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Preparation method of ABC dry powder extinguishing agent

A dry powder fire extinguishing agent, monoammonium phosphate technology, applied in fire protection equipment and other directions, can solve the problems of low fire extinguishing efficiency, large smoke release, low efficiency, etc., and achieve the effect of high moisture-proof and anti-caking performance, reduced smoke release and high efficiency

Inactive Publication Date: 2015-03-25
袁福德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this fire extinguishing principle is less effective in extinguishing flames, and usually requires more fire extinguishing agents to extinguish the fire
Therefore, the existing ABC dry powder fire extinguishing agents generally have the defects of low fire extinguishing efficiency, serious pollution, and large smoke release.

Method used

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  • Preparation method of ABC dry powder extinguishing agent

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] (1) Add 50g of monoammonium phosphate, 9g of ammonium sulfate, 4g of nano-silica, 2g of sodium bentonite, 1g of muscovite, 1g of melamine, 0.1g of carbon nanotubes, 3g of graphite, 1g of ammonium polyphosphate and vinyl triethoxy Mix 0.2g of methyl silane in a 250ml three-necked flask according to the weight ratio, raise the temperature of the mixture to 70°C, spray methylphenyl silicone oil into the above mixture with a silicone oil pump, add 0.3g of manganese hypophosphite, 0.4g of phosphomolybdic acid, di 0.2 g of pyridine nucleotide phosphate and 0.1 g of dihydroxybismuth nitrate were stirred at 60°C for 30 minutes to obtain product D;

[0024] (2) Use a continuous modification coating machine to crush the product D until more than 80% of the particle size is less than 30 microns, stir at 300rpm at 60°C for 20min, dry the product at 90°C for 2h, cool down to 30°C, and cool In 10 minutes, ABC dry powder fire extinguishing agent is obtained;

[0025] Carbon nanotubes...

example 2

[0027] (1) Add 75g of monoammonium phosphate, 12g of ammonium sulfate, 10g of nano-silica, 3g of calcium-based bentonite, 3g of phlogopite, 1.5g of melamine, 0.3g of carbon nanotubes, 5g of graphite, 7g of ammonium polyphosphate and vinyltrimethoxy Mix 0.3g of silane in a 250ml three-necked flask according to the weight ratio, raise the temperature of the mixture to 90°C, spray simethicone into the above mixture, add 0.5g of manganese hypophosphite, 0.7g of phosphomolybdic acid, and pyridine nucleoside diphosphate 0.7 g of acid and 0.2 g of dihydroxybismuth nitrate were stirred and reacted at 90°C for 50 minutes to obtain product D;

[0028] (2) Use a continuous modified coating machine to crush the product D until more than 80% of the particle size is less than 30 microns, stir at 60°C at 1000rpm for 40min, dry the product at 100°C for 4h, cool down to 30°C, and cool After 20 minutes, ABC dry powder fire extinguishing agent is obtained;

[0029] Carbon nanotubes are double-w...

example 3

[0031] (1) Add 62g of monoammonium phosphate, 10.5g of ammonium sulfate, 7g of nano-silica, 2.5g of hydrogen-based bentonite, 2g of muscovite, 1.2g of melamine, 0.2g of carbon nanotubes, 4g of graphite, 4g of ammonium polyphosphate and vinyl Mix 0.25g of triethoxysilane in a 250ml three-necked bottle according to the weight ratio, heat the mixture to 80°C, spray methylphenyl silicone oil into the above mixture, add 0.4g of manganese hypophosphite, 0.5g of phosphomolybdic acid, 0.5 g of pyridine nucleotide phosphate and 0.15 g of dihydroxybismuth nitrate were stirred and reacted at 75°C for 40 minutes to obtain product D;

[0032] (2) Use a continuous modification coating machine to crush the product D until more than 80% of the particle size is less than 30 microns, stir at 60°C at 650rpm for 30min, dry the product at 95°C for 3h, cool down to 30°C, and cool After 15 minutes, ABC dry powder fire extinguishing agent is obtained;

[0033] Carbon nanotubes are multi-walled carbo...

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Abstract

The invention discloses a preparation method of an ABC dry powder extinguishing agent. The preparation method comprises the following steps: mixing monoammonium phosphate, ammonium sulfate, nano-silica, bentonite, mica, melamine, carbon nano tubes, graphite, ammonium polyphosphate and a coupling reagent in a weight ratio; heating a mixture to 70-90 DEG C, and spraying silicon oil into the mixture; adding manganese hyphosphate, phosphomolybdic acid, diphosphopyridine nucleotide and bismuthyl nitrate, and stirring at 60-90 DEG C for 30-50 minutes, as to obtain a product D; crushing the product D by virtue of a continuous modified coating machine until the particle size of over 80% of particles is smaller than 30 microns, stirring at 60 DEG C for 20-40 minutes at the speed of 300-1,000rpm, and drying the obtained product at 90-100 DEG C; and cooling to 30 DEG C for 10-20 minutes, so as to obtain the ABC dry powder extinguishing agent. The obtained dry powder extinguishing agent is high in efficiency and low in smoke emission during extinguishment.

Description

technical field [0001] The invention relates to a preparation method of a fire extinguishing agent, in particular to a preparation method of an ABC dry powder fire extinguishing agent. Background technique [0002] Fire extinguishing agent refers to the substance that can effectively destroy the burning conditions and stop the burning. According to its state characteristics, it can be divided into three categories: liquid fire extinguishing agent, solid fire extinguishing agent and gas fire extinguishing agent. Solid fire extinguishing agents mainly include: aerosol fire extinguishing agent, dry powder fire extinguishing agent such as sodium bicarbonate dry powder, sodium chloride dry powder, potassium chloride dry powder, ammonium phosphate dry powder, etc.; [0003] In 1982, Shanghai Fire Research Institute developed ABC dry powder fire extinguishing agent and put it into production in Shanghai Fire Chemical Factory. The fire extinguishing agent is mainly based on ammoni...

Claims

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Application Information

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IPC IPC(8): A62D1/06
CPCA62D1/0014A62D1/06
Inventor 袁福德
Owner 袁福德
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