Mixer
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United States of America Patent
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-
Jan 16, 1996
Grant Date -
N/A
app pub date -
Mar 1, 1994
filing date -
Mar 1, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides apparatus for use in the preparation of gypsum products such as plasterboard from foamed gypsum plaster slurry. The apparatus comprises a first mixing chamber 10 containing a high speed rotor 14 and inlets 18, 19 for gypsum plaster and water. The initial dispersion of gypsum plaster and water foamed in the first chamber passes directly and continuously into a second chamber 25 containing a low speed rotor 29. Preformed foam is introduced into the second chamber through an inlet 33, and the foamed slurry product leaves the second chamber through an outlet 34, to be formed into plasterboard.
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Cited Art Landscape
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