Lining plate structure for solving deformation or cracking of autogenous mill and semi-autogenous mill

Abstract

The invention discloses a lining plate structure for solving deformation or cracking of an autogenous mill and a semi-autogenous mill. The lining plate structure comprises a lining plate body, and the lining plate body comprises a base plate and a lifting strip; the outer side surface of the base plate is attached to the inner walls of the barrels of the autogenous mill and the semi-autogenous mill; the inner side surface of the base plate is provided with recesses on two sides of the lifting strip, and the recesses can accommodate the deformation quantity of a stressed part when the base plate is deformed under the action of external force; the lifting strip is provided with a plurality of slots capable of penetrating through the lifting strip. According to the invention, the substrate is provided with the recesses and the lifting strips are provided with the plurality of slots, when the metal on the surface layer of the lining plate is impacted and extended, the metal of the extended part extends into the recesses and the slots, so that the extension amount is accumulated and is separated by the grid slots and the slots and the extended and deformed metal is accommodated, and the lining plate is not bulged and deformed due to large-area accumulation; a series of problems caused by bulging of the lining plate are avoided; the problems of bulging deformation, cracking or breakage of the lining plate in the using process are solved, the reliability of the lining plate can be effectively improved, and the service life of the lining plate can be effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of autogenous mills and semi-autogenous mills, in particular to a liner structure for solving deformation or cracking of autogenous mills and semi-autogenous mills. Background technique [0002] The existing grinding equipment ball mill, autogenous mill and semi-autogenous mill are becoming more and more large-scale, especially the high output of autogenous mill and semi-autogenous mill, which simplifies the crushing process and is favored by more and more mines enterprise's attention. However, the particle size of the autogenous mill and semi-autogenous mill is large, and the grinding medium balls used are also large. The impact of the ore and the medium ball on the inner lining of the mill is also large, which often causes the lining to deform, crack, and the bolts are broken. The liner is broken. Usually, the life of the liner of the autogenous mill and semi-autogenous mill is only one-half or one-third...

AI Technical Summary

Problems solved by technology

When the deformation is serious, the bolts that fix the liner will be broken; when the mill is working, the impact on the liner is distributed in a point-like manner, and it is not synchronized. A part of the surface metal is pulled when the liner bulges, and plasticity first occurs. Deformation, when the amount of deformation is too large, the surface of this part of the metal will crack and crack (actually there are frequent changes in extrusion and stretching between metals, resulting in cracks in fatigue damage), and as the bulging deformation further increases, the surface The crack will also expand and extend to the deep layer of the lining board. The crack will also extend to the deep layer of the lining board under the repeated impact of the steel ball ore. Blocks fall off, this phenomenon seriously affects the service life of the liner, and ultimately affects the operation of the equipment

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