Rotating disk electrostatic precipitator with removable uniform flow duct

An electrostatic precipitator for removing particulate matter from a gas containing such matter, said precipitator comprising:

• at least two rotatable electrically conductive disks mounted on a single shaft and separated so as to define a substantially cylindrical volume therebetween;
• a sealable, electrically insulated housing surrounding said at least two disks, said housing having at least one inlet port and at least one outlet port for supplying said particulate gases to said volume between said at least two disks;
• at least one substantially rectangular cross section duct within said housing for providing flow communication of said gas between said at least one inlet port and said at least one outlet port, said at least one duct being configured so that said at least two disks form a portion of the side walls thereof, said at least one duct being constructed and arranged for movement as a unit into and out of said housing;
• at least one wire electrode supported from said at least one duct so as to lie approximately midway between said at least two disks;
• a pair of wiper blades disposed outside of said at least one duct, adjacent to said shaft and positioned and arranged for removing particulate matter on said at least two disks;
• and
• chute means for removal of said particulate matter scraped from said at least two disks by said wiper blades;
• whereby the flow of gas through said precipitator is such as not to impart significant centrifugal velocities to said gas or to said particulate matter.