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ABC dry powder extinguishing agent

A technology of dry powder fire extinguishing agent and cross-linking catalyst, which is applied in the direction of fire prevention equipment, etc., which can solve the problems of water absorption of dry powder fire extinguishing agent, low moisture absorption rate, and reduced fire extinguishing ability, so as to improve the dispersion and film forming effect and the film forming temperature. Low, evenly dispersed effect

Active Publication Date: 2015-05-27
NINGBO NENGLIN FIRE FIGHTING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main raw materials of ABC dry powder fire extinguishing agent are ammonium dihydrogen phosphate, sodium bicarbonate, etc., because these are substances that are relatively easy to absorb moisture, resulting in poor water repellency and low moisture absorption rate of the existing dry powder fire extinguishing agent. The moisture absorption rate is the main parameter affecting the performance and shelf life of the fire extinguishing agent. The national standard GB4066 has a moisture absorption rate of ≤3.00%. Although the existing dry powder fire extinguishing agents meet this requirement, the moisture absorption rate is not low enough in fact, and the water repellency is not good, and the moisture absorption rate is not enough. Low temperature will cause problems such as water absorption and agglomeration of dry powder fire extinguishing agent, and the shelf life will be shortened. The heat resistance, electrical insulation, hydrophobicity, oil repellency and other properties of dry powder products will be affected, so the fire extinguishing ability will also be reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] To prepare 1000kg of ABC dry powder fire extinguishing agent, weigh 500kg of ammonium dihydrogen phosphate, 250kg of ammonium sulfate, 20kg of mica powder, 20kg of activated clay, 20kg of hydrophobic white carbon black, 15kg of silicone oil, 20kg of water, 1.5kg of dibutyltin dilaurate, vinyl triethyl Oxysilane 2kg, talcum powder 151.5kg; (i.e. ammonium dihydrogen phosphate 50%, ammonium sulfate 25%, mica powder 2%, activated clay 2%, hydrophobic white carbon black 2%, silicone oil 1.5%, water 2%, two Dibutyltin Laurate 0.15%, Vinyl Triethoxysilane 0.2%, Talc 15.15%)

[0023] (1) Pre-siliconization of main raw materials: Mix 5kg of silicone oil with 500kg of ammonium dihydrogen phosphate and 250kg of ammonium sulfate;

[0024] (2) Crushing of main raw materials: the pre-silicified ammonium dihydrogen phosphate and ammonium sulfate are respectively pulverized by an ultrafine pulverizer, so that the "particle size distribution" of the pulverized ammonium dihydrogen phosph...

Embodiment 2

[0034] To prepare 1000kg of ABC dry powder fire extinguishing agent, weigh 500kg of ammonium dihydrogen phosphate, 260kg of ammonium sulfate, 30kg of mica powder, 30kg of activated clay, 20kg of hydrophobic white carbon black, 15kg of silicone oil, 20kg of water, 1.5kg of stannous octoate, and 2kg of vinyl trichlorosilane , talcum powder 121.5kg; (i.e. ammonium dihydrogen phosphate 50%, ammonium sulfate 26%, mica powder 3%, activated clay 3%, hydrophobic white carbon black 2%, silicone oil 1.5%, water 2%, stannous octoate 0.15% , vinyl trichlorosilane 0.2%, quartz sand 12.15%)

[0035] (1) Pre-siliconization of main raw materials: Mix 5kg of silicone oil with 500kg of ammonium dihydrogen phosphate and 260kg of ammonium sulfate;

[0036] (2) Crushing of main raw materials: the pre-silicified ammonium dihydrogen phosphate and ammonium sulfate are respectively pulverized by an ultrafine pulverizer, so that the "particle size distribution" of the pulverized ammonium dihydrogen pho...

Embodiment 3

[0045] Prepare 1000kg of ABC dry powder fire extinguishing agent, take by weighing 500kg of ammonium dihydrogen phosphate, 280kg of ammonium sulfate, 20kg of mica powder, 30kg of activated clay, 20kg of hydrophobic white carbon black, 20kg of silicone oil, 20kg of water, 3kg of stannous octoate, 3kg of vinyl trichlorosilane, Talc powder 104kg; (i.e. ammonium dihydrogen phosphate 50%, ammonium sulfate 28%, mica powder 2%, activated clay 3%, hydrophobic white carbon black 2%, silicone oil 2%, water 2%, dibutyltin diacetate 0.3%, Vinyl trichlorosilane 0.3%, Fluorite powder 10.4%)

[0046] (1) Pre-siliconization of main raw materials: Mix 8kg of silicone oil with 500kg of ammonium dihydrogen phosphate and 280kg of ammonium sulfate;

[0047](2) Crushing of main raw materials: the pre-silicified ammonium dihydrogen phosphate and ammonium sulfate are respectively pulverized by an ultrafine pulverizer, so that the "particle size distribution" of the pulverized ammonium dihydrogen phos...

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Abstract

The invention discloses an ABC dry powder extinguishing agent. The dry powder extinguishing agent is characterized by comprising the following components by weight percent: 50%-54% of ammonium dihydrogen phosphate, 25%-28% of ammonium sulfate, 1%-5% of mica powder, 1%-5% of activated clay, 1%-5% of hydrophobic white carbon black, 1%-3% of silicone oil, 1%-3% of water, 0.1%-0.5% of a crosslinking catalyst, 0.1%-0.5% of a curing accelerator, and 5%-20% of inert filler. The ABC dry powder extinguishing agent is capable of effectively reducing moisture absorption, and has higher heat resistance, electric insulativity, hydrophobicity and lipophobicity, the expiration date is effectively prolonged, and the extinguishing performance of the product is guaranteed.

Description

technical field [0001] The invention relates to the field of dry powder fire extinguishing agents, in particular to an ABC dry powder fire extinguishing agent. Background technique [0002] Due to its unique properties, dry powder fire extinguishing agents play an important role in the field of fire extinguishing agents today. Traditional dry powder fire extinguishing agents mainly include ABC dry powder fire extinguishing agents and BC dry powder fire extinguishing agents. The main raw materials of ABC dry powder fire extinguishing agent are ammonium dihydrogen phosphate, sodium bicarbonate, etc., because these are substances that are relatively easy to absorb moisture, resulting in poor water repellency and low moisture absorption rate of the existing dry powder fire extinguishing agent. The moisture absorption rate is the main parameter affecting the performance and shelf life of the fire extinguishing agent. The national standard GB4066 has a moisture absorption rate of ...

Claims

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Application Information

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IPC IPC(8): A62D1/06
CPCA62D1/0014A62D1/06
Inventor 俞力胡万源
Owner NINGBO NENGLIN FIRE FIGHTING EQUIP
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