Preparing method of fire extinguishing agent made of ammonium dihydrogen phosphate dry powder

Abstract

The invention discloses a preparation method of a fire extinguishing agent made of ammonium dihydrogen phosphate dry powder, which comprises the steps of putting hydrophobic solid particles into an air-drying device for sufficient air-drying; putting the hydrophobic solid particles into a ball mill for ball milling; The step of putting the foaming agent, stabilizer, and hydrophobic solid particles into the agitator for mixing and stirring, and mixing the solute into clear water to form an aqueous solution and adding the foaming agent, stabilizer, and hydrophobic solid particles in step 3 A mixture of solid particles forms a fire extinguishing agent; the obtained fire extinguishing agent is packed in a pressure-resistant container and stored at 1.8-2.3 atmospheres. In the present invention, by adding the step of ball milling the hydrophobic solid particles, the unit diameter of the hydrophobic solid particles is significantly reduced, and can be more uniformly attached to the surface of the burning object, and the foam produced by the foaming agent can be used in a high-temperature burning environment It can quickly form an insulating film and quickly extinguish the fire.

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, and specifically relates to a method for preparing a fire-extinguishing agent made of ammonium dihydrogen phosphate 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 fill...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a fire extinguishing agent made of ammonium dihydrogen phosphate dry powder, so as to solve the problems that the dry powder fire extinguisher in the prior art is not easy to extinguish oily fires and the fire extinguishing efficiency of the foam fire extinguishing agent is relatively low.