Single-cracked-surface instant spalling machine

Abstract

The invention discloses a single-cracked-surface instant spalling machine. The single-cracked-surface instant spalling machine comprises an energy gathering pipe, a filler pipe, a spalling agent, a coupling medium, a first lead, a second lead, a third lead and a trigger head; the energy gathering pipe is a hollow cylinder; multiple energy gathering holes are formed in two opposite radial sides ofthe energy gathering pipe; the multiple energy gathering holes extend in the axial direction of the energy gathering pipe; the filler pipe is positioned in the energy gathering pipe; the spalling agent is filled in the filler pipe; the coupling medium is arranged at the two ends of the filler pipe in the energy gathering pipe; the first lead and the second lead are connected with positive and negative poles of the trigger head, and are guided out from the two ends of a hollow pipe body; and the third lead penetrates through the energy gathering pipe, and is positioned between the outer wall ofthe filler pipe and the inner wall of the energy gathering pipe. The single-cracked-surface instant spalling machine is high in safety, low in rock breaking sound and high in rock breaking speed.

Description

technical field [0001] The present disclosure relates to the technical field of directional pre-splitting slits, in particular to a single-crack instantaneous expansion device. Background technique [0002] With the development of science and technology, people have gradually realized many problems brought by conventional blasting to production operations, such as large consumption of explosives, serious over-excavation and under-excavation of rocks, etc. [0003] When it is necessary to generate a crack surface in the coal and rock mass, the explosive blasting technology and the static breaking agent directional top cutting technology are mainly used at present. The explosive blasting and top cutting technology of the explosive concentrated energy blasting technology is more dangerous and the approval procedures are complicated; Static breaking agent directional cutting technology is adopted, the reaction time of static breaking agent is longer, and the static breaking agen...

AI Technical Summary

Problems solved by technology

[0003] When it is necessary to generate a crack surface in the coal and rock mass, the technology of concentrated energy blasting with explosives and the technology of directional top-cutting with static breakers are mainly used at present. The risk of top-cutting by explosive blasting with concentrated-energy blasting technology is relatively high, and the approval procedures are complicated; Static breaking agent directional cutting technology is adopted, the reaction time of static breaking agent is longer, and the static breaking agent with the fastest reaction at present also needs more than four hours, the expansion force of static breaking agent is small, it is difficult to cut and the strength is high the rock

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