CN112049679B - Drilling and dredging device for old-fashioned water - Google Patents
Drilling and dredging device for old-fashioned water Download PDFInfo
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- CN112049679B CN112049679B CN202010870816.5A CN202010870816A CN112049679B CN 112049679 B CN112049679 B CN 112049679B CN 202010870816 A CN202010870816 A CN 202010870816A CN 112049679 B CN112049679 B CN 112049679B
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- 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
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- 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
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
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- 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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/07—Arrangements for treating drilling fluids outside the borehole for treating dust-laden gaseous fluids
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21F16/00—Drainage
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a drilling and dredging device for old-fashioned area water, which comprises a drilling hole, a water stopping sleeve, a water quantity measuring mechanism, a blowout-preventing negative pressure extraction system and a gas-water separation and dredging system, wherein the drilling hole is used for drilling the old-fashioned area water, the water stopping sleeve is provided with a water stopping mechanism, the water stopping sleeve is arranged on the inner wall surface of the drilling hole, a sealing mechanism is arranged in the drilling hole and used for sealing the air discharging hole and the slag discharging hole of the water stopping sleeve, the air discharging hole at the top of one side of the water stopping sleeve is connected with the air inlet of the blowout-preventing negative pressure extraction system, the slag discharging hole arranged at the bottom of one side of the water stopping sleeve is connected with the inlet end of the gas-water separation and dredging mechanism through the slag discharging sleeve, the slag discharging sleeve is connected with the inlet end of the gas-water separation and dredging system through the slag discharging quantity adjusting mechanism, and the air outlet end of the gas-water separation and dredging system is connected with the air inlet of the blowout-preventing negative pressure extraction system.
Description
Technical Field
The invention belongs to the field of coal mine drilling and dredging equipment, and particularly relates to a drilling and dredging device for old goaf water.
Background
Nowadays, the sounding engineering for the water in the old goaf is more and more frequent, and strict requirements are required for the sounding of the water in the old goaf, because in the sounding engineering for the water in the old goaf, potential safety hazards are more, and the lives of staff are threatened.
In the existing drilling process, a blowout prevention extraction system is not installed at an orifice of the drilling process, gas and toxic and harmful gas accumulated in the goaf are easy to flow out instantaneously when penetrating through the goaf, gas overrun is caused, and the harm of constructors is caused by the suction of the toxic and harmful gas. In the drainage process, for water outlet drilling, the traditional open drainage is carried out, oxygen in the air is easy to enter a goaf through the drilling in the drainage process, and particularly, the drainage of the empty water supplied by a water source exists, and the long-time open air leakage can have potential safety hazards to the fire prevention of the goaf.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the drilling and dredging device for the water in the old goaf, and the process mode has obvious safety benefit and huge economic benefit, and greatly improves the sounding and dredging efficiency.
The technical scheme includes that the drilling tool comprises a drilling tool for drilling old goaf water and a drilling hole in the drilling process of the drilling tool, and is characterized by comprising a water stopping sleeve with an air outlet and a slag discharging port, a water quantity measuring mechanism, a blowout-preventing negative pressure extraction system and a gas-water separation drainage system, wherein the water stopping sleeve is arranged on the inner wall surface of the drilling hole, a sealing mechanism for the air outlet and the slag discharging port of the water stopping sleeve is arranged in the drilling hole, the air outlet at the top of one side of the water stopping sleeve is connected with the air inlet of the blowout-preventing negative pressure extraction system, the slag discharging port arranged at the bottom of one side of the water stopping sleeve is connected with the inlet end of the gas-water separation drainage mechanism through the arranged slag discharging sleeve, the slag discharging sleeve is connected with the inlet end of the gas-water separation drainage system through the arranged slag discharging quantity adjusting mechanism, the outlet end of the gas-water separation drainage system is composed of a water outlet end and an air outlet end, the air outlet end of the gas-water separation drainage system is connected with the air inlet additionally arranged in the blowout-preventing negative pressure extraction system, and the water outlet end of the gas-water separation drainage system is provided with the water quantity measuring mechanism.
The technical scheme provides a drilling drainage device for old-fashioned area water, the blowout-preventing negative pressure drainage system comprises a first exhaust pipe, a second exhaust pipe and a drainage pipeline with negative pressure, wherein an air inlet of the first exhaust pipe is connected with an air outlet of a water stop sleeve, an air outlet of the exhaust pipe is connected with an air inlet of the drainage pipeline, an air inlet of the second exhaust pipe is connected with an air outlet end of the gas-water separation drainage system, and an air outlet of the second exhaust pipe is connected with an air inlet additionally arranged on the drainage pipeline.
The gas-water separation drainage system is composed of a U-shaped pipe, a second high-pressure gate valve, a high-pressure water pipe, a negative pressure meter, a positive pressure meter and a drainage pipeline, wherein the air outlet end of the top of one pipe orifice of the U-shaped pipe is connected with the air inlet of the second exhaust pipe through the second high-pressure gate valve and the negative pressure meter, the second high-pressure gate valve is arranged between the negative pressure meter and the air outlet end of the U-shaped pipe, the water outlet end of the side part of the pipe orifice of one side of the U-shaped pipe is connected with the water inlet of the drainage pipeline through the high-pressure water pipe, and the positive pressure meter and the water quantity measuring mechanism are arranged on the high-pressure water pipe.
The technical scheme provides a drilling drainage device for old-fashioned area water, the malleation table sets up the play water end of U type pipe with between the water yield measuring mechanism, the water yield measuring mechanism set up the malleation table with between the drainage pipe.
The technical scheme provides a drilling drainage device for old-fashioned area water, water yield measuring mechanism comprises flowmeter and third high-pressure gate valve, the third high-pressure gate valve sets up between malleation table and the flowmeter, be used for reading the flowmeter setting of water yield is in between the third high-pressure gate valve with drainage pipe's water inlet.
The technical scheme provides a drilling drainage device for old and useless area water, sealing mechanism is a fourth high-pressure gate valve and the sealing washer that is used for sealedly, and the sealing washer sets up the drilling is kept away from the drilling direction with the one end of sealing-up sheathed tube gas vent and row cinder notch, fourth high-pressure gate valve sets up the one end that is close to the drilling direction at the drilling.
The technical scheme provides a drilling drainage device for old-fashioned district water, sediment volume adjustment mechanism is a first high-pressure gate valve that is used for controlling sediment volume, and sediment sleeve pipe passes through first high-pressure gate valve with the entrance point of U type pipe is connected.
The drilling and dredging device for the old-fashioned water is provided by the technical scheme, and flange plates are arranged at two ends of the first high-pressure gate valve, the second high-pressure gate valve, the third high-pressure gate valve and the fourth high-pressure gate valve.
According to the drilling and dredging device for the water in the old goaf, the flange is arranged at one end, close to the air outlet of the water stop sleeve, of the sealing ring.
According to the drilling drainage device for the water in the old goaf, the water stop sleeve is arranged on the inner wall of a drilled hole left after drilling by the drilling tool, harmful gas in the drilled hole is discharged into the extraction pipeline through the exhaust port arranged at the top of one side of the water stop sleeve by means of a negative pressure principle, a mixture in the drilled hole is discharged into the U-shaped pipe through the slag discharge sleeve by means of the slag discharge port at the bottom of one side of the water stop sleeve, after the mixture enters the U-shaped pipe, according to pressure difference, gas in the mixture enters the extraction pipeline from the exhaust end of the U-shaped pipe through the negative pressure, a large amount of waste water in the mixture enters the drainage pipeline through the water amount measuring mechanism, the first high-pressure gate valve is controlled to control the slag discharge amount, the second high-pressure gate valve is controlled to adjust the negative pressure so as to facilitate the extraction of harmful gas and drainage, the second high-pressure gate valve and the third high-pressure gate valve are closed to directly measure the water pressure according to the positive pressure meter, the third gate valve is opened to measure the water pressure according to the flow meter, and when the drainage pressure is kept, the fourth high-pressure gate valve is opened, and the mixture is further connected to the depth of the drill hole is further discharged.
According to the technical scheme, abnormal phenomena of gas and toxic and harmful gas can be avoided to a great extent in the sounding and discharging process according to the mode, actually measured water pressure is real and reliable, the water pressure is controlled in a reasonable range, the water discharging efficiency can be improved, the service life of a high-pressure water pipe can be guaranteed, the water discharging is smooth, the empty water can be effectively discharged, external air can be prevented from entering a goaf, the fire-proof pressure of the goaf is reduced, the safety coefficient of the sounding and discharging process is improved, potential safety hazards are greatly avoided, and in the above, the safety benefit of the technological mode is remarkable, the economic benefit is huge, and the sounding and discharging efficiency is greatly improved.
The invention will be described in more detail below with reference to the drawings and examples.
Drawings
The contents and the marks in the drawings expressed in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic diagram of an apparatus of the present invention;
The device is characterized by comprising a drill, a drilling tool, a sealing ring, a first exhaust pipe, a 5 extraction pipeline, a6 slag discharge port, a 7 first high-pressure gate valve, an 8 flange, a 9U-shaped pipe, a 10 second high-pressure gate valve, a 11 negative pressure meter, a 12 second exhaust pipe, a 13 positive pressure meter, a 14 high-pressure water pipe, a 15 third high-pressure gate valve, a 16 flowmeter, a 17 drainage pipeline, a 18 fourth high-pressure gate valve, a 19 slag discharge sleeve, a 20 water-stop sleeve.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shape and construction of the components, the mutual positions and connection relationships between the components, the roles and working principles of the components, the manufacturing process and the operation and use method, etc., will be given by way of example only to assist those skilled in the art in a more complete, accurate and thorough understanding of the present invention.
The drilling and dredging device for the old-fashioned area water is shown in fig. 1 and comprises a drilling tool 2 for drilling the old-fashioned area water and a drilling hole 1 in the drilling process of the drilling tool 2, and is characterized by comprising a water stopping sleeve 20 with an air outlet and a slag discharging port 6, a water quantity measuring mechanism, a blowout prevention negative pressure drainage system and a gas-water separation dredging system, wherein the water stopping sleeve 20 is arranged on the inner wall surface of the drilling hole 1, a sealing mechanism for the air outlet and the slag discharging port 6 of the water stopping sleeve 20 is arranged in the drilling hole 1, the air outlet at the top of one side of the water stopping sleeve 20 is connected with the air inlet of the blowout prevention negative pressure drainage system, the slag discharging port 6 arranged at the bottom of one side of the water stopping sleeve 20 is connected with the inlet end of the gas-water separation dredging system through the slag discharging sleeve 19, the slag discharging sleeve 19 is connected with the inlet end of the gas-water separation dredging system through the slag discharging quantity adjusting mechanism, the outlet end of the gas-water separation dredging system consists of a water outlet end and an air outlet end, the air outlet end of the gas-water separation dredging system is connected with the air inlet of the blowout prevention negative pressure drainage system, and the water outlet measuring mechanism is arranged at the water outlet end of the gas-water separation dredging system.
The blowout-preventing negative pressure extraction system comprises a first exhaust pipe 4, a second exhaust pipe 12 and an extraction pipeline 5 with negative pressure, wherein an air inlet of the first exhaust pipe 4 is connected with an air outlet of a water stop sleeve 20, an air outlet of the exhaust pipe is connected with an air inlet of the extraction pipeline 5, an air inlet of the second exhaust pipe 12 is connected with an air outlet end of a gas-water separation drainage system, and an air outlet of the second exhaust pipe 12 is connected with an air inlet additionally arranged in the extraction pipeline 5.
The gas-water separation drainage system comprises a U-shaped pipe 9, a second high-pressure gate valve 10, a high-pressure water pipe 14, a negative pressure meter 11, a positive pressure meter 13 and a drainage pipeline, wherein the air outlet end of the top of a pipe orifice at one side of the U-shaped pipe 9 is connected with the air inlet of a second exhaust pipe 12 through the second high-pressure gate valve 10 and the negative pressure meter 11, the second high-pressure gate valve 10 is arranged between the negative pressure meter 11 and the air outlet end of the U-shaped pipe 9, the water outlet end of the side part of the pipe orifice at one side of the U-shaped pipe 9 is connected with the water inlet of the drainage pipeline through the high-pressure water pipe 14, and the positive pressure meter 13 and a water quantity measuring mechanism are arranged on the high-pressure water pipe 14.
The positive pressure meter 13 is arranged between the water outlet end of the U-shaped pipe 9 and a water quantity measuring mechanism, and the water quantity measuring mechanism is arranged between the positive pressure meter 13 and the drainage pipeline 17.
The water quantity measuring mechanism is composed of a flowmeter 16 and a third high-pressure gate valve 15, the third high-pressure gate valve 15 is arranged between the positive pressure gauge 13 and the flowmeter 16, and the flowmeter 16 for reading the discharged water quantity is arranged between the third high-pressure gate valve 15 and the water inlet of the drain pipeline 17.
The sealing mechanism is a fourth high-pressure gate valve 18 and a sealing ring 3 for sealing, the sealing ring 3 is arranged at one end of the drill hole 1 far away from the drilling direction and the exhaust port and slag discharging port 6 of the water stop sleeve 20, and the fourth high-pressure gate valve 18 is arranged at one end of the drill hole 1 near the drilling direction.
The slag discharge quantity adjusting mechanism is a first high-pressure gate valve 7 for controlling the slag discharge quantity, and a slag discharge sleeve 19 is connected with the inlet end of the U-shaped pipe 9 through the first high-pressure gate valve 7.
The first high-pressure gate valve 7, the second high-pressure gate valve 10, the third high-pressure gate valve 15 and the fourth high-pressure gate valve 18 are provided with flanges 8 at both ends.
The sealing ring 3 is close to the exhaust port of the water stop sleeve 20 is provided with a flange 8.
The inner wall of the drill hole 1 left after drilling of the drilling tool 2 is provided with a water stop sleeve 20, harmful gas in the drill hole 1 is discharged into a drainage pipeline 5 through an exhaust port arranged at the top of one side of the water stop sleeve 20 by a negative pressure principle, the mixture in the drill hole 1 is discharged into a U-shaped pipe 9 through a slag discharge port 6 at the bottom of one side of the water stop sleeve 20, the mixture enters the U-shaped pipe 9 according to the pressure difference after entering the U-shaped pipe 9, the gas in the mixture is far away from the exhaust end of the U-shaped pipe 9 through negative pressure and enters the drainage pipeline 5, a large amount of waste water in the mixture enters a drainage pipeline 17 through a water volume measuring mechanism, the first high-pressure gate valve 7 is controlled, the size of the negative pressure can be adjusted by controlling the second high-pressure gate valve 10 so as to drain harmful gas and drainage, the water pressure can be directly measured by closing the second high-pressure gate valve 10 and the third high-pressure gate valve 15 according to a positive pressure meter 13, the water discharge volume can be measured by opening the third gate valve according to a flow meter 16, and the mixture and harmful gas deeper in the drill hole 1 are opened by opening the fourth high-pressure gate valve 18 when the discharge pressure is allowed, and further work is performed.
According to the technical scheme, abnormal phenomena of gas and toxic and harmful gas can be avoided to a great extent in the sounding and discharging process according to the mode, actually measured water pressure is real and reliable, the water pressure is controlled in a reasonable range, the water discharging efficiency can be improved, the service life of a high-pressure water pipe can be guaranteed, the water discharging is smooth, the empty water can be effectively discharged, external air can be prevented from entering a goaf, the fire-proof pressure of the goaf is reduced, the safety coefficient of the sounding and discharging process is improved, potential safety hazards are greatly avoided, and in the above, the safety benefit of the technological mode is remarkable, the economic benefit is huge, and the sounding and discharging efficiency is greatly improved.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (10)
1. The drilling and dredging device for the old-fashioned water comprises a drilling tool for drilling the old-fashioned water and a drilling hole in the drilling process of the drilling tool, and is characterized by comprising a water stopping sleeve with an exhaust port and a slag discharging port, a water quantity measuring mechanism, a blowout-preventing negative pressure extraction system and a gas-water separation and dredging system, wherein the water stopping sleeve is arranged on the inner wall surface of the drilling hole, a sealing mechanism for the exhaust port and the slag discharging port of the water stopping sleeve is arranged in the drilling hole, the exhaust port at the top of one side of the water stopping sleeve is connected with the air inlet of the blowout-preventing negative pressure extraction system, the slag discharging port arranged at the bottom of one side of the water stopping sleeve is connected with the inlet end of the gas-water separation and dredging mechanism through the slag discharging sleeve, the slag discharging sleeve is connected with the inlet end of the gas-water separation and dredging system through the slag discharging quantity adjusting mechanism, the outlet end of the gas-water separation and dredging system is connected with the air inlet additionally arranged in the blowout-preventing negative pressure extraction system, and the water outlet end of the gas-water separation and dredging system is provided with the water quantity measuring mechanism.
2. The device for drilling and dredging water in old goaf according to claim 1, wherein the blowout prevention negative pressure extraction system comprises a first exhaust pipe, a second exhaust pipe and an extraction pipeline with negative pressure, an air inlet of the first exhaust pipe is connected with an air outlet of the water stop sleeve, an air outlet of the exhaust pipe is connected with an air inlet of the extraction pipeline, an air inlet of the second exhaust pipe is connected with an air outlet end of the air-water separation and dredging system, and an air outlet of the second exhaust pipe is connected with an air inlet additionally arranged in the extraction pipeline.
3. The device for drilling and dredging water in the old goaf is characterized in that the gas-water separation and dredging system is provided with a U-shaped pipe, a second high-pressure gate valve, a high-pressure water pipe, a negative pressure meter, a positive pressure meter and a drainage pipeline, an air outlet end at the top of a pipe orifice of one side of the U-shaped pipe is connected with an air inlet of the second exhaust pipe through the second high-pressure gate valve and the negative pressure meter, the second high-pressure gate valve is arranged between the negative pressure meter and the air outlet end of the U-shaped pipe, an air outlet end at the side of the pipe orifice of one side of the U-shaped pipe is connected with a water inlet of the drainage pipeline through the high-pressure water pipe, and the high-pressure water pipe is provided with the positive pressure meter and the water quantity measuring mechanism.
4. A device for the drilling and drainage of old fashioned water, as claimed in claim 3, characterized in that said positive pressure gauge is arranged between the water outlet end of said U-shaped pipe and said water quantity measuring means, which are arranged between the positive pressure gauge and said drainage line.
5. A device for the drilling and drainage of old-fashioned water according to claim 4, characterized in that the water quantity measuring means are provided with a flow meter and a third high-pressure gate valve, wherein the third high-pressure gate valve is arranged between the positive pressure gauge and the flow meter, and a flow meter for reading the water discharge quantity is arranged between the third high-pressure gate valve and the water inlet of the drainage line.
6. A device for dredging water in old air area according to claim 5, wherein the sealing mechanism is provided with a fourth high-pressure gate valve and a sealing ring for sealing, the sealing ring is arranged at one end of the drill hole away from the drilling direction and the exhaust port and the slag discharging port of the water stop sleeve, and the fourth high-pressure gate valve is arranged at one end of the drill hole close to the drilling direction.
7. A device for dredging water in a large scale area according to claim 6 wherein the slag amount adjusting mechanism is provided with a first high pressure gate valve for controlling the amount of slag discharged, and the slag discharging sleeve is connected to the inlet end of the U-shaped pipe through the first high pressure gate valve.
8. A device for dredging water in a senior citizen space as claimed in claim 7 wherein the first, second, third and fourth high pressure gate valves are provided with flanges at both ends thereof.
9. A device for dredging water in a senior citizen's area as set forth in claim 6 wherein a flange is provided at the end of the seal ring adjacent to the water stop sleeve vent.
10. A drilling and dredging method for old-fashioned area water comprises the steps of arranging a water stopping sleeve on the inner wall of a drilled hole left after drilling of a drilling tool, discharging harmful gas in the drilled hole into a drainage pipeline through an exhaust port arranged at the top of one side of the water stopping sleeve by means of a negative pressure principle, discharging a mixture in the drilled hole into a U-shaped pipe through a slag discharging hole at the bottom of one side of the water stopping sleeve by means of the slag discharging sleeve, enabling gas in the mixture to enter the drainage pipeline from the exhaust end of the U-shaped pipe through the negative pressure according to a pressure difference after the mixture enters the U-shaped pipe, enabling a large amount of waste water in the mixture to enter the drainage pipeline through the water quantity measuring mechanism, controlling the first high-pressure controllable slag discharge quantity, controlling the second high-pressure sluice valve to be capable of adjusting the negative pressure so as to extract harmful gas and drainage, closing the second high-pressure sluice valve and the third high-pressure sluice valve, directly measuring the mixture in the U-shaped pipe according to the positive pressure meter, opening the third high-pressure sluice valve according to the pressure difference, and further enabling the mixture to be discharged in the depth when the fourth high-pressure meter is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870816.5A CN112049679B (en) | 2020-08-26 | 2020-08-26 | Drilling and dredging device for old-fashioned water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870816.5A CN112049679B (en) | 2020-08-26 | 2020-08-26 | Drilling and dredging device for old-fashioned water |
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| CN112049679A CN112049679A (en) | 2020-12-08 |
| CN112049679B true CN112049679B (en) | 2025-07-08 |
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| CN202010870816.5A Active CN112049679B (en) | 2020-08-26 | 2020-08-26 | Drilling and dredging device for old-fashioned water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US12146410B1 (en) | 2023-08-07 | 2024-11-19 | Ping An Coal Mining Engineering Technology Research Institute Co., Ltd | Method for dewatering coal mine goaf by crossing neighboring goaf |
| CN117027935A (en) * | 2023-08-07 | 2023-11-10 | 平安煤炭开采工程技术研究院有限责任公司 | Method for dredging coal mine overhead water hazard crossing adjacent goaf |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN213269970U (en) * | 2020-08-26 | 2021-05-25 | 淮北矿业股份有限公司 | Drilling drainage device for water in old air space |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104358584A (en) * | 2014-11-28 | 2015-02-18 | 贵州盘江矿山机械有限公司 | Anti-blowout system for gas drainage extraction |
| CN204299531U (en) * | 2014-12-11 | 2015-04-29 | 河南宇建科技股份有限公司 | Mining thin hole, device for preventing blowout of drill holes |
| CN106761674B (en) * | 2016-12-09 | 2019-06-25 | 中国矿业大学 | It is a kind of integrate draw water and the ground of unrestrained water test lead directly to down-hole drilling device |
| CN207554110U (en) * | 2017-12-14 | 2018-06-29 | 林青 | A kind of unrestrained water installations for the old dead zone of spontaneous fire seam |
| CN208793035U (en) * | 2018-09-11 | 2019-04-26 | 山西汾西矿业（集团）有限责任公司 | The unrestrained water drilling hole gas-water separation automatic bleeder of geology |
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| CN213269970U (en) * | 2020-08-26 | 2021-05-25 | 淮北矿业股份有限公司 | Drilling drainage device for water in old air space |
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