Blasting fuse of high-safety firecracker and preparation method thereof

Abstract

The present invention relates to a preparation method of a safe firing cable of firecrackers. In the method, yarn is used as a carrier to infuse the following medicines, which are used raw materials, according to the following steps. The medicines comprise potassium perchlorate, potassium terephthalic acid, ammonium dichromate, polyethylene alcohol, moisture resistant agent, charcoal and sulfur. The method has the following steps: the potassium perchlorate, the potassium terephthalic acid, the ammonium dichromate, the charcoal, the sulfur and the polyethylene alcohol are arranged in a container according to the weight ratio; water with a certain proportion is added into the container; the mixture is stirred so that the medicines can be dissolved in the water; then the moisture resistant agent is added; and the mixture is mixed well; the yarn is infused in the container, taken out and then sent to a drying device to be dried; thus the safe firing cable can be prepared. In the method, the yarn is used as the carrier to infuse the medicines of the firing cable; the production is simple; the amount of the medicines is reduced; the method is safe; and the cost is reduced. The application of the potassium perchlorate has the advantages of low oxygen content, low decomposition temperature, excellent stability and low sensitivity. Thus the application of the potassium perchlorate is superior to the application of potassium chlorate. The firing cable solves the problems of storage, transportation and insecurity in use.

Description

Technical field [0001] The invention relates to a safety fuse for firecrackers; it is especially suitable for fuse for firecrackers or engineering blasting explosives. Background technique [0002] Potassium chlorate is used as the oxidant in the production of the firecracker fuse of the transmission or the fuse of the engineering blasting explosive. Potassium chlorate has high oxygen content, low decomposition temperature, and relatively low price. After being mixed with combustibles, it has good explosive performance. Poor stability, low melting point, and high sensitivity when mixed with other combustibles. Careless or careless operation will cause burning and explosion accidents, which will cause huge losses to the country and the people. Therefore, in 2002, the State Council invented and stipulated that the use of potassium chlorate is strictly prohibited. Fireworks and firecrackers, so the technical personnel of the manufacturers began to develop safety fuse, some manufactu...

AI Technical Summary

Problems solved by technology

[0002] Potassium chlorate is used as the oxidant in the production of firecracker fuses for transmission or engineering blasting explosive fuses. Because of its high oxygen content, low decomposition temperature, and relatively low price, potassium chlorate has good explosive performance when mixed with combustibles. Poor stability, low melting point, high sensitivity after mixing with other combustibles, careless, careless operation will cause combustion and explosion accidents, which will cause huge losses to the country and the people, so in 2002 the State Council invented and stipulated that it is strictly forbidden to use potassium chlorate to prepare Fireworks and firecrackers, so the technicians of the manufacturers began to develop safety fuses, and some manufacturers began to use potassium perchlorate instead of potassium chlorate, but they have not yet been implemented due to unsatisfactory effects and the inability to reduce costs.

At the same time, most of the fuses are made of paper-wrapped medicines for hand rubbing fuses or machine-made fuses. The defects are: due to the cumbersome and complicated production process and the uneven degree of tightness, it is easy to cause powder wrapped in the fuses in the fuses. Uneven distribution, coupled with poor moisture-proof performance, resulting in different lengths of detonation, and there are occasional natural phenomena in the friction process, so the safety performance is poor, the production cost is high, and the efficiency is low