material for organic fertilizer. The reason for screening is to ensure that there are no stones or iron blocks in the material, which will not cause damage to subsequent production and equipment operation, and also ensure product quality, making the particles look smoother.
When producing organic fertilizers, it is necessary to add some auxiliary materials according to the formula requirements, usually fertilizers containing specific elements. This process is completed by an automatic batching system, which first measures the weight in the weighing bin, and then aggregates and transports it to the disc granulator for granulation. We can add a rotary drum granulation equipment after the disc granulation, which can play a role in secondary granulation and polishing, thereby increasing the ball formation rate, increasing production, reducing material return, and improving the operating efficiency of the entire fertilizer production line.
The production of organic fertilizer granules relies on water as a medium to bond various raw materials together. After granulation, the moisture needs to be dried out by a heat source, and then the temperature of the granules is lowered to room temperature by a cooling device, which is beneficial for subsequent packaging and storage. We can also configure a coating system, such as using a powder coating machine to powder particles, using coating agents to coat particles, and so on. After these steps, even the real finished organic fertilizer can be sent to the finished product warehouse for packaging and storage.