Arch Breaking Method of Underground Coal Bunker

Abstract

The invention discloses a method for breaking an arch of an underground coal bunker, which is carried out according to the following steps: the first step is a monitoring step; the second step is a step of breaking an arch; the third step is to stop breaking an arch; after the third step, the first step is re-executed , until the coal bunker is stopped to drop coal and the conveyor is to transport coal, the method for breaking the arch of the underground coal bunker is stopped. The invention uses high-pressure water to break the arch, and has a strong ability to break the arch; the invention can prevent the blockage of the water spray pipe, and can remotely monitor the operation status of the coal bunker and the conveyor in the ground monitoring room, and timely detect the arching phenomenon of the coal bunker and carry out timely repair. broken arch. In the arch breaking operation, the working frequency of the high-pressure frequency conversion water pump is adjusted according to the actual demand, which is more energy-saving. Through weight monitoring and alarm operations, it is possible to eliminate manual uncertainty, prevent staff from failing to discover coal bunker arching in time due to negligence, and ensure that coal bunker arching can be dealt with in a timely manner.

Description

technical field [0001] The invention relates to the technical field of underground coal transportation. Background technique [0002] The coal bunker is the main loading and storage link in the mine production system, which plays an important role in ensuring the quality of coal products, adjusting the unbalanced state of production and transportation, and ensuring the continuous and stable production of the mine. [0003] There is a conveyor (such as a scraper conveyor) under the coal bunker. When transferring coal, the coal in the bunker falls down on the conveyor. The coal bunkers in the mining area of ​​almost all mines are blocked to varying degrees in the process of production and use, and need to be dealt with frequently. This will not only fail to give full play to the role of the coal bunker, but seriously affect normal production. The most common form of coal bunker blockage is coal bunker arching. [0004] The coal temperature is lower in winter, and the coal c...

AI Technical Summary

Problems solved by technology

[0006] 1. Artificial arch breaking

[0007] After the coal bunker is arched, the staff manually use tools to insert the blockage in the bunker and poke it, causing the coal arch to sink

The disadvantage of this arch breaking method is that the manual labor intensity is high, and it needs someone to be on duty near the coal bunker, which cannot meet the needs of no one on duty at the coal bunker.

[0010] The disadvantages of this method of breaking the arch are: poor safety, long preparation time, and the phenomenon of collapsing the funnel or destroying the warehouse body, there are many unsafe factors

Its disadvantage is: if high-pressure water arch breaking is used as a regular means of arch breaking, it is necessary not to take the high-pressure water pipe out of the coal bunker after arch breaking

In the existing technology, the arching of the coal bunker cannot be found in time, and the arching of the coal bunker cannot be started in time through inspection after the coal bunker is not falling smoothly.

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