SU1123722A1 - Disintegrator - Google Patents

Abstract

A DISINTEGRATOR, comprising a housing with reflective plates, in which disks are coaxially arranged on horizontal shafts, on the inner surfaces of which work elements are fixed, loading and unloading nozzles, characterized in that, in order to increase the grinding efficiency, additional working elements are mounted on the outer sides of the disks , and the reflective plates are inclined to the body at an angle of 20-40 ° & in the direction of the discharge pipe.

Description

The invention relates to devices for fine and ultrafine grinding of materials and can be applied in the rural, construction, chemical, mining and other industries.

Closest to the present invention is a disintegrator, comprising a housing with reflective plates, in which disks are coaxially arranged on horizontal shafts, on the inner surfaces of which work elements, loading and unloading nozzles are fixed.

A disadvantage of the known device is the low grinding efficiency.

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

This goal is achieved by the fact that in a disintegrator, comprising a housing with reflective plates, in which disks are coaxially arranged on horizontal shafts, on the inner surfaces of which there are working elements, loading and unloading nozzles, on the outer sides of the disks additional working elements are mounted, and reflective plates inclined to the body at an angle of 20-40 ° in the direction of the discharge pipe.

FIG. 1 shows the proposed disintegrator, a general view; in fig. 2 — node I (enlarged) in FIG. one; in fig. 3 shows section A-A in FIG. one.

The disintegrator contains a loading nozzle 1, a housing 2, inside which are located rotors made in the form of disks 3 and 4, on the inner surfaces of which there are rows of working elements 5 and 6, with the rows of one rotor between the rows of another rotor. On the outer surfaces of the disks 3 and 4, additional working elements 7 are mounted. The rotors are mounted on horizontal coaxial shafts 8 and 9 with independent drives. On the housing 1 circumferentially fixed rectangular reflective plates 10, inclined toward the discharge pipe 11.

Disintegrator works as follows.

The rotors with working elements in the form of bales 5-7 are rotated by means of shafts 8 and 9. The source material through the loading nozzle 1 enters the center of the rotors of the disintegrator. Passing successively all rows 5 and 6, the material particles are subjected to grinding

when hitting the center of the casing, the reflective plates 10. As the disks 3 and 4 of the rotors overlap the plates 10 on both sides, the material is effectively destroyed and, caught by the air flow, is output through the annular gap between the discs to the periphery, colliding with the reflective plates installed concentric on both sides of rotors 3 and 4. Bounced off the surface of the peripheral

The reflective plates of the material particles are additionally crushed by the working elements 7 mounted on the outer surfaces of the disks 3 and 4. The highly dispersed material subjected to repeated destruction is discharged through the discharge pipe 11, which somehow separates the disintegrator's grinding chamber into two independent zones: the primary grinding zone, where. material due to the design features of the rotors and

0 central reflective plates are crushed with multiple blows and removed from this zone by air flow through the axial space between the cage 2 of the disintegrator and the rotors, and the secondary effective grinding zone, where the material is additionally destroyed by the impact of the rotors and the working elements of the rotors and is removed from the disintegrator through the discharge pipes installed on both sides of the first zone.

0 Installing reflective plates at an angle of 20-40 ° to the body allows to create conditions under which particles of material bounced off the surface of these plates are hit by working elements, thereby increasing the number of collisions.

At an angle of less than 20 °, the material moves along the surface of the body without multiple destruction. At an angle of more than 40 °, the efficiency of the disintegrator is reduced, since the dust and gas mixture is strongly turbulized, which leads to a rapid heating of the disintegrator body and a decrease in its reliability in operation.

Thus, the presence of working elements 7 on the rotors and installation on the body of the reflective plates 10, fixed under

5 angle of 20-40 ° to the body, increases the grinding efficiency in the disintegrator. In addition, the presence of overlapping central reflective plates contributes to an increase in the residence time of the material particles in the zone of intensive grinding.

GO I

FIG. 2

Claims (1)

A DISINTEGRATOR comprising a housing with reflective plates, in which disks are coaxially located on horizontal shafts, on whose inner surfaces work elements are fixed, loading and unloading nozzles, characterized in that, in order to increase grinding efficiency, additional working elements are mounted on the outer sides of the disks, and reflective plates are inclined to the body at an angle of 20-40 ° in the direction of the discharge pipe. A Ί SU „, .1123722