CN110541728A - Air-water pumping linkage device for guaranteeing safe drilling construction - Google Patents
Air-water pumping linkage device for guaranteeing safe drilling construction Download PDFInfo
- Publication number
- CN110541728A CN110541728A CN201910971288.XA CN201910971288A CN110541728A CN 110541728 A CN110541728 A CN 110541728A CN 201910971288 A CN201910971288 A CN 201910971288A CN 110541728 A CN110541728 A CN 110541728A
- Authority
- CN
- China
- Prior art keywords
- supply system
- air
- water
- air supply
- water supply
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000005553 drilling Methods 0.000 title claims abstract description 79
- 238000010276 construction Methods 0.000 title claims abstract description 62
- 238000005086 pumping Methods 0.000 title claims abstract description 22
- 238000000605 extraction Methods 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 18
- 230000002159 abnormal effect Effects 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims description 10
- 239000003245 coal Substances 0.000 claims description 8
- 239000011435 rock Substances 0.000 claims description 7
- 230000036541 health Effects 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000011010 flushing procedure Methods 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
an air and water pumping linkage device for guaranteeing safe drilling construction can solve the technical problem that gas is easy to leak in the drilling construction process in the prior art to cause disasters. The system comprises an extraction system, an air supply system, a water supply system, a drilling machine cooling system, an orifice dust removal system and a compressed air self-rescue device; the air supply system and the water supply system are provided by an air supply system and a water supply system in the roadway and are conveyed to a drilling construction site through a high-pressure hose connected with the air supply system and the water supply system; then, a water braid is adopted to connect the high-pressure hose and the drill rod, and the air supply system and the water supply system enter the hole through the drill rod; the air supply system, the water supply system and the extraction system are connected by a mechanical connecting rod to realize linkage. According to the embodiment of the invention, after gas is abnormal in the drill hole, the gas in the hole can be pumped and discharged by using the extraction system in the roadway under the condition of ensuring that the gas is not leaked to cause harm, so that the content, the pressure and the like of the gas are reduced to be below a safe horizontal line, and the safe construction is ensured.
Description
Technical Field
The invention relates to the field of sealing of various drainage drill holes of mines, in particular to an air-water drainage linkage device for guaranteeing safe construction of the drill holes.
background
A large amount of gas control and geological exploration drilling holes need to be constructed in the coal mine production process, and the method is used for exploring geological structures, eliminating gas disasters and guaranteeing safe production of mines. However, the sites needing drilling construction are often areas with unclear geological conditions and unknown gas occurrence, and the sites are the most serious places of gas disasters, so that the drilling construction process faces serious threats.
After the gas is abnormal in the drilling construction process, the conventional measures are to block a drilling hole opening to prevent the gas from leaking to cause damage, then air supply and water supply connected with a water braid at the rear part of a drill rod are removed, then an extraction system is connected to pump and release the gas in the hole, and the gas often leaks through the drill rod to cause disasters in the period.
disclosure of Invention
the invention provides an air-water pumping linkage device for guaranteeing safe drilling construction, which can solve the technical problem that gas is easy to leak out and disasters are caused in the drilling construction process in the prior art.
in order to achieve the purpose, the invention adopts the following technical scheme:
a wind and water pumping linkage device for guaranteeing safe construction of a drill hole comprises a pumping system, an air supply system, a water supply system, a drill cooling system, an orifice dust removal system and a compressed air self-rescue device;
The air supply system and the water supply system are provided by an air supply system and a water supply system in the roadway and are conveyed to a drilling construction site through a high-pressure hose connected with the air supply system and the water supply system; then, a water braid is adopted to connect the high-pressure hose and the drill rod, and the air supply system and the water supply system enter the hole through the drill rod;
Wherein the content of the first and second substances,
the air supply system, the water supply system and the extraction system are connected by adopting a mechanical connecting rod to realize linkage;
The extraction system and the compressed air self-rescue device are personal safety guarantee systems for borehole construction, the borehole is in a closed state in normal construction process, the extraction system is used when gas in the borehole is abnormal, the gas in the borehole is extracted and released by the extraction system, and the compressed air self-rescue device provides fresh breathing air flow for constructors, so that personal safety is guaranteed;
The air supply system and the water supply system are drilling construction slag discharge systems, air or water is supplied into the hole through the drill rod in the drilling construction process and is used for removing coal rock slag in the hole, and only one of the drill holes is in an open state during normal construction;
The drilling machine cooling system is an equipment safety guarantee system and is used for cooling the drilling machine and is always in an open state in the drilling construction process;
The orifice dust removal system is an occupational health guarantee system, and when air supply is adopted for deslagging in drilling, the coal rock slag returned from the orifice is prevented from causing high dust concentration in air, and the orifice dust removal system is always in an open state in the drilling construction process.
according to the technical scheme, the air-water pumping linkage device for guaranteeing the safe construction of the drill hole needs to adopt air supply or water supply as a flushing medium during the drilling construction, and coal rock slag and the like in the hole are removed; wind and water are provided by a wind and water supply system in the roadway, are conveyed to a drilling construction position through a high-pressure hose connected with the wind and water supply system, and then are connected with the high-pressure hose and a drill rod through a water braid, and the wind and the water enter the hole through the drill rod. The device utilizes materials such as stop valve, 6 minutes iron pipe, 2 cun iron pipe to make into a confined aggregate unit, connects air feed, water supply, drainage system and water pigtail in the tunnel through high-pressure hose connection, and air feed, water supply and drainage system adopt mechanical connecting rod to connect and realize the linkage. When gas is abnormal in the drilling construction process, the stop valve is closed to stop supplying air or water into the hole, so that the gas in the hole is prevented from being accelerated to leak outwards under the drive of the air and the water to cause damage; meanwhile, due to linkage of the air supply system, the water supply system and the extraction system, the extraction system can be synchronously opened when the air supply system and the water supply system are closed, so that the gas in the holes can be controllably extracted and discharged under the condition of no leakage channel, and the harm of the gas is eliminated.
The invention has the following beneficial effects:
(1) The device adopts common stop valve, 6 to divide common materials such as iron pipe, 2 pipe iron pipes to process, and not only the material is simple, with low costs, and easy processing easily uses widely.
(2) the air supply system, the water supply system and the extraction system are in mechanical linkage, so that the operation is simple and the operation is convenient to master.
(3) The device has effectively utilized the mobility of gas, mainly reveals the passageway with it and carries out make full use of, guaranteeing that it can't reveal under the condition that causes harm, realizes the controllable drainage to gas, has guaranteed the safe construction of drilling.
(4) In addition, the device simultaneously considers the drilling machine cooling water, the water for orifice dust removal and the compressed air self-rescue air supply required during the drilling construction, realizes integration, reduces the waste of construction materials, is simple and easy to operate, and is convenient for a user to master.
drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention.
As shown in fig. 1, the air-water pumping linkage device for guaranteeing the safe construction of the drill hole comprises a pumping system, an air supply system, a water supply system, a drill cooling system, an orifice dust removal system and a compressed air self-rescue device;
the air supply system and the water supply system are provided by an air supply system and a water supply system in the roadway and are conveyed to a drilling construction site through a high-pressure hose connected with the air supply system and the water supply system; then, a water braid is adopted to connect the high-pressure hose and the drill rod, and the air supply system and the water supply system enter the hole through the drill rod;
the air supply system, the water supply system and the extraction system are connected by a mechanical connecting rod to realize linkage.
Specifically, the extraction system and the compressed air self-rescue device in the systems are personal safety guarantee systems for drilling construction, the drill hole is in a closed state in the normal construction process and is used when gas is abnormal in the drill hole, the extraction system is used for extracting and releasing gas in the hole, and the compressed air self-rescue device provides fresh breathing air flow for constructors, so that personal safety is guaranteed; the air supply and water supply system is a drilling construction slag discharge system, air or water is supplied into the hole through the drill rod in the drilling construction process and is used for removing coal rock slag in the hole, and only one of the air supply and water supply system is in an open state during normal drilling construction. The drilling machine cooling system is an equipment safety guarantee system and is used for cooling the drilling machine and is always in an open state in the drilling construction process; the orifice dust removal system is an occupational health guarantee system, and when air supply is adopted for deslagging in drilling, the coal rock slag returned from the orifice is prevented from causing high dust concentration in air, and the orifice dust removal system is always in an open state in the drilling construction process
The following specifically illustrates embodiments of the present invention:
4. connection of each part and introduction of function
Connecting:
And the stop valve A is arranged between the mine air supply pipeline and the extraction system and is used for switching the air supply and extraction functions.
And the stop valve B is arranged between the water supply pipeline of the mine and the extraction system and is used for switching the air supply and extraction functions.
C. D, a stop valve: the device is arranged between the extraction system and the device and used for controlling whether the extraction system is opened or not.
E, a stop valve: is arranged between the water supply system and the device and is used for controlling whether the water supply system is opened or not.
F, a stop valve: and the air supply device is arranged between the air supply system and the device and is used for controlling whether the air supply system is opened or not.
g, a stop valve: and the device is arranged between the water supply system and the drilling machine cooling system and the orifice dust removal system and is used for controlling whether the drilling machine cooling system and the orifice dust removal system are opened or not.
h, a stop valve: the air supply system is arranged between the air supply system and the compressed air self-rescue device and is used for controlling whether the compressed air self-rescue device is opened or not.
I, a stop valve: and the device is arranged between the device and the drill pipe water swivel and is used for controlling whether water or air is supplied into the drill hole.
J gate valve: the device is arranged between the device and a cooling system of the drilling machine, can flexibly control the water quantity and is used for controlling whether to supply water to a cooler of the drilling machine.
k, a stop valve: is installed between the device and the drill hole device and is used for controlling whether water is supplied to the hole dust removing device or not.
The functions are as follows:
A stop valve: the air supply branch control and linkage valve is connected with the D stop valve through a movable connecting rod. Controlling the air supply flushing medium in the drilling construction, and controlling the extraction system to be opened or closed by linking a D stop valve;
B, a stop valve: the water supply branch control and linkage valve is connected with the C stop valve through a movable connecting rod. Controlling a water supply flushing medium in drilling construction, and controlling an extraction system to be opened or closed by linking a C stop valve;
c, a stop valve: and the master control valve of the extraction system is connected with the extraction system. The pumping system is controlled to be opened or closed in linkage with the stop valve B;
D, a stop valve: and the master control valve of the extraction system is connected with the extraction system. The pumping system is controlled to be opened or closed in linkage with the stop valve A;
E, a stop valve: and the water supply system master control valve is connected with the water supply system. Controlling water supply flushing medium, drilling machine cooling water and orifice dust removal water for drilling construction;
F, a stop valve: and the air supply system master control valve is connected with the air supply system. Controlling a drilling construction air supply flushing medium and a compressed air self-rescue device;
G, a stop valve: and the water supply branch control valve is connected with a drilling machine cooling and orifice dust removal system. Controlling cooling water of a drilling machine and water for removing dust at an orifice;
h, a stop valve: the air supply shunt control valve is connected with the compressed air self-rescue device. Controlling a compressed air self-rescue device;
I, a stop valve: the drilling machine water swivel main control valve is connected with the drilling machine water swivel. Controlling the total air supply, water supply and extraction of the drilling machine;
J gate valve: and the drilling machine cooling water control valve is connected with the drilling machine cooler. And controlling the amount of cooling water supply of the drilling machine.
K, a stop valve: the drill hole dust remover control valve is connected with the hole dust remover. Controlling the water supply of the orifice dust remover.
The above parts are connected by high-pressure hose and 6-part iron pipe.
the operation steps are as follows:
Before drilling construction, a high-pressure hose is respectively connected with an extraction system, an air supply system, a water supply system, a drilling machine cooling system, an orifice dust removal system and a compressed air self-rescue device.
1) during normal drilling construction
(1) air supply is adopted as a flushing medium: A. c, E, F, H, G stop valves are all in an open state, B, D stop valves are in a closed state, and the extraction system is in a closed state at the moment; the air supply is controlled by a switch I valve, and the drill rod is normally moved up and down to drill.
(2) water supply is adopted as a flushing medium: B. d, E, F, H, G stop valves are all in an open state, A, C stop valves are in a closed state, and the extraction system is in a closed state at the moment; the air supply is controlled by a switch I valve, and the drill rod is normally moved up and down to drill.
2) When gas abnormality occurs in the drilled hole
(1) Air supply is adopted as a flushing medium: and closing the valve A, sliding the movable connecting rod in the connecting rod movable groove, opening the valve D in a linkage manner, opening the extraction system at the moment, closing the air supply branch in the drilling construction, and allowing gas in the hole to enter the extraction system through the drill rod.
(2) water supply is adopted as a flushing medium: and closing the valve B, sliding the movable connecting rod in the connecting rod movable groove, opening the valve C in a linkage manner, opening the extraction system at the moment, closing the water supply branch in the drilling construction, and allowing gas in the hole to enter the extraction system through the drill rod.
In conclusion, after gas is abnormal in the drill hole, the gas in the hole can be pumped and discharged by using the pumping system in the roadway under the condition that the gas is not leaked to cause damage, the content, the pressure and the like of the gas are reduced to be below a safe horizontal line, and safe construction is guaranteed.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A wind and water pumping linkage device for guaranteeing safe construction of a drill hole comprises a pumping system, an air supply system, a water supply system, a drill cooling system, an orifice dust removal system and a compressed air self-rescue device;
The air supply system and the water supply system are provided by an air supply system and a water supply system in the roadway and are conveyed to a drilling construction site through a high-pressure hose connected with the air supply system and the water supply system; then, a water braid is adopted to connect the high-pressure hose and the drill rod, and the air supply system and the water supply system enter the hole through the drill rod;
The method is characterized in that:
the air supply system, the water supply system and the extraction system are connected by adopting a mechanical connecting rod to realize linkage;
The extraction system and the compressed air self-rescue device are personal safety guarantee systems for borehole construction, the borehole is in a closed state in normal construction process, the extraction system is used when gas in the borehole is abnormal, the gas in the borehole is extracted and released by the extraction system, and the compressed air self-rescue device provides fresh breathing air flow for constructors, so that personal safety is guaranteed;
the air supply system and the water supply system are drilling construction slag discharge systems, air or water is supplied into the hole through the drill rod in the drilling construction process and is used for removing coal rock slag in the hole, and only one of the drill holes is in an open state during normal construction;
The drilling machine cooling system is an equipment safety guarantee system and is used for cooling the drilling machine and is always in an open state in the drilling construction process;
The orifice dust removal system is an occupational health guarantee system, and when air supply is adopted for deslagging in drilling, the coal rock slag returned from the orifice is prevented from causing high dust concentration in air, and the orifice dust removal system is always in an open state in the drilling construction process.
2. The air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: and an A stop valve is arranged between the air supply pipeline of the air supply system and the extraction system and is used for switching the air supply and extraction functions.
3. The air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: and a stop valve B is arranged between a water supply pipeline of the water supply system and the extraction system and used for switching air supply and extraction functions.
4. The air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: and an C, D stop valve is arranged on the extraction system and used for controlling whether the extraction system is opened or not.
5. the air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: and the water supply system is provided with an E stop valve for controlling whether the water supply system is opened or not.
6. the air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: and an F stop valve is arranged on the air supply system and used for controlling whether the air supply system is opened or not.
7. The air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: and G stop valves are arranged among the water supply system, the drilling machine cooling system and the orifice dust removal system and are used for controlling whether the drilling machine cooling system and the orifice dust removal system are opened or not.
8. the air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: an H stop valve is arranged between the air supply system and the compressed air self-rescue device and used for controlling whether the compressed air self-rescue device is opened or not.
9. The air-water pumping linkage device for ensuring safe drilling construction according to claim 1, which is characterized in that: and the drilling machine cooling system is provided with a J gate valve for controlling the water quantity and controlling whether to supply water to the drilling machine cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910971288.XA CN110541728B (en) | 2019-10-14 | 2019-10-14 | Wind-water pumping linkage device for guaranteeing safe construction of drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910971288.XA CN110541728B (en) | 2019-10-14 | 2019-10-14 | Wind-water pumping linkage device for guaranteeing safe construction of drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110541728A true CN110541728A (en) | 2019-12-06 |
| CN110541728B CN110541728B (en) | 2024-03-15 |
Family
ID=68715781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910971288.XA Active CN110541728B (en) | 2019-10-14 | 2019-10-14 | Wind-water pumping linkage device for guaranteeing safe construction of drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541728B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202176355U (en) * | 2011-08-17 | 2012-03-28 | 安徽恒源煤电股份有限公司祁东煤矿 | Coal mine downhole drilling hole dust-reducing device |
| CN103352718A (en) * | 2013-07-29 | 2013-10-16 | 河南理工大学 | Fully-sealed wind power slagging gas-drainage deep well drilling system and method |
| US20140367173A1 (en) * | 2013-03-14 | 2014-12-18 | Cary Cooper | Drill bit assembly for a directional percussion boring system |
| CN106437820A (en) * | 2016-12-21 | 2017-02-22 | 重庆南桐矿业有限责任公司 | Current-layer drainage and drilling dustproof flame-retardant structure and operation method |
| CN107387159A (en) * | 2017-09-06 | 2017-11-24 | 中煤科工集团重庆研究院有限公司 | To drilling intelligent drainage function dreg removing system and its application under a kind of coal mine gas drainage |
| CN107524415A (en) * | 2016-11-21 | 2017-12-29 | 河南大有能源股份有限公司新安煤矿 | Coal bed drilling dust arrester and rig |
| CN108301799A (en) * | 2018-04-03 | 2018-07-20 | 淮北矿业股份有限公司 | A kind of hole pumping and mining dust-extraction unit and its application method |
| KR20180093568A (en) * | 2017-02-14 | 2018-08-22 | (주)범창종합기술 | Connecting method for temporary ventilation duct |
| CN109236355A (en) * | 2018-10-30 | 2019-01-18 | 河南能源化工集团研究总院有限公司 | The safe and efficient method for restoring ventilation of high concentration gas closed roadway |
| CN211777571U (en) * | 2019-10-14 | 2020-10-27 | 中煤新集能源股份有限公司 | Air-water pumping linkage device for guaranteeing safe drilling construction |
-
2019
- 2019-10-14 CN CN201910971288.XA patent/CN110541728B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202176355U (en) * | 2011-08-17 | 2012-03-28 | 安徽恒源煤电股份有限公司祁东煤矿 | Coal mine downhole drilling hole dust-reducing device |
| US20140367173A1 (en) * | 2013-03-14 | 2014-12-18 | Cary Cooper | Drill bit assembly for a directional percussion boring system |
| CN103352718A (en) * | 2013-07-29 | 2013-10-16 | 河南理工大学 | Fully-sealed wind power slagging gas-drainage deep well drilling system and method |
| CN107524415A (en) * | 2016-11-21 | 2017-12-29 | 河南大有能源股份有限公司新安煤矿 | Coal bed drilling dust arrester and rig |
| CN106437820A (en) * | 2016-12-21 | 2017-02-22 | 重庆南桐矿业有限责任公司 | Current-layer drainage and drilling dustproof flame-retardant structure and operation method |
| KR20180093568A (en) * | 2017-02-14 | 2018-08-22 | (주)범창종합기술 | Connecting method for temporary ventilation duct |
| CN107387159A (en) * | 2017-09-06 | 2017-11-24 | 中煤科工集团重庆研究院有限公司 | To drilling intelligent drainage function dreg removing system and its application under a kind of coal mine gas drainage |
| CN108301799A (en) * | 2018-04-03 | 2018-07-20 | 淮北矿业股份有限公司 | A kind of hole pumping and mining dust-extraction unit and its application method |
| CN109236355A (en) * | 2018-10-30 | 2019-01-18 | 河南能源化工集团研究总院有限公司 | The safe and efficient method for restoring ventilation of high concentration gas closed roadway |
| CN211777571U (en) * | 2019-10-14 | 2020-10-27 | 中煤新集能源股份有限公司 | Air-water pumping linkage device for guaranteeing safe drilling construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110541728B (en) | 2024-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102561977B (en) | High-pressure high-flow water burst hole drilling safety system, mounting process thereof and service process | |
| CN204002831U (en) | A kind of screw machine blowout prevention structure | |
| CN110714769B (en) | Installation device and installation method for monitoring meter | |
| WO2019029178A1 (en) | New gas control technology for ground pressure-relief borehole in abandoned coal mine | |
| WO2019169734A1 (en) | Integrated apparatus and method for long-distance downhole drilling and fracturing | |
| CN211777571U (en) | Air-water pumping linkage device for guaranteeing safe drilling construction | |
| CN105386737A (en) | Blowout preventing hole opener for casing pipe | |
| CN204646568U (en) | A kind of hydraulic pressure grouting device | |
| CN110541728A (en) | Air-water pumping linkage device for guaranteeing safe drilling construction | |
| CN103867147A (en) | Parallel-tube snubbing pulverized coal discharging system for coal-bed gas well | |
| CA2693099C (en) | Method and device for cleaning and sealing a well | |
| CN110030006A (en) | There is the shield tunneling method of a large amount of boulders by saturated sand and in layer of sand | |
| CN105793517B (en) | Continuous circulation drilling method and apparatus for trapping and redistributing fluid used in the method | |
| CN203476278U (en) | Grouting type hole sealing and automatic water discharging device for underground drilling gas extraction | |
| CN109184618A (en) | Device and method for drill grouting for water blocking and the routed slurry of the routed sand of prevention gushing water | |
| CN113738386A (en) | Leakage blocking method for normal-pressure cutter barrel of shield machine under high-water-pressure condition | |
| CN210858736U (en) | Device for preventing shield spiral conveyor from gushing | |
| CN212337212U (en) | Device for coal mine tunnel pressurized drilling | |
| CN208204500U (en) | A kind of oil supply system for rock drill lubrication | |
| CN202500521U (en) | High-pressure large flow water inrush borehole safety system | |
| RU2776545C1 (en) | Double ram preventor with by-pass monifold | |
| CN116717203B (en) | Horizontal well sand discharging device and use method | |
| CN220791297U (en) | Gas drainage drilling blowout preventer for drilling upward in underground drilling site | |
| Li | A technology to extract coal mine gas using thin sub-layer mining with hydraulic jet | |
| CN202187742U (en) | Multifunctional integral hole sealing injecting and draining device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |