CN217106807U - Reverse circulation impactor and system - Google Patents
Reverse circulation impactor and system Download PDFInfo
- Publication number
- CN217106807U CN217106807U CN202123192959.4U CN202123192959U CN217106807U CN 217106807 U CN217106807 U CN 217106807U CN 202123192959 U CN202123192959 U CN 202123192959U CN 217106807 U CN217106807 U CN 217106807U
- Authority
- CN
- China
- Prior art keywords
- impactor
- slag
- coring
- reverse circulation
- collecting
- 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.)
- Withdrawn - After Issue
Links
- 239000002893 slag Substances 0.000 claims description 109
- 239000011435 rock Substances 0.000 claims description 46
- 238000007599 discharging Methods 0.000 claims description 21
- 238000005553 drilling Methods 0.000 abstract description 39
- 239000003570 air Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 27
- 230000008569 process Effects 0.000 description 23
- 239000002184 metal Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 6
- 239000013049 sediment Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000004566 building material Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a reverse circulation impactor and a system, wherein the reverse circulation impactor comprises a drill rod part and a coring part; the drill rod component and the coring component are integrally formed, and the drill rod component is arranged above the coring component; the coring component comprises a coring impactor; the bottom of the barrel body of the coring impactor is in a circular ring shape, and a plurality of reverse circulation sub down-the-hole hammers are arranged on the circular ring at intervals; the drill rod component is used for providing a high-pressure air channel for the coring impactor. The device and the system have simple structure, safety, effectiveness, reliability and simple and convenient operation, can effectively improve the drilling efficiency of the large-caliber impacter, and reduce the cost consumed by the drilling tool.
Description
Technical Field
The utility model relates to a drilling machine technical field especially relates to a reverse circulation impacter and device.
Background
The down-the-hole drill is a construction engineering device for piling holes, is suitable for engineering blast hole drilling operations such as metallurgy, coal, building materials, stone materials, railways, hydropower construction, national defense construction, earthwork and the like, has the characteristics of high drilling efficiency, wide application range and the like compared with common rock drills, and is a rock drilling device which is generally used at present.
Along with the development of industries such as metallurgy, coal, building materials, railways, hydropower construction, national defense construction, earthwork and the like, the drilling construction has more requirements on the diameter of 600 mm-1200 mm and over 1200mm,
at present, a large-caliber impacter appears on the market, when the large-caliber impacter drills a large-caliber hole, particularly when hard rock is drilled, the drilling efficiency is obviously reduced, the cost consumed by a drilling tool is obviously improved, and the drilling tool comprises rock slag discharge, air pollution, water and soil pollution and damage to the surrounding environment.
Therefore, it is an urgent need to solve the problem of the art to provide a method for effectively improving the drilling efficiency of a large-diameter impactor and reducing the cost consumed by a drilling tool.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reverse circulation impacter and system, the device and system simple structure, safe, effective, reliable and easy and simple to handle, can effectual improvement heavy-calibre impacter's drilling efficiency to reduce the cost that the drilling tool consumed.
Based on above purpose, the utility model provides a technical scheme as follows:
a reverse circulation impactor comprises a drill rod component and a coring component;
the drill rod component and the coring component are integrally formed, and the drill rod component is arranged above the coring component;
the coring component comprises a coring impactor;
the bottom of the barrel body of the coring impactor is in a circular ring shape, and a plurality of reverse circulation sub down-the-hole hammers are arranged on the circular ring at intervals;
the drill rod component is used for providing a high-pressure air channel for the coring impactor.
Preferably, the first and second electrodes are formed of a metal,
the coring impactor comprises a collecting pipe, a slag return hole and a joint slag discharge pipe;
the collecting pipe is vertically arranged in the inner part of the coring impactor;
the joint slag discharging pipe is L-shaped and is transversely connected with one end of the collecting pipe;
the other end of the collecting pipe close to the reverse circulation sub-down-the-hole hammer is obliquely communicated with the slag return hole.
Preferably, the first and second electrodes are formed of a metal,
the coring impactor also comprises a connector positioning sleeve and a connector positioning sleeve vent hole;
the joint positioning sleeve is arranged above the collecting pipe and is abutted against the joint slag discharge pipe;
the joint positioning sleeve vent hole is transversely arranged at the included angle between the joint deslagging pipe and the collecting pipe, and is connected with the joint positioning sleeve.
Preferably, the first and second electrodes are formed of a metal,
the coring component also comprises a slag collecting chamber;
the slag collecting chamber is connected with the longitudinal joint slag discharge pipe and is used for collecting rock slag.
Preferably, the first and second electrodes are formed of a metal,
the coring component further comprises a gas chamber;
the air chamber sets up slag collecting chamber below, just the air chamber with it connects to get the core impacter, be used for to get the core impacter and carry high-pressure air.
Preferably, the first and second electrodes are formed of a metal,
the drill rod component comprises a high pressure gas channel;
the high-pressure gas channel penetrates through the slag collecting chamber and is connected with the gas chamber.
Preferably, the first and second electrodes are formed of a metal,
the drill rod component also comprises a slag discharge channel;
the slag discharging channel is communicated with the slag collecting chamber.
Preferably, the first and second electrodes are formed of a metal,
the slag discharging channel, the slag collecting chamber and the coring impacter are respectively provided with two slag discharging channels;
the two slag discharge channels, the two slag collecting chambers and the two coring impactors are symmetrically arranged on two sides of the high-pressure gas channel.
A reverse circulation impactor system comprising any one of the reverse circulation impactors described above;
the device also comprises a driving head, an air compressor and a slag collecting device;
the driving force head cover is arranged at the top of the reverse circulation impactor;
the air compressor is connected with the high-pressure gas channel through the driving power head;
the slag collecting device is connected with the slag discharging channel through the driving head.
The utility model provides a reverse circulation impacter includes two parts, and the top part is the drilling rod part, and the below part is for getting the core part, both integrated into one piece. Wherein, get and be provided with in the core part and get the core impacter, get the core impacter barrel and set up to the ring form, a plurality of reverse circulation sub-down-the-hole hammer intervals set up on the ring, and the drilling rod part is used for providing the high-pressure air passageway to getting the core impacter. In the working process, high-pressure air is injected into a drill rod component, the high-pressure air is injected into a core-taking impactor along a channel in the drill rod component, the bottom of a barrel body of the core-taking impactor is in contact with rocks, under the driving of the high-pressure air, a plurality of reverse circulation sub-down-the-hole hammers arranged at the bottom in a circular ring shape are used for performing rock drilling work, when downward rock drilling is performed, the down-the-hole hammers at the circular ring position perform rock drilling, a middle rock core also enters the barrel body of the core-taking impactor along with the middle rock core, after the rock core is filled with the barrel body of the core-taking impactor, the angle of the core-taking impactor is adjusted, and the sub-down-the hammer continues to drill until the rock core is broken through the high-pressure air. The utility model discloses a reduce the cutting area to the rock, because the rock drilling area is less, drilling efficiency obviously improves, and avoids using traditional rock drilling mode, and uses the circular cutting to get the core mode and set up sub-down-the-hole hammer and compare in the sub-down-the-hole hammer that traditional mode designed in quantity need be few a lot, can the effectual cost that reduces the drilling tool and consume.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a reverse circulation impactor provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of an M-direction coring impactor provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a coring impactor provided in an embodiment of the present invention;
fig. 4 is a schematic structural view of a coring impactor provided by an embodiment of the present invention
Fig. 5 is a schematic structural diagram of a reverse circulation impact system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides an adopt progressive mode to write.
The embodiment of the utility model provides a reverse circulation impacter. Mainly solve prior art, the drilling efficiency of rock drilling reduces, the technical problem of cost increase.
A kind of reverse circulation impacter, including the drill rod part 1 and coring part 2;
the drill rod component 1 and the coring component 2 are integrally formed, and the drill rod component 1 is arranged above the coring component 2;
the coring component 2 includes a coring impactor 21;
the bottom of the barrel of the coring impactor 21 is annular, and a plurality of reverse circulation sub-down-the-hole hammers 211 are arranged on the annular at intervals;
the drill rod assembly 1 is used to provide a high pressure air passage to the coring impactor 21.
The utility model provides a reverse circulation impacter includes two parts, and the top part is the drilling rod part, and the below part is for getting the core part, both integrated into one piece. Wherein, get and be provided with in the core part and get the core impacter, get the core impacter barrel and set up to the ring form, a plurality of reverse circulation sub-down-the-hole hammer intervals set up on the ring, and the drilling rod part is used for providing the high-pressure air passageway to getting the core impacter. In the working process, high-pressure air is injected into a drill rod component, the high-pressure air is injected into a core-taking impactor along a channel in the drill rod component, the bottom of a barrel body of the core-taking impactor is in contact with rocks, under the driving of the high-pressure air, a plurality of reverse circulation sub-down-the-hole hammers arranged at the bottom in a circular ring shape are used for performing rock drilling work, when downward rock drilling is performed, the down-the-hole hammers at the circular ring position perform rock drilling, a middle rock core also enters the barrel body of the core-taking impactor along with the middle rock core, after the rock core is filled with the barrel body of the core-taking impactor, the angle of the core-taking impactor is adjusted, and the sub-down-the hammer continues to drill until the rock core is broken through the high-pressure air. The utility model discloses a reduce the cutting area to the rock, because the rock drilling area is less, drilling efficiency obviously improves, and avoids using traditional rock drilling mode, and uses the circular cutting to get the core mode and set up sub-down-the-hole hammer and compare in the sub-down-the-hole hammer that traditional mode designed in quantity need be few a lot, can the effectual cost that reduces the drilling tool and consume.
Preferably, the first and second electrodes are formed of a metal,
the coring impactor 21 comprises a collecting pipe 212, a slag return hole 213 and a joint slag discharge pipe 214;
the collection tube 212 is disposed vertically within the interior of the coring impactor 21;
the joint slag discharge pipe 214 is L-shaped, and the joint slag discharge pipe 214 is transversely connected with one end of the collecting pipe 212;
the other end of the collecting pipe 212 close to the reverse circulation sub-down-the-hole hammer 211 is obliquely communicated with the slag return hole 213.
In the actual application process, the coring impactor is also provided with a collecting pipe, a slag return hole and a joint slag discharge pipe. Wherein, gather the vertical setting of pipe in getting core impacter inside, connect row's sediment pipe and be the L type, the horizontal joint row's sediment pipe is connected with gathering pipe one end, gathers the other end and the anti-slag hole slant intercommunication of pipe. In the working process, the coring impactor forms a closed space under the action of high-pressure gas in the process of contacting with rocks, after the coring impactor rises, the gas forms pressure difference, rock slag generated during rock drilling is driven to obliquely enter the collecting pipe through the slag return hole, and under the action of the pressure difference, the rock slag rises from the collecting pipe and is discharged through the joint slag discharge pipe, so that the pollution of the rock slag to air, water and soil and the surrounding environment is reduced.
Preferably, the first and second electrodes are formed of a metal,
the coring impactor 21 further comprises a connector positioning sleeve 215 and a connector positioning sleeve vent hole 216;
the joint positioning sleeve 215 is arranged above the collecting pipe 212 and is abutted with the joint deslagging pipe 214;
the joint positioning sleeve vent hole 216 is transversely arranged at the included angle between the joint deslagging pipe 214 and the collecting pipe 212, and the joint positioning sleeve vent hole 216 is connected with the joint positioning sleeve 215.
In the actual application process, the coring impactor is further provided with a joint positioning sleeve and a joint positioning sleeve air vent, and the joint positioning sleeve is arranged above the collecting pipe and is abutted to the joint deslagging pipe. The joint positioning sleeve vent hole is transversely arranged at the included angle of the transverse joint deslagging pipe and the collecting pipe. In the working process, because the coring impactor drills rock continuously under high-pressure gas, the joint slag discharge pipe connected with the collecting pipe continuously vibrates in the rock drilling process, and therefore rock slag is discharged inefficiently. Therefore, the joint positioning sleeve is arranged and is a conical surface, the positioning and sealing effects are achieved, and the joint positioning sleeve is matched with the joint slag discharge pipe to provide a stable slag discharge channel for the coring impactor. Meanwhile, a joint positioning sleeve vent hole is further arranged for enabling the coring impactor to receive and transmit high-pressure gas, so that the coring impactor works normally.
Preferably, the first and second electrodes are formed of a metal,
the coring component 2 also comprises a slag collection chamber 22;
the slag collection chamber 22 is connected to a longitudinal joint slag discharge pipe 214 for collecting rock slag.
In the actual application process, the coring component is also provided with a slag collecting chamber, and the slag collecting chamber is connected with the slag discharging pipe. In the working process, rock slag enters the slag discharging pipe from the slag discharging hole to move upwards under the driving of the air pressure difference and finally enters the slag collecting chamber.
Preferably, the first and second electrodes are formed of a metal,
the coring component 2 also comprises an air chamber 23;
the air chamber 23 is arranged below the slag collecting chamber 22, and the air chamber 23 is connected with the coring impactor 21 and used for conveying high-pressure air to the coring impactor 21.
In the actual application process, it still is provided with the air chamber to get the core part, and the air chamber setting is in the below of album sediment room, and the air chamber is connected with coring impacter, to coring impacter and carry high-pressure air. In the working process, high-pressure air enters the air chamber through the drill rod component and is injected into the coring impactor through the air chamber to drive the coring impactor to work.
Preferably, the first and second electrodes are formed of a metal,
the drill rod part 1 comprises a high pressure gas channel 11;
the high-pressure gas channel 11 passes through the slag collecting chamber 22 and is connected with the gas chamber 23.
In the practical application process, the drill rod component is provided with a high-pressure gas channel, and the high-pressure gas channel penetrates through the slag collecting chamber to be connected with the gas chamber. In the working process, high-pressure gas is injected into the coring impactor through a high-pressure gas channel in the drill rod component and a gas chamber in the coring component by a gas compressor and the like, and the sub-down-the-hole hammer is driven to drill rock.
Preferably, the first and second electrodes are formed of a metal,
the drill rod component 1 further comprises a slag discharge channel 12;
the slag discharge passage 12 communicates with the slag collection chamber 22.
In the practical application process, the drill rod component is also provided with a slag discharge channel which is communicated with the slag collection chamber. In the working process, the slag collecting device and other equipment are connected with the slag discharging channel, and rock slag in the slag discharging chamber is discharged into the slag collecting device through the slag discharging channel, so that the rock slag is collected and cleaned, and the pollution to the environment in the rock drilling process is reduced.
Preferably, the first and second electrodes are formed of a metal,
two slag discharging channels 12, two slag collecting chambers 22 and two coring impactors 21 are arranged;
two slag discharge channels 12, two slag collecting chambers 22 and two coring impactors 21 are symmetrically arranged at two sides of the high-pressure gas channel 11.
In the practical application process, two slag discharging channels, two slag collecting chambers and two core taking impactors are arranged, and the two slag discharging channels, the two slag collecting chambers and the two core taking impactors are symmetrically arranged on two sides of the high-pressure gas channel respectively. In the course of the work, based on the consideration of further raising the efficiency, can set up two sediment passageways, two collection sediment rooms and two and get the core impacters simultaneously, pour into high-pressure gas by the high-pressure gas passageway and supply two to get core impacters and work simultaneously, improved the efficiency that the core was got in the rock drilling greatly.
A reverse circulation impact system comprising any one of the reverse circulation impactors 1 described above;
the slag collecting device also comprises a driving head 2, an air compressor 3 and a slag collecting device 4;
the driving head 2 is covered on the top of the reverse circulation impactor 1;
the air compressor 3 is connected with the high-pressure gas channel 11 through the driving head 2;
the slag collecting device 3 is connected with a slag discharging channel 12 through a driving head 2.
In the practical application process, the reverse circulation impact device is provided with a reverse circulation impactor, a driving head, an air compressor and a slag collecting device, wherein the driving head cover is arranged at the top of the reverse circulation impactor, and the air compressor and the slag collecting device are respectively connected with a high-pressure gas channel and a slag discharging channel through the driving head. In the working process, the air compressor is started to generate high-pressure gas, the high-pressure gas finally enters the coring impactor through the driving head, the high-pressure gas pipeline and the air chamber, the coring impactor performs rock drilling work under the action of the high-pressure gas, and the generated rock slag finally enters the slag collecting device through the slag discharge hole, the slag discharge pipeline, the slag discharge chamber and the slag discharge channel under the action of air pressure difference.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is right above that the utility model provides a reverse circulation impact device and system have introduced in detail. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A reverse circulation impactor is characterized by comprising a drill rod component and a coring component;
the drill rod component and the coring component are integrally formed, and the drill rod component is arranged above the coring component;
the coring component comprises a coring impactor;
the bottom of the barrel body of the coring impactor is in a circular ring shape, and a plurality of reverse circulation sub down-the-hole hammers are arranged on the circular ring at intervals;
the drill rod component is used for providing a high-pressure air channel for the coring impactor;
the coring impactor comprises a collecting pipe, a slag return hole and a joint slag discharge pipe;
the collecting pipe is vertically arranged in the inner part of the coring impactor;
the joint slag discharging pipe is L-shaped and is transversely connected with one end of the collecting pipe;
the other end of the collecting pipe close to the reverse circulation sub-down-the-hole hammer is obliquely communicated with the slag return hole.
2. The reverse cycle impactor of claim 1,
the coring impactor also comprises a connector positioning sleeve and a connector positioning sleeve vent hole;
the joint positioning sleeve is arranged above the collecting pipe and is abutted against the joint slag discharge pipe;
the joint positioning sleeve vent hole is transversely arranged at the included angle between the joint deslagging pipe and the collecting pipe, and is connected with the joint positioning sleeve.
3. The reverse circulation impactor of claim 2,
the coring component also comprises a slag collecting chamber;
the slag collecting chamber is connected with the longitudinal joint slag discharge pipe and is used for collecting rock slag.
4. The reverse circulation impactor of claim 3,
the coring component further comprises a gas chamber;
the air chamber sets up slag collecting chamber below, just the air chamber with it connects to get the core impacter, be used for to get the core impacter and carry high-pressure air.
5. The reverse cycle impactor of claim 4,
the drill rod component comprises a high pressure gas channel;
the high-pressure gas channel penetrates through the slag collecting chamber and is connected with the gas chamber.
6. The reverse circulation impactor of claim 5,
the drill rod component also comprises a slag discharge channel;
the slag discharging channel is communicated with the slag collecting chamber.
7. The reverse cycle impactor of claim 6,
the slag discharging channel, the slag collecting chamber and the coring impacter are respectively provided with two slag discharging channels;
the two slag discharge channels, the two slag collecting chambers and the two coring impactors are symmetrically arranged on two sides of the high-pressure gas channel.
8. A reverse circulation impactor system including a reverse circulation impactor according to any one of claims 6 to 7;
the device also comprises a driving head, an air compressor and a slag collecting device;
the driving force head is covered at the top of the reverse circulation impactor;
the air compressor is connected with the high-pressure gas channel through the driving power head;
the slag collecting device is connected with the slag discharging channel through the driving head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123192959.4U CN217106807U (en) | 2021-12-16 | 2021-12-16 | Reverse circulation impactor and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123192959.4U CN217106807U (en) | 2021-12-16 | 2021-12-16 | Reverse circulation impactor and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217106807U true CN217106807U (en) | 2022-08-02 |
Family
ID=82590758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123192959.4U Withdrawn - After Issue CN217106807U (en) | 2021-12-16 | 2021-12-16 | Reverse circulation impactor and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217106807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016897A (en) * | 2021-12-16 | 2022-02-08 | 长沙黑金刚实业有限公司 | Reverse circulation impactor and system |
-
2021
- 2021-12-16 CN CN202123192959.4U patent/CN217106807U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016897A (en) * | 2021-12-16 | 2022-02-08 | 长沙黑金刚实业有限公司 | Reverse circulation impactor and system |
| CN114016897B (en) * | 2021-12-16 | 2024-05-10 | 长沙黑金刚实业有限公司 | Reverse circulation impactor and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114016896A (en) | Reverse circulation impactor and system | |
| CN217106807U (en) | Reverse circulation impactor and system | |
| 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 | |
| CN217462008U (en) | Reverse circulation impactor and system | |
| CN112727352A (en) | Gas-lift reverse circulation down-the-hole hammer drill driven by rotary drilling rig and use method thereof | |
| US3280925A (en) | Method and apparatus for impact drilling of overburden | |
| CN215057213U (en) | Rotary drill hole slag discharging and dust removing device with sealing device | |
| CN107013212A (en) | A kind of ultrasonic exciting caving (coal) device and method | |
| CN105927149B (en) | The coal bed drilling burrowing device and method of a kind of quick penetration gangue | |
| CN205765234U (en) | A kind of can the effective rig of dust in cleaning hole | |
| CN114016897A (en) | Reverse circulation impactor and system | |
| CN111764872B (en) | Coal mine underground top and bottom plate comb-shaped branch hole pipe flying construction drilling tool and construction method | |
| CN107100666B (en) | Down-blasting and up-squeezing outburst elimination and dust fall method for gas outburst coal seam coal roadway tunneling | |
| CN112727350A (en) | Using method of drill rod suspension type down-the-hole hammer drill and down-the-hole hammer drill | |
| CN209799868U (en) | Deviation correcting device that inclines is prevented in many metal mine shaft drilling | |
| CN102425370B (en) | Hole bottom oil pressure motor lithoclast combined power drilling tool construction method and device | |
| CN101864895A (en) | Positive-circulation drilling and dedusting technique of chamber down-hole hammer and double-wall pipe | |
| CN205089217U (en) | Drilling tool with shock attenuation effect | |
| CN217712429U (en) | Hollow type rapid construction drill bit suitable for hard rock stratum | |
| CN205025361U (en) | Anti - rotary drilling machine's that circulates of major diameter four impeller tooth drill bits | |
| CN107829685B (en) | Pneumatic full-section rock reamer of directional drilling machine and reaming process thereof | |
| CN217080384U (en) | Double-sleeve drilling and cleaning structure | |
| CN206632077U (en) | A kind of bionical cleaning device of Alternative manifold type pipe inwall | |
| CN101387203A (en) | Rapid dust removal method and device in tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220802 Effective date of abandoning: 20240510 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20220802 Effective date of abandoning: 20240510 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |