CN104649853B

CN104649853B - Safety detonator

Info

Publication number: CN104649853B
Application number: CN201310583216.0A
Authority: CN
Inventors: 顾勇; 许道峰; 詹新进; 廖德智; 王中伟; ***; 申磊; 邹迪帆
Original assignee: Hubei Weidong Chemical Co ltd
Current assignee: Hubei Weidong Chemical Co ltd
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2020-06-30
Anticipated expiration: 2033-11-20
Also published as: CN104649853A

Abstract

The invention provides a safety detonator, which comprises a tube shell with an opening at one end and a closed end; the main charge is tightly pressed at the closed end of the tube shell; the booster charge is filled next to the main charge; an inner tube is arranged in the tube shell close to the booster explosive; the end of the inner tube facing the booster charge is open, and the end facing the opening of the tube shell is closed; a cross-shaped prefabricated fire transmitting port is arranged at the closed end of the inner pipe; the primary explosive is tightly pressed at the closed end of the inner tube; the inner tube between the primary explosive and the secondary explosive is filled with loose explosive. The structure of the invention effectively solves the problem of medicine leakage when the medicine is pressed by the reinforced cap structure, and effectively improves the production safety of products.

Description

Safety detonator

Technical Field

The invention relates to a civil blasting material.

Background

At present, in the industry of civil blasting materials, a reinforcing cap is omitted in the structure of a detonator, a fire transfer hole is required to be reserved in the reinforcing cap, when the initiating explosive is pressed in the reinforcing cap, the phenomenon that the initiating explosive leaks from the fire transfer hole exists, the initiating explosive is sensitive, the leaked initiating explosive has the possibility of explosion in a tooling die, and the production safety of products is poor.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the prefabricated inner tube type safety detonator which can effectively improve the production safety of products.

The technical scheme of the invention is as follows: comprises a pipe shell with an opening at one end and a closed end; the main charge is tightly pressed at the closed end of the tube shell; the booster charge is filled next to the main charge; an inner tube is arranged in the tube shell close to the booster explosive; the end of the inner tube facing the booster charge is open, and the end facing the opening of the tube shell is closed; a cross-shaped prefabricated fire transmitting port is arranged at the closed end of the inner pipe; the primary explosive is tightly pressed at the closed end of the inner tube; the inner tube between the primary explosive and the secondary explosive is filled with loose explosive.

The cross-shaped prefabricated fire transfer port is a cross-shaped groove which is not communicated with the interior of the pipe shell.

The structure of the invention effectively solves the problem of medicine leakage when the medicine is pressed by the reinforced cap structure, and effectively improves the production safety of products.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the inner tube.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a bottom view of fig. 2.

In the figure, 1, a tube shell, 2, an inner tube, 3, a main charge, 4, a booster charge, 5, a primary explosive, 6, a loose explosive, 7, a fire transfer hole, 8 and a prefabricated fire transfer port are arranged.

Detailed Description

In fig. 1, the present invention comprises a tube shell 1, an inner tube 2; the inner section of the tube shell 1 is filled with a main charge 3 and an explosion-conducting powder 4 from inside to outside in sequence, and an inner tube 2 is arranged outside the explosion-conducting powder 4; one end of the inner tube 2 is open, the other end is closed, and the closed end is provided with a cross-shaped prefabricated fire transmission port 8. The inner tube 2 is pressed and mounted in front of the tube shell 1, the closed end is filled with the primary explosive 5 and a small amount of loose explosive 6 in sequence, the primary explosive 5 and the loose explosive 6 are pressed into blocks on a specific tooling die, and the prefabricated fire transfer port 8 is jacked open to form a fire transfer hole 7 during pressing.

In fig. 2, 3 and 4, one end of the inner tube 2 is open, the other end is closed, and the closed end is provided with a cross-shaped prefabricated fire transfer port 8. The cross-shaped prefabricated fire transfer port is a cross-shaped groove which is not communicated with the interior of the tube shell.

The specific manufacturing process of the invention comprises the following steps: the pipe shell 1 is arranged in a specific tooling die, the main charge 3 and the booster charge 4 are sequentially arranged, and the main charge and the booster charge are respectively pressed by a positioning method or a constant pressure method; the inner tube 2 is arranged in a specific tooling die, then the inner tube 2 is filled with the primary explosive 5 and the loose explosive 7, the explosive is pressed by a positioning method or a constant pressure method, and a prefabricated fire transfer port 8 is jacked to form a fire transfer hole 7 during pressing; and then the pressed inner tube 2 is pressed into the tube shell 1, and the detonator is manufactured.

Claims

1. A manufacturing method of a safety detonator is characterized in that: the pipe shell (1) is arranged in a specific tooling die, the main charge (3) and the booster charge (4) are sequentially arranged, and the main charge and the booster charge are respectively pressed by a positioning method or a constant pressure method; the inner tube (2) is arranged in a specific tooling die, then the inner tube (2) is filled with the initiating explosive (5) and the loose explosive (6), the explosive is pressed by a positioning method or a constant pressure method, and a prefabricated fire transfer port (8) is jacked open to form a fire transfer hole (7) during pressing; then the pressed inner tube (2) is pressed into the tube shell (1), and the safety detonator is manufactured;

the safety detonator comprises a tube shell (1) with one open end and one closed end; the main charge (3) is tightly pressed at the closed end of the tube shell (1); an explosion transfer medicine (4) is filled close to the main charge (3); an inner tube (2) is arranged in the tube shell (1) and close to the booster (4); one end of the inner tube (2) facing the booster charge (4) is opened, and one end facing the opening of the tube shell (1) is provided with a fire transfer hole (7) formed by jacking a prefabricated fire transfer port (8); the primary explosive (5) is tightly pressed at one end of the inner tube (2) facing the opening of the tube shell (1); loose explosive is filled in the inner tube (2) between the primary explosive (5) and the booster explosive (4);

the prefabricated fire transfer port (8) is a cross-shaped groove which is not communicated with the interior of the tube shell.