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Preparation method of high-efficiency fire extinguishing ABC superfine dry powder extinguishing agent

A technology of ultra-fine dry powder and fire extinguishing agent, which is applied in the direction of fire prevention equipment, etc., can solve the problems of fully submerged fire extinguishing performance, easy to form lumps, easy to absorb moisture, etc. The effect of not easy to agglomerate

Inactive Publication Date: 2018-03-23
BENGBU LONGTAI FIRE FIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The base material for making ABC superfine dry powder fire extinguishing agent is mainly ammonium dihydrogen phosphate, but in a humid environment, ammonium dihydrogen phosphate is very easy to absorb moisture and form hard lumps, resulting in failure, and the particle size after crushing is large, directly Affect its fire extinguishing efficiency and the performance of total flooding fire extinguishing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing an ABC superfine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0023] S1. Mix 50 g of ammonium dihydrogen phosphate and 15 g of monoammonium phosphate, dry until the water content is 0.1 wt%, add the alum compound and stir for 15 min at a stirring speed of 1400 r / min to obtain prefabricated material A;

[0024] S2. Add 2 g of alkali slag, 4 g of glass fiber, and 1 g of magnesium stearate to 90 g of preform A, mix evenly, and mechanically ball mill until the particle size is 10-20 μm to obtain preform B;

[0025] S3. In the state of stirring, add 6g of silicone oil dropwise to 100g of prefabricated material B, stir evenly, the stirring speed is 2000r / min, add 4g of fumed silica and continue stirring for 20min, the stirring temperature is 90°C, and pulverize until the particle size is 5- 30μm, to get ABC superfine dry powder fire extinguishing agent with high efficiency.

[0026] The alum compound ...

Embodiment 2

[0029] A method for preparing an ABC superfine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0030] S1. Mix 80kg of ammonium dihydrogen phosphate and 4kg of monoammonium phosphate, dry until the water content is 0.18wt%, add the alum compound and stir for 5min at a stirring speed of 1500r / min to obtain prefabricated material A;

[0031] S2. Add 8 kg of alkali slag, 1 kg of glass fiber, and 2 kg of magnesium stearate to 60 kg of prefabricated material A, mix evenly, and mechanically ball mill until the particle size is 10-20 μm to obtain prefabricated material B;

[0032] S3. In the state of stirring, add 2kg of silicone oil dropwise to 100kg of prefabricated material B, stir evenly, the stirring speed is 3000r / min, add 2kg of fumed silica and continue stirring for 30min, the stirring temperature is 80°C, and pulverize until the particle size is 5- 30μm, to get ABC superfine dry powder fire extinguishing agent with high efficie...

Embodiment 3

[0036] A method for preparing an ABC superfine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0037] S1. Mix 60kg of ammonium dihydrogen phosphate and 12kg of monoammonium phosphate, dry until the water content is 0.12wt%, add the alum compound and stir for 12min at a stirring speed of 1420r / min to obtain prefabricated material A;

[0038] S2. Add 4 kg of alkali slag, 3 kg of glass fiber, and 1.2 kg of magnesium stearate to 80 kg of prefabricated material A, mix evenly, and mechanically ball mill until the particle size is 10-20 μm to obtain prefabricated material B;

[0039] S3. In the state of stirring, add 5kg of silicone oil dropwise to 100kg of prefabricated material B, stir evenly, at a stirring speed of 2200r / min, add 3.5kg of fumed silica and continue stirring for 22min, at a stirring temperature of 88°C, pulverize until the particle size is 10 -20μm, ABC superfine dry powder fire extinguishing agent with high efficienc...

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Abstract

The invention discloses a preparation method of a high-efficiency fire extinguishing ABC superfine dry powder extinguishing agent. The preparation method of the high-efficiency fire extinguishing ABCsuperfine dry powder extinguishing agent comprises the following steps of mixing and drying ammonium dihydrogen phosphate and monoammonium phosphate, adding an alum compound, and stirring the ammoniumdihydrogen phosphate, the monoammonium phosphate and the alum compound to obtain a prefabricated material A; adding alkaline residues, glass fibers and magnesium stearate into the prefabricated material A, mixing the alkaline residues, the glass fibers, the magnesium stearate and the prefabricated material A uniformly, and then obtaining a prefabricated material B through ball milling; and dropwise adding silicon oil into the prefabricated material B in a stirring state, stirring the silicon oil and the prefabricated material B uniformly, adding fumed silica for continuous stirring, and crushing the mixture to obtain the high-efficiency fire extinguishing ABC superfine dry powder extinguishing agent. The high-efficiency fire extinguishing ABC superfine dry powder extinguishing agent is high in fire extinguishing efficiency, the fire extinguishing efficiency is 10 times that of a common dry powder extinguishing agent, and meanwhile, compared with other superfine dry powder extinguishing agents, the high-efficiency fire extinguishing ABC superfine dry powder extinguishing agent is not only good in water repellency and liquidity, not prone to be agglomerated and capable of being stored for a long period of time, but also simple in preparation process, low in production cost, pollution-free and suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of dry powder fire extinguishing agents, in particular to a method for preparing an ABC superfine dry powder fire extinguishing agent with high efficiency for fire extinguishing. 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. The base material for making ABC superfine dry powder fire extinguishing agent is mainly ammonium dihydrogen phosphate, but in a humid environment, ammonium dihydrogen phosphate is very easy to absorb moisture and form hard lumps, resulting in failure, and the particle size after crushing is large, directly Affect its fire extinguishing efficiency and the performance of total flooding fire extinguishing. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a method f...

Claims

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Application Information

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IPC IPC(8): A62D1/00
CPCA62D1/0014A62D1/0064
Inventor 卢思迪王伟鲁怀宁左振王哲
Owner BENGBU LONGTAI FIRE FIGHTING
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