Flotation apparatus for floating fiber suspensions extracted from waste paper
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United States of America Patent
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-
Dec 24, 1985
Grant Date -
N/A
app pub date -
Feb 9, 1984
filing date -
Feb 18, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The flotation apparatus has a vessel or container into which vortex or turbulence channels lead. These vortex channels supply the fiber suspension or stock to the vessel and are provided with at least one stepped enlargement. An air conduit supplying flotation air opens into the vortex channel. The vessel is substantially cylindrical about a vertical axis and is provided in its upper region with a central conduit or pipe for extracting the flotation foam. In the lower region of the vessel a conduit for extracting the recovered good stock is disposed tangentially.
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