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Water-fire resistant ventilation air methane mixing device

A water-sealing fire-stop and wind-gas technology, applied in mixers, mixing methods, fluid mixers, etc., can solve the problems of wire mesh blockage, dust blockage, and increased airflow pressure loss.

Active Publication Date: 2014-05-21
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But another problem caused by this is that the screen is often blocked by the dust particles in the mixed gas, resulting in an increase in the pressure loss of the air flow, or the dust passes through the screen and is blocked in the exhaust air oxidation device, resulting in Greater safety hazard

Method used

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  • Water-fire resistant ventilation air methane mixing device
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  • Water-fire resistant ventilation air methane mixing device

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0022] Such as figure 1 As shown, a water-sealed fire-stop type exhaust gas mixing device includes a water storage cylinder 1 and a mixing cylinder 8 connected to the water storage cylinder, and the water storage cylinder is arranged on the side of the mixing cylinder At the bottom, the water storage cylinder is provided with a low-concentration gas inlet pipe 2, the nozzle of the low-concentration gas (5%-30%) inlet pipe is submerged under the liquid surface, and the lower part of the mixing cylinder is provided with at least two According to the exhaust air inlet pipe, the upper part of the blending cylinder is provided with an air outlet 14, and the exhaust air inlet...

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Abstract

The invention discloses a water-fire resistant ventilation air methane mixing device, comprising a water storage barrel and a mixing barrel connected with the water storage barrel, wherein the water storage barrel is arranged at the bottom of the mixing barrel; a low-concentration gas intake pipe is arranged on the water storage barrel; a pipe orifice of the intake pipe is merged below the liquid level; at least two ventilation air intake pipes are arranged at the lower part of the mixing barrel; an escape pipe is arranged on the upper wall surface of the mixing barrel; ventilation air entering the mixing barrel forms a circumferential rotational flow by the at least two ventilation air intake pipes. The invention provides the mixing device which is good in mixing effect, high in safety performance and small in fluid pressure loss, and has dewatering and dust removing functions. The device is applicable to mixing of low-concentration gas with ventilation air or air as well as flammable and explosive gas and air.

Description

technical field [0001] The invention relates to a device for mixing low-concentration gas with exhaust air or air, and flammable and explosive gas with air, which has the functions of dehydration, dust removal and explosion protection. Background technique [0002] "Failing wind" is also called "coal mine wind exhaust gas". Because its methane concentration is generally lower than 1%, it is too difficult to use technology, and it can only be discharged into the atmosphere for a long time. According to statistics, the methane emitted into the atmosphere from exhaust air accounts for about 70% of the total methane emissions in China every year. While causing huge energy waste, it also exacerbates the global greenhouse effect. In recent years, great development has been made in exhaust air thermal storage oxidation technology and exhaust air catalytic oxidation technology. This technology mixes mine exhaust air with low-concentration gas, and sends it to an oxidation device for...

Claims

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Application Information

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IPC IPC(8): B01F5/00B01F3/02B01F3/20B01F23/10B01F23/70
Inventor 徐鹏霍春秀龙伍见康建东逄锦伦兰波高鹏飞李强许慧娟李杰陈晖
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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