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Anti-after-combustion composite dry powder extinguishing agent and preparation method thereof

A dry powder fire extinguishing agent and anti-reburning technology, which is applied in fire prevention equipment and other fields, can solve the problems of limited space for improving the comprehensive performance of dry powder fire extinguishing agents, and achieve good practical application value, easy spraying, and excellent flow performance

Active Publication Date: 2020-08-28
中国人民解放军92228部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned dry powder patents are all based on the design idea of ​​oil-repellent treatment of dry powder particles, and the resulting dry powder fire extinguishing agent has limited room for improvement in overall performance

Method used

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  • Anti-after-combustion composite dry powder extinguishing agent and preparation method thereof
  • Anti-after-combustion composite dry powder extinguishing agent and preparation method thereof
  • Anti-after-combustion composite dry powder extinguishing agent and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] For the anti-reburning composite dry powder fire extinguishing agent, according to the formula in Table 1, mix all raw materials according to the corresponding ratio, run in a high-speed compound machine at 500 rpm for 12 minutes, and then compound at a high speed of 2500 rpm for 40 minutes, during which the dry powder is controlled The temperature does not exceed 85-95°C, shut down the machine, cool to room temperature, and pack it out.

Embodiment 2

[0026] For the anti-reburning compound dry powder fire extinguishing agent, according to the formula in Table 1, mix all raw materials according to the corresponding ratio, run in a high-speed compound machine at 500 rpm for 15 minutes, then compound at a high speed of 3500 rpm for 25 minutes, during which the dry powder should be controlled The temperature does not exceed 85-95°C, shut down the machine, cool to room temperature, and pack it out.

Embodiment 3

[0028] For the anti-reburning compound dry powder fire extinguishing agent, according to the formula in Table 1, mix all raw materials according to the corresponding ratio, run in a high-speed compound machine at 800 rpm for 10 minutes, and then compound at a high speed of 3000 rpm for 40 minutes, during which the dry powder should be controlled The temperature does not exceed 85-95°C, shut down the machine, cool to room temperature, and pack it out.

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Abstract

The invention discloses an anti-after-combustion composite dry powder extinguishing agent and a preparation method thereof. The fire extinguishing agent comprises, by mass, 50%-75% of fire extinguishing base materials, 8%-30% of oil absorption particles, 8%-20% of heat insulation flame retardant particles and 3%-10% of nanometer auxiliaries. The oil absorption materials and the heat insulation materials are introduced to assist in fire extinguishing, and the problem of after-combustion of dry powder after fire extinguishing is effectively prevented; traditional dry powder assistants such as silicone oil, stearate and mica talcum powder are abandoned, the nano additive is introduced, the micro-nano composite dry powder is endowed with excellent water and oil repellency and flowability through a micro-nano composite design and a preparation process, the fire extinguishing effect of the nano material is enhanced, the fire extinguishing efficiency of the dry powder fire extinguishing agentis improved, and the danger and the difficulty of fire scene cleaning are reduced.

Description

technical field [0001] The invention belongs to the field of fire protection, and in particular relates to a novel fire extinguishing agent and a preparation method thereof. Background technique [0002] Dry powder fire extinguishing agent has the advantage of being fast and efficient in extinguishing oil fires, and is often used to quickly extinguish initial fires. The biggest disadvantage of dry powder extinguishing oil fire is the problem of re-ignition after fire extinguishing. The essence of oil fire combustion is the combustion of oil vapor, because the dry powder fire extinguishing mechanism is chemical fire extinguishing, which stops combustion by blocking the combustion reaction chain and has no cooling effect; in addition, the surface of ordinary dry powder is hydrophobic and lipophilic, and its specific gravity is greater than that of oil. It sinks into the bottom of the oil surface and cannot continue to play the role of fire extinguishing, causing the combustio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00
CPCA62D1/0014
Inventor 王戈赵永涛冯亚菲吴进煌王义冬张海永褚广哲臧勃林殷文昌杨航
Owner 中国人民解放军92228部队