Hydraulic coal bunker bursting device

Abstract

The invention discloses a hydraulic coal bunker bursting device. The device comprises a mounting seat; the mounting seat comprises a top plate and a mounting seat side wall connected to the lower partof one side of the top plate; the top plate is downwards connected with a spring; the lower end of the spring is connected with a cover plate; a water spraying pipe with an upward opening is arrangedunder the cover plate; an extending rod of an electric push rod slides through the mounting seat side wall, and the end part of the electric push rod is connected with a power disc; the top of the water spraying pipe penetrates through a mounting hole of the power disc; the water spraying pipe has a water spraying position and a storage position under driving of the electric push rod and the power disc. When water spraying is not needed, the water spraying pipe can return to below the cover plate, and the top end of the water spraying pipe is pressed against the cover plate, so that a phenomenon that coal in a coal bunker in a storage state enters a water spraying pipe is well avoided. Therefore, the water spraying pipe can be kept from being blocked during long-term use of the hydrauliccoal bunker bursting device, the bursting capacity is strong, and the hydraulic coal bunker bursting device is suitable to be used as a regular bursting device.

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

Because the outlet of the high-pressure water pipe is facing upward, there may be arching, so during the normal use of the coal bunker and the process of coal falling, loose coal and coal dust can easily enter the high-pressure water pipe, thereby blocking the high-pressure water pipe

Therefore, high-pressure water arch breaking is not suitable as a regular means of arch breaking, resulting in the fact that high-pressure water arch breaking is rarely used in practice

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