Hexastyle supporting type coal mining and filling hydraulic bracket

Abstract

The invention relates to a hexastyle supporting type coal mining and filling hydraulic bracket which comprises a telescopic girder, a front top girder, a rear top girder, a front upright post, a middle upright post, a rear upright post, a four bar mechanism, a middle upper part compaction mechanism, a height-regulating jack, a lower box type compaction mechanism, a slide way, a pulling jack, a rear-inserting type top protection device, a filling and mining conveyer and a base, wherein the front top girder is supported through the front upright post and the middle upright post and maintains the balance through the four bar mechanism; the rear top girder is mutually hinged with the front top girder and supported through the rear upright post, bears the pressure of a top plate, controls the deflection of the top plate before filling and can overhang the filling and mining conveyer to realize filling solid fillers in a goaf; and the rear top girder is provided with the slide way and can maintain a working space for normal mining of a working surface, realize the full filling of the goaf and meanwhile compact the fillers by clean mining within a high range. The hexastyle supporting type coal mining and filling hydraulic bracket has compact structure, strong supporting force, convenient operation and good filling effect on the goaf and can adapt to the filling and the mining under a complicated geological condition.

Description

technical field [0001] The invention relates to a six-column supporting hydraulic support for coal mining and filling, which is especially suitable for coal mining and solid filling in goafs in underground coal mines. Background technique [0002] With the development of the economy, my country's demand for coal resources is increasing year by year, and the problem of "three-down" coal pressure is becoming more and more prominent. At the same time, coal mines discharge a large amount of solid waste gangue during production. The traditional method is to pile it directly on the surface. The formation of "buildings" - gangue hills, which are the unique surface characteristics of coal mines, poses a great threat to the environment. With the progress of society, a consensus has been formed on the social responsibility of enterprises. The filling of gobs is an urgent problem that needs to be solved. How to complete the goaf filling operation simply, quickly and efficiently is a big ...

AI Technical Summary

Problems solved by technology

[0002] With the development of the economy, my country's demand for coal resources is increasing year by year, and the problem of "three-down" coal pressure is becoming more and more prominent. At the same time, coal mines discharge a large amount of solid waste gangue during production. The traditional method is to pile it directly on the surface. The formation of "buildings" - gangue hills, which are the unique surface characteristics of coal mines, poses a great threat to the environment. With the progress of society, a consensus has been formed on the social responsibility of enterprises. The filling of gobs is an urgent problem that needs to be solved. How to complete the goaf filling operation simply, quickly and efficiently is a big problem. Therefore, it is a big problem to develop a support that can not only maintain the safety of the coal mining face space, but also realize the filling of solid objects in the gob. It is one of the keys to realize this technology. This is because the support of the gob is subjected to the pressure of the roof before filling, which will cause a large subsidence, which will affect the filling operation and filling effect of the goaf.

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