Sublevel interval charging detonation flame-proof tube in confined space and flame-proof method
A segmented interval and confined space technology, applied in the field of blasting, can solve the problems of high consumption of explosives, difficulty in meeting the requirements of rapid prototyping in military applications, and long working time, so as to achieve the effect of improving the blasting effect
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[0034] The purpose of the present invention is to form a special-sized V-shaped pit on a hard rock by one-time blasting, improve the efficiency of pit body forming, and avoid the operational risk caused by the blasting construction of secondary filling explosives. The adopted scheme is in A blasting device with two-stage explosives installed after drilling a hole in the rock, and controlling the delay between the upper explosive and the lower explosive, so that the upper charge creates an air surface for the lower charge, reducing the blasting time of the two charges The minimum resistance line realizes rapid prototyping of the pit body in one blast with less charge.
[0035] Such as image 3 As shown, the main technical route of the present invention is as follows: first, a hand-held drill is used to drill a vertical blast hole 92 in the rock 96, and then the blasting device 93 of the present invention, which integrates the upper and lower charges and the delay transmission u...
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