Electrostatic precipitators
AssigneeJoy Manufacturing Company
InventorYaacov Goland
Life of this patent
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Abstract
An electrostatic precipitator is provided utilizing an improved material for the collecting electrodes and other elements of the precipitator. The new material is a fiberglass reinforced resin with a conductive and corrosion-resistant surface layer consisting of resin containing graphite powder and one or more veils, or thin mats, of graphite at or near the surface. A relatively highly conductive, corrosion-resistant surface layer is thus provided for the electrodes while the material is also a suitable structural material for other parts of the precipitator such as the casing. Tube sheets and supports for tubular collecting electrodes may also be made of this material with provision for grounding the electrode surfaces at both the top and bottom of the tubes.
Claims11
An electrostatic precipitator comprising a casing made of corrosion resistant material and having a gas inlet and a gas outlet, a plurality of collecting electrodes, and a plurality of high-voltage electrodes, each of said collecting electrodes being made of an insulating resin reinforced with fiberglass and having an integral conductive surface layer on its collecting surface, said surface layer consisting of a layer of said resin containing graphite powder and at least one graphite veil substantially coextensive with the surface.
A collecting electrode adapted for use in conjunction with a high voltage electrode of an electrostatic precipitation apparatus to maintain an electrical field which is effective for electrostatic precipitation of contaminants from a flow of gas processed through such electrostatic precipitation apparatus, said collecting electrode comprising:
- an electrode body member formed to cooperate with such high voltage electrode to maintain such electrical field;
- said body member including a layer of insulating resin reinforced with fiberglass and having an integral conductive layer formed on the surface thereof with said conductive layer including a collecting surface on which such contaminants accumulate during electrostatic precipitation operations;
- and said conductive layer consisting of a layer of insulating resin containing graphite powder and at least one graphite veil substantially coextensive with said collecting surface.
Dependencies are inferred from the claim text.