FLOTATION DEVICE

摘要

A flotation device for separating materials or mixtures of materials from suspensions comprises a reaction and mixing chamber (18) with an eccentric feed (16) for mixing the suspension particles with gas bubbles and for conveying the mixture into at least one centrally positioned, vertical suspension distributor tube (26). Said suspension distributor tube (26) and the clear fluid collector tube (48) are located next to each other, the plates (30) surrounding said distributor tube (26) and said clear fluid collector tube (48) in a ring shape. Every second ring-shaped area (31) between adjacent plates (30) is connected to the suspension distributor tube (26) and every other ring-shaped plate area (31) is connected to the clear fluid collector tube (48), so that the flow occurs outwards from an inter-plate area (31) to the separating area (32) and then inwards into an adjacent inter- plate area (31). The main advantages of the invention are the improved flocculation resulting from the combination of the plate arrangement and the eccentrically loaded reaction and mixing chamber and the improved process values in the filtrate that are associated with this. Improved settling values are achieved by settling using the double plate principle.