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Production method of high-quality dry powder fire extinguishing agent

A technology of dry powder fire extinguishing agent and production method, which is applied in the direction of fire prevention equipment, etc., can solve the problems of inability to produce high-quality products stably on a large scale, difficult to control product quality, insufficient drying, etc., achieve excellent sprayability, improve production efficiency, The effect of improving product quality

Active Publication Date: 2021-05-07
ELECTROCHEM FACTORY OF HUAWU CHEM IND FOSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the past, the conventional dry powder fire extinguishing agent production process had problems such as insufficient drying, poor siliconization effect, difficult control of product quality, high production cost, low efficiency, and inability to produce high-quality products stably on a large scale.

Method used

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  • Production method of high-quality dry powder fire extinguishing agent
  • Production method of high-quality dry powder fire extinguishing agent

Examples

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Embodiment 1

[0080] Get 6664 kilograms of ammonium dihydrogen phosphate raw material (purity 90%), 1216 kilograms of ammonium sulfate raw material. The raw material moisture content is 0.4%. The raw material is sent into the Raymond pulverizer, and 80 kg of hydrophobic white carbon black is added during the feeding process, and then pulverized. After crushing, the material is metered into the mixing mixer, and the material is heated to 60°C for drying while stirring. The heating process lasts for about 1 hour. Then add 40 kg of silicone oil and continue stirring for 1 hour to disperse the silicone oil evenly.

[0081] Then the material is transported to the cyclone separator with the Roots powder feeder to further remove the moisture. The operating parameters of the Roots powder feeder are 1200 cubic air per hour and 8 tons of powder per hour. The operating parameters of the cyclone separator are: separation wind speed 20 m / s, dilute phase: powder to air volume ratio 2%. After passing t...

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Abstract

The disclosure provides a production method of a high-quality dry powder fire extinguishing agent, which includes a crushing step, a pre-drying step, a silicone oil addition step, a conveying drying step, a cross-linking curing step, and a screening step. The disclosure adopts a combination process, which effectively improves the performance of materials, greatly increases production efficiency, improves product quality, and is suitable for large-scale production of high-quality dry powder fire extinguishing agents.

Description

technical field [0001] The invention belongs to the field of fire safety and relates to a production method of high-quality dry powder fire extinguishing agent. Background technique [0002] Dry powder fire extinguishing agent is widely used in the field of fire safety because of its fast fire extinguishing rate, large fire extinguishing area, good cost-effective equivalent unit fire extinguishing, wide temperature range, harmless to the environment, no need for external power and water sources, and easy to use. Recently, new national standards for dry powder fire extinguishing agents have been implemented, which puts forward higher requirements for the quality of dry powder fire extinguishing agents. There are many deficiencies in the past production process, which has been difficult to meet the production demand of high-quality dry powder fire extinguishing agent. [0003] The conventional dry powder fire extinguishing agent production process roughly includes the steps o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/00
CPCA62D1/0014
Inventor 何国柱李志成李伟明
Owner ELECTROCHEM FACTORY OF HUAWU CHEM IND FOSHAN