Ball grinding mill shell liner provided with grading tendon

Abstract

The invention discloses a ball grinding mill shell liner provided with a grading tendon. A strip-type bulging tendon is arranged on the base plate of the shell liner, and is not vertical to the shell liner along the movement direction of a ball grinding mill shell; the included angle of the strip-type bulging tendon and the shell liner along the movement direction of the ball grinding mill shell is 95 degrees to 120 degrees; and the height of the grinding tendon is more than the radius of a small-diameter grinding ball, and smaller than the diameter of the small-diameter grinding ball and the radius of a big-diameter grinding ball. The ball grinding mill shell liner of the invention utilizes the grading tendon to push a part of small-diameter grinding balls to the discharge hole of the ball grinding mill so as to the spherical surface height of the feeding hole of the ball grinding mill to be lowered, and the space accommodating mineral aggregate on the feeding hole to be increased, thus effectively improving the crushing efficiency of the mineral aggregate; and most of the big-diameter grinding balls can only cross the grading tendon from the small-diameter grinding ball, thus avoiding the grading tendon from being abraded and ensuring the lower service life of the grading tendon. The ball grinding mill shell liner of the invention has simple and reasonable structure, is easy to process and manufacture, is not easy to abrade, has obvious grading effect, and can effectively improve the crushing and grinding efficiency of the ball grinding mill.

Description

technical field [0001] The invention relates to a cylinder liner of a ball mill, in particular to a cylinder liner of a ball mill provided with grading ribs; it belongs to the technical field of crushing and grinding machinery. Background technique [0002] The cylinder liner of the ball mill can be divided into a wave crest part and a bottom plate part. The main function of the wave crest is to bring the balls to a certain height so that the balls can fall to a suitable position to efficiently crush or grind the ore; the main function of the bottom plate is to protect the cylindrical shell of the ball mill and make the ball mill The cylindrical shell is not in contact with the mineral material and the grinding ball, so it will not be thinned by the mineral material and the grinding ball. [0003] During the ball milling process, the large-diameter balls mainly play the role of crushing large-diameter materials, and the small-diameter balls mainly play the role of grinding ...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the above-mentioned grading liner is that all the grinding balls are concentrated towards the feed inlet, so that the spherical surface near the feed inlet is raised, the amount of ore that can be accommodated in this area is reduced, and the efficiency of crushing the ore is reduced. , most of the positive effects produced by the relative concentration of large diameter balls to the feed port are offset, and the effect of increasing the output of the ball mill is greatly affected

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