Replacement lining plate assembly of manganese steel lining plate supporting draw shaft damaged lining plate and installation method thereof

Abstract

The invention discloses a replacement lining plate assembly of a manganese steel lining plate supporting draw shaft damaged lining plate and an installation method thereof. The replacement lining plate assembly comprises a replacement lining plate, a plurality of anchoring holes are formed in the replacement lining plate, anchoring assemblies are connected to the anchoring holes, each anchoring assembly comprises an anchor rod and steel wedges symmetrically embedded into the two ends of the anchor rod in an expansion mode; and the inner end of the anchor rod is anchored to rock through the steel wedges, and the outer end of the anchor rod is anchored to the replacement lining plate through the steel wedges. During replacement operation, the damaged lining plate is removed, the replacementlining plate is hoisted in place after the anchoring holes in the corresponding replacement lining plate is drilled, then the anchoring assemblies are knocked and installed, and the time for personnelto enter a well can be effectively shortened; and after replacement is completed, due to the fact that the main action mechanism of anchoring of the lining plate is that the radial pressure of the anchor rod on the hole wall is increased in an expansion mode, friction force is increased, anchoring of the replaced lining plate is more stable, meanwhile, the lining plate is difficult to damage by the outside, the defect that in a traditional mode, welding points are poor in shear strength and tensile strength is overcome, and the service life of the replacement lining plate is prolonged.

Description

technical field [0001] The invention belongs to the field of mine shaft and roadway engineering, in particular to a replacement liner assembly for a manganese steel liner supporting a damaged liner of a chute and an installation method thereof. Background technique [0002] Due to the complex geological conditions of the mine, it is inevitable that rocks will be broken during the construction of the main shaft. The use of manganese steel liners to support the chute has the characteristics of long application time and good ore drawing effect, and is more in line with the overall layout of the mine system. During the use of the chute, the continuous impact of the ore on the shaft wall will cause a part of the liner to wear or even break, so it needs to be maintained periodically. The maintenance engineering of the manganese steel liner supporting the chute is relatively difficult. The whole maintenance process is high-altitude operation, and the main focus is the wire rope. T...

AI Technical Summary

Problems solved by technology

[0003] The traditional repair of the manganese steel liner adopts the method of anchoring the steel hook to replace the damaged liner. After the steel hook is restored to use in the main chute, due to the continuous friction of the ore and the corrosion of water in the shaft, the position of the hook gradually falls off. As a result, the newly installed liner cannot be hung for a long time, showing the serious consequences of rapid damage to the repaired position and increasing maintenance frequency

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