CN204402406U - A kind of down-hole coal bed mash gas pumping drilling prosthetic device - Google Patents
A kind of down-hole coal bed mash gas pumping drilling prosthetic device Download PDFInfo
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- CN204402406U CN204402406U CN201420843765.7U CN201420843765U CN204402406U CN 204402406 U CN204402406 U CN 204402406U CN 201420843765 U CN201420843765 U CN 201420843765U CN 204402406 U CN204402406 U CN 204402406U
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- drill bit
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- gas pumping
- coal bed
- prosthetic device
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Abstract
The utility model relates to a kind of down-hole coal bed mash gas pumping drilling prosthetic device, the utility model boring outer conduit is connected to extraction pipeline by flange and snap joint, when gas drainage under suction flow or concentration reduce amplitude larger time, dismounting flange, connect hydraulic pressure self-powered boring repair system device, the rearmounted contrainjector of hydraulic pressure self-powered drill bit forms backward jet, the onward impulse of drill bit in boring is provided, preposition forward outer shroud nozzle forms hoop jet, bit is provided, reaming and scarfing cinder power, forward inner ring nozzle forms hoop jet and central nozzle forms forward jet, scarfing cinder is provided, deslagging power.Hydraulic pressure self-powered bit exterior is shuttle-type structure, can reduce driving resistance, facilitates the taking-up of drill bit and recycles.The utility model provides simple method efficiently for inefficacy boring reparation, reaches the object extending service time of holing, increase boring service efficiency.
Description
Technical field
The utility model relates to a kind of safety of coal mines control device, particularly relates to a kind of underground coal mine inefficacy mash gas pumping drilling rapidly and efficiently prosthetic device.
Background technology
Gas pumping is control Gas Disaster and the important means realizing gas comprehensive utilization of energy.Along with the continuous increase of the pit mining degree of depth, gas pumping condition is tending towards complicated, as when high-ground stress, wall-rock crack are grown and are carried out gas pumping in area and weak seam, by geostatic stress and outer force-disturbance, the phenomenon such as collapse hole, plug-hole is often there is in boring, cause gas pumping channel blockage, gas extraction flow and concentration are extremely low.For this problem, conventional method carries out redrilling with rig according to former data of holes drilled.This method not only consuming time, cost is high, and limits by execution conditions and capacity of equipment, secondary drilling actual parameter differs comparatively large with former data of holes drilled, easily cause string hole, increase gas pumping difficulty.In addition, adopt cinder, landwaste in negative pressure sucking-off boring, the method is only applicable to the less cinder of particle, cannot discharge bulk cinder, sillar and coal slime that collapse hole causes.How removing landwaste in boring, cinder, recover hole pumping and mining ability, is ensure that drilling high-efficiency uses, the important prerequisite of the efficient extraction of gas.
At present, the domestic patent for coal mine down-hole drilling deslagging is all absorbed in deslagging or small particle diameter cinder in boring procedure.If application number is CN201210489910.1, the Chinese patent that denomination of invention is " the creeping into of a kind of coal mine down-hole drilling, anti-reflection, to repair and gas drive replaces integrated approach ", utilize flexible pipe to inject water under high pressure to clear up the cinder that caves in hole, but this invention limits by borehole conditions, flexible pipe carries comparatively difficulty in the borehole, and delivered length is shorter.For another example, publication number is CN203035257, denomination of invention is the Chinese patent that " a kind of lower hole deslagging dewatering installation of bowing to boring " and publication number are CN103557030A, denomination of invention be " under to hole dewatering installation ", all adopt to insert gutter at foot of hole, insert stack at aperture place, utilize air pressure cinder, water to be discharged by gutter.But the device used in the method is only applicable to the less cinder of particle diameter, and insert gutter in bottom, hole comparatively difficult, cannot discharge borehole collapse greater particle size cinder, rock slag.
Summary of the invention
The utility model is for overcoming the deficiencies in the prior art, the utility model proposes a kind of device be applicable to because boring collapse hole, inefficacy cause gas pumping rate to reduce, namely hydraulic pressure self-powered system and device deslagging is adopted, recover hole pumping and mining ability, the hydraulic pressure self-powered drill bit that this device adopts does not limit by borehole conditions, can foot of hole be arrived under high hydraulic drives, complete deslagging, desilting.
For achieving the above object, the utility model adopts following technical scheme: a kind of down-hole coal bed mash gas pumping drilling prosthetic device, it is characterized in that, it comprises water tank, high-pressure hydraulic pump, high-voltage tube cylinder, high pressure rotary sealing device, high-voltage tube centring ring, support one, support two, backwater slag air deflector, hydraulic pressure self-powered drill bit, backwater slag collecting box, wherein, described backwater slag air deflector connects described backwater slag collecting box, described hydraulic pressure self-powered drill bit connects one end of high-voltage tube, described high-voltage tube is by high-voltage tube centring ring fixed-direction, described high-voltage tube centring ring is fixed on support one, described backwater slag air deflector is fixed on support two, the other end of described high-voltage tube is wound on described high-voltage tube cylinder, and be connected with described high-pressure hydraulic pump by described high pressure rotary sealing device, described high-pressure hydraulic pump connects described water tank.
Further, as preferably, described high pressure rotary sealing device is connected by threeway with between described high-pressure hydraulic pump, pressure meter is provided with between described high-pressure hydraulic pump and described threeway, adopt the first pipeline to be connected between described threeway with described high pressure rotary sealing device, described threeway is also directly connected with described water tank by second pipe.
Further, as preferably, between described high-pressure hydraulic pump and described water tank, also strainer is connected with.
Further, as preferably, described hydraulic pressure self-powered drill bit comprises snap joint, drill bit shell and rotating main body, wherein, described drill bit shell is connected with described rotating main body, described drill bit shell and described rotating main body are provided with and are interconnected and the main channel be on same axis, described drill bit shell is provided with contrainjector, and described contrainjector is connected with described main channel by contrainjector water channel; Described rotating main body is provided with forward outer shroud nozzle, forward inner ring nozzle and forward central nozzle, described forward outer shroud nozzle is connected with described main channel by forward outer shroud nozzle water channel, described forward inner ring nozzle is connected with described main channel by forward inner ring nozzle water channel, described forward central nozzle is arranged on the main channel end of described rotating main body, and described snap joint is arranged on the end of the main channel of described drill bit shell.
Further, as preferably, described contrainjector, forward outer shroud nozzle and described forward inner ring nozzle are multiple.
Further, as preferably, described contrainjector, forward outer shroud nozzle and described forward inner ring nozzle are arranged on the side of respective nozzle water channel all accordingly.
Further, as preferably, described contrainjector water channel, forward outer shroud nozzle water channel and the axis of described forward inner ring nozzle water channel and the axis of described main channel all not parallel.
Further, as preferably, one end of described drill bit shell is provided with a flange, described rotating main body is provided with the cavity stretching into cooperation for described flange, described drill bit shell and described rotating main body rely on described flange and described cavity to be connected.
The beneficial effects of the utility model are, adopt hydraulic pressure self-powered drill bit to be that drill bit drives precession power, reaming power, break and deslagging power by the power conversion of water under high pressure, and hydraulic pressure self-powered drill bit can not be advanced along boring by the impact of drill hole geologic condition and angle.At boring collapse hole place, cinder is broken coal and returns out by the jet that the preposition nozzle of drill bit is formed.The major advantage of this system is, hydraulic pressure self-powered drill bit does not need additionaling power, and system is simple, easy to operate; And in boring repair process, not by the impact of borehole conditions, the scope of application is wider.
Accompanying drawing explanation
Fig. 1 is the drilling and sealing and drainage device connection diagram that use in a kind of down-hole coal bed mash gas pumping drilling restorative procedure of the present utility model;
Fig. 2 is the connection diagram of the hydraulic pressure self-powered boring repair system device used in a kind of down-hole coal bed mash gas pumping drilling restorative procedure of the present utility model;
Fig. 3 is the structural representation of the hydraulic pressure self-powered drill bit used in a kind of down-hole coal bed mash gas pumping drilling restorative procedure of the present utility model;
Wherein, 1: gas pumping is responsible for, 2: Gas explosion burns monitoring holes, 3: gas pumping arm, 4: slurry recovering tube, 5: Ma Lisan, 6: conduit, 7: baffle ring, 8: stop valve, 9: pipeline converting interface, 10: flange, 11: Grouting Pipe, 12: water tank; 13: strainer; 14: high-pressure hydraulic pump; 15: pressure meter; 16: threeway; 17: the first pipelines; 18: second pipe; 19: high-voltage tube cylinder; 20: high pressure rotary sealing device; 21: high-voltage tube centring ring; 22: support one; 23, support two: 24: backwater slag air deflector, 25: hydraulic pressure self-powered drill bit; 26: backwater slag collecting box; 27: snap joint, 28: main channel, 29: contrainjector, 30: contrainjector water channel, 31: drill bit shell, 32: rotating main body, 33: forward outer shroud nozzle water channel, 34: forward outer shroud nozzle, 35: forward inner ring nozzle water channel, 36: forward inner ring nozzle, 37: forward central nozzle.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description is carried out to the utility model.But should be appreciated that being provided only of accompanying drawing understands the utility model better, they not should be appreciated that paired restriction of the present utility model.
As shown in Figure 1-2, the utility model provides a kind of hydraulic pressure self-powered boring repair system device used in this down-hole coal bed mash gas pumping drilling restorative procedure, it comprises water tank 12, high-pressure hydraulic pump 14, high-voltage tube cylinder 19, high pressure rotary sealing device 20, high-voltage tube centring ring 21, support 1, support 2 23, backwater slag air deflector 24, hydraulic pressure self-powered drill bit 25, backwater slag collecting box 26, wherein, backwater slag air deflector 24 connects backwater slag collecting box 26, hydraulic pressure self-powered drill bit 25 connects one end of high-voltage tube, high-voltage tube is by high-voltage tube centring ring 21 fixed-direction, high-voltage tube centring ring 21 is fixed on support 1, backwater slag air deflector 24 is fixed on support 2 23, the other end of high-voltage tube is wound on high-voltage tube cylinder 19, and be connected with high-pressure hydraulic pump 14 by high pressure rotary sealing device 20, high-pressure hydraulic pump 14 connects water tank 12.
In the present embodiment, be connected by threeway 16 between high pressure rotary sealing device 20 with high-pressure hydraulic pump 14, pressure meter 15 is provided with between high-pressure hydraulic pump 14 and threeway 16, adopt the first pipeline 17 to be connected between threeway 16 with high pressure rotary sealing device 20, threeway 16 is also directly connected with water tank 12 by second pipe 18.Strainer 13 is also connected with between high-pressure hydraulic pump 14 and water tank 12.
Wherein, as shown in Figure 3, hydraulic pressure self-powered drill bit 25 comprises snap joint 27, drill bit shell 31 and rotating main body 32, drill bit shell 31 is connected with rotating main body 32, drill bit shell 31 and rotating main body 32 are provided with and are interconnected and the main channel 28 be on same axis, drill bit shell 31 is provided with contrainjector 29, contrainjector 29 is connected with main channel 28 by contrainjector water channel 30; Rotating main body 32 is provided with forward outer shroud nozzle 34, forward inner ring nozzle 36 and forward central nozzle 37, forward outer shroud nozzle 34 is connected with main channel 28 by forward outer shroud nozzle water channel 33, forward inner ring nozzle 36 is connected with described main channel 28 by forward inner ring nozzle water channel 35, forward central nozzle 37 is arranged on main channel 28 end of rotating main body 32, and snap joint 27 is arranged on the end of the main channel 28 of drill bit shell 31.
In the present embodiment, as shown in Figure 3, contrainjector 29, forward outer shroud nozzle 34 and forward inner ring nozzle 36 are multiple.Contrainjector 29, forward outer shroud nozzle 34 and forward inner ring nozzle 36 are arranged on the side of respective nozzle water channel all accordingly.Contrainjector water channel 30, forward outer shroud nozzle water channel 33 and the axis of forward inner ring nozzle water channel 35 and the axis of main channel 28 all not parallel.
For the ease of installing, one end of drill bit shell 31 being provided with a flange, rotating main body 32 being provided with the cavity stretching into cooperation for described flange, drill bit shell 31 and rotating main body 32 rely on this flange and this cavity to be connected.
When using this device, when repairing down-hole coal bed mash gas pumping drilling, concrete steps are:
(1) construction drill in coal seam, after drilling construction completes, as shown in Figure 1, after the catheter tip of drilling and sealing and drainage device installs baffle ring 7, end mounting flange 10, conduit 6 is sent into boring, and is that the Grouting Pipe 11 of 1-2m and slurry recovering tube 4 are sent in boring by length, wherein, slurry recovering tube 4 delivers to baffle ring 7 place of conduit 6 end, and the Grouting Pipe 11 that boring is outside installs stop valve 8;
(2) in drilling orifice 1m, Ma Lisan 5 is adopted to carry out sealing of hole, after solidifying, Grouting Pipe 11 is connected to grouting pump, adopt white portland cement and Portland cement mixed serum, open grouting pump to bored grouting, when having slurries to return out in slurry recovering tube 4, stop slip casting, grout cures at least 24 hours:
(3) transfer tube is connected to the conduit 6 of drilling and sealing and drainage device by flange 10, the transfer tube other end connects the gas pumping arm 3 of drilling and sealing and drainage device, gas pumping arm 3 offers Gas explosion burns monitoring holes 2, gas pumping arm 3 is connected to gas pumping supervisor 1, gas pumping supervisor 1 is connected to extraction pump, carries out gas pumping;
(4) when extraction flow or extraction concentration are down to minimum, dismounting flange 10, hydraulic pressure self-powered boring repair system device is connected at aperture place, the hydraulic pressure self-powered drill bit 25 of hydraulic pressure self-powered boring repair system device is positioned in conduit 6, open the high-pressure hydraulic pump 14 of hydraulic pressure self-powered boring repair system device, hydraulic pressure self-powered drill bit 25 under the driving of water under high pressure along boring direction rotary drilling, the jet that preposition nozzle is formed will be holed interior cinder, outside the broken also tap of rock slag, cinder, waste water is left in waste water tank by the backwater slag air deflector of described hydraulic pressure self-powered boring repair system device, when in backwater slag collecting box 26, flowing water is limpid, repair hole complete:
(5) dismantle hydraulic pressure self-powered boring repair system device, gas pumping arm 3 is connected to conduit 6 by flange 10, carries out gas drainage under suction.
Above embodiment is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill of relevant technical field; when not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (8)
1. a down-hole coal bed mash gas pumping drilling prosthetic device, it is characterized in that, it comprises water tank, high-pressure hydraulic pump, high-voltage tube cylinder, high pressure rotary sealing device, high-voltage tube centring ring, support one, support two, backwater slag air deflector, hydraulic pressure self-powered drill bit, backwater slag collecting box, wherein, described backwater slag air deflector connects described backwater slag collecting box, described hydraulic pressure self-powered drill bit connects one end of high-voltage tube, described high-voltage tube is by high-voltage tube centring ring fixed-direction, described high-voltage tube centring ring is fixed on support one, described backwater slag air deflector is fixed on support two, the other end of described high-voltage tube is wound on described high-voltage tube cylinder, and be connected with described high-pressure hydraulic pump by described high pressure rotary sealing device, described high-pressure hydraulic pump connects described water tank.
2. the down-hole coal bed mash gas pumping drilling prosthetic device of one according to claim 1, it is characterized in that, described high pressure rotary sealing device is connected by threeway with between described high-pressure hydraulic pump, pressure meter is provided with between described high-pressure hydraulic pump and described threeway, adopt the first pipeline to be connected between described threeway with described high pressure rotary sealing device, described threeway is also directly connected with described water tank by second pipe.
3. the down-hole coal bed mash gas pumping drilling prosthetic device of one according to claim 1, is characterized in that, be also connected with strainer between described high-pressure hydraulic pump and described water tank.
4. the down-hole coal bed mash gas pumping drilling prosthetic device of one according to claim 1, it is characterized in that, described hydraulic pressure self-powered drill bit comprises snap joint, drill bit shell and rotating main body, wherein, described drill bit shell is connected with described rotating main body, described drill bit shell and described rotating main body are provided with and are interconnected and the main channel be on same axis, described drill bit shell is provided with contrainjector, and described contrainjector is connected with described main channel by contrainjector water channel; Described rotating main body is provided with forward outer shroud nozzle, forward inner ring nozzle and forward central nozzle, described forward outer shroud nozzle is connected with described main channel by forward outer shroud nozzle water channel, described forward inner ring nozzle is connected with described main channel by forward inner ring nozzle water channel, described forward central nozzle is arranged on the main channel end of described rotating main body, and described snap joint is arranged on the end of the main channel of described drill bit shell.
5. the down-hole coal bed mash gas pumping drilling prosthetic device of one according to claim 4, is characterized in that, described contrainjector, forward outer shroud nozzle and described forward inner ring nozzle are multiple.
6. the down-hole coal bed mash gas pumping drilling prosthetic device of one according to claim 4, is characterized in that, described contrainjector, forward outer shroud nozzle and described forward inner ring nozzle are arranged on the side of respective nozzle water channel all accordingly.
7. the down-hole coal bed mash gas pumping drilling prosthetic device of one according to claim 4, is characterized in that, described contrainjector water channel, forward outer shroud nozzle water channel and the axis of described forward inner ring nozzle water channel and the axis of described main channel all not parallel.
8. the down-hole coal bed mash gas pumping drilling prosthetic device of one according to claim 4, it is characterized in that, one end of described drill bit shell is provided with a flange, described rotating main body is provided with the cavity stretching into cooperation for described flange, described drill bit shell and described rotating main body rely on described flange and described cavity to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420843765.7U CN204402406U (en) | 2014-12-23 | 2014-12-23 | A kind of down-hole coal bed mash gas pumping drilling prosthetic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420843765.7U CN204402406U (en) | 2014-12-23 | 2014-12-23 | A kind of down-hole coal bed mash gas pumping drilling prosthetic device |
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| CN204402406U true CN204402406U (en) | 2015-06-17 |
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| CN201420843765.7U Expired - Fee Related CN204402406U (en) | 2014-12-23 | 2014-12-23 | A kind of down-hole coal bed mash gas pumping drilling prosthetic device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481580A (en) * | 2014-12-23 | 2015-04-01 | 河南理工大学 | Method and device for repairing downhole coal-bed gas extraction drilled hole |
| CN106437521A (en) * | 2016-12-07 | 2017-02-22 | 河南理工大学 | Underground self-propelled type high-pressure grinding air jet drilling repairing device and method |
| CN107676124A (en) * | 2017-09-25 | 2018-02-09 | 中煤科工集团重庆研究院有限公司 | Pneumatic gas drainage inefficacy drilling prosthetic devices |
| CN112963111A (en) * | 2021-04-12 | 2021-06-15 | 中煤科工集团重庆研究院有限公司 | Hydraulic-driven automatic dredging device for gas extraction drill hole |
-
2014
- 2014-12-23 CN CN201420843765.7U patent/CN204402406U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481580A (en) * | 2014-12-23 | 2015-04-01 | 河南理工大学 | Method and device for repairing downhole coal-bed gas extraction drilled hole |
| CN106437521A (en) * | 2016-12-07 | 2017-02-22 | 河南理工大学 | Underground self-propelled type high-pressure grinding air jet drilling repairing device and method |
| CN106437521B (en) * | 2016-12-07 | 2019-09-13 | 河南理工大学 | A kind of underground self-advancing type high-pressure abrasive material gas jet drilling prosthetic device and method |
| CN107676124A (en) * | 2017-09-25 | 2018-02-09 | 中煤科工集团重庆研究院有限公司 | Pneumatic gas drainage inefficacy drilling prosthetic devices |
| CN107676124B (en) * | 2017-09-25 | 2019-07-30 | 中煤科工集团重庆研究院有限公司 | Pneumatic gas drainage inefficacy drilling prosthetic devices |
| CN112963111A (en) * | 2021-04-12 | 2021-06-15 | 中煤科工集团重庆研究院有限公司 | Hydraulic-driven automatic dredging device for gas extraction drill hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20151223 |
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| EXPY | Termination of patent right or utility model |