Textile web steam mixing or drying appts. - has fixed drum surrounded by wall closely adjacent its periphery to improve thermal efficiency

摘要

Appts. for drying or fixing webs using steam has a casing in which is located a fixed perforate drum about which the web is moved in a contactless manner, the inlet and outlet ports of the casing being provided with seals to prevent ingress of atmos. air and egress of steam. Web inlet and outlet are arranged in the vertical plane and the casing interior is provided with steam blast pipes and an annular exhaust duct. Specifically, the perforated drum periphery is enclosed by a circular wall supported by fixed guides. Thermal efficiency of appts. is increased.