FIELD: metallurgy.
SUBSTANCE: invention relates to an oxidative furnace for processing fibres and for producing hydrocarbon fibres. Furnace (1) has located inside housing (2) a process chamber, blowing device (13), exhaust device (14), one fan, which pumps out hot air through blowing device (13), and being in hot flow of pumped air heating device. Run-around rolls (24, 25, 26, 32) direct fibres (20) through a process chamber located nearby in zigzag manner in form of a carpet. Fibre mat (20) forms a plane between opposite bypass rollers (24, 25, 26). Means (33) provide crossing of air plane formed by fibre mat (20), at angle other than 0° and from 90°, so that throughout between blower (13) and exhaust device (14, 15) there is air essentially of same temperature.
EFFECT: invention improves heat exchange between hot oxidative air and fibres.
16 cl, 10 dwg
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