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Preparation method for ABC dry powder extinguishing agent

A technology of dry powder fire extinguishing agent and coupling agent, which is applied in fire prevention equipment, etc., can solve the problems of low fire extinguishing efficiency, large smoke release, and low efficiency, and achieve high moisture-proof and anti-caking performance, low smoke release, and high efficiency.

Active Publication Date: 2015-01-28
JIANGXI JIN XIAN FIRE CHEM IND
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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 for ABC dry powder extinguishing agent

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] (1) Mix monoammonium phosphate 60g, ammonium sulfate 10g, nano silicon dioxide 5g, muscovite 1g, melamine 1g, pentaerythritol 2g, manganese chloride 0.5g, borax 0.2g, copper acetate 0.1g and vinyltriethoxy Mix 0.2g of silane in a 500ml flask, raise the temperature to 50°C, spray methylphenyl silicone oil into the above mixture with a silicone oil pump, and stir for 30min to obtain product D;

[0027] (2) Use a continuous modified coating machine to crush the product D until more than 50% of the particle size is less than 40 microns, stir at 400 rpm at 70°C for 30 minutes, dry the product at 90°C for 2 hours, cool down to 60°C, and cool After 10 minutes, the ABC dry powder fire extinguishing agent is obtained.

example 2

[0029] (1) Mix 85g of monoammonium phosphate, 27g of ammonium sulfate, 15g of nano-silica, 3g of phlogopite, 2g of melamine, 3g of pentaerythritol, 0.6g of manganese carbonate, 0.2g of borax, 0.4g of copper acetate and vinyltriethoxysilane Mix 0.25g in a 500ml flask, raise the temperature to 60°C, spray simethicone into the above mixture with a silicone oil pump, and stir for 60min to obtain product D;

[0030] (2) Use a continuous modification coating machine to crush the product D until more than 50% of the particle size is less than 40 microns, stir at 1000 rpm at 70°C for 40min, dry the product at 100°C for 3h, cool down to 60°C, and cool After 10 minutes, the ABC dry powder fire extinguishing agent is obtained.

example 3

[0032] (1) 72g of monoammonium phosphate, 18g of ammonium sulfate, 10g of nano-silica, 2g of muscovite, 1.5g of melamine, 2.5g of pentaerythritol, 0.6g of manganese chloride, 0.4g of borax, 0.25g of copper acetate and vinyl triethyl Mix 0.25g of oxysilane in a 500ml flask, raise the temperature to 55°C, spray methylphenyl silicone oil into the above mixture with a silicone oil pump, and stir for 30min to obtain product D;

[0033] (2) Use a continuous modified coating machine to crush the product D until more than 50% of the particle size is less than 40 microns, stir at 70°C for 35min at 700rpm, dry the product at 95°C for 2h, cool down to 60°C, and cool After 15 minutes, ABC dry powder fire extinguishing agent is obtained.

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Abstract

The invention discloses a preparation method for an ABC dry powder extinguishing agent. The method comprises the steps that monoammonium phosphate, ammonium sulfate, nanosilicon dioxide, mica, melamine, pentaerythritol, a manganese compound, borax, copper acetate and a coupling agent are mixed, silicone oil is injected into the mixture at the temperature ranging from 50 DEG C to 60 DEG C to obtain a product D, the product D is smashed through a continuous modification mulch applicator until the diameter of more than 50% of particles is smaller than 40 micrometers, stirring is carried out at high speed at the temperature being 70 DEG C for 30 min to 40 min, drying is carried out at the temperature ranging from 90 DEG C to 100 DEG C for 2h to 3h to obtain a product, the temperature is decreased to be 60 DEG C, cooling is carried out for 10-20 min, and then the ABC dry powder extinguishing agent is obtained. The obtained ABC dry powder extinguishing agent is high in efficiency and small in smog release amount 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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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/06
CPCA62D1/0014
Inventor 易小明
Owner JIANGXI JIN XIAN FIRE CHEM IND
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