CN218723579U - Multidirectional energy-gathering blasting tube device for centered explosive charging - Google Patents
Multidirectional energy-gathering blasting tube device for centered explosive charging Download PDFInfo
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- CN218723579U CN218723579U CN202223040686.6U CN202223040686U CN218723579U CN 218723579 U CN218723579 U CN 218723579U CN 202223040686 U CN202223040686 U CN 202223040686U CN 218723579 U CN218723579 U CN 218723579U
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Abstract
The utility model relates to a multidirectional ability blast pipe device of powder charge placed in middle belongs to the blasting technical field and uses. The energy-accumulating blasting tube comprises an energy-accumulating blasting tube body, wherein a cavity filled with explosives is arranged in the energy-accumulating blasting tube body, and 6 energy-accumulating grooves are uniformly distributed on the energy-accumulating blasting tube body, so that energy generated by explosive explosion is released at the energy-accumulating grooves in a concentrated manner, and energy-accumulating blasting in multiple directions is realized. The inner side of the wall of the energy-accumulating blasting tube is provided with the buffer cavity, so that part of energy of instantaneous explosion is consumed, a good effect of buffering peak pressure to protect the hole wall is achieved, the action time is prolonged, the explosion gas promotes the crack to expand farther, and the rock mass crushing range is enlarged. The arc-shaped elastic foam is adhered to the outer surface of the tube body of the energy-gathered blasting tube, the good compressibility is achieved, the elastic foam is extruded to fill the multidirectional energy-gathered blasting tube device into the blast hole, the foam rebounds to fix the energy-gathered blasting tube at the center of the blast hole, and the explosive energy generates directional cracks in the designated direction.
Description
Technical Field
The utility model relates to a multidirectional ability blast pipe device of powder charge placed in middle is particularly useful for blasting field increase broken rock efficiency, and the increase rock sends the scope of splitting, improves the distribution proportion of explosive energy on the rock breaks.
Background
Blasting is used as a main high-efficiency rock breaking mode at present and is widely applied to excavation of various rock mass projects. Although a large amount of energy released by explosion can effectively complete rock breaking work, how to efficiently utilize the energy generated by the explosion is always a difficult problem which troubles the engineering world. How to distribute the explosion energy in the cracking action and the crushing action in a reasonable mode depends on specific engineering. Such as: in underground mining engineering, the crushing lump degree needs to be ensured, the ore removal requirement is met, and the explosion energy is hopefully used for crushing and throwing rocks as much as possible; and when the tunnel is tunneled, the rock mass is crushed to meet the requirement of on-site loading and slag discharging, a large amount of energy loss caused by excessive crushing is caused, and the rock breaking efficiency is reduced. Therefore, the construction efficiency and cost are directly affected by the utilization condition of energy generated by explosion, and reasonable distribution and control of the energy are necessary in the explosion process.
At present, a directional fracture explosion energy control technology is realized by changing a charge structure, for example, rock breaking is realized by joint-cutting charge, a dual-energy-gathering smooth blasting technology is widely applied, but the problems that the explosion energy loss is caused by the crushing and excessive damage of a rock body, the cracking effect of the rock far away from an explosion source region is reduced and the like exist, and for the excavation engineering with low requirement on the breaking degree, only a small part of explosion energy is used for effectively breaking the rock, the energy utilization rate is low, and the explosion cost is increased. The explosive cartridge and the energy-accumulating blasting tube can be tightly attached to one side of the blast hole under the action of gravity, and the center of the explosive cartridge is not coincident with the central axis of the blast hole, so that explosive energy is unevenly applied to the wall surface of the blast hole, the complete control on explosive energy distribution is realized, and the energy-accumulating blasting tube is prevented from deviating in the blast hole and still has great difficulty.
SUMMERY OF THE UTILITY MODEL
The not enough that exists to prior art, the utility model provides a multidirectional of powder charge placed in middle gathers can blast tube device to solve the problem that proposes in the above-mentioned background, be particularly useful for solving and prevent to gather can the blast tube skew to appear in the big gun hole, make the explosive energy produce directional crack in the assigned direction, extension explosive gas action time, it is farther to make the explosive crack propagation, increase rock fracturing scope, improve the distribution ratio of explosive energy on the rock breaks, effectively improve the broken rock efficiency that gathers can the blasting.
In order to realize the technical requirement, the utility model relates to a multidirectional ability blasting cartridge device of powder charge placed in middle, including gathering the blasting cartridge body, gathering the intraductal powder charge chamber that forms of blasting cartridge, be equipped with on gathering the blasting cartridge body and gather the groove, gather and to be stained with elastic foam on the blasting cartridge body surface.
The energy-gathered blasting tube body is made of PVC materials, the thickness of the tube wall is 2mm, a charging cavity is formed in the energy-gathered blasting tube body, explosives are conveniently and directly filled in the energy-gathered blasting tube body, and the charging efficiency is improved.
The energy-accumulating blasting tube is characterized in that 6 energy-accumulating grooves are formed in the energy-accumulating blasting tube body, the angle of the groove opening is 60 degrees, the energy-accumulating grooves are uniformly distributed on the energy-accumulating blasting tube body, after the explosive is detonated, the energy-accumulating grooves are strongly compressed under the action of detonation waves, energy-accumulating jet flow moving at high speed is formed in the energy-accumulating direction, and energy-accumulating blasting in multiple directions can be realized.
Elastic foam is adhered to the outer surface of the tube body of the energy-gathered blasting tube, the energy-gathered blasting tube is filled into the blast hole by compressing the elastic foam, and the elastic foam is expanded and rebounded in the blast hole. The elastic foam is tightly attached to the blast hole, and the energy-accumulating blasting tube body is fixed at the center of the blast hole, so that the energy-accumulating blasting tube is prevented from deviating in the blast hole, and the explosive energy generates directional cracks in the designated direction.
The energy-accumulating blasting tube is characterized in that a buffer cavity is arranged on the inner side of the tube body of the energy-accumulating blasting tube, no filling material is arranged in the buffer cavity, the inner side wall of the buffer cavity is thickened to 4mm, partial energy of instantaneous explosion is absorbed, good effect of protecting the hole wall by buffering peak pressure is achieved, the action time is prolonged, the explosive gas enables cracks to expand farther, the rock mass crushing range is expanded, and the energy-accumulating direction crack expansion length is obviously larger than the non-energy-accumulating direction.
The utility model has the advantages that: the energy-gathered blasting tube body is made of PVC materials, the thickness of the tube wall is 2mm, a large-diameter explosive loading cavity is formed in the energy-gathered blasting tube body, explosives are conveniently and directly filled, and the explosive loading efficiency is improved. The energy-accumulating blasting tube is characterized in that 6 energy-accumulating grooves are formed in the energy-accumulating blasting tube body, so that the energy-accumulating grooves are uniformly distributed on the energy-accumulating blasting tube body, after the explosive is detonated, the energy-accumulating grooves are strongly compressed under the action of detonation waves, an energy-accumulating jet flow moving at a high speed is formed in the energy-accumulating direction, the energy-accumulating blasting in multiple directions can be realized, the number of blast holes can be effectively reduced, the blasting cost is reduced, and the rock cracking range is enlarged. Elastic foam is adhered to the outer surface of the energy-gathered blasting tube body, and the energy-gathered blasting tube body is fixed at the center of the blast hole through the resilience effect of the elastic foam. The energy-gathered blasting tube is prevented from deviating in a blast hole, so that explosive energy generates directional cracks in the specified direction, and the distribution proportion of the explosive energy on rock fracture is improved. The buffering cavity is arranged on the inner side of the energy-gathered blasting tube body, so that part of energy of instantaneous explosion is consumed, a good effect of buffering peak pressure to protect the hole wall is achieved, the action time is prolonged, the explosive gas promotes cracks to expand farther, and the rock mass crushing range is enlarged.
Drawings
Fig. 1 is the cross-sectional schematic view of the utility model discloses a multidirectional energy-gathered blasting cartridge device of powder charge placed in middle.
Fig. 2 is the utility model discloses a multidirectional ability blast pipe device's of powder charge placed in the middle big gun hole interior sketch map.
Fig. 3 is the structure schematic diagram of the utility model relates to a multidirectional energy-gathering blasting cartridge device of powder charge placed in the middle.
In the figure: 1-energy-gathering blasting tube body, 2-charging cavity, 3-energy-gathering groove, 4-elastic foam, 5-buffer cavity and 6-blast hole.
Detailed Description
The drawings are for illustration only; for better explanation of the present embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product, and some well-known structures in the drawings and descriptions thereof may be omitted for those skilled in the art, and thus, they should not be construed as limiting the present invention.
For making the utility model discloses the effect of technical problem, innovation scheme, achievement that solve can be more clear, combines figure and detailed implementation mode below, further explains the utility model discloses.
Referring to fig. 1-3, a multidirectional energy-gathering blasting tube device for centered powder charging comprises an energy-gathering blasting tube body 1, a powder charging cavity 2 is formed in the energy-gathering blasting tube body 1, an energy-gathering groove 3 is formed in the energy-gathering blasting tube body 1, elastic foam 4 is adhered to the outer surface of the energy-gathering blasting tube body 1, and a buffer cavity 5 is arranged on the inner side of the energy-gathering blasting tube body 1.
Wherein can gather blasting cartridge body 1 and adopt the PVC material, and the wall thickness is 2mm, forms major diameter powder charge chamber 2 in gathering the blasting cartridge body 1, makes things convenient for the explosive to directly fill, has improved the powder charge efficiency.
The energy-accumulating blasting tube body 1 is provided with 6 energy-accumulating grooves 3, the angle of the groove opening is 60 degrees, the energy-accumulating blasting tube body 1 is uniformly distributed, after the explosive charges are detonated, the blast hole wall is uniformly pressed in a non-set direction, and is intensively pulled in the set direction, so that the rock body is formed by tension cracking in the set direction, directional damage is generated, energy-accumulating blasting in multiple directions can be realized, the blasting efficiency is improved, and a good energy-accumulating blasting effect is achieved.
Wherein, the inner side of the energy-gathered blasting tube body 1 is provided with the buffer cavity 5, which consumes part of energy of instantaneous explosion, plays a good role of buffering peak pressure to protect the hole wall, prolongs the action time, and promotes the crack to expand farther by the explosive gas, thereby enlarging the rock mass crushing range.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a multidirectional energy-gathered blast pipe device of powder charge placed in middle, is including gathering energy blast pipe body (1), form powder charge chamber (2) in gathering energy blast pipe body (1), be equipped with on gathering energy blast pipe body (1) and gather energy groove (3), gather energy blast pipe body (1) surface and glue there are elastic foam (4), gather energy blast pipe body (1) inboard and be equipped with cushion chamber (5).
2. A center-charge, multidirectional shaped charge blasting tube apparatus according to claim 1, wherein: the energy-accumulating blasting tube body (1) is made of PVC materials, the thickness of the tube wall is 2mm, a large-diameter explosive loading cavity (2) is formed in the energy-accumulating blasting tube body (1), explosives are conveniently and directly filled, and the explosive loading efficiency is improved.
3. A center-charge, multidirectional shaped charge detonator device according to claim 1, wherein: the energy-gathered blasting tube body (1) is provided with 6 energy-gathered grooves (3), the angle of each groove opening is 60 degrees, and the energy-gathered blasting tube body is uniformly distributed on the energy-gathered blasting tube body (1).
4. A center-charge, multidirectional shaped charge blasting tube apparatus according to claim 1, wherein: elastic foam (4) are adhered to the outer surface of the energy-gathered blasting tube body (1), the energy-gathered blasting tube is filled into the blast hole (6) by compressing the elastic foam (4), the elastic foam (4) rebounds in the blast hole (6), the energy-gathered blasting tube body (1) is fixed at the center of the blast hole, the energy-gathered blasting tube is prevented from deviating in the blast hole, and the explosive energy generates directional cracks in the designated direction.
5. A center-charge, multidirectional shaped charge blasting tube apparatus according to claim 1, wherein: the inner side of the energy-gathered blasting tube body (1) is provided with a buffer cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223040686.6U CN218723579U (en) | 2022-11-16 | 2022-11-16 | Multidirectional energy-gathering blasting tube device for centered explosive charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223040686.6U CN218723579U (en) | 2022-11-16 | 2022-11-16 | Multidirectional energy-gathering blasting tube device for centered explosive charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218723579U true CN218723579U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223040686.6U Active CN218723579U (en) | 2022-11-16 | 2022-11-16 | Multidirectional energy-gathering blasting tube device for centered explosive charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218723579U (en) |
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2022
- 2022-11-16 CN CN202223040686.6U patent/CN218723579U/en active Active
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