GZL-360 second-hand extrusion dry roll granulation machine

GZL-360 second-hand extrusion dry roll granulation machine

The process of producing compound fertilizers through dry granulation. Squeezing granulation is applied in the field of fertilizers, and the granules (1-4mm) required for mixing fertilizers (BB fertilizers) are mostly produced by extrusion method. In recent years, extrusion granulation has developed rapidly in China for the production of compound fertilizers.

There are two forms of extrusion granulation: roller type and wheel rolling type. Roller type extrusion is first pressed into large blocks, and then crushed into particles. This device has high capacity, high particle strength, and low energy consumption. Roller type extrusion is widely used abroad. Wheel rolling is a straight rolling method on the surface of the roller

working principle

The process principle of roller extrusion granulation is that dry materials aggregate into dense and hard large blocks (cakes) under pressure, which is called the extrusion process; The process of crushing and sieving the cake into granules is called granulation. The function of compression is to squeeze out the air between particles, and to make the particle spacing close enough to generate attractive forces such as van der Waals forces, adsorption forces, crystal bridges, and embedded connections. The strength of extruded granules is mainly formed by the intermolecular forces between molecules.

The principle of wet mixing granulator is to use the strong stirring effect of the stirring blade to form a three-dimensional motion state of axial, radial, and tangential movement of the material (powder) in the container, thereby achieving uniform mixing, and then turning it into spherical particles through the vertical cutting blade. This series of products adopts the traditional horizontal cylindrical and conical structure, which has high material agitation efficiency, good uniformity, easy operation, high production efficiency, more uniform particles, less fine powder, better flowability, stable equipment performance, and good product process reproducibility. Widely used in industries such as pharmaceuticals, food, and chemicals.

1. Inflatable sealed drive shaft, can be switched to water during cleaning;

2. Fluidized granulation, resulting in approximately spherical particles with good flowability;

3. Good reproducibility of particles between batches;

4. Completed in the same closed container, dry mixing wet mixing granulation, process reduction, in compliance with cGMP specifications;

5. The speed and granulation time can be set;

6. The speed and granulation can be switched between manual and automatic operation;

7. Can set the terminal current to judge automatic operation;

8. Wide adaptability, suitable for granulation of particles with different viscosity characteristics and particle sizes;

9. High quality stainless steel material, introduced German polishing technology, with minimal material adhesion;

GZL-360 second-hand extrusion dry roll granulation machine