Dentate disk crushing granulator

Abstract

The invention relates to a dentate disk crushing granulator. An upper part and a lower part of a tank body of the dentate disk crushing granulator are respectively provided with a feed inlet and a feed outlet. The tank body is composed of two side plates, front end plate located at the front of the tank body, and a back end plate located at the back of the tank body. The dentate disk crushing granulator is characterized in that two principal shaft with the same rotation speed and the opposite rotation directions are connected to a motor output shaft; the two principal shafts are supported on the side plates respectively through bearings; two cutter heads are arranged respectively on the two principal shafts; more than five annular blades are arranged on each one of the cutter heads along the axial direction; more than eighteen saw teeth are distributed uniformly on the circumference of each one of the annular blades; space rings with external diameters less than dedendum circle diameters of the annular blades are arranged respectively between each neighboring two of the annular blades; space ring width B is 1.5 to 3 times annular blade width A; all the annular blades arranged on the two cutter heads are crisscrossed; and a distance from an addendum circle of each one of the annular blades to an excircle of each one of the space rings is in a range of 5 to 20 millimeters. The dentate disk crushing granulator has a reasonable structure and adopts blades to crush and granulate bulk materials, thus is convenient for maintenance and can produce granules with good uniformity.

Description

technical field [0001] The invention relates to a tooth disc granulator, which belongs to the technical field of extrusion granulation. Background technique [0002] The granulator is mainly composed of a frame, a motor and two granule rollers installed on the frame. The two gears are respectively installed at the ends of the two granule rollers, and the motor drives the two gears to drive the two granule rollers to rotate. , the material is squeezed through the teeth on the two crushing rollers to form granules of the required particle size. At present, there are two kinds of structures for the teeth of the crushing roller. One is to draw wire along the axial direction of the roller. There are oblique roller teeth; the other is to draw wire along the circumferential direction of the roller, and the groove line of the roller teeth is parallel to the cross section of the roller, so a pair of crushing rollers are formed by two axially drawn rollers, or through a An axially d...

AI Technical Summary

Problems solved by technology

In the process of crushing the incoming block material, the crushing roller cuts and squeezes the material through the tooth tops and tooth surfaces of the outer peripheral roller teeth of the two rollers to achieve the effect of crushing, but the roller teeth with wire drawing structure The top of the tooth is a continuous linear structure in the axial direction, and each tooth surface is also an integral tooth surface structure in the axial direction, which is easy to cause the tooth tops of the teeth on the outer periphery of the crushing roller to be easily worn

In addition, the length of the granule rollers is mostly 0.5m to 2m, and the lumpy material cannot pass through the two granule rollers evenly along the axial direction for extrusion and shearing, so the rollers on the same granule roller will The wear degree of the tooth surface of the tooth along the axial direction is different, so the particle size of the finished product of the crushed material changes greatly. Although the crushing roller with this structure cuts and squeezes the material through the two tooth surfaces, the length of the tooth surface is the length of the roller. The length of the material will produce axial slippage, which will cause grinding between the materials, and the effect of whole grain cannot be achieved.

Furthermore, in the process of repairing the teeth of the roller, it is necessary to repair the entire periphery of the roller, which not only has a large repair area, but also is not easy to ensure the one-time repair of the teeth, which increases the use and maintenance cost of the crushed grain roller.

Images