Device for treating a material web

Details Device for treating a material web Device for treating a material web

1988-06-15

1989-10-24

Tanner, Harry B.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 41, 34124, F26B 1900

Patent

active

048752975

ABSTRACT:
A device for treating a material web comprising a heating roller with at least one flow channel extending through the heating roller in its longitudinal direction, feed and return pipes for a heat carrier fluid flowing through the heating roller, a heating device for the heat carrier, and a counter roller, which is in contact with the heating roller; an additional heating device heats the heating roller from the outside; and a control unit connected to both heating devices heats or cools the heating roller as a function of predetermined operating conditions.

REFERENCES:
patent: 2268988 (1942-01-01), Hess et al.
patent: 3016622 (1962-01-01), Gade et al.
patent: 3748224 (1973-07-01), Tillie et al.
patent: 4624744 (1986-11-01), Vreeland

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