HIGH VELOCITY WET ELECTROSTATIC PRECIPITATOR FOR REMOVING GASEOUS AND PARTICULATE CONTAMINANTS

摘要

A wet electrostatic precipitator including at least one annular gas passage defined by concentrically arranged collector tubes have liquid distributors mounted thereabove to produce downwardly-flowing uniform liquid films on the walls of the passage. A discharge electrode structure is disposed in the annular passage, a high voltage being applied between the electrode structure and the liquid films on the collector walls to create an electrostatic field causing ionized particulates in a gaseous stream conveyed upwardly through the passage to migrate toward the films to be carried downwardly thereby for disposal. Incoming contaminated gas at high velocity is fed into a reagent chamber communicating with a Venturi inlet leading to the annular gas passage, the chamber containing one or more manifold rings provided with an array of jet nozzles for spraying a reagent into the chamber and Venturi inlet to intermingle and react with chemical contaminants in the inflowing gas to produce reaction products in particulate form which are precipitable in the passage. The axial positions of the rings within the reaction chamber relative to the Venturi inlet are adjustable in order to optimize the reaction with the gaseous or chemical contaminants in the incoming stream. In addition, a ring of catalytic material may be included in the reaction chamber to enhance the chemical interation.