Patent ID: 8540884
Filing Date: 2013-09-24
Classification: B01D,B03D

Abstract:
1. A flotation apparatus ( 10 ) for the separation of solid particles from a suspension while forming a fraction low in solid particles and a fraction rich in solid particles, the apparatus comprising a container ( 12 ) having at least one block of slats ( 29 ) assembled from slats ( 22 ) arranged above one another, an inlet ( 14 ) for the suspension, an outlet ( 16 ) for the fraction low in solid particles which has been led through the slats, and also having a skimmer device ( 36 ) as a mud scraper which has an outlet ( 18 ) for the fraction rich in solid particles, wherein at a side of the at least one block of slats ( 20 ) oriented towards the container wall there is arranged a plate ( 26 ) extending over at least a part of the side of the block of slats ( 20 ), with the plate ( 26 ) having a plurality of openings ( 38 ) which enable the passage of liquid through the plate ( 26 ), with the sum of the areas of the individual openings ( 38 ) in the upper region of the plate ( 26 ), related to the vertical direction, per square centimetre of the plate ( 26 ) being larger than the sum of the areas of the individual openings ( 38 ) in the lower region of the plate ( 26 ) per square centimetre of the plate ( 26 ) and wherein the inlet ( 14 ) for the suspension is arranged in the lower region of the container and is designed such that it brings about, related to the container cross-section, a central, vertically upwardly directed flow.