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Umbrella-shaped air curtain air supply and dust control device for coal mine fully-mechanized excavation face

An air supply device and working face technology, applied in safety devices, mine/tunnel ventilation, dust prevention, etc., can solve problems such as lack of fresh air flow, and achieve the effect of improving dust control effect, enhancing control effect, and enhancing diffusion effect.

Pending Publication Date: 2021-01-22
CHINA COAL TECH ENG GRP CHONGQING RES INST
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Problems solved by technology

[0004] The present invention provides an umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working face of coal mine to solve the problem of lack of fresh airflow in the overlapping area of ​​air supply and dust removal

Method used

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  • Umbrella-shaped air curtain air supply and dust control device for coal mine fully-mechanized excavation face
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  • Umbrella-shaped air curtain air supply and dust control device for coal mine fully-mechanized excavation face

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments.

[0022] The reference signs in the accompanying drawings of the specification include: air supply cylinder 1, first oblique air outlet 2, retractable air cylinder 3, second oblique air outlet 4, air outlet 5, first-stage umbrella-shaped air curtain generator 6. Small steel ring 13, secondary umbrella-shaped air curtain generator 7, third-stage umbrella-shaped air curtain generator 8, guide rod 9, limit sleeve 10, support rod 11, large steel ring 12.

[0023] Such as figure 1 , figure 2 with image 3 Shown; an umbrella-shaped air curtain dust control device for coal mine fully mechanized excavation working face, including the air supply device and the umbrella-shaped air curtain dust control device that produces the umbrella-shaped air curtain, the air supply device and the umbrella-sh...

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Abstract

The invention discloses an umbrella-shaped air curtain air supply and dust control device for a coal mine fully-mechanized excavation face. The device comprises an air supply device and an umbrella-shaped air curtain dust control device, wherein the air supply device is connected and fixed with the umbrella-shaped air curtain dust control device in series, the air supply device is provided with afirst inclined air outlet, and an outlet of the first inclined air outlet inclines towards an inlet of the air supply device; and the umbrella-shaped air curtain dust control device is used for carrying out regional dust control through an umbrella-shaped air curtain. According to the umbrella-shaped air curtain air supply and dust control device for the coal mine fully-mechanized excavation face,the problem that toxic and harmful gas is liable to accumulate in an overlapping area of air supply and dust removal due to lack of fresh air flow is solved, head-on dust is prevented from diffusingbackwards through the umbrella-shaped air curtain formed by the umbrella-shaped air curtain dust control device, regional dust control is achieved, therefore, disordered diffusion of dust on the fully-mechanized excavation face is effectively controlled, and the dust control effect is achieved.

Description

technical field [0001] The invention relates to the technical field of air supply and dust removal in coal mines, in particular to an umbrella-shaped air curtain air supply and dust control device for fully mechanized excavation working faces in coal mines. Background technique [0002] The fully mechanized excavation face of coal mines in my country is one of the places with the most serious dust pollution in many coal mine operation sites. According to statistics, when the effect of dust prevention measures is not ideal, the dust concentration of fully mechanized excavation work flour can usually reach 1000mg / m 3 above. [0003] At present, the most important measure for dust prevention and control in fully mechanized excavation working faces is to control the dust at the front of the working face through the dust control device, and then use the dust collector to suck away and purify the dusty airflow. The current dust control mostly adopts wall-attached air ducts, which...

Claims

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Application Information

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IPC IPC(8): E21F1/04E21F1/14E21F5/00
CPCE21F1/04E21F1/006E21F1/14E21F5/00
Inventor 郑磊李德文许圣东胥奎隋金君郭胜均张小涛魏伟张少华黄立宁刘涛刘国庆刘海辰许洋铭
Owner CHINA COAL TECH ENG GRP CHONGQING RES INST
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