SU1375318A1 - Disintegrator - Google Patents

Abstract

The invention relates to devices for grinding abrasive material and improves the efficiency of its grinding. The disintegrator consists of a housing 1 in which a rotor is arranged, made in the form of vertically disposed disks 4 mounted rotatably in opposite directions. Each disk has work elements arranged in concentric circles, with the work elements of one disk located between the work elements of another disk. The working elements of the 5 discs are made in the form of a ball, which provides material crushing due to impact, abrasion and crushing. To create the optimal duration of the crushable material in the working area, the concentric circles of the working elements are spaced from each other at a distance of 3.0-3.5 of the ball diameter, and the distance between the latter is 2.0-2.5 their diameter. (L

Description

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FIG. 2

The invention relates to devices for grinding abrasive material and can be applied in construction and other industries.

The purpose of the invention is to increase the grinding efficiency of the abrasive material.

FIG. 1 shows a disintegrator, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The disintegrator consists of a housing 1 with a loading 2 and a discharge 3 with nozzles, in which a rotor is arranged, made in the form of disks 4, mounted rotatably in opposing guides. On the disks, working elements are arranged in concentric circles. Each work item is designed as a shara 5, mounted on a disk by means of a shaped washer 6 and a bolt 7, while the working elements of one disk are located between the impact elements of another.

The concentric circles are separated by a distance of 3.0-3.5 d from each other, the distance between the balls is 2.0-2.5 d, where d is the diameter of the ball. The specified interval values provide a certain duration of stay of the crushed materials in the working area, as well as the degree of grinding and the quality of the final products. These dimensions provide the greatest effect and are applicable to all types of abrasive substrates. When the boundaries of the indicated coordinates are exceeded, the disintegrator's grinding efficiency decreases.

If the distance between concentric circles is less than 3 d, and the distance between the balls in the circumferential row is less than 2 d, then the working area limits the amount of material being captured and reduces the centrifugal force acting along the radius and the impact force tangentially directed. Thus, the reduced capacity of the working area and the reduced capacity of the destruction of the material adversely affect the grinding efficiency of the disintegrator. If the distance between concentric circles is more than 3.5 d, and the distance between the balls in one row is more than 2.5 d, then there are also factors that reduce the disintegrator's grinding efficiency: large doses of the material being captured require a large energy expenditure, create a danger breakdowns lead to imbalance of the rotors and, consequently, to rapid wear of bearings.

To ensure the efficiency of the disintegrator, the diameter of the flat surface of the washer, with which it is installed on the disk, must be less than the diameter of the ball, and the radius of curvature of the concave spherical surface should be equal to the ball's radius.

Disintegrator works as follows.

 Pieces of waste abrasive material on a flexible basis through the loading nozzle 2 are introduced into the crushing zone, from where they are driven by the centrifugal force to the periphery of the disks 4, subjected to multiple blows against the balls 5 rotating in opposite directions at high speed. Due to the spherical shape of the shock bodies, the crushed material and its grinding products slide off their surface, are not wound on them and all the time

0 are in the working area, which provides the desired degree of grinding of waste abrasive material on a flexible basis, namely the degree of grinding to the state of individual threads and bundles of fibers.

Another advantage of the spherical shape of the percussion elements of the proposed disintegrator is that grinding occurs not only due to the impact of the discarded pieces on the balls, but also due to the abrasion and crushing of the crushed material with balls to the state of individual threads and bundles of fibers. It also increases the grinding efficiency of the disintegrator and allows the grinding product to be obtained in the form of pulp.

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Claims (1)

Invention Formula The disintegrator, comprising a housing with loading and unloading nozzles, a rotor made in the form of mounted with the possibility of counter-rotation vertically disposed disks with work elements arranged in concentric -circles, jipH; in this, the work elements of one of the disks are interposed between the work elements of the other disk, characterized in that, in order to increase the efficiency of grinding the abrasive material, the working elements of the rotor are made in the form of balls fixed on the discs by means of a shaped plate, the concentric circles being separated from each other at a distance of 3.0-3.5 of the diameter of the ball, and the distance between the latter is 2.0-2.5 of their diameter. FIG. 5-6 five