A kind of dry powder fire extinguishing agent and preparation method thereof

A dry and high-quality technology, applied in the direction of fire prevention equipment, etc., can solve the problems of poor fire extinguishing effect, scattered by wind, and difficult to adhere, and achieve good fire extinguishing performance, high fire extinguishing efficiency and strong moisture resistance.

Active Publication Date: 2019-08-13
南通北外滩建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing dry powder fire extinguishing agent powder is used in a three-dimensional combustion type fire, it is not easy to adhere to the three-dimensional surface of the burning object, and it is easy to fall off or scatter with the help of wind, and the fire extinguishing effect is not good.

Method used

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  • A kind of dry powder fire extinguishing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 A dry powder fire extinguishing agent prepared from the following main raw materials in parts by weight (each part is 720g): 25 parts of alkali slag, 30 parts of sodium bicarbonate, 17 parts of sodium oxalate, 5 parts of marl, carbonic acid 4 parts of magnesium powder, 2 parts of silicone oil, 6 parts of gypsum, 2.5 parts of chlorinated rubber, 2 parts of zinc borate, 1 part of polybutene, and 1.5 parts of tin oxide.

[0033] The preparation method of above-mentioned dry powder fire extinguishing agent is:

[0034] (1) Take silicon nitride, add water and polymethacrylic acid, the quality of water is 1 / 6 of the mass of silicon nitride, and the weight of polymethacrylic acid is 0.03% of the mass of silicon nitride, put it into a ball mill tank, Grinding, grinding for 60 hours, sieving to remove the grinding medium, drying, grinding, and sieving;

[0035] (2) Separately pulverize alkali slag, marl, gypsum, chlorinated rubber, zinc borate, polybutene and tin oxid...

Embodiment 2

[0037] Example 2 A dry powder fire extinguishing agent prepared from the following main raw materials in parts by weight (each part is 720g): 35 parts of alkali slag, 42 parts of sodium bicarbonate, 26 parts of sodium oxalate, 12 parts of marl, carbonic acid 9 parts of magnesium powder, 5 parts of silicone oil, 14 parts of gypsum, 5 parts of chlorinated rubber, 6 parts of zinc borate, 4 parts of polybutene, and 4 parts of tin oxide.

[0038] The preparation method of above-mentioned dry powder fire extinguishing agent is:

[0039] (1) Take silicon nitride, add water and polymethacrylic acid, the quality of water is 1 / 2 of the mass of silicon nitride, and the weight of polymethacrylic acid is 0.08% of the mass of silicon nitride, put it into a ball mill tank, Grinding, grinding for 78 hours, sieving to remove the grinding medium, drying, grinding, and sieving;

[0040] (2) Separately pulverize alkali slag, marl, gypsum, chlorinated rubber, zinc borate, polybutene and tin oxide...

Embodiment 3

[0042] Example 3 A dry powder fire extinguishing agent prepared from the following main raw materials in parts by weight (each part is 720g): 27 parts of alkali slag, 33 parts of sodium bicarbonate, 20 parts of sodium oxalate, 7 parts of marl, carbonic acid 5 parts of magnesium powder, 2.5 parts of silicone oil, 8 parts of gypsum, 3 parts of chlorinated rubber, 3 parts of zinc borate, 2 parts of polybutene, and 2 parts of tin oxide.

[0043] The preparation method of above-mentioned dry powder fire extinguishing agent is:

[0044] (1) Take silicon nitride, add water and polymethacrylic acid, the quality of water is 1 / 5 of the mass of silicon nitride, and the weight of polymethacrylic acid is 0.05% of the mass of silicon nitride, put it into a ball mill tank, Grinding, grinding for 65 hours, sieving to remove the grinding medium, drying, grinding, and sieving;

[0045] (2) Separately pulverize alkali slag, marl, gypsum, chlorinated rubber, zinc borate, polybutene and tin oxide...

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Abstract

The invention discloses a dry powder extinguishing agent and a preparation method. The dry powder extinguishing agent is prepared by the following main raw materials in parts by weight: 25-35 of alkali slag, 30-42 of sodium bicarbonate, 17-26 of sodium oxalate, 5-12 of marl, 4-9 of magnesium carbonate powder, 2-5 of silicone oil, 6-14 of gypsum, 2.5-5 of chlorinated rubber, 2-6 of zinc borate, 1-4 of polybutylene, and 1.5-4 of tin oxide. The dry powder extinguishing agent is excellent in extinguishing performance of three-dimensional combustion fire, high in extinguishing efficiency, high in moisture resistance, excellent in recrudescence resistance and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a dry powder fire extinguishing agent and a preparation method. Background technique [0002] Dry powder fire extinguishing agent is a commonly used fire extinguishing agent, which has the characteristics of dryness, easy flow, good moisture resistance and anti-caking property. [0003] Widely used in oil fields, oil depots, refineries, chemical plants, chemical warehouses, ships, airports and industrial and mining enterprises. The currently used dry powder fire extinguishing agents are mainly divided into three categories: the first category uses sodium chloride, potassium chloride or barium chloride as the main raw material, and can also include organic matter, etc., and is mainly used for Class D fires. Dry sodium chloride, potassium chloride or barium chloride has poor thermal conductivity, and can absorb the heat of the burning metal surface and fix it on the metal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/00
CPCA62D1/0014
Inventor 不公告发明人
Owner 南通北外滩建设工程有限公司
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