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Blending and treating system for ventilation air methane and drainage methane in coal mine

A treatment system and gas technology, applied in the direction of gas discharge, gas treatment, auxiliary pretreatment, etc., can solve the problems of waste of non-renewable resources, aggravation of air pollution and greenhouse effect, and achieve the goal of increasing operation resistance and burden and reducing operation resistance Effect

Active Publication Date: 2016-03-09
兴边富民(北京)清洁能源技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct emission of low-concentration drainage gas from coal mines has caused a huge waste of non-renewable resources on the one hand, and has also aggravated air pollution and the greenhouse effect on the other hand.

Method used

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  • Blending and treating system for ventilation air methane and drainage methane in coal mine
  • Blending and treating system for ventilation air methane and drainage methane in coal mine
  • Blending and treating system for ventilation air methane and drainage methane in coal mine

Examples

Experimental program
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Effect test

Embodiment 1

[0077] Such as figure 1 As shown, it is a blending treatment system for coal mine exhaust air and low-concentration gas drainage of the present invention. The blending treatment system includes: exhaust air induction hood 6, exhaust air conveying pipeline 7a, and drainage gas connection pipeline 4 , mixer M, mixed gas delivery pipeline 7b, induced draft fan 11 and regenerative high-temperature oxidation device 12; the said exhaust air delivery pipeline 7a is communicated with the exhaust air induction hood 6, so that the exhaust air is absorbed to the exhaust air conveying due to the negative pressure In the pipeline 7a; the exhaust port of the exhaust gas connecting pipeline 4 communicates with the exhaust air conveying pipeline 7a, so that the drained gas is input from the exhaust gas connecting pipeline 4 to the exhaust air conveying pipeline 7a, and is connected with the exhaust air conveying pipeline 7a The flowing exhaust air is mixed uniformly by the mixer M until the m...

Embodiment 2

[0093] Such as figure 2 As shown, it is a blending treatment system for coal mine exhaust air and low-concentration gas drainage of the present invention. The blending treatment system includes: exhaust air induction hood 6, exhaust air conveying pipeline 7a, and drainage gas connection pipeline 4 , mixer, mixed gas delivery pipeline 7b, induced draft fan 11 and regenerative high temperature oxidation device 12. The difference from Embodiment 1 is that it also includes a chimney 27 and a steam boiler 31, and the chimney 27 communicates with the regenerative high-temperature oxidation device 12 through the provided clean gas delivery pipeline 26 for converting the regenerative high-temperature oxidation The clean gas produced by the oxidation treatment of the device 12 is discharged into the atmosphere; the clean gas delivery pipeline 26 is provided with a clean gas valve 28 for controlling the opening and closing of the clean gas delivery pipeline 26 . Both the steam boiler ...

Embodiment 3

[0097] Such as image 3 As shown, it is a blending treatment system for coal mine exhaust air and low-concentration gas drainage of the present invention. The blending treatment system includes: exhaust air induction hood 6, exhaust air conveying pipeline 7a, and drainage gas connection pipeline 4 , mixer, mixed gas delivery pipeline 7b, induced draft fan 11 and regenerative high temperature oxidation device. The difference from Embodiment 1 is that this embodiment includes multiple regenerative high-temperature oxidation devices (12a, 12b...12x shown in the figure), and the mixed gas delivery pipeline 7b is provided with multiple mixed gas Conveying pipeline 25, described multi-channel mixed gas conveying pipeline 25 communicates with several regenerative high-temperature oxidation devices in parallel, and isolating valves (20a shown in the figure, 20b...20x) and induced draft fans (11a, 11b...11x shown in the figure). All regenerative high temperature oxidizers are control...

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Abstract

The invention provides a blending and treating system for ventilation air methane and drainage methane in a coal mine. The blending and treating system comprises a ventilation air methane inducing cover (6), a ventilation air methane conveying pipeline (7a), a drainage methane connection pipeline (4), a mixer (M), a mixed gas conveying pipeline (7b), an induced draught fan (11) and a heat-accumulating type high-temperature oxidation apparatus (12). A gas outlet of the drainage methane connection pipeline (4) is communicated with the ventilation air methane conveying pipeline (7a), so the drainage methane is sucked into the ventilation air methane conveying pipeline (7a) from the drainage methane connection pipeline (4) and uniformly blended with the ventilation air methane in the ventilation air methane conveying pipeline (7a); and the obtained mixed methane is conveyed to the heat-accumulating type high-temperature oxidation apparatus (12) by the mixed gas conveying pipeline (7b) for oxidation treatment. The blending and treating system can realize safe acquisition, blending and conveying of the ventilation air methane and the drainage methane in the coal mine, provides a safe gas source for subsequent utilization projects like heat-accumulating type high-temperature oxidation and discharges thoroughly oxidized products into the atmospheric environment.

Description

technical field [0001] The invention relates to the fields of coal mine energy saving and emission reduction, coal mine safety technology and engineering, in particular to a coal mine ventilation and gas extraction mixing treatment system. Background technique [0002] During the production process of coal mines, a large amount of gas stored in coal seams will flow into the mining space. In order to ensure the safety and health of the air in the underground mines of coal mines, it is necessary to blow a large amount of fresh air into the underground mines. These airflows carry very low concentrations of methane (less than 0.75%) is discharged from the ground into the atmosphere through the return air outlet, commonly known as "air exhaust gas" or "air exhaustion". [0003] Especially in some high-gas mines, because the gas concentration of the working face far exceeds the standard stipulated in the "Coal Mine Safety Regulations", it is difficult to control the gas concentrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/72B01F3/02E21F7/00B01F23/10
CPCB01D51/10B01D53/72E21F7/00B01D2258/02B01D2257/7025B01F23/19Y02C20/20
Inventor 马丁·韦内特万绍鸿徐方马立波杰森·施罗德喻光
Owner 兴边富民(北京)清洁能源技术有限公司
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