The advantages and characteristics of the roller extrusion granulator

The extrusion form of the counter-roll extrusion granulator has two types: front discharge and side discharge. The prepared material is poured from the top of the counter-roll extrusion granulator, and there is a vertical screw in the groove. Through the rotation of the screw rod, the material is forcibly sent to the bottom of the double rollers for extrusion, and the two rollers rotate relative to each other, so that the sent material becomes cake-shaped, and the cake-shaped strips enter the shredder and are broken by the rotating knife row. The crushed material enters the granulator and passes through the rolling knife row to make the particles and part of the powdery material enter the vibrating screen for screening. Qualified pellets are sent to the outside through. The sifted powdery material will be sent back to the raw material bin for a roll pressing again, and the size of the extrusion force can be controlled by the hydraulic system according to the needs of granulation. By changing the grooving form of the roll surface, materials such as sheets, strips, and flat spheres can be obtained.

1.The roller extrusion granulator is carefully manufactured with strong anti-corrosion and wear-resistant materials, which has the advantages of beautiful appearance, simple operation, low energy consumption, long life and high granulation rate.

2.The roller extrusion granulator adopts no drying process, normal temperature granulation, one-time molding, less investment, quick effect and good economic benefit. Small power, reliable operation, no three wastes discharge, stable operation, convenient maintenance, reasonable process layout and low production cost. The raw materials have wide applicability and can be used for granulation of various raw materials such as compound fertilizer, medicine, chemical industry, feed, coal, metallurgy, etc., and can produce various concentrations and types (including organic fertilizer, inorganic fertilizer, biological fertilizer, Magnetic fertilizer, etc.) compound fertilizer.

3.The equipment of the roller extrusion granulator is relatively small, occupies a small area and is relatively compact. The price is also cheaper. Suitable for small batches of organic fertilizer granules.

4.The disadvantage of the roller extrusion granulator is that the output is relatively small, and it is not suitable for the granule processing of large-scale organic fertilizer production lines. Since it is a dry granulator, it has requirements on the moisture of the material.

It can be seen from the above that there are two types of organic fertilizer granulators: the advantages and disadvantages of the counter-roller and the new type of organic fertilizer granulator. The counter-roller granulator is small, flexible and occupies a small area, and the price is cheap. Moisture treatment, suitable for processing organic fertilizer granules with low production capacity. The new organic fertilizer granulator has a large production capacity, a wide range of applications, good adaptability to the moisture content of the material, and does not require pre-drying of the material.