Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1990-02-28
1991-06-11
Silverman, Stanley
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209168, 2102212, 261123, 162 4, B03D 124, B21B 132
Patent
active
050229842
ABSTRACT:
Apparatus for separating contaminant particles from liquid suspension stock, e.g. in the de-inking of used news print, is characterized by one or more of a plurality of features which contribute to increasing the capacity and effectiveness of the apparatus, including the provision of a cell comprising inner and outer annular chambers of substantially equal depth with the inlet and outlet connections for the stock being located adjacent the bottoms of the two chambers to force the stock to travel through the full depth of each chamber, and also the provision of a baffle of substantial width on the top of the wall between the two chambers to spread the stock overflowing that wall into a thin film. Other features include the use of an explosion-type flowbox to aerate the stock as it is delivered to froth flotation apparatus, and the provision of a variety of alternative constructions for spreading aerated grey stock into a film and causing that film to flow a substantial distance in a substantially horizontal plane in order to minimize the distance for travel of bubbles in the stock to the top of the film and thereby to expedite the resulting formation of a layer of froth at top of the film.
REFERENCES:
patent: 1323373 (1919-12-01), Myers
patent: 1497804 (1924-06-01), Spearman
patent: 2267496 (1941-12-01), Ellis
patent: 2646882 (1953-07-01), Frost
patent: 3286844 (1966-11-01), Juell
patent: 4083750 (1978-04-01), Newns
patent: 4186094 (1980-01-01), Heldberg
patent: 4190522 (1980-02-01), Tra
patent: 4288319 (1981-09-01), Heijs
patent: 4399028 (1983-08-01), Kile
patent: 4470903 (1984-09-01), van Leeuwen
patent: 4512888 (1985-04-01), Flynn
patent: 4548673 (1985-10-01), Nanda
patent: 4722784 (1988-02-01), Barnscheidt
patent: 4750994 (1988-06-01), Schneider
patent: 4952308 (1990-08-01), Chamberlin
Marsh Paul G.
Phillippe Irenee J.
Pimley John J.
Vitori Christopher M.
Lithgow Thomas M.
Silverman Stanley
The Black Clawson Company
LandOfFree
Froth flotation apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Froth flotation apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Froth flotation apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-781240