Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1992-02-25
1993-11-02
Skaggs, H. Grant
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209211, 2105121, B04B 300
Patent
active
052576981
ABSTRACT:
Pump-like inlet blading has operatively connected therewith a multi-stage stepped diffusor axially opening into a separation chamber. For the removal of light particles, openings or recesses are provided at the outlet side of an inner cylinder and such merge with withdrawal channels at the inner cylinder. If necessary, there are provided for the heavy particles a collecting groove at least in front of turbine-like outlet blading and from which lead openings, so-called saveall openings towards the outside. These saveall openings are briefly alternatingly opened and closed during operation of the stock suspension cleaner. The fluid stream of the cleaned stock suspension is removed by the turbine-like outlet blading. At least one part of the inner cylinder which delimits the separation chamber is separately rotatable relative to the outer cylinder, so that such inner cylinder part can be rotated at a different rotational speed than the outer cylinder. The inner cylinder part carries at least one scraper which, during operation, clears the inner wall of the outer cylinder to preclude any caking thereat of heavy particle accumulations and promoting further conveyance of the heavy particles. The rotating inner cylinder part also carries a pusher ring which revolving moves in the collecting groove, pushes the heavy particles towards the saveall openings and alternately opens and closes these saveall openings.
REFERENCES:
patent: 2748668 (1956-06-01), Hornbostel
patent: 3351195 (1967-11-01), Hukki
patent: 4332350 (1982-06-01), McClellan
patent: 4443331 (1984-04-01), Amand
Christ Alfred
Holik Herbert
Linck Erich
Siewert Wolfgang
Druzbick Carol Lynn
Skaggs H. Grant
Sulzer Escher Wyss GmbH
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