SU1759456A1 - Centrifugal mill - Google Patents

Abstract

SUMMARY OF THE INVENTION: The centrifugal mill comprises a housing 1 with a feed funnel 2. Inside the housing, the end of the pneumatic ring 3 with the multi-tooth gear section 4 and the vertical rotor 5 with the accelerating channel 6 are mounted for vertical movement. rusa with increasing angle. 2 Il.

Description

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The invention relates to a technique for grinding materials and can be used for grinding grain and leguminous agricultural crops, as well as in other types of industry for grinding hard materials.

A centrifugal crusher is known, comprising a housing, inside which a horizontal disk with working protrusions is mounted on a vertical shaft, and reflective plates 1 are located on the inner surface of the housing.

A disadvantage of the known device is low efficiency when grinding various materials due to the fact that particles of various materials fly out of the nozzles at different angles, which prevents them from hitting the lining at right angles when all the energy is spent on destruction.

A centrifugal mill is known, selected as a prototype, comprising a housing inside which there is a jacking ring with an internal gear profile and a rotor with a vertical axis of rotation mounted in it, made with lower and upper discs, between which working elements forming the accelerating channel are located, and fitted with a shell installed in the housing with the possibility of vertical movement by means of inclined gear guides fixed on it and the inner surface of the housing formed of a set of separate removable vertical bars of the square section, each mounted in the shell to be rotatable about its Osm and operating members are in the form of segments, the segments are made of elastic synthetic material 2.

A disadvantage of the known mill is its low efficiency, when grinding particles of various materials fly out of the rotor at different angles, which prevents them from striking the bar at a right angle when all the energy goes into destruction.

The aim of the invention is to increase the efficiency when grinding materials of various sizes,

The goal is achieved by the fact that in a centrifugal mill containing a cylindrical body, inside of which, the fender ring with an internal gear profile and the rotor, made with an accelerating channel, are mounted with the possibility of vertical movement, the gear profile

the elements of the gear profile of each successive rus are rotated relative to the elements of the gear profile of the previous rus with an increasing angle.

5 Figure 1 shows centrifugal

mill, vertical section; figure 2 is a bumper ring with a multi brown toothed profile.

The centrifugal mill contains a cylindrical housing 1 with a feed funnel 2. Inside the housing 1, the end ring 3 is mounted with the possibility of vertical movement with an internal multi-breasted gear profile 4 and a rotor 5 seconds

5 overclocking channel 6. The elements of the gear profile 4 of each successive Rus are rotated relative to the elements of the gear profile of the previous Rus with an increasing angle. To output the finished product

0 the mill is supplied with chute 7,

Centrifugal mill works as follows.

The crushed material through the feed funnel 2 enters the accelerating wheel of the rotating rotor 5 and is ejected from it at high speed under the action of centrifugal forces on the toothed profile4 of the breakaway ring 3. The material is crushed by hitting the elements of the toothed profile 4. It consists of two components: relative velocity around the center of rotation and portable velocity — translational motion

5 material from the center to the periphery and depends on the types of ground materials due to their different friction coefficients. Moving the bump ring 3 in height, the mill is tuned to the best

0 grinding efficiency when working with a material having the same physical properties due to the fact that the elements of the toothed profile 4 of each subsequent rus are rotated relative to the elements

5 gear profile of the previous Rus with an increasing angle. Having obtained the best performance and fineness of the finished product when grinding the material on the toothed profile 4 of one of the Rus, the corresponding profile 4 is disposed against the acceleration channel 6 of the rotor 5 and the necessary volume of this type of material is crushed. If it is necessary to grind another kind of material, the adjustment process

5 mills repeated. The finished product is removed from the mill through the chute 7.

The technical and economic advantages of the proposed centrifugal mill are to increase efficiency by selecting the optimal geometric

parameters for each material to be ground.

Claims (1)

Claims of the invention: A centrifugal mill, comprising a cylindrical body, inside of which a jacking ring with an internal gear profile and a rotor are mounted for vertical movement, V, hshshsh shig% y1 // 4 J made with an accelerating channel, characterized in that, in order to increase the efficiency of grinding various materials, the gear profile is made multi-colored, with the elements of the gear profile of each subsequent russ being rotated relative to the elements of the gear profile of the previous rus with an increasing angle. at shyg% d FIG. 2 // 4 J