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Life-saving chlorate solid oxygen ignition agent and preparation method thereof

A technology of chlorate and igniter, which is applied to explosives processing equipment, explosives, offensive equipment, etc. It can solve the problems of low binding force of dry powder powder, difficulty in both performance, and easy falling off of titanium powder, so as to improve performance and manufacture process, beneficial to the purification of oxygen, and the effect of reducing the production process

Inactive Publication Date: 2016-01-27
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, these properties are difficult to have
Therefore, there are some difficulties in the manufacturing process: (1) The sensitivity is high, and there are dangers of burning and explosion in dry mixing, so many igniters are produced by mechanical pressing or manual application after wet mixing; (2) The bonding force between the dry powders is small, and it is difficult to press and form; (3) In order to be easily ignited, sometimes it is necessary to introduce some raw materials that release harmful gases, such as cobalt chloride, which will bring disadvantages to oxygen purification and affect chlorine. Overall performance of salt oxygen fixation
[0004] The igniter described in Chinese patents CN1817824A and CN103204755A has the following disadvantages: (1) the manual coating preparation process has large density differences, easy to fall off, and poor quality consistency; (2) the wet mixing method is used, and the drying process is complicated , high energy consumption and low production efficiency; (3) the titanium powder on the surface is easy to fall off; (4) when the cobalt chloride used is burned, it will produce a large amount of harmful chlorine gas, which is harmful to the purification of oxygen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Sodium chlorate 43%, potassium perchlorate 5%, iron powder 5%, titanium powder 20%, dicobalt oxide 1%, ferric oxide 4%, barium peroxide 2%, sodium bentonite 20%, the above materials After drying, weigh it in proportion and add it to the mortar, mix it manually with a glass ball stick or use an automatic mixer, pass through a 40-mesh sieve until it is evenly mixed; put the evenly mixed powder into a mold, and compact it with a hydraulic press , that is, the igniter that can reliably ignite the chlorate-fixed oxygen with an electric igniter or an impact igniter.

Embodiment 2

[0028] 40% sodium chlorate, 30% titanium powder, 5% ferric oxide, 5% barium peroxide, and 20% sodium bentonite. Weigh the above materials in proportion, add them to the mortar, and mix them evenly with a glass ball stick. Pass through a 40 mesh sieve. Until the mixture is evenly mixed; put the evenly mixed powder into the mold and compact it with a hydraulic press to obtain an ignition agent that can reliably ignite the chlorate-fixed oxygen with an electric ignition head or an impact ignition head.

Embodiment 3

[0030] Sodium chlorate 35%, potassium perchlorate 5%, iron powder 5%, titanium powder 24%, dicobalt oxide 3%, ferric oxide 2%, barium peroxide 1%, sodium bentonite 25%, the above materials After drying, weigh it in proportion and add it to the mortar, mix it manually with a glass ball stick or use an automatic mixer, pass through a 40-mesh sieve until it is evenly mixed; put the evenly mixed powder into a mold, and compact it with a hydraulic press , that is, the igniter that can reliably ignite the chlorate-fixed oxygen with an electric igniter or an impact igniter.

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PUM

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Abstract

A life-saving chlorate solid oxygen ignition agent and a preparation method thereof are provided. The ignition agent is prepared from the following raw materials by the mass percentage through a press process: 30%-60% of chlorate, 10%-40% of a metal powder, 1%-10% of metal oxide, 1-6% of barium peroxide, and 15%-35% of sodium-based bentonite. The ignition agent can better have the properties of easy ignition, high energy, low sensibility, high pressing safety and the like, and solves the following deficiencies of a conventional ignition agent: with adopting of a manual coating preparation process, the conventional ignition agent has large density difference, and is easy to fall off and relatively poor in quality consistency; a drying process is complex, energy consumption is high, and the production efficiency is relatively low; and a large amount of chlorine gas harmful to human bodies is produced and brings disadvantages to oxygen purification. After multiple times of ignition experiments, the ignition agent can be reliably ignited by electric ignition, mechanical impacting of a fire hat and heating of a resistance wire at the temperature of -40 DEG C to 80 DEG C, can successfully reliably ignite a chlorate solid oxygen main body, and ensures the generator start-up success rate.

Description

technical field [0001] The invention relates to an ignition agent for starting a life-saving chlorate-fixed oxygen charge column and a preparation process thereof, which is applicable to electric ignition or mechanical impact ignition start. Background technique [0002] Oxygen fixation is a new generation of emergency oxygen supply equipment developed based on the principle that oxygen-rich chlorate or perchlorate undergoes a thermal decomposition reaction to release oxygen. The advantages of fixed oxygen are: the life of fixed oxygen is very long, no spare parts are needed, and the guarantee is more powerful; the oxygen production is high, and under the same oxygen production conditions, the volume of fixed oxygen is only 1 / 3 of the volume of high-pressure oxygen cylinders, which is suitable for solid oxygen transportation. , storage, and layout provide convenience; the oxygen supply can be supplied according to the pre-designed oxygen supply method without adjustment, and...

Claims

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Application Information

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IPC IPC(8): C06B33/06C06B21/00
Inventor 毛胜华周兴明胡晓毛龙张毅王梦蕾向进邓康清姚俊
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY