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CN-121976800-A - Dust fall unit and dust fall frock suitable for tunneling front end

CN121976800ACN 121976800 ACN121976800 ACN 121976800ACN-121976800-A

Abstract

A dust fall unit and a dust fall tool suitable for a tunneling front end belong to the technical field of dust fall equipment, spray heads are uniformly distributed on a dust fall panel, the back surface of the dust fall panel is communicated with a high-pressure water source through a main pipe, a recovery pipe is arranged below the dust fall panel, one end of the recovery pipe, which is close to the spray heads, is provided with a recovery inlet which is obliquely arranged, at least one filler is arranged in the recovery pipe, and one end, which is far away from the recovery inlet, of the recovery pipe is connected with an axial flow fan. Dust generated during tunneling is sprayed and suppressed through the spray header, the recovery pipe with the inclined recovery inlet and the axial flow fan are arranged below the dust suppression device, dust-containing water drops and wet dust are timely sucked into the recovery pipe after spraying, the wet dust is filtered and adsorbed through the filler, dust and water are collected, the quantity of slurry formed by mixing water and powder on the ground of a roadway is greatly reduced, the working environment of people and machines is optimized, a large quantity of coal slime is avoided, and the safety guarantee of the operation is improved.

Inventors

  • LI BEIBEI
  • Ma Zhenshuang
  • ZHU XINMING
  • JIANG BANGYONG
  • YANG XIANQIANG
  • Hao Dazhen
  • ZHANG QINGJIAN
  • LI WENQIANG
  • ZHANG QINGDONG
  • ZHANG XINGFANG

Assignees

  • 山东东山新驿煤矿有限公司

Dates

Publication Date
20260505
Application Date
20260116

Claims (10)

  1. 1. The dust settling unit suitable for the tunneling front end comprises a dust settling panel (1), and is characterized in that spray heads (101) are uniformly distributed on a dust settling surface of the dust settling panel (1), the back surface of the dust settling panel (1) is communicated with a high-pressure water source through a main pipe (2), a recovery pipe (3) is arranged below the dust settling panel (1), one end, close to the spray heads (101), of the recovery pipe (3) is provided with a recovery inlet (301), the recovery inlet (301) is obliquely arranged, at least one filler (5) is arranged in the recovery pipe (3), and one end, far away from the recovery inlet (301), of the recovery pipe (3) is connected with an axial flow fan (4).
  2. 2. A dust fall unit for a tunnelling front end according to claim 1, characterized in that the dust fall panel (1) is arc-shaped and is arranged obliquely.
  3. 3. A dust fall unit suitable for a tunneling front end according to claim 1, characterized in that the main pipe (2) is respectively connected with an upper branch pipe (201) and a lower branch pipe (202) through a three-way pipe (203), one end of the upper branch pipe (201) far away from the three-way pipe (203) is communicated with the upper end part of the dust fall panel (1), and one end of the lower branch pipe (202) far away from the three-way pipe (203) is communicated with the lower end part of the dust fall panel (1).
  4. 4. A dust suppression unit for a tunneling front end according to claim 3, characterized in that the main pipe (2), tee (203), upper branch pipe (201) and lower branch pipe (202) are all rigid pipes.
  5. 5. A dust fall unit suitable for a tunneling front end according to claim 1, characterized in that the middle section of the recovery pipe (3) is provided with a side opening (305) for taking and placing the filler (5), and the side opening (305) is hinged with a plugging plate (303) capable of covering the side opening (305).
  6. 6. A dust fall unit for a tunnelling front end according to claim 5, characterized in that two fillers (5) are provided, two fillers (5) being arranged separately on both sides of the side opening (305).
  7. 7. A dust suppression unit for a ripping front end according to claim 5, characterized in that the edge of the plugging plate (303) is provided with a sealing gasket (3032).
  8. 8. The dust settling unit suitable for the tunneling front end according to claim 5, wherein the recovery inlet (301) is of a flared structure, and a protective net (302) is arranged at the recovery inlet (301).
  9. 9. The dust fall tool suitable for the tunneling front end is characterized by comprising an adjusting framework and a side framework, wherein the side frameworks are respectively arranged at two ends of the adjusting framework, the side frameworks are connected with the dust fall unit suitable for the tunneling front end according to any one of claims 1 to 8, the side frameworks comprise inclined support rods I (601) and support rods II (602), the upper end of each support rod I (601) is connected with the upper end of a dust fall panel (1), the bottom end of each support rod I (601) is connected with the lower end of the dust fall panel (1) and a recovery pipe (3), one side, deviating from the dust fall panel (1), of each support rod I (601) is provided with the support rods II (602), the top end of each support rod II (602) is connected with the upper end of each support rod I (601), and the bottom end of each support rod II (602) is connected with the recovery pipe (3).
  10. 10. The dust settling tool for tunneling front ends according to claim 9, wherein three adjusting frameworks are provided, wherein two ends of one adjusting framework are connected with the top ends of two first supporting rods (601), two ends of one adjusting framework are connected with the bottom ends of two first supporting rods (601), and two ends of one adjusting framework are connected with the bottom ends of two second supporting rods (602).

Description

Dust fall unit and dust fall frock suitable for tunneling front end Technical Field The invention belongs to the technical field of dust fall equipment, and particularly relates to a dust fall unit and a dust fall tool suitable for a tunneling front end. Background In the process of tunneling operation, a large amount of high-concentration dust can be generated due to the actions of the cutting head in breaking rock mass, star wheel raking and transporting links and the like. The dust not only seriously pollutes the working environment and affects the health and visual distance of personnel, but also easily causes safety accidents such as explosion and the like. At present, most heading machines generally adopt a cooling-spraying integrated water circulation mode, namely equipment cooling backwater is directly or simply split and then is used for an airborne spraying system so as to realize wet sedimentation of working face dust. However, this conventional mode has significant drawbacks in practical applications. After spray dust fall, the unevaporated moisture accumulates around the roadway floor, shovels and on the transport path, mixing with landed rock dust (especially fine rock dust generated in hard rock excavation) to form a viscous slurry-like substance. The slurry is not only adhered to the surfaces of moving parts such as star wheels, scraper conveyors and the like, so that the scraping resistance is increased, the slurry pulling blocking occurs in a conveyor groove, the slag discharging efficiency is seriously restricted, the tunneling circulation time is prolonged, meanwhile, the phenomenon of water accumulation and mud accumulation in a working area is prominent, and the potential safety hazard of slip and fall injury is formed especially at the two sides of a crawler and in a personnel passing area, and the civilization production environment of a roadway is remarkably deteriorated. In summary, the existing problem is that the rock powder during tunneling forms coal slime seriously in the dust falling process, so that potential safety hazards exist in human and machine operation. Disclosure of Invention The invention provides a dust falling unit and a dust falling tool suitable for a tunneling front end, which are used for solving the problems that coal slime is seriously formed after dust falling of rock powder at present, the working efficiency of people and machines is influenced and potential safety hazards exist. The invention is realized by the following technical scheme: A dust settling unit suitable for a tunneling front end comprises a dust settling panel, wherein spray heads are uniformly distributed on a dust settling surface of the dust settling panel, the back surface of the dust settling panel is communicated with a high-pressure water source through a main pipe, a recovery pipe is arranged below the dust settling panel, one end of the recovery pipe, which is close to the spray heads, is provided with a recovery inlet, the recovery inlet is obliquely arranged, at least one filler is arranged in the recovery pipe, and one end, which is far away from the recovery inlet, of the recovery pipe is connected with an axial flow fan. Dust suppression is sprayed through the dust that produces when having the dust fall panel of shower head directly to the tunnelling, simultaneously dispose recovery pipe and the axial fan that has the slope to retrieve the import in its below, in time inhale the recovery intraductal with dust-laden water droplet and moist dust after spraying, moisture and dust are filtered, adsorbed when the filler, realize dust and water's collection, very big reduction water, powder mix the quantity that forms mud in tunnel ground, optimize people, the machine operation environment, avoid the production in a large number of slime, promote operation safety guarantee. In addition, the dust fall panel is arc-shaped and is obliquely arranged. The inclined arc dust fall panel forms a convex surface which is consistent with the heading direction of the heading head, thereby being beneficial to forming accurate pointing and increasing the radiation area of dust fall. According to a further improvement of the invention, the main pipe is respectively connected with an upper branch pipe and a lower branch pipe through a three-way pipe, one end of the upper branch pipe, which is far away from the three-way pipe, is communicated with the upper end part of the dust fall panel, and one end of the lower branch pipe, which is far away from the three-way pipe, is communicated with the lower end part of the dust fall panel. The main pipe is communicated with a high-pressure water source of the heading machine, and the high-pressure water source is divided into two paths to enter the dust fall panel after passing through the three-way pipe, so that the water pressure consistency and stability of all spray heads are maintained, and the dust fall capacity is improved. The invention further imp