Full-automatic grinder for ore mining

Abstract

The invention relates to the technical field of grinder equipment, and discloses a full-automatic grinder for ore mining. The full-automatic grinder comprises a rack and a roller, wherein the inner wall of the roller is connected to lining plates through connecting blocks, a driving bag is arranged between each lining plate and the inner wall of the roller, and each driving bag is filled with dilatant fluid. According to the full-automatic grinder for ore mining, through hinge joint of the lining plates, when mineral aggregates are in a rising state, due to the fact that the sides, away from the connecting blocks, of the lining plates are low, formed inclined planes support the mineral aggregates, and slipping of the mineral aggregates is effectively reduced; when the mineral aggregates reach the high position, the lining plates are opened to actively enable the mineral aggregates to be separated, separation of the mineral aggregates and the roller at a high speed can be guaranteed, and the use rotating speed range of the grinder is expanded; and the collision force is improved by means of the characteristic that the dilatant fluid is approximately fixed at the moment of expansion, meanwhile, the acting force buffering force can be dispersed globally, the damage generated by the impact force is greatly reduced, and meanwhile, the noise generated by the impact can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of grinding machine equipment, in particular to a fully automatic grinding machine for ore mining. Background technique [0002] Ball mill is a kind of ore grinding machine. The main component is a horizontal drum, and the grinding body is installed in the cylinder. The grinding body is generally a steel ball, and it is loaded into the cylinder according to different diameters and certain proportions. The grinding body can also be steel segments. The material is selected according to the particle size of the grinding material, and the material is loaded into the barrel through the hollow shaft at the feed end of the ball mill. When the barrel of the ball mill rotates, the grinding body is attached to the liner of the barrel due to inertia, centrifugal force, and friction. It is taken away by the cylinder, and when it is brought to a certain height, it is thrown down due to its own gravity, and the falling gr...

AI Technical Summary

Problems solved by technology

[0003] Generally, the rotating speed of the drum is different, and the motion state of the grinding body and the mineral material is different. When the rotating speed is higher than the critical speed, the centrifugal force of the grinding body and the mineral material is relatively large, and it moves circularly against the inner wall of the drum, without grinding and impact. , and when the speed is low, relative sliding occurs during the rising period. At this time, there is no impact on the material, which greatly reduces the grinding efficiency. In actual operation, the composition and phase of the mineral material and the mineral material, steel ball Different filling materials have different requirements for speed, which increases the difficulty of grinding machine operation.

[0004] Secondly, when the steel balls and mineral materials are thrown down, a large impact force is generated on the lining plate. Even if the impact-resistant and wear-resistant lining plate is selected, its service life is quite limited and needs to be replaced regularly. The quality of the plate is relatively large, and the replacement is also relatively complicated. Secondly, the ball mill will generate a lot of noise when it is working, which is far higher than the environmental protection requirements, and further improvement is needed.

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