Separator for water polluted with sediments

摘要

The particulate filter has a cylindrical tank (1) with a flat bottom. The water inlet (10) is low down in the tank and tangential to the inner wall of the tank. The water flow is in a spiral direction climbing up in the tank. At the centrally positioned cylindrical mesh the water flow changes from rotational to radial and the resulting shear forces on the particulates which are bonded to volatile particles, e.g. oil droplets, separated out the particulates and allows the water and volatile droplets to rise to a skimming outlet (11) near the top of the cylindrical mesh. The tank has a sectional cover (3) with a central hatch (13,15) through which the collected particulate slurry can be pumped out without having to dismantle the filter system. The particulate-free fluid is taken to a separation tank for further treatment.