SU814450A1 - Apparatus for crushing materials - Google Patents

Description

(54) DEVICE FOR CRUSHING MATERIALS

I

The invention relates to equipment for cement and ore mining and can be used in rotary hammer mills for grinding moist soft and viscous materials.

A stone crusher is known, comprising a crushing chamber with a loading opening, a rotor with hammers and a device for preventing material from accumulating between the rotor and the rear wall. The device is a series of towers located between the rotor and the rear wall, which form a rotating barrier in front of the entire vertical part of the rear wall, including the top and bottom of the crushing chamber. The drive has only shafts located mainly in front of the vertical part of the rear wall. The shaft rotates at a speed of 10-50 rpm in the same direction with the rotor. Between the rear wall of the crusher body and the barrier of the shaft, there is an additional wall, elastically connected through the back against the wall of the body with a vibrator.

The said drive shafts have a plurality of cams (hammers) of a triangular shape, which with their apexes pass a meiad with two adjacent apexes of triangles belonging to the adjacent shaft l.

It is also known a device for crushing materials, comprising a housing with rotor positions in it and reflective elements made in the form of grates, freely adjusted by the upper part on the upper part 2j.

0

A disadvantage of the known device is that sticky wet material (e.g., clay) adhered to rollers that rotate from the flow of material is not completely cleaned by scrapers 5. As a result, the material, accumulating and compacted on the rolls, wedges them and the rotation of the rolls stops, which causes the crusher to stop.

0

The purpose of the invention is to improve the performance of the device.

Claims (2)

The goal is achieved by the fact that in a device for crushing materials, including a housing with a rotor and reflective elements made in it, made in the form of grates, freely mounted by the upper part on the shaft, each grate is mounted on the shaft by means of an eccentric sleeve, and the sleeve of one grate is rotated relative to the insert of the other grate at an angle that provides them with oppositely directed movements. FIG. 1 shows the proposed device, a general view; in fig. 2 is a view A of FIG. IJ of FIG. 3 shows a section BB in FIG. one. . The proposed device comprises a housing 1, inside of which there is a rotor with hammers 2, a drive valve with eccentric bushings 3, hangers 4 populated by a shaft with eccentric bushings 3, bron 5, a rod b, the ends of which go beyond the limits of housing 1 and enter in moving away the device 7, the following is for adjusting the gap between the rotating hammers 2 and the armor 5 of the suspensions 4, the beam-weight hanging on the rod b. The proposed device works in the following way. During the operation of the crusher, the self-cleaning reflective device takes over the casting rotor with the hammers 2, part of which sticks to the reflective surface of the suspension armor 5 4. Simultaneously with the work of the crusher rotor, the eccentric shaft 3 rotates, which drives the whole suspension row 4, each of which makes movement in four directions above its own eccentric sleeve. Due to this, all of the weights 4 that make up the reflective surface are in opposite movements. Purification of the material from the reflective surface is provided by the destruction of the structure of the layer of material throughout the entire zone of contact with the surface of adhesion, and it disappears under its own weight. The material, which at this time continues to adhere to the mass that has already been rejected (sticky material does not abruptly fall off), weakens it, and the process of falling away is accelerated. In the process of operation of the crusher, if an indestructible body enters it, with dimensions that may be greater than the distance between the tilting hammer 2 and armor 5, the beam-weight 8 deviates and improves the condition of its passage. Claims An apparatus for crushing materials, including a housing, with a rotor located therein and reflective elements made in the form of grates, freely mounted with the upper part on the shaft, differing from that. that, in order to increase the productivity of the device, each grate is mounted on a weight by means of an eccentric bushing, with the bushing of one grate rotated relative to the bushing of the other grate at an angle ensuring their oppositely directed movements. Sources of information taken into account in the examination 1. US Patent I 3608840, cl. 241/186, 1971. 2. The author's certificate of the USSR 204112, cl. B 02 C 13/09, 1966. 0Utt J