Abstract: A dry-operating electrostatic precipitator, especially for the cleaning of steel-making converter gases in which pyrophoric dust may deposit on electrodes of the electrostatic precipitator, has these electrodes composed of structural steel clad with corrosion-resistant steel.

Abstract: A dust-collecting electrostatic precipitator in which the collecting plates are constituted from interlocked thin sheet-metal strips with loosely interengaging edges and are suspended at the top from a common carrier, in which stabilization is increased against vibration by providing the lateral edges of the plates with short retaining members in a single horizontal zone or in a plurality of such zones spaced apart vertically from one another. The retaining members are interconnected by a rigid element. The system is particularly suited for tall electrostatic precipitators having a height of, say, 15 meters in which high gas velocities would otherwise cause extensive vibration of the electrode strips.

Abstract: A dust-collecting electrostatic precipitator has a housing in which a multiplicity of collecting-electrode walls are provided in transversely spaced parallel relationship and defined between two gas channels. Each wall consists of a plurality of individual collecting-electrode strips whose side edges are hooked loosely into the side edges of adjacent strips so as to prevent relative rotation of the strips. At the top, all the strips of each collecting-electrode wall are secured to a common carrier while, at the bottom, the strips of each electrode wall are connected to a common rapping member or bar. The individual collecting-electrode strips are provided with spacers which are distributed over the height of the strip and project transversely therefrom, each spacer being anchored to one strip and extending across one of the gas channels to terminate just short of an opposing electrode strip while defining a gap therewith.

Abstract: An ionizing electrode for the generation of a corona discharge in an electrostatic dust-collecting precipitator comprising an elongated metallic body provided with spaced-apart pointed tips, and a layer of nylon-11 material covering the body and having a thickness of 100 to 300 microns, preferably 150 to 250 microns. The electrostatic precipitator has an operating temperature of at most 140.degree. and preferably less than 120.degree.C.