Introduction of compound fertilizer production line
It is of great significance for users to know the process of making compound fertilizer. invest and fully understand compound fertilizer production. The following are the main process of compound fertilizer production.
1.Ingredients of raw materials: Generally, urea, ammonium nitrate, ammonium chloride, ammonium sulfate, ammonium phosphate (monoammonium phosphate, diammonium phosphate, heavy calcium, ordinary calcium), potassium chloride (potassium sulfate) and other raw materials can be selected according to certain requirements.
2.Mixing: The prepared raw materials are mixed evenly by horizontal mixer.
3.Crushing: The large agglomerates of the mixed and stirred raw materials are crushed to facilitate subsequent process of granulation. The chain crusher are often used.
4.Granulation: The uniformly stirred and crushed materials are transported through the belt to the granulator for granulation. The rotary drum granulator, double roller extrusion granulator and disc granulator can be used. This step is indispensable in the process of compound fertilizer production.
5.First screening: The first screening is to select unqualified semi-finished products. The unqualified particles are returned to the mixing link for reprocessing. Generally, it needs a rotary drum screening machine.
6.Granule drying: The moisture contained in the granules is dried by rotary drum dryer to increase the strength of the granules.
7.Granule cooling: The temperature of the dried fertilizer granules is high. That’s easy to agglomerate. After cooling, it is convenient for bagging, storage and transportation. And it is cooled by a cooler.
8.Secondary screening: The cooled particles are classified. And the unqualified particles are crushed and re-granulated. Qualified products are sieved out.
9.Finished granule coating: Coating is to increase the brightness and roundness of the granules and make the appearance more beautiful. Generally, coating machine is used to wrap the granules.
10.Quantitative packaging: The finished pellets are sent to the packing machine through a belt conveyor.
The above are the complete process of compound fertilizer production and the supporting equipment of the compound fertilizer production line. Welcome to contact us for more information.