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Overlying rock strata pressure support based on coal seam mining

A technology of rock formation pressure and coal seam, which is applied in the field of land mining, can solve the problems of life safety of underground personnel and achieve the effects of improving operation safety, reducing weight and facilitating transportation

Inactive Publication Date: 2019-08-30
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once the cave body collapses, the collapse and fall of many parts in the protection device will hurt the life safety of underground personnel.

Method used

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  • Overlying rock strata pressure support based on coal seam mining
  • Overlying rock strata pressure support based on coal seam mining
  • Overlying rock strata pressure support based on coal seam mining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] see Figure 1~4 , in an embodiment of the present invention, an overburden pressure support based on coal seam mining includes a support frame 1, and the pressure support also includes a slide rail 2, a fixed support plate 3 and a movable support plate 4; the support frame 1 includes a The horizontal edge one 101 of the rear end face, the vertical edge 102 positioned at the left side and the right side and the horizontal edge two 103 positioned at the top surface and the bottom surface, two horizontal edge two 103 upper ends positioned at the top surface are respectively fixedly welded with a slide Rail 2, a chute 5 is opened on the inner side of the slide rail 2, the chute 5 extends from one end of the slide rail 2 to the other end of the slide rail 2, and the chute 5 is slidingly matched with the fixed support plate 3; it is located on the right side of the support frame 1 A pair of fixed seats 6 are fixedly welded on the outer side of the slide rail 2, and a connecti...

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Abstract

The invention discloses an overlying rock strata pressure support based on coal seam mining, and relates to the technical field of land mining. The support includes first horizontal arrises located onthe front end face and the rear end face, vertical arrises located on the left side face and the right side face, and second horizontal arrises located on the top face and the bottom face; the upperend faces of two second horizontal arrises located on the top face are correspondingly and fixedly welded to sliding rails, the inner side face of each sliding rail is provided with a sliding groove which is matched with a fixing supporting plate in a sliding mode; a pair of fixing seats are fixed and welded on the outsides of sliding rails located on the right side of the support, the side, nearthe sliding rails, of a movable supporting plate is fixedly welded to a connecting seat, and the connecting seat is internally provided with a horizontal cylindrical through hole which is matched witha rotating shaft; and the movable supporting plate and the vertical arrises are correspondingly fixedly connected through hydraulic cylinders. According to the overlying rock strata pressure support,a supporting function is achieved, and when the coal mine collapses, temporary shelter space for underground workers and instruments can also be provided, and the safety of underground operation is improved.

Description

technical field [0001] The invention relates to the technical field of land mining, in particular to an overburden pressure support based on coal seam mining. Background technique [0002] Coal is still the main energy source in our country. Since the coal seams are mainly gathered underground ranging from tens of meters to several kilometers, coal mining operations are all underground operations. Due to the mining of underground coal seams, huge cavities are formed underground, and the surface will collapse after losing the underground support force, resulting in production accidents. Therefore, coal mines need to be effectively supported to prevent collapse accidents. The existing support structure includes columns, fixed support plates and bases. By connecting the support structure with the coal mine cave body through rivets and cement, once the coal mine collapses, the support and fixation effect of the cave body on the support structure disappears, and the support stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D19/00E21F11/00E21D15/00
CPCE21D15/00E21D19/00E21F11/00
Inventor 韦善阳孙威
Owner GUIZHOU UNIV
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