Patent ID: 7585354
Filing Date: 2009-09-08
Classification: B01D

Abstract:
1. A wet scrubbing apparatus for wet scrubbing pollutants in air and gases, comprising: a central chamber, which extends in a vertical direction, and has an inlet at its bottom for a gas to be purified; a plurality of chambers concentrically arranged around said central chamber; said central chamber and said concentric chambers being connected in series and the outermost concentric chamber having one or more outlets, each provided with a mechanical filter; air delivery means, situated upstream from said central chamber or inside said central chamber or at the outlet of the outermost concentric chamber to generate a current of gas that sequentially travels from the central chamber to the concentric chambers; a plurality of nozzles, for spraying water into said concentric chambers; a collection tank for collecting the water sprayed into said concentric chambers; a filtering tank, fed by said collection tank, for removing solid particulates which build up in water collected in said collection tank; a pump for feeding said plurality of nozzles with water from said filtering tank; wherein said central chamber and said concentric chambers have increasing sections, whereby the gas stream has a decreasing speed as it passes from one chamber to the other; wherein at least one of said concentric chambers is equipped with at least one wire gauze partition disposed transversely through which flue gas and water droplets are forced, and wherein said wire gauze partition comprises a wire gauze having a mesh of not less than 1 ×1mm and not more than 10 ×10 mm.