CN203584298U - Soft coal rock drilling dual-channel porous turbulent pressure relief drill - Google Patents
Soft coal rock drilling dual-channel porous turbulent pressure relief drill Download PDFInfo
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- CN203584298U CN203584298U CN201320720498.XU CN201320720498U CN203584298U CN 203584298 U CN203584298 U CN 203584298U CN 201320720498 U CN201320720498 U CN 201320720498U CN 203584298 U CN203584298 U CN 203584298U
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Abstract
The utility model discloses a soft coal rock drilling dual-channel porous turbulent pressure relief drill comprising a drill tail rotary slag discharging device, a dual-channel porous turbulent pressure relief drill rod and a dual-channel drill head. The drill tail rotary slag discharging device is connected to the dual-channel porous turbulent pressure relief drill rod, and the dual-channel drill head is mounted at the front end of the dual-channel porous turbulent pressure relief drill rod. The soft coal rock drilling dual-channel porous turbulent pressure relief drill is mainly used for drilling easily-contracting-smashing soft coal rock. The soft coal rock drilling dual-channel porous turbulent pressure relief drill is novel in design, slag discharging can be completed in an annular space in the drill rod, and drill hole slag discharging space can be effectively prevented from being influenced by drill hole contraction and damages; through porous features of the surface of the drill rod, stress between the rod and slags in a drill hole blocking area can be effectively relieved, stacked drill slags can be dispersed effectively, and heat aggregation on the surface of the drill rod can be effectively prevented.
Description
Technical field
The utility model belongs to the technical fields such as the projecting coal bed mash gas pumping drilling construction in colliery, soft rock drilling construction, is specifically related to a kind ofly for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool.
Background technology
Current, well work gas pumping is the technical way that mine gas is administered, well work gas pumping be take drilling construction as prerequisite, wherein mainly comprise the boring of this coal bed gas extraction, wear a layer mash gas pumping drilling, weak coal and rock for complex geologic conditions, during drilling construction, hole wall shrinks, destroy serious, in addition coal seam with gas spray orifice phenomenon takes place frequently, in boring, easily form and stop up section, deslagging space is lost, bit freezing, breaking of rod phenomenon is frequent, cause drilling depth shallow, drilling efficiency is low to take place frequently with drilling accident, its result has a strong impact on the safety in production in gas pumping construction speed and colliery, brought certain economic loss to ore deposit side.Current conventional drilling tool, slagging channel is the annulus between borehole wall and drilling rod, and for the weak coal and rock construction drill of complex geologic conditions, hole wall distortion and destruction are larger on the impact in hole drilling deslagging space, and boring is easily stopped up, and makes to creep into and cannot carry out.Therefore; in order to improve cherry coal rock, creep into the problems of existence, should change traditional drilling process mode, develop drilling tool and drilling process system in a kind of new hole; its core guiding theory is to innovate by drilling tool structure, the impact that protection slagging channel is not subject to boring distortion, destroys.
Utility model content
The utility model is in order to solve weak point of the prior art; provide a kind of and crept into binary channels porous turbulent flow release drilling tool for cherry coal rock; this drilling process system deslagging completes in binary channels porous turbulent flow release drilling tool; slagging channel is subject to drilling rod protection; simultaneously; the porous feature on drilling rod surface, can effectively discharge boring and stop up the stress between the region body of rod and cinder, the drilling cuttings of evacuating accumulation and prevention drilling rod surface heat accumulation, and the safety that is conducive to cherry coal rock is crept into.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, comprise that binary channels porous turbulent flow release drilling rod, binary channels drill bit, brill tailspin turn deslagging device, described brill tailspin turns deslagging device and is connected with the binary channels porous turbulent flow release drilling rod on rig, and binary channels drill bit is arranged on the front end of binary channels porous turbulent flow release drilling rod.
Described binary channels porous turbulent flow release drilling rod is comprised of the outer drilling rod body of porous, inner tube.
The outer drilling rod body of described porous is comprised of male connection, the porous body of rod and female adapter, a plurality of apertures are set on the body of rod, the shape of aperture can be designed to the polygon of circle, square or other form, male connection, female adapter can be designed to taper screw thread or flat button, and outer drilling rod external surface is set to light face, helical groove or spiral ridge.
Described inner pipe joint connects can be designed to screwed connection or socket connection, and its external diameter is less than outer drilling rod body internal diameter, guarantee to form the outer tunnel that drilling cuttings is discharged between the outer drilling rod body internal diameter of inner tube external diameter and porous, the hollow cavity of inner tube, for air intake, is the internal channel of drilling system.
Described binary channels drill bit is comprised of outer drill bit female adapter, the female adapter of air inlet core pipe, carcass and alloy blade, and joint can be designed to taper screw thread or flat button.Air inlet core pipe is arranged at bit central one end jointed rod inner tube, and the other end is connected with bit matrix central through hole, forms eye; Drill bit periphery arranges a plurality of slag inputs hole, between drill bit female adapter and air inlet core pipe, forms backflow annular space, forms the deslagging outer tunnel communicating with binary channels porous turbulent flow release drilling rod.
Described brill tailspin turns deslagging device by inlet suction port, rotation slagging joint, slagging casing forms, rotation slagging joint is connected and keeps synchronous rotary with the outer drilling rod body of porous, realize rotary drilling, inlet suction port is connected with inner tube, at the bottom of in work, air-flow enters inner tube arrival drilling hole by inlet suction port, distinguished and admirablely carry outer tunnel that drilling cuttings forms along the annulus forming between binary channels porous turbulent flow release drilling rod and inner tube and return out and enter and bore tailspin and turn deslagging device, on rotation slagging joint, slag tap is set, drilling cuttings enters slagging case along slag tap, along slag-drip opening, enter dust arrester.
For cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, construction method comprises the following steps:
1.. complete rig, drilling tool and air feed system thereof and install and be connected, utilize air supply device by the distinguished and admirable binary channels porous turbulent flow release drilling rod internal channel of sending into.In work, air intake inner tube is not rotated, and rotation slagging joint is connected and keeps synchronous rotary with the outer drilling rod body of porous, realizes rotary drilling;
2.. at the bottom of wind circulation with pressure is crossed inner tube and is arrived hole via binary channels drill bit internal channel, the drilling cuttings that the broken coal of drill bit is formed is sent into binary channels porous turbulent flow release drilling rod outer tunnel, deslagging completes in the annulus between drilling rod body and inner tube outside porous, can effectively avoid boring contraction, the impact of hole wall unstable failure on hole drilling deslagging space, the porous feature on drilling rod surface, make distinguished and admirablely inside and outside between the hole on drilling rod surface, to shuttle back and forth, drilling cuttings particle and the air-flow on drilling rod surface form strong turbulent condition, not only be beneficial to and evacuate the drilling cuttings of piling up, be conducive to drilling rod surface radiating simultaneously;
3.. the distinguished and admirable drilling cuttings that the broken coal of drill bit is formed returns out to enter with drilling rod afterbody along binary channels porous turbulent flow release drilling rod outer tunnel and is connected deslagging device, and last slag body enters deduster, completes deslagging and dedusting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model duty;
Fig. 2 is the three-dimensional structure sectional view of the utility model binary channels porous turbulent flow release drilling rod embodiment mono-;
Fig. 3 is the axial sectional view of the utility model embodiment mono-;
Fig. 4 is A-A sectional view in the middle of Fig. 3;
Fig. 5 is the utility model Fig. 3 partial enlarged drawing I;
Fig. 6 is the utility model binary channels drill bit structure sectional view;
Fig. 7 is that the utility model brill tailspin relays slag structure drawing of device;
Deslagging principle schematic when Fig. 8 is the utility model enforcement;
Hole wall release and strong turbulent anti-clogging principle schematic when Fig. 9 is the utility model enforcement;
Figure 10 is the three-dimensional structure sectional view of the utility model binary channels porous turbulent flow release drilling rod embodiment bis-;
Figure 11 is the axial sectional view of the utility model embodiment bis-;
Figure 12 is B-B sectional view in the middle of Figure 10;
Figure 13 is the utility model Figure 11 partial enlarged drawing II;
Figure 14 is the three-dimensional structure sectional view of the utility model binary channels porous turbulent flow release drilling rod embodiment tri-;
Figure 15 is the axial sectional view of the utility model embodiment tri-;
Figure 16 is C-C sectional view in the middle of Figure 15;
Figure 17 is the utility model Figure 15 partial enlarged drawing III.
The specific embodiment
Embodiment mono-: as shown in Fig. 1～Fig. 9, the utility model is a kind of creeps into binary channels porous turbulent flow release drilling tool for cherry coal rock, comprise that binary channels porous turbulent flow release drilling rod 4, binary channels drill bit 5, brill tailspin turn deslagging device 3, described brill tailspin turns deslagging device 3 and is connected with the binary channels porous turbulent flow release drilling rod 4 on rig, and binary channels drill bit 5 is arranged on the front end of binary channels porous turbulent flow release drilling rod 4.Binary channels porous turbulent flow release drilling rod 4 is comprised of the outer drilling rod body 9 of porous, inner tube 10.The outer drilling rod body 9 of porous is comprised of female adapter 13, the porous body of rod 12 and male connection 11, a plurality of apertures 16 are set on the body of rod, the shape of aperture can be designed to the polygon of circle, square or other form, and male connection 13, female adapter 11 can be designed to taper screw thread or flat button.Inner tube 10 joints connect can be designed to screwed connection or socket connection, and its external diameter is less than outer drilling rod body 9 internal diameters of porous, guarantee to form the outer tunnel 15 that drilling cuttings is discharged between outer drilling rod body 9 internal diameters of inner tube 10 external diameters and porous, the hollow cavity of inner tube, for air intake, is the internal channel 14 of drilling system.Binary channels drill bit is comprised of outer drill bit female adapter 17, air inlet core pipe female adapter 18, carcass 19 and alloy blade 20, and joint can be designed to taper screw thread or flat button.Air inlet core pipe female adapter 18 is arranged at bit central one end jointed rod inner tube 10, and the other end is connected with bit matrix central through hole, forms eye 22; Drill bit periphery arranges a plurality of slag inputs hole, between outer drill bit female adapter 17 and air inlet core pipe 18, forms backflow circular passage 21, forms the deslagging outer tunnel 15 communicating with binary channels porous turbulent flow release drilling rod.Bore tailspin and turn deslagging device 3 by inlet suction port 23, rotation slagging joint 25, slagging casing 24 forms, rotation slagging joint is connected and keeps synchronous rotary with the outer drilling rod body 9 of porous, realize rotary drilling, inlet suction port 23 is connected with inner tube 10, at the bottom of in work, air-flow enters inner tube 10 arrival drilling holes by inlet suction port 23, the distinguished and admirable drilling cuttings that carries returns out and enters and bore tailspin and turn deslagging device 3 along the outer tunnel 15 of the annulus formation forming between binary channels porous turbulent flow release drilling rod 4 and inner tube 10, on rotation slagging joint 25, slag tap 26 is set, drilling cuttings enters slagging case 24 along slag tap 26, along slag-drip opening 27, enter dust arrester 1.
For cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, construction method comprises the following steps:
Complete rig 6, binary channels porous turbulent flow release drilling rod 4, binary channels drill bit 5, drilling hole dust collector device 7 and air feed system thereof and install and be connected, utilize brill tailspin to turn deslagging device 3 by distinguished and admirable binary channels porous turbulent flow release drilling rod 4 internal channels 14 of sending into.During construction, require binary channels drill bit 5 rotation external diameters and binary channels porous turbulent flow release drilling rod 4 external diameters to approach, air intake inner tube 10 is not rotated, rotation slagging joint 25 is connected and keeps synchronous rotary with the outer drilling rod body 9 of porous, realize rotary drilling, at During Initial Stage Construction, having part drilling cuttings discharges along binary channels porous turbulent flow release drilling rod 4 space outerpaces, dust is larger, by at installation aperture, aperture dust arrester 7, realize deslagging depositing dust, follow the growth of drilling depth, the impact that shunk by boring, drilling cuttings is mainly discharged by binary channels porous turbulent flow release drilling rod outer tunnel 15;
With reference to Fig. 8, at the bottom of wind circulation with pressure is crossed inner tube and is arrived holes via binary channels drill bit internal channel 22, the drilling cuttings that the broken coal of drill bit forms is entered between drill bit female adapter 17 and air inlet core pipe 18 and is formed backflow circular passage 21 by drill bit periphery slag input hole, send into binary channels porous turbulent flow release drilling rod outer tunnel 15, deslagging completes in the annulus 15 between drilling rod body 9 and inner tube 10 outside porous, can effectively avoid boring to shrink, the impact of hole wall unstable failure on hole drilling deslagging space, the porous feature on drilling rod surface, make distinguished and admirablely inside and outside the hole 16 on drilling rod surface, to shuttle back and forth, drilling cuttings particle and the air-flow on drilling rod surface form strong turbulent condition, not only be beneficial to and evacuate the drilling cuttings of piling up, be conducive to drilling rod surface radiating simultaneously,
The distinguished and admirable drilling cuttings that the broken coal of drill bit is formed returns out to enter with drilling rod afterbody along binary channels porous turbulent flow release drilling rod 4 outer tunnels 15 and is connected deslagging device 3, on rotation slagging joint 25, slag tap 26 is set, drilling cuttings enters slagging case 24 along slag tap 26, along slag-drip opening 27, enters dust arrester 1.
Introduce the pre-anti-clogging principle of the utility model embodiment a pair of drilling rod porous turbulent flow release below:
With reference to Fig. 8, distinguished and admirablely by binary channels porous turbulent flow release drilling rod internal channel 14, entered, deslagging completes in the annulus 15 between drilling rod body 9 and inner tube 10 outside porous, deslagging space is subject to the protection of the outer drilling rod body 9 of porous, can effectively avoid boring contraction, the impact of hole wall unstable failure on hole drilling deslagging space, with reference to Fig. 9, in easy contraction, in broken cherry coal rock drilling process, when outside hole, drilling rod body 9 is wrapped, the porous feature on drilling rod surface, make a small amount of cinder of hole wall enter outer tunnel 15 along drilling rod surface aperture, can effectively discharge the stress forming between the body of rod and cinder, reduce the tangential friction force of drilling rod rotation, and distinguished and admirablely inside and outside the porous 16 on drilling rod surface, shuttle back and forth, make drilling cuttings particle and the air-flow on drilling rod surface form strong turbulent condition, drilling cuttings particle is in loose motion state, be conducive to prevent the interior drilling cuttings of outer tunnel 15 to pile up the slagging channel clogging causing, drilling cuttings particle and air-flow form strong turbulent condition simultaneously, be conducive to drilling rod surface radiating, the drilling gas burning that can assist prevention drilling rod surface high-temp to form, poisoning and the drilling rod of CO such as blows at the drilling accident.
Embodiment bis-: as shown in Figure 10～Figure 13, different from embodiment mono-is, the external surface of outer drilling rod body 9 is provided with spiral ridge 28, and spiral ridge adopts welding helical blade or plasma cladding technique, in boring Huo Zuanxue district, serious shrinking zone, during drilling rod rotation, drilling rod surface spiral ridge forms helical feed state, can realize auxiliary deslagging, simultaneously, be conducive to drilling rod surface radiating, the drilling tool high temperature of avoiding heat accumulation to form; On the other hand, the spiral ridge on drilling rod surface can effectively improve the intensity of drilling rod body 9 outside hole, has indirectly extended the application life of drilling rod.The construction method of embodiment bis-is identical with embodiment mono-.
Embodiment tri-: as shown in Figure 14～Figure 17, from embodiment mono-, different being of embodiment bis-, the external surface of outer drilling rod body 9 is provided with helical groove 29, the effect of helical groove and example two are similar, but its auxiliary deslagging ability a little less than, the drilling accidents such as its important effect is its heat sinking function in bit freezing region of performance, and the drilling gas of capable of preventing sticking region formation burns effectively in advance, boring CO is poisoning.The construction method of embodiment tri-is identical with embodiment mono-, embodiment bis-.
Claims (6)
1. for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, comprise that binary channels porous turbulent flow release drilling rod, binary channels drill bit, brill tailspin turn deslagging device, it is characterized in that: described brill tailspin turns deslagging device and is connected with the binary channels porous turbulent flow release drilling rod on rig, and binary channels drill bit is arranged on the front end of binary channels porous turbulent flow release drilling rod.
2. according to claim 1ly for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, it is characterized in that: described binary channels porous turbulent flow release drilling rod is comprised of the outer drilling rod body of porous, inner tube.
3. according to claim 2ly for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, it is characterized in that: the outer drilling rod body of described porous is comprised of male connection, the porous body of rod and female adapter, a plurality of apertures are set on the body of rod, the shape of aperture can be designed to circular or square, male connection, female adapter can be designed to taper screw thread or flat button, and outer drilling rod external surface is set to light face, helical groove or spiral ridge.
4. according to claim 2ly for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, it is characterized in that: described inner pipe joint connects can be designed to screwed connection or socket connection, and its external diameter is less than outer drilling rod body internal diameter, guarantee to form the outer tunnel that drilling cuttings is discharged between the outer drilling rod body internal diameter of inner tube external diameter and porous, the hollow cavity of inner tube, for air intake, is the internal channel of drilling system.
5. according to claim 1ly for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, it is characterized in that: described binary channels drill bit is comprised of outer drill bit female adapter, the female adapter of air inlet core pipe, carcass and alloy blade, joint can be designed to taper screw thread or flat button; Air inlet core pipe is arranged at bit central one end jointed rod inner tube, and the other end is connected with bit matrix central through hole, forms eye; Drill bit periphery arranges a plurality of slag inputs hole, between drill bit female adapter and air inlet core pipe, forms backflow annular space, forms the deslagging outer tunnel communicating with binary channels porous turbulent flow release drilling rod.
6. according to claim 1ly for cherry coal rock, creep into binary channels porous turbulent flow release drilling tool, it is characterized in that: described brill tailspin turns deslagging device by inlet suction port, rotation slagging joint, slagging casing forms, rotation slagging joint is connected and keeps synchronous rotary with the outer drilling rod body of porous, realize rotary drilling, inlet suction port is connected with inner tube, at the bottom of in work, air-flow enters inner tube arrival drilling hole by inlet suction port, distinguished and admirablely carry outer tunnel that drilling cuttings forms along the annulus forming between binary channels porous turbulent flow release drilling rod and inner tube and return out and enter and bore tailspin and turn deslagging device, on rotation slagging joint, slag tap is set, drilling cuttings enters slagging case along slag tap, along slag-drip opening, enter dust arrester.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320720498.XU CN203584298U (en) | 2013-11-15 | 2013-11-15 | Soft coal rock drilling dual-channel porous turbulent pressure relief drill |
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| CN201320720498.XU CN203584298U (en) | 2013-11-15 | 2013-11-15 | Soft coal rock drilling dual-channel porous turbulent pressure relief drill |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556940A (en) * | 2013-11-15 | 2014-02-05 | 河南理工大学 | Dual-channel porous turbulence pressure relief drilling tool for soft coal rock drilling, and construction method of drilling tool |
| CN104863503A (en) * | 2015-05-06 | 2015-08-26 | 中国石油大学(北京) | Anti-jamming drilling device based on double-wall drilling rod and downhole power drilling tool |
| CN106194041A (en) * | 2014-12-02 | 2016-12-07 | 成都宸鸿科技有限公司 | A kind of mine high efficiency drilling rod |
| CN106837179A (en) * | 2017-03-30 | 2017-06-13 | 河南理工大学 | Soft and broken seam bore expanded hole device |
| CN108442890A (en) * | 2018-05-21 | 2018-08-24 | 河南理工大学 | Deslagging drilling rod in a kind of axial notch guard aperture release |
| CN108505955A (en) * | 2018-05-21 | 2018-09-07 | 河南理工大学 | Deslagging drilling rod in a kind of guard aperture release |
| CN108798541A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Axial convex ribs cut deslagging drilling rod in the release of hole |
| CN108798540A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Spiral convex rib cuts deslagging drilling rod in the release of hole |
| CN115263208A (en) * | 2022-08-23 | 2022-11-01 | 华亭煤业集团有限责任公司 | Device for accurately collecting drilling cuttings at drilling position and drilling cuttings collecting method |
-
2013
- 2013-11-15 CN CN201320720498.XU patent/CN203584298U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556940A (en) * | 2013-11-15 | 2014-02-05 | 河南理工大学 | Dual-channel porous turbulence pressure relief drilling tool for soft coal rock drilling, and construction method of drilling tool |
| CN103556940B (en) * | 2013-11-15 | 2015-11-18 | 河南理工大学 | Binary channels porous turbulent flow release drilling tool and construction method thereof is crept into for cherry coal rock |
| CN106194041A (en) * | 2014-12-02 | 2016-12-07 | 成都宸鸿科技有限公司 | A kind of mine high efficiency drilling rod |
| CN104863503A (en) * | 2015-05-06 | 2015-08-26 | 中国石油大学(北京) | Anti-jamming drilling device based on double-wall drilling rod and downhole power drilling tool |
| CN106837179A (en) * | 2017-03-30 | 2017-06-13 | 河南理工大学 | Soft and broken seam bore expanded hole device |
| CN106837179B (en) * | 2017-03-30 | 2019-08-09 | 河南理工大学 | Soft and broken seam bore expanded hole device |
| CN108442890A (en) * | 2018-05-21 | 2018-08-24 | 河南理工大学 | Deslagging drilling rod in a kind of axial notch guard aperture release |
| CN108505955A (en) * | 2018-05-21 | 2018-09-07 | 河南理工大学 | Deslagging drilling rod in a kind of guard aperture release |
| CN108798541A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Axial convex ribs cut deslagging drilling rod in the release of hole |
| CN108798540A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Spiral convex rib cuts deslagging drilling rod in the release of hole |
| CN115263208A (en) * | 2022-08-23 | 2022-11-01 | 华亭煤业集团有限责任公司 | Device for accurately collecting drilling cuttings at drilling position and drilling cuttings collecting method |
| CN115263208B (en) * | 2022-08-23 | 2024-03-19 | 华亭煤业集团有限责任公司 | Device and method for accurately collecting drilling cuttings in drilling position |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20151118 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |