CN103352718A - Fully-sealed wind power slagging gas-drainage deep well drilling system and method - Google Patents

Fully-sealed wind power slagging gas-drainage deep well drilling system and method Download PDF

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CN103352718A
CN103352718A CN2013103217788A CN201310321778A CN103352718A CN 103352718 A CN103352718 A CN 103352718A CN 2013103217788 A CN2013103217788 A CN 2013103217788A CN 201310321778 A CN201310321778 A CN 201310321778A CN 103352718 A CN103352718 A CN 103352718A
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drilling
discharging
rod
slag
pipe
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CN2013103217788A
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CN103352718B (en
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韩晓明
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河南理工大学
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Abstract

The invention discloses a fully-sealed wind power slagging gas-drainage deep well drilling system and method. The fully-sealed wind power slagging gas-drainage deep well drilling system comprises a drilling rod with inner holes, an inverted-spinning smashing dust-collection drill is arranged at the front end of the drilling rod, and the rear portion of the drilling rod is connected to a drilling machine. An orifice-sealed pipe, sealing fillers and a sealed pressing cover are arranged on the drilling rod. An air inlet portion with annular section is formed between the orifice-sealed pipe and the outer wall of the drilling rod, and the air inlet portion is connected with a movable type air compressor through a first connecting pipe. The rear end of the drilling rod is connected with a second connecting pipe through a pneumatic rotary connector, the second connecting pipe is connected with a drainage conveying pipeline slagging device, and the slagging port of the slagging device is connected with a slagging cylinder. The air outlet of the slagging cylinder is connected with a gas drainage pump through a third connecting pipe, and the gas drainage pump is connected with a gas drainage pipe. According to the fully-sealed wind power slagging gas-drainage deep well drilling system and method, pressing feeding type wind force in the outer annular space of the drilling rod and the drainage type wind force of the inner holes of the drilling rod can be utilized to discharge the coal scraps smoothly to carry out solid-gas separation, fully-sealed type wind power scrap discharge is achieved, the fact that hole-drilling operation is conducted continuously and safely is ensured, and working efficiency is improved.

Description

The totally-enclosed wind power slag-discharging deep well drilling system and method that draws out methane
Technical field
The present invention relates to colliery soft projecting coal bed draw out methane hole-drilling system and method, relate in particular to the deep well drilling pore-forming system and method without coal dust and drawing-off gas pollution for the soft projecting coal bed totally-enclosed wind power slag-discharging in colliery.
Background technology
Adopting boring to carry out gas pumping is one of main method of gas control, also is the basis of comprehensive utilization gas.Single coal bed exploitation projecting mine in high gas, coal and gas outburst mine and the exploitation of unprotect layer; the main region outburst prevention measures that coal-bed gas is stope is taken out in the boring of construction concordant in advance, and the degree of depth of holing in the coal seam has then determined the extraction efficient of gas and the significant degree of improvement.
China in soft drilling depth major part in projecting coal bed below 100 meters, trace it to its cause, just be soft projecting coal bed in pyrolysis, suffer architectonic destruction, ature of coal is soft, and gas permeability of coal seam is low, and gas bearing capacity is high, the coal seam has the softening characteristics of moisture expantion, rib opposing external environment disturbance ability.Utilize conventional bore operation method when soft projecting coal bed middle construction extraction borehole, the frequent phenomenons such as hole, plug-hole, spray orifice and crown drill of collapsing are not also improved the technical requirements that feasible technology and supporting drilling tool satisfy the deep hole pore-forming of the soft projecting coal bed boring that draws out methane at present.
Because weak seam has the softening characteristics of moisture expantion, present conventional bore operation method all adopts the dry method drilling technique of compressed air drifting dust, namely utilize compressed air to blow at the bottom of the hole from the endoporus of drilling rod, the ickings and the compressed air that produce when drill bit is crept into are carried along the annular space (annular space) between drilling rod and hole wall together.Because the coarse injustice of hole wall, comparison of resistance is large in the air-flow conveying ickings process, and oarse-grained ickings produces local accumulation easily in annular space, thereby causes the phenomenons such as plug-hole and crown drill.Simultaneously, the air-flow that contains ickings that sprays along annular space can cause the operating environment of work plane to pollute, to operating personnel's healthy harm.
In addition, the air-flow gas density of ejection is high, when running into the condition such as high temperature, static and naked light, has the danger that gas and coal-dust explosion occur.At present, mainly adopt the method that orifice dust catcher is set in the aperture to carry out depositing dust, such as multi-stage non-powered orifice dust remover (200920032546.X), mine wet-type tying deduster (200620110816.0) and extraction drilling dust collecting device (201110296642.7) etc.Special mining suction drill for coal mine (201110075077.1) then utilizes the laying dust bag to realize reducing the purpose of coal dust.But the said equipment is because volume is large, removes fast, dress and difficult, is difficult to adapt to the demand of bore position frequent.Simultaneously,, still be discharged in the air of operating environment through after the dedusting by the air-flow of the annular space between drilling rod and hole wall ejection, cause face gas concentration high, when running into the condition such as high temperature, static and naked light, have the danger that gas explosion occurs.In addition, special mining suction drill for coal mine (201110075077.1) is although be set with multi-stage filter core in the cavity at drill bit position, but in the process of creeping into continuously, oarse-grained ickings is very fast just can be stopped up filter core, making drill bit cut fallen ickings can't be siphoned away by wind-force, and what make that drill bit can't realize holing creeps into operation continuously.
Summary of the invention
The object of the present invention is to provide a kind of totally-enclosed wind power slag-discharging deep well drilling system that draws out methane.
 
For achieving the above object, the draw out methane structure of deep well drilling system of totally-enclosed wind power slag-discharging of the present invention is: take drilling direction as forward direction, comprise the drilling rod that is provided with endoporus, this drilling rod comprises the hollow drill pipe section that is screwed onto successively more than two sections together; The front end of drilling rod is provided with backpitch and pulverizes the dust suction drill bit, and the rear portion of drilling rod is connected on the rig; Coaxial sleeve is provided with the orifice sealing pipe on the drilling rod at drilling orifice place, and the orifice sealing pipe is by extending to outside the boring in the boring, and the drilling rod of orifice sealing pipe rear end is provided with airtight and watertight padding and airtight and watertight padding is pressed on gland between drilling rod and the orifice sealing pipe; The ringwise inlet section of Formation cross-section between orifice sealing pipe and the drilling-rod external wall, the inlet section is connected with portable air compressor by the first tube connector; The drilling rod rear end is connected with the second tube connector by the Pneumatic rotary joint, the other end of the second tube connector is connected with pump drainage transfer pipeline slag-discharging device, pump drainage transfer pipeline slag-discharging device has a slag-drip opening and a gas outlet, described slag-drip opening is connected with dregs discharge tube downwards, is interval with valve and lower valve on the dregs discharge tube; Described gas outlet is connected with gas suction pump by the 3rd tube connector, and gas suction pump is connected with the drawing-off gas pipe.
Described backpitch is pulverized the backpitch wing that the dust suction drill bit comprises connecting rod and evenly arranges more than three, and the rib section of each backpitch wing is equipped with blade; The rear end of each backpitch wing all is connected to the front end of described connecting rod, and the rear portion diameter of connecting rod is less than the main diameter of connecting rod and be formed for the connection part of jointed rod, and the peripheral surface of connection part is provided with the connection screw thread; Be provided with the axial air flue that front and back connect connecting rod in the axis position in the described connecting rod, axially the front-end and back-end of air flue all are provided with horn mouth; Be provided with the radially air flue that is connected with described axial air flue in the described connecting rod, radially air flue radially connects described connecting rod and its two ends are provided with horn mouth; Axially the horn mouth of air flue rear end is used for being connected with drilling rod, axially the horn mouth of air flue front end and radially the horn mouth at air flue two ends as air entry.
Described orifice sealing pipe is provided be used to the pressure meter of measuring place, described inlet section blast.
Described Pneumatic rotary joint is provided with vacuum meter.
Described lower valve below is provided with mine car.
Described drawing-off gas pipe is provided with the methane Concentration Measurement instrument.
Described pump drainage transfer pipeline slag-discharging device is provided with anti-clogging qi of chong channel ascending adversely mouth in its filter screen place, is connected with the 4th tube connector between described the first tube connector and the described anti-clogging qi of chong channel ascending adversely mouth; Described dregs discharge tube is provided with the tempered glass observation panel.
The present invention also aims to provide a kind of totally-enclosed wind power slag-discharging deep well drilling method that draws out methane.
For achieving the above object, the totally-enclosed wind power slag-discharging of the present invention deep well drilling method that draws out methane utilizes the above-mentioned totally-enclosed wind power slag-discharging deep well drilling system that draws out methane to carry out, step is as follows: one, be drilled with a sector hole and the orifice sealing tube portion is inserted in this hole at soft projecting coal bed rib, and to sealing or shutoff between orifice sealing pipe and the hole wall, form orifice sealing; Two, drill bit one side of the hollow drill pipe of rig clamping is inserted the aperture sealed tube, between drilling rod and orifice sealing pipe, airtight and watertight padding is installed, and use gland to compress; Three, utilize the first tube connector that the pressure wind air inlet port on the orifice sealing pipe is connected with portable air compressor; Four, in the rear end of the hollow drill pipe of rig clamping the Pneumatic rotary joint is installed, and is utilized the second tube connector that the Pneumatic rotary joint is connected with pump drainage transfer pipeline slag-discharging device; Five, close lower valve on the dregs discharge tube, open valve; Six, utilize the 3rd tube connector that the outlet of pump drainage transfer pipeline slag-discharging device is connected with the air inlet port of portable gas suction pump.Seven, according to the gas bearing capacity in the detected portable gas suction pump institute pump drainage gas of methane Concentration Measurement instrument, drawing-off gas pipe access mine is drawn out methane in pipeline system or the nearest mine return air tunnel; Eight, open portable gas suction pump, observe numerical value shown in the vacuum meter; Nine, open portable air compressor, observe numerical value shown in the pressure meter; Ten, start rig and drive drilling rod, creep into operation for drilling rod provides moment of torsion and thrust; 11, after rod boring reaches certain-length, the Pneumatic rotary joint of hollow drill pipe is backed out, end at hollow drill pipe utilizes thread connection that the new hollow drill pipe section of one joint is installed, drilling rod is lengthened, and Pneumatic rotary joint and tube connector be connected in the end of the hollow drill pipe of lengthening, further creep into operation; 12, finish needed drilling depth after, drilling rod risen pulls out.
In creeping into operation process, observe ickings amount in the slag-discharging device by the tempered glass observation panel on the dregs discharge tube, whether the operator determines deslagging according to the ickings amount; During deslagging, close first and close valve, open again lower valve and carry out deslagging, the ickings mine car of directly packing into; After the ickings discharging finishes, close first lower valve, open again valve.
Utilize the 4th tube connector to connect the anti-clogging qi of chong channel ascending adversely mouth of the first tube connector and pump drainage transfer pipeline slag-discharging device, in creeping into operation process, regularly utilize compressed air that the filter screen in the slag-discharging device is washed away cleaning, prevent filter net jam.
The present invention has following advantage:
(1) the totally-enclosed wind power slag-discharging of the present invention deep well drilling system and method that draws out methane adopts backpitch to pulverize the dust suction drill bit to break rock and creep into operation, and the blade on the drill bit wing gets off coal petrography cut from the rib.The ickings that particle is large is reversed under the effect of backpitch wing pushes hole ground coal wall to, under the common extruding and cut of backpitch wing and blade, the ickings quilt that particle is large is further broken, formation is suitable for the tiny coal dust of particle that gas is carried, thereby can utilize swimmingly air-flow that ickings is extracted out.
(2) this system carries out the conveying of pressure sending type strength by the annular space between hollow drill pipe and hole wall (annular space), endoporus by hollow drill pipe carries out the conveying of pump-drainage type strength, under the acting in conjunction of drilling rod rotation, positive and negative blast and backpitch wing, drill bit place at the bottom of the coal bed drilling hole forms strong air-flow vortex, make the tiny coal dust of particle be suspended in fully in the air-flow, and under the gas negative pressure effect of hollow drill pipe endoporus, tiny coal dust discharges through the endoporus that air entry is inhaled into drilling rod.The chip removal mode of this system can avoid the channel of chip removal that causes because of the hole of collapsing in the conventional borehole operation process to stop up and the phenomenon such as bit freezing.Simultaneously, under the effect of gas negative pressure, the gas that rib can be parsed promptly discharges through the hollow drill pipe endoporus in air-flow vortex and hollow drill pipe endoporus, thereby avoids the generation of the phenomenons such as crown drill, spray orifice and coal big gun.
(3) this system is in the process of carrying out the conveying of pressure sending type strength by the annular space between hollow drill pipe and hole wall, the cinder that drops from hole wall because of reasons such as drilling rod vibrations can be transported to drill bit, the ickings that particle is large is pushed to rib under the effect of backpitch wing, under the further extruding and cut of backpitch wing and blade, the ickings quilt that particle is large is further broken, formation is suitable for the tiny coal dust of particle that gas is carried, the coal dust that particle is little then enters into the air-flow vortex, and the endoporus that sucks drilling rod through the drill bit air entry carries out chip removal.The phenomenons such as hole and plug-hole of collapsing in the annular space between drilling rod and hole wall have so just been exempted from the conventional borehole system job process.
(4) this system can in bore operation, realize the operation of totally enclosed type deslagging.Utilize pump drainage transfer pipeline slag-discharging device that ickings entrained in the delivery air is carried out dust removal by filtration, and ickings kept in slag-discharging device, wait when reaching certain storage capacity, by operating personnel by the upper and lower valve of operation, ickings is discharged in the mine car, realizes the ickings discharging of revealing without gas.According to the gas bearing capacity in the portable gas suction pump institute pump drainage gas, with the delivery air after the dust removal by filtration through the drawing-off gas pipe access mine of portable gas suction pump draw out methane pipeline system or nearest mine return air tunnel.This system has realized the totally enclosed type wind power slag-discharging, has avoided the conventional borehole system air-flow gassy to be discharged into the gas bearing capacity that causes in the operating environment in tunnel transfinites and the phenomenons such as gas and coal-dust explosion.
(5) this system compressed air that also can utilize portable air compressor to provide regularly washes away the filter screen in the pump drainage transfer pipeline slag-discharging device fast by anti-clogging qi of chong channel ascending adversely mouth, avoid long-play to cause filter screen by the phenomenon that the granule coal dust stops up, ensured the unimpeded of wind power slag-discharging transfer pipeline.
The characteristics that the present invention gives prominence to are to utilize pump-drainage type wind-force that pressure sending type wind-force that portable air compressor forms at the drilling rod outer ring space and gas suction pump form at drill pipe bore with the smooth and easy discharge of ickings and carry out solid and gas and separates, the chip removal of realization totally enclosed type wind-force.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation that backpitch is pulverized the dust suction drill bit among the present invention.
The specific embodiment
Among the present invention take drilling direction as forward direction.
As depicted in figs. 1 and 2, the totally-enclosed wind power slag-discharging of the present invention deep well drilling system that draws out methane comprises the drilling rod 8 that is provided with endoporus, and this drilling rod 8 comprises the hollow drill pipe section that is screwed onto successively more than two sections together; The front end of drilling rod 8 is provided with backpitch and pulverizes dust suction drill bit 13, and the rear portion of drilling rod 8 is connected on the rig 7.
Coaxial sleeve is provided with orifice sealing pipe 11 on the drilling rod 8 at drilling orifice place, orifice sealing pipe 11 is by extending to outside the boring in the boring, and the drilling rod 8 of orifice sealing pipe 11 rear end is provided with airtight and watertight padding 10 and airtight and watertight padding 10 is pressed on gland 9 between drilling rod 8 and the orifice sealing pipe 11; The ringwise inlet section 32 of Formation cross-section between orifice sealing pipe 11 and drilling rod 8 outer walls, inlet section 32 is connected with portable air compressor 1 by the first tube connector 14.
Drilling rod 8 rear ends are connected with the second tube connector 16 by Pneumatic rotary joint 5, the other end of the second tube connector 16 is connected with pump drainage transfer pipeline slag-discharging device 3, pump drainage transfer pipeline slag-discharging device 3 has a slag-drip opening 20 and a gas outlet 21, described slag-drip opening 20 is connected with dregs discharge tube 27 downwards, is interval with valve 18 and lower valve 19 on the dregs discharge tube 27; The gas outlet 21 of described pump drainage transfer pipeline slag-discharging device 3 is connected with gas suction pump 2 by the 3rd tube connector 22, and gas suction pump 2 is connected with drawing-off gas pipe 23, and drawing-off gas pipe 23 is provided with drawing-off gas valve 24.
 
Such as Fig. 2 and shown in Figure 1, described backpitch is pulverized the backpitch wing 132 that dust suction drill bit 13 comprises connecting rod 135 and (preferable range is 3-6) evenly arranges more than three, and the rib section of each backpitch wing 132 is equipped with blade 131; The rear end of each backpitch wing 132 all is connected to the front end of described connecting rod 135, and the rear portion diameter of connecting rod 135 is less than the main diameter of connecting rod 135 and be formed for the connection part 136 of jointed rod 8, and the peripheral surface of connection part 136 is provided with and connects screw thread 134; Be provided with the axial air flue 137 that front and back connect connecting rod 135 in the axis position in the described connecting rod 135, axially the front-end and back-end of air flue 137 all are provided with horn mouth; Be provided with the radially air flue 138 that is connected with described axial air flue 137 in the described connecting rod 135, radially air flue 138 radially connects described connecting rod 135 and its two ends are provided with horn mouth; Axially the horn mouth of air flue 137 rear ends is used for being connected with drilling rod 8, axially the horn mouth of air flue 137 front ends and radially the horn mouth at air flue 138 two ends as air entry 133.
 
Described orifice sealing pipe 11 is provided be used to the pressure meter 12 of measuring described inlet section 32 place's blast.Described Pneumatic rotary joint 5 is provided with vacuum meter 6.Described lower valve 19 belows are provided with mine car 4.Described drawing-off gas pipe 23 is provided with methane Concentration Measurement instrument 15.
 
Described pump drainage transfer pipeline slag-discharging device 3 locates to be provided with anti-clogging qi of chong channel ascending adversely mouth 31 in its filter screen (slag-discharging device 3 filter screens are prior art, and figure does not show), is connected with the 4th tube connector 17 between described the first tube connector 14 and the described anti-clogging qi of chong channel ascending adversely mouth 31; Described dregs discharge tube 27 is provided with tempered glass observation panel (the tempered glass observation panel is routine techniques, and figure does not show).
Wherein, pump drainage transfer pipeline slag-discharging device 3 preferably is erected on the mine car 4, moves according to the position of boring with mine car 4.
The invention also discloses a kind of above-mentioned totally-enclosed wind power slag-discharging totally-enclosed wind power slag-discharging of deep well drilling system deep well drilling method that draws out methane that draws out methane of using, the method is carried out successively according to the following steps:
(1) soft projecting coal bed rib be drilled with a sector hole and with orifice sealing pipe 11 partial insertions in this hole, and to sealing or shutoff between orifice sealing pipe 11 and the hole wall, form orifice sealing 25.
(2) drill bit 13 1 sides of the hollow drill pipe 8 of rig 7 clampings are inserted aperture sealed tube 11, airtight and watertight padding 10 is installed between drilling rod 8 and orifice sealing pipe 11, and use gland 9 to compress.
(3) utilize the first tube connector 14 that the pressure wind air inlet port 26 on the orifice sealing pipe 11 is connected with portable air compressor 1.
(4) in the rear end of the hollow drill pipe 8 of rig 7 clampings Pneumatic rotary joint 5 is installed, and is utilized the second tube connector 16 that Pneumatic rotary joint 5 is connected with pump drainage transfer pipeline slag-discharging device 3.
(5) close lower valve 19 on the dregs discharge tube 27, open valve 18.
(6) utilize the 3rd tube connector 22 that the outlet of pump drainage transfer pipeline slag-discharging device 3 is connected with the air inlet port of portable gas suction pump 2.
(7) according to the gas bearing capacity in detected 2 the pump drainage gases of portable gas suction pump of methane Concentration Measurement instrument 15, drawing-off gas pipe 23 access mines are drawn out methane in pipeline system or the nearest mine return air tunnel.
(8) open portable gas suction pump 2, observe numerical value shown in the vacuum meter 6.
(9) open portable air compressor 1, observe numerical value shown in the pressure meter 12.
(10) start rig 7 and drive drilling rod 8, creep into operation for drilling rod 8 provides moment of torsion and thrust;
(11) when drilling rod 8 creep into reach certain-length after, the Pneumatic rotary joint 5 of hollow drill pipe 8 is backed out, end at hollow drill pipe 8 utilizes thread connection that the new hollow drill pipe section of one joint is installed, drilling rod 8 is lengthened, and Pneumatic rotary joint 5 and tube connector 14 be connected in the end of the hollow drill pipe 8 of lengthening, further creep into operation.
(12) finish needed drilling depth after, 8 on drilling rod is pulled out.
In creeping into operation process, observe ickings amount in the slag-discharging device 3 by the tempered glass observation panel on the dregs discharge tube 27, whether the operator determines deslagging according to the ickings amount; During deslagging, close first and close valve 18, open again lower valve 19 and carry out deslagging (because upper valve 18 is in closed condition, so can realize the ickings discharging revealed without gas during deslagging), the ickings mine car 4 of directly packing into; After the ickings discharging finishes, close first lower valve 19, open again valve 18.
Utilize the 4th tube connector 17 to connect the anti-clogging qi of chong channel ascending adversely mouth 31 of the first tube connector 14 and pump drainage transfer pipeline slag-discharging device 3, in creeping into operation process, regularly utilize compressed air that the filter screen in the slag-discharging device 3 is washed away cleaning, prevent filter net jam.
The present invention utilizes the annular space (annular space) between drilling rod 8 and hole wall to blow, utilize the endoporus of drilling rod 8 rules that ickings is extracted out so that ickings on transport path not can in the past the same because of the coarse injustice of hole wall, the defeated comparison of resistance of air-flow large etc. former thereby produce at transport path and to pile up, to stop up.The present invention is by linking to each other slag-discharging device 3 with drilling rod 8 endoporus as the ickings transfer passage, avoided in the past the phenomenon that caused the work plane operating environment to pollute along the air-flow that contains ickings of annular space ejection, thereby assurance the healthy of operating personnel do not endangered.Slagging structure among the present invention (pump drainage transfer pipeline slag-discharging device 3 and corresponding connecting line) volume is little, be easy to install, and can remove fast, fills and carry, and can satisfy the demand of bore position frequent, greatly improved operating efficiency.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (10)

1. the totally-enclosed wind power slag-discharging deep well drilling system that draws out methane is characterized in that: take drilling direction as forward direction;
Comprise the drilling rod that is provided with endoporus, this drilling rod comprises the hollow drill pipe section that is screwed onto successively more than two sections together; The front end of drilling rod is provided with backpitch and pulverizes the dust suction drill bit, and the rear portion of drilling rod is connected on the rig;
Coaxial sleeve is provided with the orifice sealing pipe on the drilling rod at drilling orifice place, and the orifice sealing pipe is by extending to outside the boring in the boring, and the drilling rod of orifice sealing pipe rear end is provided with airtight and watertight padding and airtight and watertight padding is pressed on gland between drilling rod and the orifice sealing pipe; The ringwise inlet section of Formation cross-section between orifice sealing pipe and the drilling-rod external wall, the inlet section is connected with portable air compressor by the first tube connector;
The drilling rod rear end is connected with the second tube connector by the Pneumatic rotary joint, the other end of the second tube connector is connected with pump drainage transfer pipeline slag-discharging device, pump drainage transfer pipeline slag-discharging device has a slag-drip opening and a gas outlet, described slag-drip opening is connected with dregs discharge tube downwards, is interval with valve and lower valve on the dregs discharge tube; Described gas outlet is connected with gas suction pump by the 3rd tube connector, and gas suction pump is connected with the drawing-off gas pipe.
2. the totally-enclosed wind power slag-discharging according to claim 1 deep well drilling system that draws out methane, it is characterized in that: described backpitch is pulverized the backpitch wing that the dust suction drill bit comprises connecting rod and evenly arranges more than three, and the rib section of each backpitch wing is equipped with blade; The rear end of each backpitch wing all is connected to the front end of described connecting rod, and the rear portion diameter of connecting rod is less than the main diameter of connecting rod and be formed for the connection part of jointed rod, and the peripheral surface of connection part is provided with the connection screw thread; Be provided with the axial air flue that front and back connect connecting rod in the axis position in the described connecting rod, axially the front-end and back-end of air flue all are provided with horn mouth; Be provided with the radially air flue that is connected with described axial air flue in the described connecting rod, radially air flue radially connects described connecting rod and its two ends are provided with horn mouth; Axially the horn mouth of air flue rear end is used for being connected with drilling rod, axially the horn mouth of air flue front end and radially the horn mouth at air flue two ends as air entry.
3. the totally-enclosed wind power slag-discharging according to claim 2 deep well drilling system that draws out methane, it is characterized in that: described orifice sealing pipe is provided be used to the pressure meter of measuring place, described inlet section blast.
4. the totally-enclosed wind power slag-discharging according to claim 3 deep well drilling system that draws out methane, it is characterized in that: described Pneumatic rotary joint is provided with vacuum meter.
5. the totally-enclosed wind power slag-discharging according to claim 4 deep well drilling system that draws out methane, it is characterized in that: described lower valve below is provided with mine car.
6. each described totally-enclosed wind power slag-discharging deep well drilling system that draws out methane in 5 according to claim 1, it is characterized in that: described drawing-off gas pipe is provided with the methane Concentration Measurement instrument.
7. the totally-enclosed wind power slag-discharging according to claim 6 deep well drilling system that draws out methane, it is characterized in that: described pump drainage transfer pipeline slag-discharging device is provided with anti-clogging qi of chong channel ascending adversely mouth in its filter screen place, is connected with the 4th tube connector between described the first tube connector and the described anti-clogging qi of chong channel ascending adversely mouth; Described dregs discharge tube is provided with the tempered glass observation panel.
8. utilize the totally-enclosed wind power slag-discharging of the deep well drilling system deep well drilling method that draws out methane that draws out methane of totally-enclosed wind power slag-discharging described in the claim 7, it is characterized in that carrying out according to the following steps successively:
One, is drilled with a sector hole and the orifice sealing tube portion is inserted in this hole at soft projecting coal bed rib, and to sealing or shutoff between orifice sealing pipe and the hole wall, form orifice sealing;
Two, drill bit one side of the hollow drill pipe of rig clamping is inserted the aperture sealed tube, between drilling rod and orifice sealing pipe, airtight and watertight padding is installed, and use gland to compress;
Three, utilize the first tube connector that the pressure wind air inlet port on the orifice sealing pipe is connected with portable air compressor;
Four, in the rear end of the hollow drill pipe of rig clamping the Pneumatic rotary joint is installed, and is utilized the second tube connector that the Pneumatic rotary joint is connected with pump drainage transfer pipeline slag-discharging device;
Five, close lower valve on the dregs discharge tube, open valve;
Six, utilize the 3rd tube connector that the outlet of pump drainage transfer pipeline slag-discharging device is connected with the air inlet port of portable gas suction pump;
Seven, according to the gas bearing capacity in the detected portable gas suction pump institute pump drainage gas of methane Concentration Measurement instrument, drawing-off gas pipe access mine is drawn out methane in pipeline system or the nearest mine return air tunnel;
Eight, open portable gas suction pump, observe numerical value shown in the vacuum meter;
Nine, open portable air compressor, observe numerical value shown in the pressure meter;
Ten, start rig and drive drilling rod, creep into operation for drilling rod provides moment of torsion and thrust;
11, after rod boring reaches certain-length, the Pneumatic rotary joint of hollow drill pipe is backed out, end at hollow drill pipe utilizes thread connection that the new hollow drill pipe section of one joint is installed, drilling rod is lengthened, and Pneumatic rotary joint and tube connector be connected in the end of the hollow drill pipe of lengthening, further creep into operation;
12, finish needed drilling depth after, drilling rod risen pulls out.
9. the totally-enclosed wind power slag-discharging according to claim 8 deep well drilling method that draws out methane is characterized in that:
In creeping into operation process, observe ickings amount in the slag-discharging device by the tempered glass observation panel on the dregs discharge tube, whether the operator determines deslagging according to the ickings amount; During deslagging, close first and close valve, open again lower valve and carry out deslagging, the ickings mine car of directly packing into; After the ickings discharging finishes, close first lower valve, open again valve.
10. the totally-enclosed wind power slag-discharging according to claim 9 deep well drilling method that draws out methane, it is characterized in that: utilize the 4th tube connector to connect the anti-clogging qi of chong channel ascending adversely mouth of the first tube connector and pump drainage transfer pipeline slag-discharging device, in creeping into operation process, regularly utilize compressed air that the filter screen in the slag-discharging device is washed away cleaning, prevent filter net jam.
CN201310321778.8A 2013-07-29 2013-07-29 Fully-sealed wind power slagging gas-drainage deep well drilling system and method Active CN103352718B (en)

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CN104405315A (en) * 2014-12-03 2015-03-11 中铁二院工程集团有限责任公司 Separating and dedusting recovery system based on coring drilling construction
CN104653128A (en) * 2013-11-15 2015-05-27 中国石油天然气股份有限公司 Technological method for removing ash in coal-bed gas horizontal well
CN104747102A (en) * 2014-12-19 2015-07-01 陈进 Coal seam deslagging construction method and wind and water converter
CN105003216A (en) * 2015-08-11 2015-10-28 煤炭科学技术研究院有限公司 Orifice dust remover
CN106289716A (en) * 2016-08-12 2017-01-04 河南理工大学 A kind of gas-lift reverses circulation pneumatic conveying experiment device
CN107762550A (en) * 2017-11-06 2018-03-06 四川大学 A kind of mash gas pumping drilling method for sealing
CN108119064A (en) * 2017-12-15 2018-06-05 武汉科技大学 A kind of fast cooling punch device
WO2018107712A1 (en) * 2016-12-15 2018-06-21 中国矿业大学 Straight hole drilling method for drilling machine
CN109681261A (en) * 2018-08-20 2019-04-26 华北科技学院 The quick draw-out device of multichannel fire damp
CN110374668A (en) * 2019-08-29 2019-10-25 贵州大学 A kind of used based on coal mining has leakage-preventing gas drainage equipment
CN110500035A (en) * 2019-09-09 2019-11-26 中煤科工集团西安研究院有限公司 The air guided drilling of underground coal mine separates movement system and method with boring mud

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CN201771542U (en) * 2010-06-11 2011-03-23 新汶矿业集团有限责任公司 Collecting device used in drilling hole for underground gas drainage in coal mine
CN102352768A (en) * 2011-10-19 2012-02-15 中国矿业大学 Gas drainage method and equipment with alternative drainage
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CN104653128A (en) * 2013-11-15 2015-05-27 中国石油天然气股份有限公司 Technological method for removing ash in coal-bed gas horizontal well
CN103806933B (en) * 2014-01-27 2016-07-06 冀中能源峰峰集团有限公司大淑村矿 Heavily stressed soft projecting coal bed recovery method
CN103806933A (en) * 2014-01-27 2014-05-21 冀中能源峰峰集团有限公司大淑村矿 High-stress soft outburst coal seam mining method
CN104405315A (en) * 2014-12-03 2015-03-11 中铁二院工程集团有限责任公司 Separating and dedusting recovery system based on coring drilling construction
CN104747102A (en) * 2014-12-19 2015-07-01 陈进 Coal seam deslagging construction method and wind and water converter
CN104747102B (en) * 2014-12-19 2017-11-03 山东大东联石油设备有限公司 A kind of coal seam deslagging construction method and geomantic omen converter
CN105003216A (en) * 2015-08-11 2015-10-28 煤炭科学技术研究院有限公司 Orifice dust remover
CN106289716A (en) * 2016-08-12 2017-01-04 河南理工大学 A kind of gas-lift reverses circulation pneumatic conveying experiment device
WO2018107712A1 (en) * 2016-12-15 2018-06-21 中国矿业大学 Straight hole drilling method for drilling machine
CN107762550A (en) * 2017-11-06 2018-03-06 四川大学 A kind of mash gas pumping drilling method for sealing
CN107762550B (en) * 2017-11-06 2020-09-04 四川大学 Gas extraction drilling hole sealing method
CN108119064A (en) * 2017-12-15 2018-06-05 武汉科技大学 A kind of fast cooling punch device
CN108119064B (en) * 2017-12-15 2019-08-27 武汉科技大学 A kind of fast cooling punch device
CN109681261A (en) * 2018-08-20 2019-04-26 华北科技学院 The quick draw-out device of multichannel fire damp
CN110374668A (en) * 2019-08-29 2019-10-25 贵州大学 A kind of used based on coal mining has leakage-preventing gas drainage equipment
CN110500035A (en) * 2019-09-09 2019-11-26 中煤科工集团西安研究院有限公司 The air guided drilling of underground coal mine separates movement system and method with boring mud

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