Detonator cover structure for limiting fragment scattering in detonator detonating process

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

Active Publication Date: 2012-08-08
CHINA RAILWAY TUNNEL GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

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Embodiment Construction

[0009] The present invention is described in conjunction with accompanying drawing and specific embodiment:

[0010] like figure 1 , a detonator cover structure that limits the scattering of fragments during the detonation process of the detonator. The detonator cover structure is composed of steel plates with different shapes; Shaped cylinder 2 and two semicircular steel plates 1 symmetrically arranged on both ends of the semicircular cylinder are welded to form a cover structure with a semicircular cross-sectional shape and closed semicircular steel plates at both ends; the cover structure The radius of the semicircular openings on both end surfaces is smaller than the radius of the semicircular cylinder body 2 . The steel plate constituting the semicircular cylinder 2 and the two semicircular steel plates 1 symmetrically arranged on both ends of the semicircular cylinder are processed from steel plates with a thickness not less than 5 mm.

[0011] The length of the detona...

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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 which limits the scattering of fragments in the detonation process of the detonator. 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 tube. It is composed of a nonel tube and a fire detonator assembly. The nonel detonator has the ability of anti-static, anti-lightning, anti-radio frequency, anti-water, and anti-stray current. Because of its safe, reliable and simple operation, it is widely used in blasting projects without explosion hazards such as biogas and coal dust. The nonel detonator can be detonated by electric needle percussion, electric detonator or fire detonator. When a cluster blasting network is used, one shot of No. 8 detonator can trigger 15 to 20 nonel tubes at the same time. However, w...

Claims

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Application Information

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Patent Type & Authority Applications(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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