Threaded twist joint type initiator and cracking device

Abstract

The invention discloses a threaded twist joint type initiator and a cracking device. The threaded twist joint type initiator comprises a housing, a filling cavity, an ignition mechanism and an inflation mechanism, wherein the filling cavity is formed in the housing, the housing is connected to and seal the ignition mechanism and the inflation mechanism, and the filling cavity is filled with supercritical oxygen and a carbon-containing organic matter or a reductive single element; the ignition mechanism comprises an electric heating wire, a wire, a perforated hole of the wire, a sealed base body and a thread hole slot; the electric heating wire is connected to the wire, the thread hole slot is located in the upper portion of the perforated hole of the wire, a positive electrode contact pin is mounted at the axis of the thread hole slot, the positive electrode contact pin and the sealed base body are insulative, the surrounding edge of the thread hole slot is a negative electrode connecting thread, the bottom end of the perforated hole of the wire is an internal threaded hole, an internal sealing rubber ring is mounted in the bottom of the internal threaded hole, the internal threaded hole is matched with a perforated screw, and the wire penetrates through the internal sealing rubber ring and the perforated screw. The initiator disclosed by the invention has the advantages of being low in manufacturing cost, high in mixing uniformity of reaction materials, high in heat release efficiency, good in transporting safety and stable in connection of the wire.

Description

technical field [0001] The invention belongs to the technical field of detonators, and in particular relates to a thread twisting 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 lead wire of the conventional detonator contains two exposed terminals, the wiring needs to be connected separately, and the wiring process takes a long time; and the exposed terminals are prone to the risk of electrostatic contact, and there is a risk of electrostatic detonation; in addition, the conventional terminal At the connection point, the force capacity is small, and it is easy to disconnect

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