CN205332934U - Directional blasting device - Google Patents
Directional blasting device Download PDFInfo
- Publication number
- CN205332934U CN205332934U CN201620073577.XU CN201620073577U CN205332934U CN 205332934 U CN205332934 U CN 205332934U CN 201620073577 U CN201620073577 U CN 201620073577U CN 205332934 U CN205332934 U CN 205332934U
- Authority
- CN
- China
- Prior art keywords
- detonator
- blasting
- surge chamber
- chamber
- explosive
- 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.)
- Expired - Fee Related
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
This patent belongs to the equipment of the rock that is used for exploding, specifically discloses a directional blasting device, including detonator, explosive, first detonator, first blasting fuse and end cap, the end cap blocks up the mouth of pipe at the detonator, the one end of first blasting fuse stretches into in the detonator to the connection still includes a rubber sealing plug on first detonator, a rubber sealing plug separates the detonator for first explosion chamber and first surge chamber, first detonator and explosive all hold in the explosion chamber, be equipped with the liquid nitrogen in the surge chamber. Compare with traditional directional blasting device, a liquid nitrogen and a rubber sealing plug's characteristic, the effectual vibration that has reduced the blasting production are utilized to this scheme.
Description
Technical field
This utility model belongs to the equipment for the rock that explodes, and particularly relates to a kind of directional blasting device。
Background technology
At present, urban subway development is rapid, and a lot of big cities subway line is intricate, wears (or side wear) existing line or building phenomenon significantly increases under point blank, and difficulty of construction increases。The geological conditions city based on rock generally uses drill bursting construction。Drill bursting construction has the advantages such as construction cost is low, drivage efficiency is high, easily operated, becomes the subway tunnel tunneling construction method that China is main。
Directional blasting device is the equipment that drilling and blasting method is mainly used, it mainly includes detonator, explosive, detonator, blasting fuse and plug, detonator and explosive and is all contained in detonator, and plug is blocked on detonator, one end of blasting fuse is stretched in detonator through plug, and is connected on detonator。In drill bursting construction process, explosive charge can produce the negative effect such as blasting vibration and shock wave。Press close to existing line or architecture construction due to point blank, the blasting vibration that drill bursting construction produces is especially prominent to surrounding environment influence。Therefore, when formulating drill bursting construction scheme, the produced vibration effect of controlled blasting construction becomes overriding concern factor, it is necessary to the controlled blasting construction negative effect near existing line road and building as possible。Particularly to the circuit being open to traffic, if do not controlled well, serious consequence will be produced。
Therefore, it is badly in need of a kind of directional blasting device, to reduce the vibration that explosion produces。
Utility model content
The purpose of this utility model is providing a kind of directional blasting device, to reduce the vibration that explosion produces。
In order to achieve the above object, base case of the present utility model is: directional blasting device, including detonator, explosive, the first detonator, the first blasting fuse and plug, described plug is blocked in the mouth of pipe of detonator, one end of described first blasting fuse is stretched in detonator, and it is connected on the first detonator, also include the first rubber seal plug, detonator is divided into the first explosion chamber and the first surge chamber by described first rubber seal plug, described first detonator and explosive are all contained in explosion chamber, are provided with liquid nitrogen in described surge chamber。
The principle of this base case and having the beneficial effects that: during directional blasting, lighting the first blasting fuse, fire is guided into the first detonator, final ignition charge by the first blasting fuse。Explosive produces huge impulsive force, the first rubber seal plug play first time cushioning effect。First rubber seal plug is melted by the amount of heat that explosive charge produces, and the liquid nitrogen in the first surge chamber is gone out toward the opposite direction of impulsive force, cancels out each other with impulsive force。Meanwhile, liquid nitrogen quickly becomes gaseous state, thus decreasing the concentration ratio of oxygen, is effectively reduced the generation of fire。Compared with traditional directional blasting device, this programme utilizes liquid nitrogen and the characteristic of the first rubber seal plug, is effectively reduced the vibration that explosion produces。
Scheme two: based on this, scheme is preferred, also include the second blasting fuse, isolation block and the second rubber stopper, described isolation block is arranged in detonator, and it is positioned at the lower section of the first detonator, first surge chamber is divided into the second explosion chamber and the second surge chamber by described second rubber stopper, it is provided with the second detonator and explosive in described second explosion chamber, is provided with liquid nitrogen, described second blasting fuse and the first blasting fuse in described second surge chamber and connects。
The principle of scheme two and having the beneficial effects that: after the short delay of the first blasting cap detonation, the second cap sensitive。Now, the first surge chamber and the impulsive force in the second surge chamber are cancelled out each other, thus decreasing the vibration that explosion produces。Meanwhile, identical with the principle of base case, the second rubber seal plug and liquid nitrogen serve good damping effect。It addition, explosive to be individually positioned in the design of the first explosion chamber and the second explosion chamber, it is possible to reduce the length of single explosion chamber, thus decreasing the explosive force of explosive so that vibration reduces。But, the effect of blast is made up further through multiple spot explosion。
Scheme three: this is the preferred of scheme two, the sidewall of described detonator is provided with blasting fuse passage, and one end of described second blasting fuse is connected on the first blasting fuse, and the other end connects through blasting fuse passage and the second detonator。Relative to positions such as the outer walls that the second blasting fuse is arranged on detonator, the second blasting fuse is contained in blasting fuse passage, not easily occurs making moist and causing situation about failing to explode。
Scheme four: this is the preferred of scheme three, described first rubber seal plug and the second rubber seal plug are nitrile rubber sealing-plug。Nitrile rubber sealing-plug has good oil resistivity, wearability, thermostability and sealing, and result of use is good。
Scheme five: this is the preferred of scheme three, described detonator is paper web, and the inwall of described first surge chamber and the second surge chamber is equipped with barrier film。The blasting cartridge that paper web is made easily is blown, and barrier film then mainly prevents the liquid nitrogen in the first surge chamber and the second surge chamber permeable。
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model directional blasting device embodiment 1；
Fig. 2 is the structural representation of this utility model directional blasting device embodiment 2。
Detailed description of the invention
Below by detailed description of the invention, this utility model is described in further detail:
Accompanying drawing labelling in Figure of description includes: lead squib the 10, first detonation chamber the 101, first surge chamber the 102, second detonation chamber the 103, second surge chamber the 104, first detonator the 20, first blasting fuse 30, plug the 40, first rubber seal plug 50, isolation block the 60, second rubber seal plug the 70, second detonator the 80, second blasting fuse 90。
Embodiment 1
As it is shown in figure 1, directional blasting device, including detonator, explosive, the first detonator, the first blasting fuse, plug and the first rubber seal plug。Detonator is that paper web is made, and the blasting cartridge that paper web is made easily is blown, and explosive effect is good。Plug is blocked in the mouth of pipe above detonator。The lower end of the first blasting fuse is stretched in detonator, and is connected on the first detonator。Detonator is divided into the first explosion chamber and the first surge chamber by the first rubber seal plug, and the first detonator and explosive are all contained in explosion chamber, is provided with liquid nitrogen in surge chamber。First rubber seal plug for make for nitrile rubber sealing-plug, good sealing effect。
During concrete operations, first accomplish fluently borehole, be placed in borehole by this directional explosion device to fix appropriate。During directional blasting, lighting the first blasting fuse, fire is guided into the first detonator, final ignition charge by the first blasting fuse。Explosive produces huge impulsive force, the first rubber seal plug play first time cushioning effect。First rubber seal plug is melted by the amount of heat that explosive charge produces, and the liquid nitrogen in the first surge chamber is gone out toward the opposite direction of impulsive force, cancels out each other with impulsive force。Meanwhile, liquid nitrogen quickly becomes gaseous state, thus decreasing the concentration ratio of oxygen, is effectively reduced the generation of fire。Compared with traditional directional blasting device, this programme utilizes liquid nitrogen and the characteristic of the first rubber seal plug, is effectively reduced the vibration that explosion produces。
Embodiment 2
Difference from Example 1 is in that, this programme also includes the second blasting fuse, isolation block and the second rubber stopper。Isolation block is arranged in detonator, and is positioned at the lower section of the first detonator。First surge chamber is divided into the second explosion chamber and the second surge chamber by the second rubber stopper。Second detonator and explosive are installed in the second explosion chamber, in the second surge chamber, are provided with liquid nitrogen。The sidewall of detonator is provided with blasting fuse passage。The upper end of the second blasting fuse is connected on the first blasting fuse, and lower end end connects through blasting fuse passage and the second detonator。
Wherein, the second rubber seal plug is that nitrile rubber sealing-plug is made, good sealing effect。Detonator is paper web, and the inwall of described first surge chamber and the second surge chamber is equipped with barrier film。The blasting cartridge that paper web is made easily is blown, and barrier film then mainly prevents the liquid nitrogen in the first surge chamber and the second surge chamber permeable。
In specific works process, after the short delay of the first blasting cap detonation, the second cap sensitive。Now, the first surge chamber and the impulsive force in the second surge chamber are cancelled out each other, thus decreasing the vibration that explosion produces。Meanwhile, identical with the principle of base case, the second rubber seal plug and liquid nitrogen serve good damping effect。It addition, explosive to be individually positioned in the design of the first explosion chamber and the second explosion chamber, it is possible to reduce the length of single explosion chamber, thus decreasing the explosive force of explosive so that vibration reduces。But, the effect of blast is made up further through multiple spot explosion。
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this。Should be understood that; for a person skilled in the art, under the premise without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented。The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim。
Claims (5)
1. directional blasting device, including detonator, explosive, the first detonator, the first blasting fuse and plug, described plug is blocked in the mouth of pipe of detonator, one end of described first blasting fuse is stretched in detonator, and is connected on the first detonator, it is characterised in that, also include the first rubber seal plug, detonator is divided into the first explosion chamber and the first surge chamber by described first rubber seal plug, and described first detonator and explosive are all contained in explosion chamber, are provided with liquid nitrogen in described surge chamber。
2. directional blasting device as claimed in claim 1, it is characterized in that, also include the second blasting fuse, isolation block and the second rubber stopper, described isolation block is arranged in detonator, and it being positioned at the lower section of the first detonator, the first surge chamber is divided into the second explosion chamber and the second surge chamber by described second rubber stopper, is provided with the second detonator and explosive in described second explosion chamber, it is provided with liquid nitrogen, described second blasting fuse and the first blasting fuse in described second surge chamber to connect。
3. directional blasting device as claimed in claim 2, it is characterised in that the sidewall of described detonator is provided with blasting fuse passage, and one end of described second blasting fuse is connected on the first blasting fuse, the other end connects through blasting fuse passage and the second detonator。
4. directional blasting device as claimed in claim 3, it is characterised in that described first rubber seal plug and the second rubber seal plug are nitrile rubber sealing-plug。
5. directional blasting device as claimed in claim 3, it is characterised in that described detonator is paper web, and the inwall of described first surge chamber and the second surge chamber is equipped with barrier film。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620073577.XU CN205332934U (en) | 2016-01-26 | 2016-01-26 | Directional blasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620073577.XU CN205332934U (en) | 2016-01-26 | 2016-01-26 | Directional blasting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205332934U true CN205332934U (en) | 2016-06-22 |
Family
ID=56319439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620073577.XU Expired - Fee Related CN205332934U (en) | 2016-01-26 | 2016-01-26 | Directional blasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205332934U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907139A (en) * | 2017-01-20 | 2017-06-30 | 徐斌 | The method that demolition set, blasting system and underground gasification coal seam loosen in advance |
| CN107503728A (en) * | 2017-10-17 | 2017-12-22 | 湖南工学院 | The method that gas permeability of coal seam is improved using orientation hydraulic pressure collection borehole blasting |
| CN107503726A (en) * | 2017-10-17 | 2017-12-22 | 湖南工学院 | Orientation hydraulic pressure for improving gas permeability of coal seam concentrates demolition set |
| CN108176852A (en) * | 2017-12-27 | 2018-06-19 | 湘潭大学 | A kind of vacuum-pumping formula explosive compaction metal powder device and its application method |
-
2016
- 2016-01-26 CN CN201620073577.XU patent/CN205332934U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907139A (en) * | 2017-01-20 | 2017-06-30 | 徐斌 | The method that demolition set, blasting system and underground gasification coal seam loosen in advance |
| CN106907139B (en) * | 2017-01-20 | 2023-09-08 | 徐斌 | Blasting device, blasting system and underground gasified coal seam pre-loosening method |
| CN107503728A (en) * | 2017-10-17 | 2017-12-22 | 湖南工学院 | The method that gas permeability of coal seam is improved using orientation hydraulic pressure collection borehole blasting |
| CN107503726A (en) * | 2017-10-17 | 2017-12-22 | 湖南工学院 | Orientation hydraulic pressure for improving gas permeability of coal seam concentrates demolition set |
| CN107503726B (en) * | 2017-10-17 | 2020-06-26 | 湖南工学院 | Directional water pressure centralized blasting device for improving coal seam air permeability |
| CN108176852A (en) * | 2017-12-27 | 2018-06-19 | 湘潭大学 | A kind of vacuum-pumping formula explosive compaction metal powder device and its application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205332934U (en) | Directional blasting device | |
| CN102914226B (en) | Hollow-hole rhombic parallel cut blasting damping method | |
| CN105735993B (en) | A kind of method of the preventing and treating tight roof type bump based on carbon dioxide explosion | |
| CN101813002B (en) | Coal seam pre-splitting method based on gas extraction | |
| CN103195466B (en) | A kind of directed hydraulic pressure demolition improves the method for gas permeability of coal seam | |
| RU2374604C2 (en) | Self-supported air pipe for blasting and method of rocky ground explosion with its application | |
| CN107631669B (en) | A kind of Cut Blasting optimum design method under large ground pressure | |
| CN103063094A (en) | Channeling method in rapid roadway explosion | |
| CN103161493A (en) | Gas-liquid-solid three-phase coupling blasting weakening rock burst and permeability increasing method | |
| CN110067558A (en) | A kind of severe inclined thick coal seam stope drift active workings joint release prevention and treatment impulsion pressure method | |
| CN213021263U (en) | Water-in-water type explosive special for hydraulic blasting | |
| CN102817633B (en) | The device drawing out methane and the pre-splitting method of the controlled blasting of deep hole crack | |
| CN102080527A (en) | Method and device for detonating and fracturing scattered objects | |
| CN202140076U (en) | Experimental device for laboratory researches of explosion in oil field layers | |
| CN103743304B (en) | Demolition set | |
| CN105043175A (en) | Water pressure blasting method used in tunnel construction | |
| CN204594356U (en) | The quick spacing charge constitution of a kind of novel tunnel light blast hole | |
| CN111473701A (en) | Method suitable for advanced energy-gathering cracking blasting of high-stress ore body | |
| CN207248000U (en) | A kind of carbon dioxide blasting arrangement | |
| LU102183B1 (en) | High-air-impermeability hole sealing method for short-range relieved coal seam crossing gas drainage borehole | |
| CN203687802U (en) | Detonation device with smoothness detecting function | |
| CN206683505U (en) | A kind of modular means for loading of Break-tip Blast In Deep Hole | |
| CN205714197U (en) | A kind of safe blasting system | |
| CN102927863B (en) | A kind of new method of total rock tunnel blasting construction | |
| CN108590737A (en) | A kind of efficient method for implanting of hypotonicity spontaneous fire seam retardant |
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 |
Granted publication date: 20160622 Termination date: 20190126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |