There are different classifications of organic fertilizer granulator: disc granulator, rotary drum granulator, and roller extrusion pelletizer; Because the organic fertilizer particles produced by different organic fertilizer ingredients are different, and different soils require different fertilizer particle sizes, the granulator solves this problem, and can produce organic fertilizers of different particle sizes and shapes with different granulation machines according to different needs. Today we mainly introduce the double roller press granulator. The extrusion structure of the extrusion granulator mainly has two forms of roll extrusion and wheel grinding extrusion. The roller extruding pelletizer consists of a feeding device and two parallel rolls that rotate relative. The axis line of one roll is fixed, and the axis line of the other roll is parallel to move, so that there is an accurate small gap between the two rolls. The size of the gap is adjusted by two or four hydraulic cylinders of the push rod to move the roller axis line to maintain a constant extrusion pressure. The arrangement of charging system and roll of extrusion granulator has many forms; Screw pusher can be vertical or horizontal; Its speed is adjustable; The hopper position is adjustable and kept constant; The surface of the circumference of the roll is spherical or corrugated to form a shaped cavity. The powder is continuously and evenly added from the hopper to the top of the two rolls, and under the continuous rotation of the extrusion roll, the powder is bitten into the two rolls and extruded into sheet material.
