Dewatering press with perforated metal outer shell and resilient elastic mounting means
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United States of America Patent
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Aug 29, 1989
Issued Date -
N/A
app pub date -
Mar 21, 1989
filing date -
Apr 8, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pulp dewatering apparatus is constructed of two press rolls arranged juxtaposed to define a nip region. At least one of the press rolls is constructed of a perforated metal outer shell surrounding a substantially rigid inner roll body. A layer of elastic material is disposed between the rigid roll body and the perforated metal shell to provide a resilient member. As a result of the elastic material, this press roll will deform during the dewatering operation to provide an extended nip region of about 3 to 5% of the overall press roll diameter.
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