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ABC superfine dry powder extinguishing agent and preparation method thereof

A technology of ultra-fine dry powder and fire extinguishing agent, applied in fire protection equipment and other directions, can solve the problems of complex dry powder fire extinguishing agent process, damage to the health of fire personnel, and fire extinguishing agent failure, etc., and achieve the effect of not easy to agglomerate, low hygroscopicity, and concentrated jet.

Active Publication Date: 2014-12-10
国兴一实安防科技实业(浙江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the ultra-fine dry powder fire extinguishing agent only uses ammonium dihydrogen phosphate as the base material, it cannot meet the requirements of GA578-2005 for class A fire extinguishing efficiency. Therefore, the ABC ultra-fine dry powder fire extinguishing agent sold in the market is mainly based on ammonium dihydrogen phosphate and ammonium sulfate Composite materials are used as the base material to meet the requirements of GA578-2005 for ultra-fine dry powder fire extinguishing agents
However, ammonium dihydrogen phosphate and ammonium sulfate have hygroscopicity, and after absorbing moisture, they will solidify into blocks, which makes the process of preparing dry powder fire extinguishing agent complicated. Make the fire extinguishing agent ineffective; when the added ammonium sulfate is heated and decomposed to extinguish the fire, it will produce toxic flue gas nitrogen oxides and sulfides, which will pollute the environment and damage the health of fire personnel

Method used

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  • ABC superfine dry powder extinguishing agent and preparation method thereof
  • ABC superfine dry powder extinguishing agent and preparation method thereof
  • ABC superfine dry powder extinguishing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation of ABC superfine dry powder fire extinguishing agent specifically comprises the following steps:

[0025] Step 1, each raw material component is taken by weighing 1 ton of total raw material: 30kg of mica powder, 50kg of hydrophobic fumed silica, 7kg of hydrogen-containing silicone oil, 5kg of water, 5kg of gasoline, 7kg of high-boiling silicone oil, The remainder is ammonium metaphosphate.

[0026] Step 2, drying mica powder and ammonium metaphosphate, mixing and stirring evenly to obtain intermediate material A.

[0027] Step 3, mixing and stirring hydrogen-containing silicone oil water and gasoline to obtain emulsion B.

[0028] Step 4: Add the intermediate material A into the high-speed mixer, raise the temperature of the material to 55°C while stirring, atomize the emulsion B and spray it into the stirred material, stir at high speed for 20 minutes, change to medium speed stirring, and raise the temperature to control the temperature of the materia...

Embodiment 2

[0034] The preparation of ABC superfine dry powder fire extinguishing agent specifically comprises the following steps:

[0035] Step 1, each raw material component is taken by weighing 1 ton of total raw material: 50kg of mica powder, 70kg of hydrophobic fumed silica, 12kg of hydrogen-containing silicone oil, 12kg of water, 12kg of gasoline, 12kg of high-boiling silicone oil, The remainder is ammonium metaphosphate.

[0036] Step 2, drying mica powder and ammonium metaphosphate, mixing and stirring evenly to obtain intermediate material A.

[0037] Step 3, mixing and stirring hydrogen-containing silicone oil water and gasoline to obtain emulsion B.

[0038] Step 4: Add the intermediate material A into the high-speed mixer, raise the temperature of the material to 60°C while stirring, atomize the emulsion B and spray it into the high-speed stirring material, stir at a high speed for 30 minutes, change to a medium-speed stirring, and control the temperature of the material Th...

Embodiment 3

[0044] The preparation of ABC superfine dry powder fire extinguishing agent specifically comprises the following steps:

[0045] Step 1, each raw material component is taken by weighing 1 ton of total raw material: 40kg of mica powder, 60kg of hydrophobic fumed silica, 9kg of hydrogen-containing silicone oil, 9kg of water, 9kg of gasoline, 9kg of high-boiling silicone oil, The remainder is ammonium metaphosphate.

[0046] Step 2, drying mica powder and ammonium metaphosphate, mixing and stirring evenly to obtain intermediate material A.

[0047] Step 3, mixing and stirring hydrogen-containing silicone oil water and gasoline to obtain emulsion B.

[0048] Step 4: Add the intermediate material A into the high-speed mixer, raise the temperature of the material to 58°C while stirring, atomize the emulsion B and spray it into the high-speed stirring material, stir at a high speed for 40 minutes, change to a medium-speed stirring, and control the temperature of the material The te...

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Abstract

The invention relates to the field of fire fighting and extinguishing and discloses an ABC superfine dry powder extinguishing agent and a preparation method thereof. The extinguishing agent comprises the following raw materials by mass percent: 3-5% of mica powder, 5-7% of hydrophobic fumed silica, 0.7-1.2% of hydrogen-containing silicone oil, 0.5-1.2% of water, 1-1.2% of gasoline, 0.7-1.2% of high-boiling silicone oil and the balance of ammonium metaphosphate. As 90% of particle sizes of the prepared ABC superfine dry powder extinguishing agent are less than or equal to 20mu m, various performance indexes of the ABC superfine dry powder extinguishing agent meet the requirements of GA578-2005. The ABC superfine dry powder extinguishing agent has good flooding extinguishing effects and is more beneficial to rapidly extinguishing ABC fires in open and semi-open space.

Description

technical field [0001] The invention relates to the field of fire extinguishing, in particular to an ABC superfine dry powder fire extinguishing agent and a preparation method thereof. Background technique [0002] At present, the ABC dry powder fire extinguishing agents sold on the market are mainly used for fire extinguishing of Class A, Class B and Class C fires. If the ultra-fine dry powder fire extinguishing agent only uses ammonium dihydrogen phosphate as the base material, it cannot meet the requirements of GA578-2005 for class A fire extinguishing efficiency. Therefore, the ABC ultra-fine dry powder fire extinguishing agent sold in the market is mainly based on ammonium dihydrogen phosphate and ammonium sulfate Composite materials as the base material can meet the requirements of ultrafine dry powder fire extinguishing agent GA578-2005. However, ammonium dihydrogen phosphate and ammonium sulfate have hygroscopicity, and after absorbing moisture, they will solidify i...

Claims

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Application Information

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IPC IPC(8): A62D1/00
Inventor 胡新赞王虎儒
Owner 国兴一实安防科技实业(浙江)有限公司
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