CN112240730A - Gather ability charge structure of supplementary planet ball mineral sample - Google Patents
Gather ability charge structure of supplementary planet ball mineral sample Download PDFInfo
- Publication number
- CN112240730A CN112240730A CN202011034148.9A CN202011034148A CN112240730A CN 112240730 A CN112240730 A CN 112240730A CN 202011034148 A CN202011034148 A CN 202011034148A CN 112240730 A CN112240730 A CN 112240730A
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- CN
- China
- Prior art keywords
- annular
- shaped charge
- shell
- explosive column
- sampling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
Abstract
The invention discloses an energy-gathering charge structure for assisting external planet mineral sampling, which comprises: the device comprises an initiation mechanism, a shell, an explosive column, an annular shaped charge cover, a flying piece and a buffer body; the shell is a stepped shaft-shaped circular tube, two ends of the shell are respectively provided with an opening, the explosive column is coaxially filled in an inner cavity at the large end of the shell, one end of the explosive column is abutted against the inner bottom surface of the shell, the other end of the explosive column is in press fit with the end part of the shell through an annular shaped charge cover, and the convex surface of the annular shaped charge cover is pressed on the end part of the explosive column; a flying piece is arranged between the central end surface of the annular shaped charge liner and the explosive column, and a buffer body is arranged between the flying piece and the explosive column; the inner part of the small end of the shell is provided with an initiation mechanism for initiating explosive columns; wherein, annular shaped charge liner includes: annular groove and integrated connection are at the circular terminal surface at annular groove center, and annular groove's cross section is crescent, and its one end that links to each other with circular terminal surface is inboard, and the one end that links to each other with the casing is the outside, makes the inboard wall thickness of annular groove be greater than the wall thickness in the outside.
Description
Technical Field
The invention relates to the technical field of engineering blasting and extraterrestrial mineral sampling, in particular to an energy-gathering charge structure for assisting extraterrestrial mineral sampling, and specifically relates to an energy-gathering charge structure for crushing firm minerals and collecting effective small samples by utilizing explosive column explosion, energy gathering and crushing effects on an extraterrestrial sphere.
Background
Generally, sampling minerals on the earth surface means that a certain amount of mineral samples are collected from ore bodies, mines and the like according to certain specifications or weight requirements, and mineralogy, mineralogy and petrology researches are carried out on the ores and the rocks through analysis, test and identification so as to find out the mineral components and contents, symbiotic combination, structural structure, mineral grade and embedding characteristics, mineral chemical components and secondary changes and the like of the ores and surrounding rocks, so that the method has very important significance for finding out the quality of the ores, configuring an ore processing technology, knowing mining conditions of ore deposits and the like.
And sampling and researching the extraterrestrial surface minerals have important significance for exploring the extraterrestrial surface basic ore environment and knowing the historical evolution of the extraterrestrial mineral environment and the future mineral mining work. Generally, many methods for sampling minerals on the earth surface include a notching method, a block picking method, a line marking method, a grid method, a drilling method, a full roadway method, a stripping method, a drilling method and the like. However, in the vacuum oxygen-free and low-gravity extraterrestrial special environment, the mechanical power and load of the detection by people or no people are limited, the operation and the action are greatly limited, and the effective sampling operation on hard massive minerals like the surface is difficult to flexibly carry out.
On the earth surface, various high-power mechanical equipment can be conveniently and flexibly adopted, mineral sampling work is carried out in a less explosive mode, but in special vacuum oxygen-free and low-gravity environments such as the outer planet surface and the like, the collection and sampling work is carried out after large mineral blocks are crushed by small oxygen-carrying explosive columns, so that an effective way is provided.
Blasting operation refers to operation for applying work to a medium by using the explosion energy of explosives to achieve a preset engineering target, becomes a very common means in mineral mining, is widely applied to mining operations of coal mines, stones and the like, and forms a whole set of complete technical standards of blasting mining series such as early-stage investigation, construction schemes, operation flows, safety specifications and the like through years of research and engineering practice.
However, the blasting mining technology used on the earth surface is directly applied to the mineral sampling work on the surface of the outer celestial sphere, so that the original mineral can be thoroughly crushed, the fragments are not beneficial to collecting and sampling after being dispersed all around, the great potential safety hazard can be caused to personnel and instruments moving on the surface of the outer celestial sphere, the environment of the outer celestial sphere in a larger range can be possibly thoroughly changed, and the follow-up scientific research is not beneficial. Therefore, a small explosive column structure for assisting the sampling work of extraterrestrial mineral needs to be designed, which can locally crush mineral, leave a large amount of pollution-free effective mineral small samples in the original position, realize the in-situ sampling, have small influence on the surrounding environment and eliminate the potential safety hazard to personnel and instruments.
The shaped charge structure is a charge structure with a shaped charge cover lined on the inner surface of a charge groove, and is also called shaped charge, the shaped charge transmits the explosive energy near the groove after charge explosion to the shaped charge cover, and the explosive energy is converged to an axis to form shaped energy-collecting metal jet with extremely strong local penetration and destruction power. The explosion device taking the energy-gathered charging structure as the core can form deeper perforation and certain damage to firm minerals, rock strata and the like without depending on the kinetic energy or the speed of the device under the condition of smaller charging amount, has no overhigh requirement on the launching and detonating environments, has wide application range and flexible application mode, and has been widely applied to engineering operation, including perforating on the soil layer and the rock during exploration and cutting a ship body during salvage of a sunken ship; cutting steel plates and steel beams in the field; the shaped charge is widely applied to oil and natural gas exploitation. The common axial energy-gathering charging structure can deal with the broken open pores of firm minerals by utilizing the energy gathering efficiency under the condition of small dosage, has small influence on the surrounding environment and potential safety hazard, but can cause the scattering of the mineral fragments to the periphery at the same time, is not beneficial to the subsequent collection and sampling work, and therefore the special energy-gathering charging structure is required to be redesigned to assist the sampling work of the minerals on the surface of the outer celestial sphere.
Disclosure of Invention
In view of the above, the invention provides an energy-gathered charging structure for assisting in sampling of external planet minerals, which can utilize less explosive explosion to drive to form annular jet flow to invade hard minerals in a low-gravity and vacuum oxygen-free environment, and simultaneously drives a flying piece to break large minerals so as to facilitate sampling.
The technical scheme of the invention is as follows: a shaped charge configuration to assist in the sampling of alien ball minerals, comprising: the device comprises an initiation mechanism, a shell, an explosive column, an annular shaped charge cover, a flying piece and a buffer body;
the shell is a stepped shaft-shaped circular tube, two ends of the shell are respectively provided with an opening, the explosive column is coaxially filled in an inner cavity at the large end of the shell, one end of the explosive column is abutted against the inner bottom surface of the shell, the other end of the explosive column is in tight fit with the end part of the shell through an annular shaped charge cover, and the convex surface of the annular shaped charge cover is tightly pressed on the end part of the explosive column; a flying piece is arranged between the central end surface of the annular shaped charge liner and the explosive column, and a buffer body is arranged between the flying piece and the explosive column and is used for buffering the flying piece; the inner part of the small end of the shell is provided with an initiation mechanism for initiating explosive columns; wherein the annular liner comprises: annular groove and integrated connection are at the circular terminal surface at annular groove center, and annular groove's cross section is crescent, and its one end that links to each other with circular terminal surface is inboard, and the one end that links to each other with the casing is the outside, makes the inboard wall thickness of annular groove be greater than the wall thickness in the outside.
Preferably, the flying disc and the buffer body are both circular sheet structures which are coaxial with the annular liner, the explosive column and the shell.
Preferably, the flyer and the buffer body have equal diameters, and the axial heights are set values respectively.
Preferably, the explosive column is filled with high-energy explosive.
Preferably, the material of the shell is a high-molecular non-metallic material.
Preferably, the annular liner is made of high-density plastic metal material.
Preferably, the buffer body is made of inert materials.
Preferably, the material of the flyer is a high-density metal material.
Has the advantages that:
the energy-gathering charge structure designed by the invention has lighter weight and small load when used for carrying a rocket; the structure is simple, the processing manufacturability is better, and the cost is low; the additional damage is small, and the safety is good; the annular shaped charge liner is adopted, and detonation waves generated after explosive columns explode are utilized to drive the annular shaped charge liner to crush and deform, so that annular jet flow with a strong cutting effect is generated, hard large minerals are subjected to annular cutting, deeper annular pits are left, and original minerals are left in the annular pits; the detonation wave is used for driving the flying piece, the kinetic energy of the trailing annular jet flow impacts and crushes the original minerals retained in the annular pit, and small minerals further crushed under the action of the flying piece are retained in the annular pit and cannot fly away due to the blocking effect of the pit wall of the annular pit so as to facilitate subsequent collection and sampling, achieve the purpose of better assisting the adoption of the minerals on the surface of the outer planet ball in work, and assist in finishing the work of sampling hard minerals in a special vacuum oxygen-free low-gravity environment, which cannot be finished in the past; meanwhile, the emitting energy charging structure can finish one-time sampling work, and is simple and efficient.
Drawings
Figure 1 is a schematic of the structure of a shaped charge configuration of the present invention.
Fig. 2 is a schematic structural diagram of the housing of the present invention.
FIG. 3 is a schematic structural view of the annular liner of the present invention.
FIG. 4 is a schematic diagram of a flying sheet structure with a buffer according to the present invention.
FIG. 5 is a schematic view of the structure of the explosive column of the present invention.
Fig. 6 is a schematic diagram of the annular jet and the flyer formed by the explosive drive of the shaped charge structure of the present invention.
FIG. 7 is a schematic diagram of a sampling target in the present invention.
FIG. 8 is a schematic view of the annular shaped dimple formed by the annular jet penetrating the sample object in accordance with the present invention.
Fig. 9 is a schematic diagram of the annular pit and the funnel pit after the annular jet flow and the flying piece sequentially penetrate through the sampling target and the small sample is retained in the funnel pit.
The explosive device comprises an initiating mechanism 1, a shell 2, an explosive column 3, an annular liner 4, a flying piece 5 and a buffer body 6.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides an energy-gathering charge structure assisting in sampling of outer planet minerals, which can utilize less explosive explosion to drive to form annular jet flow to invade hard minerals in a low-gravity and vacuum oxygen-free environment, and meanwhile, drives a flyer to break large minerals so as to facilitate sampling.
As shown in fig. 1, the shaped charge structure comprises: the explosive device comprises an initiating mechanism 1, a shell 2, an explosive column 3, an annular liner 4, a flying piece 5 and a buffer body 6.
The connection relation of the energy-gathering charge structure is as follows: as shown in fig. 2, the casing 2 is a stepped shaft-shaped circular tube, two ends of the stepped shaft-shaped circular tube are respectively opened, the explosive column 3 is coaxially filled in an inner cavity at the large end of the casing 2, one end of the explosive column 3 is abutted against the inner bottom surface of the casing 2, the other end of the explosive column is in press fit with the end part of the casing 2 through the annular liner 4, and the convex surface of the annular liner 4 is pressed on the end part of the explosive column 3; a flying piece 5 is coaxially arranged between the central end surface of the annular shaped charge liner 4 and the explosive column 3 (namely the flying piece 5 is arranged at the bottom end of the annular shaped charge liner 4, the flying piece 5 is in a circular sheet structure and is coaxial with the annular shaped charge liner 4, the explosive column 3 and the shell 2), and a buffer body 6 (in a circular sheet structure) is arranged between the flying piece 5 and the explosive column 3 and is used for adjusting the speed of driving the flying piece 5 and buffering the flying piece 5; the inner part of the small end of the shell 2 is provided with an initiation mechanism 1 for initiating an explosive column 3; as shown in fig. 3, the annular liner 4 includes: annular groove and integrated connection are at the circular terminal surface at annular groove center, and annular groove's cross section is crescent, and its one end that links to each other with circular terminal surface is annular groove's inboard, and the one end that links to each other with casing 2 is annular groove's the outside, makes the inboard wall thickness of annular groove be greater than the wall thickness in the outside for guarantee that the detonation wave is roughly equal to the effort of annular shaped charge cover 4.
Further, as shown in fig. 4, the buffer 6 and the flying disc 5 have the same diameter, and the axial heights thereof are set to ensure a set amount of attenuation of the detonation wave acting on the flying disc 5.
Further, as shown in fig. 5, the explosive column 3 is injection-molded by a well-established and reliable injection-molding process, and the material thereof is TNT explosive (which is high-energy injection-molded explosive).
Further, the material of the housing 2 is a high molecular polyethylene plastic (which is a high molecular non-metallic material) with less damage to the surrounding, thereby reducing the damage.
Further, the annular liner 4 is made of red copper material (which is a high-density plastic metal material) with high sound velocity and good plasticity.
Further, the buffer body 6 is made of an inert polymer material (which is an inert material), which helps to delay the detonation pressure of the explosive column 3 acting on the flying disc 5.
Further, the flying plate 5 is made of a common Q235 steel (which is a high-density metal material).
The working principle of the energy-gathering charge structure is as follows: generally, the particle size and the component content of a mineral sample need to be measured, the size of a sampling target (as shown in fig. 7, the sampling target is a large hard mineral) is not strictly required, and the load is mainly considered to be as small as possible and low with damage when a rocket is carried under a set caliber of a shaped charge structure;
after the energy-gathered charge structure is safely detonated at a certain explosive height away from a sampling target, the explosive column 3 starts to explode, the shell 2 expands and breaks, detonation waves firstly act on the annular shaped charge cover 4, as shown in fig. 6, the annular shaped charge cover 4 is driven to collapse and deform by the detonation waves to form annular jet flow, the annular jet flow firstly carries out annular cutting on the sampling target to form an annular pit (as shown in fig. 8) with set depth, and larger original minerals are left in the center of the pit; meanwhile, the detonation waves sequentially act on the buffer body 6 and the flying plate 5, as shown in fig. 9, the detonation waves attenuated by the buffer body 6 drive the flying plate 5 to follow the annular jet flow (as the buffer body 6 reduces the acting force of the detonation waves on the flying plate 5, the flying plate 5 only generates small plastic deformation and follows the annular jet flow at a lower speed), and the raw mineral retained in the center of the annular pit is impacted along the axial direction, so that the raw mineral is crushed, the crushed mineral is scattered to the periphery of the annular pit, but is finally retained in the annular pit due to the blocking of the pit wall of the annular pit, and an effective funnel for small mineral samples is formed, and the subsequent collection and sampling can be realized only by picking up small mineral samples in the funnel pit by using an instrument.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. 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 (8)
1. An energy-gathering charge structure for assisting in sampling extraterrestrial minerals, comprising: the explosive device comprises an initiation mechanism (1), a shell (2), an explosive column (3), an annular shaped charge cover (4), a flying piece (5) and a buffer body (6);
the shell (2) is a stepped shaft-shaped circular tube, two ends of the circular tube are respectively provided with an opening, the explosive column (3) is coaxially filled in an inner cavity at the large end of the shell (2), one end of the explosive column (3) is abutted against the inner bottom surface of the shell (2), the other end of the explosive column is in compression fit with the end part of the shell (2) through the annular shaped charge cover (4), and the convex surface of the annular shaped charge cover (4) is compressed on the end part of the explosive column (3); a flying piece (5) is arranged between the central end surface of the annular shaped charge cover (4) and the explosive column (3), and a buffer body (6) is arranged between the flying piece (5) and the explosive column (3) and is used for buffering the flying piece (5); an initiation mechanism (1) is arranged in the small end of the shell (2) and is used for initiating the explosive column (3); wherein the annular liner (4) comprises: annular groove and integrated connection are at the circular terminal surface at annular groove center, and annular groove's cross section is crescent, and its one end that links to each other with circular terminal surface is the inboard, and the one end that links to each other with casing (2) is the outside, makes the inboard wall thickness of annular groove be greater than the wall thickness in the outside.
2. The shaped charge configuration for assisting in the sampling of extraterrestrial mineral according to claim 1, wherein the flyer (5) and the buffer body (6) are each a circular sheet-like structure coaxial with the annular liner (4), the column (3) and the housing (2).
3. The shaped charge configuration for assisting in the sampling of extraterrestrial mineral according to claim 2, wherein the flyer (5) and the damper (6) are of equal diameter and have respective axial heights of a set value.
4. The shaped charge configuration to assist in external celestial mineral sampling of claim 1, wherein said column (3) is charged with high energy explosive.
5. The shaped charge structure for assisting in the sampling of extraterrestrial mineral according to claim 1, wherein the material of the casing (2) is a polymeric non-metallic material.
6. The shaped charge configuration for aiding the sampling of extraterrestrial mineral according to claim 1, wherein the annular liner (4) is made of a high density plastic metal material.
7. The shaped charge configuration for assisting in the sampling of extraterrestrial mineral according to claim 1, wherein the buffer body (6) is made of an inert material.
8. The shaped charge configuration for assisting in the sampling of extraterrestrial mineral according to claim 1, wherein the flyer (5) is made of a high-density metal material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011034148.9A CN112240730B (en) | 2020-09-27 | 2020-09-27 | Gather ability charge structure of supplementary planet ball mineral sample |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011034148.9A CN112240730B (en) | 2020-09-27 | 2020-09-27 | Gather ability charge structure of supplementary planet ball mineral sample |
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| CN112240730A true CN112240730A (en) | 2021-01-19 |
| CN112240730B CN112240730B (en) | 2021-07-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124711A (en) * | 2021-03-12 | 2021-07-16 | 大连理工大学 | Multifunctional composite annular energy-gathering charge structure design |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948181A (en) * | 1973-05-14 | 1976-04-06 | Chamberlain Manufacturing Corporation | Shaped charge |
| US5333550A (en) * | 1993-07-06 | 1994-08-02 | Teledyne Mccormick Selph | Tin alloy sheath material for explosive-pyrotechnic linear products |
| US5633475A (en) * | 1996-03-08 | 1997-05-27 | Western Atlas International, Inc. | Circulation shaped charge |
| US6505559B1 (en) * | 2000-09-14 | 2003-01-14 | Owen Oil Tools, Inc. | Well bore cutting and perforating devices and methods of manufacture |
| CN203908426U (en) * | 2014-05-26 | 2014-10-29 | 葛洲坝易普力股份有限公司 | Circular jet cutter |
| CN107289829A (en) * | 2017-08-25 | 2017-10-24 | 辽宁工程技术大学 | A kind of ring plane jet jet cutter and its application method |
| CN108627058A (en) * | 2018-04-02 | 2018-10-09 | 南京君缘科爆工程技术有限公司 | A kind of COMBUSTION TO DETONATION TRANSITION condensed-energy explosion equipment |
| CN108731550A (en) * | 2018-05-30 | 2018-11-02 | 中北大学 | A kind of super cumulative linear cutter |
-
2020
- 2020-09-27 CN CN202011034148.9A patent/CN112240730B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948181A (en) * | 1973-05-14 | 1976-04-06 | Chamberlain Manufacturing Corporation | Shaped charge |
| US5333550A (en) * | 1993-07-06 | 1994-08-02 | Teledyne Mccormick Selph | Tin alloy sheath material for explosive-pyrotechnic linear products |
| US5633475A (en) * | 1996-03-08 | 1997-05-27 | Western Atlas International, Inc. | Circulation shaped charge |
| US6505559B1 (en) * | 2000-09-14 | 2003-01-14 | Owen Oil Tools, Inc. | Well bore cutting and perforating devices and methods of manufacture |
| CN203908426U (en) * | 2014-05-26 | 2014-10-29 | 葛洲坝易普力股份有限公司 | Circular jet cutter |
| CN107289829A (en) * | 2017-08-25 | 2017-10-24 | 辽宁工程技术大学 | A kind of ring plane jet jet cutter and its application method |
| CN108627058A (en) * | 2018-04-02 | 2018-10-09 | 南京君缘科爆工程技术有限公司 | A kind of COMBUSTION TO DETONATION TRANSITION condensed-energy explosion equipment |
| CN108731550A (en) * | 2018-05-30 | 2018-11-02 | 中北大学 | A kind of super cumulative linear cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124711A (en) * | 2021-03-12 | 2021-07-16 | 大连理工大学 | Multifunctional composite annular energy-gathering charge structure design |
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