Electrostatic scrubber
First Claim
1. A method for producing highly charged droplets without effecting corona discharge which comprises:
- (a) conducting a liquid to be formed into said highly charged droplets to a nozzle having a tip from which said liquid protrudes; and
(b) forming a substantially uniform electric field over the surface of said liquid protruding from said tip, said electric field being sufficiently large to pull said highly charged droplet free of said tip without creating corona discharge.
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Accused Products
Abstract
Small highly charged droplets are produced without concurrent production of corona by conducting a liquid to a nozzle having a tip from which droplets of the liquid can exit, and forming a substantially uniform electric field over the surface of the liquid on the tip, the field being large enough to pull off droplets from the tip but not so large as to create corona discharge. Selected gas, solid particulates and liquid mists from gaseous effluents such as are produced by smelters, coal or oil-burning steam generators, chemical refineries and the like are removed by means of a unique electrostatic collector using the highly charged droplets. These droplets are caused to drift, by means of an electric field, through the gaseous effluent to a collecting electrode absorbing selected gases and aerosol particles and carrying them to a collecting electrode.
63 Citations
17 Claims
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1. A method for producing highly charged droplets without effecting corona discharge which comprises:
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(a) conducting a liquid to be formed into said highly charged droplets to a nozzle having a tip from which said liquid protrudes; and (b) forming a substantially uniform electric field over the surface of said liquid protruding from said tip, said electric field being sufficiently large to pull said highly charged droplet free of said tip without creating corona discharge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An improved method for removing one or more predetermined components from a gaseous stream, of the type wherein a scrubbing liquid is formed into highly charged droplets, the droplets are conducted into a chamber, a gaseous stream containing said predetermined components is passed through said chamber into contact with said droplets whereby said droplets remove said predetermined components from said gaseous stream and the charged droplets are then collected on a collecting electrode which has an electrical charge opposite that of said droplets, the improvement comprising:
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(a) conducting said scrubbing liquid to a nozzle having a tip from which said liquid protrudes; and (b) forming a substantially uniform electric field over the surface of the liquid as it protrudes from said tip, said electric field being sufficiently large to pull said highly charged droplets free of said tip without creating corona discharge. - View Dependent Claims (14, 15, 16, 17)
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Specification