FIELD: coal industry.
SUBSTANCE: invention relates to a method of creating a temperature-dependent carbon film cladding by application of liquid phase on surface of coal, wherein liquid phase used is liquid sodium glass with silica modulus higher than 3.5, film is applied with thickness of not more than 250 mcm, after which light short-term heating of film is performed until its volume increases by not more than 30 %.
EFFECT: method enables to avoid or sharply reduce problem of oxidation of coal fuel during storage on open warehouses and prolonged transportation, freezing during transportation and reloading, and corresponding complexity of unloading, and avoid spontaneous ignition and spontaneous heating of coal in storages near thermal power plants.
4 cl, 4 dwg, 4 ex
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