SU1711971A1 - Disintegrator - Google Patents

Abstract

The invention relates to a device for grinding, mixing mechanical activation, bulk materials of pulps, mixtures and can be used in various industries and in agriculture, for example, for grinding grain. The purpose of the invention is to increase the efficiency of materials disintegration and reliability of the device by reducing the wear rate. The disintegrator is provided with bushings that are loosely mounted on the fingers. Sleeves can be mounted on the fingers of a single disc. The outer surface of the sleeve is made conical, and the bases of the cones of the sleeves face the disks on which they are fixed. The sleeves are mounted on the fingers with the ability to interact with one another bushes located on the fingers of adjacent concentric rows. 3 hp The invention relates to devices for grinding and mixing bulk materials and for homogenizing, activating solutions, slurries of liquid mixtures and can be used in various industries. The purpose of the invention is to increase the efficiency of material disintegration and increase the reliability of the device due to reducing wear rate. In FIG. 1 shows a disintegrator, a general view; in fig. 2 - disk with rings, general view; in fig. 3 - a fragment of the section between the interdimensional space (during the rotation of the disks); in fig. 4 - location vtulo.k on the fingers; in fig. 5 - the same, with tapered bushings. The disintegrator consists of a casing 1 in which two discs 2 are placed. On the last fingers 3 are cantilevered, which are arranged in concentric rows, and each row of fingers of one disc is located between two rows of fingers of another disc. The fingers 3 are fitted with sleeves 4 of a cylindrical (FIG. 4) or conical (FIG. 5) shape, the diameter of which is larger than the diameter of the fingers 3. The casing 1 is equipped with a loading cone 5, Each disk 2 is fixed on the axis of the drives 6, which ensure the rotation of the disks 2 opposite sides. The disintegrator operates as follows. Engines 6 are turned on, and the disks 2 begin to rotate in opposite directions. Through the loading opening 5 'serves crushed material, for example blast furnace slag, which enters the interdisk space. The particles of the material are kicked from the fingers of one disk 3 and are thrown onto the trajectory of a row of fingers of the other disk moving in the opposite direction. . • VIU M

Description

After several blows, the particles of the waste material are thrown to the periphery of the disks 2. Taking into account that 3 fingers 4 are worn freely on the fingers, the gap between them during the operation of the disintegrator is constantly changing under the stochastic effect of the material being processed. fingers 3 with sleeves 4 in this case are soft (in contrast to the known device). This provides a sharp decrease in wear of the fingers and sleeves, which are twisted under the action of shock loads and constantly change their position relative to the fingers, in addition, the quality of grinding improves as the material between the sleeves undergoes complex immersion, the area of action of each pin with the sleeve expands.

Another advantage of the disintegrator is the ease with which it can be repaired, since in this case the worn bushings are removed and new bushings are put on the fingers, and in the known device the repair is associated with numerous and complex operations.

The size of the sleeves 4 can be chosen such that the interaction of the side surfaces of the sleeves located on the cores of the adjacent concentric rows is ensured. This provides fine grinding of the material due to its abrasion, destruction under the action of tangential stresses. Replacing the sleeves 4 of the same diameter with the sleeves of another diameter ensures a quick and simple change of the technological properties of the disintegrator.

The outer surface of the sleeves 4 can be made conical (Fig. 5). In this case, the clearance is additionally changed due to the stochastic movement of the sleeves in the axial direction.

Relative finger speed 300 m / s and above. At the same time, grinding of such solid materials as Portland cement clinker, quartz sand, blast furnace slag is possible. The proposed device with soft fingers can be used for grinding aggregated materials - clays, chalk of packed cement, etc.

When low-speed rotation of the discs 2 and equipping the fingers 3 with bushings 4, the surfaces of which interact with each other, effective grinding of grain of different agricultural crops is provided.

Claims (4)

1. Disintegrator, which includes two disks arranged parallel and coaxially to each other, on which are concentric fingers are fixed in rows, and each row of fingers of one disk is located between two rows of fingers of another disk, and two drives for rotating each disk in opposite directions, which is so that, in order to increase the efficiency of materials disintegration and reliability of the device by reducing the wear rate, it is provided with sleeves that are loosely mounted on the fingers. 2. A disintegrator according to Claim 1, characterized in that the sleeves are mounted on the fingers of one disc. 3. Disintegrator according to claim 1, characterized in that the external surface the sleeves are made conical, and the bases of the cones of the sleeves are turned to the sides of the disks on which they are fixed. 4. Disintegrator according to claim 1, characterized in that the sleeves are mounted on fingers with the ability to interact with one another bushes located on the fingers of adjacent concentric rows. Fig 1 FIG. 3 Fig. $