CN113323661A - Pulse drilling device - Google Patents
Pulse drilling device Download PDFInfo
- Publication number
- CN113323661A CN113323661A CN202110653591.2A CN202110653591A CN113323661A CN 113323661 A CN113323661 A CN 113323661A CN 202110653591 A CN202110653591 A CN 202110653591A CN 113323661 A CN113323661 A CN 113323661A
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- Prior art keywords
- drill
- discharge
- rods
- energy storage
- rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 81
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 238000004146 energy storage Methods 0.000 claims abstract description 38
- 239000011435 rock Substances 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/18—Other methods or devices for dislodging with or without loading by electricity
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/14—Drilling by use of heat, e.g. flame drilling
- E21B7/15—Drilling by use of heat, e.g. flame drilling of electrically generated heat
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
The embodiment of the invention provides a pulse drilling device, which comprises: the device comprises a plurality of drill rods, drill bits, an energy storage capacitor and a discharge switch. All correspond on each drilling rod and be connected with energy storage capacitor, energy storage capacitor can be for the drilling rod charge rather than linking to each other, and the drill bit is connected with the drilling rod, and discharge switch is connected with the drilling rod to control the drilling rod and discharge to drill bit and broken rock, and, a plurality of drilling rods can realize charging in succession in turn and discharge. Compared with the prior art, the pulse drilling device is provided with a plurality of drill rods, and each drill rod is correspondingly connected with the energy storage capacitor. The discharge switch can correspondingly control the charging state of each drill rod. When one of the drill rods is in a discharging state, the rest drill rods are in a charging state. And after the electric energy of the drill rod in the discharging state is exhausted, the drill rod is converted into the charging state, and meanwhile, the drill rod in the full-power state is continuously discharged. From this, a plurality of drilling rods can realize charging in succession in turn and discharge, and then greatly promoted and bored efficiency.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to a pulse drilling device.
Background
The pulse discharge ore crushing is a new crushing technology developed in the past decades, and the mechanical effect of shock waves, jet flows or plasma channels generated by pulse discharge is utilized to generate destructive effect on the ore. No flying stone and no harmful substance are generated in the crushing process, and the discharging process is easy to control.
However, the currently adopted pulse drilling devices all belong to a single charge-discharge mode, the function of continuous discharge drilling cannot be really realized, and the drilling crushing efficiency is low.
Disclosure of Invention
The invention provides a pulse drilling device, which is used for solving the problems that the pulse drilling device in the prior art cannot be charged and discharged continuously and is low in drilling efficiency, and achieving the effects of enabling the pulse drilling device to be charged and discharged continuously and improving the drilling efficiency.
According to the invention, a pulse drilling device is provided, comprising: the device comprises a plurality of drill rods, drill bits, an energy storage capacitor and a discharge switch.
The energy storage capacitor is correspondingly connected to each drill rod, the drill rods connected with the energy storage capacitor can be charged by the energy storage capacitor, the drill bit is connected with the drill rods, the discharge switch is connected with the drill rods to control the drill rods to discharge to the drill bit and break rocks, and the drill rods can be continuously and alternately charged and discharged.
According to an impulse drilling device provided by the present invention, the drill bit comprises an integral drill bit. Each drill rod is connected with the integrated drill bit.
According to the pulse drilling device provided by the invention, the drill bit comprises a plurality of split drill bits. Each drill rod is provided with one split type drill bit.
According to the pulse drilling device provided by the invention, the drill bit is detachably connected with the drill rod through the drill bit connecting piece.
According to the pulse drilling device provided by the invention, each drill rod is correspondingly provided with one discharge switch so as to control the working state of each drill rod.
According to the pulse drilling device provided by the invention, the pulse drilling device further comprises a control unit. The control unit is electrically connected with each discharge switch so as to control the discharge time and the discharge sequence of each drill rod by controlling the working state of each discharge switch.
According to the pulse drilling device provided by the invention, an insulating layer is arranged between the low-pressure end and the high-pressure end at the connecting port of the drill rod and the drill bit connecting piece.
According to the pulse drilling device provided by the invention, each drill rod is at least provided with one energy storage capacitor, each energy storage capacitor is connected with a high-voltage power supply, and the high-voltage power supply is electrically connected with the control unit.
According to the pulse drilling device provided by the invention, the pulse drilling device further comprises a shell. Each energy storage capacitor and each drill rod are installed in the shell.
According to the pulse drilling device provided by the invention, a slag discharge channel is arranged in the shell. The drill rods are annularly arrayed inside the shell by taking the central point of the slag discharge channel as an array central point.
In the pulse drilling device provided by the invention, the energy storage capacitor is correspondingly connected to each drill rod and can charge the drill rods connected with the energy storage capacitor. The drill bit is connected with the drill rod, the discharge switch is connected with the drill rod to control the drill rod to discharge to the drill bit and break rock, and the drill rods can realize continuous and alternate charging and discharging.
Compared with the prior art, the pulse drilling device is provided with a plurality of drill rods, and each drill rod is correspondingly connected with the energy storage capacitor. The discharge switch can correspondingly control the charging state of each drill rod. When one of the drill rods is in a discharging state, the rest drill rods are in a charging state. And after the electric energy of the drill rod in the discharging state is exhausted, the drill rod is converted into the charging state, and meanwhile, the drill rod in the full-power state is continuously discharged. From this, a plurality of drilling rods can realize charging in succession in turn and discharge, and then greatly promoted and bored efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a pulse drilling apparatus provided by the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention providing an impulse drilling apparatus with an integral drill bit;
FIG. 3 is a schematic diagram of the operation of the pulse drilling apparatus with an integral drill bit installed;
FIG. 4 is a schematic structural diagram of a pulse drilling device provided with a split type drill bit;
FIG. 5 is a schematic view of the operation of the pulse drilling apparatus with a split bit installed;
reference numerals:
100: a drill stem; 101: a first drill rod;
102: a second drill pipe; 103: a third drill pipe;
104: a fourth drill pipe; 201: an integral drill bit;
202: a split drill bit; 300: an energy storage capacitor;
400: a discharge switch; 500: a drill bit connector;
600: a housing; 700: a slag discharge channel.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the purpose, technical solution, and advantages of the embodiments of the present invention more clear, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are a part of embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An impulse drilling device according to an embodiment of the present invention will be described with reference to fig. 1 to 5. It should be understood that the following description is only exemplary embodiments of the present invention and does not constitute any particular limitation of the present invention.
An embodiment of the present invention provides an impulse drilling apparatus, as shown in fig. 1, 2 and 4, comprising: a plurality of drill rods 100, a drill bit, an energy storage capacitor 300, and a discharge switch 400.
Wherein, each drill rod 100 is correspondingly connected with an energy storage capacitor 300. Energy storage capacitor 300 is capable of charging drill pipe 100 to which it is connected. The drill bit is connected to the drill rod 100, and the discharge switch 400 is connected to the drill rod 100 to control the discharge of the drill rod 100 to the drill bit and break the rock. And, a plurality of drill rods can realize continuous alternate charging and discharging.
Compared with the prior art, the pulse drilling device is provided with a plurality of drill rods 100, and each drill rod 100 is correspondingly provided with an energy storage capacitor 300. The discharge switch 400 can control the charging state of each drill rod 100 accordingly. When one of the drill rods 100 is in the discharging state, the remaining drill rods 100 are in the charging state. After the electric energy of the drill rod 100 in the discharging state is exhausted, the drill rod 100 is converted into the charging state, and meanwhile, the drill rod 100 in the full power state is continuously discharged. Therefore, the plurality of drill rods 100 can realize continuous alternate charging and discharging, and further the drilling efficiency is greatly improved.
For example, in one embodiment of the present invention, as shown in FIG. 1, drill pipe 100 includes a first drill pipe 101, a second drill pipe 102, a third drill pipe 103, and a fourth drill pipe 104. The first drill rod 101, the second drill rod 102, the third drill rod 103 and the fourth drill rod 104 are correspondingly configured and connected with an energy storage capacitor 300. Assuming that the discharge switch 400 first controls the first drill rod 101 to discharge to the drill bit to break rock, the second drill rod 102, the third drill rod 103 and the fourth drill rod 104 are all in a charged state. When the power of the first drill rod 101 is exhausted, the discharge switch 400 may control any one of the second drill rod 102, the third drill rod 103 and the fourth drill rod 104 to discharge to the drill bit to break the rock. At the same time, energy storage capacitor 300 charges first drill pipe 101. The drilling rod is circularly reciprocated according to the rule, so that the first drilling rod 101, the second drilling rod 102, the third drilling rod 103 and the fourth drilling rod 104 can realize continuous and alternate charging and discharging, and further the drilling efficiency is greatly improved.
It should be noted that the above-mentioned embodiment is only an illustrative embodiment of the present invention, and does not constitute any limitation to the present invention. The number of drill rods 100 can be determined by itself according to actual requirements.
For example, in one embodiment of the present invention, the drill bit comprises an integral drill bit 201. Each drill rod 100 is connected to an integral drill bit 201.
As shown in fig. 2 and 3, the pulse drilling apparatus includes an integral drill bit 201. A plurality of drill rods 100 are each connected to the integrated drill bit 201. Any drill rod 100 may be discharged to the integrated drill bit 201 to break rock. The pulse drilling device provided with the integrated drill bit 201 can realize continuous drilling work under the condition of small diameter and the same energy.
For another example, in one embodiment of the present invention, the drill bit comprises a plurality of split drill bits 202. Each drill rod 100 is configured to have a split drill bit 202 attached thereto.
As shown in fig. 4 and 5, the impulse drilling apparatus includes a plurality of split bits 202. The number of split drill bits 202 is equal to the number of drill rods 100. That is, a split drill bit 202 is attached to each drill rod 100. Each drill rod 100 can be discharged onto the respective split bit 202 connected thereto to break rock. The pulse drilling apparatus mounted with the split type drill bit 202 can achieve continuous drilling work with small energy and large diameter.
In one embodiment of the present invention, the drill bit is removably coupled to the drill pipe 100 via a drill bit coupling 500.
According to the embodiment described above, the pulse drilling device can be suitable for continuous drilling work under different working conditions by changing the types of the drill bits, and the flexibility and the universality of the pulse drilling device are greatly improved.
In one embodiment of the present invention, each drill rod 100 is configured with a discharge switch 400 to control the operation of each drill rod 100.
For example, first drill pipe 101 is configured with a first electrical discharge switch attached. A second discharge switch is configured to be connected to the second drill pipe 102. A third discharge switch is coupled to the third drill pipe 103. A fourth discharge switch is configured and connected to the fourth drillpipe 104. When first drilling rod 101 is required to discharge, first discharge switch is in the conducting state, and first drilling rod 101 discharges to the drill bit and breaks rock. At this time, the second discharge switch, the third discharge switch, and the fourth discharge switch are all in an off state, and the second drill rod 102, the third drill rod 103, and the fourth drill rod 104 are all in a charged state. When the electric energy of the first drill rod 101 is exhausted, the first discharge switch, the third discharge switch and the fourth discharge switch are in a cut-off state, the second discharge switch is in a conducting state, the second drill rod 102 discharges to the drill bit to break rocks, and the rest drill rods are in a charging state.
In one embodiment of the invention, an insulation layer is provided between the low pressure end and the high pressure end at the connection port of the drill pipe 100 and the drill bit connector 500. The insulating layer is used for isolating the high-voltage electrode drill bit from being connected with the low-voltage electrode drill bit and the shell, so that electric energy leakage is prevented, and safety problems are caused.
In one embodiment of the invention, the pulse drilling apparatus further comprises a control unit. The control unit is electrically connected to each of the discharge switches 400 to control the discharge time and the discharge sequence of each drill rod 100 by controlling the operating state of each discharge switch 400.
Further, in one embodiment of the present invention, at least one energy storage capacitor 300 is configured and connected to each drill pipe 100. Each energy storage capacitor 300 is connected to a high voltage power supply. The high-voltage power supply is electrically connected with the control unit. In particular in connection with the above embodiments, the impulse drilling device further comprises a control unit. The control unit is electrically connected with the first discharge switch, the second discharge switch, the third discharge switch and the fourth discharge switch. Each drill rod 100 may be configured with a plurality of energy storage capacitors 300, and each energy storage capacitor 300 is connected to a high voltage power supply. The high-voltage power supply can convert conventional 220V commercial power or 380V industrial power into high-voltage direct current, and the high-voltage direct current is dumped into the energy storage capacitor 300 to charge the first drill rod 101, the second drill rod 102, the third drill rod 103 and the fourth drill rod 104. The control system can control the high-voltage power supply to charge the energy storage capacitors 300 corresponding to the first drill rod 101, the second drill rod 102, the third drill rod 103 and the fourth drill rod 104.
Meanwhile, the control system can also set a certain discharge time and a certain discharge sequence. For example, the control system may set the discharge sequence to be first drill pipe 101, second drill pipe 102, third drill pipe 103, and fourth drill pipe 104 in that order. The discharge time of each drill rod 100 was 30 min.
At the beginning, the control system controls the first discharge switch to be in a conducting state, and the second discharge switch, the third discharge switch and the fourth discharge switch are all in a cut-off state. At this point, first drill rod 101 is discharged until the drill bit performs a crushing operation. Meanwhile, the control system controls the high-voltage power supply to charge the second drill rod 102, the third drill rod 103 and the fourth drill rod 104. After the first drill rod 101 discharges for 30min, the control system controls the first discharge switch, the third discharge switch and the fourth discharge switch to be in a cut-off state, and the second discharge switch is in a conducting state. At this point, the second drill pipe 102 is discharged to the drill bit for crushing work. Meanwhile, the control system controls the high-voltage power supply to charge the first drill rod 101, the third drill rod 103 and the fourth drill rod 104. After the second drill rod 102 discharges for 30min, the first discharge switch, the second discharge switch and the fourth discharge switch are in a cut-off state, and the third discharge switch is in a conducting state. At this point, the third drill pipe 103 is discharged to the drill bit for crushing work. At the same time, the control system controls the high voltage power supply to charge the first drill pipe 101, the second drill pipe 102 and the fourth drill pipe 104. After the third drill rod 103 discharges for 30min, the first discharge switch, the second discharge switch and the third discharge switch are in a cut-off state, and the fourth discharge switch is in a conducting state. At this point, the fourth drillpipe 104 is discharged to the drill bit for breaking work. Meanwhile, the control system controls the high-voltage power supply to charge the first drill rod 101, the second drill rod 102 and the third drill rod 103. According to the rule, the next cycle of continuous charging and discharging work is carried out.
It should be understood that at least one energy storage capacitor 300 is configured and connected to each drill pipe 100. The energy storage capacitor 300 connected to each drill rod 100 can be adjusted according to actual requirements. All energy storage capacitors may be connected to the same high voltage power supply.
In one embodiment of the present invention, the impulse drilling device further comprises a housing 600. Each energy storage capacitor 300 and each drill pipe 100 are mounted within a housing 600.
Further, in an embodiment of the present invention, as shown in fig. 1 to 5, a slag discharge passage 700 is provided in the housing 600. The plurality of drill rods 100 are annularly arrayed inside the housing 600 with the central point of the slag discharge passage 700 as the array central point.
As shown in fig. 1, the slag discharge passage 700 is located at the center of the plurality of drill rods 100. The device is used for pressing slurry to flush out broken slag of broken rocks, and realizes positive circulation slag discharge. Or the crushed slag is sucked out from the slag discharge channel 700, so that the reverse circulation slag discharge is realized.
According to the embodiment described above, the pulse drilling device has simple and compact structure and is easy to operate. Compared with the traditional mechanical crushing mode, the crushing efficiency is greatly improved, and the working cost is lower. Meanwhile, the device can be suitable for drilling work under different working conditions, and has high flexibility and universality. In addition, compare with current pulse drilling device, the device can really realize continuous charging and continuous discharge, and then realizes continuous drilling work, and its drilling work efficiency greatly promotes.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An impulse drilling device, comprising: a plurality of drill rods, drill bits, an energy storage capacitor and a discharge switch,
the energy storage capacitor is correspondingly connected to each drill rod, the drill rods connected with the energy storage capacitor can be charged by the energy storage capacitor, the drill bit is connected with the drill rods, the discharge switch is connected with the drill rods to control the drill rods to discharge to the drill bit and break rocks, and the drill rods can be continuously and alternately charged and discharged.
2. An impulse drilling device as claimed in claim 1, wherein said drill head comprises an integral drill head, each said drill rod being connected to said integral drill head.
3. The pulse drilling apparatus of claim 1, wherein the drill bit comprises a plurality of split drill bits, one split drill bit being configured and coupled to each drill rod.
4. A pulse drilling apparatus according to claim 2 or 3, wherein the drill bit is detachably connected to the drill rod by a drill bit connection.
5. An impulse drilling device as claimed in claim 1, wherein each of said drill rods is provided with a corresponding one of said discharge switches for controlling the operating state of each of said drill rods.
6. The pulse drilling device according to claim 5, further comprising a control unit electrically connected to each of the discharge switches to control a discharge time and a discharge sequence of each of the drill rods by controlling an operation state of each of the discharge switches.
7. An impulse drilling device as claimed in claim 4, characterized in, that an insulation layer is provided between the low pressure end and the high pressure end at the connection port of the drill rod and the drill bit connection piece.
8. The pulse drilling device according to claim 6, wherein at least one energy storage capacitor is connected to each drill rod, each energy storage capacitor is connected to a high voltage power supply, and the high voltage power supply is electrically connected to the control unit.
9. An impulse drilling device as claimed in claim 8, characterized in, that said impulse drilling device further comprises a housing, in which housing each of said energy storage capacitors and each of said drill rods are mounted.
10. The pulse drilling apparatus of claim 9, wherein a slag discharge passage is provided in the housing, and the plurality of drill rods are annularly arrayed inside the housing with a center point of the slag discharge passage as an array center point.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653591.2A CN113323661B (en) | 2021-06-11 | 2021-06-11 | Pulse drilling device |
| PCT/CN2022/073480 WO2022257478A1 (en) | 2021-06-11 | 2022-01-24 | Pulse drilling apparatus |
| EP22819085.6A EP4311910A1 (en) | 2021-06-11 | 2022-01-24 | Pulse drilling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653591.2A CN113323661B (en) | 2021-06-11 | 2021-06-11 | Pulse drilling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113323661A true CN113323661A (en) | 2021-08-31 |
| CN113323661B CN113323661B (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110653591.2A Active CN113323661B (en) | 2021-06-11 | 2021-06-11 | Pulse drilling device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4311910A1 (en) |
| CN (1) | CN113323661B (en) |
| WO (1) | WO2022257478A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257478A1 (en) * | 2021-06-11 | 2022-12-15 | 北京三一智造科技有限公司 | Pulse drilling apparatus |
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2021
- 2021-06-11 CN CN202110653591.2A patent/CN113323661B/en active Active
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2022
- 2022-01-24 WO PCT/CN2022/073480 patent/WO2022257478A1/en active Application Filing
- 2022-01-24 EP EP22819085.6A patent/EP4311910A1/en active Pending
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| CN112227955A (en) * | 2020-11-04 | 2021-01-15 | 北京三一智造科技有限公司 | Pulse rock breaking drill bit and pulse rock breaking drilling machine |
| CN112227954A (en) * | 2020-11-04 | 2021-01-15 | 北京三一智造科技有限公司 | Drill rod of plasma pile foundation equipment and plasma pile foundation equipment |
| CN112240164A (en) * | 2020-11-04 | 2021-01-19 | 北京三一智造科技有限公司 | Plasma pulse rock breaking pile machine |
| CN112855015A (en) * | 2021-01-27 | 2021-05-28 | 张庆豫 | High-voltage electric pulse assisted rock breaking and drilling system and method |
| CN112922575A (en) * | 2021-02-04 | 2021-06-08 | 中国矿业大学 | Electric pulse directional slotting-hydraulic blasting integrated coal seam permeability increasing method |
| CN112901065A (en) * | 2021-04-07 | 2021-06-04 | 北京三一智造科技有限公司 | Electrolyte circulation system and circulation method for high-voltage arc rock breaking |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257478A1 (en) * | 2021-06-11 | 2022-12-15 | 北京三一智造科技有限公司 | Pulse drilling apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113323661B (en) | 2022-11-04 |
| EP4311910A1 (en) | 2024-01-31 |
| WO2022257478A1 (en) | 2022-12-15 |
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