In the field of powder granulation, roller press granulator production lines, with their unique dry extrusion process, can process a wide variety of powdery materials into high-strength, uniform granules, making them a versatile material processing tool.
Roller granulation uses dry extrusion technology to compress powdery materials with a moisture content of <10%. After degassing and spiral pre-compression, the material enters between two relatively rotating rollers, where it undergoes plastic deformation under immense extrusion pressure, being compressed into dense flakes. Subsequently, it undergoes crushing, granulation, and screening, ultimately transforming into uniform granules.
Wide Material Adaptability
The fertilizer industry was the earliest application area for roller press granulator production lines. Potassium sulfate, potassium chloride, ammonium nitrate, monoammonium phosphate, NPK compound fertilizers, phosphate rock powder, humic acid, and other materials can all be granulated using this process. Extrusion granulation was first applied to potassium chloride granulation; granular potassium chloride required for blending fertilizers is primarily produced using the extrusion method.
Widely used in the chemical industry, and in other fields including pharmaceutical granules and food additives.
Advantages in Handling Special Materials
For heat-sensitive materials, roller pressing offers unique advantages. The processing generates almost no temperature rise, which helps protect the nutrients in volatile materials. For organic materials with high fiber content, good granulation can also be achieved by controlling fiber length through pretreatment.
From fertilizers to chemicals, from pharmaceuticals to mining, roller press granulator production lines, with their strong material adaptability and flexible process adjustment capabilities, have become the ideal choice for powder granulation in many industries.