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Oxygen candle

An oxygen candle and candle body technology, which is applied in the field of high-efficiency oxygen-releasing oxygen candles, can solve the problems of easy moisture absorption of the formula, slow combustion, affecting the oxygen production speed of the oxygen candle, etc., and achieves improved startup reliability, reasonable formula, and stable structure. Effect

Active Publication Date: 2018-05-29
SHAANXI STAR EXPLOSION SAFETY POLYTRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, expensive lithium peroxide reagents are usually added to the formula of solid chemical oxygen candles at home and abroad, which makes the formula easy to absorb moisture and slow down the combustion, which in turn affects the oxygen production speed of the oxygen candle, and the decomposition temperature is above 200 degrees.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Absorb flammable layer 10g altogether, each component ratio is (mass percentage): chlorate 0.2%, magnesium powder 10%, barium chromate 85%, kaolin 4.8%;

[0019] The heating element layer is 52.1g, and the ratio is (mass percentage) 73% of sodium chlorate, 4% of tricobalt tetroxide, 6% of manganese dioxide, 5% of iron powder, 7% of cobalt powder, and 5% of kaolin.

[0020] Main candle body layer 300.05g, the ratio is (mass percentage) sodium chlorate 95%, potassium perchlorate 0.5%, tricobalt tetroxide 0.7%, manganese dioxide 0.8%, cobalt powder 1.0%, kaolin 2.0%. First, dry the chlorate in an infrared oven at 120°C for 30-60 minutes, then use a ball mill and a double-screw mixer to mix it evenly with other weighed materials, and add a certain amount of NaCrO with a concentration of 0.5-2%. 4 The aqueous solution is fully mixed, demolded and pressed into H=23mm oxygen-generating drug block; dried in an infrared drying oven at 120°C for 1 hour.

[0021] Experimental r...

Embodiment 2

[0025] Absorb flammable layer 15g, the ratio is (mass percentage): chlorate 0.5%, magnesium powder 10%, barium chromate 84.5%, kaolin 5%;

[0026] The heating body layer is 59.12g, and the ratio is (mass percentage) 76% of sodium chlorate, 5% of tricobalt tetroxide, 5% of manganese dioxide, 3% of iron powder, 6% of cobalt powder, and 5% of kaolin.

[0027] Main candle body layer 285g, ratio is (mass percentage) sodium chlorate 95.5%, potassium perchlorate 0.7%, tricobalt tetroxide 0.7%, manganese dioxide 0.9%, cobalt powder 0.5%, kaolin 1.7%. First, dry the chlorate in an infrared oven at 120°C for 30-60 minutes, then use a ball mill and a double-screw mixer to mix it evenly with other weighed materials, and add a certain amount of NaCrO with a concentration of 0.5-2%. 4 The aqueous solution is fully mixed, demolded and pressed into H=23mm oxygen-generating drug block; dried in an infrared drying oven at 120°C for 1 hour.

[0028] Experimental results: the oxygen candle can...

Embodiment 3

[0032] Absorb flammable layer 10g, the ratio is (mass percentage): zirconium powder 8%, barium chromate 83%, kaolin 9%;

[0033] The heating body layer is 48.5g, and the ratio is (mass percentage) 77% of sodium chlorate, 6% of tricobalt tetroxide, 5.5% of manganese dioxide, 4% of iron powder, 2.5% of magnesium powder, and 5% of kaolin.

[0034] The main candle body layer is 300.01g, and the ratio is (mass percentage) sodium chlorate 94.4%, potassium perchlorate 1.0%, tricobalt tetroxide 0.9%, manganese dioxide 1.2%, magnesium powder 1.0%, kaolin 1.4%. First, dry the chlorate in an infrared oven at 120°C for 30-60 minutes, then use a ball mill and a double-screw mixer to mix it evenly with other weighed materials, and add a certain amount of NaCrO with a concentration of 0.5-2%. 4 The aqueous solution is fully mixed, demolded and pressed into H=23mm oxygen-generating drug block; dried in an infrared drying oven at 120°C for 1 hour.

[0035] Experimental results: the oxygen c...

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Abstract

The invention discloses an oxygen candle which comprises an absorption inflammable layer, a heating layer and a main candle layer, wherein the heating layer is arranged between the absorption inflammable layer and the main candle layer; the main candle layer consists of the following components in percentage by mass: 90-96% of chlorate, 1.5-5% of a catalyst, 0-3% of fuel, 1.5-2.5% of an adhesive and 0.5-1.5% of a stabilizing agent; the heating layer consists of the following components in percentage by mass: 70-80% of chlorate, 5-15% of a catalyst, 5-12% of fuel and 3.0-6.0% of an adhesive; the absorption inflammable layer consists of the following components in percentage by mass: 5-15% of fuel, 80-90% of barium chromate, 3-5% of an adhesive and 0-1% of chlorate. By adjusting the types and ratios of the catalysts, the decomposition temperature of an oxygen generation agent, namely the chlorate, is reduced, oxygen can be relatively easily released under a low temperature condition, then the amount of elegant metals in the absorption inflammable layer is reduced, and meanwhile due to addition of a flame retardant, the release velocity of energy of the elegant metals is controlled.

Description

technical field [0001] The invention relates to a solid chemical oxygen source formula, in particular to a high-efficiency oxygen release candle. technical background [0002] The solid chemical oxygen device is an emergency rescue device developed by the principle of generating oxygen through thermal decomposition of oxychlorate or perchlorate under the action of a catalyst. Its characteristics are: long storage time and small volume; high oxygen density, which is three times that of compressed oxygen of the same volume; oxygen candles are stored and used under normal pressure, and there is no danger of high pressure; the solid chemical oxygen device is maintenance-free, which greatly reduces maintenance costs . As a life-saving emergency oxygen source, solid chemical oxygen devices have been widely used in refuge places, mines, aerospace, submarines, medical and civil applications. [0003] At present, expensive lithium peroxide reagents are usually added to the formula ...

Claims

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Application Information

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IPC IPC(8): C01B13/02
CPCC01B13/0218
Inventor 文新国马爱平
Owner SHAANXI STAR EXPLOSION SAFETY POLYTRON TECH INC
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