Characteristics and requirements of 76mm grinding medium steel ball

- Apr 08, 2019 -

The 76mm grinding medium steel ball is a ball medium and a rod medium in the process of operation, and in some cases, an irregular shape such as a round table, a column ball or a short round bar is used, which is called a shaped medium. The materials used to make the grinding media are mostly specially processed cast iron or alloys, followed by ceramics, alumina, etc. The grinding media gravel used for gravel grinding has near spheres, ellipsoids, egg shapes, etc., which are specially made from ore or rock. .

 

Characteristics of the use of 76mm grinding medium steel ball

The grinding medium of 76mm grinding medium steel ball metal material should be resistant to abrasion and corrosion to a certain extent, and has sufficient strength and hardness. It is not easy to be broken during work, and can still retain its original shape after wear. For the consumption of metal ball medium (the amount of medium consumed by crushing 1t material, kg/t) and the ball breaking rate (the ball of different sizes under the action of external force, the amount of rupture accounted for the amount of test ball, %) is the mass The main indicator. For rod media, it is not easy to bend and break. In grinding production, the function of the grinding medium as much as possible is the most critical factor for improving the efficiency of the mill.

 

Requirements for the use of 76mm grinding media steel balls

The 1.76mm grinding medium steel ball determines the shape and material of the grinding medium according to the nature of the material to be ground, the feeding material and the product particle size and the process requirements of the next step.

(2) According to the requirements of feedstock and product particle size distribution, determine the appropriate medium size and ratio of different sizes.

(3) According to the mill type and mill rotation rate, determine the media filling rate.

(4) According to the wear law of the medium and the production conditions, the reasonable replenishment of the grinding medium is determined.

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