CN220541871U - Blasting device with linear cutting shaped charge structure - Google Patents
Blasting device with linear cutting shaped charge structure Download PDFInfo
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- CN220541871U CN220541871U CN202321134663.3U CN202321134663U CN220541871U CN 220541871 U CN220541871 U CN 220541871U CN 202321134663 U CN202321134663 U CN 202321134663U CN 220541871 U CN220541871 U CN 220541871U
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- Prior art keywords
- liner
- shell
- top plate
- explosive
- paraboloid
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- 238000005422 blasting Methods 0.000 title claims abstract description 35
- 238000005520 cutting process Methods 0.000 title claims abstract description 17
- 239000002360 explosive Substances 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000011435 rock Substances 0.000 claims abstract description 13
- 238000004880 explosion Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 239000004575 stone Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 238000003306 harvesting Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- SPSSULHKWOKEEL-UHFFFAOYSA-N 2,4,6-trinitrotoluene Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O SPSSULHKWOKEEL-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000015 trinitrotoluene Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The embodiment of the utility model discloses a blasting device with a linear cutting shaped charge structure, which relates to the technical field of rock blasting, and comprises a shell and a liner; the shell comprises a top plate and a side plate, wherein the side plate is connected with the top plate and encloses a charging structure with an energy collecting port at one end together with the top plate, and the energy collecting port is used for carrying out directional linear convergence on kinetic energy generated after the explosive contained in the charging structure explodes; the top plate is provided with a detonating cap placing port; the liner is arranged at the energy collecting opening of the shell and forms a closed cavity with the shell for mounting explosive; the height of the closed cavity is larger than that of the detonating primer to be placed; the liner is a parabolic metal liner, the outer side of the periphery of the liner is fixedly connected with the inner side of the energy collecting port, and the parabolic surface of the liner is concave towards the top plate of the shell. The embodiment of the utility model is applied to the scene of rock blasting.
Description
Technical Field
The utility model relates to the technical field of rock blasting, in particular to a blasting device with a linear cutting shaped charge structure.
Background
In mining processes, it is often necessary to break up large pieces of rock by blasting means. The energy gathering blasting is a blasting mode commonly used at present, compared with the perforated blasting mode, the energy gathering blasting mode is adopted, and shock waves generated during blasting have better directivity and higher safety.
When the energy-gathering blasting mode is adopted, the conventional liner is a groove with a triangular cross section formed by bending upwards, and if the liner is adopted, the technical problems of small maximum head jet speed, small jet length and poor stone breaking effect exist when blasting are solved.
Disclosure of Invention
Therefore, the embodiment of the utility model provides a blasting device with a linear cutting shaped charge structure, which can improve the stone breaking effect.
The embodiment of the utility model provides a blasting device with a linear cutting shaped charge structure, which comprises a shell and a liner; the shell comprises a top plate and a side plate, wherein the side plate is connected with the top plate and encloses a charging structure with an energy collecting port at one end together with the top plate, and the energy collecting port is used for carrying out directional linear convergence on kinetic energy generated after the explosion of explosive contained in the charging structure; the top plate is provided with a detonator placement opening; the shaped charge liner is arranged at the energy collecting opening of the shell and forms a closed cavity with the shell for mounting explosive; the height of the closed cavity is larger than that of the detonating primer to be placed; the liner is a parabolic metal liner, the outer side of the periphery of the liner is fixedly connected with the inner side of the energy gathering port, and the parabolic surface of the liner is concave towards the top plate of the shell.
Optionally, the energy collecting opening is a long opening, the paraboloid of the shaped charge liner is a long paraboloid which is matched with the long opening, so that kinetic energy generated after the explosive contained in the charging structure explodes is linearly collected, and the shaped charge liner is impacted to form a metal flow for linearly cutting the rock mass; wherein the cross section of the long paraboloid is parabolic.
Optionally, the side plate is contracted from the connection position with the top plate towards the direction of the energy collecting port to form the energy collecting port.
Optionally, the thickness of the paraboloid of the liner is one millimeter, the ratio of the height of the side plate to the width of the energy collecting port is 2, and the focal length is 0.4.
Optionally, a plurality of concave parts are symmetrically arranged on the paraboloid of the shaped charge liner relative to the central plane of the paraboloid, and each concave part is concave towards the inner part of the closed cavity.
Optionally, the blasting device further comprises a primer detonator and a blasting height device; the detonating primer is vertically arranged in the closed cavity, the bottom end of the detonating primer corresponds to the top end of the paraboloid of the liner, and the central axis of the detonating primer coincides with the central axis of the paraboloid of the liner; the explosive height device is arranged on the rock to be blasted, the shell is supported on the explosive height device, and the parabolic surface of the shaped charge liner faces towards the explosive height device.
The embodiment of the utility model provides a blasting device with a linear cutting shaped charge structure, which comprises a shell and a liner; the shell comprises a top plate and a side plate, wherein the side plate is connected with the top plate and encloses a charging structure with an energy collecting port at one end together with the top plate, and the energy collecting port is used for carrying out directional linear convergence on kinetic energy generated after the explosion of explosive contained in the charging structure; the shaped charge liner is arranged at the energy collecting opening of the shell and forms a closed cavity with the shell for mounting explosive; the liner is a parabolic metal liner, the outer side of the periphery of the liner is fixedly connected with the inner side of the energy collecting port, and the parabolic surface of the liner is concave towards the top plate of the shell; wherein, the material of shaped charge liner is red copper. In this way, compared with the liner in the prior art, the bus length of the liner in the embodiment of the utility model is longer, so that when the explosive in the closed cavity explodes and the liner made of red copper is broken into fragments, the maximum head jet velocity of the metal flow can be improved, and meanwhile, the volume of the pestle body (namely, the liner without the metal flow formed) can be reduced, so that the jet length can be improved, and the lithotripsy effect can be further improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a blasting apparatus having a linear cutting shaped charge configuration according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a slug and jet length using a conventional liner and an embodiment of the present utility model;
FIG. 3 is a simulated graph of an explosion performed when using a liner in an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of another embodiment of a blasting apparatus with a linear cutting shaped charge configuration;
FIG. 5 is a schematic perspective view of a blasting apparatus with a linear cutting shaped charge configuration according to embodiments of the present utility model;
fig. 6 is a schematic diagram of a manufacturing method of a blast apparatus according to an embodiment of the present utility model.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model provides a blasting device with a linear cutting shaped charge structure, and referring to fig. 1, the blasting device provided by the embodiment of the utility model can comprise a shell 1 and a liner 2; the shell 1 comprises a top plate and side plates, wherein the side plates are connected with the top plate and enclose a charging structure with an energy collecting port at one end together with the top plate, and the energy collecting port is used for carrying out directional linear convergence on kinetic energy generated after the explosion of explosive contained in the charging structure; the top plate is provided with a detonator placement opening; the liner 2 is arranged at the energy collecting port of the shell 1 and forms a closed cavity for mounting explosive with the shell 1; the height of the closed cavity is larger than that of the detonating primer to be placed; the liner 2 is a parabolic metal liner, the outer side of the periphery of the liner 2 is fixedly connected with the inner side of the energy gathering port, and the parabolic surface of the liner 2 is concave towards the top plate of the shell 1. Wherein, the liner 2 can be made of red copper.
In an embodiment of the present utility model, the blasting apparatus may include a housing 1 and a liner 2, and the housing 1 may include a top plate and a side plate. The side plates are connected with the top plate, and the side plates and the top plate are enclosed together to form a charging structure with an energy collecting port at one end for storing explosive. The energy collecting port is used for carrying out directional linear convergence on kinetic energy generated after the explosive filled in the charging structure explodes to the same direction so as to improve the use efficiency of the kinetic energy and the stone breaking effect.
The liner 2 is fixed at the energy collecting port of the shell 1, and forms a closed cavity with the shell 1 for mounting explosive, and the explosive can be trinitrotoluene. The liner 2 is a parabolic metal liner, the outer side of the periphery of the liner 2 is fixedly connected with the inner side of the energy gathering port, and the parabolic surface of the liner 2 is concave towards the top plate of the shell 1. Because the liner 2 is parabolic in shape and longer in bus length than the liner 2 commonly used at present, when the liner 2 made of red copper is exploded into fragments by explosive explosion in a closed cavity, the maximum head jet speed of the metal flow can be increased, and meanwhile, the volume of a pestle body (namely the liner 2 without the metal flow) can be reduced, as shown in fig. 2, wherein the upper diagram is a schematic diagram of the pestle body and the jet length when the conventional liner is adopted, and the lower diagram is a schematic diagram of the pestle body and the jet length when the liner is adopted, so that the jet length can be increased, and the lithotriptic effect can be further improved.
Optionally, in one embodiment of the present utility model, the energy collecting opening is an elongated opening, and the paraboloid of the liner 2 is an elongated paraboloid corresponding to the elongated opening, so that kinetic energy generated after the explosive contained in the charging structure explodes is linearly collected, and impacts the liner 2 to form a metal flow for linearly cutting a rock mass; wherein the cross section of the long paraboloid is parabolic.
In the embodiment of the present utility model, as shown in fig. 1, the energy collecting opening is a long opening, specifically may be a rectangle with a smaller width, and the width of the long opening may be designed according to actual needs. The shape of the liner 2 below the parabola is adapted to the elongated opening. In this way, kinetic energy generated after the explosive contained in the explosive charging structure explodes is linearly converged through the long opening, and strong impact force is generated on the liner 2, so that the liner 2 is broken into fragments, and the high-speed moving fragment metal flows can form linear cutting action on the rock mass, so that the lithotriptic effect is realized.
Optionally, in an embodiment of the present utility model, the side plate is contracted from a connection position with the top plate toward the direction of the energy collecting port to form the energy collecting port.
In the embodiment of the utility model, the side plate is connected with the top plate, and the side plate is contracted from the connection position towards the direction of the energy collecting port, so that the energy collecting port is formed. By adopting the energy collecting port formed in the mode, the kinetic energy generated by the explosive during explosion is concentrated at the energy collecting port with smaller area, so that the maximum head jet velocity of the metal flow can be increased, and the stone breaking effect can be further improved.
Alternatively, in one embodiment of the present utility model, the thickness of the parabola of the liner 2 is one millimeter, the ratio of the height of the side plate to the width of the energy collecting port is 2, and the focal length is 0.4.
In the embodiment of the present utility model, by analyzing the simulation result of the explosion effect, the inventor found that the optimum thickness value of the paraboloid of the liner 2 is 1 mm, and when the optimum thickness value is adopted, the maximum head jet velocity of the metal flow can be increased. Similarly, the height of the side plate may be 2 times the width of the energy harvesting port, and in one example, the height of the side plate may be 80mm and the width of the energy harvesting port 40mm. When this optimal length value is adopted, the maximum head jet velocity of the metal flow can be increased. The optimum value of the focal length may be 0.4, which when taken may increase the maximum head jet velocity of the metal flow. In one example, the above three optimum values may be used simultaneously, so that the maximum head jet velocity of the metal flow may be maximized, and thus the lithotripsy effect may be maximized. As shown in fig. 3, is a simulation of an explosion in this case.
Optionally, in one embodiment of the present utility model, a plurality of concave portions are symmetrically disposed on the paraboloid of the liner 2 with respect to the central plane of the paraboloid, and each concave portion is concave toward the inside of the closed cavity.
In the embodiment of the present utility model, a plurality of concave portions may be symmetrically arranged with respect to a central plane of the paraboloid, each concave portion is concave toward the inside of the closed cavity, and the radian of the concave portion is not particularly limited in the embodiment of the present utility model. By adopting the structure, the explosion effect can be further enhanced, specifically, the maximum head jet velocity of the metal flow and the length of the metal flow can be increased, and then the stone breaking effect can be enhanced.
Optionally, in one embodiment of the utility model, the blasting device further comprises a primer cap and a blast-up device 3; the detonating primer is vertically arranged in the closed cavity, the bottom end of the detonating primer corresponds to the top end of the paraboloid of the liner 2, and the central axis of the detonating primer coincides with the central axis of the paraboloid of the liner 2; the explosive height device 3 is arranged on the rock to be blasted, the shell 1 is supported on the explosive height device 3, and the paraboloid of the liner 2 faces towards the explosive height device 3.
In the embodiment of the present utility model, as shown in fig. 4 and 5, the blasting device may further include a primer detonator and a blast height device 3; the detonating primer can be vertically arranged in the closed cavity, the upper half part of the detonating primer is positioned on the upper part of the top plate, the lower half part of the detonating primer is positioned on the lower part of the top plate, namely, the lower half part of the detonating primer is positioned in the closed cavity and is contacted with the explosive in the cavity, so that the detonating primer can detonate the explosive when in explosion. The bottom end of the detonating primer corresponds to the top end of the paraboloid of the liner 2, and the central axis of the detonating primer can be coincident with the central axis of the paraboloid of the liner 2, namely, the central axes of the detonating primer and the liner 2 are on the same straight line. The explosive device 3 may be placed on the rock to be blasted, in particular on a plane of the rock to be blasted, the housing 1 may be supported on the explosive device 3, and the liner 2 parabola is directed towards said explosive device 3. By adopting the arrangement mode, the explosion effect can be enhanced, and specifically, the maximum head jet velocity of the metal flow and the length of the metal flow can be increased, so that the stone breaking effect can be enhanced.
In one example, as shown in fig. 6, the explosive height device 3 may be manufactured by cutting a rectangle with a length equal to three by using a hard paper box, and then connecting the rectangle with an adhesive tape at the head and the tail, wherein the section is in the shape of an equilateral triangle. A typical height of the frying device is 40mm.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the embodiment of the utility model, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (6)
1. A blasting device with a linear cutting shaped charge structure is characterized by comprising a shell and a liner;
the shell comprises a top plate and a side plate, wherein the side plate is connected with the top plate and encloses a charging structure with an energy collecting port at one end together with the top plate, and the energy collecting port is used for carrying out directional linear convergence on kinetic energy generated after the explosion of explosive contained in the charging structure; the top plate is provided with a detonator placement opening;
the shaped charge liner is arranged at the energy collecting opening of the shell and forms a closed cavity with the shell for mounting explosive; the height of the closed cavity is larger than that of the detonating primer to be placed;
the liner is a parabolic metal liner, the outer side of the periphery of the liner is fixedly connected with the inner side of the energy collecting port, and the parabolic surface of the liner is concave towards the top plate of the shell.
2. A blasting apparatus according to claim 1, wherein,
the energy collecting opening is a long opening, the paraboloid of the shaped charge liner is a long paraboloid which is matched with the long opening, so that kinetic energy generated after the explosive contained in the explosive charging structure explodes is linearly collected, and the shaped charge liner is impacted to form a metal flow for linearly cutting a rock mass; wherein the cross section of the long paraboloid is parabolic.
3. A blasting apparatus according to claim 1, wherein the side plate is contracted from a position of connection with the top plate in a direction toward the energy accumulating port to form the energy accumulating port.
4. A blasting apparatus according to claim 1, wherein the liner has a parabolic surface of one mm, the ratio of the height of the side plate to the width of the collector port is 2, and the focal length is 0.4.
5. A blasting apparatus according to claim 2, wherein a plurality of recesses are symmetrically arranged on the paraboloid of the liner with respect to the central plane of the paraboloid, each recess being recessed toward the interior of the closed cavity.
6. A blasting apparatus according to claim 1, wherein the blasting apparatus further comprises a primer cap and a blast-up device;
the detonating primer is vertically arranged in the closed cavity, the bottom end of the detonating primer corresponds to the top end of the paraboloid of the liner, and the central axis of the detonating primer coincides with the central axis of the paraboloid of the liner;
the explosive height device is arranged on the rock to be blasted, the shell is supported on the explosive height device, and the parabolic surface of the shaped charge liner faces towards the explosive height device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321134663.3U CN220541871U (en) | 2023-05-12 | 2023-05-12 | Blasting device with linear cutting shaped charge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321134663.3U CN220541871U (en) | 2023-05-12 | 2023-05-12 | Blasting device with linear cutting shaped charge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220541871U true CN220541871U (en) | 2024-02-27 |
Family
ID=89966101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321134663.3U Active CN220541871U (en) | 2023-05-12 | 2023-05-12 | Blasting device with linear cutting shaped charge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220541871U (en) |
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2023
- 2023-05-12 CN CN202321134663.3U patent/CN220541871U/en active Active
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