The construction method suitable for the secondary restoration of the ore-drawing system of the deep-large chute

Abstract

The invention relates to a construction method suitable for secondary repair of a deep and large orepass system. For the transportation of an underground orepass in a non-coal mine, when a fault of a vibration ore-drawing machine needs to be repaired, the personal safety of personnel who carries out the repair work of the vibration ore-drawing machine at the bottom of the orepass is endangered due to the fact that unsafe factors such as rocks fall at a wellhead and rocks spall at the wellbore may occur because of the deep orepass. Horizontal annular grooves are formed in the upper part of an ore storage section of the orepass, and arc-shaped channel steel is inserted for reinforcement, and as an acting point, the horizontal channel steel is laid tightly to form a baffle to block falling stones above the orepass, so that the personal safety of the personnel who carries out the repair work of the vibration ore-drawing machine at the bottom of the orepass. After the repair is completed, the trapezoid channel steel is withdrawn, the arc-shaped channel steel is reserved, and an exit of a measure lane is closed, so that the next fault of the vibrating ore-drawing machine can be repaired in time, the repair period can be shortened, and the economic loss can be reduced.

Description

Technical field: [0001] The invention relates to a construction method applicable to the secondary repair of the ore-drawing system of the deep-large chute. Background technique: [0002] The vibrating ore-drawing machine is a vibration-type inertial vibration ore-discharging equipment with a vibrating motor as the excitation source. It is an ideal equipment for releasing, feeding or loading ore and other materials. Since the vibrating ore-drawing machine is located at the bottom of the chute, the depth of the deep and large chute generally exceeds 500m, and the rock has a strong impact force when it falls from the wellhead to the bottom of the well. Long-term bearing of huge impact force will cause the vibration ore-drawing machine to produce cracks, damage, failure, etc. , need to be repaired in time. [0003] However, when the vibrating ore-drawing machine breaks down and needs to be repaired, because the chute is deep, the workers repair the vibrating ore-drawing machin...

AI Technical Summary

Problems solved by technology

[0003] However, when the vibrating ore-drawing machine breaks down and needs to be repaired, because the chute is deep, the workers repair the vibrating ore-drawing machine directly at the bottom of the chute, which may cause unsafe factors such as falling rocks at the wellhead and peeling off rocks on the wall, which seriously threaten the staff personal safety

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