CN217384017U - Deep hole bench blasting air interval powder charge auxiliary device - Google Patents
Deep hole bench blasting air interval powder charge auxiliary device Download PDFInfo
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- CN217384017U CN217384017U CN202221322427.XU CN202221322427U CN217384017U CN 217384017 U CN217384017 U CN 217384017U CN 202221322427 U CN202221322427 U CN 202221322427U CN 217384017 U CN217384017 U CN 217384017U
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Abstract
The utility model relates to a deep hole step blasting air interval powder charge auxiliary device belongs to blasting engineering auxiliary device technical field. The utility model discloses a cartridge case with open-top, cartridge case inner chamber bottom is provided with support piece, and is provided with explosive cartridge supporting baffle in the support piece top, is connected through the spring between explosive cartridge supporting baffle and the support piece, and explosive cartridge supporting baffle can be along the axis direction reciprocating motion of cartridge case, and the fixed location lug that sets up or the interval sets up along its circumference that is provided with of lateral wall of cartridge case. The utility model can realize axial and radial non-coupling charging through the charging barrel and the positioning bulge; in the falling process of the explosive in the blast hole, the explosive is buffered by the spring, so that the explosive cannot deform or be damaged, and the explosive loading quality is improved; the explosion pressure acts on the partition plate and is absorbed and released by the spring, so that the explosion energy can be uniformly released, the action time is prolonged, and the explosion effect is improved.
Description
Technical Field
The utility model relates to a deep hole step blasting air interval powder charge auxiliary device belongs to blasting engineering auxiliary device technical field.
Background
Drilling blasting is a common technology for stone excavation and is widely applied to the fields of water conservancy and hydropower, mines, traffic and the like. The traditional continuous columnar charging has the defects of high unit consumption, overhigh initial detonation pressure and excessive rock crushing, so that the effective energy utilization rate of the explosive is low, large blocks and roots are easy to generate, and a plurality of problems such as blasting vibration damage are caused. The air interval charging technology can reduce the initial peak pressure of the explosive to rocks around the blast hole, so that the explosive pressure in the hole is more uniformly distributed along the axial direction of the blast hole, thereby reducing or avoiding the excessive crushing of the surrounding rocks near the blast hole, enlarging the range of a fracture area, improving the effective utilization rate of explosive blasting energy, reducing the blasting cost and controlling the blasting damage. The air spacer means is a spacer arranged between the air column and the explosive and between the air column and the stemming to bear the weight of the explosive and the stemming.
The conventional air spacer is an air bag, so that the unit price is high, the operation is complicated, the charging efficiency is low, and the blasting cost is high; in addition, as the step blasting drilling hole is generally more than ten meters deep, the explosive cartridge is directly put into the hole after the drilling is finished on site, the explosive cartridge does approximate free-fall motion in the hole, the explosive cartridge per se and the explosive cartridge at the lower part become thick and short even deform and damage due to huge impact force, and the blasting charging quality is seriously reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the deep hole bench blasting air interval charging auxiliary device is simple and convenient to operate, and meanwhile, the charging quality of bench blasting can be effectively improved, and the blasting effect of the bench blasting is improved.
For solving the technical problem the utility model discloses the technical scheme who adopts is: deep hole step blasting air interval powder charge auxiliary device, including the cartridge case that has open-top, cartridge case inner chamber bottom is provided with support piece, and is provided with explosive cartridge supporting baffle above support piece, is connected through the spring between explosive cartridge supporting baffle and the support piece, and explosive cartridge supporting baffle can be along the axis direction reciprocating motion of cartridge case, and the fixed location lug that sets up or the interval sets up along its circumference that is provided with of lateral wall of cartridge case.
Further, the method comprises the following steps: the cartridge case is a circular cylinder, and the one end that the cartridge case was kept away from to the locating lug is arc surface or spherical surface, and is located the same face of cylinder with the cartridge case coaxial line.
Further, the method comprises the following steps: the locating convex block comprises an upper convex block positioned at the upper end of the outer side wall of the cartridge case and a lower convex block positioned at the lower end of the outer side wall of the cartridge case, the upper convex block and the lower convex block are all continuously arranged along the circumferential direction of the cartridge case, and detonating tube through holes are formed in the upper convex block and the lower convex block.
Further, the method comprises the following steps: the spring is in under the natural state, and the explosive cartridge lateral wall is provided with the detonator via hole in explosive cartridge supporting partition's top position.
Further, the method comprises the following steps: the springs are at least three arranged side by side.
Further, the method comprises the following steps: the explosive cartridge supporting clapboard is provided with an axial guide structure.
The utility model has the advantages that: during implementation, the explosives are sequentially placed in the loading barrel, the whole device is placed into the blast hole together, the device does approximate free-fall motion in the blast hole, after the explosive reaches the bottom of the blast hole, the explosive does reciprocating motion under the action of inertia and a spring, so that the gravitational potential energy of the explosive falling process is buffered and consumed, the plurality of spaced loading auxiliary devices are installed by repeating the steps, the blast hole is filled with the explosive, and the blast hole can be completed. The utility model can realize axial and radial non-coupling charging (namely, the axial charging is discontinuous, and the whole blast hole is not filled radially) through the charging barrel and the positioning bulge; in the falling process of the explosive in the blast hole, the explosive is buffered by the spring, so that the explosive cannot deform or be damaged, and the explosive loading quality is improved; the explosion pressure acts on the partition plate, and is absorbed and released by the spring, so that the explosion energy can be uniformly released, the action time is prolonged, the excessive crushing of surrounding rock near the blast hole is effectively controlled, and the explosion effect is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
the labels in the figure are: 1-explosive cartridge, 2-explosive cartridge supporting partition board, 3-spring, 4-positioning lug, 5-detonating tube via hole, 6-detonating tube, 7-detonator, 8-blast hole, 9-blocking section and 10-explosive charging section.
Detailed Description
For the purpose of facilitating understanding and practicing the invention, preferred embodiments of the invention are further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a cartridge 1 with open-top, cartridge 1 inner chamber bottom is provided with support piece, and is provided with explosive cartridge supporting baffle 2 above support piece, is connected through spring 3 between explosive cartridge supporting baffle 2 and the support piece, and explosive cartridge supporting baffle 2 can be along the axis direction reciprocating motion of cartridge 1, and the fixed locating convex block 4 that sets up or the interval sets up along its circumference that is provided with of the lateral wall of cartridge 1. The supporting piece is used as a mounting base of the explosive cartridge supporting partition plate 2 and the spring 3, and can be in a closed bottom plate form or a supporting rib form. The cartridge support baffle 2 may be directly supported by the spring, and of course, in order to increase the structural reliability, an axial guide structure may be provided, for example, by providing a chute guide rail fitting structure between the cartridge support baffle 2 and the inner wall of the cartridge case 1, or by providing a guide post and guide bushing fitting structure between the cartridge support baffle 2 and the support member. In addition, in order to increase the structural reliability, the springs 3 are at least three arranged side by side. The inner diameter of the cartridge 1 is slightly larger than the diameter of the explosive cartridge, and the length of the cartridge 1 is determined according to design requirements and needs to meet the design interval length of axial loading discontinuity. The specification and size of the positioning lug 4 are matched with the blast hole 8, so that the device is integrally and smoothly placed into the blast hole 8, and meanwhile, a spacing space can be formed between the inner wall of the blast hole 8 and the outer wall of the explosive loading barrel 1, and radial uncoupled explosive loading is formed. The parts such as cartridge case 1, explosive cartridge supporting baffle 2, spring 3, location lug 4 all can adopt the plastics material to satisfy blasting construction standard requirement better.
During implementation, the explosive is placed in the explosive loading barrel 1 in sequence, the whole device is placed in the blast hole 8 together, the device does approximate free-fall motion in the blast hole 8, after the explosive reaches the bottom of the blast hole 8, the explosive does reciprocating motion under the action of inertia and the spring 3, so that the gravitational potential energy of the explosive falling process is buffered and consumed, the plurality of spaced explosive loading auxiliary devices are installed by repeating the steps, the blast hole 8 is plugged, the blast hole explosive loading can be completed, the operation is simple and convenient, the explosive cannot deform or break, and the explosive loading quality is improved. After blasting, the explosion pressure acts on the explosive cartridge supporting partition plate 2, and is absorbed and released energy by the spring 3, so that the blasting energy is uniformly released, the action time is prolonged, the excessive crushing of surrounding rock near the blast hole is effectively controlled, and the blasting effect is improved.
In particular, the cartridge 1 can be implemented in various forms, including a circular cylinder or a non-circular cylinder, such as a triangular cylinder, a square cylinder, a regular hexagonal cylinder, etc. During concrete implementation, can directly rely on the inner wall of dress cartridge 1 to carry out radial positioning to the explosive cartridge, also can further set up interior ring structure in dress cartridge 1 and realize the radial positioning of explosive cartridge. For a simple and reliable construction, the cartridge 1 is preferably a circular cylinder. For the device is smoothly transferred, and realize pinpointing, the one end that the cartridge case 1 was kept away from to location lug 4 is arc surface or spherical, and is located the same face of cylinder with cartridge case 1 coaxial line.
The detonator 6 can be directly drawn out from the top opening of the cartridge case 1, but the installation space of the detonator 6 needs to be reserved inside the cartridge case 1, for simplifying the device structure, the detonator 6 is convenient to wear to establish, the utility model discloses can directly set up the detonator via hole 5 at the 1 lateral wall of the cartridge case, the concrete position is: when the spring 3 is in a natural state, the detonating tube via hole 5 is positioned above the explosive cartridge supporting clapboard 2.
The detonator 6 is directly led out from the top opening of the cartridge case 1 or led out from the detonator through hole 5 arranged on the outer side wall of the cartridge case 1, can be led out by utilizing the interval gap between the positioning lug 4 and the blast hole 8, and also can be led out from the interval space between the positioning lug 4 and the positioning lug 4 (the positioning lug 4 in the mode adopts the scheme of annular interval arrangement), and also can be led out from the detonator through hole 5 directly arranged on the positioning lug 4 (the positioning lug 4 in the mode adopts the scheme of annular continuous arrangement).
Regarding the positioning lug 4, the utility model provides an optimal arrangement: the locating convex block 4 is including being located the last lug of 1 lateral wall upper end of powder charge case and being located the lower lug of 1 lateral wall lower extreme of powder charge case, goes up the lug and all sets up in succession along 1 circumference of powder charge case with lower lug, goes up all to be provided with detonator via hole 5 on lug and the lower lug. This mode is convenient for not only wear to establish detonator 6, and the epirelief piece of lower floor's cartridge case 1 can be better to being located the cartridge case 1 of upper story play the location supporting role simultaneously.
Claims (6)
1. Deep hole step blasting air interval powder charge auxiliary device, its characterized in that: including cartridge case (1) that has open-top, cartridge case (1) inner chamber bottom is provided with support piece, and is provided with explosive cartridge supporting baffle (2) above support piece, is connected through spring (3) between explosive cartridge supporting baffle (2) and the support piece, explosive cartridge supporting baffle (2) can be along the axis direction reciprocating motion of cartridge case (1), and the lateral wall of cartridge case (1) is fixed to be provided with along its circumference sets up in succession or location lug (4) that the interval set up.
2. The deep hole bench blasting air space charge auxiliary device of claim 1, wherein: the cartridge (1) is a circular cylinder, and one end of the positioning lug (4) far away from the cartridge (1) is an arc surface or a spherical surface and is positioned on the same cylindrical surface coaxial with the cartridge (1).
3. The deep hole bench blasting air space charge auxiliary device of claim 1, wherein: the positioning lug (4) comprises an upper lug positioned at the upper end of the outer side wall of the cartridge loading barrel (1) and a lower lug positioned at the lower end of the outer side wall of the cartridge loading barrel (1), the upper lug and the lower lug are all continuously arranged along the circumferential direction of the cartridge loading barrel (1), and the upper lug and the lower lug are all provided with detonating tube via holes (5).
4. The deep hole bench blasting air space charge auxiliary device of claim 1, wherein: the spring (3) is in a natural state, and the outer side wall of the explosive cartridge (1) is provided with a detonating tube through hole (5) above the explosive cartridge supporting partition plate (2).
5. The deep hole bench blasting air space charge auxiliary device of claim 1, wherein: the springs (3) are at least three arranged side by side.
6. The deep hole bench blasting air space charge auxiliary device of any one of claims 1-5, wherein: the explosive cartridge supporting clapboard (2) is provided with an axial guide structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322427.XU CN217384017U (en) | 2022-05-30 | 2022-05-30 | Deep hole bench blasting air interval powder charge auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322427.XU CN217384017U (en) | 2022-05-30 | 2022-05-30 | Deep hole bench blasting air interval powder charge auxiliary device |
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| Publication Number | Publication Date |
|---|---|
| CN217384017U true CN217384017U (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221322427.XU Active CN217384017U (en) | 2022-05-30 | 2022-05-30 | Deep hole bench blasting air interval powder charge auxiliary device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697844A (en) * | 2023-08-07 | 2023-09-05 | 山西中煤平朔***器材有限责任公司 | Strip mine rock perforation blasting charging device and charging method |
-
2022
- 2022-05-30 CN CN202221322427.XU patent/CN217384017U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697844A (en) * | 2023-08-07 | 2023-09-05 | 山西中煤平朔***器材有限责任公司 | Strip mine rock perforation blasting charging device and charging method |
| CN116697844B (en) * | 2023-08-07 | 2023-10-03 | 山西中煤平朔***器材有限责任公司 | Strip mine rock perforation blasting charging device and charging method |
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