ABC superfine dry powder extinguishing agent and preparation method thereof

Abstract

The invention relates to the field of fire fighting and extinguishing and discloses an ABC superfine dry powder extinguishing agent and a preparation method thereof. The extinguishing agent comprises the following components by mass percent: 3-5% of mica powder, 3-6% of hydrophobic fumed silica, 0.9-1.5% of high-boiling silicone oil, 0.8-1.5% of water, 1-1.5% of gasoline and the balance of ethylenediamine phosphate. The prepared ABC superfine dry powder extinguishing agent has the beneficial effects that as 90% of particle sizes are less than or equal to 12mu m, the properties of the ABC superfine dry powder extinguishing agent meet relevant requirements of GA578-2005 superfine dry powder extinguishing agents, and the ABC superfine dry powder extinguishing agent can achieve the total flooding extinguishing and flooding extinguishing effects; moreover, the dry powder extinguishing agent has excellent water repellency and long storage period and is especially suitable to serve as the extinguishing agent of water-based and dry powder composite jet extinguishing equipment.

Description

technical field [0001] The invention relates to the field of fire extinguishing, in particular to an ABC superfine dry powder fire extinguishing agent and a preparation method thereof. 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. Ultrafine dry powder fire extinguishing agent is defined in GA578-2005 as a solid powder fire extinguishing agent with 90% particle size less than or equal to 20 μm. Although the parameters of the ABC superfine dry powder fire extinguishing agent sold in the market can meet the requirements of GA578-2005, its particle size is still too large, and the submerged fire extinguishing effect is not ideal. The main materials used are ammonium dihydrogen phosphate and ammonium sulfate, which are very easy to absorb moisture and agglomerate. In the process of preparing the fire extinguishing agent, the process requiremen...

AI Technical Summary

Problems solved by technology

Although the parameters of the ABC superfine dry powder fire extinguishing agent sold in the market can meet the requirements of GA578-2005, its particle size is still too large, and the submerged fire extinguishing effect is not ideal

The main materials used are ammonium dihydrogen phosphate and ammonium sulfate, which are very easy to absorb moisture and agglomerate. In the process of preparing the fire extinguishing agent, the process requirements are high; the fire extinguishing agent is easy to form hard lumps in harsh environments such as humidity and vibration, which makes the fire extinguishing agent ineffective.

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