Ore grinding medium, and production apparatus and production method thereof

Abstract

The invention relates to an ore grinding medium. The ore grinding medium comprises a first prism, a first frustum outwardly extending from the bottom of the first prism, a second prism outwardly extending from the top surface of the first prism, and a second frustum outwardly extending from the top surface of the second prism, the central axes of the first prism, the second prism, the first frustum and the second frustum are coincident, the cross section area of the first frustum gradually becomes smaller with its outward extension, the cross section area of the second frustum gradually becomes smaller with its outward extension, the top surface of the first frustum is same to the bottom surface of the first prism in shape and area, the bottom surface of the second frustum is same to the top surface of the second prism in shape and area, and the quantity of the side surfaces of each of the first prism and the second prism is not smaller than 3. The invention also relates to an apparatus for producing the ore grinding medium, and a method thereof.

Description

technical field [0001] The invention relates to a grinding medium, in particular to a grinding medium used in a grinding machine, and also relates to a device and method for producing the grinding medium. Background technique [0002] In the mineral processing industry, the shape, size, material and added quality of the grinding media will directly affect the grinding efficiency, metal recovery rate and consumption of metal materials. Therefore, research on the shape, size and material of grinding media has always been the focus of research in this field. [0003] The grinding medium (or grinding body) used in the current grinding machine is generally spherical, cylindrical, frustum-shaped, etc. For the spherical medium, the ore in the grinding machine is in point-to-point contact. Grinding is not conducive to fine grinding, but it often leads to excessive coarseness and metal loss, which makes the consumption of metal materials large and reduces the grinding efficiency. F...

AI Technical Summary

Problems solved by technology

However, due to the joint structure of multi-faceted prism and truncated cone, most of them are produced by casting, which leads to the fact that the intermediate product of the grinding medium may have a lot of burrs and flashes during the production of the grinding medium. This intermediate product takes more time and cost to cut and polish into a finished product

Therefore, the production efficiency and good product rate of the above-mentioned grinding media are all low

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