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Small-grain-diameter ABC dry powder extinguishing agent and preparing method thereof

A dry powder fire extinguishing agent, small particle size technology, applied in fire protection equipment and other directions, can solve the problems of not easy to suspend in the fire area, large particle size of dry powder, low efficiency, etc. low effect

Inactive Publication Date: 2018-02-02
BENGBU LONGTAI FIRE FIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the ABC superfine dry powder fire extinguishing agent based on monoammonium phosphate is not easy to be suspended in the fire area due to the large particle size of the dry powder, and the efficiency is low, and the dosage is large, so it needs to be solved urgently.

Method used

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  • Small-grain-diameter ABC dry powder extinguishing agent and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of small particle size ABC dry powder fire extinguishing agent includes the following steps:

[0021] S1. Stir 60g nano calcium carbonate, 4g stearic acid, and 2g myristic acid for 20min at a stirring speed of 1600r / min. Add 16g microcrystalline paraffin and 80g water to mix evenly, add 10g sodium oleate sulfate under stirring, and heat to Stir at 90°C for 45 minutes, filter, wash, dry, and crush to obtain the first material;

[0022] S2. Mix 100g of monoammonium phosphate, 40g of potassium dihydrogen phosphate, 10g of potassium perchlorate, 12g of glass fiber, and 6g of the first material uniformly, and homogenize for 20 minutes at a homogenization pressure of 4kPa to obtain the second material;

[0023] S3. Mix 4g of hydrogen-containing silicone oil and 6g of water evenly, then add 8g of acetone and stir evenly to obtain a mixture; spray the mixture into 100g of the second material in a stirring state, heat up to 88℃ and mix evenly, remove the water , A...

Embodiment 2

[0025] A preparation method of small particle size ABC dry powder fire extinguishing agent includes the following steps:

[0026] S1. Stir 80g nano calcium carbonate, 2g stearic acid, 4g myristic acid for 10min at a stirring speed of 2000r / min, add 8g microcrystalline paraffin, 120g water and mix uniformly, add 4g sodium oleate sulfate under stirring, and heat to Stir at 96°C for 25 min, filter, wash, dry, and crush to obtain the first material;

[0027] S2. Mix 120kg of monoammonium phosphate, 20kg of potassium dihydrogen phosphate, 20kg of potassium perchlorate, 6kg of glass fiber, and 10kg of the first material uniformly, homogenize for 10 minutes, and homogenize pressure of 8kPa to obtain the second material;

[0028] S3. Mix 2kg of hydrogen-containing silicone oil and 12kg of water evenly, then add 4kg of acetone and stir evenly to obtain the mixture; spray the mixture into 160kg of the second material in a stirring state, heat up to 80℃ and mix evenly, remove the water , Add 2...

Embodiment 3

[0030] A preparation method of small particle size ABC dry powder fire extinguishing agent includes the following steps:

[0031] S1. Stir 65kg of nano calcium carbonate, 3.5kg of stearic acid, and 2.5kg of myristic acid for 18min at a stirring speed of 1700r / min. Add 14kg of microcrystalline paraffin and 90kg of water to mix evenly. Add 8kg of sulfated sodium oleate under stirring. Warm up to 92°C and stir for 40 minutes, filter, wash, dry, and crush to obtain the first material;

[0032] S2. Mix 105kg of monoammonium phosphate, 35kg of potassium dihydrogen phosphate, 12kg of potassium perchlorate, 10kg of glass fiber, and 7kg of the first material, homogenize for 18min, and homogenize pressure of 5kPa to obtain the second material;

[0033] S3. Mix 3.5kg of hydrogen-containing silicone oil and 8kg of water, then add 7kg of acetone and stir evenly to obtain the mixture; spray the mixture into 120kg of the second material in a stirring state, heat up to 86℃, mix evenly, and remove A...

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Abstract

The invention discloses a small-grain-diameter ABC dry powder extinguishing agent and a preparing method thereof. The preparing method includes the following steps that nano calcium carbonate, stearicacid and myristic acid are stirred, microcrystalline wax and water are added to be evenly mixed, sulfating sodium oleate is added in the stirring state, and heating, stirring, filtering, washing, drying and smashing are carried out to obtain a first material; monoammonium phosphate, monopotassium phosphate, potassium perchlorate, glass fibers and the first material are evenly mixed, and homogenization treatment is carried out to obtain a second material; hydrogen containing silicone oil and water are evenly mixed, then acetone is added to be evenly stirred, and a mixed material is obtained; and the mixed material is atomized and sprayed into the second material in the stirring state, heating and even mixing are carried out, water is removed, nanosilicon dioxide and magnesium stearate areadded, and vacuum smashing is carried out to obtain the small-grain-diameter ABC dry powder extinguishing agent.

Description

Technical field [0001] The invention relates to the technical field of dry powder fire extinguishing agents, in particular to a small particle size ABC dry powder fire extinguishing agent and a preparation method thereof. Background technique [0002] Halon 1211 fire extinguishing agent is a bromofluorocarbon substance. It has been discovered by American scientists that it has a huge damaging effect on the ozone layer of the atmosphere and is an important factor in the ozone hole. In 2005, the Chinese government promised to stop using 1211 halon fire extinguishing agent. The ammonium phosphate dry powder fire extinguishing agent has attracted more and more attention due to its high fire fighting efficiency. [0003] At present, the ABC ultrafine dry powder fire extinguishing agent based on monoammonium phosphate has a large particle size and is not easy to suspend in the fire area. The efficiency is low and the dosage is large, which needs to be solved urgently. Summary of the inv...

Claims

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Application Information

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IPC IPC(8): A62D1/06
CPCA62D1/0014A62D1/06
Inventor 卢思迪王伟鲁怀宁左振王哲
Owner BENGBU LONGTAI FIRE FIGHTING
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