A new type of liner structure for large autogenous mills

Abstract

The invention discloses a novel liner plate structure used for a large autogenous mill. The novel liner plate structure comprises a feeding end liner plate, a cylinder liner plate, a discharging end liner plate and a filling ring. The feeding end liner plate comprises a feeding end inner ring liner plate body, a feeding end middle ring liner plate body and a feeding end outer ring liner plate body, all of which are sequentially connected. The cylinder liner plate comprises a feeding end cylinder liner plate body, a middle section cylinder liner plate body and a discharging end cylinder liner plate body. The discharging end liner plate comprises a grid plate, an insensate stone window, an external ore pulp elevator, a discharging end middle liner plate body, a middle ore pulp elevator, an inner ring ore pulp elevator, a material discharging device and the like. A flat-head bolt hole is formed in the material discharging device, and an anti-loosening structure is further arranged at the position, corresponding to the flat-head bolt hole, on the material discharging device. The anti-loosening structure comprises a flat-head bolt, an anti-loosening steel bowl, a large gasket, a lock nut, an anti-loosening bolt, an anti-loosening nut and the like. The problems that during running of the mill, ore pulp circular flow scours an end cover, the filling ring falls, the service life of the cylinder liner plate bodies is not equal, discharging cannot be conducted in time through a discharging opening, the flat-head bolt loosens, and insensate stone is not discharged smoothly can be effectively solved.

Description

technical field [0001] The invention relates to the field of large-scale mining autogenous mills and semi-autogenous mills, in particular to a novel liner structure for large-scale autogenous mills. Background technique [0002] The mill liner is used to protect the barrel of the mill from the direct impact and friction of the grinding body and the material, and at the same time lift the material and the grinding body so that it has a certain movement form inside the mill and strengthens the grinding body. The key parts of the mill for the crushing and grinding of materials. The optimization of the liner structure helps to improve the grinding efficiency of the mill, increase the output and reduce the metal consumption. The autogenous mill liner includes a feed end liner, a cylinder liner, a discharge end liner and a filling ring connecting the end liner and the cylinder liner. The feed end liner includes the inner ring feed end liner, the middle ring feed end liner and th...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new liner structure for large autogenous mills, which can effectively solve the problem of slurry circulation washing the end cover, filling ring falling, and cylinder liner life being too short during the operation of the mill. , Insufficient discharge at the discharge port, loose flat head bolts and poor discharge of stubborn stones, etc.

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