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Ignition drug for lifesaving solid oxygen and preparation method thereof

A technology of igniting powder and powder, which is applied to explosives processing equipment, explosives, offensive equipment, etc. It can solve the problems of poor quality consistency, large density difference, and low production efficiency, and achieve strong consistency, large impact, and improved production. The effect on quality and productivity

Active Publication Date: 2013-07-17
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The igniter described in the Chinese patent CN1817824A adopts a manual smearing preparation process, which has the problems of large density difference, easy falling off, poor quality consistency and low production efficiency.

Method used

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  • Ignition drug for lifesaving solid oxygen and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Sodium chlorate 43%, potassium perchlorate 21.5%, iron powder 14%, titanium powder 5%, cobalt chloride 9%, ferric oxide 5%, barium peroxide 2%, mica powder 0.5%, and the above materials are proportionally After weighing, add it to a mortar, mix it by hand with a glass ball stick or use an automatic mixer, and pass it through a 40-mesh sieve. Add 5% distilled water to the mixed material, and mix evenly for the second time. Put the igniter powder mixed for the second time into the concave drug groove of the powder column, compact it, and evenly spread 0.03g / cm2 on the surface of the igniter powder 2 Titanium metal powder is pressed manually or by a press through a limit pressure rod. The density of the igniter for life-saving oxygen fixation after compression is 1.55g / cm 3 . After the powder column is dried in an oven at 80°C, an electric ignition head is assembled. Take three rounds and keep them warm in incubators at -20°C, 25°C, and 80°C for 6 hours, and then use t...

Embodiment 2

[0029] Sodium chlorate 40%, potassium perchlorate 21.5%, iron powder 14%, titanium powder 8%, cobalt chloride 8%, ferric oxide 6%, barium peroxide 1.7%, mica powder 0.8%, the above materials are mixed in proportion After weighing, add it to a mortar, mix evenly with a glass ball stick, and pass through a 40-mesh sieve. Add 4% distilled water to the mixed material, and mix evenly for the second time. Put the igniter powder mixed for the second time into the concave drug groove of the powder column, compact it, and evenly spread 0.04g / cm2 on the surface of the igniter powder 2 Metal titanium powder is manually pressed through the limit pressure rod. The density of the igniter for life-saving oxygen fixation after compression is 1.60g / cm 3 . After the powder column is dried in an oven at 80°C, it is equipped with a mechanical impact primer. Take three rounds and keep them warm in incubators at -20°C, 25°C, and 80°C for 6 hours, then pull out the plug, and the striker hits the...

Embodiment 3

[0031] Sodium chlorate 32%, potassium perchlorate 29.5%, iron powder 14%, titanium powder 8%, cobalt chloride 8%, ferric oxide 4.5%, barium peroxide 3%, mica powder 1%, and the above materials are proportionally After weighing, add it to a mortar, mix evenly with a glass ball stick, and pass through a 40-mesh sieve. Add 4.5% distilled water to the mixed material, and mix evenly for the second time. Put the igniter powder mixed for the second time into the concave drug groove of the powder column, compact it, and evenly spread 0.05g / cm2 on the surface of the igniter powder 2 Metal titanium powder is manually pressed through the limit pressure rod. The density of the igniter for life-saving oxygen fixation after compression is 1.65g / cm 3 . After the powder column is dried in an oven at 80°C, an electric ignition head is assembled. Take three rounds and keep them warm in incubators at -20°C, 25°C, and 80°C for 6 hours, and then use the battery to ignite, which can reliably ig...

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Abstract

The invention provides an ignition drug for lifesaving solid oxygen and a preparation method thereof. The ignition drug is prepared from the following raw materials by mass percent by using a compacting technology: 32-44 % of sodium chlorate, 20-30 % of potassium perchlorate, 14-18 % of iron powder, 4-8 % of titanium powder, 5-12 % of cobalt chloride, 3-7 % of ferric oxide, 0.5-5 % of barium peroxide and 0.1-1.5 % of mica powder. The method solves problems of poor technology quality and low efficiency existing in prior art. According to the invention, electric igniter or ignition by mechanically knocking primer is employed, and thus energy is relatively high, impact force is large and solid-oxygen columns can be reliably ignited; residues do not flow after the ignition drug burns, thereby ensuring product safety; both high and low temperature performances satisfy corresponding product technology standards, remote automatic control is realized to start solid oxygen, and production quality and production efficiency of the ignition drug can be improved.

Description

technical field [0001] The invention relates to an igniter used for starting a life-saving oxygen-fixed powder column and a preparation process thereof, which is applicable to electric ignition or mechanical 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. Under the condition of producing the same oxygen, the volume of the oxygen candle is only 1 / 3 of the volume of the high-pressure oxygen cylinder, which is suitable for the transportation of fixed oxygen. , storage, and layout provide convenience; oxygen can be supplied according to the pre-designed oxygen supply method without adjustment, and the use is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/06C06B33/12C06B21/00
Inventor 周兴明毛胜华胡晓徐浩星毛龙张毅
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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