Engineering blasting foundation detonator capable of improving safety

Abstract

The invention discloses an engineering blasting foundation detonator capable of improving safety. The engineering blasting foundation detonator capable of improving safety comprises a detonator shell, a reinforcing cap, an initiating explosive, a first-stage high explosive and a second-stage high explosive. The detonator shell is made of conductive engineering plastic; the reinforcing cap is axially fixed by the detonator shell in a hot riveting, spot riveting, tightening or bonding manner; the reinforcing cap is changed into a bottom sealing structure from a bottom opening structure, and is made of steel instead of pure aluminum or red copper; and the initiating explosive is completely pressed into the reinforcing cap, and no initiating explosive exists at the joint of the reinforcing cap and the detonator shell. The engineering blasting foundation detonator capable of improving safety is simple in structure, sympathetic detonation prevention safety of the detonator can be effectively improved, fragment damage caused by accidental explosion of the detonator is reduced, and the safety of the detonator during impact resistance, vibration resistance, falling resistance, accidental rolling compaction resistance and striking resistance is improved.

Description

technical field [0001] The invention belongs to the technical field of industrial detonators, in particular to an engineering blasting basic detonator with improved safety. Background technique [0002] Due to the large amount of production and use of engineering blasting detonators, their safety issues are very prominent. Safety accidents of accidental ignition and explosion during the production, storage, transportation and use of engineering blasting detonators occur from time to time. Theoretically, the non-priming detonator can solve the intrinsic safety problem of engineering blasting detonator. However, the present non-primer detonator may have the problem of unreliable detonation and unstable output power in a skewed state due to the loose charge. The digital detonator is mainly to solve the problem of dangerous goods safety management and public security riot prevention, and does not improve the intrinsic safety of the engineering detonator, that is, the basic det...

AI Technical Summary

Problems solved by technology

However, the current non-priming detonators may be due to the loose charge, so there are still problems of unreliable detonation and unstable output power in a skewed state.

The digital detonator is mainly to solve the problem of dangerous goods safety management and public security riot prevention, and has not improved the intrinsic safety of engineering detonators, that is, the basic detonators of engineering blasting, in terms of structure and technical principles.

The design of basic detonators for blasting in existing projects is more about production efficiency and cost, less about safety, and there are certain safety hazards

The main manifestations are: the metal tube shell is accompanied by fragment hazards and the anti-explosion effect is not good; there is a fire transmission hole at the bottom of the reinforced cap, which makes the basic detonator parts unable to realize self-sealing and affects the storage life; The special fixing measures have the possibility of movement, which makes the sensitive charge in the reinforced cap loose, and there is a hidden danger of accidental friction and ignition; the structural strength of the reinforced cap is weak and cannot protect the priming charge in it, so it will detonate when it is subjected to shock, vibration, drop, accidental crushing and blows The powder is easy to accidentally ignite and detonate the whole detonator; the charge between the reinforced cap and the tube shell is a priming charge, which is relatively sensitive, and the friction generated by the relative displacement of the two can easily cause accidental detonation to detonate the whole detonator

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