PURPOSE:
Fire extinguishing powder KM-1 can be used to extinguish fires of light metals (magnesium, aluminum and their alloys) and class D fires when extinguishing with fire extinguishers and fire trucks.
DESCRIPTION:
The main principle of achieving a positive result when extinguishing metal-containing substances is to create a protective layer of the combustion center with the help of a fire extinguishing powder, which prevents the access of air oxygen to the combustion zone and does not allow combustion to spread. Such a coating must be sufficiently dense, have the required thickness of the powder layer over the entire surface of the combustion cell, which is achieved at a certain specific powder consumption (kg / m²). KM-1 powder has good fluidity and high fire extinguishing efficiency. It is supplied to the combustion center with compressed air or nitrogen. Nitrogen is widely used in explosive technological processes to create an inert atmosphere in apparatus and transport pipelines. As a fire extinguishing agent, it is used to extinguish sodium, potassium, beryllium and calcium. But it cannot be used to extinguish metals that have nitrides with explosive properties in their compounds. These metals include magnesium, aluminum, lithium, zirconium and some others. Argon is used to extinguish these metals. The burning metal is covered with a uniform layer of powder from special soothing nozzles. A layer of powder on the surface of the burning metal forms a dense crust. After the expiration date, KM-1 is subject to regeneration or disposal. The regeneration process consists of restoring the properties and characteristics of the powder, for which it is sent to the manufacturer. KM-1 can be disposed of as mixtures in winter for sprinkling sidewalk paths.
ADVANTAGES:
The ability to extinguish special substances, for example, a burning magnesium alloy; non-toxic to humans, animals and the environment; low cost; ease of storage and use.
RESULTS OF THE RESEARCH:
Ready for implementation.
STAGE OF THE DEVELOPMENT READINESS:
Working documentation developed.
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