CN203296725U - Through type DTH hammer reverse circulation drilling dust collecting device - Google Patents
Through type DTH hammer reverse circulation drilling dust collecting device Download PDFInfo
- Publication number
- CN203296725U CN203296725U CN2013201466705U CN201320146670U CN203296725U CN 203296725 U CN203296725 U CN 203296725U CN 2013201466705 U CN2013201466705 U CN 2013201466705U CN 201320146670 U CN201320146670 U CN 201320146670U CN 203296725 U CN203296725 U CN 203296725U
- Authority
- CN
- China
- Prior art keywords
- hole
- drill bit
- reverse circulation
- dust
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a through type DTH hammer reverse circulation drilling dust collecting device, and belongs to drilling equipment in water conservancy and hydropower construction. The through type DTH hammer reverse circulation drilling dust collecting device comprises a through type DTH hammer which comprises a drill rod and a drill bit at the lower end of the drill rod. The drill rod is a double-wall drill rod, and comprises an inner pipe and an outer pipe. The drill bit is a reverse circulation drill bit, an air discharging groove is formed in the end portion of the drill bit, a through hole is formed in the center of the drill bit and is communicated with the inner pipe, a expanding and pressing groove communicated with the through hole is formed in the bottom of the drill bit, a bottom spraying hole communicated with the expanding and pressing groove is formed in the inner wall of the drill bit, the bottom spraying hole and the through hole are separated, and an inner spraying hole communicated with the bottom spraying hole is formed in the wall of the through hole. The upper end of the inner pipe is connected with a dust collecting bag through a slag discharging pipe. Due to the fact that the inner spraying hole and the bottom spraying hole are formed in the drill bit, a negative pressure area can be formed at the position inside the through hole and below an inner spraying hole outlet, and an area pumping upwards is formed at the portion from the hole bottom to the middle section of the inner spraying hole, rock powder and rock broken blocks at the bottom of the hole are driven to move upwards, and when a pneumatic drilling machine drills, dust can be collected at the same time.
Description
Technical field
A kind of hollow hammer hole reverse circulation drilling dust collect plant, belong to the drilling equipment in water resources and hydropower construction.
Background technology
Along with constantly pushing ahead of water resources and hydropower construction cause, water resources and hydropower construction shifts to western high mountain gorge gradually, thereby in the geological prospecting and foundation treatment engineering of western geological condition complex area, often run into extremely complicated stratum, brought new difficulty and challenge for boring and efforts at environmental protection.Particularly in drilling process, the pore-creating dust is difficult to collection and is perplexing the constructor always.Country has proposed high request to construction environment, thus to the pneumatic drilling machine boring dedusting that is subjected to dust, noise pollution administer be water power grouting industry development and working environment build in the urgent need to, be extremely urgent to the civilized construction environmental demand.
Summary of the invention:
The problem to be solved in the present invention is exactly to provide a kind of drilling apparatus that can carry out dust collection in pneumatic drilling machine pore-creating for above deficiency.Its technical scheme is as follows:
It comprises hollow hammer hole, hollow hammer hole comprises the drill bit of drilling rod and drilling rod lower end, binary channels aqueous vapor tap is installed in the drilling rod upper end, installation high-voltage wind passage on binary channels aqueous vapor tap, the high-pressure blast passage connects gas inlet rubber tube, gas inlet rubber tube connects air compressor machine, and drill bit comprises the meshing gold of draw-in groove, spline, annular groove and ball.Its key technology is that drilling rod is double-wall drill pipe, comprises core barrel and outer tube, and core barrel connects by joint with outer tube; Drill bit is reverse circulation drill bit, the drill bit end has unloads the wind groove, bit central has through hole, through hole communicates with core barrel, being provided with the diffusion groove in the drill bit bottom communicates with through hole, have end spray orifice at the drill bit inwall and communicate with the diffusion groove, end spray orifice and through hole isolation, have interior spray orifice and communicate with end spray orifice on the perforation hole wall; Connect dust bag in the core barrel upper end by scum pipe.
Compared with prior art the beneficial effect that has of the present invention is:
1, be provided with interior spray orifice on drill bit, high-pressure blast is after driving the down-hole hammer acting, and at the bottom of useless wind direction hole, direction moves, and most wind enter through hole along interior spray orifice.Due to interior spray orifice opening upwards, guiding wind moves up by force, form the back suction principle at interior spray orifice outlet position, in causing in through hole, the following position of spray orifice outlet forms negative pressuren zone, make from form the zone of the suction that makes progress at the bottom of hole to interior spout interlude, drive hole bed rock powder and catalase piece and move up.
2, be provided with end spray orifice in the drill bit bottom, when the wind that enters from end spray orifice arrives the diffusion groove, because bottom is the boring scar, the stifled wind direction surrounding of having stopped is moved, wind can only be by moving to through hole at the bottom of hole, carry rock dust, landwaste, sillar with back suction effect acting in conjunction and move to through hole, form whole anti-shuttling movement.Cause dust, landwaste etc., directly by returning on central passage, discharge hole bed rock slag smoothly, utilize dust bag to collect dust, have realized that down-hole hammer creeps into the dust that produces in process, the centralized collection of landwaste.Both avoided rock mass to repeat at the bottom of hole broken, and improved again drilling efficiency, hole wall is only very smooth under rotating effect, and not there will be the fill out resistance of dust to tiny crack, can improve draining or grouting quality.Good anti-circulating effect has solved the problem of environmental pollution that pneumatic down-the-hole hammer drilling technology is for a long time brought, and has effectively improved workman's operating environment quality and occupational health level.Drawing aperture dust leakage quantity from field trial is only 10% left and right, has improved the construction environment of operation side.The spray orifice that can see the bottom has to the effect of central passage ejection gas, the landwaste that the wind that enters from end spray orifice can the disturbance fragmentation, cooling drill bit.
3, hollow hammer hole reverse circulation drilling control of dust utilization, reached front boring, back control of dust, boring and control of dust, non-interfering proper work programme;
4, reverse circulating operating principle is that gap between drilling rod and borehole wall is less, the sound of impactor fragmented rock body can not be directly delivered on aperture and work plane, the sound of fragmented rock body must be through the drilling rod central passage, on return dust bag to aperture, pass through again the dust bag dedusting, be equivalent to a noise damper that reaches tens meters has been installed in the impactor back, on work plane, noise is little, has improved the working environment quality.
5, hollow hammer hole reverse circulation drilling control of dust technology adopts double-wall drill pipe, and the weight of double-wall drill pipe is larger, is conducive to improve rate of penetration.The speed that adopts conventional impactor to creep into (aperture Φ 110mm) is 9～12m/h, from the test statistics result, it is 12～15m/h that apparatus of the present invention are crept into speed, more conventional rotary drilling method can improve rate of penetration more than 3 times, and more conventional down-hole hammer circulation drill technology has improved 1.2 times of efficiency.
6, apparatus of the present invention integrate the efficient detritus of down-hole hammer, the full hole of fluid media (medium) counter circulate, do not stop to bore obtain continuously three kinds of advanced drilling technologies of core (sample), compatible gas creeps into, impact rotating creeps into, reverse circulation drilling three's advantage, has than gas and creeps into conventional air latent drift and creep into larger advantage and compliance widely.
7, dust bag can be by manually being quick installed at the scum pipe afterbody, and dust bag is reusable, can cut the waste.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the local enlarged diagram of Fig. 1 I section;
Fig. 3 is hollow hammer hole structural representation of the present invention;
Fig. 4 is double-wall drill pipe structural representation of the present invention;
Fig. 5 is reverse circulation drill bit structure schematic diagram of the present invention;
Fig. 6 is dust bag structural representation of the present invention;
Fig. 7 is Fig. 6 lateral view.
The specific embodiment:
Referring to Fig. 1-Fig. 7, the present invention includes hollow hammer hole, hollow hammer hole comprises the drill bit of drilling rod and drilling rod lower end, binary channels aqueous vapor tap 6 is installed in the drilling rod upper end, installation high-voltage wind passage 2 on binary channels aqueous vapor tap 6, high-pressure blast passage 2 connects gas inlet rubber tube 10, and gas inlet rubber tube 10 connects air compressor machine 1, and drill bit comprises draw-in groove 20, spline 32, annular groove 23 and ball meshing golden 16.Its key technology is that drilling rod is double-wall drill pipe 7, comprises core barrel 12 and outer tube 18, and core barrel 12 is connected with outer tube by joint 17 connections; Drill bit is reverse circulation drill bit 9, the drill bit end has unloads wind groove 19, bit central has through hole 21, through hole 21 communicates with core barrel 12, being provided with diffusion groove 24 in the drill bit bottom communicates with through hole 21, have end spray orifice 8 at the drill bit inwall and communicate with diffusion groove 24, end spray orifice 8 and through hole 21 isolation, have interior spray orifice 22 and communicate with end spray orifice 8 on the perforation hole wall; Connect dust bag 5 in core barrel 12 upper ends by scum pipe 4.
Described core barrel 12 is connected by swan-neck bent tube 3 with scum pipe 4.
Described dust bag 5 has bag 27, the sealing two ends of bag 27, and a sealing end is provided with slag notch 25 therein, at another sealing end, has control of dust aperture 29, and control of dust aperture 29 connects scum pipe 28, and scum pipe 28 connects airduct 31 by blast connection 30.
Described bag 27 adopts terylene non-woven fabric to make.
The course of work of the present invention is as follows:
High-pressure blast is after driving the down-hole hammer acting, under the effect of unloading wind groove 19, useless wind is along impactor outer wall and spline 32, arrive the drill bit top, at the bottom of again along the drill bit outer wall to hole, direction moves, and during spray orifice 22, wherein most wind enter through hole 21 along interior spray orifice in useless wind arrives, a small amount of wind moves at the bottom of still along outer wall to hole, at the bottom of entering hole along end spray orifice 8.Due to interior spray orifice 22 opening upwards, guiding wind moves up by force, because high-pressure blast has jet action, form back suction at interior spray orifice outlet position, in causing in through hole, the following position of spray orifice outlet forms negative pressuren zone, make from form the zone of the suction that makes progress at the bottom of hole to interior spout interlude, drive hole bed rock powder and catalase piece and move up.
When the wind that enters from end spray orifice arrives diffusion groove 24, because bottom is the boring scar, the stifled wind direction surrounding of having stopped is moved, and wind can only be by moving to through hole at the bottom of hole, carry rock dust, landwaste, sillar with back suction effect acting in conjunction and move to through hole, form whole anti-shuttling movement.The spray orifice that can see the bottom has to the effect of central passage ejection gas, the landwaste that the wind that enters from end spray orifice can the disturbance fragmentation, cooling drill bit.As long as simple grain rock dust (landwaste, sillar) be subject to upwards suction force and to the buoyancy sum of blowing up greater than simple grain rock dust gravity, rock dust just can move up, and is with at the end of portalling, and forms anti-circulation deslagging to scum pipe 4, collect finally by crossing 5 pairs of rock dust of dust bag, 26 grades, reach dust removing effects.The sillar that gravity is larger again repeat at the bottom of hole fragmentation reach the floating condition just can be from hole on bottom.
Claims (6)
1. hollow hammer hole reverse circulation drilling dust collect plant, comprise hollow hammer hole, hollow hammer hole comprises the drill bit of drilling rod and drilling rod lower end, binary channels aqueous vapor tap (6) is installed in the drilling rod upper end, the upper installation high-voltage wind passage (2) of binary channels aqueous vapor tap (6), high-pressure blast passage (2) connects gas inlet rubber tube (10), gas inlet rubber tube (10) connects air compressor machine (1), drill bit comprises draw-in groove (20), spline (32), annular groove (23) and the meshing gold of ball (16), it is characterized in that drilling rod is double-wall drill pipe (7), comprise core barrel (12) and outer tube (18), core barrel (12) is connected 18 with outer tube) connect by joint (17), drill bit is reverse circulation drill bit (9), the drill bit end has unloads wind groove (19), bit central has through hole (21), through hole (21) communicates with core barrel (12), being provided with diffusion groove (24) in the drill bit bottom communicates with through hole (21), have end spray orifice (8) at the drill bit inwall and communicate with diffusion groove (24), end spray orifice (8) and through hole (21) isolation, have interior spray orifice (22) and communicate with end spray orifice (8) on the perforation hole wall, connect dust bag (5) in core barrel (12) upper end by scum pipe (4).
2. hollow hammer hole reverse circulation drilling dust collect plant according to claim 1, it is characterized in that, at outer tube (18) the outer wall cover of double-wall drill pipe (7) lower end, lining (15) is arranged, insert inner casing (13) and piston (14) in lining (15), realize the distribution of Compressed Gas, piston is moved back and forth, produce impact energy.
3. hollow hammer hole reverse circulation drilling dust collect plant according to claim 2, is characterized in that, between the end of lining (15) and outer tube (18), non retern valve (11) is installed, and, in order to distribute gases at high pressure, prevents that landwaste from pouring in down a chimney into supply air line.
4. hollow hammer hole reverse circulation drilling dust collect plant according to claim 1, is characterized in that core barrel (12) is connected by swan-neck bent tube (3) with scum pipe (4).
5. hollow hammer hole reverse circulation drilling dust collect plant according to claim 1, it is characterized in that dust bag (5) has bag (27), the sealing two ends of bag (27), a sealing end is provided with slag notch (25) therein, have control of dust aperture (29) at another sealing end, control of dust aperture (29) connects scum pipe (28), and scum pipe (28) connects airduct (31).
6. hollow hammer hole reverse circulation drilling dust collect plant according to claim 5, is characterized in that bag (27) adopts terylene non-woven fabric to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201466705U CN203296725U (en) | 2013-03-27 | 2013-03-27 | Through type DTH hammer reverse circulation drilling dust collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201466705U CN203296725U (en) | 2013-03-27 | 2013-03-27 | Through type DTH hammer reverse circulation drilling dust collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296725U true CN203296725U (en) | 2013-11-20 |
Family
ID=49572743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201466705U Expired - Lifetime CN203296725U (en) | 2013-03-27 | 2013-03-27 | Through type DTH hammer reverse circulation drilling dust collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296725U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147708A (en) * | 2013-03-27 | 2013-06-12 | 中国水利水电第七工程局成都水电建设工程有限公司 | Through type down hole hammer reverse circulation drilling dust collection device |
| CN107165572A (en) * | 2017-07-18 | 2017-09-15 | 河北省地矿局国土资源勘查中心 | Matched drilling tool for implementing reverse circulation drilling by using positive circulation down-the-hole hammer and drilling method |
| CN107893636A (en) * | 2017-11-06 | 2018-04-10 | 中国地质大学（武汉） | A kind of horizontal directional drill reaming reacting cycle analogue experiment installation and experimental method |
| CN110080686A (en) * | 2019-05-14 | 2019-08-02 | 河南四方达超硬材料股份有限公司 | A kind of polycrystalline diamond down-the-hold drill bit |
| CN111379524A (en) * | 2020-03-23 | 2020-07-07 | 北京中煤矿山工程有限公司 | Raise boring equipment and process for gas cooling and slag discharging in water-deficient environment |
| CN111550179A (en) * | 2020-05-22 | 2020-08-18 | 杨忠财 | Rock-socketed wall forming system and method for continuous wall |
-
2013
- 2013-03-27 CN CN2013201466705U patent/CN203296725U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147708A (en) * | 2013-03-27 | 2013-06-12 | 中国水利水电第七工程局成都水电建设工程有限公司 | Through type down hole hammer reverse circulation drilling dust collection device |
| CN107165572A (en) * | 2017-07-18 | 2017-09-15 | 河北省地矿局国土资源勘查中心 | Matched drilling tool for implementing reverse circulation drilling by using positive circulation down-the-hole hammer and drilling method |
| CN107165572B (en) * | 2017-07-18 | 2023-09-19 | 河北省地矿局国土资源勘查中心 | Matched drilling tool for implementing reverse circulation drilling by using forward circulation down-the-hole hammer and drilling method |
| CN107893636A (en) * | 2017-11-06 | 2018-04-10 | 中国地质大学（武汉） | A kind of horizontal directional drill reaming reacting cycle analogue experiment installation and experimental method |
| CN107893636B (en) * | 2017-11-06 | 2019-05-31 | 中国地质大学（武汉） | A kind of horizontal directional drill reaming reacting cycle imitative experimental appliance and experimental method |
| CN110080686A (en) * | 2019-05-14 | 2019-08-02 | 河南四方达超硬材料股份有限公司 | A kind of polycrystalline diamond down-the-hold drill bit |
| CN111379524A (en) * | 2020-03-23 | 2020-07-07 | 北京中煤矿山工程有限公司 | Raise boring equipment and process for gas cooling and slag discharging in water-deficient environment |
| CN111379524B (en) * | 2020-03-23 | 2021-05-18 | 北京中煤矿山工程有限公司 | Raise boring equipment and process for gas cooling and slag discharging in water-deficient environment |
| CN111550179A (en) * | 2020-05-22 | 2020-08-18 | 杨忠财 | Rock-socketed wall forming system and method for continuous wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103147708A (en) | Through type down hole hammer reverse circulation drilling dust collection device | |
| CN203296725U (en) | Through type DTH hammer reverse circulation drilling dust collecting device | |
| CN101446178B (en) | Wind pressure air drilling equipment in downhole soft outbursting coal bed and process matched therewith | |
| CN105401879B (en) | Reacting cycle pneumatic down-hole hammer rotary drilling rig and its construction method | |
| CN202176355U (en) | Coal mine downhole drilling hole dust-reducing device | |
| CN111441723A (en) | Reverse circulation pipe following drilling construction device for large-diameter down-the-hole hammer | |
| CN105888540B (en) | A kind of drilling method of drilling | |
| CN205532295U (en) | Be used for soft stratum drilling center to arrange sediment injection type suction drilling tool | |
| CN105781419A (en) | Injection type suction drilling tool for cutting removal of drilling center of weak formation and using method of drilling tool | |
| CN206338031U (en) | A kind of underground self-advancing type high-pressure abrasive material gas jet drilling prosthetic device | |
| CN204663435U (en) | Reverse circulation down-hole hammer transformational structure | |
| CN204877339U (en) | Down -hole drill of effective dust fall | |
| CN201857895U (en) | Single large-diameter pneumatic DTH (down the hole) hammer | |
| CN114016896A (en) | Reverse circulation impactor and system | |
| CN201334869Y (en) | Pressured air drilling equipment used in downhole loose and soft coal seam with potential gas outburst | |
| CN211648174U (en) | Bidirectional circulating pipeline type composite slag discharging system for coring | |
| CN208203184U (en) | A kind of hole pumping and mining dust-extraction unit | |
| CN203499555U (en) | Cut-through type reverse circulation impactor | |
| CN103527078A (en) | Hole forming technology and device for bored pile construction through down-the-hole hammer | |
| CN203756030U (en) | Drill machine device | |
| CN111379524B (en) | Raise boring equipment and process for gas cooling and slag discharging in water-deficient environment | |
| CN214196171U (en) | Rotary pneumatic device of down-the-hole hammer | |
| CN207122281U (en) | A kind of major diameter is with pipe drilling equipment | |
| CN205189748U (en) | Novel rotary drilling rig | |
| CN112647840B (en) | Rotary pneumatic device of large-depth down-the-hole hammer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |