A device for preventing and controlling rock burst in deep and extra-thick coal seams

Abstract

The invention discloses a device for preventing and controlling deep and extra-thick coal seam rockbursts, which includes a prevention column main body. The bottom end of the prevention column main body is fixedly covered with a hydraulic cylinder. The hydraulic cylinder is fixed on the ground in the coal mine through bolts, and The top of the main body of the prevention column is fixedly connected with a roof plate, and the roof plate is in contact with the top of the coal seam in the coal mine. The main body of the prevention column is used to support the internal space of the coal mine to prevent the occurrence of impact ground pressure in the extra-thick coal seam; the four corners of the roof plate are movable. A telescopic rod is inserted, one end of the two telescopic rods is fixedly connected to a fixed steel plate, the bottom end of the fixed steel plate is threaded with a double-sided glued raincoat, and one end of the double-sided glued raincoat is sewn with an elastic cloth. ; The inner channel of the present invention is provided with a movable anti-blocking plate, which crushes the coal when the falling coal is blocked, thereby improving the smoothness of its movement and facilitating the collection of the coal.

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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