Search

CN-121993243-A - Combined dust removal system for coal mine tunnel

CN121993243ACN 121993243 ACN121993243 ACN 121993243ACN-121993243-A

Abstract

The invention provides a combined dust removal system for a coal mine roadway, which comprises an anchor tunneling machine, an anchor conveying machine and a wind barrel assembly, wherein the wind barrel assembly comprises a first airborne wind channel and a second airborne wind channel which are communicated, the first airborne wind channel is arranged on the anchor tunneling machine, the second airborne wind channel is arranged on the anchor conveying machine, the first airborne wind channel is provided with a first fan, the tail end of the second airborne wind channel is communicated with a second fan, the second airborne wind channel comprises a first wind channel section and a second wind channel section, the outlet of the first wind channel section is provided with a pressure relief barrel, the pressure relief barrel is provided with an air outlet, at least part of the pressure relief barrel is inserted into the inlet of the second wind channel section so that gas in the first wind channel section flows into the second wind channel section, and a gap is formed between the pressure relief barrel and the side wall of the second wind channel section. The invention can reduce the resistance of the air duct in the air duct, improve the air suction quantity and accelerate the dust removal efficiency.

Inventors

  • LI JUN
  • HOU SHENGGUANG
  • WEI PENGFEI
  • TIAN JUNJUN
  • YUAN YANKUN
  • SHI LEI
  • YUAN LICAI
  • KANG FUJUN
  • XU SEN
  • CHEN XIANZHONG
  • Xi Sicheng
  • LI BOTONG
  • ZHANG RUI
  • WANG DACHUAN

Assignees

  • 山西天地煤机装备有限公司
  • 山西天地赛福蒂科技有限公司

Dates

Publication Date
20260508
Application Date
20260209

Claims (10)

  1. 1. The combined dust removal system for the coal mine tunnel is characterized by comprising an anchor tunneling machine (11), an anchor conveying machine (12) and a wind barrel assembly (21), wherein the wind barrel assembly (21) comprises a first airborne wind channel (211) and a second airborne wind channel (212) which are communicated, the first airborne wind channel (211) is arranged on the anchor tunneling machine (11), the second airborne wind channel (212) is arranged on the anchor conveying machine (12), the first airborne wind channel (211) is provided with a first fan (214), the tail end of the second airborne wind channel (212) is communicated with a second fan (215), the second airborne wind channel (212) comprises a first wind channel section (2121) and a second wind channel section (2122), a pressure relief barrel (217) is arranged at the outlet of the first wind channel section (2121), the pressure relief barrel (217) is provided with an air outlet (218), and at least part of the pressure relief barrel (217) is inserted into the inlet of the second wind channel section (2122) so that gas in the first wind channel section (2121) flows into the second wind channel section 2122), and a gap is formed between the second wind channel section 2122 and the wind channel section 2122.
  2. 2. The combination dust removal system for a coal mine tunnel of claim 1, wherein the pressure relief cylinder (217) has a tapered flow guide surface (2171), and the air outlet (218) includes a plurality of openings provided in the tapered flow guide surface (2171).
  3. 3. The combined dust removal system for a coal mine tunnel according to claim 2, further comprising an air volume adjusting assembly (41), wherein the air volume adjusting assembly (41) comprises a first guide piece (411) and a second guide piece (412), the first guide piece (411) is slidably connected with the second guide piece (412), the first guide piece (411) is arranged on the pressure relief cylinder (217), and the second guide piece (412) is arranged on the second air duct section (2122).
  4. 4. A combined dust removal system for a coal mine tunnel according to claim 3, wherein the first guide member (411) is provided as a slide bar (4111), the second guide member (412) comprises a plurality of guide rings (4121), the plurality of guide rings (4121) are arranged at intervals along the length direction of the second air duct section (2122), and the slide bar (4111) is movably arranged in the guide rings (4121).
  5. 5. The combined dust removal system for the coal mine tunnel according to claim 1, wherein the air duct assembly (21) further comprises a flexible air duct (213), two ends of the flexible air duct (213) are correspondingly communicated with the first airborne air duct (211) and the second airborne air duct (212), and the length of the flexible air duct (213) along the tunneling direction of the tunneling and anchoring machine (11) is telescopic.
  6. 6. The combined dust removal system for coal mine roadways according to claim 5, characterized in that the flexible air duct (213) is provided with a tensioning assembly (31), the tensioning assembly (31) is used for adjusting the telescopic length of the flexible air duct (213) according to the distance between the anchor driving machine (11) and the anchor handling machine (12) so as to adapt to the movement of the anchor driving machine (11).
  7. 7. The combined dust removal system for a coal mine tunnel according to claim 6, wherein the tensioning assembly (31) comprises a traction rope (311), a pull rope (312) and a traction device (313), one end of the traction rope (311) is connected with the first airborne air duct (211), the other end of the traction rope (311) is connected with the second airborne air duct (212), two ends of the pull rope (312) are correspondingly connected with the flexible air duct (213) and the traction rope (311), and the traction device (313) is connected with the traction rope (311) to adjust the tensioning length of the traction rope (311) according to the distance between the anchor driving machine (11) and the anchor conveying machine (12).
  8. 8. The combined dust removal system for a coal mine tunnel according to claim 7, wherein the tensioning assembly (31) comprises a first pulley (314) and a second pulley (315), the first pulley (314) is arranged on the first airborne air duct (211), the second pulley (315) is arranged on the second airborne air duct (212), the traction rope (311) is wound around the first pulley (314) and the second pulley (315), and the traction device (313) is arranged as a weight.
  9. 9. The combined dust removal system for the coal mine tunnel according to claim 1, further comprising a carrier vehicle (13), wherein the second fan (215) is arranged on the carrier vehicle (13).
  10. 10. The combined dust removal system for coal mine roadways of any one of claims 1 to 9, wherein the first fan (214) and the second fan (215) are both provided as extraction fans.

Description

Combined dust removal system for coal mine tunnel Technical Field The invention relates to the technical field of coal mine dust control, in particular to a combined dust removal system for a coal mine tunnel. Background In the coal mine tunneling process, a large amount of dust can be generated on a tunneling working face, and dust removal equipment is required to be arranged in a roadway to capture the dust. In the related art, dust removal equipment mostly distributes a fan at the far end of a tunnel far away from a tunneling working face through a long-distance air duct, and the fan can form a negative pressure environment in the air duct, so that dust-containing air generated by the tunneling working face is sucked into an air suction port of a heading machine, and then the dust-containing air is intensively treated through the air duct. However, the fan is arranged at the far end of the roadway, dust-containing air enters from the air suction inlet of the tunneling working face, so that the resistance of an air duct in the air duct is obviously increased, the air suction amount cannot meet the expected requirement, and the dust capturing effect and the dust processing capacity of dust removing equipment are affected. Disclosure of Invention The invention aims to solve the technical problems that in the related art, a fan is arranged at the far end of a roadway, the air suction amount at a tunneling working face cannot reach the expected value, and the dust removal efficiency is affected to a certain extent. Therefore, the embodiment of the invention provides a combined type dust removal system for a coal mine tunnel, which can reduce the resistance of an air duct in an air duct, improve the air suction quantity and accelerate the dust removal efficiency. The invention provides a combined dust removal system for a coal mine tunnel, which comprises an anchor tunneling machine, an anchor conveying machine and an air cylinder assembly, wherein the air cylinder assembly comprises a first airborne air channel and a second airborne air channel which are communicated, the first airborne air channel is arranged on the anchor tunneling machine, the second airborne air channel is arranged on the anchor conveying machine, a first fan is arranged on the first airborne air channel, a second fan is communicated with the tail end of the second airborne air channel, the second airborne air channel comprises a first air channel section and a second air channel section, a pressure relief cylinder is arranged at the outlet of the first air channel section, the pressure relief cylinder is provided with an air outlet, at least part of the pressure relief cylinder is inserted into the inlet of the second air channel section so that gas in the first air channel section flows into the second air channel section, and a gap is arranged between the pressure relief cylinder and the side wall of the second air channel section. In summary, the invention can reduce the resistance of the air duct in the air duct, promote the air suction quantity and accelerate the dust removal efficiency through the cooperative cooperation of the first fan, the second fan and the pressure relief cylinder between the first air duct section and the second air duct section. In some embodiments, the pressure relief cylinder has a tapered flow-guiding surface, and the air outlet includes a plurality of openings provided in the tapered flow-guiding surface. In some embodiments, the combined dust removal system for coal mine roadways further comprises an air volume adjusting assembly, wherein the air volume adjusting assembly comprises a first guide piece and a second guide piece, the first guide piece is in sliding connection with the second guide piece, the first guide piece is arranged on the pressure relief cylinder, and the second guide piece is arranged on the second air channel section. In some embodiments, the first guide member is provided as a sliding rod, the second guide member includes a plurality of guide rings, the plurality of guide rings are arranged at intervals along the length direction of the second air duct section, and the sliding rod is movably arranged in the guide rings in a penetrating manner. In some embodiments, the air duct assembly further comprises a flexible air duct, two ends of the flexible air duct are correspondingly communicated with the first airborne air duct and the second airborne air duct, and the length of the flexible air duct along the tunneling direction of the tunneling and anchoring machine is telescopic. In some embodiments, the flexible air duct is provided with a tensioning assembly for adjusting the telescopic length of the flexible air duct to accommodate movement of the anchor handling machine in accordance with the distance between the anchor handling machine and the anchor handling machine. In some embodiments, the tensioning assembly comprises a traction rope, a pull rope and a traction device, where