Deep extra thick coal seam impact ground pressure prevention and control equipment

Abstract

The invention discloses deep extra thick coal seam impact ground pressure prevention and control equipment. The deep extra thick coal seam impact ground pressure prevention and control equipment comprises a prevention and control column body, a hydraulic cylinder fixedly sleeves the bottom end of the prevention and control column body, the hydraulic cylinder is fixed to the ground in a coal mine through bolts, a top plate is fixedly connected to the top end of the prevention and control column body, the top plate is in contact with the top of a coal seam in a coal mine, and the prevention andcontrol column body is used for supporting coal mine internal space to prevent an extra thick coal seam from occurring impacting ground pressure; telescopic rods are movably inserted into four cornersof the top plate, fixed steel plates are fixedly connected to one ends of the two telescopic rods, double-faced rubber hanging rain cloth is fixed to the bottom ends of the fixed steel plates in a threaded mode, and elastic cloth is arranged at one end of the double-faced rubber hanging rain cloth in a sewing mode. According to the deep extra thick coal seam impact ground pressure prevention andcontrol equipment, a movable anti-blocking plate is arranged in a channel, the anti-blocking plate crushes coal briquettes when the fallen coal briquettes are blocked, so that the moving smoothness isimproved, and the coal briquettes are conveniently collected.

Description

technical field [0001] The invention relates to the technical field of coal mine prevention and control equipment, in particular to a rock burst prevention and control equipment for deep and extra-thick coal seams. Background technique [0002] Layered solid combustible minerals transformed from plant remains through complex biochemical and geological processes. It occurs in coal-bearing rock series and is located between roof and floor rocks. The number of layers, thickness, occurrence and burial of coal seams Restricted by paleostructure, paleogeography, and paleoclimate conditions, when the coal seam is deeper underground, the thicker coal seam at the top will have a more dangerous rock burst phenomenon, which will cause the coal blocks of the coal seam to fall off, thus affecting the safety of the operator. It is safe, but there are some deficiencies in the existing deep and extra-thick coal seam rock burst prevention and control equipment during use. [0003] The curre...

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Problems solved by technology

[0002] Layered solid combustible minerals transformed from plant remains through complex biochemical and geological processes. It occurs in coal-bearing rock series and is located between roof and floor rocks. The number of layers, thickness, occurrence and burial of coal seams Restricted by paleostructure, paleogeography, and paleoclimate conditions, when the coal seam is deeper underground, the thicker coal seam at the top will have a more dangerous rock burst phenomenon, which will cause the coal blocks of the coal seam to fall off, thus affecting the safety of the operator. It is safe, but there are some deficiencies in the existing deep and extra-thick coal seam rock burst prevention and control equipment in the process of use

[0003] The current prevention and control equipment generally adopts the method of collecting falling coal blocks during use to avoid the coal blocks falling directly, but when the coal blocks fall on the prevention and control equipment, the load force of the prevention and control equipment is increased during long-term use, and at the same time It will also cause problems that are difficult to clean up and cannot meet the needs of use

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