Mine underground large blasting detonating bomb shell device

Abstract

The utility model belongs to the field of detonating bombs, and relates to a mine underground large-blasting detonating bomb shell device which comprises a charging barrel, a shell body and a shell body. The air cylinder is communicated with the medicine charging cylinder, and the inner diameter of the air cylinder is smaller than the diameter of the containing cavity; and the sealing cover simultaneously covers the notch and the end of the accommodating cavity where the notch is located. Direct contact between the initiating explosive device and the high-pressure air pipe can be avoided, and static electricity is prevented.

Description

Technical Field

[0001] The utility model belongs to the field of explosive bombs, and relates to a shell device of an underground large-scale blasting explosive bomb. Background Art

[0002] The large-scale blasting operation in the mine adopts the BQ-100 type charge device, which loads the viscous emulsified ammonium oil explosive from bottom to top. The working air pressure of the charge device is 0.2MPa~0.45MPa, the charging speed is 30kg / min~75kg / min, and the charge density is 1.0g / cm 3 The explosive package is made by inserting a detonator into a Ф35 emulsion explosive and then tying it firmly with tape. When loading, the explosive package is sent to the designated location with an air duct. This method is that the charging air duct directly contacts the pyrotechnics and uses high wind pressure to send the explosive package to the designated location. The outer diameter of the air duct is Ф35 and the inner diameter is Ф25.

[0003] During actual use, the explosive package is in unstable contact with the air duct and is prone to slipping, posing a safety risk. Improper operation may cause an explosion accident.

[0004] To solve the above problems, a common method is to reinsert the explosive package into one end of the air duct and then send the explosive package to the designated location. Utility Model Content

[0005] The present application provides a shell device for a large-scale blasting detonator bomb in a mine, which can prevent pyrotechnics from directly contacting a high-pressure air duct and prevent static electricity.

[0006] In order to achieve the above technical objectives, the present application provides a mine underground large blasting detonator shell device, comprising

[0007] A drug cartridge having a containing cavity, one end of which is provided with a notch;

[0008] A wind tube connected to the medicine-loading cylinder, wherein the inner diameter of the wind tube is smaller than the diameter of the accommodating cavity;

[0009] The closing cover covers the notch and the end of the accommodating cavity where the notch is located.

[0010] As an improved technical solution of the present application, the outer wall of the accommodating cavity is provided with a groove along the axial direction of the accommodating cavity; and the groove is provided with the notch at one end of the accommodating cavity.

[0011] As an improved technical solution of the present application, there are multiple grooves, and the multiple grooves are evenly distributed.

[0012] As an improved technical solution of the present application, the air duct has a variable inner diameter, the end with the largest inner diameter is connected to the accommodating cavity, and the end with the smallest inner diameter is away from the accommodating cavity.

[0013] As an improved technical solution of the present application, the radius of the groove is 5 mm.

[0014] As an improved technical solution of the present application, the air cylinder and the medicine cartridge are designed as one piece.

[0015] The effects that the device of this application can achieve are as follows:

[0016] 1. The integrated design of the air cylinder and the charge cartridge can effectively prevent the detonator from falling off and the entire explosive package from falling off.

[0017] 2. The use of this device can greatly reduce the charging operation time and improve the construction efficiency.

[0018] 3. The device has low cost and can be mass-produced.

[0019] 4. Simple operation, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front view of the device of the present application is shown;

[0021] Figure 2 A top view of the device of the present application is shown;

[0022] Figure 3 Draw Figure 1 Left view of;

[0023] Figure 4 A schematic diagram of the cross-sectional structure of the device after loading the emulsified ammonium oil explosive is drawn;

[0024] In the figure, 1, closing cover; 2, charge cartridge; 3, air cylinder; 4, groove; 5, notch; 6, emulsion explosive; 7, detonator. DETAILED DESCRIPTION

[0025] The present application provides a large-scale explosive bomb shell device for underground mines. The large-scale explosive bomb shell device is made of plastic products, and detonators and explosives are filled into the device to avoid direct contact between pyrotechnics and high-pressure air ducts and prevent static electricity.

[0026] The technical solution of the present application is clearly and completely described below in conjunction with the accompanying drawings and implementation methods.

[0027] like Figure 1-4 As shown, a large-scale blasting detonating shell device for underground mines includes:

[0028] The charge cartridge 2 has a containing cavity, and the outer wall of the containing cavity is provided with a groove 4 along the axial direction of the containing cavity; the groove 4 is provided with a notch 5 at one end of the containing cavity; the purpose of the notch 5 is to ensure the routing of the lead wire of the detonator 7.

[0029] The wind tube 3 is connected to the charge barrel, and the inner diameter of the wind tube 3 is smaller than the diameter of the accommodating cavity, so as to ensure that the emulsion explosive and the detonator 7 will not fall out of the wind tube 3 after being loaded into the charge barrel 2.

[0030] The closing cover 1 covers the notch 5 and the end of the accommodating cavity where the notch 5 is located at the same time, and one end thereof is designed to be sealed to prevent the detonator 7 from falling off alone.

[0031] As an improved technical solution of the present application, there are multiple grooves 4, and the multiple grooves 4 are evenly distributed, and each groove 4 is parallel to the axis of the air duct 3. After using digital electronic detonators, shallow hole blasting generally loads one detonator into each detonating bomb, and deep hole blasting generally loads two detonators into each detonating bomb. The number of the grooves 4 is designed according to the on-site detonator requirements.

[0032] As an improved technical solution of the present application, the air duct 3 has a variable inner diameter, the maximum end of the inner diameter is connected to the accommodating cavity, and the minimum end of the inner diameter is away from the accommodating cavity. The purpose is: 1. To ensure that the emulsion explosive and the detonator will not fall out of the air duct 3 after being loaded into the charge cartridge 2. 2. The minimum end of the inner diameter of the air duct 3 is inserted into the external high-pressure air duct, and the maximum end of the inner diameter is larger than the inner diameter of the charge high-pressure air duct. When charging, the minimum end can be firmly connected to the high-pressure air duct, which can effectively prevent the detonating bomb from falling off.

[0033] As an improved technical solution of the present application, the radius of the groove 4 is 5 mm.

[0034] As an improved technical solution of the present application, the air duct 3 and the charge cartridge 2 are designed as one body, which ensures that the air duct 3 is in firm contact with the charge cartridge 2 and can effectively prevent the explosive bomb from falling off.

[0035] Example 1

[0036] The utility model relates to a shell device for a large-scale blasting detonator bomb in a mine, wherein the shell of the detonator bomb is made of plastic.

[0037] The explosive shell device includes:

[0038] The charge cartridge 2 has a receiving chamber, and the outer wall of the receiving chamber is provided with a groove 4 along the axial direction of the receiving chamber; the groove 4 is provided with a notch 5 at one end of the receiving chamber; the air tube 3 is connected to the charge cartridge 2, and the inner diameter of the air tube 3 is smaller than the diameter of the receiving chamber; the closing cover 1 covers the notch 5 and the end of the receiving chamber where the notch 5 is located, and one end of the air tube is designed to be sealed; there are two grooves 4, which are symmetrically designed and parallel to the axis of the air duct. The inner diameter of the charge cartridge 2 is the same as the diameter of the emulsion explosive, which is 35 mm, and the length is 115 mm, which is slightly longer than the detonator shell. The radius of the groove is 5 mm.

[0039] The wind tube 3 has a variable inner diameter, the largest end of the inner diameter is connected to the accommodating cavity, and the smallest end of the inner diameter is away from the accommodating cavity and connected to the external high-pressure air duct. The large end of the inner diameter of the wind tube 3 is 26 mm, and the small end of the inner diameter of the wind tube 3 is 22 mm.

[0040] The cartridge 2 is provided with two 10*10mm notches 5 at the end of the groove 4 for placing the detonator 7 foot wires; the groove 4 part with a semicircular cross section is convenient for routing the detonator foot wires.

[0041] When in use, the emulsion explosive is installed in the charge cartridge 2, and the fuse extends from one end of the charge cartridge 2 located at the closing cover 1 and passes through the closing cover 1 from the notch 5 and extends along the groove 4. Two detonators 7 are installed in each charge cartridge 2, and the detonators 7 are fixed due to the action of the closing cover 1. High wind pressure is introduced into the wind tube 3, and the high wind pressure sends the shell of the detonating bomb to the specified position in the charge hole. The charge hole is filled with viscous emulsified ammonium oil explosive (emulsion explosive 6); at the same time, the action of the closing cover 1 ensures that the emulsion explosive will not fall off. When each charge hole is designed to be equipped with two detonating bombs, the detonating bombs are installed at the bottom of the charge hole at 1 / 4 of the hole depth and 3 / 4 of the hole depth from the bottom of the hole; when each charge hole is designed to be equipped with one detonating bomb, the detonating bomb is installed at the bottom of the charge hole at 1 / 4 of the hole depth from the bottom of the hole.

Claims

1. A shell device for a large-scale blasting detonator in a mine, characterized in that: include A drug cartridge having a containing cavity, one end of which is provided with a notch; A wind tube connected to the medicine-loading cylinder, wherein the inner diameter of the wind tube is smaller than the diameter of the accommodating cavity; The closing cover covers the notch and the end of the accommodating cavity where the notch is located.

2. The underground large-scale blasting detonator shell device of claim 1, characterized in that: The outer wall of the accommodating cavity is provided with a groove along the axial direction of the accommodating cavity; and the groove is provided with the notch at one end of the accommodating cavity.

3. The underground large-scale blasting detonator shell device of claim 2, characterized in that: There are multiple grooves, and the multiple grooves are evenly distributed.

4. The underground mine large-scale blasting detonator shell device according to claim 1 is characterized in that: The wind tube has a variable inner diameter, the largest end of the inner diameter is connected to the accommodating cavity, and the smallest end of the inner diameter is away from the accommodating cavity.

5. The underground mine large-scale blasting detonator shell device according to claim 2 is characterized in that: The radius of the groove is 5 mm.

6. The underground large-scale blasting detonator shell device of claim 1, characterized in that: The air cylinder and the medicine-filled cylinder are designed as one body.

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