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Ammonium phosphate ultra-fine dry powder extinguishing agent and preparation thereof

A technology of dry powder fire extinguishing agent and ammonium phosphate salt, which is applied in the direction of fire prevention equipment, etc., to achieve the effect of low cost, wide range and good fire extinguishing effect

Inactive Publication Date: 2008-08-13
KUNMING TAIKANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ammonium phosphate superfine dry powder fire extinguishing agent product produced by chemical fertilizer wet process monoammonium phosphate has not been reported in open literature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare the ammonium phosphate superfine dry powder fire extinguishing agent according to the following raw material weight ratio and steps:

[0030] 1) Take 500 kg of common ammonium phosphate dry powder fire extinguishing agent, 80 kg of activated clay, 50 kg of silicified white carbon black, 80 kg of mica, 290 kg of calcium carbonate, and 9 kg of silicone oil;

[0031] 2) Mix the above ingredients and dehydrate with a hot air flow at a constant temperature of 90-130°C until the water content is below 0.15%;

[0032] 3) Grinding to less than 10 microns.

Embodiment 2

[0034] Prepare the ammonium phosphate superfine dry powder fire extinguishing agent according to the following raw material weight ratio and steps:

[0035] 1) Take 900 kg of common ammonium phosphate dry powder fire extinguishing agent, 15 kg of activated clay, 50 kg of silicified white carbon black, 25 kg of mica, 10 kg of calcium carbonate, and 9 kg of silicone oil;

[0036]2), 3) steps are identical with embodiment 1.

Embodiment 3

[0038] Prepare the ammonium phosphate superfine dry powder fire extinguishing agent according to the following raw material weight ratio and steps:

[0039] 1) Get 700 kg of wet-process monoammonium phosphate, 80 kg of activated clay, 100 kg of mica, 80 kg of silicified white carbon black, 40 kg of calcium carbonate, and 9 kg of silicone oil.

[0040] 2), 3) steps are identical with embodiment 1.

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Abstract

The present invention provides a ammonium phosphate salt superfine dry powder extinguishing agent and its preparing method. The proportioning by weight of material is common ammonium phosphate salt powder 600-850kg, active carclazyte 15-80kg, silicified white carbon black 40-100kg, mica 25-100kg, calcium carbonate 10-300kg, silicon oil 8-15kg; alternatively, wet-process monoammonium phosphate 700-900kg, active carclazyte 15-80kg, silicified white carbon black 40-100kg, mica 25-100kg, calcium carbonate 10-300kg, silicon oil 8-15kg; the granularity of the product is below 20 mu m. The fire extingushing method has a better effect and wide range. Type A solid matter fire, type B liquid matter fire, type C gas matter fire and type E appliance fire are all put out under the state of closing and semi-closing, since extinguishing agent has a small grain diameter, specific surface is doubled, particulates can not gather after being silicified, extinguishing agent has a better liquidity, improved jet performance, quick pervasion, and the wet-process monoammonium phosphate contains sulfur and ammonium, generating N by heating, greatly enhances the extinguishing effect, about 6-10 times of the common powder extinguishing agent. The extinguishing agent also energy conservation and has a lower cost.

Description

technical field [0001] The invention relates to the technical field of fire fighting and fire extinguishing, in particular to a preparation method of an ammonium phosphate superfine dry powder fire extinguishing agent (ABC superfine dry powder fire extinguishing agent for short). Background technique [0002] Halon fire extinguishing agent has always occupied an important position in the fire protection industry because of its low cost and high fire extinguishing efficiency. However, its main component is haloalkane, which will cause serious damage to the atmospheric ozone layer after use, so it will be discontinued within a time limit. It is particularly urgent to research and develop alternatives to the green and environment-friendly Halon fire extinguishing agent. Ammonium phosphate dry powder fire extinguishing agent has become one of the most ideal substitutes for Halon fire extinguishing agent because of its high fire extinguishing efficiency and environmental friendli...

Claims

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Application Information

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IPC IPC(8): A62D1/06
Inventor 林向芳
Owner KUNMING TAIKANG GROUP
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