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CN-122014144-A - Anti-spraying hole device for coal mining drilling

CN122014144ACN 122014144 ACN122014144 ACN 122014144ACN-122014144-A

Abstract

The invention discloses an anti-spraying hole device for coal mining drilling, which relates to the technical field of coal mining drilling and comprises a protection machine body, wherein a sealing pipe body is fixedly connected to the protection machine body, one end, far away from the protection machine body, of the sealing pipe body is provided with a dilution mechanism, the dilution mechanism comprises a mounting ring, the mounting ring is arranged in a hollow mode, and a plurality of connecting pipes are fixedly connected in the mounting ring. According to the invention, the dilution mechanism is arranged, when the drill hole is used for discharging the rock debris impurities, the viscous impurities entering the protection machine body are diluted through the cooperation of the mounting ring, the connecting pipe and the liquid outlet hole, so that the problem that the discharge space is reduced due to the fact that the viscous impurities are adhered to the discharge channel of the protection machine body when the viscous impurities pass through the protection machine body and are discharged is effectively avoided, meanwhile, the viscosity is reduced through adding water, and meanwhile, the drill rod is cooled when the water contacts with the drill rod, the defect of the prior art is overcome, the smoothness of the protection machine body in discharging is improved, and the normal operation of the drilling work is ensured.

Inventors

  • Jin Weihu
  • CHEN HUITING
  • FANG JIAHU
  • Pan Yanqi

Assignees

  • 淮北矿业股份有限公司

Dates

Publication Date
20260512
Application Date
20251226

Claims (10)

  1. 1. The utility model provides a prevent orifice device that drilling was used in colliery exploitation, includes protection organism (100), fixedly connected with sealed tube body (101) on protection organism (100), its characterized in that, sealed tube body (101) keep away from protection organism (100) one end and be provided with dilution mechanism (200); The dilution mechanism (200) comprises a mounting ring (201), the mounting ring (201) is in a hollow arrangement, a plurality of connecting pipes (202) are fixedly connected in the mounting ring (201), a plurality of liquid outlet holes (203) are formed in the inner surface of the mounting ring (201), each liquid outlet hole (203) is communicated with an adjacent connecting pipe (202), at least one protecting component is arranged in the connecting pipe (202) and used for sealing the corresponding connecting pipe (202), the mounting ring (201) is used for adding dilution liquid and spraying out of the liquid outlet holes (203) through the connecting pipe (202) and used for reducing viscosity of discharged impurities in drilling, and when the dilution liquid passes through the connecting pipe (202), the protecting component is triggered to release the sealing of the connecting pipe (202).
  2. 2. The jet hole preventing device for coal mining and drilling is characterized in that the protecting assembly comprises a sealing block (204), one end of the sealing block (204) is fixedly connected with a post rod (205), the diameter of the sealing block (204) is larger than the inner diameter of the connecting pipe (202), the diameter of the sealing block (204) is smaller than the diameter of the liquid outlet hole (203), the diameter of the post rod (205) is smaller than the inner diameter of the connecting pipe (202), and when dilution liquid passes through the connecting pipe (202), the sealing block (204) is pushed to move into the liquid outlet hole (203) to release the sealing of the connecting pipe (202).
  3. 3. The jet hole preventing device for coal mining drilling according to claim 2, wherein at least one guide block (206) is fixedly connected to the outer surface of the post rod (205), and the guide block (206) is slidably connected with the connecting pipe (202) and is used for guiding sliding of the post rod (205) and the sealing block (204).
  4. 4. The device for preventing holes from being drilled in coal mining according to claim 2, wherein the connecting pipe (202) is provided with a ring groove at one end close to the liquid outlet hole (203), the sealing block (204) has the same diameter as the ring groove, and the sealing block (204) is positioned in the ring groove when the connecting pipe (202) is sealed.
  5. 5. The jet hole preventing device for coal mining drilling of claim 1, wherein a plurality of guide blocks (207) are fixedly connected to the inner surface of the mounting ring (201), the outer surfaces of the guide blocks (207) are arc-shaped, and the guide blocks (207) are positioned on one side, close to the bottom of the drilling hole, of the liquid outlet hole (203).
  6. 6. The device for preventing holes from being drilled in coal mining according to claim 1, wherein a protective net (208) is fixedly connected in each liquid outlet hole (203).
  7. 7. The device for preventing holes from being drilled in coal mining according to claim 1, wherein the dilution liquid is water.
  8. 8. The device for preventing holes from being drilled in coal mining according to claim 1, wherein the dilution mechanism (200) further comprises an adjusting component, the dilution mechanism (200) comprises a mounting plate (211), the mounting plate (211) is fixedly connected with one side of a mounting ring (201) far away from a sealing tube body (101), the mounting plate (211) is slidingly connected with a connecting ring (212) on one side far away from the mounting ring (201), the mounting plate (211) is rotatably connected with an adjusting piece (214), the adjusting piece (214) is connected with the connecting ring (212) through bolts, at least one connecting column (213) is fixedly connected with one side of the connecting ring (212) close to the mounting ring (201), the connecting column (213) penetrates through the mounting plate (211) and is inserted into the mounting ring (201), one end of the connecting column (213) is fixedly connected with a sliding ring (215), the outer surface and the inner surface of the sliding ring (215) are both in contact with the inner wall of the mounting ring (201), the sliding ring (215) is used for attaching the inner cavity of the mounting ring (201) to a plurality of hollow space separating the inner cavity (201), when the two hollow space separating the sliding ring (215) from the inner cavity (201) is connected with the connecting plates (216) through the connecting plates (216), and the sliding plates (216) are fixedly connected with one end of the connecting plates (212), when the mounting plate (211) slides, the size of the liquid inlet of the connecting pipe (202) is adjusted through the cooperation of the connecting column (213), the sliding ring (215) and the baffle plate (216).
  9. 9. The device for preventing holes from being drilled in coal mining according to claim 8, wherein a trapezoid notch is formed in one side, away from the sliding ring (215), of the baffle plate (216).
  10. 10. The jet hole preventing device for coal mining drilling according to claim 1, wherein the outer surface of the sealing pipe body (101) is fixedly connected with a liquid inlet pipe (301), a liquid inlet hole (302) is formed in the sealing pipe body (101), and the mounting ring (201), the liquid inlet pipe (301) and the liquid inlet hole (302) are communicated.

Description

Anti-spraying hole device for coal mining drilling Technical Field The invention relates to the technical field of coal mining drilling, in particular to an anti-spraying hole device for coal mining drilling. Background When the coal mine is mined and drilled, particularly when drilling is performed in a high-gas and soft coal seam, huge gas pressure difference and ground stress release can be formed in the drilled hole, and once a high-pressure gas bag or a geological structure belt is drilled, jet holes are extremely easy to be triggered, so that auxiliary protection work is needed to be performed on the high-pressure gas bag or the geological structure belt by the jet hole prevention device in the process of drilling. When the device is used, the device mainly comprises a sealing module and a flow guiding module, the sealing module mainly comprises a pipe fitting and an air bag wrapped on the outer surface of the pipe fitting, when the device is used, the pipe fitting is inserted into a drilled hole, sealing and fixing of the device and the drilled hole are achieved through expansion of the air bag, the flow guiding module is used for discharging rock debris and coal dust generated by the drilled hole when a drill rod is drilled, and when gas is sprayed out, the sprayed gas can be guided to a designated position through the flow guiding module. The device can better protect drilling operation when in use, but in the process of actual use, because the drill rod needs to be matched with cooling liquid to drill when drilling is carried out in the process of drilling operation, when a soft coal seam is encountered, extremely fine coal dust is formed after being crushed in the drilling process, the surface area is increased, the water absorption is extremely strong, more viscous discharge is easily formed under the matching of the cooling liquid, the device is adhered to the inside of the device when passing through the anti-spraying hole device, so that chip removal channels in the device are reduced, chip removal is influenced, channels are even blocked when serious, and the drilling operation is not facilitated. Disclosure of Invention In view of the above, the invention provides an anti-spraying hole device for coal mining and drilling, which solves the problems in the prior art. The invention provides a jet hole preventing device for coal mining drilling, which comprises a protective machine body, wherein a sealing pipe body is fixedly connected to the protective machine body, and a diluting mechanism is arranged at one end of the sealing pipe body, which is far away from the protective machine body; The dilution mechanism comprises a mounting ring, the mounting ring is hollow setting, a plurality of connecting pipe of fixedly connected with in the mounting ring, a plurality of play liquid holes have been seted up to the mounting ring internal surface, every go out liquid hole all and adjacent connecting pipe be linked together, at least one be provided with protection component in the connecting pipe for sealed corresponding connecting pipe, the mounting ring is used for adding dilution liquid, and pass through the connecting pipe is followed in the play liquid hole blowout for reduce the viscosity of discharging impurity in the drilling, when diluting liquid passes through the connecting pipe, trigger protection component and relieve the seal to the connecting pipe. Preferably, the protection component comprises a sealing block, one end of the sealing block is fixedly connected with a post rod, the diameter of the sealing block is larger than that of the connecting pipe, the diameter of the sealing block is smaller than that of the liquid outlet hole, the diameter of the post rod is smaller than that of the connecting pipe, and when the diluted liquid passes through the connecting pipe, the sealing block is pushed to move towards the liquid outlet hole, so that the sealing of the connecting pipe is relieved. Preferably, the outer surface of the post is fixedly connected with at least one guide block, and the guide block is in sliding connection with the connecting pipe and is used for guiding the sliding of the post and the sealing block. Preferably, one end of the connecting pipe, which is close to the liquid outlet hole, is provided with a ring groove, the sealing block has the same diameter as the ring groove, and the sealing block is positioned in the ring groove when sealing the connecting pipe. Preferably, the inner surface of the mounting ring is fixedly connected with a plurality of guide blocks, the outer surfaces of the guide blocks are arc-shaped, and the guide blocks are positioned on one side of the liquid outlet close to the bottom of the drilling hole. Preferably, each liquid outlet hole is fixedly connected with a protective net. Preferably, the dilution liquid is provided as water. Preferably, the dilution mechanism further comprises an adjusting component, the dilution mechanism compr