SU1174085A1 - Armour lining for tube mill - Google Patents

Abstract

The BALLET MILLING with a ball grinding load, containing armored plates with inclined projections fixed to the cylindrical part of the body with ring rows, is also provided with armored plates with blades arranged with ring rows between armored plates with slots projections, the blades being installed at an angle of 4580 & to the forming body, counting in the direction opposite to the movement of the material.

Description

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The invention relates to the construction of armored mills for ball mill grinding pipe mills and can be applied in the production of building materials, mining and other industries.

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

FIG. 1 shows a pipe mill with an armored lining, a longitudinal section; in FIG. 2, section A-A in FIG. one; in fig. 3 - scanning the surface of the armor.

The armored vehicle contains mounts mounted on the housing 1 in annular rows of armor; plates 2 with inclined projections. The armor plates 3 with the blades 4 are mounted in the annular rows below the armored plates.

The setting angle K of the blades and forming the mill casing is 45-80, calculated in the direction opposite to the direction of movement of the material.

The slope angle of the blades is optimal, since when there is practically no litter. grinding of milling bodies, and at about 80 ° the blades excessively inhibit the processed material, which in both cases adversely affects the grinding efficiency.

The height of the blades is 0.020, 4 times the radius of the mill. The distance between the adjacent edges of the blades is about not less than 0.2 times the width of the blade B. The length of the mill contains up to twelve annular rows of armor plates with blades, which are installed in a ball loading chamber,

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and in the chamber of the mill loading load.

The work of the lining is as follows.

When the mill rotates, the grinding bodies and the material slide off the surface of the blade 4, while the grinding bodies with a larger mass move away from the blade 4 to a greater distance, to a smaller weight to a smaller distance, and thus the grinding bodies are sorted.

Thanks to the fact that the blades of 4 armor plates 3, laid in ring

row, have the angle of the reverse screw, i.e. the slope of the blades 4 is directed towards the loading of the mill. Material suitable to the annular row of armor plates 3 with blades 4, plane

blades 4 are discarded in the loading direction and thus delayed. The material retained by the annular rows of blades 4 is subjected to more intensive grinding.

grinding bodies.

Sorting grinding media and material retention by annular rows of blades 4 increases the grinding efficiency of the material in the mill.

The advantage of the proposed lining is the effective sorting of grinding media along the length of the mill, the increased grinding efficiency of the material.

Invention. The efficiency of grinding material is increased, which increases the productivity of the mill by 3.2%. This gives an annual economic effect of about 4.2 thousand rubles.

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nor the material of FIG.

Claims (1)

BONEFOUTING OF A TUBE MILL with a ball grinding charge, comprising armored plates with oblique protrusions fixed on the cylindrical part of the casing, characterized in that, in order to increase grinding efficiency, it is additionally equipped with armor plates with blades located in annular rows between the armor plates with inclined protrusions while the blades are installed at an angle of 4580 ° to the generatrix of the housing, counting in the direction opposite to the movement of the material. g—— t g Λ - ^ 4 I / ' / / / in / - Λ 1 11 7Z