A lead-core type detonating element and a basic detonator composed of the detonating element

Abstract

The invention discloses a lead-core type explosive element and a basic detonator composed of the explosive element. The lead-core type explosive element comprises an inner tube, a lead core part and aloose ignition charge. The lead core part is positioned in the upper part of the inner tube, the loose ignition charge is positioned below the lead core part in the inner tube, the basic detonator comprises a metal tube shell, and a grain charge, a loose charge and a lead-core type explosive element are sequentially arranged in the metal tube shell from bottom to top, and a delay body, an electronic ignition element or a detonating tube are additionally arranged above the lead-core type explosive element. The basic detonator does not need a primary explosive, and the problems of potential safety hazard, environmental pollution and high cost of the primary explosive are solved. The special tube shell and inner tube are not required, and the assembly process is simple; the phenomenon that detonators explode incompletely during inverted initiation is eliminated; and therefore, the primary explosive-free basic detonator of the invention has the advantages of high reliability, simple quality control, safety, environmental protection, economy and practicality.

Description

technical field [0001] The invention relates to the technical field of detonating materials, in particular to a lead-core type detonating element and a basic detonator composed of the detonating element. Background technique [0002] Most of the various detonators used in engineering blasting are detonators with primary explosives. [0003] The detonator with priming charge has the following disadvantages: the manufacture of the priming charge will generate a large amount of wastewater and the priming charge itself is highly sensitive, and it is prone to explosion during production, transportation and use. The potential safety hazard is self-evident, and wastewater treatment is difficult and costly. [0004] Since the 1990s, domestic and foreign scientific and technological workers have actively explored and developed various types of non-priming detonators, among which the flyer non-priming detonator is the most typical, but the flyer non-priming detonator requires a specia...

AI Technical Summary

Problems solved by technology

[0003] There are the following disadvantages in detonators with detonators: the manufacture of detonators will generate a large amount of waste water and the detonators themselves are highly sensitive, and are prone to explosion during production, transportation and use. The potential safety hazards are self-evident, and wastewater treatment is difficult and costly.

[0004] Since the 1990s, domestic and foreign scientific and technological workers have actively explored and developed various types of non-priming detonators, among which the flyer non-priming detonator is the most typical, but the flyer non-priming detonator requires a special shell and The inner tube with grooves has high manufacturing cost and complex assembly process. In the process of industrial production, quality control is difficult. Inverted detonation has the phenomenon of incomplete detonator explosion.

Images