Coal mining device based on cooperative safe and efficient mining of coal and coal bed gas

Abstract

The invention discloses a coal mining device based on cooperative safe and efficient mining of coal and coal bed gas. The coal mining device can realize automatic mining of coal; size classification of coal briquettes is realized while mining is conducted in a coal cutting manner, and intermittent conveying of the classified coal briquettes is performed, so that classified conveying of the coal briquettes with different sizes is facilitated, conveying equipment does not need to be added, the equipment utilization rate is increased, and the coal mining efficiency is improved; according to a cutting coal mining mechanism, an angle support assembly is arranged to enable a cutting knife to vibrate slightly in the cutting depth direction during cutting, the coal mining efficiency can be effectively improved, meanwhile, the problems of knife clamping, so that the problems of knife jamming, knife clamping and the like are prevented while the mining efficiency is effectively improved; coal dust can be conveniently discharged through slight vibration; a coal cutting gap can be expanded, so that falling of the coal briquettes is facilitated; and the coal mining device is simple in structure, convenient to use and capable of achieving rapid coal mining operation.

Description

technical field [0001] Specifically, the invention is a coal mining device based on the coordinated safe and efficient mining of coal and coal-bed methane, and relates to related fields of coal mining. Background technique [0002] At present, for coal mining, in order to realize the mining of coal bed methane at the same time and reduce the dangerous problems such as gas during coal mining, in order to improve the efficiency of coal mining, it is necessary to carry out coal bed methane mining on coal seams at the same time or at a later time. There are more and more applications. Since the coal seam after coalbed methane mining is generally a coal seam after fracturing, when coal mining is performed directly with an ordinary coal cutter for coal mining, due to the release of fracturing cracks and the impact of subsequent mining, often This makes it easy to get stuck when cutting the coal seam. Moreover, the coal of this mining method often has problems of unequal particle ...

AI Technical Summary

Problems solved by technology

Since the coal seam after coalbed methane mining is generally a coal seam after fracturing, when coal mining is performed directly with an ordinary coal cutter for coal mining, due to the release of fracturing cracks and the impact of subsequent mining, often This makes the coal seam cutting prone to the problem of knife jamming. Moreover, the coal of this mining method often has problems of unequal particle size, and such coal blocks of unequal size will have an impact on transportation and subsequent application, which is not conducive to automatic transportation. And subsequent processing, affecting mining efficiency

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