CN204188084U - Directed presplit blasting device - Google Patents
Directed presplit blasting device Download PDFInfo
- Publication number
- CN204188084U CN204188084U CN201420623952.4U CN201420623952U CN204188084U CN 204188084 U CN204188084 U CN 204188084U CN 201420623952 U CN201420623952 U CN 201420623952U CN 204188084 U CN204188084 U CN 204188084U
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- Prior art keywords
- cumulative
- quick
- directed
- fried cylinder
- leads
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of directed presplit blasting device, relate to engineering explosion field, provide one can move towards direction to seam roof along tunnel and carry out directed presplit blasting, form the directed presplit blasting device of complete pre-broken face.Directed presplit blasting device comprises the cumulative be made up of PVC plastic and leads quick-fried cylinder, explosive cartridge, electric cap and plug; Cumulative is led and quick-fried cylinder is provided with two width is vertically the joint-cutting of 3 ~ 5mm, and two joint-cuttings lead quick-fried cylinder axisymmetrical relative to cumulative; Explosive cartridge is filled in cumulative and leads in quick-fried cylinder; Plug shutoff cumulative leads quick-fried cylinder two ends; Electric cap inserts explosive cartridge, and the payment to a porter of electric cap is positioned at cumulative through plug and leads quick-fried cylinder outside.The utility model can be applied in directed Pre-splitting Blasting Technique.
Description
Technical field
The utility model relates to engineering explosion field, particularly relates to the directed presplit blasting device in a kind of colliery.
Background technology
Gob side entry retaining is without coal pillar mining technology extensive use, but bump during owing to pressing by roof periodic and goaf top plate are caving the impact of cantilever beam on filled wall of rear formation, the problems such as the filled wall of gob side entry retaining local just there will be distortion, crack, drift section diminish.For solving the problem, directed presplit blasting can be implemented by directed presplit blasting device and cut top release along Kong Cheng lane without coal pillar mining technology, in advance along tunnel, direction is moved towards to seam roof and carry out directed presplit blasting, form complete pre-broken face, then filled wall is built by laying bricks or stones along the pre-ceasma of release, when roof weighting, goaf top plate will cut off bashing along pre-broken face, the cantilever beam that bump when avoiding roof periodic to press and goaf top plate are caving rear formation affects the pressure break of filled wall, and top board large area is come " the quick-fried wind " of swaging one-tenth, support is impacted, injures and deaths are caused to personnel.Serve the effect of cutting top release.
Utility model content
The technical problems to be solved in the utility model is: provide one can move towards direction to seam roof along tunnel and carry out directed presplit blasting, forms the directed presplit blasting device in colliery of complete pre-broken face.
In order to solve the problem, the technical scheme adopted is: the directed presplit blasting device in colliery comprises the cumulative be made up of PVC plastic and leads quick-fried cylinder, explosive cartridge, electric cap and plug; Cumulative is led and quick-fried cylinder is provided with two width is vertically the joint-cutting of 3 ~ 5mm, and two joint-cuttings lead quick-fried cylinder axisymmetrical relative to cumulative; Explosive cartridge is filled in cumulative and leads in quick-fried cylinder; Plug shutoff cumulative leads quick-fried cylinder two ends; Electric cap inserts explosive cartridge, and the payment to a porter of electric cap is positioned at cumulative through plug and leads quick-fried cylinder outside.
The beneficial effects of the utility model are: in roof, stamp big gun hole, and directed for this colliery presplit blasting device is put into big gun hole.To be ignited explosive by electric cap, the energy of explosive charge release pools cumulative shooting flow along joint-cutting, produces super-pressure, superfast high temp jet, have extremely strong penetration capacity near joint-cutting, thus has the effect of cutting presplitting preferably to rock.Joint-cutting is placed along the direction needed, direction can be moved towards to seam roof along tunnel and carry out directed presplit blasting, form complete pre-broken face.When roof weighting, goaf top plate will cut off bashing along pre-broken face, and the cantilever beam that bump when avoiding roof periodic to press and goaf top plate are caving rear formation affects the pressure break of filled wall.
Adopt the directed presplit blasting device in this colliery can improve explosion available energy, improve demolition effect, greatly increase presplitting borehole spacing, the borehole spacing required than common photoface exploision improves more than 50%.In addition also to have structure simple, compact for the utility model, advantage easy to make.
Accompanying drawing explanation
Fig. 1 is that cumulative leads quick-fried barrel structure figure;
Fig. 2 is that cumulative leads quick-fried barrel structure sectional view;
Fig. 3 is the directed presplit blasting structure drawing of device in colliery;
Be labeled as in figure: cumulative leads quick-fried cylinder 1, joint-cutting 2, explosive cartridge 3, electric cap 4, plug 5, payment to a porter 6.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As shown in Figure 3, colliery directional blasting device, is characterized in that: comprise the cumulative be made up of PVC plastic and lead quick-fried cylinder 1, explosive cartridge 3, electric cap 4 and plug 5; Cumulative is led and quick-fried cylinder 1 is provided with vertically two width is that joint-cutting 2, two joint-cuttings 2 of 3 ~ 5mm lead quick-fried cylinder 1 axisymmetrical relative to cumulative; Explosive cartridge 3 is filled in cumulative and leads in quick-fried cylinder 1; Plug 5 shutoff cumulative leads quick-fried cylinder 1 two ends; Electric cap 4 inserts explosive cartridge 3, and the payment to a porter 6 of electric cap 4 is positioned at cumulative through plug 5 and leads quick-fried cylinder 1 outside.
Cumulative is led quick-fried cylinder 1 and suitable PVC plastic pipe can be selected to intercept suitable length, then cuts out joint-cutting 2 and makes.Explosive cartridge 3 is prior art products, and the internal diameter that cumulative leads quick-fried cylinder 1 should mate with explosive cartridge 3 external diameter.Each explosive cartridge 3 contacts with each other closely, to ensure the stable propagation of explosive detonation, and the visual lithology of powder stick 3 quantity and borehole depth adjustment.Plug 5 can be yellow mud.Electric cap 4 is prior art products.
During explosion, in roof, stamp big gun hole, directed for this colliery presplit blasting device is put into big gun hole.To be ignited explosive by electric cap 4, the energy of explosive charge release pools cumulative shooting flow along joint-cutting 2, produces super-pressure, superfast high temp jet, have extremely strong penetration capacity joint-cutting 2 near, thus has rock and cut presplitting effect preferably.Joint-cutting 2 is placed along the direction needed, direction can be moved towards to seam roof along tunnel and carry out directed presplit blasting, form complete pre-broken face.
Adopt the directed presplit blasting device in this colliery can improve explosion available energy, improve demolition effect, greatly increase presplitting borehole spacing, the borehole spacing required than common photoface exploision improves more than 50%.In addition also to have structure simple, compact for the utility model, advantage easy to make.
Claims (1)
1. directed presplit blasting device, is characterized in that: comprise the cumulative be made up of PVC plastic and lead quick-fried cylinder (1), explosive cartridge (3), electric cap (4) and plug (5); Cumulative is led on quick-fried cylinder (1) and is provided with the joint-cutting (2) that two width are 3 ~ 5mm vertically, and two joint-cuttings (2) lead quick-fried cylinder (1) axisymmetrical relative to cumulative; Explosive cartridge (3) is filled in cumulative and leads in quick-fried cylinder (1); Plug (5) shutoff cumulative leads quick-fried cylinder (1) two ends; Electric cap (4) inserts explosive cartridge (3), and the payment to a porter (6) of electric cap (4) is positioned at cumulative through plug (5) and leads quick-fried cylinder (1) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420623952.4U CN204188084U (en) | 2014-10-24 | 2014-10-24 | Directed presplit blasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420623952.4U CN204188084U (en) | 2014-10-24 | 2014-10-24 | Directed presplit blasting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204188084U true CN204188084U (en) | 2015-03-04 |
Family
ID=52620069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420623952.4U Expired - Fee Related CN204188084U (en) | 2014-10-24 | 2014-10-24 | Directed presplit blasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204188084U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806246A (en) * | 2015-05-08 | 2015-07-29 | 贵州盘江精煤股份有限公司 | Gob-side entry retaining method for coal mine gateway by directional-predetermined crack blasting and truncating crest and pressure relief mode |
| CN105444624A (en) * | 2015-12-24 | 2016-03-30 | 贵州大学 | Vacuum cartridge bag structure capable of initiatively releasing pressure and accumulating energy during pre-splitting blasting and preparation method thereof |
| CN106643355A (en) * | 2017-01-19 | 2017-05-10 | 中国矿业大学(北京) | Forced roof caving method for hugely-thick hard roof in deep coal mine |
| CN109141150A (en) * | 2018-11-08 | 2019-01-04 | 贵州安和矿业科技工程股份有限公司 | A kind of coal seam Deephole pre-splitting blasting charge constitution and installation method |
| CN110879020A (en) * | 2019-12-06 | 2020-03-13 | 何满潮 | Energy-gathering water pressure blasting device |
| CN110894791A (en) * | 2019-12-06 | 2020-03-20 | 何满潮 | Directional roof cutting method for single-crack-surface instantaneous bursting device |
| CN115355779A (en) * | 2022-08-15 | 2022-11-18 | 陕西永明煤矿有限公司 | Air intake tunnel pre-splitting construction process |
-
2014
- 2014-10-24 CN CN201420623952.4U patent/CN204188084U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806246A (en) * | 2015-05-08 | 2015-07-29 | 贵州盘江精煤股份有限公司 | Gob-side entry retaining method for coal mine gateway by directional-predetermined crack blasting and truncating crest and pressure relief mode |
| CN105444624A (en) * | 2015-12-24 | 2016-03-30 | 贵州大学 | Vacuum cartridge bag structure capable of initiatively releasing pressure and accumulating energy during pre-splitting blasting and preparation method thereof |
| CN106643355A (en) * | 2017-01-19 | 2017-05-10 | 中国矿业大学(北京) | Forced roof caving method for hugely-thick hard roof in deep coal mine |
| CN106643355B (en) * | 2017-01-19 | 2019-07-09 | 中国矿业大学(北京) | A kind of overhead caving method of the huge thick tight roof of deep coalmine |
| CN109141150A (en) * | 2018-11-08 | 2019-01-04 | 贵州安和矿业科技工程股份有限公司 | A kind of coal seam Deephole pre-splitting blasting charge constitution and installation method |
| CN110879020A (en) * | 2019-12-06 | 2020-03-13 | 何满潮 | Energy-gathering water pressure blasting device |
| CN110894791A (en) * | 2019-12-06 | 2020-03-20 | 何满潮 | Directional roof cutting method for single-crack-surface instantaneous bursting device |
| CN110879020B (en) * | 2019-12-06 | 2023-01-10 | 何满潮 | Energy-gathering water pressure blasting device |
| CN115355779A (en) * | 2022-08-15 | 2022-11-18 | 陕西永明煤矿有限公司 | Air intake tunnel pre-splitting construction process |
| CN115355779B (en) * | 2022-08-15 | 2024-02-09 | 陕西永明煤矿有限公司 | Pre-splitting construction process for air inlet lane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20161024 |