CN1580489A - Hydraulic coal extraction - Google Patents
Hydraulic coal extraction Download PDFInfo
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- CN1580489A CN1580489A CN 03153206 CN03153206A CN1580489A CN 1580489 A CN1580489 A CN 1580489A CN 03153206 CN03153206 CN 03153206 CN 03153206 A CN03153206 A CN 03153206A CN 1580489 A CN1580489 A CN 1580489A
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Abstract
This invention provides a hydraulic coal mining technology after drilling which mainly relies on hydraulic power to cut down coals and transport them to the ground. First of all, drilling to the direction of coal layer from the ground then to put down well-fixing casing-pipes and utilize high pressure water of shooting flow to cut down the coal and utilize gas lift recycle back technology to take the slurry as the media to mix the coal and water and send them to the ground to be processed with washing and selection equipments to fine coal or water-coal slurry. The water or slurry can be reused after deposition and slag-off. The drilled hole can be single or connected joint holes.
Description
Technical field
The invention belongs to coal mining technology and process, be mainly used in coal mining, especially at present the colliery of difficult exploitation.
Background technology
China is that big coal country's coal production and reserves occupy first place in the world, nearly thousand in big or small colliery, and coal mining mainly contains two kinds of methods at present, and the one, laneway coal mining for burying darker coal seam, must excavate the tunnel, coal is cut down in the tunnel transport out; The 2nd, openwork for burying more shallow coal seam, is directly raised the face of land with excavator and is mined.The present invention is primarily aimed at and buries darker coal seam laneway coal mining is changed into hydraulic coal mining.Existing laneway coal mining technology can't be exploited for complicated seam,, blasts China annual explosion of coal mines casualties several thousand people easily as the coal seam gas-bearing capacity height; For the coal seam that caves in easily, the tunnel landslide often takes place in addition.Using the present invention can overcome the above problems.Existing tunnel is excavated coal-mining technique and had following several big problems: 1. gas bearing capacity height or unsettled coal seam can't be exploited; 2. the miner works in underworkings and has a big risk; 3. big cost height is invested in the tunnel; 4 contaminated environment.
Summary of the invention
Shortcomings such as the risk height, the investment that have the laneway coal mining technical method now and exist are big in order to overcome, contaminated environment, the invention provides the technical method that utilizes hydraulic coal mining after a kind of boring (well), common coal seam can not only be exploited, the coal seam that in the past can't exploit can also be exploited.The present invention mainly relies on waterpower coal to be cut down and is transported to ground.
New solution of the present invention is, at first past coal seam direction boring (well) on the face of land, pore-forming (well) back is the well cementation sleeve pipe down, utilize high-pressure water jet that coal is cut down, as medium, utilize the gaslift reverse circular technique with water (or mud) again, coal that cuts down and water (or mud) mixing are transported to the face of land, be processed into cleaned coal or water-coal-slurry through washing appliance, slagging-off can recycle water (or mud) through precipitation.Boring can be single hole (well) or be communicated with butt hole (well).1, single hole (well) coal-mining method: gaslift counter circulate carrier pipe and coal mining sleeve pipe be fixed together to be lowered in the well cementation sleeve pipe simultaneously to the coal seam, high-pressure spray gun is connected on the drilling rod, in the coal mining sleeve pipe, send into the coal seam, high-pressure water jet shoots out the cutting coal seam by drilling rod in spray gun, coal that cuts down and water mixing are transported to ground through the anti-carrier pipe that circulates of gaslift continuously.2, be communicated with butt hole (well) coal-mining method: be lowered to the anti-carrier pipe that circulates of gaslift in the well cementation sleeve pipe at one end to the coal seam, in other end coal mining sleeve pipe, be lowered to high-pressure spray gun near carrier pipe, high-pressure water jet shoots out the cutting coal seam by drilling rod in spray gun, coal that cuts down and water mixing are transported to ground by the anti-carrier pipe that circulates of gaslift continuously.Spray gun is movable spray back slowly, has more coals to be cut again, pumps into water or mud in the coal mining sleeve pipe, and coal is delivered near the delivery cannula, delivers to the face of land from delivery cannula again, is processed into cleaned coal or water-coal-slurry through washing appliance.
The invention has the beneficial effects as follows, can guarantee that coal mining realizes safety, efficient, environmental protection and technology and method cheaply, and invest for a short time, the mine construction cycle is short, and operating cost is low.
Description of drawings
The present invention is described in detail below in conjunction with accompanying drawing:
Fig. 1 is single hole of the present invention (well) coal winning technology schematic diagram.
Fig. 2 is communicated with butt hole (well) coal winning technology schematic diagram for the present invention.
1, well cementation sleeve pipe 2, the anti-carrier pipe 3 that circulates of gaslift, coal 4, coal seam 5, high-pressure water jet 6, spray gun 7, drilling rod 8, coal mining sleeve pipe 9, water or mud
The specific embodiment
Implement when of the present invention at first on the face of land toward coal seam direction boring (well).Boring can be single hole (well) as Fig. 1 or be communicated with butt hole (well) as Fig. 2, decide pore-forming well (back) time well cementation sleeve pipe 1 on the coal seam situation.(1), single hole (well) coal-mining method: gaslift counter circulate carrier pipe 2 and coal mining sleeve pipe 8 be fixed together is lowered in the well cementation sleeve pipe 1 simultaneously to the coal seam 4, high-pressure spray gun 6 is connected on the drilling rod 7, in coal mining sleeve pipe 8, send into coal seam 4, high-pressure water jet 5 shoots out cutting coal seam 4 by drilling rod 7 from 6 li of spray guns, and coal 3 that cuts down and water (or mud) 9 mixing are transported to ground through the anti-carrier pipe 2 that circulates of gaslift continuously.Spray gun 6 slowly moves down, and has more coal 3 to be cut again and water (or mud) 9 mixing, delivers to the face of land by the anti-carrier pipe 2 that circulates of gaslift.(2), be communicated with butt hole (well) coal-mining method: in well cementation sleeve pipe 1, be lowered to the anti-carrier pipe 2 that circulates of gaslift to the coal seam 4, in other end coal mining sleeve pipe 8, be lowered to high-pressure spray gun 6 near carrier pipe 2, high-pressure water jet 5 shoots out cutting coal seam 4 by drilling rod 7 from 6 li of spray guns, and coal 3 that cuts down and water (or mud) 9 mixing are transported to ground by the anti-carrier pipe 2 that circulates of gaslift continuously.Spray gun 6 is movable spray back slowly, has more coals 3 to be cut again, pumps into water (or mud) 9 from 8 li of coal mining sleeve pipes, coal 3 is delivered near the carrier pipe, deliver to the face of land from carrier pipe again, be processed into cleaned coal or water-coal-slurry through washing appliance, water can recycle.
Claims (3)
1, hydraulic coal mining is a kind of technical method of coal mining, at first past coal seam direction boring (well) on the face of land, boring can be single hole (well) or be communicated with butt hole (well), utilize high-pressure water jet that coal is cut down, utilize the gaslift reverse circular technique again,, it is characterized in that: utilize boring as the coal mining transfer passage being transported to the face of land after coal that cuts down and water (or mud) mixing, spray gun and water (or mud) are sent in hole at the bottom of the hole, and coal is transported to the face of land by boring.
2, the hydraulic coal mining that requires according to right 1 is characterized in that: utilize high-pressure water jet to be used as power and cut the coal seam.
3, the hydraulic coal mining that requires according to right 1 is characterized in that: utilize water (or mud) as medium, coal is transported to the face of land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153206 CN1580489A (en) | 2003-08-07 | 2003-08-07 | Hydraulic coal extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153206 CN1580489A (en) | 2003-08-07 | 2003-08-07 | Hydraulic coal extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1580489A true CN1580489A (en) | 2005-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03153206 Pending CN1580489A (en) | 2003-08-07 | 2003-08-07 | Hydraulic coal extraction |
Country Status (1)
| Country | Link |
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| CN (1) | CN1580489A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936137A (en) * | 2010-08-09 | 2011-01-05 | 北京奥瑞安能源技术开发有限公司 | Discharging and mining pipe for coalbed methane |
| CN102712845A (en) * | 2010-01-21 | 2012-10-03 | 蒂森克虏伯伍德公司 | Method for producing individual compacted blocks suitable for coke oven chambers by non-mechanical cutting of compressed coal cakes |
| CN102777183A (en) * | 2012-07-24 | 2012-11-14 | 河南理工大学 | Hydraulic coal mining process for bottom plate roadway |
| CN103437764A (en) * | 2012-05-28 | 2013-12-11 | 秦勇 | Novel process for directional drilling for coal mining |
| CN104018840A (en) * | 2014-06-21 | 2014-09-03 | 吉林大学 | Telescopic water gun based on ratchet locking mechanism |
| CN111908301A (en) * | 2020-07-15 | 2020-11-10 | 中南大学 | Underground ore lifting method |
| CN117662151A (en) * | 2023-12-08 | 2024-03-08 | 中国矿业大学(北京) | Coal bed U-shaped well exploitation method and system |
-
2003
- 2003-08-07 CN CN 03153206 patent/CN1580489A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102712845A (en) * | 2010-01-21 | 2012-10-03 | 蒂森克虏伯伍德公司 | Method for producing individual compacted blocks suitable for coke oven chambers by non-mechanical cutting of compressed coal cakes |
| CN102712845B (en) * | 2010-01-21 | 2014-12-17 | 蒂森克虏伯伍德公司 | Method for producing individual compacted blocks suitable for coke oven chambers by non-mechanical cutting of compressed coal cakes |
| CN101936137A (en) * | 2010-08-09 | 2011-01-05 | 北京奥瑞安能源技术开发有限公司 | Discharging and mining pipe for coalbed methane |
| CN101936137B (en) * | 2010-08-09 | 2012-10-10 | 北京奥瑞安能源技术开发有限公司 | Discharging and mining pipe for coalbed methane |
| CN103437764A (en) * | 2012-05-28 | 2013-12-11 | 秦勇 | Novel process for directional drilling for coal mining |
| CN102777183A (en) * | 2012-07-24 | 2012-11-14 | 河南理工大学 | Hydraulic coal mining process for bottom plate roadway |
| CN104018840A (en) * | 2014-06-21 | 2014-09-03 | 吉林大学 | Telescopic water gun based on ratchet locking mechanism |
| CN111908301A (en) * | 2020-07-15 | 2020-11-10 | 中南大学 | Underground ore lifting method |
| CN111908301B (en) * | 2020-07-15 | 2021-03-30 | 中南大学 | Underground ore lifting method |
| CN117662151A (en) * | 2023-12-08 | 2024-03-08 | 中国矿业大学(北京) | Coal bed U-shaped well exploitation method and system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |