Gas blaster igniter and cracker

Abstract

The invention discloses a gas blaster igniter and a cracker. The gas blaster igniter comprises a shell, a filling cavity, an ignition mechanism and an inflation mechanism, wherein the filling cavity is formed in the shell, the shell is connected with the sealed ignition mechanism and the inflation mechanism, the ignition mechanism comprises a heating wire, a lead, a lead perforation and a sealed base body, the heating wire is connected with the lead, the axis part of the sealed base body is the lead perforation, and the lead wrapped by an insulating layer penetrates through the lead perforation; one end of the lead perforation is an inner threaded hole, an inner seal rubber ring is installed at the bottom of the inner threaded hole, the inner threaded hole is matched with a perforation screw, a perforation is formed in the axis of the perforation screw, the lead penetrates through the inner seal rubber ring and the perforation screw, and the perforation screw is matched with the inner threaded hole and compacts the inner seal rubber ring to seal a lead hole. The gas blaster igniter and the cracker have the advantages of low manufacturing cost, high reactant mixing uniformity, high heat release efficiency and good transport safety.

Description

technical field [0001] The invention belongs to the field of detonating devices, in particular to a detonating device for a gas blaster. Background technique [0002] Gas blasting technology is to use the vaporization and expansion of easily vaporized liquid or solid substances to generate high-pressure gas, which makes the surrounding medium expand to do work and cause fragmentation. It has the characteristics of no open flame, safety and high efficiency. [0003] Carbon dioxide gas blasters are typical blasting equipment in gas blasting technology, and are widely used in mining, geological exploration, cement, steel, electric power and other industries, subways and tunnels, municipal engineering, underwater engineering, and emergency rescue. [0004] Existing gas blasters mainly include a vaporization liquid storage pipe and a heating detonator installed in the vaporization liquid storage pipe; the heating detonation device ignites and generates heat to vaporize easily vap...

AI Technical Summary

Problems solved by technology

[0006] The detonating device with the above structure has the following problems: 1. The thermal reactants to be filled in the detonating device need to be processed by mixing, mixing, coiling or bagging, and the filling process is time-consuming. 2. During the filling process of the detonating device, the oxidant and reductant are prone to uneven mixing, resulting in low heat release efficiency; 3. The thermal reaction material needs to be mixed and filled in advance, and the temperature is too high during transportation. It is highly likely to cause combustion or explosion, and has a greater potential safety hazard; 4. Due to the delay of the detonating material or other situations, it is easy to appear the situation of squibs, and it is impossible to judge the cause of the squibs, so it cannot be eliminated by rowing the squibs Potential safety hazard; 5. The existing gas blaster detonation method uses a solid activator to burn to generate high temperature, which directly conducts heat to liquid carbon dioxide, causing the liquid carbon dioxide to gasify and expand, and its heat absorption efficiency of liquid carbon dioxide is low

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