CN216477348U - Dust device for coal mine tunneling - Google Patents
Dust device for coal mine tunneling Download PDFInfo
- Publication number
- CN216477348U CN216477348U CN202122360913.2U CN202122360913U CN216477348U CN 216477348 U CN216477348 U CN 216477348U CN 202122360913 U CN202122360913 U CN 202122360913U CN 216477348 U CN216477348 U CN 216477348U
- Authority
- CN
- China
- Prior art keywords
- water
- water outlet
- fixedly connected
- drilling machine
- tunneling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005641 tunneling Effects 0.000 title claims abstract description 40
- 239000000428 dust Substances 0.000 title claims abstract description 34
- 239000003245 coal Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 213
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 238000005507 spraying Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 238000009412 basement excavation Methods 0.000 claims description 15
- 239000003381 stabilizer Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 11
- 230000001629 suppression Effects 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 4
- 235000019994 cava Nutrition 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of mining of mine caves, in particular to a dust-settling device for coal mine tunneling, which comprises a tunneling drilling machine, a spraying assembly arranged above the tunneling drilling machine and used for preventing dust, and an angle adjusting assembly arranged outside the tunneling drilling machine and used for adjusting the angle, wherein the spraying assembly comprises a motor, a transmission rod, a push rod, a stabilizing sleeve, a piston valve, a water storage bin, a water inlet pipe, a water inlet spring, a water inlet plug, a water outlet cabin, a water outlet spring, a water outlet plug, a water outlet pipe and a water distribution ring. The dust fall efficiency is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of mine hole mining, and particularly relates to a dust falling device for coal mine tunneling.
Background
Mining refers to the excavation of minerals naturally produced such as solid, liquid or gas, including underground or aboveground excavation, the operation of mine, wherein need use multiple mining devices and machinery, wherein just including the entry driving machine, but current entry driving machine need incessant a large amount of water resources of use when operation, is unfavorable for the saving work of water resource in the exploitation project in large-scale ore deposit hole, and traditional entry driving machine is when carrying out the dust fall simultaneously, the dust fall device that sets up on the device can't adjust the angle of spraying, is difficult to carry out the problem of adjusting according to the on-the-spot condition of work.
In order to solve the problem, a dust falling device for coal mine tunneling is provided in the application.
SUMMERY OF THE UTILITY MODEL
To solve the problems raised in the background art described above. The utility model provides a dust-settling device for coal mine tunneling, which can realize the cyclic and orderly spraying of water for dust settling when the dust-settling device works through the working of a spraying assembly, can greatly reduce the water to be used, is favorable for avoiding the waste of water resources, and is favorable for adjusting the angle of spraying dust settling according to the actual condition of a working site through the working of an angle adjusting assembly, so that the dust-settling efficiency is effectively improved.
In order to achieve the purpose, the utility model provides the following technical scheme: the dust falling device for coal mine tunneling comprises a tunneling drilling machine, a spraying assembly and an angle adjusting assembly, wherein the spraying assembly is arranged above the tunneling drilling machine and used for preventing dust, and the angle adjusting assembly is arranged on the outer side of the tunneling drilling machine and used for adjusting an angle;
the spraying assembly comprises a motor, a transmission rod, a push rod, a stabilizing sleeve, a piston valve, a water storage bin, a water inlet pipe, a water inlet spring, a water inlet plug, a water outlet cabin, a water outlet spring, a water outlet plug, a water outlet pipe, a water distribution ring, a water feeding pipe and a water spraying head, wherein the surface of the motor is rotationally connected with one end of the transmission rod, the other end of the transmission rod is rotationally connected with one end of the push rod, the surface of the push rod is slidably connected with the inner surface of the stabilizing sleeve, one end of the stabilizing sleeve, which is far away from the push rod, is fixedly connected with the surface of the tunneling drilling machine, the other end of the push rod is fixedly connected with the surface of the piston valve, the surface of the piston valve is slidably connected with the inner surface of the water storage bin, the surface of the water storage bin is fixedly connected with the surface of the water inlet plug, and one end of the water inlet spring are fixedly connected with the surface of the water inlet plug, the other end of the water inlet spring is fixedly connected with the inner surface of the water storage bin, the water outlet cabin is arranged below the water inlet plug, the inner surface of the water outlet cabin is fixedly connected with one end of the water outlet spring, the other end of the water outlet spring is fixedly connected with the surface of the water outlet plug, the surface of the water outlet plug is fixedly connected with the water outlet cabin, one side of the water outlet cabin, which is far away from the motor, is provided with the water outlet pipe, one end of the water outlet pipe is fixedly connected with the water storage bin, the other end of the water outlet pipe is fixedly connected with the water diversion ring, the water distribution ring is fixedly connected with the surface of the tunneling drilling machine, one side of the water distribution ring, which is far away from the water outlet cabin, is fixedly connected with one end of the water supply pipe, the other end of the water supply pipe is fixedly connected with the water spraying head, and the water spraying head is arranged on the surface of the tunneling drilling machine.
Preferably, the length of the transmission rod is greater than the linear distance between the push rod and the motor.
Preferably, the water inlet plug and the water outlet plug face the inside and the outside of the water storage bin respectively.
In the dust reducing device for coal mine excavation according to the present invention, the water diversion ring is preferably shaped such that the water diversion ring is annularly installed around the excavation drilling machine, and the water jets are equiangularly provided on the surface of the excavation drilling machine.
As a preferred preference of the dust fall device for coal mine excavation, one side of the spraying assembly is further provided with an angle adjusting assembly, the angle adjusting assembly comprises a power gear, a rack, a displacement ring, an angle adjusting strip, a stressed gear and a stabilizer, one end of the power gear is rotatably connected with the surface of the excavation drilling machine, the surface of the power gear is meshed with the rack, one end of the rack is fixedly connected with the surface of the displacement ring, the other side surface of the displacement ring is fixedly connected with the angle adjusting strip, the surface of the angle adjusting strip is meshed with the stressed gear, one side of the stressed gear is provided with the stabilizer, one end of the stabilizer is fixedly connected with the surface of the excavation drilling machine, and the other end of the stabilizer is rotatably connected with the water spraying head.
Preferably, in the dust reducing device for coal mine excavation according to the present invention, the diameter of the inner surface of the displacement ring is equal to the diameter of the excavation drilling machine.
Preferably, the angle adjusting strips are arranged on the surface of the displacement ring at equal angles.
Compared with the prior art, the utility model has the beneficial effects that: this device is to traditional colliery tunnelling to optimize the improvement with dust device, has at dust device during operation, makes orderly spraying of moisture circulation carry out the dust fall, and the moisture that can be great reduction needs to use is favorable to avoiding the waste of water resource, simultaneously, through the work of angle modulation subassembly, is favorable to adjusting the angle of spraying the dust fall according to the actual conditions in work place, makes dust fall efficiency obtain the characteristics of effectual promotion.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
FIG. 4 is a schematic diagram of a three-dimensional cross-sectional structure of the displacement ring and the angle adjusting bar of the present invention;
fig. 5 is a schematic three-dimensional structure diagram of the displacement ring and the angle adjusting strip of the present invention.
In the figure:
1. tunneling a drilling machine;
2. a spray assembly; 21. a motor; 22. a transmission rod; 23. a push rod; 24. a stabilizing sleeve; 25. a piston valve; 26. a water storage bin; 27. a water inlet pipe; 28. a water inlet spring; 29. a water inlet plug; 210. a water outlet cabin; 211. a water outlet spring; 212. a water outlet plug; 213. a water outlet pipe; 214. a water diversion ring; 215. a water supply pipe; 216. a sprinkler head;
3. an angle adjusting component; 31. a power gear; 32. a rack; 33. a displacement ring; 34. angle adjusting strips; 35. a stressed gear; 36. a stabilizer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1:
a dust fall device for coal mine tunneling comprises a tunneling drilling machine 1.
In this embodiment: the current entry driving machine need incessant a large amount of water resources of use when the operation, is unfavorable for the saving work of water resource in the exploitation project in large-scale ore deposit hole, and traditional entry driving machine is when carrying out the dust fall simultaneously, and the dust device that sets up on the device can't adjust the spraying angle, is difficult to carry out the problem of adjusting according to the on-the-spot condition of work, for solving above-mentioned problem, increases on this basis and sprays subassembly 2 and angle modulation subassembly 3.
Further, the method comprises the following steps:
as shown in fig. 1-5:
with the above in mind: the spraying component 2 comprises a motor 21, a transmission rod 22, a push rod 23, a stabilizing sleeve 24, a piston valve 25, a water storage bin 26, a water inlet pipe 27, a water inlet spring 28, a water inlet plug 29, a water outlet cabin 210, a water outlet spring 211, a water outlet plug 212, a water outlet pipe 213, a water distribution ring 214, a water supply pipe 215 and a water spray head 216, wherein the surface of the motor 21 is rotatably connected with one end of the transmission rod 22, the other end of the transmission rod 22 is rotatably connected with one end of the push rod 23, the surface of the push rod 23 is slidably connected with the inner surface of the stabilizing sleeve 24, one end of the stabilizing sleeve 24, far away from the push rod 23, is fixedly connected with the surface of the tunneling drilling machine 1, the other end of the push rod 23 is fixedly connected with the surface of the piston valve 25, the surface of the piston valve 25 is slidably connected with the inner surface of the water storage bin 26, the surface of the water storage bin 26 is fixedly connected with the water inlet pipe 27, the inner surface of the water storage bin 26 is combined with the surface of the water inlet plug 29, the surface of the water inlet plug 29 is fixedly connected with one end of the water inlet spring 28, the other end of the water inlet spring 28 is fixedly connected with the inner surface of the water storage bin 26, a water outlet bin 210 is arranged below the water inlet plug 29, the inner surface of the water outlet bin 210 is fixedly connected with one end of the water outlet spring 211, the other end of the water outlet spring 211 is fixedly connected with the surface of the water outlet plug 212, the surface of the water outlet plug 212 is fixedly connected with the water outlet bin 210, a water outlet pipe 213 is arranged on one side of the water outlet bin 210 away from the motor 21, one end of the water outlet pipe 213 is fixedly connected with the water storage bin 26, the other end of the water outlet pipe 213 is fixedly connected with a water distribution ring 214, the water distribution ring 214 is fixedly connected with the surface of the tunneling drilling machine 1, one side of the water distribution ring 214 away from the water outlet bin 210 is fixedly connected with one end of a water supply pipe 215, the other end of the water supply pipe 215 is fixedly connected with a water spray head 216, and the water spray head 216 is arranged on the surface of the tunneling drilling machine 1.
In this embodiment: when water spraying and dust falling are required, the motor 21 is started when the tunneling drilling machine 1 is operated, two ends of the transmission rod 22 are respectively rotated between the motor 21 and the push rod 23 under the driving of the motor 21, the push rod 23 is pushed through the transmission rod 22, meanwhile, the stabilizing sleeve 24 and the push rod 23 slide, the stability of the movement of the push rod 23 is ensured, the piston valve 25 at one end of the push rod 23 slides in the water storage bin 26 while the push rod 23 is pushed, the water pressure in the water storage bin 26 is increased, the water outlet spring 211 in the water outlet bin 210 is pushed through the water pressure, the water outlet plug 212 is separated from the water outlet bin 210, water enters the water outlet pipe 213, then the water flow enters through the water outlet pipe 213, the water distribution ring 214 and respectively enters the water supply pipe 215 through the flow distribution of the water distribution ring 214, and finally is sprayed out through the water spray head 216, when the water spraying in the water storage bin 26 is finished, the air pressure in the water storage bin 26 returns to normal, the water outlet spring 211 is restored under the influence of normal air pressure, the water outlet plug 212 is pulled to reset, the push rod 23 is pulled back, the air pressure in the water storage bin 26 becomes low to form a negative pressure area, the air pressure outside the water storage bin 26 pushes the water inlet plug 29 in the water storage bin 26, meanwhile, the water inlet plug 29 stretches the water inlet spring 28, water is conveyed to the water storage bin 26 through the water inlet pipe 27, when the water storage bin 26 is filled with water, the water pressure in the water storage bin 26 is balanced with the air pressure outside, the water inlet plug 29 is closed under the pulling of the water inlet spring 28, then, the piston valve 25 pushes the water outlet plug 212 again under the pushing of the stabilizing sleeve 24, and spraying and dustfall work is carried out circularly.
Further, the method comprises the following steps:
in an alternative embodiment, the length of the transmission rod 22 is greater than the linear distance between the push rod 23 and the motor 21.
In this embodiment: the length difference between the rotation of the motor 21 and the transmission rod 22 can effectively drive the push rod 23 to move, and the device can obtain effective kinetic energy.
Further, the method comprises the following steps:
in an alternative embodiment, the water inlet plug 29 and the water outlet plug 212 face the inside and the outside of the storage chamber 26, respectively.
In this embodiment: the device can effectively store water and drain water, so that spraying work can be carried out in a circulating and orderly manner, water is guaranteed not to be excessively wasted, and water resources are saved.
Further, the method comprises the following steps:
in an alternative embodiment, the water diversion ring 214 is shaped such that it is mounted around the heading drill 1 and the water jet heads 216 are disposed at equal angles on the face of the heading drill 1.
In this embodiment: the tunneling drilling machine 1 can be guaranteed to have enough moisture to conduct dust settling work around the working process.
Further, the method comprises the following steps:
in an optional embodiment, the angle adjusting assembly 3 is further arranged on one side of the spraying assembly 2, the angle adjusting assembly 3 comprises a power gear 31, a rack 32, a displacement ring 33, an angle adjusting strip 34, a stress gear 35 and a stabilizer 36, one end of the power gear 31 is rotatably connected with the surface of the tunneling drilling machine 1, the surface of the power gear 31 is meshed with the rack 32, one end of the rack 32 is fixedly connected with the surface of the displacement ring 33, the other side surface of the displacement ring 33 is fixedly connected with the angle adjusting strip 34, the surface of the angle adjusting strip 34 is meshed with the stress gear 35, the stabilizer 36 is arranged on one side of the stress gear 35, one end of the stabilizer 36 is fixedly connected with the surface of the tunneling drilling machine 1, and the other end of the stabilizer 36 is rotatably connected with the water spraying head 216.
In this embodiment: when the spraying angle of the water spraying head 216 needs to be adjusted, the power gear 31 on the tunneling drilling machine 1 can be rotated, so that the power gear 31 is meshed with the rack 32 and drives the displacement ring 33 to slide on the surface of the tunneling drilling machine 1, meanwhile, the displacement ring 33 pulls the angle adjusting bar 34, the angle adjusting bar 34 is meshed with the stressed gear 35 below the water spraying head 216, and meanwhile, the stressed gear 35 drives the water spraying head 216 to rotate around the connecting point of the stabilizer 36 and the water spraying head 216, so that the purpose of adjusting the spraying angle is achieved.
Further, the method comprises the following steps:
in an alternative embodiment, the diameter of the inner surface of the displacement ring 33 is equal to the diameter of the ripper drill 1.
In this embodiment: the displacement ring 33 can effectively slide on the surface of the tunneling drilling machine 1, and the subsequent adjustment work of the angle of the water spray head 216 is facilitated.
Further, the method comprises the following steps:
in an alternative embodiment the angular bars 34 are equiangularly arranged on the surface of the displacement ring 33.
In this embodiment: the water can be sprayed from multiple angles when the tunneling drilling machine 1 works, the efficiency of dust fall work is guaranteed, and air in a working environment is not polluted.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a dust device is used in colliery tunnelling, includes tunnelling rig (1), its characterized in that: the dust-proof spraying component (2) is arranged above the tunneling drilling machine (1) and used for preventing dust, and the angle adjusting component (3) is arranged on the outer side of the tunneling drilling machine (1) and used for adjusting the angle;
the spraying assembly (2) comprises a motor (21), a transmission rod (22), a push rod (23), a stabilizing sleeve (24), a piston valve (25), a water storage bin (26), a water inlet pipe (27), a water inlet spring (28), a water inlet plug (29), a water outlet cabin (210), a water outlet spring (211), a water outlet plug (212), a water outlet pipe (213), a water distribution ring (214), a water supply pipe (215) and a water spray head (216), wherein the surface of the motor (21) is connected with one end of the transmission rod (22) in a rotating manner, the other end of the transmission rod (22) is connected with one end of the push rod (23) in a rotating manner, the surface of the push rod (23) is connected with the inner surface of the stabilizing sleeve (24) in a sliding manner, one end of the stabilizing sleeve (24), which is far away from the push rod (23), is fixedly connected with the surface of the tunneling drilling machine (1), and the other end of the push rod (23) is fixedly connected with the surface of the piston valve (25), the surface of the piston valve (25) is in sliding connection with the inner surface of the water storage bin (26), the surface of the water storage bin (26) is fixedly connected with the water inlet pipe (27), the inner surface of the water storage bin (26) is connected with the surface of the water inlet plug (29) in a combined manner, the surface of the water inlet plug (29) is fixedly connected with one end of the water inlet spring (28), the other end of the water inlet spring (28) is fixedly connected with the inner surface of the water storage bin (26), the water outlet chamber (210) is arranged below the water inlet plug (29), the inner surface of the water outlet chamber (210) is fixedly connected with one end of the water outlet spring (211), the other end of the water outlet spring (211) is fixedly connected with the surface of the water outlet plug (212), the surface of the water outlet plug (212) is fixedly connected with the water outlet chamber (210), and the water outlet pipe (213) is arranged on one side, far away from the motor (21), of the water outlet chamber (210), one end of the water outlet pipe (213) is fixedly connected with the water storage bin (26), the other end of the water outlet pipe (213) is fixedly connected with the water distribution ring (214), the water distribution ring (214) is fixedly connected with the surface of the tunneling drilling machine (1), one side, away from the water outlet cabin (210), of the water distribution ring (214) is fixedly connected with one end of the water supply pipe (215), the other end of the water supply pipe (215) is fixedly connected with the water spray head (216), and the water spray head (216) is arranged on the surface of the tunneling drilling machine (1).
2. The dust fall device for coal mine excavation according to claim 1, characterized in that: the length of the transmission rod (22) is larger than the linear distance between the push rod (23) and the motor (21).
3. The dust fall device for coal mine excavation according to claim 1, characterized in that: the water inlet plug (29) and the water outlet plug (212) face the inside and the outside of the water storage bin (26) respectively.
4. The dust fall device for coal mine excavation according to claim 1, characterized in that: the water distribution ring (214) is annularly arranged around the tunneling drilling machine (1), and the water spray heads (216) are arranged on the surface of the tunneling drilling machine (1) at equal angles.
5. The dust fall device for coal mine excavation according to claim 1, characterized in that: an angle adjusting component (3) is further arranged on one side of the spraying component (2), the angle adjusting component (3) comprises a power gear (31), a rack (32), a displacement ring (33), an angle adjusting strip (34), a stressed gear (35) and a stabilizer (36), one end of the power gear (31) is rotatably connected with the surface of the tunneling drilling machine (1), the surface of the power gear (31) is meshed with the rack (32), one end of the rack (32) is fixedly connected with the surface of the displacement ring (33), the other side surface of the displacement ring (33) is fixedly connected with the angle adjusting strip (34), the surface of the angle adjusting strip (34) is meshed with the stressed gear (35), the stabilizer (36) is arranged on one side of the stressed gear (35), and one end of the stabilizer (36) is fixedly connected with the surface of the tunneling drilling machine (1), the other end of the stabilizer (36) is rotatably connected with the sprinkler head (216).
6. The dust fall device for coal mine excavation according to claim 5, characterized in that: the diameter of the inner surface of the displacement ring (33) is equal to the diameter of the boring drill (1).
7. The dust suppression device for coal mine tunneling according to claim 5, characterized in that: the angle adjusting bars (34) are arranged on the surface of the displacement ring (33) at equal angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122360913.2U CN216477348U (en) | 2021-09-28 | 2021-09-28 | Dust device for coal mine tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122360913.2U CN216477348U (en) | 2021-09-28 | 2021-09-28 | Dust device for coal mine tunneling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216477348U true CN216477348U (en) | 2022-05-10 |
Family
ID=81437691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122360913.2U Expired - Fee Related CN216477348U (en) | 2021-09-28 | 2021-09-28 | Dust device for coal mine tunneling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216477348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142845A (en) * | 2022-07-06 | 2022-10-04 | 中煤科工集团重庆研究院有限公司 | Coal and gas outburst prevention and control device for mine |
-
2021
- 2021-09-28 CN CN202122360913.2U patent/CN216477348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142845A (en) * | 2022-07-06 | 2022-10-04 | 中煤科工集团重庆研究院有限公司 | Coal and gas outburst prevention and control device for mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101660391B (en) | Radial horizontal drilling device | |
| CN103924925B (en) | Method and device for increasing coal seam air permeability by hydraulic jet self-propelled drilling | |
| CN205605209U (en) | Multi -functional coal seam scour protection efflux drilling joint -cutting shower nozzle | |
| CN113445915B (en) | Hydraulic deflecting directional drilling device and method | |
| CN105545306A (en) | Mountain cutting and rock drilling tunnel stone splitting machine | |
| CN102094668A (en) | High-pressure hydraulic drilling, pressure releasing and protrusion removing method for upper drainage roadway | |
| CN112228028A (en) | A remote control high-efficiency hydraulic cutting coal seam anti-permeability device and construction method | |
| CN103527189A (en) | High-pressure water drilling and cutting integrated machine | |
| CN216477348U (en) | Dust device for coal mine tunneling | |
| CN202325239U (en) | Hydraulic jet radial drilling device | |
| CN106522843B (en) | A kind of drilling hydraulic drive oscillator and using method | |
| CN219139055U (en) | Colliery mechanical exploitation equipment with dust fall structure | |
| CN106837171B (en) | A kind of compact reservoir radial direction boring means external member | |
| CN203603900U (en) | High-pressure water drilling and cutting integrated machine | |
| CN205370442U (en) | Drill jumbo | |
| CN203891754U (en) | Rear-impact self-propelled anchoring device | |
| CN103410442A (en) | Full hydraulic crawler-type drilling machine with high rotation speed for coal mines | |
| CN102518398B (en) | Self-advancing type high-pressure jet sprayer for radial horizontal well drilling | |
| CN203559780U (en) | Drilling and cutting integrated drill for mining | |
| CN103132907B (en) | A kind of gear wheel down-the-hole mixing is crept into drilling tool and is comprised the gear wheel down-the-hole drill of this drilling tool | |
| CN203383731U (en) | Push pointing type rotary guide well drilling device | |
| CN102261224A (en) | Dragging-type screen hole breast wall drill bit | |
| CN202181848U (en) | Dragging type sieve mesh wall protection drill bit | |
| CN204591122U (en) | A kind of rock drilling boring bar tool | |
| CN107288588B (en) | Abrasive perforating tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |