Hole sealing device

Abstract

The invention discloses a hole sealing device and an application method thereof. The hole sealing device comprises a pipe plug, a hollow holey pipe, an expansion component I, a pump drainage concentric pipe, an explosion component, an expansion component II, a grouting pipe and a drainage pipe connected in sequence; the pump drainage concentric pipe is respectively arranged between the expansion component I and explosion component, between the explosion component and the expansion component II, and between the expansion component II and the drainage pipe, the pump drainage concentric pipe is composed of concentric inner pipe and outer pipe, a clapboard is arranged between the inner and outer pipes to form an isolating cavity structure, and the inner pipe of the pump drainage concentric pipe is connected with the grouting pipe; each of the expansion component I and expansion component II is composed of the pump drainage concentric pipe at the middle and water filter cloth packaged outside the pump drainage concentric pipe, and the inner pipe of the pump drainage concentric pipe is connected with a check valve; the explosion component is composed of the pump drainage concentric pipe and an explosion valve arranged on the inner pipe of the pump drainage concentric pipe. The hole sealing device is simple in structure and safe and convenient to use, and the pump drainage and grouting are integrated; the hole sealing device solves the problem of non-ideal sealing effect in the existing hole sealing process.

Description

technical field [0001] The invention relates to a hole-sealing device, which is mainly used for hole-sealing equipment for underground gas control in mines. Background technique [0002] With the deepening of coal mining year by year, the gas content in coal seams has also increased, and the proportion of high gas mines and coal and gas outburst mines has increased. Gas has become a serious restrictive factor for current and even future coal production, and is one of the main bottlenecks for coal development. It is very difficult to meet this requirement in difficult-to-drain coal seams, and even in coal and gas outburst mines, some mines have to be closed for this reason. It is necessary to break through the shackles of coal mine gas and solve the difficult problem of drainage for the current coal industry. very important. Mine gas not only poses a huge threat to the safety of coal production, but also has a strong negative effect on the environment. The main component o...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems existing in the current technology, to provide a sealing device with simple structure, safe and convenient use, integrated pumping and grouting, and at the same time provide the application method of the sealing device to solve the existing sealing problem. The problem of unsatisfactory sealing effect in the process

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