Patent ID: 9441881
Filing Date: 2016-09-13
CPC Classification: D01F,D02J,F26B,F27B,F27D

Claim Text:
1. An oxidation furnace for the oxidative treatment of fibres comprising: a) a housing which is gastight apart from inlet and outlet regions for fibres; b) a process chamber located in an interior of the housing; c) a blowing device by means of which hot air is blown into the process chamber; d) at least one suction device which is arranged in an end region of the process chamber, and which extracts hot air from the process chamber and comprises a plurality of suction boxes which are arranged at a vertical spacing from one another and have at least one outlet opening for the hot air and, on one side, at least one inlet opening for hot air, which communicates with the process chamber; e) at least one ventilator which circulates the hot air through the blowing device, the process chamber and the suction device; at least one heating device located in a flow path of the hot air; g) guide rollers which guide the fibres in serpentine manner through clearances between suction boxes located above one another; and h) the at least one inlet opening communicating with the process chamber is provided in an outwardly facing side of each suction box, wherein the outwardly facing side is a side remote from the centre of the process chamber.