CN219890297U - Hole packer for large-diameter blast holes of coal and rock - Google Patents
Hole packer for large-diameter blast holes of coal and rock Download PDFInfo
- Publication number
- CN219890297U CN219890297U CN202321163949.4U CN202321163949U CN219890297U CN 219890297 U CN219890297 U CN 219890297U CN 202321163949 U CN202321163949 U CN 202321163949U CN 219890297 U CN219890297 U CN 219890297U
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- China
- Prior art keywords
- steel wire
- rubber tube
- hole
- coal
- wire rubber
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- 239000003245 coal Substances 0.000 title claims abstract description 40
- 239000011435 rock Substances 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 239000004677 Nylon Substances 0.000 claims abstract description 16
- 229920001778 nylon Polymers 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 238000005253 cladding Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000005422 blasting Methods 0.000 abstract description 18
- 238000005065 mining Methods 0.000 abstract description 14
- 239000002360 explosive Substances 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004880 explosion Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 10
- 238000005553 drilling Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- -1 and therefore Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to the technical field of hole sealing equipment, in particular to a hole packer for large-diameter blastholes of coal and rock, which is used for further improving the problems that in the current coal mine mining process, the safety and the overall production efficiency of the coal mine mining operation are affected due to the fact that the working personnel have high labor intensity and the blastholes are not blocked tightly and the gas in the mining area is out of limit in the process of blocking the blastholes by yellow mud mostly for blasting and releasing the pressure in the mining area by yellow mud. The hole packer is mainly composed of a steel wire rubber tube, a blocking core, a one-way valve, a water injection pipe, a nylon seat and other parts, and is convenient and effective to seal a large-diameter blasting hole in a compact manner by adopting a water injection type pressurizing sealing mode, and meanwhile, the nylon seat is additionally arranged on one side, close to an explosive, of the hole packer, so that the hole packer effectively avoids the influence of static electricity during explosive explosion, the sealing effect of the blasting hole is further ensured, and the overall safety of sealing operation is improved.
Description
Technical Field
The utility model relates to the technical field of hole sealing equipment, in particular to a hole packer for large-diameter blast holes of coal and rock.
Background
The rock burst prevention and control technology is divided into a prevention technology and a timely danger elimination technology, for a potential dangerous area, a section of advanced working face is usually treated by adopting a targeted prevention technology in advance, so that excessive stress concentration and energy accumulation generated by the coal rock are avoided, the rock burst disaster caused by sudden impact damage of the coal rock is avoided, and the purpose of reducing or eliminating impact danger is ensured by preventive technical measures. The prevention technology is divided into a coal side pressure relief technology, a bottom coal pressure relief technology and a cover rock presplitting technology, and the coal side can select coal side pressure relief blasting or coal side large-diameter drilling pressure relief according to the mechanical characteristics of regional coal bodies; the bottom coal can be selected to be subjected to pressure relief blasting or large-diameter drilling pressure relief; in the working face mining process, when monitoring mine pressure abnormal or judging the area with impact danger, timely danger relieving technical measures are adopted to eliminate or reduce the impact danger. The danger eliminating technology mainly comprises impact danger control by adopting broken roof pressure relief blasting, coal side and bottom coal pressure relief blasting or large-diameter drilling pressure relief technology and the like, at present, in order to avoid too high stress concentration and energy accumulation of coal rocks in a mining activity area, the working safety of the mining activity area is ensured by adopting a blasting pressure relief mode, however, conventionally, huang Nifeng holes are always used for plugging blastholes in the coal mine blasting pressure relief, and Huang Nifeng holes have the problems of large labor intensity of operators, uncompacted blasthole plugging and overrun gas in the mining area, thereby influencing the mining operation safety and the overall production efficiency of the coal mine.
Disclosure of Invention
The utility model provides a hole packer for large-diameter blast holes of coal and rock, which aims to solve the problems in the background.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a hole packer for coal rock major diameter blasthole, includes the steel wire rubber tube, and the inboard first stifled core that wears to be equipped with of steel wire rubber tube one end, and the cladding has first iron sheet on the peripheral steel wire rubber tube of first stifled core, and the mounting hole has been seted up along the axial to the inboard of first stifled core, is provided with the check valve in the mounting hole, the one end of check valve with steel wire rubber tube intercommunication, the other end of check valve is connected with the water injection pipe, the inboard second stifled core that wears to be equipped with of steel wire rubber tube other end, the cladding has the second iron sheet on the peripheral steel wire rubber tube of second stifled core, the second stifled core still is connected with the nylon seat.
Further, the first plug core is connected with a push-pull rod, the water injection pipe is also connected with a ball valve, and the push-pull rod and the ball valve are both positioned on the outer side of the steel wire rubber pipe.
Further, the first stifled core and the second stifled core stretch into all be equipped with a plurality of spacing bead on the inside outer wall of steel wire rubber pipe, all be equipped with a plurality of spacing bars on the inner wall of first iron sheet, second iron sheet and steel wire rubber pipe contact, spacing bead and spacing bar's setting has improved the joint strength of steel wire rubber pipe and first stifled core, the stifled core of second and first iron sheet and second iron sheet effectively, has ensured the application stability of hole packer, has further promoted the sealed effect in coal rock blasthole.
Further, the second plug core is connected with the connecting rod, the nylon seat is clamped on the connecting rod, and the connecting rod and the nylon seat are both positioned on the outer side of the steel wire rubber tube, and the nylon seat is additionally arranged on one side, close to the explosive, of the hole packer, so that the hole packer effectively avoids the influence of static electricity when the explosive explodes, the sealing effect of the explosion hole is further ensured, and the overall safety of plugging operation is improved.
Further, the one-way valve is a CV20-FNT20 one-way valve, and the ball valve is an H-series high-pressure ball valve.
The utility model has the following beneficial effects:
the hole packer for the large-diameter blast hole of the coal rock mainly comprises a steel wire rubber tube, a blocking core, a one-way valve, a water injection pipe, a nylon seat and the like, the large-diameter blast hole is conveniently and effectively blocked in a water injection type pressurizing sealing mode, meanwhile, the nylon seat is additionally arranged on one side, close to an explosive, of the hole packer, so that the hole packer effectively avoids the influence of static electricity during the explosion of the explosive, further ensures the sealing effect of the blast hole, improves the overall safety of blocking operation, and further improves the problems that in the current coal mine mining process, due to the fact that a yellow mud blocking blast hole is used for blasting and releasing pressure in a mining area, labor intensity of operators is high, blocking of the blast hole is not compact and gas in the mining area is overrun in the process of blocking the blast hole by the yellow mud, and accordingly the coal mine mining operation safety and the overall production efficiency are affected.
According to the utility model, the outer walls of the first plugging core and the second plugging core extending into the steel wire rubber tube are provided with the plurality of limit ribs, and the inner walls of the first iron sheet, the second iron sheet and the steel wire rubber tube, which are in contact, are provided with the plurality of limit reinforcing bars, and the arrangement of the limit ribs and the limit reinforcing bars effectively improves the connection strength of the steel wire rubber tube, the first plugging core, the second plugging core and the first iron sheet and the second iron sheet, ensures the application stability of the hole packer, and further improves the sealing effect of the coal rock blastholes.
According to the utility model, the second plugging core is connected with the connecting rod, the nylon seat is clamped on the connecting rod, and the connecting rod and the nylon seat are both positioned on the outer side of the steel wire rubber tube, and the nylon seat is additionally arranged on one side of the hole packer, which is close to the explosive, so that the hole packer effectively avoids the influence of static electricity during explosive explosion, further ensures the sealing effect of the explosion hole, and improves the overall safety of plugging operation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of a first plugging core position structure according to the present utility model.
The reference numerals have the following meanings:
1. a steel wire rubber tube; 2. a first plugging core; 3. a second plugging core; 4. a first iron sheet; 5. a second iron sheet; 6. a mounting hole; 7. a one-way valve; 8. a limit rib; 9. limiting steel bars; 10. a water injection pipe; 11. a ball valve; 12. a push-pull rod; 13. a connecting rod; 14. nylon seat.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
As shown in fig. 1-2, the hole packer for the large-diameter blast hole of the coal rock comprises a steel wire rubber tube 1, wherein a first plugging core 2 is penetrated and arranged on the inner side of one end of the steel wire rubber tube 1, and a first iron sheet 4 is coated on the steel wire rubber tube 1 on the periphery of the first plugging core 2. The inside of first stifled core 2 has offered mounting hole 6 along the axial, is equipped with check valve 7 in the mounting hole 6, and the one end and the steel wire rubber tube 1 intercommunication of check valve 7, the other end of check valve 7 are connected with water injection pipe 10, and water injection pipe 10 still is connected with ball valve 11. The first plugging core 2 is also connected with a push-pull rod 12, and the push-pull rod 12 and the ball valve 11 are both positioned at the outer side of the steel wire rubber tube 1. The inner side of the other end of the steel wire rubber tube 1 is provided with a second blocking core 3 in a penetrating way, and the steel wire rubber tube 1 at the periphery of the second blocking core 3 is coated with a second iron sheet 5. The outer walls of the first plugging core 2 and the second plugging core 3 extending into the steel wire rubber tube 1 are provided with a plurality of limit ribs 8 in a machining mode, and the inner walls of the first iron sheet 4, the second iron sheet 5 and the steel wire rubber tube 1 in contact are provided with a plurality of limit steel bars 9 in a welding mode. The second plug core 3 is connected with a connecting rod 13, a nylon seat 14 is clamped on the connecting rod 13, and the connecting rod 13 and the nylon seat 14 are both positioned on the outer side of the steel wire rubber tube 1.
When the coal rock pressure relief device is specifically used, the advanced working face carries out coal rock treatment on the coal seam roof and the coal body in advance in a blasting pressure relief mode for a certain distance, so that the roof forms a coal rock loosening ring to play a role in generating stress concentration areas and energy accumulation for the coal rock, and therefore, rock burst disasters caused by sudden impact damage of the coal rock are avoided. The large-diameter pressure relief blasting adopts a full-hydraulic caterpillar drilling machine and a matched drill rod for construction, the drilling hole diameter of the blasting hole is 78mm, the drilling hole depth is 20-60 m, an operator uses a butt joint guide rod to send explosive charges into the bottom of the blasting hole, the explosive charges are continuously and uncoupling to charge, the hole packer is conveniently sent into the blasting hole through a push-pull rod 12 after the explosive charges are filled, a water injection pipe 10 is reserved outside the blasting hole, then a ball valve 11 is opened, water is injected into a steel wire rubber pipe 1 through a one-way valve 7, when the water pressure in the steel wire rubber pipe 1 reaches a set threshold value, water supply is stopped, then the ball valve 11 is closed, at the moment, the steel wire rubber pipe 1 is expanded under high pressure and is tightly attached to the inner wall of the blasting hole, so that a good blocking effect is formed on the inner wall of the blasting hole, and therefore the safety of a coal seam mining operation platform is ensured, and the whole production efficiency of the operation is improved.
Claims (4)
1. A hole packer for large-diameter blast holes of coal and rock is characterized in that: including steel wire rubber tube (1), the inboard first stifled core (2) that wears to be equipped with of one end of steel wire rubber tube (1), the cladding has first iron sheet (4) on first stifled core (2) outlying steel wire rubber tube (1), and mounting hole (6) have been seted up along the axial to the inboard of first stifled core (2), are provided with check valve (7) in mounting hole (6), the one end of check valve (7) with steel wire rubber tube (1) intercommunication, the other end of check valve (7) is connected with water injection pipe (10), the inboard second stifled core (3) that wears to be equipped with of the other end of steel wire rubber tube (1), the cladding has second iron sheet (5) on second stifled core (3) outlying steel wire rubber tube (1), second stifled core (3) still are connected with nylon seat (14).
2. The hole packer for large-diameter blast holes of coal and rock according to claim 1, characterized in that: the first plug core (2) is connected with a push-pull rod (12), and the water injection pipe (10) is also connected with a ball valve (11).
3. The hole packer for large-diameter blast holes of coal and rock according to claim 1, characterized in that: the novel steel wire rubber tube is characterized in that a plurality of limit ribs (8) are arranged on the outer wall of the inner portion of the steel wire rubber tube (1) extending into the first plug core (2) and the second plug core (3), and a plurality of limit reinforcing bars (9) are arranged on the inner wall of the first iron sheet (4), the second iron sheet (5) and the steel wire rubber tube (1) in contact.
4. A hole packer for large diameter blastholes of coal rock according to claim 3, characterized in that: the second plugging core (3) is connected with a connecting rod (13), and the nylon seat (14) is clamped on the connecting rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321163949.4U CN219890297U (en) | 2023-05-15 | 2023-05-15 | Hole packer for large-diameter blast holes of coal and rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321163949.4U CN219890297U (en) | 2023-05-15 | 2023-05-15 | Hole packer for large-diameter blast holes of coal and rock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219890297U true CN219890297U (en) | 2023-10-24 |
Family
ID=88409418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321163949.4U Active CN219890297U (en) | 2023-05-15 | 2023-05-15 | Hole packer for large-diameter blast holes of coal and rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219890297U (en) |
-
2023
- 2023-05-15 CN CN202321163949.4U patent/CN219890297U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |