Fabricated lead sealing trigger and cracking device

Abstract

The invention discloses a fabricated lead sealing trigger and a cracking device. The fabricated lead sealing trigger comprises a shell, a filling cavity, an ignition mechanism and an air inflation mechanism, the filling cavity is arranged in the shell, the shell is connected with and seals the ignition mechanism and the air inflation mechanism, and the filling cavity is filled with supercritical oxygen and carbonaceous organic materials or reductive elementary substance; the ignition mechanism comprises an electric heating wire, a wire, a wire punching hole and a sealing base, the electric heating wire is connected with the wire, the axis part of the sealing base is the wire punching hole, and the wire penetrates the wire punching hole through an insulating layer outer package; one end of the wire punching hole is provided with an internal thread hole, an inner sealing rubber ring is installed at the bottom of the internal thread hole, a hole punching screw is matched with the internal thread hole, and a punching hole is formed in the axis of the hole punching screw; the wire penetrates the inner sealing rubber ring and the hole punching screw, the hole punching screw is matched with the internal thread hole to press the inner sealing rubber ring, and a wire hole is sealed. The fabricated lead sealing trigger has the beneficial effects of being low in manufacturing cost, high in reaction material mixing uniformity, high in heat release efficiency and good in transportation safety.

Description

technical field [0001] The invention belongs to the technical field of detonators, in particular to an assembled lead wire sealed detonator and a cracker. 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] The existing gas blaster mainly includes a vaporization liquid storage pipe and a heating detonator installed in the vaporization liquid storage pipe; the heat generation detonator ignites and generates heat ...

AI Technical Summary

Problems solved by technology

[0006] The detonator with the above structure has the following problems: 1. The thermal reactants to be filled in the detonator need to be processed by mixing, mixing, coiling or bagging, and the filling process is time-consuming. 2. During the filling process of the detonator, the oxidant and reducing agent 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 during transportation is too high. 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 detonation method of the existing gas blaster uses a solid activator to burn to generate high temperature, which directly conducts heat to the liquid carbon dioxide, causing the liquid carbon dioxide to gasify and expand, and the heat absorption efficiency of the liquid carbon dioxide is low; 6. The heat release of the detonator The speed is slow, the chemical reaction is insufficient, the thermal release efficiency is low, the pressure of the liquid is relatively small after gasification, and the blasting power is small; 7. After the blasting, the reactants in the detonator produce a large amount of toxic and harmful gases, such as sulfur Gases such as hydrogen, sulfur dioxide, nitric oxide, and nitrogen dioxide bring relatively large poisonous pollution to the blasting site

[0007] In addition, since the conventional lead wire sealing method is sealant curing, that is, the sealant is poured into the lead hole containing the lead wire, and then air-dried and cured. This kind of sealing process takes a long time. There is an air-drying area composed of air-drying equipment groups; and the compressive strength of this sealing method is low, and it is easy to leak when the air pressure is high

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