CN113323660B - High-stress high-hydraulic coal breaking and reaming device - Google Patents
High-stress high-hydraulic coal breaking and reaming device Download PDFInfo
- Publication number
- CN113323660B CN113323660B CN202110821763.2A CN202110821763A CN113323660B CN 113323660 B CN113323660 B CN 113323660B CN 202110821763 A CN202110821763 A CN 202110821763A CN 113323660 B CN113323660 B CN 113323660B
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- Prior art keywords
- hydraulic
- retaining ring
- screw retaining
- bending
- water spraying
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- 239000003245 coal Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000005452 bending Methods 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 abstract description 13
- 238000004080 punching Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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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)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a high-stress high-hydraulic coal breaking and reaming device, which belongs to equipment in the field of coal mine safety production. The high-stress high-hydraulic coal breaking and reaming device comprises an outer cylinder, an inner cylinder, a left screw retaining ring, a hydraulic pushing plug, a retraction spring, a bending and expanding water spraying pipe, a ceramic nozzle, a hydraulic rotating disc and a right screw retaining ring. The hydraulic pushing plug, the bending expanding spray pipe, the ceramic nozzle and the hydraulic rotating disc are rotated under the action of the water pressure. The hydraulic pushing plug moves under the pushing of water pressure, so that the bending expanding water spraying pipe extends out of the bending expanding punching diameter, and the retraction spring enables the hydraulic pushing plug to retract under low water pressure, so that the bottleneck problem of drill sticking is solved.
Description
Technical Field
The invention relates to a deep rock burst prevention and treatment method and device, in particular to a high-stress high-hydraulic coal breaking and hole expanding device.
Background
The large hole is the optimal method for preventing rock burst, the property of the coal body is changed by changing the structure of the coal body, so that the impact energy of the coal body can be consumed, the release direction and the space of the impact energy can be changed, the supporting capacity of surrounding rocks can be ensured, and the situation that the safety of personnel is seriously threatened and the production progress is slowed down due to the fact that the coal body rushes into the working space of a roadway due to the impact energy is prevented. The drilling machine is characterized in that a drill bit of a common drilling machine is cut to form a drill hole, the drill is blocked due to insufficient power of the drilling machine and drill tool blocking is an unsolvable bottleneck problem under the action of high stress and strong impact power in a deep part, so that a drilling tool is blocked and wasted from dozens of meters to hundreds of meters, the drilling operation cannot be finished, and the prevention and the control of rock burst cannot be realized.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-stress high-hydraulic coal breaking and reaming device, which solves the problems of drill jamming and insufficient power of a large-hole drilling machine caused by different diameters of drill rods and drill bits by utilizing the combined action of deep high stress, hole wall concentrated stress and high-pressure hydraulic power, and the formed large hole not only meets the consumption of slow deformation energy in quasi-static state of a roadway, but also meets the consumption of impact deformation energy, and also can meet the supporting action of surrounding rocks of the roadway, so that the roadway is ensured not to collapse when being damaged by impact, and personal safety injury and equipment damage are avoided.
In order to achieve the purpose, the invention provides a high-stress high-hydraulic coal breaking and reaming device which comprises an outer cylinder 1, an inner cylinder 2, a left screw retaining ring 3, a hydraulic pushing plug 4, a retraction spring 5, a bending expanding water spraying pipe 6, a ceramic nozzle 7, a hydraulic rotating disc 8 and a right screw retaining ring 9.
The rear end of the outer cylinder 1 is provided with an external thread, and the high-stress high-water-power coal breaking and reaming device is connected to a high-pressure water pipe through the external thread of the outer cylinder 1.
The front end and the rear end of the outer barrel 1 are provided with internal threads, the left screw retaining ring 3 and the right screw retaining ring 9 are provided with external threads, and the right screw retaining ring 9 and the left screw retaining ring 3 are respectively fixed at the front end and the rear end of the outer barrel 1 through threads. For convenient fixing, the left screw retaining ring 3 and the right screw retaining ring 9 are provided with insertion holes 91.
The outer diameter of the inner cylinder 2 is equal to the inner diameter of the outer cylinder 1, four inner cylinder slits 21 are uniformly distributed at the rear end of the inner cylinder 2, and water can enter the inner cylinder 2 through the four slits.
Three round holes 41 with the mutual interval of 120 degrees and the diameter of 5 millimeters are distributed on the hydraulic pushing plug 4, the left ends of the three bending expanding water spraying pipes 6 are welded with the hydraulic pushing plug 4 at the round holes, and high-pressure water enters the bending expanding water spraying pipes 6 through the hydraulic pushing plug 4.
The retraction spring 5 is arranged on the right side of the hydraulic pushing plug 4, and the three bent expanding water spraying pipes penetrate through the retraction spring.
Six round holes are distributed on the hydraulic rotating disk 8, wherein three inclined round holes 81 and the disk surface of the hydraulic rotating disk 8 form an angle of 45 degrees, the right end of the bent expanded diameter spray pipe 6 with the ceramic nozzle 7 extends out of the inclined round holes 81, the vertical round holes 82 are vertical to the disk surface of the hydraulic rotating disk 8, water entering the inner cylinder 2 flows out through the three vertical round holes 82, and impurities in the holes are flushed out.
The ceramic spray nozzle 7 is fixedly connected with the right end of the bending expanding water spray pipe 6, and in order to reduce resistance, the inner hole of the ceramic spray nozzle 7 is streamline.
Drawings
FIG. 1 is a schematic structural diagram of a high-stress high-hydraulic coal breaking and reaming device according to the present invention;
FIG. 2 is a side view of the inner barrel 2 of the present invention;
fig. 3 is a schematic structural view of the hydraulic push plug of the present invention.
Fig. 4 is a schematic structural view of a hydraulic rotary disk of the present invention.
Fig. 5 is a schematic structural view of the left and right screw retaining rings of the present invention.
In the figure, 1-outer cylinder, 2-inner cylinder, 3-left screw retaining ring, 4-hydraulic pushing plug, 5-retraction spring, 6-bending expanding water spray pipe, 7-ceramic nozzle, 8-hydraulic rotating disk, 9-right screw retaining ring, 21-inner cylinder slit 41-hydraulic pushing plug round hole, 81-inclined round hole, 82-vertical round hole and 91-jack.
Detailed Description
The invention is described in further detail below with reference to the following figures and embodiments:
in an embodiment, referring to fig. 1, the high-stress high-hydraulic coal breaking and reaming device includes an outer cylinder 1, an inner cylinder 2, a left screw retaining ring 3, a hydraulic pushing plug 4, a retraction spring 5, a bending expanding water spray pipe 6, a ceramic nozzle 7, a hydraulic rotating disc 8, and a right screw retaining ring 9.
The high-stress high-hydraulic coal breaking and reaming device is connected to a high-pressure water pipe through the external thread at the rear end of the outer cylinder 1.
When the water pressure is high, the hydraulic pushing plug 4 moves under the pushing of the water pressure to push the bent expanded diameter spray pipe 6 and the ceramic spray head 7 to extend out of three inclined circular holes 81 on the water pressure rotating disc 8, the three extending bent expanded diameter spray pipes 6 are different in direction due to the orientation effect of the inclined circular holes, the bent expanded diameter spray pipe 6 is rotated under the action of the impulse, the hydraulic pushing plug 4 and the water pressure rotating disc 8 are driven to rotate, the water sprayed by the rotating ceramic spray head 7 impacts coal bodies to punch holes, the expanded diameter spray pipe 6 bends and expands the punching diameter, and the holes are punched under the high water pressure. When low water pressure, retraction spring 5 make hydraulic pressure promote stopper 4 and return, four slits on the inner tube 2 are opened, water gets into through four slits on the inner tube 2, flows through the round hole on the water pressure rolling disc 8, and the broken rock that the process of will punching caused is washed out, punches a hole when realizing low water pressure. The diameter of the high-stress high-hydraulic coal breaking and reaming device is not provided with a protruding area, so that the problem of the bottleneck of the drill sticking is completely solved.
Claims (2)
1. A high-stress high-hydraulic coal breaking and reaming device is characterized by comprising an outer cylinder, an inner cylinder, a left screw retaining ring, a hydraulic pushing plug, a retraction spring, a bending and expanding water spraying pipe, a ceramic nozzle, a hydraulic rotating disc and a right screw retaining ring;
the rear end of the outer cylinder is provided with an external thread, and the high-stress high-hydraulic coal breaking and reaming device is connected to the high-pressure water pipe through the external thread of the outer cylinder;
the front end and the rear end of the outer barrel are provided with internal threads, the left screw retaining ring and the right screw retaining ring are provided with external threads, and the right screw retaining ring and the left screw retaining ring are respectively fixed at the front end and the rear end of the outer barrel through threads;
the left screw retaining ring and the right screw retaining ring are provided with jacks;
the outer diameter of the inner cylinder is equal to the inner diameter of the outer cylinder;
the retraction spring is arranged on the right side of the hydraulic pushing plug, and the three bent expanding water spraying pipes penetrate through the retraction spring;
the ceramic nozzle is fixedly connected with the right end of the bending expanding water spraying pipe;
the hydraulic pushing plug is provided with three round holes with mutual intervals of 120 degrees and a diameter of 5 millimeters, the left ends of the three bending expanding water spraying pipes are welded with the hydraulic pushing plug at the round holes, and the bending expanding water spraying pipes have elastic bending characteristics;
four slits are uniformly and symmetrically distributed at the rear end of the inner cylinder;
six circular holes are distributed on the hydraulic pressure rotating disc, wherein three inclined circular holes and the disc surface of the hydraulic pressure rotating disc form an angle of 45 degrees, the right end of a bent expanding water spraying pipe with a ceramic nozzle extends out of the inclined circular holes, and the other three vertical circular holes are vertical to the disc surface of the hydraulic pressure rotating disc.
2. The high-stress high-hydraulic coal breaking and reaming device according to claim 1, characterized in that: the inner hole of the ceramic nozzle is streamline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821763.2A CN113323660B (en) | 2021-07-21 | 2021-07-21 | High-stress high-hydraulic coal breaking and reaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821763.2A CN113323660B (en) | 2021-07-21 | 2021-07-21 | High-stress high-hydraulic coal breaking and reaming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113323660A CN113323660A (en) | 2021-08-31 |
| CN113323660B true CN113323660B (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110821763.2A Active CN113323660B (en) | 2021-07-21 | 2021-07-21 | High-stress high-hydraulic coal breaking and reaming device |
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| CN (1) | CN113323660B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115807620A (en) * | 2023-02-06 | 2023-03-17 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Drilling equipment and drilling method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE531017C2 (en) * | 2005-05-09 | 2008-11-18 | Sandvik Intellectual Property | Rock Drilling Tools |
| CN201460734U (en) * | 2009-07-01 | 2010-05-12 | 煤炭科学研究总院重庆研究院 | High-pressure water jet coal seam drilling and reaming system |
| CN102213077A (en) * | 2011-05-25 | 2011-10-12 | 煤炭科学研究总院沈阳研究院 | Coal seam reaming system using three-dimensional (3D) swirling water jet and reaming and fracturing method for permeability enhancement |
| CN105317380B (en) * | 2015-07-03 | 2017-08-08 | 河南焦煤能源有限公司科学技术研究所 | A kind of variable-flow bores and rushes unitary nozzle |
| CN106223861B (en) * | 2016-08-29 | 2019-01-01 | 中煤科工集团重庆研究院有限公司 | Ultrahigh pressure hydraulic drilling, expanding and cutting integrated drill bit |
| CN107023295B (en) * | 2017-04-14 | 2021-05-28 | 华北科技学院 | Hard coal erosion-prevention pressure-relief drilling construction method and equipment |
| CN111794681B (en) * | 2020-07-17 | 2022-02-22 | 中煤科工集团西安研究院有限公司 | High-low pressure switching device with openable central through hole |
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| CN113323660A (en) | 2021-08-31 |
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