Multiple primary roll
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United States of America Patent
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-
Dec 31, 1985
Grant Date -
N/A
app pub date -
Oct 9, 1984
filing date -
Oct 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dual-belt method and apparatus for dewatering a water laden cake of material through the use of multiple primary dewatering rolls is disclosed. A pair of porous belts containing filter cake disposed between the belts are wrapped around a first and second primary roll so that the belts circumscribe more than a 180.degree. arc of each roll. The pressure applied to the belts, that is, to the filter cake, is greater on the second roll than on the first roll.
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