FIELD: chemical industry. SUBSTANCE: device has working chamber 1 with branch pipe 5 for the vapor feeding located in the middle part of the chamber. In this case the chamber is divided into sections by means of upper 8 and lower 9 partitions located in series along the chamber length towards each other with the possibility of forming a slot for passing threads 4 between the edges of each pair. The partitions are placed correspondingly on upper 11 and lower 12 platforms fixed cantilevered by means of clamps from the side of the branch pipe for vapor feeding and leaning correspondingly on the bottom and cover of the working chamber by means of protrusions 17 and 18 having the antifriction coat ensuring the lightness of slipping of the platform loose ends. EFFECT: enhanced efficiency. 2 dwg
