CN203584307U - Novel underground coal mine overall length drilling gas extraction device - Google Patents

Novel underground coal mine overall length drilling gas extraction device Download PDF

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Publication number
CN203584307U
CN203584307U CN201320272423.XU CN201320272423U CN203584307U CN 203584307 U CN203584307 U CN 203584307U CN 201320272423 U CN201320272423 U CN 201320272423U CN 203584307 U CN203584307 U CN 203584307U
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CN
China
Prior art keywords
extraction
drill
drill bit
steel pipe
petal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320272423.XU
Other languages
Chinese (zh)
Inventor
鲁忠良
徐亚辉
王宠惠
卢惠召
郅东东
邱占宏
郭刚建
贾德祥
肖保利
宋志杰
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Henan University of Technology
Original Assignee
Henan University of Technology
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 Henan University of Technology filed Critical Henan University of Technology
Priority to CN201320272423.XU priority Critical patent/CN203584307U/en
Application granted granted Critical
Publication of CN203584307U publication Critical patent/CN203584307U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a novel underground coal mine overall length drilling gas extraction device, which can effectively achieve gas extraction work increasing extraction time and extraction effects, and is capable of realizing drilling hole overall length for extraction. A three-petal-shaped drill bit is manufactured in the center of a conventional drill bit, and the three pedals are combined into an integral body when the drill bit drills and drills along with the drill bit. When the drilling is finished, a water feeder behind drill stems is demounted, one or two drill stems are withdrawn, an extraction steel pipe is connected onto the gas extraction device from the center of the drill stems segment by segment and enters into a drill hole, the three pedals at the center of the drill bit are pushed open, the extraction steel pipe is fixed on the bottom of the drill hole through fixing cartridges, the drill stems are continuously withdrawn, the extraction steel pipe is left the whole drill hole, with the support of the extraction steel pipe, overall length extraction of the drill hole is not influenced even when the drill hole collapses, and because extraction eyes on the extraction steel pipe are covered by a steel mesh, influences on the extraction effect are small even when the drill hole collapses.

Description

The gas pumping device of New Coal Mine down-hole total length boring
Technical field
The utility model relates to coal mine gas exploitation and security fields, particularly a kind of gas pumping device that can increase the extraction time and strengthen a kind of New Coal Mine down-hole total length boring of extracting result.
Background technology
At present, countries in the world coal mine gas extraction is to coal seam drilling, and the length from several meters long of drill head borings downwards, seals boring and drainage tube, carries out extraction.This drainage device is after drilling rod is extracted, hard coal seam is total length hole pumping and mining likely also, and soft or projecting coal bed horse back is with regard to collapse hole, just take out at most the length of 10 meters of left and right, all the other length of boring because of collapse hole can not extraction, shorten the extraction time, reduce the extraction length of boring, waste drilling length, also wasted the drilling time, cause the consumption of mechanical wear, electric energy, personal security even simultaneously, be now badly in need of a kind of coal mine gas drainage device that can increase the extraction time and strengthen the novel total length boring of extracting result.
Summary of the invention
For above-mentioned situation, object of the present invention is exactly to be to provide a kind of gas pumping device that can increase the extraction time and strengthen a kind of New Coal Mine down-hole total length boring of extracting result, and the coal mine gas drainage device of this total length boring is that it can realize boring overall length and carry out extraction.
The invention reside in it and make three " petal " shape drill bits in the central authorities of traditional drill bit, when drill bit creeps into, three " petals " are combined into one, with drill bit, together creep into, when boring finishes, after drilling rod water supplying apparatus below unloads, exiting one to two drilling rod then connects extraction steel pipe to enter boring the inside from one section one section, drilling rod central authorities, three " petal " shapes of drill bit central authorities are backed down, at the bottom of fixedly powder stick is fixed on hole by extraction steel pipe, then continue to move back drilling rod, extraction steel pipe is stayed in whole boring, even if boring collapse hole has extraction steel pipe support can not affect the extraction of boring total length, above the extraction eye of extraction steel pipe, use steel mesh bedding, even if so collapse hole is also very little on extracting result impact.This pumping method has improved the utilization rate of coal bed drilling greatly, to instructing coal mine gas drainage and keeping the safety in production significant.Also reduced the safety that extraction cost has improved people, be an innovation greatly of coal mine gas drainage work simultaneously, applies and have great social effect and economic implications in coal mine gas drainage.
Accompanying drawing explanation
Various aspects of the present invention and other features mentioned above will be described in conjunction with relevant drawings hereinafter, wherein:
Fig. 1 is drilling rod of the present invention, drill bit and extraction steel tubular structure schematic diagram is installed;
Fig. 2 is the structural representation of " petal " of the present invention shape drill bit;
Fig. 3 is steel mesh figure of the present invention;
Fig. 4 extraction steel pipe of the present invention;
Fig. 5 extraction steel pipe of the present invention and steel mesh mounting structure schematic diagram;
The structural representation of closure when Fig. 6 is " petal " of the present invention shape drill bit " petal " work;
Fig. 7 is " petal " of the present invention shape drill bit " petal " structural representation.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
By Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, provided, the present invention be in common drill bit central authorities, manufacture " petal " shape drill bit, " petal " shape drill bit is comprised of bit body (1), " petal " drill bit (4), bit body (1) is comprised of the pivot pin (2) of three external cutting sheets (8), three cooling weep holes (3), three links " petal " drill bits and the central authorities weep holes (7) of lowering the temperature." petal " drill bit (4) is all comprised of with the pivot pin (2) of cutting blade (6), three " petal " cooling weep hole (5), three links " petal " drill bit three " petal " bodies.
Extraction steel pipe is being stamped jewel hole (12) by common steel pipe, and welding upper steel mesh (10) in outside is in case collapse hole, and extraction steel pipe is simultaneously processed into screw (11), and another side is processed into nut (9), so that extraction steel pipe interconnects.
Drilling rod (13) rotates " petal " drill bit (4) " petal " closure under the drive of bit body (1) while driving drill bit work and together creeps into, while getting into projected depth, stop creeping into, after boring finishes, after drilling rod water supplying apparatus below unloads, exit one to two drilling rod, then the extraction steel pipe with steel mesh is connected and enters boring the inside from one section one section, drilling rod central authorities, three " petal " shapes of drill bit central authorities are backed down, at the bottom of fixedly powder stick is fixed on hole by extraction steel pipe, then continue to move back drilling rod, extraction steel pipe is stayed in whole boring, even if boring collapse hole has the extraction that can not affect boring total length with the extraction steel pipe support of steel mesh, above extraction eye because of extraction steel pipe, use steel mesh bedding, even if so collapse hole also on extracting result impact seldom.
This drainage device can be realized the total length gas pumping of boring, the extraction time is long, extracting result is good, simple to operate, can save a large amount of manpower and materials, greatly improved coal bed gas extraction rate, safe and reliable, can extract in a large number again gas out is of great importance to the utilization of gas resources and safety in production, the present invention is simple in structure, novel, unique, also reduced the safety that extraction cost has improved production environment, be an innovation greatly of coal mine gas drainage simultaneously, applies and have great Social benefit and economic benefit.

Claims (1)

1. the coal mine gas drainage device that novel total length is holed, it is characterized in that: in common drill bit central authorities, manufacture " petal " shape drill bit, " petal " shape drill bit is by bit body (1), " petal " drill bit (4) forms, bit body (1) is by three external cutting sheets (8), three cooling weep holes (3), the pivot pin (2) of three links " petal " drill bit and central authorities' cooling weep holes (7) form, " petal " drill bit (4) by three " petal " bodies all with cutting blade (6), three " petal " cooling weep hole (5), the pivot pin (2) of three links " petal " drill bit forms.
CN201320272423.XU 2013-05-20 2013-05-20 Novel underground coal mine overall length drilling gas extraction device Expired - Fee Related CN203584307U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320272423.XU CN203584307U (en) 2013-05-20 2013-05-20 Novel underground coal mine overall length drilling gas extraction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320272423.XU CN203584307U (en) 2013-05-20 2013-05-20 Novel underground coal mine overall length drilling gas extraction device

Publications (1)

Publication Number Publication Date
CN203584307U true CN203584307U (en) 2014-05-07

Family

ID=50582243

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320272423.XU Expired - Fee Related CN203584307U (en) 2013-05-20 2013-05-20 Novel underground coal mine overall length drilling gas extraction device

Country Status (1)

Country Link
CN (1) CN203584307U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575164A (en) * 2017-10-25 2018-01-12 中煤科工集团重庆研究院有限公司 A kind of high-pressure hydraulic with the conditions of brill radially creeps into guider and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575164A (en) * 2017-10-25 2018-01-12 中煤科工集团重庆研究院有限公司 A kind of high-pressure hydraulic with the conditions of brill radially creeps into guider and method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140507

Termination date: 20170520