Industry Info

How to Produce Organic-inorganic Compound Fertilizer by Extrusion Granulation Process

2019/07/04
Organic-inorganic compound fertilizer is a new generation of highly efficient total nutrient fertilizer, which combines organic matter with chemical fertilizer. It has the characteristics of complete nutrient, high fertilizer efficiency, pollution-free and easy to use. Organic-inorganic compound fertilizer can stimulate the rapid growth of crops, effectively inhibit pests and diseases, enhance crop stress resistance, and achieve the goal of improving crop yield and quality.
 
The extrusion granulation process can combine the constant elements N, P, K and organic matter. The fertilizer product of the flat die granulator fertilizer production line has the advantages of organic fertilizer and inorganic fertilizer, and overcomes the shortcomings of single organic or inorganic fertilizer.
 
 
Extrusion Granulation Technology of Organic-inorganic Compound Fertilizer
Organic raw materials: decomposed poultry manure, peat, cake fertilizer, etc.
Inorganic raw materials: potassium sulfate, potassium chloride, urea, ammonium sulfate, ammonium chloride, monoammonium phosphate, calcium superphosphate, calcium magnesium phosphate fertilizer, etc.
Auxiliary raw materials: corn straw, rice straw, rice bran, etc.

Extrusion Granulation Technology 
Extrusion granulator is the key equipment for the production of organic-inorganic compound fertilizer by extrusion granulation process. The common extrusion granulator is flat die granulator and ring die granulator. Taking the flat die granulator fertilizer production line as an example, the processing principle of the flat die granulator is that the raw material is squeezed into the die hole after mixing uniformly, and the raw material is pressed into a cylinder by huge pressure, and is extruded from the bottom of the die hole, and cut into the required length by the cutter installed under the flat-die. The principle of ring die granulator is similar. Both fertilizer granulator adopt extrusion granulator, but ring die granulator can produce more granules through two moulds.
 
The granular compound fertilizer produced by extrusion granulator is processed by screening and packaging, which is the finished fertilizer.
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