CN215296034U - Blasting initiating explosive device - Google Patents
Blasting initiating explosive device Download PDFInfo
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- CN215296034U CN215296034U CN202121233415.5U CN202121233415U CN215296034U CN 215296034 U CN215296034 U CN 215296034U CN 202121233415 U CN202121233415 U CN 202121233415U CN 215296034 U CN215296034 U CN 215296034U
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Abstract
The utility model discloses an initiating explosive device that blasting was used, include: an initiating explosive device for blasting, comprising: the detonator comprises a shell, an explosive element, a detonating cord, a detonator and a lead wire, wherein the explosive element is arranged in the shell and is in clearance fit with the shell; the explosive element laying direction is the same as the axial direction of the shell. The utility model discloses an initiating explosive device that blasting was used combines explosive spare and detonating cord, can guarantee that the diameter of explosive spare is enough little, can guarantee again to have sufficient initiation ability. The method is applied to blast holes with problems of residual holes, slag falling holes, dislocation holes and the like, and is also suitable for being used in underground upward holes. Above-mentioned initiating explosive device can be quick is sent into the hole bottom, guarantees powder charge efficiency, realizes the hole bottom detonation, and the detonation energy and the detonation velocity of increase initiating explosive improve the blasting effect simultaneously, reduce rock blasting explosive unit consumption.
Description
Technical Field
The utility model relates to a blasting technical field especially relates to an initiating explosive device that blasting was used.
Background
The mixed explosive is a detonator-free sensitive explosive, the initiating mode is that a detonator detonators detonate the initiating explosive, the initiating explosive detonates the mixed explosive on the spot, and the performance of the initiating explosive directly influences the detonation performance of the mixed explosive. At present, the initiating explosive generally adopts industrial explosives with detonator sensitivity, such as emulsion explosive, powdery emulsion explosive, expanded ammonium nitrate explosive and the like, and an initiating tool. The emulsion explosive, the powdery emulsion explosive and the expanded ammonium nitrate explosive are relatively cheap, but have low detonation velocity and low detonation capacity, and in order to ensure enough detonation energy, the detonation explosive quantity needs to be increased, generally at least 1 kg, and the diameter of the cartridge is large. The detonating primer has high detonation velocity, strong detonating capability but high price, and the detonating primer belongs to a small variety of civil explosives and needs to be ordered in advance. The hole is gone up in the pit, and the aperture is generally less than 80mm, because blasting vibration destruction, the dislocation of geology rock stratum, the drilling quality reason such as inconsistent exist the dislocation, fall the quality that the hole was blocked up to the sediment and seriously influence the big gun hole, lead to conventional initiating explosive cartridge bag can't send to the hole bottom, can't realize the hole bottom detonating, directly cause the blasting to push away row, the bulk rate is high, the blasting square measure is little to cause blasting trouble.
The diameter that current initiating explosive generally adopts 2 ~ 3 roots is binded as an organic wholely for 32mm cartridge, or directly regard as initiating explosive with the cartridge of diameter 50 ~ 60mm, these two kinds of forms all have the cartridge diameter big, run into blasting vibration destruction, geological rock stratum dislocation, downthehole have the sediment that falls, the drilling quality is poor etc. the condition leads to the initiating explosive cartridge can't send to the hole bottom, can't realize the hole bottom detonating, directly cause the blasting to push away row, the bold rate is high, the blasting square measure is little, directly cause the blasting trouble.
SUMMERY OF THE UTILITY MODEL
The utility model provides an initiating explosive device that blasting was used to it is big to solve current initiating explosive diameter, runs into blasting vibration destruction, geological rock stratum dislocation, downthehole have the sediment that falls, drilling quality is poor etc. the condition, can't send to the hole bottom, can't realize the technical problem of hole bottom detonating.
The utility model adopts the technical scheme as follows:
an initiating explosive device for blasting, comprising: the detonator comprises a shell, an explosive element, a detonating cord, a detonator and a lead wire, wherein the explosive element is arranged in the shell and is in clearance fit with the shell; the explosive element laying direction is the same as the axial direction of the shell.
Further, the explosive piece adopts one of an explosive roll, an explosive bag or an explosive tube with the diameter of 30-60 mm; the explosive piece is matched with the axial length of the shell.
Furthermore, one side of the outer wall surface of the explosive element is tightly attached to the inner wall surface of the shell, and the other side of the outer wall surface of the explosive element and the inner wall surface of the shell around the explosive element form a clearance cavity for accommodating a detonating cord; the arrangement direction of the detonating cord is the same as the axial direction of the shell and the detonating cord is inserted and fixed in the clearance cavity.
Furthermore, the detonating cord is one, and one detonating cord is inserted and fixed in the gap cavity; or the detonating cords are a plurality of detonating cords, and the detonating cords are inserted and fixed in the gap cavity and are sequentially and tightly arranged along the circumferential direction of the outer wall surface of the explosive element.
Furthermore, a fixing piece for fixing and limiting the detonating cord is arranged in the shell; and sealing elements for sealing the detonating cord are arranged at two ends of the detonating cord.
Furthermore, the ratio of the length of the detonating cord to the length of the explosive element is (0.6-1) to 1.
Further, one end of the shell is closed, and the other end of the shell is open; the detonator is arranged close to the closed end of the shell, and the leg wire is led out from the detonator, passes through the outer wall surface of the explosive element, extends to be close to the open end of the shell and is arranged towards the outside of the shell.
Furthermore, a through groove for a leg wire to penetrate through the shell to extend out of the shell is formed in the opening end of the shell; the opening end of the shell is provided with an inward extending flange; the inner wall surface of the shell adopts a rough surface or a concave-convex structural surface.
Furthermore, the sealing end of the shell adopts a cylindrical conical structure with a guiding function; the opening end of the shell is provided with a sealing plug which is matched with the opening and used for sealing the explosive piece and the detonating cord; the substrate of the shell is a thermoplastic plastic layer or a flexible metal material layer.
Furthermore, the closed end of the shell is provided with a perspective window; the shell is also provided with a protective cover for temporarily protecting the overhanging foot line.
The utility model discloses following beneficial effect has:
the utility model discloses an initiating explosive device of blasting usefulness, including casing, explosive spare, detonating cord, detonator and leg wire. Above-mentioned initiating explosive device combines explosive spare and detonating cord, can guarantee that the diameter of explosive spare is enough little, can guarantee again that initiating explosive device has enough initiation ability based on detonating cord. The detonating cord is laid in the clearance between casing and explosive spare for explosive spare and detonating cord closely laminate in the casing and to the effect of explosive spare fastening position, be favorable to the performance of initiating, and the direction of laying of explosive spare in the casing is the same with the axis direction of casing, the detonating cord is laid between the two, the rational utilization space, the overall dimension of effectual reduction initiating explosive device, can be applied to the residual hole, fall the cinder hole, dislocation hole scheduling problem big gun hole, also be applicable to the use of hole to the hole of going up in the pit. Above-mentioned initiating explosive device can be quick is sent into the hole bottom, guarantees powder charge efficiency, realizes the hole bottom detonation, and the detonation energy and the detonation velocity of increase initiating explosive improve the blasting effect simultaneously, reduce rock blasting explosive unit consumption.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic view of a disassembled structure of an initiating explosive device for blasting according to a preferred embodiment of the invention;
fig. 2 is a cross-sectional view of an initiating explosive device for blasting according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view A-A of the preferred embodiment of the present invention; and
fig. 4 is a schematic view of the housing of the preferred embodiment of the present invention.
The reference numbers illustrate:
1. a housing; 2. an explosive member; 3. a detonating cord; 4. a detonator; 5. a foot line.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is a schematic view of a disassembled structure of an initiating explosive device for blasting according to a preferred embodiment of the invention; fig. 2 is a cross-sectional view of an initiating explosive device for blasting according to a preferred embodiment of the present invention; FIG. 3 is a schematic view A-A of the preferred embodiment of the present invention;
fig. 4 is a schematic view of the housing of the preferred embodiment of the present invention.
As shown in fig. 1 and 2, the blasting initiator device of the present embodiment includes: the detonator explosion-proof device comprises a shell 1, an explosive element 2, a detonating cord 3 and a detonator 4, wherein the explosive element 2 is arranged in the shell 1 and is in clearance fit with the shell 1, the detonating cord 3 is arranged between the shell 1 and the explosive element 2 and is used for enhancing the detonation capability of the explosive element 2 and fastening and positioning the explosive element 2, the detonator 4 is arranged in the explosive element 2, and the detonator 4 is led out of the shell 1 and is led out of the shell 5 through a leg wire 5; the explosive element 2 is arranged in the same direction as the axial direction of the shell 1.
The utility model discloses an initiating explosive device of blasting usefulness, including casing 1, explosive 2, detonating cord 3, detonator 4 and leg wire. Above-mentioned initiating explosive device combines explosive part 2 and detonating cord 3, can guarantee that the diameter of explosive part 2 is enough little, can guarantee again that initiating explosive device has enough initiation ability based on detonating cord 3. Detonating cord 3 lays in the clearance between casing 1 and explosive spare 2 for explosive spare 2 and detonating cord 3 are in close fitting and to the effect of explosive spare 2 fastening position in casing 1, be favorable to initiation performance's performance, and the direction of laying of explosive spare 2 in casing 1 is the same with the axis direction of casing 1, detonating cord 3 lays between the two, the rational utilization space, the effectual overall dimension that reduces the initiating explosive device, can be applied to the residual hole, fall the cinder hole, dislocation hole scheduling problem big gun hole, also be applicable to the use of hole to the hole in the pit. Above-mentioned initiating explosive device can be quick is sent into the hole bottom, guarantees powder charge efficiency, realizes the hole bottom detonation, and the detonation energy and the detonation velocity of increase initiating explosive improve the blasting effect simultaneously, reduce rock blasting explosive unit consumption.
In the embodiment, the explosive piece 2 adopts one of an explosive roll, an explosive bag or an explosive tube with the diameter of 30-60 mm; the explosive element 2 is matched with the axial length of the shell 1. Preferably, the explosive member 2 is one of a cartridge, a cartridge or a cartridge having a diameter of 30mm to 35 mm. In this embodiment, the explosive in the explosive device 2 may be emulsion explosive, expanded ammonium nitrate explosive, water gel explosive, or modified ammonium nitrate fuel oil explosive. More preferably, one of a cartridge, a cartridge or a cartridge with a diameter of 32mm is adopted as the explosive element 2, and the 32mm explosive element 2 is a conventional small-diameter industrial explosive, so that the explosive element is convenient to purchase and process and manufacture.
As shown in fig. 2 and 3, in the present embodiment, one side of the outer wall surface of the explosive element 2 is closely attached to the inner wall surface of the housing 1, and the other side of the outer wall surface of the explosive element 2 and the inner wall surface of the housing 1 around the outer wall surface form a gap cavity for accommodating the detonating cord 3; the arrangement direction of the detonating cord 3 is the same as the axial direction of the shell 1 and is inserted and fixed in the clearance cavity. One side of the outer wall surface of the explosive element 2 is tightly attached to the inner wall surface of the shell 1, and is similar to the manner that the explosive element 2 is internally tangent to the shell 1. The other side of the outer wall surface of the explosive element 2 and the inner wall surface of the shell 1 around the explosive element form a clearance cavity for accommodating the detonating cord 3, and the detonating cord 3 is arranged on or near the connecting line of the explosive element 2 and the shell 1. Therefore, the explosive element 2 and the shell 1, the explosive element 2 and the detonating cord 3, and the detonating cord 3 and the shell 1 are tightly attached, so that the explosive element 2 and the detonating cord 3 in the shell 1 have compact structures, and the whole space of the shell 1 is the smallest in unit volume.
As shown in fig. 3, in the present embodiment, one detonating cord 3 is provided, and one detonating cord 3 is inserted and fixed in the gap cavity; or, the detonating cords 3 are multiple, and the detonating cords 3 are inserted and fixed in the gap cavity and are sequentially and tightly arranged along the circumferential direction of the outer wall surface of the explosive element 2. Namely, the single detonating cord 3 is arranged on the line of the center of the explosive element 2 and the shell 1. The detonating cord 3 may be one of low, medium and high energy detonating cords 3. Namely, the first detonating cord 3 is arranged on the line of the center of the explosive element 2 and the shell 1, and the rest detonating cords 3 are sequentially arranged on the two sides of the first detonating cord 3 along the circumferential direction of the outer wall surface of the explosive element 2, so that the empty area ratio is minimum. The number of detonating cords 3 is selected according to the blasting requirement. Above-mentioned many detonating cords 3 closely arrange in proper order along 2 outer wall circumference of explosive component, and the interval of non-equidistance is laid at 2 outer peripheral faces of explosive component, on the one hand, can reduce space area occupied, reduces the size of initiating explosive device, and on the other hand, many detonating cords 3 concentrate and distribute, are favorable to the performance of initiating explosive property, distribute and be unfavorable for the explosive energy performance of detonating cord all around the initiating explosive.
In this embodiment, a fixing member for fixing and limiting the detonating cord 3 is provided in the housing 1. And sealing elements for sealing the detonating cord 3 are arranged at the two ends of the detonating cord 3. A fixing part for fixing and limiting the detonating cord 3 is arranged in the shell 1. Such as straps, electrical tape, etc. The quantity of the explosive pieces 2 and the detonating cords 3 is determined according to the blasting requirement, one or more detonating cords 3 are bound on one side of the explosive pieces 2 through binding bands, electrical tapes and the like, and then the explosive pieces 2 with the detonating cords 3 are installed in the shell 1, and the explosive device is convenient to assemble and easy to prepare. The explosion wire 3 is provided at both ends thereof with sealing members, such as rubber caps, to ensure the explosive performance of the explosion wire 3.
Preferably, the ratio of the length of the detonating cord 3 to the length of the explosive element 2 is (0.6-1): 1. The arrangement directions of the explosive element 2 and the detonating cord 3 are the same as the axial direction of the shell 1, the length ratio of the detonating cord 3 to the explosive element 2 is (0.6-1) to 1, and the specific length of the detonating cord 3 can be determined according to the explosion requirement.
As shown in fig. 1 and 4, in the present embodiment, one end of the housing 1 is closed and the other end is open. The detonator 4 is arranged close to the closed end of the shell 1, and the leg wire 5 is led out from the detonator 4, passes through the outer wall surface of the explosive element 2, extends to be close to the open end of the shell 1 and is arranged towards the outside of the shell 1. Above-mentioned 1 one end of casing is sealed, and the other end opening is convenient for combine explosive spare 2 and detonating cord 3 earlier, assembles the two in casing 1 jointly again, and its easy operation, the processing cost is low, and the processing security is good. The detonator 4 and the leg wire 5 are close to the closed end of the shell 1 and close to the detonating cord 3, so that the detonation speed and the detonation energy are improved, and the blasting effect is improved.
In this embodiment, the open end of the casing 1 is provided with a through groove for the leg wire 5 to penetrate through the casing 1 so as to extend to the outside of the casing 1. The open end of the housing 1 is provided with an inwardly extending flange. The inner wall surface of the housing 1 is a rough surface or a concave-convex structure surface. Above-mentioned casing 1 closes on the open end and is equipped with logical groove, and the foot line 5 of being convenient for wears to establish to casing 1 is equipped with detonator 4 and foot line 5 in explosive spare 2, installs the explosive spare 2 of detonating cord 3 back in casing 1, and foot line 5 wears to establish to casing 1 outside through leading to the groove, seals the open end again. The open end of the housing 1 is provided with an inwardly extending flange for preventing parts of the housing 1, such as the detonating cord 3, the explosive element 2, etc., from falling out. The inner wall surface of the shell 1 adopts a rough surface or a concave-convex structural surface, so that the friction force between the shell and the detonating cord 3 and the explosive element 2 is increased, and the detonating cord 3 and the explosive element 2 are prevented from falling off.
In this embodiment, the sealing end of the housing 1 is a cylindrical cone structure with guiding function. The opening end of the shell 1 is provided with a sealing plug which is matched with the opening and is used for sealing the explosive piece 2 and the detonating cord 3. The base body of the shell 1 is a thermoplastic plastic layer or a flexible metal material layer. The sealing end of the housing 1 is of a cylindrical conical structure, which is helpful for conducting in an auxiliary way during the process of feeding into the duct.
In this embodiment, the closed end of the casing 1 is provided with a transparent window. A protective cover for temporarily protecting the overhanging leg wire 5 is also provided outside the housing 1. The transparent window of the shell 1 is used for observing whether the explosive piece 2 and the detonating cord 3 are assembled in place or not, and whether sliding displacement occurs or not before use, so that the internal condition of the shell 1 can be observed conveniently.
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 (10)
1. An initiating explosive device for blasting, comprising:
a shell body (1) is arranged in the shell body,
an explosive piece (2) which is arranged in the shell (1) and is in clearance fit with the shell (1),
a detonating cord (3) which is arranged between the shell (1) and the explosive piece (2) and is used for enhancing the detonating capability of the explosive piece (2) and fastening and positioning the explosive piece (2),
the detonator (4) is arranged in the explosive element (2), and the detonator (4) is led out of the shell (1) through a leg wire (5);
the arrangement direction of the explosive pieces (2) is the same as the axial direction of the shell (1).
2. An initiating explosive device for blasting according to claim 1,
the explosive piece (2) adopts one of an explosive roll, an explosive package or an explosive tube with the diameter of 30-60 mm;
the explosive piece (2) is matched with the axial length of the shell (1).
3. An initiating explosive device for blasting according to claim 2,
one side of the outer wall surface of the explosive element (2) is tightly attached to the inner wall surface of the shell (1), and the other side of the outer wall surface of the explosive element (2) and the inner wall surface of the shell (1) around the explosive element form a gap cavity for accommodating the detonating cord (3);
the arrangement direction of the detonating cord (3) is the same as the axial direction of the shell (1) and the detonating cord is inserted and fixed in the clearance cavity.
4. An initiating explosive device for blasting according to claim 3,
the explosion-proof cable (3) is one, and one explosion-proof cable (3) is inserted and fixed in the gap cavity; or
The explosive fuse is characterized in that the explosive fuse (3) is provided with a plurality of explosive fuses, and the explosive fuses (3) are spliced and fixed in the gap cavity and are sequentially and tightly arranged along the circumferential direction of the outer wall surface of the explosive element (2).
5. An initiating explosive device for blasting according to claim 3,
a fixing piece for fixing and limiting the detonating cord (3) is arranged in the shell (1);
and sealing elements for sealing the detonating cord (3) are arranged at two ends of the detonating cord (3).
6. An initiating explosive device for blasting according to claim 1,
the length ratio of the detonating cord (3) to the explosive piece (2) is (0.6-1) to 1.
7. An initiating explosive device for blasting according to claim 1,
one end of the shell (1) is closed, and the other end of the shell is open;
the detonator (4) is arranged close to the closed end of the shell (1), and the leg wire (5) is led out from the detonator (4), passes through the outer wall surface of the explosive element (2), extends to be close to the open end of the shell (1) and is arranged towards the outside of the shell (1).
8. An initiating explosive device for blasting according to claim 7,
a through groove for the foot line (5) to penetrate through the shell (1) to extend out of the shell (1) is formed in the opening end of the shell (1);
the opening end of the shell (1) is provided with an inward extending flange;
the inner wall surface of the shell (1) adopts a rough surface or a concave-convex structural surface.
9. An initiating explosive device for blasting according to claim 7,
the sealing end of the shell (1) adopts a cylindrical conical structure with a guiding function;
the opening end of the shell (1) is provided with a sealing plug which is matched with the opening and is used for sealing the explosive piece (2) and the detonating cord (3);
the basal body of the shell (1) is a thermoplastic plastic layer or a flexible metal material layer.
10. An initiating explosive device for blasting according to claim 7,
the closed end of the shell (1) is provided with a perspective window;
the shell (1) is also externally provided with a protective cover for temporarily protecting the overhanging foot line (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121233415.5U CN215296034U (en) | 2021-06-03 | 2021-06-03 | Blasting initiating explosive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121233415.5U CN215296034U (en) | 2021-06-03 | 2021-06-03 | Blasting initiating explosive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215296034U true CN215296034U (en) | 2021-12-24 |
Family
ID=79543833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121233415.5U Active CN215296034U (en) | 2021-06-03 | 2021-06-03 | Blasting initiating explosive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215296034U (en) |
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2021
- 2021-06-03 CN CN202121233415.5U patent/CN215296034U/en active Active
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