CN102619469B - Device for hole drilling, seam cutting and pressure relief of coal seam - Google Patents
Device for hole drilling, seam cutting and pressure relief of coal seam Download PDFInfo
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- CN102619469B CN102619469B CN2012101073265A CN201210107326A CN102619469B CN 102619469 B CN102619469 B CN 102619469B CN 2012101073265 A CN2012101073265 A CN 2012101073265A CN 201210107326 A CN201210107326 A CN 201210107326A CN 102619469 B CN102619469 B CN 102619469B
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Abstract
The invention belongs to devices for coaling mining drilling of coal mines and particularly relates to a device for hole drilling, seam cutting and pressure relief of a coal seam. The right end of a high pressure hard rubber hose (7) is connected with the rear end of an automatic rotating joint (8), the other end of the automatic rotating joint (8) is movably connected with an automatic rotating joint connector (18) and is sealed with a sealing ring (19), the automatic rotating joint connector (18) is in threaded connection with the left end of a multifunctional sprayer casing (10), an inner silencing sleeve (15) is installed on the periphery of the multifunctional sprayer casing (10), an outer silencing sleeve (9) is installed outside the inner silencing sleeve (15), and a drill bit (12) is installed on the right end face of the multifunctional sprayer casing (10). A high-pressure pump is arranged inside the device for hole drilling, seam cutting and pressure relief of a coal seam to achieve high-pressure hole drilling, a hollow sphere is put in after hole drilling to achieve high-pressure seam cutting and to achieve seam cutting of 360 degrees on a cutting face, effects of seam cutting and pressure relief are enhanced while the cutting efficiency is improved, and the silencing sleeves are arranged on a multifunctional sprayer to greatly reduce noise.
Description
Technical field
The invention belongs to the boring equipment of coal mining, particularly a kind of coal bed drilling slot pressure relief device.
Background technology
Bump is one of serious dynamic disaster occurred in process of coal mining, the coal seam release is the main method of avoiding or slow down bump, Mining Protective Seam, in coal seam boring be the coal seam release effectively, with the measure of essence, but Mining Protective Seam can not be realized the release in this coal seam, and be subject to geological conditions etc. to be permitted multifactorial restriction, the boring release is affected by bore diameter and relief range.The equipment that colliery is used at present is drill hole of drilling machine mostly, and there are the problems such as length is motionless apart from the large aperture brill, bit freezing in this method in High Ground Stress Areas, and this brings a lot of problems to the machine drilling release.
In recent years, high pressure water jet is introduced to the anti-reflection extinction of coal bed drilling, the high-pressure water jet work system produces very large noise in boring, in the slot process, and operating personnel's health is had to very large harm.In addition, creeping into slot is two complete equipments, after boring completes, then changes the seam cutting drill bit slot, exits drilling rod while changing seam cutting drill bit, often because of coal seam, across the sealing of hole that falls, causes the slot failure.Also have, adopt at present the waterpower drill bit of high pressure water jet to be mainly used in water jet boring, mode is more single.CN451839A disclosed " the waterpower drill bit of remote controlled boring, slot and correction ", although can carry out water jet boring and two kinds of operations of water jet slot, but the conversion of drill bit duty must be by the pressure oil provided in addition as switching power, complex structure.CN1776185A disclosed " the high-pressure water jet drill bit of punched hole capable of water pressure switch, slot ", but drill bit fixes, can only be from the cutting of nozzle direction during slot, and can only realize switching punching, slot in existing boring.CN201810206U disclosed " high pressure water jet drilling expansion integrated apparatus ", it can only realize low pressure boring, the high pressure slot, the low pressure drilling efficiency is low.All in all existing technology exists the slot can only be large from nozzle direction cutting, noise, can only low pressure boring, and the gap of each slot is less, can not meet the shortcomings such as coal seam release.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, a kind of simple in structure, easy to operate, little coal bed drilling slot pressure relief device of generation noise is provided.
The technical scheme that technical solution problem of the present invention adopts is: coal bed drilling slot pressure relief device comprises water tank, water-supply-pipe, high-pressure pump, the high pressure flexible rubber hose, hydraulic control valve, the sebific duct propeller, the high pressure rigid rubber pipe, be characterized in connecting automatic rotation joint rear end on the right-hand member head of high pressure rigid rubber pipe, the other end of automatic rotation joint is flexibly connected the automatic rotation connector interfaces, and seal with sealing ring, the be threaded left end of multifunctional nozzle shell body of automatic rotation connector interfaces, Sound damping cover in multifunctional nozzle shell body outer placed dress, Sound damping cover outside the dress of the outside of interior Sound damping cover, fill drill bit on the right side of multifunctional nozzle shell body, drill bit is inserted in the central through hole of multifunctional nozzle shell body, the multifunctional nozzle shell body and in, on the periphery of outer Sound damping cover, correspondence arranges three equidistant cross sections of laying the slot nozzle, each cross section correspondence is equidistantly established four slot nozzles, on drill bit, front end is provided with three parallel boring nozzles, the boring nozzle is communicated with the drill bit tank in drill bit, on drill bit, the drill bit inlet opening is communicated with the drill bit tank, be provided with the spring fitting groove in the central through hole of multifunctional nozzle shell body, in the spring fitting groove, lining is housed, lining outside shock mount, the spring left side connects the right boss of mobile, mobile's central through hole place dress hollow ball of mobile's left end, the drill bit inlet opening is communicated with the lining central through hole, the lining central through hole communicates with the mobile central through hole.
The invention has the beneficial effects as follows: the high-pressure pump of establishing in coal bed drilling slot pressure relief device, realize high pressure boring, put into hollow ball after having holed, can realize the high pressure slot again.Be connected the automatic rotation joint between high pressure ebonite pipe and multifunctional nozzle, multifunctional nozzle can be rotated by 360 degree, realization is at cut surface 360 degree slots, three slot nozzle cross-sections are set on multifunctional nozzle, four slot nozzles are established in each cross section, increased the width of each cutting, strengthened cutting release effect when improving cutting efficiency, open a slot nozzle cross-section and can also realize punching when low pressure, can realize high pressure boring, the high pressure slot, the low pressure punching, can realize high pressure slot and low pressure punching exchange in the slot process, exist and put Sound damping cover on multifunctional nozzle, greatly reduce noise, improved work situation.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, with embodiment, illustrate.
Fig. 1 is coal bed drilling slot pressure relief device structure annexation figure.
Fig. 2 is multifunctional nozzle structure chart in Fig. 1.
In figure, the 1-water tank; The 2-water-supply-pipe; The 3-high-pressure pump; 4-high pressure flexible rubber hose; The 5-hydraulic control valve; 6-sebific duct propeller; 7-high pressure rigid rubber pipe; 8-automatic rotation joint; The outer Sound damping cover of 9-; 10-multifunctional nozzle shell body; 10-1-shell body central through hole; 10-2-slot nozzle; 10-3-spring fitting groove; The 11-spring; The 12-drill bit; 12-1-drill bit inlet opening; 12-2-drill bit tank; The 12-3-nozzle of holing; The 13-lining; 13-1-lining central through hole; The 14-spring; Sound damping cover in 15-; 16-mobile; 16-1-mobile central through hole; The 17-hollow ball; 18-automatic rotation connector interfaces; The 19-sealing ring.
The specific embodiment
Embodiment, with reference to accompanying drawing 1, coal bed drilling slot pressure relief device is to be communicated with water-supply-pipe 2 on the side of water tank 1, and water-supply-pipe 2 is communicated with a side of high-pressure pump 3, the opposite side of high-pressure pump 3 is communicated with high pressure flexible rubber hose 4, dress hydraulic control valve 5 between high pressure flexible rubber hose 4 and high pressure rigid rubber pipe 7.Place's dress sebific duct propeller 6 in the middle of high pressure rigid rubber pipe 7, another termination of high pressure rigid rubber pipe 7 connects automatic rotation joint 8, and automatic rotation joint 8 is flexibly connected and uses sealing ring 19 sealings with automatic rotation connector interfaces 18.Automatic rotation connector interfaces 18 is connected with the left end head thread of multifunctional nozzle shell body 10.At the nonmetal interior Sound damping cover 15 of the peripheral equipment of multifunctional nozzle shell body 10, the outer Sound damping cover 9 of large metal material in the peripheral equipment intensity of interior Sound damping cover 15.In the right-hand member of outer Sound damping cover 9, with outer these 10 outer-diameter threads of multifunctional nozzle, be fixedly connected with.Plug-in mounting drill bit 12 on the central through hole 10-1 of multifunctional nozzle shell body 10 Inner Front End head, establish drill bit inlet opening 12-1 in the interior rear end of drill bit 12, in the middle of drill bit 12 is interior, place establishes drill bit tank 12-2, be communicated with three parallel boring nozzle 12-3 at drill bit tank 12-2 front end, drill bit tank 12-2 rear end is communicated with drill bit inlet opening 12-1.Be provided with spring fitting groove 10-3 on the central through hole 10-1 of multifunctional nozzle shell body 10, in spring fitting groove 10-3, spring 14 is housed, the interior fixedly fitted lining cover 13 of spring 14, left side at spring 14 connects mobile 16, the right-hand member of mobile 16 is with boss, the boss of mobile 16 is used for spring fitting groove 10-3 activity spacing, at the central through hole 16-1 of mobile 16 right-hand member head, is provided with hollow ball 17.On multifunctional nozzle shell body 10 and interior Sound damping cover 15 and outer Sound damping cover 9, correspondence is established three equidistant cross sections of laying the slot nozzle, each cross section correspondence is established four slot nozzle 10-2, and shell body central through hole 10-1, lining central through hole 13-1, drill bit inlet opening 12-1 all are communicated with.
The course of work of coal bed drilling slot pressure relief device is as follows: 1, start high-pressure pump 3 pressure and the flow that supply water in water-supply-pipe 2 are improved, regulate hydraulic control valve 5 to specifying high pressure, current flow out from the boring nozzle 12-3 of multifunctional nozzle, realize the high pressure boring to coal seam 11; 2, after being bored into designated depth, put into hollow ball 17 from high pressure ebonite pipe 7, start high-pressure pump 3, the pressure and the flow that supply water are improved, regulate the high pressure of hydraulic control valve 5 to appointment, hollow ball 17 compresses mobile 16 under Water Pressure toward axial drill bit 12 directions, the hollow ball 17 sealing central through hole 16-1 of mobile, seal drill bit inlet opening 12-1 passage, open the water stream channel of the radially slot nozzle 10-2 on multifunctional nozzle shell body 10 and inside and outside Sound damping cover 15,9 simultaneously, realize the high pressure slot; 3, after position, a certain hole slot finishes, regulate the low-pressure of hydraulic control valve 5 to appointment, hollow ball is stopped 17 sealings and is flowed to axial drilling nozzle 12-3 water stream channel, opens slot nozzle 10-2 water stream channel on 10 1 sections of multifunctional nozzle shell body simultaneously, realizes the low pressure punching; 4, after the slot punching of position, a certain hole finishes, withdraw high pressure rigid rubber pipe 7 and carry out the slot punching to next position, hole; 5, the boring slot complete after during the dismounting instrument, need first close high-pressure pump 3, carry out again dismantlement work after drill bit 12 and drilling rod internal water accumulation release pressure.
Claims (1)
1. a coal bed drilling slot pressure relief device, comprise water tank (1), water-supply-pipe (2), high-pressure pump (3), high pressure flexible rubber hose (4), hydraulic control valve (5), sebific duct propeller (6), high pressure rigid rubber pipe (7), it is characterized in that connecting automatic rotation joint (8) rear end on the right-hand member head of high pressure rigid rubber pipe (7), the other end of automatic rotation joint (8) is flexibly connected automatic rotation connector interfaces (18), and seal with sealing ring (19), the be threaded left end of multifunctional nozzle shell body (10) of automatic rotation connector interfaces (18), Sound damping cover (15) in multifunctional nozzle shell body (10) outer placed dress, Sound damping cover (9) outside the dress of the outside of interior Sound damping cover (15), fill drill bit (12) on the right side of multifunctional nozzle shell body (10), drill bit (12) is inserted in the central through hole (10-1) of multifunctional nozzle shell body (10), multifunctional nozzle shell body (10) and in, outer Sound damping cover (15, 9) on periphery, correspondence arranges three equidistant cross sections of laying slot nozzle (10-2), each cross section correspondence is equidistantly established four slot nozzles (10-2), be provided with three parallel boring nozzles (12-3) at the upper front end of drill bit (12), boring nozzle (12-3) is communicated with the drill bit tank (12-2) in drill bit (12), the upper drill bit inlet opening (12-1) of drill bit (12) is communicated with drill bit tank (12-2), be provided with spring fitting groove (10-3) in the central through hole (10-1) of multifunctional nozzle shell body (10), lining (13) is housed in spring fitting groove (10-3), lining (13) outside shock mount (11), spring (11) left side connects the right boss of mobile (16), mobile's central through hole (16-1) of mobile (16) left end locates to fill hollow ball (17), drill bit inlet opening (12-1) is communicated with lining central through hole (13-1), lining central through hole (13-1) communicates with mobile central through hole (16-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101073265A CN102619469B (en) | 2012-04-13 | 2012-04-13 | Device for hole drilling, seam cutting and pressure relief of coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101073265A CN102619469B (en) | 2012-04-13 | 2012-04-13 | Device for hole drilling, seam cutting and pressure relief of coal seam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102619469A CN102619469A (en) | 2012-08-01 |
| CN102619469B true CN102619469B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101073265A Expired - Fee Related CN102619469B (en) | 2012-04-13 | 2012-04-13 | Device for hole drilling, seam cutting and pressure relief of coal seam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106150500B (en) * | 2016-08-26 | 2018-08-10 | 中煤科工集团重庆研究院有限公司 | ultrahigh pressure hydraulic drilling, expanding and cutting integrated device |
| CN106593518B (en) * | 2017-01-05 | 2020-08-11 | 煤炭科学技术研究院有限公司 | Pulse water jet progressive grooving method in underground drill hole |
| CN109268061A (en) * | 2018-11-27 | 2019-01-25 | 山西鸿海科贸有限公司 | A kind of New Energy increases the device of cracks in coal seam |
| CN109989752B (en) * | 2019-05-13 | 2023-12-19 | 西安科技大学 | Internal injection type static broken coal bed surrounding rock pressure relief device |
| CN110159212B (en) * | 2019-06-24 | 2024-01-23 | 山东兖能泰德重工有限公司 | Anti-impact pressure relief drill rod self-rotating joint |
| CN112112580A (en) * | 2020-10-13 | 2020-12-22 | 侯江伟 | Hydraulic cave-making mechanism without withdrawing drill rod for underground drilling of coal mine |
| CN112593999B (en) * | 2020-12-24 | 2023-04-25 | 山西晋煤集团技术研究院有限责任公司 | Directional long-drilling hydraulic permeability-increasing method for soft coal seam and/or soft and hard composite coal seam |
| CN113818878A (en) * | 2021-10-28 | 2021-12-21 | 烟台杰瑞石油装备技术有限公司 | Hydraulic fracturing rock breaking method and system |
| CN114542073B (en) * | 2022-04-26 | 2022-07-29 | 矿冶科技集团有限公司 | Hard rock mining method |
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| US6050352A (en) * | 1996-11-08 | 2000-04-18 | Thompson; Michael C. | Drilling technique utilizing drilling fluids directed on low angle cutting faces |
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| CN1451839A (en) * | 2003-04-18 | 2003-10-29 | 太原理工大学 | Hydraulic drill bit capable of remote controlling drilling, slotting and deflection correction |
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| US20100243266A1 (en) * | 2009-03-26 | 2010-09-30 | Petro-Surge Well Technologies Llc | System and method for longitudinal and lateral jetting in a wellbore |
| CN201810206U (en) * | 2009-09-30 | 2011-04-27 | 重庆飞尔达机械有限责任公司 | High pressure water jet drilling and expanding integrated device |
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| CN202520224U (en) * | 2012-04-13 | 2012-11-07 | 辽宁工程技术大学 | Coal seam drilling, seam cutting and pressure releasing device |
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2012
- 2012-04-13 CN CN2012101073265A patent/CN102619469B/en not_active Expired - Fee Related
Patent Citations (9)
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|---|---|---|---|---|
| US6050352A (en) * | 1996-11-08 | 2000-04-18 | Thompson; Michael C. | Drilling technique utilizing drilling fluids directed on low angle cutting faces |
| EP0884446A2 (en) * | 1997-06-13 | 1998-12-16 | Tracto-Technik Paul Schmidt Spezialmaschinen | Drilling apparatus |
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| CN1451839A (en) * | 2003-04-18 | 2003-10-29 | 太原理工大学 | Hydraulic drill bit capable of remote controlling drilling, slotting and deflection correction |
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| CN201810206U (en) * | 2009-09-30 | 2011-04-27 | 重庆飞尔达机械有限责任公司 | High pressure water jet drilling and expanding integrated device |
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| CN102619469A (en) | 2012-08-01 |
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Granted publication date: 20131211 Termination date: 20140413 |