High-efficiency grinding material

Abstract

The invention relates to a high-efficiency grinding material. The grinding material is wholly in a regular tetrahedron arc body shape; the outer contour of the grinding material is defined by four equal-diameter spherical surfaces according to arrangement of four faces of a regular tetrahedron; every two adjacent spherical surfaces are in smooth connection through a transitional spherical surface;and four vertexes are spherical surface type vertexes and are each in smooth connection with the corresponding three spherical surfaces and the three transitional spherical surfaces, wherein each transitional spherical surface is located between the corresponding two adjacent spherical surfaces. By means of the high-efficiency grinding material, comprehensive performance of crushing and grindingis improved; the grinding consumption is reduced; the production cost is lowered; and production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of abrasives, in particular to a high-efficiency abrasive used in ore grinding machines. Background technique [0002] In mining, cement, power generation, machinery, chemical and other industries, various mills are widely used. The shape, size, material and filling rate of the wear-resistant abrasive used in the mill will directly affect the production efficiency of the mill and the wear-resistant abrasive. Therefore, the research on the shape, size and material of wear-resistant abrasives is the focus of research in this field. [0003] At present, the wear-resistant abrasives filled in the mill are generally spherical, cylindrical, truncated, and truncated. For spherical and cylindrical wear-resistant abrasives, the fluidity is good in the running mill, but it is not conducive to abrasives. As the lifting bar of the inner lining plate of the mill rises, the abrasive drop is small, the crushing efficiency...

AI Technical Summary

Problems solved by technology

[0003] At present, the wear-resistant abrasives filled in the mill are generally spherical, cylindrical, truncated, and truncated. For spherical and cylindrical wear-resistant abrasives, the fluidity in the running mill is good, but it is not conducive to abrasives. As the lifting bar of the inner lining plate of the mill rises, the abrasive drop is small, the crushing efficiency is low, and the free accumulation density is small, which is not conducive to grinding

For truncated truncated (ZL201120496539.2, ZL201410233939.2) and truncated conical abrasives, due to the plane support, it is beneficial for the abrasive to rise with the lifting strip of the inner liner of the mill in the running mill, and the abrasive drop is large and the crushing efficiency is high. In the mill, because there are multiple plane supports, the fluidity of the abrasive material is poor and the grinding efficiency is low, and the plane supports at both ends have poor self-coordination during operation, low free stacking density, large ore particle size, low production efficiency, and grinding during operation. In the machine, the multi-ribbon wear-resistant abrasive wears a lot, which increases the production cost

[0004] At present, in order to improve the production efficiency of mineral powder and adapt to the wide use of various mills, through careful research on the working principles of various mills, it is found that: the working principle of the mill is to take into account both crushing and grinding. If the fluidity is too good (such as spherical), free accumulation The density is small, the crushing and grinding effect is poor. If only the free accumulation density of the abrasive is considered, the fluidity will be poor and the grinding efficiency will be low.

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