A protective wall to prevent coal and gas from protruding

Abstract

The invention discloses a protective wall for preventing coal and gas from protruding, which comprises a first concrete layer, a vertical steel bar, a second concrete layer and a mine main body. The inside of the first concrete layer is poured and fixed with vertical steel bars, and the vertical The first reinforcing bar and the second reinforcing bar are attached to the front and rear sides of the reinforcing bar with screws, and the right side of the first reinforcing bar is fixed with the second reinforcing bar, and the left side of the first concrete layer is poured and installed. There is a second concrete layer, and the inside of the second concrete layer is poured and fixed with a protective frame, and the internal screws of the protective frame are installed with vertical pipes, and the inside of the vertical reinforcement is fixed with a discharge pipe, and the left end of the discharge pipe It is connected with the vertical pipe through the two-way pipe. The protective wall for preventing coal and gas from protruding is provided with vertical steel bars, which facilitates the mutual cooperation of the vertical steel bars, the first reinforcing rib and the second reinforcing bar and improves the firmness and impact resistance of the entire protective wall.

Description

technical field [0001] The invention relates to the technical field of coal and gas outburst, in particular to a protective wall for preventing coal and gas outburst. Background technique [0002] Coal and gas outburst refers to the phenomenon that the inside of the mine is under pressure during the coal mining process and a large amount of coal rock and gas are ejected outward, which will emit a large amount of gas and affect the ventilation facilities and personal safety of the mine. Therefore, the market There is a protective wall to prevent coal and gas from protruding. Although there are many types of protective walls on the market, there are still some shortcomings, such as: [0003] 1. Most of the existing protective walls for mines are built by concrete and masonry, so that the protective walls can perform ordinary protective shielding functions, but when used in mines, the firmness of the protective walls is relatively low. Low, can't be used well; [0004] 2. The...

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Problems solved by technology

[0006] The object of the present invention is to provide a kind of protective wall that prevents coal and gas from protruding, to solve the existing mine protective wall on the market that is proposed by the above-mentioned background technology, most of them are built by concrete and masonry. The wall can be used as a common protective shield, but when used in mines, the protective wall is not strong enough to be used well. The existing protective wall can only serve as a simple protective support when protecting It cannot prevent the phenomenon of coal and gas outburst well

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