CN202853507U - Blasting explosive grain with anti-sliding mechanism - Google Patents
Blasting explosive grain with anti-sliding mechanism Download PDFInfo
- Publication number
- CN202853507U CN202853507U CN 201220541506 CN201220541506U CN202853507U CN 202853507 U CN202853507 U CN 202853507U CN 201220541506 CN201220541506 CN 201220541506 CN 201220541506 U CN201220541506 U CN 201220541506U CN 202853507 U CN202853507 U CN 202853507U
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- China
- Prior art keywords
- blasting explosive
- explosive grain
- powder column
- sliding mechanism
- explosion
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Abstract
The utility model discloses a blasting explosive grain with an anti-sliding mechanism. The blasting explosive grain with the anti-sliding mechanism comprises a cylindric blasting explosive grain body. Two symmetrical holes are formed in the tube wall of the blasting explosive grain body in radial direction. At least two steel wires are inserted in the holes. The steel wires are more than twice as long as the diameter of the blasting explosive grain body. Two ends of the steel wires are outside of the blasting explosive grain body and symmetric to each other. The blasting explosive grain with the anti-sliding mechanism has the advantages that the steel wires have good elasticity, by using the steel wires, the blasting explosive grain is guaranteed to be sent into a blast hole by a tamper smoothly, and the blasting explosive grain is guaranteed to not glide in the blast hole. The blasting explosive grain with the anti-sliding mechanism is reasonable in designing structure, easy to operate, low in cost and convenient to popularize and use.
Description
Technical field
The utility model belongs to coal mine deep hole blasting technique field, is specifically related to make a kind of explosion powder column with anti-slipping mechanism for the coal mine deep hole explosion of coal seam or rock stratum presplitting.
Background technology
At present, under the coal mine, strengthen anti-reflection in order to take out lane boring at the bottom of the leading reduction of back production coal seam tight roof or the high Coal Seam Prone To Outburst of low-permeable, all need to be at working face or tunnel up-hole (30～90 ° of positive pitches, deep hole blasting is carried out in hole depth 15～110m) powder charges, and a cumbersome and job that waste time and energy is exactly the powder charge problem.Adopt explosive loader that the powdery permitted explosive for coal mine is sprayed in the big gun hole, powder charge speed is fast, and (see Chinese patent " injection air-control mine charging machine ", the patent No. is 99249882; " the on-the-spot explosive loader of explosion ", the patent No. is 200520024404.0), but the powdery permitted explosive for coal mine exists that the blasting explosive secure rank is low, the toxic gas content that produces after the explosive detonation, blast is high and forbid using in high gas and outburst mine.And when blast hole depth during greater than 40m, this loading method is difficult to again explosive is sent in the big gun hole.If packing into, the coal mine gas extraction blasting grain that adopts tamper that the safe emulsion explosive for coal mine of height or high safe water gel explosives for mine are made with the anlistatig plastic tube of retardant surfaces (sees Chinese patent " coal mine gas extraction blasting grain " in the big gun hole, the patent No. is 200920173412.X), when inclination angle, big gun hole during less than 15 °, the explosion powder column can be packed in the big gun hole and do not glide by the frictional force between explosion powder column and the big gun hole inwall, and when inclination angle, big gun hole is 30～90 °, because big gun hole inner wall smooth, the explosion powder column glides in the hole and is difficult to fix, and brings very hang-up to powder charge.
In order to prevent that the explosion powder column from gliding in the big gun hole, the one, with bamboo chip with a plurality of explosion powder columns bundles into strips, once to send in the hole with tamper, during less than 30 °, hole depth is also inadequate less than the blast hole projectile filling of 15m for the inclination angle for this.But larger for the inclination angle, hole depth is greater than the big gun hole of 15m, and this loading method is then helpless.
The utility model content
The deficiency that can't fix in the big gun hole in order to overcome prior art borehole blasting powder column, the utility model provide a kind of explosion powder column with anti-slipping mechanism for the coal mine deep hole explosion.
Concrete technical scheme of the present utility model is as follows:
A kind of explosion powder column with anti-slipping mechanism comprises columned explosion powder column body 1, and the radially tube wall of described explosion powder column body 1 is provided with the aperture 3 of two symmetries, is inserted with the steel wire 2 more than in the aperture 3; The length of described steel wire 2 is greater than more than a times of explosion powder column body 1 diameter, and the two ends of steel wire 2 are positioned at the outside of explosion powder column body 1, and symmetrically.
Useful technique effect of the present utility model is: steel wire has preferably elastic force, uses steel wire both to guarantee with tamper the explosion powder column to be sent into the big gun hole smooth and easy, has guaranteed that again the explosion powder column does not glide in the hole.
The utility model has the advantage of: reasonable in design, simple to operate, cost is low, is convenient to promote the use of.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of explosion powder column body 1 of the present utility model.
Fig. 3 is that the utility model uses view.
Sequence number among the upper figure: explosion powder column body 1, steel wire 2, aperture 3, big gun hole 4.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment 1:
As shown in Figure 1, a kind of explosion powder column with anti-slipping mechanism comprises that diameter is that 50mm, length are the columned explosion powder column body 1 of 1m.The diameter that the tube wall of described explosion powder column body 1 directly upwards is provided with two symmetries is the aperture 3 of 5mm, sees Fig. 2.Being inserted with a diameter in the aperture 3 is that 4mm, length are the steel wire 2 of 150mm.The two ends of described steel wire 2 are positioned at the outside of explosion powder column body 1, and symmetrically.
As shown in Figure 3, during use, will send in the big gun hole of 30 ° at inclination angle, hole depth 25m, aperture 60mm with the explosion powder column of anti-slipping mechanism with tamper, and guarantee namely that the deep hole blasting powder charge is smooth and easy and do not glide.
Embodiment 2:
As shown in Figure 1, a kind of explosion powder column with anti-slipping mechanism comprises that diameter is that 75mm, length are the columned explosion powder column body 1 of 1m.The diameter that the tube wall of described explosion powder column body 1 directly upwards is provided with two symmetries is the aperture 3 of 7mm, sees Fig. 2.Being inserted with two diameters in the aperture 3 is that 3mm, length are the steel wire 2 of 220mm.The two ends of described steel wire 2 are positioned at the outside of explosion powder column body 1, and symmetrically.
As shown in Figure 3, during use, will send in the big gun hole 4 of 45 ° at inclination angle, hole depth 90m, aperture 91mm with the explosion powder column of anti-slipping mechanism with tamper, and guarantee namely that the deep hole blasting powder charge is smooth and easy and do not glide.
Claims (1)
1. explosion powder column with anti-slipping mechanism, comprise columned explosion powder column body (1), it is characterized in that: the radially tube wall of described explosion powder column body (1) is provided with the aperture (3) of two symmetries, is inserted with the steel wire (2) more than in the aperture (3); The length of described steel wire (2) is greater than more than a times of explosion powder column body (1) diameter, and the two ends of steel wire (2) are positioned at the outside of explosion powder column body (1), and symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220541506 CN202853507U (en) | 2012-10-23 | 2012-10-23 | Blasting explosive grain with anti-sliding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220541506 CN202853507U (en) | 2012-10-23 | 2012-10-23 | Blasting explosive grain with anti-sliding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853507U true CN202853507U (en) | 2013-04-03 |
Family
ID=47984693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220541506 Expired - Fee Related CN202853507U (en) | 2012-10-23 | 2012-10-23 | Blasting explosive grain with anti-sliding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853507U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843162A (en) * | 2016-09-19 | 2018-03-27 | 中国矿业大学(北京) | High inclination-angle blasthole for deep hole blasting blocks non-return device |
| CN112902778A (en) * | 2021-02-02 | 2021-06-04 | 安徽理工大学 | Ultra-deep hole presplitting blasting powder feeding method and device |
| CN114858023A (en) * | 2022-06-24 | 2022-08-05 | 青岛理工大学 | Gun stick device and method for placing symmetrical detonating fuse initiating explosive columns |
-
2012
- 2012-10-23 CN CN 201220541506 patent/CN202853507U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843162A (en) * | 2016-09-19 | 2018-03-27 | 中国矿业大学(北京) | High inclination-angle blasthole for deep hole blasting blocks non-return device |
| CN112902778A (en) * | 2021-02-02 | 2021-06-04 | 安徽理工大学 | Ultra-deep hole presplitting blasting powder feeding method and device |
| CN114858023A (en) * | 2022-06-24 | 2022-08-05 | 青岛理工大学 | Gun stick device and method for placing symmetrical detonating fuse initiating explosive columns |
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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: 20130403 Termination date: 20161023 |