A kind of warm pressure fuse and preparation method thereof

Abstract

The invention relates to a warm-pressing blasting fuse. The fuse comprises a fuse core and a fuse shell encapsulating the fuse core. The fuse core comprises a warm-pressing gunpowder core and a core wire placed in the warm-pressing gunpowder core. The material components of the warm-pressing gunpowder is further restricted and defined. According to the blasting fuse, the gunpowder core in the fuse core applies mainly the warm-pressing effect, wherein only under high temperature can the fire be ignited, the mechanical sensitivity is low, thus guaranteeing the safety in the whole process of preparation, transportation, storage and application with sharply decreased gas generation. The substances created from the combustion are mainly condensed phase matter which reduces the fluctuation of combustion speed, and at the same time generates high impact and heat to contribute work by breaking rocks. The fuse has the advantages of generating a large amount of heat, generating high temperature and impact energy, being able to effectively avoid detonation reaction, thus achieving a harmonious explosion work application.

Description

Technical field [0001] The invention belongs to the technical field of blasting equipment, and specifically relates to a temperature and pressure fuse and a preparation method thereof. Background technique [0002] The fuse is a supporting material for igniting the fire detonator, which can continuously transmit the flame at a relatively stable speed and detonate the fire. The structure of the fuse—the fuse uses powdered or granular black powder as the core powder. There are three core wires in the core powder. Its function is to ensure the uniformity of the production of the powder and the stable burning speed. The core medicine wraps the inner layer line, the inner layer paper, the middle layer line, the asphalt, the outer layer paper, the outer layer line and the coating layer in turn from the inside to the outside. [0003] However, the existing fuse has the following problems: [0004] (1) Burning produces a large amount of gas, and the burning rate fluctuates greatly; [0005]...

AI Technical Summary

Problems solved by technology

[0004] (1) Combustion produces a large amount of gas, and the burning rate fluctuates greatly;

[0005] (2) The density of the black powder agent is small, and it only ignites without doing work;

[0006] (3) Combustion gas products will produce toxic gases at the site of use;

[0007] (4) The mechanical sensitivity of dry black powder is high, the danger in production is high, and the black powder is easy to be affected by moisture and deteriorate;

[0008] (5) Black powder, especially sulfur-containing black powder, has poor temperature resistance and is prone to accidental combustion during processing;

[0009] (6) When in use, it will cause rapid combustion due to heavy objects or air blockage at the excessively bent part of the fuse, and even lead to accidents.

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