Patent ID: 9303921
Filing Date: 2016-04-05
CPC Classification: D01F,D02J,F27B,F27D

Claim Text:
1. An oxidation furnace for the oxidative treatment of fibres comprising: a) a housing, which is gas-tight with the exception of passage regions for carbon fibres; b) a process chamber located in an interior of the housing; c) at least one blowing device by which hot air is blown into the process chamber; d) at least one suction device, which sucks the hot air out of the process chamber; e) at least one ventilator which circulates the hot air through the blowing device, the process chamber and the suction device; f) at least one heating device located in a flow path of the hot air being circulated; g) deflection rollers, which guide the carbon fibres in a serpentine manner through the process chamber such that the carbon fibers lie next to one another as a carpet, wherein the carpet stretches over a respective plane between opposing deflection rollers; and, wherein, h) means are provided, which ensure that the hot air in the process chamber crosses the plane, over which the carpet stretches, at an angle which deviates from 0° and from 90°; and i) wherein the means comprise at least two air deflectors; and j) wherein the air deflectors extend in each case in clearances between planar regions of the serpentine carpet between the blowing device and the suction device.