Feldmuhle Aktiengesellschaft

E+m Lamort S.a.

E Et M Lamort S.a.

Feldmuele Aktiengesellschaft

Feldmuehle Aktienegesellschaft

Wolfgang Barnscheidt

Jean-Pierre J Lamort

Robert Rautenbach

Horst Von Borries

Hubert Zimmermann

August Schiffermuller

In deinking, the flotation of fiber suspensions is performed in a cylindrical tank 2 to which the fiber suspension is fed through a coupling means 36 as primary stream. The fiber suspension is already aerated and is withdrawn through a suction connection 33 below the coupling means 36 and fed after another aeration through a secondary connection 35 above the coupling means. The volume of the circulated secondary stream is greater than the volume of the primary stream. It is thereby assured that the fiber suspension is aerated at least twice and thus better cleaned.

Method and apparatus for the flotation of dispersions

Aerating apparatus

Flotation apparatus for de-inking of pulp suspension in a flotation cell with injectors for feeding the pulp suspension into the cell and for aerating the pulp suspension. The injectors are equipped with wide slot nozzles through which the suspension flows having a ratio of cross-sectional area to periphery of between 1.5 mm and 4.0 mm. A mixing chamber receiving pulp suspension flow from the wide slot nozzles is provided having a cross-sectional area which is between 1.3 to 1.7 times the cross-sectional area of the wide slot nozzles.

Flotation apparatus for de-inking pulp suspensions

Method of and arrangement for the de-inking of pulp suspensions

Growing community of inventors

Dormagen-Straberg, Germany

Wolfgang Barnscheidt