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Efficient fire-extinguishing chemical of superfine powder and its preparing process

A technology of ultra-fine powder and fire extinguishing agent, which is applied in the direction of fire prevention equipment, etc., can solve the problems of easy moisture absorption and agglomeration, low specific surface area, poor dispersibility, etc., and achieve excellent electrical insulation performance, simple production process, and easy-to-obtain raw materials Effect

Inactive Publication Date: 2002-07-03
徐官庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary dry powder fire extinguishing agent is the most used fire extinguishing agent at present. Commonly used materials are sodium bicarbonate dry powder, potassium salt dry powder, ammonium phosphate dry powder, etc. The average particle size of commonly used dry powder is about 40 μm. These ordinary dry powder fire extinguishing agents have large particle size and specific surface area Low, easy to absorb moisture, the particle size is not easy to make small, although the fire extinguishing effect is good, but because of its large particle size, easy to absorb moisture and agglomerate, poor dispersion, limited fire extinguishing ability, the effect is not as good as halon fire extinguishing agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Weigh 10kg of raw materials according to the following formula

[0032] Phosphamide salt fire retardant 65% Silica dispersant 10%

[0033] Stearate anti-humidity agent 10% Talc grinding aid 8%

[0034] Mica antistatic agent 7%;

[0035] 2. Mix the raw materials;

[0036] 3. Grinding by jet milling method;

[0037] 4. Fill it with air;

[0038] 5. Fill the filler into the powder;

[0039] 6. Sealed storage.

Embodiment 2

[0041] 1. Weigh 10kg of raw materials according to the following formula

[0042] Phosphamide salt fire retardant 95% Silica dispersant 2%

[0043] Stearate moisture-proof agent 2% Talc grinding aid 0.5%

[0044] Mica antistatic agent 0.5%;

[0045] 2. Mix the raw materials;

[0046] 3. Grinding by jet milling method;

[0047] 4. Fill it with air;

[0048] 5. Fill the filler into the powder;

[0049] 6. Sealed storage.

Embodiment 3

[0051] 1. Weigh 10kg of raw materials according to the following formula

[0052] Phosphamide salt fire retardant 85% Silica dispersant 5%

[0053] Stearate Moisture Resistant 5% Talc Grinding Aid 2.5%

[0054] Mica antistatic agent 2.5%;

[0055] 2. Mix the raw materials;

[0056] 3. Grinding by jet milling method;

[0057] 4. Fill it with air;

[0058] 5. Fill the filler into the powder;

[0059] 6. Sealed storage.

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Abstract

An efficient fire-extinguishing agent of superfine powder is prepared from ammonium phosphate, SiO2 and stearate. Its advantages include small granularity less than 10 microns, large specific surface area, high flowability and dispersity, high fire extinguishing effect, no poison and no pollution.

Description

technical field [0001] The invention relates to the improvement of the fire extinguishing agent, in particular to an ultrafine powder high-efficiency fire extinguishing agent and its preparation method. technical background [0002] Halon fire extinguishing agent is favored by people for its high efficiency, cleanness and total flooding. However, the halon fire extinguishing agent has a strong destructive effect on the atmospheric ozone layer and seriously affects the earth's environment. International and domestic are looking for new fire extinguishing agent to replace halon fire extinguishing agent. Ordinary dry powder fire extinguishing agent is the most used fire extinguishing agent at present. Commonly used materials are sodium bicarbonate dry powder, potassium salt dry powder, ammonium phosphate dry powder, etc. The average particle size of commonly used dry powder is about 40 μm. These ordinary dry powder fire extinguishing agents have large p...

Claims

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Application Information

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IPC IPC(8): A62D1/02
Inventor 徐官庆
Owner 徐官庆
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