Flotation apparatus for flotation of fibrous stock suspension recovered from waste paper
Apparatus for continuous purification of liquids Patent #: 5176835
ApplicationNo. 378817 filed on 01/27/1995
US Classes:210/221.2, And gas injecting means other than by mechanical agitation210/703, Effecting flotation210/704Including chemical addition (with or without bouyancy gas)
ExaminersPrimary: Lithgow, Thomas M.
Attorney, Agent or Firm
Foreign Patent References
International ClassC02F 001/24
Foreign Application Priority Data1994-03-03 DE
AbstractAn apparatus for gas bubble flotation comprises an angular flotation tank (1a, 1b), at least one liquid inlet (2a, 2b) for a liquid containing suspended matter and a liquid admixed with gas bubbles, in which apparatus at least one liquid inlet (2a, 2b) is arranged in the vicinity of at least one flotation tank corner. Preferably, the flotation tank has a square cross section. This permits optimal utilization of the available space, and results in a continuously decreasing flow velocity and thus an improved flotation effect.
Field of SearchRECIRCULATION
Serially connected distinct treating or storage units
With outlet at surface, e.g., froth flotation, etc.
And gas injecting means other than by mechanical agitation
Material supply distributor
Heavier constituent trap, chamber, or recess
Scum sediment removal
Including chemical addition (with or without bouyancy gas)