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A closed dust removal method and system for a tunneling face

A closed-type technology for excavating working face, applied in the direction of earth-moving drilling, slitting machinery, etc., can solve the problem that the dust concentration of the working face cannot be reduced to a safe range, hinder the work of the on-site staff, and affect the sight of the driver, etc. The design method is simple and practical, the dust removal effect is good, and the effect of ensuring the air suction volume

Inactive Publication Date: 2011-12-28
SHANDONG UNIV OF SCI & TECH +1
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Problems solved by technology

[0003] At present, various dust removal technologies such as spraying inside and outside the roadheader, dust extraction and purification have been formed in the aspect of flour dust prevention and control of machine excavation. Defects that hinder the work of on-site staff, and, due to the particularity of the excavation work face, the existing dust removal measures are far from being able to reduce the dust concentration of the work face to a safe range

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  • A closed dust removal method and system for a tunneling face
  • A closed dust removal method and system for a tunneling face
  • A closed dust removal method and system for a tunneling face

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Embodiment Construction

[0024] combine figure 1 , figure 2 and image 3 In the following, the enclosed dust removal method for the excavation face will be described together with the closed dust removal system for the excavation face in the present invention.

[0025] A closed dust removal system for a tunneling face, comprising a press-in fan, a press-in air cylinder 7, a metal frame gauze 3, an atomizing nozzle 4, a dust removal fan 8 and a draw-out air cylinder 6.

[0026] The above-mentioned press-in air cylinder 7 is suspended on the top plate above the side of the roadway where the driver's station of the roadheader is located. Blow out to form an air curtain that can close the entire working section of the roadway, and at the same time blow the dust to the other side of the roadway. This method can form an air curtain covering the entire section to prevent high-concentration dust from spreading to the manned operation area behind the heading head, and at the same time, blow the dust produc...

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Abstract

The invention discloses a closed dust removal method and system for a tunneling working face, comprising a press-in fan, a press-in fan, a metal frame gauze, an atomizing nozzle, a dust removal fan and a draw-out fan; the press-in fan forms The air flow is blown out through the press-in type blower to form an air curtain that can close the entire working section of the roadway, and at the same time blow the dust to the other side of the roadway; the atomizing nozzle and gauze mesh cooperate to form a dust control water curtain on the other side of the roadway The gauze and the extractor fan are connected to the dust removal fan. Under the action of the dust removal fan, the dust in the dust accumulation area is sucked into the extractor fan from the dust collection hood, and then enters the dust removal fan for purification. The design method of the present invention is simple and practical, easy to operate, less maintenance workload, does not hinder the normal operation of on-site personnel, the dust removal efficiency exceeds 96%, and the dust removal effect is good.

Description

technical field [0001] The invention relates to the technical field of dust removal technology for roadheaders in coal mine excavation working faces, and in particular to a closed dust removal method for the excavation work face and a closed dust removal system for the excavation work face. Background technique [0002] With the continuous improvement of the degree of mechanization of tunneling, the tunneling methods and techniques of mine roadways are developing towards high-yield and intensive production. It has the advantages of high output and fast footage, but at the same time, this technology is also likely to cause a high amount of dust in the tunneling roadway, which directly brings great difficulties to the dust prevention and control work in the mine. According to the actual measurement, without any dust prevention measures, the dust concentration at the face of the machine excavation is 1200-1500mg / m 3 , individual up to 3000mg / m 3 about. The existence of a lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/22
Inventor 程卫民聂文刘增平周刚孙京凯陈连军于岩斌姚玉静崔向飞杨俊磊
Owner SHANDONG UNIV OF SCI & TECH
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