CN211397440U - Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction - Google Patents

Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction Download PDF

Info

Publication number
CN211397440U
CN211397440U CN201921954392.XU CN201921954392U CN211397440U CN 211397440 U CN211397440 U CN 211397440U CN 201921954392 U CN201921954392 U CN 201921954392U CN 211397440 U CN211397440 U CN 211397440U
Authority
CN
China
Prior art keywords
fixedly connected
drilling
rigid coupling
pipeline
nut
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.)
Active
Application number
CN201921954392.XU
Other languages
Chinese (zh)
Inventor
秦江波
李建军
原振中
亢竑程
郑伟
常志坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201921954392.XU priority Critical patent/CN211397440U/en
Application granted granted Critical
Publication of CN211397440U publication Critical patent/CN211397440U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to a colliery is coal road tunnelling drilling construction outburst prevention device in pit, including mounting bracket, adjusting part, drilling subassembly and getter device, the adjusting part rigid coupling is on the mount table, the support rotates with the adjusting part to be connected and the rigid coupling is on drilling subassembly, gear and pointer rigid coupling are on the support, first sliding plate rigid coupling is in adjusting the seat and be equipped with first recess, first slider slides in first recess and sets up, the rack rigid coupling is on first slider, rack and gear engagement, first nut rigid coupling is on first sliding plate, screw rod right-hand member spiro union advances first nut and rotates with the rack left end to be connected; the drilling assembly is fixedly connected to the adjusting assembly, and the air suction assembly is arranged on the base; the utility model discloses installation adjusting part, according to the angle that marks on the directional regulation seat of pointer, the angle of seeing out drill bit and mount table directly perceived, accurate adjustment drill bit angle, the installation subassembly of breathing in reduces gas and accumulates in the well drilling, improves operating personnel life health.

Description

Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction
Technical Field
The utility model relates to a colliery is tunnelling drilling construction technical field in the pit, concretely relates to colliery is colliery in coal road tunnelling drilling construction prevents suddenly device.
Background
Coal and gas outburst is a type of special gas outburst phenomenon, namely, a phenomenon that broken coal and gas are suddenly sprayed to a mining space from the coal body in large quantities under the action of pressure. Coal and gas outburst is a strong natural disaster in underground coal mine production, seriously threatens the safe production of the coal mine, has great destructiveness, and is beneficial to preventing outburst by extracting the coal and the gas in the drilling process.
In chinese utility model with patent number CN209457872U, a drilling equipment is adopted in coal mining is disclosed, including PMKD, PMKD's bottom is fixed with four groups and removes the wheel, PMKD's bottom is provided with supporting baseplate, be connected with first lift cylinder and coupling spring between supporting baseplate and the PMKD, PMKD's top four corners is fixed with the lift guide pillar respectively, PMKD's top is provided with lift platform, be connected with second lift cylinder between lift platform and the PMKD, be fixed with two sets of movable guide rails on the lift platform, it is two sets of movable guide rails are parallel to each other sets up, and the device can not adjust the angle of drill bit, can only adjust the height of drill bit, can not satisfy the angle demand of mine drilling.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the above-mentioned problem among the prior art, provide a colliery is coal road tunnelling drilling construction outburst prevention device of efficient more simple and easy
The utility model relates to a coal mine underground coal roadway tunneling drilling construction outburst prevention device, which comprises a mounting frame, an adjusting component, a drilling component and an air suction component;
the mounting frame comprises a base, rollers, a hydraulic telescopic rod, a mounting table and a handle, wherein the rollers are arranged at the bottom of the base, the hydraulic telescopic rod is fixedly connected to the upper side surface of the base, the handle is fixedly connected to the left end of the upper side surface of the base, and the mounting table is fixedly connected to the top end of the hydraulic telescopic rod;
the adjusting assembly comprises an adjusting seat, a gear, a first mounting rod, a second mounting rod, a rack, a bracket, a pointer, a first sliding plate, a first nut, a first sliding block and a screw rod;
the adjusting seat is fixedly connected to the mounting table, an angle scale is marked on the front side of the adjusting seat, the support is arranged on the front side and the rear side of the adjusting seat and is rotatably connected with the adjusting seat through a first mounting rod, the support is fixedly connected to the bottom of the drilling assembly, and a sight hole is formed in the support; the gear is fixedly connected to the support through the second mounting rod, the pointer is fixedly connected to the inside of the sight hole, the first sliding plate is fixedly connected to the front side face of the adjusting seat, a first groove is formed in the upper side face of the first sliding plate, the first sliding block is arranged in the first groove in a sliding mode, the rack is fixedly connected to the first sliding block, the rack is meshed with the gear for use, the first nut is fixedly connected to the left end of the upper side face of the first sliding plate, and the right end of the screw rod is screwed into the first nut and is rotatably connected with the left end of the rack.
The drilling assembly is fixedly connected to the adjusting assembly, and the air suction assembly is arranged on the base.
Further, the drilling assembly comprises a second sliding plate, a fixed block, a second sliding block, a second nut, a driving motor, a drill bit, a screw rod and a crank;
the second sliding plate is fixedly connected to the top end of the support, a second groove is formed in the upper side face of the second sliding plate, the fixed block is fixedly connected to the right end of the upper side face of the second sliding plate, the second sliding block is arranged in the second groove in a sliding mode, and the bottom of the second nut is fixedly connected to the second sliding block; the driving motor is fixedly connected to the top of the second nut, the drill bit is fixedly connected with the output end of the driving motor, one end of the screw rod is screwed into the second nut and is rotatably connected with the fixed block, and the other end of the screw rod is fixedly connected with the crank.
Furthermore, the air suction assembly comprises an air draft cover, an air conveying pipeline, an ash discharge pipeline, a filter screen, an ash discharge pipe plug and an exhaust fan;
the utility model discloses a dust extraction device, including fixed block, fan cover, wind transmission pipeline, ash discharge pipe plug, filter screen rigid coupling, fan cover rigid coupling is at the fixed block top, and the fan cover is about the open cover body, wind transmission pipeline rigid coupling switches on in the fan cover left side and with the fan cover right side, the ash discharge pipeline is the U-shaped pipeline, and ash discharge pipeline one end switches on the rigid coupling with wind transmission pipeline, and the other end switches on the rigid coupling with the wind transmission pipeline of air exhauster, and ash discharge pipeline bottom is equipped with the ash discharge mouth, the ash discharge pipe plug passes through ash discharge mouth spiro union in ash discharge pipeline bottom, the filter screen rigid coupling is in ash.
Furthermore, the right end of the air draft cover and the right end of the drill bit are on the same vertical surface, and the air draft cover is not in contact with the drill bit.
Further, the roller is a shock-absorbing universal wheel.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses installation adjusting part not only can adjust the angle of drill bit, and operating personnel reads out the angle of drill bit and mount table according to the angle that marks on the directional regulation seat of pointer moreover to accurate adjusting the drill bit angle easy operation.
2. The utility model discloses the installation subassembly of breathing in is to the gas of the leakage that probably exists among the drilling process, and the processing of breathing in reduces gas accumulation in the well drilling, improves operating personnel life health.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the outburst prevention device for coal roadway excavation and drilling construction in a coal mine;
FIG. 2 is a schematic diagram illustrating the adjustment assembly of FIG. 1;
fig. 3 is a schematic left side view of the adjustment assembly of fig. 1.
The reference numbers are as follows:
1-mounting frame, 101-base, 102-roller, 103-hydraulic telescopic rod, 104-clamping groove, 104-mounting table, 105-handle, 2-adjusting component, 201-adjusting seat, 202-gear, 203-first mounting rod, 204-second mounting rod, 205-rack, 206-bracket, 2061-sight hole, 207-pointer, 208-first sliding plate, 2081-first groove, 209-first nut, 210-first sliding block, 211-screw, 3-drilling component, 301-second sliding plate, 302-fixing block, 303-second sliding block, 304-second nut, 305-driving motor, 306-drill bit, 307-screw rod, 308-crank, 4-air suction component, 401-air suction cover, 402-wind conveying pipeline, 403-ash discharging pipeline, 4031-ash discharging port, 404-filter screen, 405-ash discharging pipe plug and 406-exhaust fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, the outburst prevention device for coal mine underground coal roadway tunneling and drilling construction comprises an installation frame 1, an adjusting assembly 2, a drilling assembly 3 and an air suction assembly 4;
the mounting rack 1 comprises a base 101, rollers 102, a hydraulic telescopic rod 103, a mounting table 104 and a handle 105, wherein the rollers 102 are arranged at the bottom of the base 101, the hydraulic telescopic rod 103 is fixedly connected to the upper side of the base 101, the handle 105 is fixedly connected to the left end of the upper side of the base 101, and the mounting table 104 is fixedly connected to the top end of the hydraulic telescopic rod 103;
the adjusting assembly 2 comprises an adjusting seat 201, a gear 202, a first mounting rod 203, a second mounting rod 204, a rack 205, a bracket 206, a pointer 207, a first sliding plate 208, a first nut 209, a first sliding block 210 and a screw 211;
the adjusting seat 201 is fixedly connected to the mounting table 104, an angle scale is marked on the front side of the adjusting seat 201, the support 206 is arranged on the front side and the rear side of the adjusting seat 201 and is rotatably connected with the adjusting seat 201 through the first mounting rod 203, the support 206 is fixedly connected to the bottom of the drilling assembly 3, and the support 206 is provided with a sight hole 2061; the gear 202 is fixedly connected to the bracket 206 through the second mounting rod 204, the pointer 207 is fixedly connected to the viewing hole 2061, the first sliding plate 208 is fixedly connected to the front side surface of the adjusting seat 201, the first sliding plate 208 is provided with a first groove 2081 on the upper side surface, the first sliding block 210 is slidably arranged in the first groove 2081, the rack 205 is fixedly connected to the first sliding block 210, the rack 205 is engaged with the gear 202 for use, the first nut 209 is fixedly connected to the left end of the upper side surface of the first sliding plate 208, and the right end of the screw 211 is screwed into the first nut 209 and rotatably connected with the left end of the rack 205.
The drilling assembly 3 is fixedly connected to the adjusting assembly 2, and the air suction assembly 4 is arranged on the base 101.
The drilling assembly 3 comprises a second sliding plate 301, a fixed block 302, a second sliding block 303, a second nut 304, a driving motor 305, a drill bit 306, a screw rod 307 and a crank 308;
the second sliding plate 301 is fixedly connected to the top end of the bracket 206, a second groove 3011 is arranged on the upper side surface of the second sliding plate 301, the fixed block 302 is fixedly connected to the right end of the upper side surface of the second sliding plate 301, the second sliding block 303 is arranged in the second groove 3011 in a sliding manner, and the bottom of the second nut 304 is fixedly connected to the second sliding block 303; the driving motor 305 is fixedly connected to the top of the second nut 304, the drill 306 is fixedly connected to the output end of the driving motor 305, one end of the screw 307 is screwed into the second nut 304 and rotatably connected to the fixed block 302, and the other end is fixedly connected to the crank 308.
The air suction assembly 4 comprises an air draft cover 401, an air conveying pipeline 402, an ash discharge pipeline 403, a filter screen 404, an ash discharge pipe plug 405 and an exhaust fan 406; the air draft cover 401 is fixedly connected to the top of the fixed block 302, and the air draft cover 401 is a cover body with left and right openings; the air delivery pipeline 402 is a soft pipeline, so that the air delivery pipeline 402 is prevented from blocking the drill 306 to adjust the angle, the air delivery pipeline 402 is fixedly connected to the left side of the exhaust hood 401 and is communicated with the right side of the exhaust hood 401, the ash discharge pipeline 403 is a U-shaped hard pipeline, which is beneficial to retaining coal ash at the bottom of the U-shaped pipeline when extracting gas, so as to discharge coal ash conveniently, one end of the ash discharge pipeline 403 is fixedly connected with the air delivery pipeline 402, the other end of the ash discharge pipeline is fixedly connected with the air exhaust pipeline of the exhaust fan 406, an ash discharge port 4031 is arranged at the bottom end of the ash discharge pipeline 403, an ash discharge pipe plug 405 is screwed at the bottom end of the ash discharge pipeline 403 through an ash discharge port 4031, a filter screen 404 is fixedly connected at the joint of the ash discharge.
The right end of the draft hood 401 and the right end of the drill bit 306 are on the same vertical plane, and the draft hood 401 is not in contact with the drill bit 306, so that the drill bit 306 is prevented from being blocked by the draft hood 401 in the rotation process.
The damping universal wheel is characterized in that the device is easily bumpy and damaged due to the fact that the ground is uneven in a mine, the device is moved in the mine, and the damping universal wheel of M5-8579 and 949S manufactured by Tanzhou Ming foot-wheel manufacturing company Limited is used as the roller 102 to play a damping role for the device.
The working principle is as follows:
when the device is used, the handle 105 is held by hand to push the device to a destination, a drilling angle is determined, the screw 211 is rotated, the screw 211 moves back and forth on the first sliding plate 208, the rack 205 is pushed to move back and forth, the gear 202 meshed with the rack 205 rotates, the bracket 206 fixedly connected with the gear 202 rotates to drive the drill bit 306 to rotate, and therefore the angle of the drill bit 306 is adjusted to the angle of drilling required; an angle scale of 0-180 degrees is marked on the front side of the adjusting table 201 clockwise, the screw 211 is rotated to enable the screw 211 to move forwards, the rack 205 is pushed to move forwards, the gear 202 is driven to rotate clockwise, the bracket 206 rotates clockwise to drive the left end of the drill bit 306 to move downwards, the right end of the drill bit 306 moves upwards, the angle marked on the adjusting table 201 by the pointer 207 pointing is observed through the sight hole 2061, and the pointing angle is the included angle between the left side of the drill bit 306 and the mounting table 104; the screw 211 is rotated to enable the screw 211 to move backwards, the rack 205 is pushed to move backwards, the gear 202 is driven to rotate anticlockwise, the support 206 rotates anticlockwise to drive the right end of the drill bit 306 to move downwards, the left end of the drill bit 306 moves upwards, the angle marked on the adjusting table 201 pointed by the pointer 207 is observed through the sight 2061, the pointed angle is the included angle between the right side of the drill bit 306 and the mounting table 104, the drill bit 306 is adjusted to a proper angle according to the drilling angle, and the drill bit 306 is adjusted to a proper height by controlling the hydraulic telescopic rod 103.
After the angle of the drill bit 306 is adjusted, the driving motor 305 is driven and the exhaust fan 406 is started, the drill bit 306 fixedly connected with the output end of the driving motor 305 rotates, the crank 308 is rotated to drive the screw rod 307 to rotate, the second nut 304 screwed with the screw rod 307 moves forwards on the screw rod 307 to drive the driving motor 305 to move forwards, so that the drill bit 306 moves forwards to drill a hole, coal ash and gas possibly leaked out during the drilling process are generated, the exhaust fan 406 sucks the air conveying pipeline 402 through the air draft cover 401, and finally discharges the coal ash into the gas collecting device through the ash discharge pipeline 403, the coal ash entering the ash discharge pipeline 403 is intercepted by the filter screen 404 when passing through the ash discharge pipeline 403 together with the gas to prepare for passing through the air draft pipeline of the exhaust fan 406, and finally accumulates at the ash discharge port 4031, and after the drilling is finished, the ash discharge pipe plug 405 is taken down, and the coal ash accumulated in the ash discharge pipeline.
The hydraulic telescopic rod 103 and the driving motor 305 are externally connected with a power supply, the control mode is common knowledge, and detailed description is not provided in the specification.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. The utility model provides a colliery is coal road tunnelling drilling construction outburst prevention device which characterized in that: the device comprises a mounting frame (1), an adjusting assembly (2), a drilling assembly (3) and an air suction assembly (4);
the mounting rack (1) comprises a base (101), rollers (102), a hydraulic telescopic rod (103), a mounting table (104) and a handle (105), wherein the rollers (102) are arranged at the bottom of the base (101), the hydraulic telescopic rod (103) is fixedly connected to the upper side surface of the base (101), the handle (105) is fixedly connected to the left end of the upper side surface of the base (101), and the mounting table (104) is fixedly connected to the top end of the hydraulic telescopic rod (103);
the adjusting assembly (2) comprises an adjusting seat (201), a gear (202), a first mounting rod (203), a second mounting rod (204), a rack (205), a bracket (206), a pointer (207), a first sliding plate (208), a first nut (209), a first sliding block (210) and a screw (211);
the adjusting seat (201) is fixedly connected to the mounting table (104), an angle scale is marked on the front side of the adjusting seat (201), the support (206) is arranged on the front side and the rear side of the adjusting seat (201) and is rotatably connected with the adjusting seat (201) through a first mounting rod (203), the support (206) is fixedly connected to the bottom of the drilling assembly (3), and a sight hole (2061) is formed in the support (206); the gear (202) is fixedly connected to the bracket (206) through a second mounting rod (204), the pointer (207) is fixedly connected to the inside of the sight hole (2061), the first sliding plate (208) is fixedly connected to the front side face of the adjusting seat (201), a first groove (2081) is formed in the upper side face of the first sliding plate (208), the first sliding block (210) is arranged in the first groove (2081) in a sliding mode, the rack (205) is fixedly connected to the first sliding block (210), the rack (205) is meshed with the gear (202) for use, the first nut (209) is fixedly connected to the left end of the upper side face of the first sliding plate (208), and the right end of the screw rod (211) is screwed into the first nut (209) and is rotatably connected with the left end of the rack (205);
drilling subassembly (3) rigid coupling is on adjusting part (2), subassembly (4) of breathing in sets up on base (101).
2. The coal mine underground coal roadway tunneling and drilling construction outburst prevention device according to claim 1, which is characterized in that: the drilling assembly (3) comprises a second sliding plate (301), a fixed block (302), a second sliding block (303), a second nut (304), a driving motor (305), a drill bit (306), a screw rod (307) and a crank (308);
the second sliding plate (301) is fixedly connected to the top end of the support (206), a second groove (3011) is formed in the upper side face of the second sliding plate (301), the fixed block (302) is fixedly connected to the right end of the upper side face of the second sliding plate (301), the second sliding block (303) is arranged in the second groove (3011) in a sliding mode, and the bottom of the second nut (304) is fixedly connected to the second sliding block (303); the driving motor (305) is fixedly connected to the top of the second nut (304), the drill bit (306) is fixedly connected with the output end of the driving motor (305), one end of the screw rod (307) is screwed into the second nut (304) and is rotatably connected with the fixed block (302), and the other end of the screw rod is fixedly connected with the crank (308).
3. The coal mine underground coal roadway tunneling and drilling construction outburst prevention device according to claim 2, which is characterized in that: the air suction assembly (4) comprises an air suction cover (401), an air conveying pipeline (402), an ash discharge pipeline (403), a filter screen (404), an ash discharge pipe plug (405) and an exhaust fan (406);
suction hood (401) rigid coupling is at fixed block (302) top, and open cover body about suction hood (401) is, defeated wind pipeline (402) rigid coupling switches on in suction hood (401) left side and with suction hood (401) right side, dust exhaust pipeline (403) are the U-shaped pipeline, and dust exhaust pipeline (403) one end switches on the rigid coupling with defeated wind pipeline (402), and the other end switches on the rigid coupling with the suction pipeline of air exhauster (406), and dust exhaust pipeline (403) bottom is equipped with dust exhaust mouth (4031), dust exhaust pipe plug (405) are through dust exhaust mouth (4031) spiro union in dust exhaust pipeline (403) bottom, filter screen (404) rigid coupling is in dust exhaust pipeline (403) and air exhauster (406) junction, air exhauster (406) pipeline is connected with external gas collection device.
4. The coal mine underground coal roadway tunneling, drilling and construction outburst prevention device according to claim 3, which is characterized in that: the right end of the draught hood (401) and the right end of the drill bit (306) are on the same vertical surface, and the draught hood (401) is not in contact with the drill bit (306).
5. The coal mine underground coal roadway tunneling and drilling construction outburst prevention device according to claim 1, which is characterized in that: the roller (102) is a shock-absorbing universal wheel.
CN201921954392.XU 2019-11-13 2019-11-13 Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction Active CN211397440U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921954392.XU CN211397440U (en) 2019-11-13 2019-11-13 Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921954392.XU CN211397440U (en) 2019-11-13 2019-11-13 Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction

Publications (1)

Publication Number Publication Date
CN211397440U true CN211397440U (en) 2020-09-01

Family

ID=72212160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921954392.XU Active CN211397440U (en) 2019-11-13 2019-11-13 Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction

Country Status (1)

Country Link
CN (1) CN211397440U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113073936A (en) * 2021-03-26 2021-07-06 中国地质调查局西安地质调查中心(西北地质科技创新中心) Drilling pushing structure and iron ore boundary detection device
CN114320299A (en) * 2021-11-17 2022-04-12 镇康县振兴矿业开发有限责任公司 Method and device for reducing mixing rate of mining waste rocks of small river siderite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113073936A (en) * 2021-03-26 2021-07-06 中国地质调查局西安地质调查中心(西北地质科技创新中心) Drilling pushing structure and iron ore boundary detection device
CN114320299A (en) * 2021-11-17 2022-04-12 镇康县振兴矿业开发有限责任公司 Method and device for reducing mixing rate of mining waste rocks of small river siderite
CN114320299B (en) * 2021-11-17 2024-04-09 镇康县振兴矿业开发有限责任公司 Method and device for reducing mixing rate of waste rock in mining of small river siderite

Similar Documents

Publication Publication Date Title
CN211397440U (en) Outburst prevention device for coal mine underground coal roadway tunneling and drilling construction
CN116104560A (en) Underground intelligent ventilation monitoring system for coal mine
CN102383798A (en) Tunneller for integrated wet type dust removal device
CN111946381A (en) Working face air adjusting device for underground tunneling of coal mine
CN217950331U (en) Hole spraying prevention device for coal mine drilling
CN217872663U (en) Multifunctional drilling machine with balance weight
CN108149726B (en) Loader with metering function
CN213741265U (en) Energy-concerving and environment-protective type excavator with solar energy auxiliary power supply
CN216198068U (en) Coal mine electromechanical equipment for coal mining
CN114575916A (en) Coal mine gas adsorption device
CN112302647A (en) Environment-friendly coal mining drilling machine for coal mining
CN112576252A (en) Multi-drill mining trolley for mining of mine tunnel coal mine
CN217976289U (en) Coal mining is with ventilation equipment's dustproof air inlet cover
CN213540370U (en) Multifunctional drill rod for underground survey
CN211573577U (en) Dust falling device for coal mining of coal mine
CN213654911U (en) Drainage device for coal mine mining area
CN216781834U (en) Tool bit assembly of dredging robot of coal conveying system
CN219953425U (en) Dust fall spraying fan for mining
CN114812324B (en) Blast hole charging device for explosive field mixed loading
CN110005335A (en) It is a kind of that a grade adjustable hydraulic rock drill is rushed based on vibratory impulse
CN219472146U (en) Quarry watering lorry
CN216110806U (en) Novel mining cold-resistant malleation dryer
CN112127952B (en) Mine emergency rescue equipment
CN219705678U (en) Pore-forming device for fine-assembling repair engineering convenient for collecting dust
CN216095369U (en) Coal conveying system dredging robot

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant