Coal mine light concentration mash gas safety conveying method and conveying system

A low-concentration gas and transportation system technology, which is applied in the field of low-concentration gas safe transportation methods and transportation systems, can solve the problems of fine water mist failure, influence on atomization effect, small passing gap, etc., and achieve extremely easy formation and maintenance, The effect is easy to guarantee and guarantee the effect of water sealing effect
CN101158286AActive Publication Date: 2008-04-09HUAINAN MINING IND GRP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUAINAN MINING IND GRP
Publication Date
2008-04-09

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Abstract

The invention relates to a safe transferring plan and transferring system used for transferring a low-concentration gas in a coal mine. The invention is characterized in that water continuously flows around an inner wall of a ground positive-pressure gas transferring pipeline to form an annular flow, and the low-concentration gas flows in an annular water seal formed by the annular flow, and the gas flow is obstructed by a column water-group arranged at intervals on the gas transferring direction to form an end-face water seal of the gas, then the low-concentration gas forms an intermittent plunger gas flow in the annular water flow and the end-face water seal. The arrangement of the transferring system of the invention is comparatively simple and is easy for operation, and the energy-cost is low and the gas-supply pressure is stable, and the rest gas can be dispelled automatically, so as to guarantee that the extracting pump can work normally with a safe and reliable capability and a better dehydration effect.
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Description

technical field

[0001] The invention relates to a safe delivery method and a delivery system for gas, more specifically to a safe delivery method and a delivery system for low-concentration gas used for effective utilization of low-concentration gas in coal mines. Background technique

[0002] Coal mine gas has always been a major hidden danger in coal mine safety production, and it is also an associated resource and clean energy in coal fields. Gas drainage is the fundamental way to control coal mine gas disasters. Scientifically and rationally controlling, exploiting and utilizing coal mine gas can not only reduce coal mine gas disasters and accidents, but also turn harm into treasure and create economic value.

[0003] The control, mining and utilization of coal mine gas require safe transportation of gas, and low-concentration gas is even more difficult to transport safely.

[0004] Because gas with a concentration range of 5% to 16% has an explosion hazard, it is usual...

Claims

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