| 摘要 |
The flotation assembly, to separate foreign matter from a paper fiber suspension (S), and especially ink particles from used paper fiber materials, has at least one distributor (2) rotating within the vessel (1). It has outlet openings (4) which are opened to the rear when it is rotated (U) within the suspension (S). The distributor (2) does not have a motor drive, but is rotated by the recoil of the suspension (S) moving through the openings (4). The distributor (2) has a gas feed, to form bubbles within the suspension of used paper fibers, using at least one step diffuser (7) where the suspension flows through and at least one opening for the feed of a gas and especially air (L) into the suspension. The distributor (2) has a hollow zone to take the inserted gas unit, linked to an air supply. The outlet openings (4) are deployed at different radii from the rotating center. The vertical rotary axis of the distributor (2) is parallel to the center line of the vessel (1), and places the distributor (2) in the center of the vessel (1). The suspension deflection angle is 80-90 degrees against the radius, and can be of different values. The vessel (1) is a round cylinder, and the outer diameter of the distributor (2) is at least 25% of the vessel (1) diameter |
