CN205332932U - Blasting explosive installs between two parties - Google Patents
Blasting explosive installs between two parties Download PDFInfo
- Publication number
- CN205332932U CN205332932U CN201620068596.3U CN201620068596U CN205332932U CN 205332932 U CN205332932 U CN 205332932U CN 201620068596 U CN201620068596 U CN 201620068596U CN 205332932 U CN205332932 U CN 205332932U
- Authority
- CN
- China
- Prior art keywords
- explosive
- internal ring
- energy
- rendrock
- big gun
- 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
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model discloses a blasting explosive installs between two parties, it includes inner ring (1), and inner ring (1) outside is fixed with backing sheet (2), and preforming (6) and support column (4) fixed connection are connected through spring (5) and the inboard of inner ring (1) in preforming (6), the utility model provides a prior art blasting explosive cartridge bag can not be fine between two parties in the downthehole problem of big gun because the explosive can not be effectual placed in the middle in the big gun hole, again because downthehole space is narrow airtight, the energy of explosion after -action in all directions is inconsistent, and detonation -wave and penetrated wave can not effectually superpose to lead to a large amount of energy dissipation, the distance of energy transfer is nearer, and explosive energy efficient utilization ratio is not ideal, can not reach technical problem such as comparison ideal blasting effect.
Description
Technical field
This utility model belongs to blasting technique, particularly relates to a kind of rendrock centering means。
Background technology
In major part blast working process, in big gun hole, charging means is mainly continuously closely knit charging means and Uncoincided charge mode, and the main Uncoincided charge mode that adopts in explosion now, which explosive is adopted directly not contact with the hole wall in big gun hole, when water or air-decouple charge explosion, in hole mechanism approximately as: after explosive charge, when detonation wave arrives the separating surface of detonation product and water or air, there is transmission and reflection, to one centripetal rarefaction wave of detonation product internal reflection, transmission Cylindrical Shock in water or air, water or air dielectric evoke explosion wave。A cylindrical wave will be produced and radially propagate in media as well, transmission and reflection occur when arriving hole wall and in water, reflects a centric(al) impact ripple；Such mechanism can in big gun hole repeatedly, and its result is that in water, dynamic pressure amplitude tends to balance。In conventional blasting method, detonation pressure is increased to tens thousand of MPas in the play of having to go to the toilet of several microseconds, and has excited shock wave in the ore deposit rock of explosive internal layer, and its intensity is considerably beyond the comprcssive strength of rock。If explosive is in big gun hole under detonation wave consumingly percussion, surrounding rock can be subject to comminuted destruction and form y crush zone, eventually results in powder increasing proportion after explosion。Simultaneously because ore deposit rock suffers strong pulverizing, initial stage energy expenditure is very big, and explosive energy effective rate of utilization reduces。Therefore, crush zone should be avoided the formation of during explosion as far as possible。Outside crush zone, under the combined effect of stress wave and detonation gas, along with the formation of radial cracking, circumferential crack and tangent cracks, producing the rupture zone that a crackle is grown, this part is then the burst region forming better quality。In order to reduce initial detonation pressure, reduce the generation of powder, improve blasting quality, reduce explosive consumption, effectively utilize explosive energy, now generally utilize the material such as water or air explosive and big gun hole wall to be separated as blank medium, and then reduce blast wave and act on the initial pressure of hole wall, effectively extend the action time of blast load, make around big gun hole, to produce crush zone and significantly reduce, thus being effectively increased explosive energy utilization rate。But owing to explosive can not be effectively placed in the middle in big gun hole, again due in hole narrow space airtight, after blast, detonation wave and transmitted wave can not effectively superpositions, thus causing a large amount of energy dissipation, the distance of energy transmission is closer, explosive energy effective rate of utilization is not ideal, it is impossible to reach more satisfactory demolition effect。
Utility model content:
The technical problems to be solved in the utility model: a kind of rendrock centering means is provided, to solve the problem that prior art rendrock can not be placed in the middle very well, owing to explosive can not be effectively placed in the middle in big gun hole, again due in hole narrow space airtight, after blast detonation wave and transmitted wave can not effectively superposition, thus causing a large amount of energy dissipation, the distance of energy transmission is closer, explosive energy effective rate of utilization is not ideal, it is impossible to reach the technical problems such as more satisfactory demolition effect。
Technical solutions of the utility model:
A kind of rendrock centering means, it includes internal ring, is fixed with support chip outside internal ring, and tabletting is connected with the inner side of internal ring by spring, and tabletting is fixing with support column to be connected。
The quantity of support chip is at least 2。
Tabletting inwall contacts with explosive medicated bag, and spring compresses explosive medicated bag by tabletting。
The diameter of internal ring 15-18 millimeter less of blasthole diameter。
The spacing of internal ring and explosive medicated bag is 3-5 millimeter。
The material of described internal ring, support chip, support column and tabletting is steel。
The length of support chip is 13mm-15mm, and the length of support column is 18mm-23mm。
The beneficial effects of the utility model:
The purpose of this utility model is in that the center allowing explosive medicated bag be in big gun hole, make to isolate with air dielectric between big gun hole inwall and explosive medicated bag, and be not directly contacted with, after explosive charge, first explosive energy is passed to ambient air, the hole wall in big gun hole is passed to again by air, when detonation wave arrives the separating surface of detonation product and water or air, there is transmission and reflection, to one centripetal rarefaction wave of detonation product internal reflection, transmission Cylindrical Shock in water or air, evokes explosion wave in water or air dielectric。A cylindrical wave will be produced and radially propagate in media as well, transmission and reflection occur when arriving hole wall and in water, reflects a centric(al) impact ripple；Such mechanism can in big gun hole repeatedly, and its result is that in water, dynamic pressure amplitude tends to balance。Owing to this device makes explosive medicated bag occupy big gun hole centre, so the transmitted wave occurred and reflection wave energy are well overlapping, what make that blasting energy transmits is farther, the effect of explosion becomes apparent from, improve the effective rate of utilization of explosive charge energy, reduce explosive specific charge, make blasting cost be reduced, in reducing blasting flyrock, have obvious effect simultaneously。This utility model solves the problem that prior art rendrock medicated bag can not be centered in big gun hole very well, owing to explosive can not be effectively placed in the middle in big gun hole, again due in hole narrow space airtight, the energy in all directions is acted on inconsistent after blast, and detonation wave and transmitted wave can not effectively superposition, thus causing a large amount of energy dissipation, the distance of energy transmission is closer, explosive energy effective rate of utilization is not ideal, it is impossible to reach the technical problems such as more satisfactory demolition effect。
Accompanying drawing illustrates:
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model schematic side view；
Fig. 3 is this utility model schematic top plan view。
Detailed description of the invention:
A kind of rendrock centering means is shown in (Fig. 1 and Fig. 3), and it includes internal ring 1, is fixed with support chip 2 outside internal ring 1, and tabletting 6 is connected with the inner side of internal ring 1 by spring 5, and tabletting 6 is fixing with support column 4 to be connected。
The quantity of support chip 2 is at least 2, and internal ring 1 fixed by support chip 2 together with support column 4, makes internal ring 1 with big gun hole contact internal walls, will not fix internal ring 1 simultaneously, make internal ring 1 will not tilt and topple over。
Tabletting 6 inwall contacts with explosive medicated bag 3, and spring 5 compresses explosive medicated bag 3 by tabletting 6, makes explosive medicated bag 3 will not move in internal ring, it is ensured that explosive medicated bag 3 is positioned exactly at the centre position in big gun hole after putting into big gun hole by internal ring 1。
The diameter of internal ring 1 15-18 millimeter less of blasthole diameter, it is ensured that the internal ring 1 installing explosive medicated bag 3 smooth and easy can put into big gun hole, simultaneously again without influence on explosive effect。
The spacing of internal ring 1 and explosive medicated bag 3 is 3-5 millimeter。Guarantee that explosive medicated bag 3 can put into internal ring 1 smoothly, make tabletting 6 can reliably compress explosive medicated bag 3 by spring 5, it is ensured that explosive medicated bag 3 will not move, it is possible to reliably fixes。
The material of described internal ring 1, support chip 2, support column 4 and tabletting 6 is steel。This material is adopted to make whole device have the characteristics such as certain intensity, pressure, wear-resisting, acid and alkali-resistance。
The length of support chip 2 is 13mm-15mm, and the length of support column 4 is 18mm-23mm。Enable secure support internal ring 1。After the purpose of length many 5-8 millimeter of the length ratio support chip 2 of support column 4 is to ensure that tabletting 6 compresses explosive medicated bag 3, the length of support column is substantially uniform with the length of support chip, makes internal ring 1 can be positioned exactly at big gun hole central authorities。
Claims (8)
1. a rendrock centering means, it includes internal ring (1), it is characterised in that: internal ring (1) outside is fixed with support chip (2), and tabletting (6) is connected by the inner side of spring (5) with internal ring (1), and tabletting (6) is fixing with support column (4) to be connected。
2. a kind of rendrock centering means according to claim 1, it is characterised in that: the quantity of support chip (2) is at least 2。
3. a kind of rendrock centering means according to claim 1, it is characterised in that: tabletting (6) inwall contacts with explosive medicated bag (3), and spring (5) compresses explosive medicated bag (3) by tabletting (6)。
4. a kind of rendrock centering means according to claim 1, it is characterised in that: the diameter 15-18 millimeter less of blasthole diameter of internal ring (1)。
5. a kind of rendrock centering means according to claim 1, it is characterised in that: the spacing of internal ring (1) and explosive medicated bag (3) is 3-5 millimeter。
6. a kind of rendrock centering means according to claim 1, it is characterised in that: the material of described internal ring (1), support chip (2), support column (4) and tabletting (6) is steel。
7. a kind of rendrock centering means according to claim 1, it is characterised in that: the length of support chip (2) is 13 millimeters-15 millimeters, and the length of support column (4) is 18 millimeters-23 millimeters。
8. a kind of rendrock centering means according to claim 1, it is characterised in that: the thickness of the internal ring (1) of this device is 25 millimeters。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620068596.3U CN205332932U (en) | 2016-01-25 | 2016-01-25 | Blasting explosive installs between two parties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620068596.3U CN205332932U (en) | 2016-01-25 | 2016-01-25 | Blasting explosive installs between two parties |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205332932U true CN205332932U (en) | 2016-06-22 |
Family
ID=56318532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620068596.3U Expired - Fee Related CN205332932U (en) | 2016-01-25 | 2016-01-25 | Blasting explosive installs between two parties |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205332932U (en) |
-
2016
- 2016-01-25 CN CN201620068596.3U patent/CN205332932U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160622 Termination date: 20220125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |