| 摘要 |
1,137,233. Sieve drum driers. VEPA A.G. 2 March, 1967 [2 March, 1966], No. 9918/67. Heading F4G. [Also in Division D1] In a sieve drum drier having a pair of sieve drums, the internal covering plates within the drums where the web to be dried does not cover the drum, and the suction fans at the end face of each drum combine to produce an upwardly directed stream which is returned to one drum and a downwardly directed stream which is returned to the other, the streams each having located therein a heat-exchanger which is linked with a temperature feeler located in that air stream.
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