Patent ID: 6736878
Filing Date: 2004-05-18
Classification: B03C

Abstract:
A dry horizontal flow electrostatic precipitator for removing suspended particles from a gas flow, the precipitator comprising:a casing; a treatment zone comprising electrodes; rapping means to dislodge the collected dust; an inlet and an outlet; and extraction means having an exhaust port for withdrawing an extraction gas flow from the upper portion of the casing prior to the gas flow reaching the outlet, wherein said exhaust port is located at a position in the casing for creating a point of extraction spaced a single predetermined distance from said inlet, for first extracting the extraction gas flow when the gas flow in the upper portion of the casing contains a predetermined level of dust concentration, and wherein said point of extraction is spaced at a distance from said inlet which is greater than half the distance between said inlet and said outlet.