Mixed emulsion explosive detonating device for shallow hole blasting

Abstract

The utility model discloses a mixed emulsion explosive initiating device for shallow hole blasting, which comprises an explosive cup filled with initiating explosive. The detonator cylinder extends in the axial direction of the explosive cup, one end of the detonator cylinder is close to the initiating explosive in the explosive cup, and a space for filling a detonator is formed in the detonator cylinder in a hollow mode; a limiting piece is arranged at the end, away from the initiating explosive, of the detonator barrel and makes contact with the detonator to keep the position of the detonator. A lead of the detonator extends out of the upper end of the explosive cup from the lower end of the detonator barrel. According to the detonating device, the detonator is fixed in the detonating device through the limiting piece and is not prone to falling off, the detonating device is in close contact with the mixed emulsion explosive, the mixed emulsion explosive without detonator sensitivity can be detonated reliably, and unexploded explosives are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of rock cracking equipment, and in particular to a mixed emulsion explosive initiating device for shallow hole blasting. Background Art

[0002] For a long time, explosives and detonators used in underground mine tunneling, ore extraction, tunnel excavation, and other construction projects primarily relying on blasting were primarily loaded manually. In recent years, advances in machinery and technology have led to the gradual mechanization of explosive loading, exemplified by the use of charging trucks to mix emulsion explosives. However, mixed emulsion explosives are not detonator-sensitive and typically require detonation equipment such as detonating charges made from pre-assembled explosive rolls.

[0003] The detonating charge made from finished explosives uses a large amount of explosives, is costly, and has low detonation energy or the detonator cannot make firm contact with the charge. These factors often greatly reduce the reliability of the detonating charge in detonating mixed emulsion explosives.

[0004] Therefore, based on the above technical problems, technicians in this field urgently need to develop a more economical and reliable mixed emulsion explosive initiation device and construction method for shallow hole blasting, so as to further reduce construction costs and gain greater market competitive advantages. Summary of the Invention

[0005] The purpose of this application is to provide a mixed emulsion explosive detonating device for shallow hole blasting, which can effectively reduce construction costs and is convenient to construct. The detonating device is in close contact with the mixed emulsion explosive and can detonate reliably to avoid blind shots.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] The present application discloses an in-hole mixed emulsion explosive detonating device, which comprises:

[0008] a medicine cup, wherein the medicine cup is filled with explosive;

[0009] a detonator tube extending along the axial direction of the medicine cup and having one end close to the explosive in the medicine cup, wherein the detonator tube is hollow and forms a space for filling the detonator;

[0010] A limiting piece is provided at one end of the detonator tube away from the explosive, and the limiting piece contacts the detonator to maintain the position of the detonator;

[0011] The lead of the detonator extends from the lower end of the detonator tube to the outside of the upper end of the medicine cup.

[0012] Furthermore, the upper end of the medicine cup is an open end, and the lower end of the medicine cup is formed into a closed end by an inner plate;

[0013] The medicine cup is used to fill the explosive;

[0014] The middle portion of the inner plate is protruded toward the medicine cup to form a groove.

[0015] Furthermore, a tube is connected to the lower part of the middle portion of the inner plate, and the tube is connected to the groove to form the detonator tube;

[0016] The upper end of the detonator is located in the groove and close to the explosive;

[0017] The upper end of the detonator tube is closed by the bottom of the groove, and the lower end of the detonator tube is an open structure, and two limiting pieces are symmetrically arranged at the open structure of the detonator tube.

[0018] Furthermore, the initiating explosive is a high explosive or a No. 2 rock emulsion explosive with high initiation sensitivity and high output impulse energy.

[0019] Furthermore, a reinforcing rib is provided on the rear side of the detonator tube;

[0020] The upper end of the reinforcing rib is connected to the inner plate, and the reinforcing rib extends downward from the inner plate along the rear side of the detonator tube;

[0021] The wall thickness of the detonator tube on the side cooperating with the reinforcing rib is configured to be a structure in which the thickness gradually decreases from the end close to the inner layer plate to the end away from the inner layer plate.

[0022] Furthermore, the limiting plate is an L-shaped structure, one end of the limiting plate is connected to the rear side of the detonator tube, and the other end of the limiting plate extends toward the lower end of the detonator tube.

[0023] In the above technical solution, the present application provides a mixed emulsion explosive detonating device for shallow hole blasting, which has the following beneficial effects:

[0024] The detonator cap of the initiator of the present application is fixed in the initiator by a limiting plate and is not easy to fall off. The initiator is in close contact with the mixed emulsion explosive and can reliably detonate the mixed emulsion explosive that does not have detonator sensitivity, thereby avoiding blind shots.

[0025] The detonating device of the present application can use a small amount of detonating charge, further reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] FIG1 is a schematic structural diagram of a mixed emulsion explosive initiation device for shallow hole blasting disclosed in an embodiment of the present application;

[0028] FIG2 is a cross-sectional view of a mixed emulsion explosive initiator for shallow hole blasting disclosed in an embodiment of the present application;

[0029] FIG3 is a cross-sectional view taken along line II-II of a mixed emulsion explosive initiator for shallow hole blasting disclosed in an embodiment of the present application;

[0030] FIG4 is a cross-sectional view taken along line III-III of a mixed emulsion explosive initiator for shallow hole blasting disclosed in an embodiment of the present application;

[0031] Description of reference numerals:

[0032] 1. Medicine cup; 2. Detonator tube; 3. Reinforcement rib;

[0033] 101. Explosive; 102. Inner plate;

[0034] 201, detonator; 202, limit plate; 203, detonator foot line;

[0035] 8. Slot hole; 9. Auxiliary hole; 10. Peripheral hole; 11. Bottom plate hole. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application will be further described in detail below with reference to the accompanying drawings.

[0037] See Figures 1 to 4;

[0038] The present embodiment provides a mixed emulsion explosive detonating device for shallow hole blasting, the detonating device comprising: a powder cup 1, wherein the powder cup 1 is filled with detonating explosive 101;

[0039] A detonator tube 2 extending along the axial direction of the medicine cup 1 and having one end close to the explosive 101 in the medicine cup 1, wherein the detonator tube 2 is hollow and forms a space for loading the detonator 201;

[0040] A limit plate 202 is provided at one end of the detonator tube 2 away from the explosive 101. The limit plate 202 contacts the detonator 201 to maintain the position of the detonator 201.

[0041] The detonator leg line 203 of the detonator 201 extends from the lower end of the detonator tube 2 to the outside of the upper end of the medicine cup 1.

[0042] Specifically, this embodiment discloses a novel detonating device that can use a small amount of primer 101 to detonate a detonator 201, reliably functioning as a mixed emulsion explosive without detonator sensitivity. The device comprises a medicine cup 1 and a detonator tube 2 formed below the medicine cup 1. The medicine cup 1 is filled with the primer 101, and the detonator 201 is placed within the detonator tube 2. Detonation of the detonator 201 is accomplished using a small amount of primer 101. In this embodiment, a stopper 202 is provided at the lower end of the detonator tube 2 to limit the position of the detonator 201 and prevent it from falling out.

[0043] Preferably, the upper end of the medicine cup 1 of this embodiment is an open end, and the lower end of the medicine cup 1 is formed into a closed end by the inner plate 102;

[0044] The powder cup 1 is used to be filled with explosive 101;

[0045] The middle portion of the inner plate 102 is formed into a groove protruding toward the medicine cup 1 .

[0046] In this embodiment, a tube is connected to the lower part of the middle portion of the inner plate 102, and the tube is connected to the groove to form a detonator tube 2;

[0047] The upper end of the detonator 201 is located in the groove and close to the explosive 101;

[0048] The upper end of the detonator tube 2 is closed by the bottom of the groove, and the lower end of the detonator tube 2 is an open structure, and two limiting pieces 202 are symmetrically provided at the open structure of the detonator tube 2.

[0049] This embodiment further defines the structure of the medicine cup 1 and the detonator tube 2 formed within it. To allow the detonator 201 to be closer to the explosive 101, a groove is formed in the center of the inner plate 102 of the medicine cup 1, extending upward. This groove forms part of the detonator tube 2, allowing the end of the detonator 201 to be positioned close to the explosive 101 when inserted. A detonator leg 203 is located at the lower end of the detonator tube 2 and extends from the open end of the tube 2.

[0050] Preferably, the initiator 101 of this embodiment is a high explosive or a type 2 rock emulsion explosive having high initiation sensitivity and high output impulse energy.

[0051] Preferably, a reinforcing rib 3 is provided on the rear side of the detonator tube 2 of this embodiment;

[0052] The upper end of the reinforcing rib 3 is connected to the inner plate 102, and the reinforcing rib 3 extends downward from the inner plate 102 along the rear side of the detonator tube 2;

[0053] The wall thickness of the detonator tube 2 on the side where it cooperates with the reinforcing rib 3 is configured to be a structure in which the thickness gradually decreases from one end close to the inner layer plate 102 to the end away from it.

[0054] The limiting piece 202 of this embodiment is an L-shaped structure, one end of the limiting piece 202 is connected to the rear side of the detonator tube 2, and the other end of the limiting piece 202 extends toward the lower end of the detonator tube 2.

[0055] In the above technical solution, the present application provides a mixed emulsion explosive detonating device for shallow hole blasting, which has the following beneficial effects:

[0056] The detonator cap of the initiator of the present application is fixed in the initiator by a limiting plate and is not easy to fall off. The initiator is in close contact with the mixed emulsion explosive and can reliably detonate the mixed emulsion explosive that does not have detonator sensitivity, thereby avoiding blind shots.

[0057] The detonating device of the present application can use a small amount of detonating charge, further reducing construction costs.

[0058] The above description is merely illustrative of certain exemplary embodiments of the present application. It goes without saying that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A mixed emulsion explosive detonating device for shallow hole blasting, characterized in that: The detonating device includes: A medicine cup (1), wherein the medicine cup (1) is filled with explosive (101); A detonator tube (2) extending along the axial direction of the medicine cup (1) and having one end close to the explosive (101) in the medicine cup (1), wherein the detonator tube (2) is hollow and forms a space for loading the detonator (201); A limiting piece (202) is provided at one end of the detonator tube (2) away from the explosive (101), and the limiting piece (202) contacts the detonator (201) to maintain the position of the detonator (201); The detonator leg line (203) of the detonator (201) extends from the lower end of the detonator tube (2) to the outside of the upper end of the medicine cup (1).

2. The mixed emulsion explosive detonating device for shallow hole blasting according to claim 1, characterized in that: The upper end of the medicine cup (1) is an open end, and the lower end of the medicine cup (1) is formed into a closed end by the inner plate (102); The medicine cup (1) is used to fill the explosive (101); The middle portion of the inner plate (102) is formed into a groove protruding toward the medicine cup (1).

3. The mixed emulsion explosive detonating device for shallow hole blasting according to claim 2, characterized in that: A tube is connected to the lower portion of the middle portion of the inner plate (102), and the tube is connected to the groove to form the detonator tube (2); The upper end of the detonator (201) is located in the groove and close to the explosive (101); The upper end of the detonator tube (2) is closed by the bottom of the groove, the lower end of the detonator tube (2) is an open structure, and two limiting pieces (202) are symmetrically arranged at the open structure of the detonator tube (2).

4. A mixed emulsion explosive detonating device for shallow hole blasting according to claim 2 or 3, characterized in that: The detonator (101) is a high explosive or a No. 2 rock emulsion explosive.

5. The mixed emulsion explosive detonating device for shallow hole blasting according to claim 3, characterized in that: A reinforcing rib (3) is provided on the rear side of the detonator tube (2); The upper end of the reinforcing rib (3) is connected to the inner plate (102), and the reinforcing rib (3) extends downward from the inner plate (102) along the rear side of the detonator tube (2); The wall thickness of the detonator tube (2) on the side where it cooperates with the reinforcing rib (3) is configured to be a structure in which the thickness gradually decreases from one end close to the inner layer plate (102) to one end away from it.

6. The mixed emulsion explosive detonating device for shallow hole blasting according to claim 5, characterized in that: The limiting piece (202) is an L-shaped structure, one end of the limiting piece (202) is connected to the rear side of the detonator tube (2), and the other end of the limiting piece (202) extends toward the lower end of the detonator tube (2).

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