Moving air curtain type smoke and dust removing method and apparatus thereof

A dust removal device and air curtain technology, which is applied in safety devices, dust prevention, earth square drilling, etc., can solve the problems of low efficiency of smoke removal and dust removal, large investment in equipment, and incomplete treatment, so as to improve muddy conditions and reduce ventilation cost, effect of improving air quality

Inactive Publication Date: 2007-01-03
中铁十七局集团第三工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] In order to solve the problems of low smoke and dust removal efficiency, slow speed, incomplete treatment, large equipment investment, long ventilation time, high energy consumption and high cost in

Method used

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  • Moving air curtain type smoke and dust removing method and apparatus thereof
  • Moving air curtain type smoke and dust removing method and apparatus thereof
  • Moving air curtain type smoke and dust removing method and apparatus thereof

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Embodiment Construction

[0028] The mobile air curtain type tunnel smoke and dust removal method is to build a movable air curtain formed by pressure airflow in the tunnel and in the direction of the tunnel section. Confine the smoke and dust generated after blasting to a small area on one side of the air curtain, and move the air curtain to the excavation face to gradually concentrate the smoke and dust. Under the joint action of the blasting dust, the dust after blasting is concentrated. When the concentration of harmful dust is low, stop the air curtain, turn on the tunnel press-in ventilation equipment, supply air to the excavation face, and blow the remaining smoke and dust away from the working face, so that the air quality can reach the standard; rebuild the air curtain, move The air curtain moves towards the tunnel entrance, pushing the smoke and dust in the tunnel out of the tunnel.

[0029] The device for realizing the method of the present invention—the mobile air curtain type tunnel smoke...

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Abstract

The present invention relates to a mobile air curtain type tunnel smoke-repelling dust-removing method and its equipment. It is characterized by that in the tunnel interior an air curtain which is formed from pressure air stream and can be moved along tunnel section direction is made up. Said air curtain has the functions of repelling smoke and collecting dust. Said equipment includes motor vehicle, air curtain generation ring tube fixed in the front portion of motor vehicle, air supply mechanism communicated with air curtain generation ring tube and dust-collecting mechanism.

Description

technical field [0001] The invention relates to smoke and dust removal in tunnels, in particular to a mobile air curtain type tunnel smoke and dust removal method and device thereof. Background technique [0002] During the tunnel construction process, rock drilling, blasting, slugging, spray anchor and other processes will generate a large amount of smoke and dust, construction machinery will emit a large amount of exhaust gas, and the disturbance of ballast loading and transportation machinery will also generate a large amount of dust. When the dust concentration is too high and CO, NO, NO in soot 2 , SO 2 、H 2 S, SiO 2 When the concentration exceeds the standard, it will cause serious harm to the human body. Therefore, it is very important to drive smoke and dust in tunnels, especially ultra-long tunnels (several kilometers or even tens of kilometers long). The prior art adopts the method of ventilation to effectively reduce the concentration of harmful gas and dust ...

Claims

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Application Information

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IPC IPC(8): E21F5/04
Inventor 王新民
Owner 中铁十七局集团第三工程有限公司
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