Liquid purification or separation – Tangential flow or centrifugal fluid action – Multiple cyclone
Patent
1987-05-01
1988-02-23
Sever, Frank
Liquid purification or separation
Tangential flow or centrifugal fluid action
Multiple cyclone
209144, 209211, B01D 17038
Patent
active
047269022
ABSTRACT:
The cyclone degritter particularly suited for household use for receiving, degritting and discharging a water feed flow. The cyclone degritter comprises a pressurized housing containing a cyclonic degritter cartridge with a plurality of small hydro-cyclones arranged within a shell for collecting grit and an overflow vessel for directing clarified liquid to the housing overflow connection. In one form there is a bleed line from the top region of the shell or grit pot to the overflow for providing substantially improved recovery efficiency. In another form the cyclone degritter is provided with primary and secondary cyclone degritters with the primary set being used under conditions of low water flow while both primary and secondary sets are used for increased water flow.
REFERENCES:
patent: 4148723 (1979-04-01), Mozley
patent: 4168231 (1979-09-01), Allen et al.
patent: 4208270 (1980-06-01), Grieve et al.
patent: 4501664 (1985-02-01), Heil et al.
Dorr-Oliver Incorporated
Sever Frank
Snyder H. M.
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