Autonomous dynamic sealing and gas extraction intelligent system for coal mine

Abstract

The invention provides an autonomous dynamic sealing and gas extraction intelligent system for a coal mine, which is suitable for underground sealing and gas intelligent extraction in the coal mine. The autonomous dynamic sealing and gas extraction intelligent system comprises a gas reservoir connected with a gas extraction tube; the gas reservoir is connected with an automatic gas extraction pump for automatically adjusting the extraction negative pressure; the gas extraction tube positioned nearby a borehole is connected with an automatic gas concentration detector; five groups of polyurethane sealing bags are wound outside the gas extraction tube positioned in a coal bed; five groups of plugging cloth capable of being tightly fitted with a coal wall are wound outside the polyurethane sealing bags; a stocker is connected with an automatic feed pressure control pump through a feed pipe; the feed pipe positioned in the coil bed is colligated between the polyurethane sealing bags and the plugging cloth; data signals of the automatic gas concentration detector, the automatic gas extraction pump and the automatic feed pressure control pump are connected with a data line integrator through a data collection line; and the data line integrator is connected with an automatic monitoring controller through a data line. The autonomous dynamic sealing and gas extraction intelligent system has the advantages of simple structure, convenience in operation, convenience in intelligent control and better use effects.

Description

technical field [0001] The invention relates to an autonomous dynamic gas drainage intelligent system for coal mine sealing, which is especially suitable for efficiently sealing underground coal mines and realizing intelligent gas drainage. Background technique [0002] Gas is one of the main problems faced by my country's coal mine safety production. At present, gas drainage is the main means of controlling gas disasters in coal mines, and it is also a necessary link to make full use of clean energy and reduce emissions. When using gas, due to the immature and low efficiency of low-concentration gas utilization technology, the requirements for gas concentration are very high. Therefore, increasing the gas concentration is the key problem faced by gas drainage, and the main reason for the reduction of gas concentration in borehole drainage is that poor sealing of holes leads to air leakage from coal wall fissures. For this reason, the sealing of boreholes is especially imp...

AI Technical Summary

Problems solved by technology

For example, it is necessary to measure the data of gas drainage concentration on time. Due to human operation errors, the measurement data often has large deviations, and it is necessary to adjust the pressure of the gas drainage pump according to the actual gas drainage situation, etc., facing many problems.

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