FIELD: gas filtration equipment. SUBSTANCE: filter cartridge intended, in particular, to separate dust particles from hot flue gases within temperature range 120 to 800 C contains gas-impermeable porous carrier made up of a refractory material including non-corrosive materials, refractory covering layer made of fine- grain filler with pore size at least 10 mcm, in which grains are disposed on outer side of carrier, and additional covering layer with pore size less than that of main covering layer. EFFECT: improved structure. 2 cl, 12 dwg
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