Flotation machine for deinking
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United States of America Patent
Stats
-
Apr 28, 1992
Grant Date -
N/A
app pub date -
Sep 4, 1990
filing date -
Oct 16, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stock liquid is made to flow into a cell through a stock inlet at one end of the cell. The stock liquid is admixed with air bubbles from an air bubble generating device disposed at a lower portion of the cell and extending between the opposite end plates of the cell, thereby forming the stock liquid into a spiral flow. Ink particles are entrapped by the air bubbles to deink the stock liquid and the air bubbles remain as froth over the free surface of the stock liquid. The froth is made to flow down to the froth trough. The deinked stock liquid is discharged to the exterior of the cell through the stock outlet at the other end of the cell.
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