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Preparation method of low-cost ABC dry powder extinguishing agent

A dry powder fire extinguishing agent, low-cost technology, applied in fire prevention equipment, etc., can solve the problems of reduced dry powder fire extinguishing ability, high cost, poor dispersion effect, etc., achieve good powder dispersion effect, low production cost, and prevent re-ignition effect

Inactive Publication Date: 2018-07-13
安徽云联知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the raw materials used to produce ABC dry powder in various countries in the world are mainly monoammonium phosphate, which accounts for 70-80% of the total cost price of the product. At present, the use of monoammonium phosphate to produce ABC dry powder fire extinguishing agent has the following disadvantages: on the one hand, the cost is high, and on the other hand On the one hand, the dispersion effect is poor, which will reduce the ability of dry powder fire extinguishing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A low-cost ABC dry powder fire extinguishing agent preparation method comprises the steps:

[0021] S1. Mix 4g of carbon nanotubes with 100g of 92wt% concentrated sulfuric acid, let stand for 6h, filter, wash, ball mill for 5min, dry at 190°C for 20min, add 4g of calcium hydroxide superfine powder and 1g of mica powder and mix evenly to obtain a prefabricated material ;

[0022] S2. Add 700g wet-process monoammonium phosphate, 150g sepiolite powder, 40g medical stone powder, 25g light calcium carbonate, 12g silicone oil to 20g prefabricated material and stir for 12min at a stirring speed of 800r / min. The water content is 0.02wt%, and the ABC dry powder fire extinguishing agent with low cost is obtained by crushing.

Embodiment 2

[0024] A low-cost ABC dry powder fire extinguishing agent preparation method comprises the steps:

[0025] S1. Mix 12g of carbon nanotubes with 60g of 96wt% concentrated sulfuric acid, let stand for 2h, filter, wash, ball mill for 15min, dry at 180°C for 40min, add 1g of calcium hydroxide superfine powder and 4g of mica powder and mix evenly to obtain a prefabricated material ;

[0026] S2. Add 900g wet-process monoammonium phosphate, 50g sepiolite powder, 60g medical stone powder, 20g light calcium carbonate, and 15g silicone oil to 8g prefabricated material and stir for 5min at a stirring speed of 900r / min. The water content is 0.09wt%, and the low-cost ABC dry powder fire extinguishing agent can be obtained by crushing.

Embodiment 3

[0028] A low-cost ABC dry powder fire extinguishing agent preparation method comprises the steps:

[0029] S1. Mix 8g of carbon nanotubes with 90g of 93wt% concentrated sulfuric acid, let stand for 5h, filter, wash, ball mill for 8min, dry at 188°C for 25min, add 3g of calcium hydroxide superfine powder and 2g of mica powder and mix evenly to obtain a prefabricated material ;

[0030] S2. Add 750g wet-process monoammonium phosphate, 120g sepiolite powder, 45g medical stone powder, 24g light calcium carbonate, 13g silicone oil to 14g prefabricated material and stir for 10min at a stirring speed of 820r / min. The water content is 0.04wt%, and the low-cost ABC dry powder fire extinguishing agent can be obtained by crushing.

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PUM

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Abstract

The invention discloses a preparation method of a low-cost ABC dry powder extinguishing agent. The preparation method comprises the steps of mixing carbon nano tubes with concentrated sulfuric acid, carrying out standing, filtration, washing, ball milling and drying, adding calcium hydroxide ultrafine powder and mica powder, and uniformly mixing the materials to obtain a prefabricated material; and adding wet monoammonium phosphate, sepiolite powder, medical stone powder, light calcium carbonate and silicone oil into the prefabricated material, stirring the materials, and carrying out hot airconstant-temperature dehydration and smashing, so as to obtain the low-cost ABC dry powder extinguishing agent. According to the preparation method of the low-cost ABC dry powder extinguishing agent provided by the invention, production cost of the obtained dry powder extinguishing agent is low, the dispersion effect after fire heating is good, fire extinguishing efficiency is high, and reburningcan be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing agents, in particular to a method for preparing an ABC dry powder fire extinguishing agent with low cost. Background technique [0002] Ammonium phosphate dry powder fire extinguishing agent, referred to as ABC dry powder fire extinguishing agent, is a substitute for humans to replace halon substances in order to protect the ozone layer. At present, the raw materials used to produce ABC dry powder in various countries in the world are mainly monoammonium phosphate, which accounts for 70-80% of the total cost price of the product. At present, the use of monoammonium phosphate to produce ABC dry powder fire extinguishing agent has the following disadvantages: on the one hand, the cost is high, and on the other hand On the one hand, the dispersion effect is poor, which will reduce the fire extinguishing ability of dry powder. Contents of the invention [0003] Based on the technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00
CPCA62D1/0014
Inventor 毛昌林
Owner 安徽云联知识产权运营有限公司
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