SU1414455A1 - Disintegrator - Google Patents

Abstract

The invention relates to a grinding apparatus and makes it possible to increase the grinding efficiency. The disintegrator contains a cylindrical body 1, in which there are two working bodies installed one inside the other. The inner working body is made in the form of a glass with rows of elongated holes on the side surface, between which are mounted 9 rectangular-shaped punches. The end surface of the enclosing rotor has segmental grooves. Having passed successively all the rows of grinding elements of the working bodies, the material is scattered in the centrifugal field through segmental grooves and is hit by the blow 9. The ground material is sifted through the holes 10 into the discharge port 13. 4 sludge.

Description

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The invention relates to devices for fine grinding and activation of various materials and can be used in the chemical, food, construction and other industries.

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

Fig. I shows a disintegrator, a general view; figure 2 is a section a-A. on figure 1; fig.Z - node I in figure 1; figure 4 - view B in figure 1.

The disintegrator contains a cylindrical body 1, inside of which on the horizontal shafts 2 and 3 there are installed working bodies 4 and 5 with grinding elements 6 and 7 of lamellar form. The working body 5 is made in the form of a glass with longitudinal rows of elongated holes 8 on the side surface, between which, from the outside, a rectangular-shaped beat 9 is mounted. The side surface of the working body 4 has a hole 10, and the end - segmental grooves 11.

Disintegrator works as follows.

The source material through the loading nozzle 12 enters the center of a rapidly rotating tool.

4, where, by the action of centrifugal forces, it is thrown onto the grinding elements 6 of the first row of the working body and is destroyed. Moving in the annular gap of the first row, the particles of the destroyed material fall

hit by the elements 7 of the working body

5, rotating in opposite directions. Large fragments are destroyed by the impact of the impact of the grinding elements of the first row of the working body 5, and small, picked up by the air flow, move in the radial direction and enter

to the next row of impact elements where their destruction continues, but at a higher speed.

Passing successively all the rows of grinding elements, the fine material is scattered in the centrifugal field of inertia through the oblong hole 8 and is hit by

beat 9. Holes 8 are not obstructed during the operation of the disintegrator, but rather pass through fine material. The side edges of the working bodies 4 and 5 exclude the possibility of large fragments escaping from the zone of intensive grinding. The height of the working body 4 depends on the geometrical dimensions of the disintegrator and can vary in the range of 15-45 mm. When the height of the rim is less than 15 mm, breakthrough of relatively large particles of material through the axial gap between the working bodies is observed, at a height of more than 45 mm the productivity of the disintegrator is reduced by 15-20% due to deterioration of the sieving conditions. The presence of segmental grooves 11 on the side surface of the working member allows particles smaller than 3-5 µm to flow into the mill casing, past the perforation hole. Large particles under the action of centrifugal forces are pressed against the annular surface of this working body, lose their kinetic energy and are subjected to secondary grinding by blows beat 9 the finished material is sieved through the holes 10 into the discharge port 13.

Claims (1)

Invention Formula A disintegrator containing a cylindrical body mounted in it with the possibility of opposite rotation in the form of a glass with rows of oblong holes on the lateral surface, between which from the outside were mounted a rectangular shape, with the second working body An is located inside the other, the end surface of which has segmental grooves, and the grinding elements of the working bodies are made of lamellar. eleven  Rag. J 7J FIG. g View 6 (rotated) 9ag