Preparation method for fire extinguishing composite based on phosphoric acid dry powder

Abstract

The invention discloses a preparation method for a fire extinguishing composite based on phosphoric acid dry powder. The preparation method comprises the steps that a flame retardant particle mixtureis put into air-drying equipment to be air-dried completely; the flame retardant particle mixture is put into a ball milling for ball milling; a foaming agent, a stabilizer and the flame retardant particle mixture are put into a stirrer to be mixed and stirred, solutes are put into clear water to be mixed, an aqueous solution is formed, and a fire extinguisher is formed by adding a mixture, formedin S300, of the foaming agent, the stabilizer and the flame retardant particle mixture; and an anti-pressure container is loaded with the obtained fire extinguisher, and 1.8-2.3 barometric pressure is applied for storage. According to the method, the step of ball milling of the flame retardant particle mixture is additionally conducted, the unit diameter of the flame retardant particle mixture isobviously decreased, the fire extinguisher can adhere to the surfaces of afire objects more evenly, an insulation film can be rapidly formed in combination with foam generated by the foaming agent inthe high-temperature firing environment, and fires are rapidly extinguished.

Description

technical field [0001] The invention relates to the field of fire-fighting materials, in particular to the field of fire-extinguishing agents used for fire-extinguishing, in particular to a method for preparing a fire-extinguishing composition based on phosphoric acid dry powder. Background technique [0002] A fire extinguisher is a portable fire extinguishing tool. Chemicals are placed in the fire extinguisher to put out the fire. Fire extinguishers are one of the common fire prevention facilities. They are stored in public places or places where fires may occur. Different types of fire extinguishers contain different ingredients and are specially designed for different fire alarms. Care must be taken during use to avoid adverse effects and danger. [0003] Existing fire extinguishing agents mainly include foam and dry powder, both of which have their own advantages and disadvantages. The fire extinguishing agent in dry powder fire extinguishers is filled with melamine s...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing a fire extinguishing composition based on phosphoric acid dry powder, which solves the problems that dry powder fire extinguishers in the prior art are not easy to extinguish oily fires and the fire extinguishing efficiency of foam fire extinguishing agents is relatively low