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Detonator cover structure for limiting fragment scattering in detonator detonating process

A technology of fragment scattering and detonator cover, which is applied in the protection field of blasting engineering, can solve the problems of blind guns and hidden dangers of blasting work, and achieve the effect of improving the success rate and eliminating construction risks.

Active Publication Date: 2015-03-04
CHINA RAILWAY TUNNEL GROUP CO LTD
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AI Technical Summary

Problems solved by technology

In this case, the fragments produced by detonating the detonator first are likely to cut off the detonator that has not yet been detonated, resulting in a blind shot, which brings safety hazards to the blasting work

Method used

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  • Detonator cover structure for limiting fragment scattering in detonator detonating process

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Embodiment Construction

[0009] The present invention will be described with reference to the drawings and specific embodiments:

[0010] Such as figure 1 , A detonator cover structure that restricts fragments from flying during the detonation process of the detonator, the detonator cover structure is composed of steel plates with different shapes; the detonator cover structure is composed of: a semicircle processed by a steel plate with a certain length The cylindrical body 2 is welded with two semicircular steel plates 1 symmetrically arranged on both ends of the semicircular cylindrical body, forming a cover-shaped structure with a semicircular cross-sectional shape and closed by semicircular steel plates at both ends; the cover-shaped structure The radius of the semicircular openings on the two end surfaces is smaller than the radius of the semicircular cylinder 2. The steel plate constituting the semicircular cylinder body 2 and the two semicircular ring steel plates 1 symmetrically arranged on bot...

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Abstract

The invention belongs to the protection technology of blasting engineering and provides a detonator cover structure for limiting fragment scattering in the detonator detonating process. The detonator cover structure is formed by combining steel plates with different shapes; the detonator cover structure is formed by welding a semicircular tube body (2) and two semicircular steel plates (1), the semicircular tube body (2) is processed by a steel plate with a certain length, the semicircular steel plates (1) are symmetrically arranged at two end surfaces of the semicircular tube body (2), and the cover type structure with the semicircular cross section shape and the semi-annular steel plates at two ends for sealing is formed; and the radiuses of semicircular open holes arranged at two end surfaces of the cover structure are smaller than the radius of the semicircular tube body (2). The detonator cover structure has the advantages that the hidden danger of detonator blasting propagation failure caused by nearby detonator cut by scattered fragments after the detonator blasting in the detonator group connecting detonating structure is avoided, the blasting success rate is improved, and the construction risk of blind gun generation is avoided.

Description

Technical field [0001] The invention belongs to the protection technology of blasting engineering, and mainly proposes a detonator cover structure that restricts the fragments from flying during the detonation process. Background technique [0002] Nonel detonator is the abbreviation of plastic nonel detonator. It is an industrial detonator excited by the shock wave impulse energy of the nonel and consists of a nonel and a fire detonator assembly. The detonator has anti-static, anti-lightning, anti-radio frequency, anti-water and anti-stray current capabilities. Because it is safe and reliable to use, simple and easy to use, it is widely used in blasting projects without explosion hazards such as biogas and coal dust. The detonating tube detonator can be detonated by electric needle firing, electric detonator or fire detonator. When the cluster blasting network is adopted, one shot of No. 8 detonator can fire 15-20 detonators at the same time. However, when the scope of the bla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D5/00
Inventor 刘洪震洪开荣邹翀李治国路耀邦高攀王菀
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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