FURNACE Russian patent published in 2023 - IPC D01F9/32 F27B17/00 

FIELD: heat treatment furnace.

SUBSTANCE: furnace for heat treatment is described, in particular for carbonization and/or graphitization, of a material, in particular fibres, in particular fibres from oxidized polyacrylonitrile, comprising a furnace body; a working chamber located in the interior of the furnace body, which is limited by the working chamber body, and in which the processed material can be placed; a heating system, which is configured to heat the air in the working chamber; an insulating layer providing thermal insulation of the working chamber, the insulating layer being an insulating filler consisting of a solid material in form of particles, and the solid material in form of particles being an insulating filler is compacted, the solid state material in form of particles is a carbon black material with a carbon content of more than 99.5%.

EFFECT: provision of furnace ensuring energy-efficient mode of operation.

14 cl, 5 dwg