Abstract: An electrostatic precipitator for operation at elevated pressures and temperatures comprises an inclined duct, usually of circular cross section, having the collector electrodes extending parallel to the axis of the duct and thus also inclined to the horizontal whereby the collected material can flow downwardly by gravity. The corona discharge electrodes, however, extend between frames spanned across the flow cross section and lying substantially in vertical planes, being tensioned by weights, advantageously via eccentric means such as levers.

Abstract: A feed-through insulating assembly for a conductor in a high-pressure electrostatic precipitator comprises a pair of grooved insulator rings which are urged against a flange and bear upon the latter through wire seals, the rings being coaxial and having their grooves opening in opposite directions. A pair of oppositely concave cup-shaped members have rims seated on the floors of the respective grooves via further seals and reach into the grooves while being pressed together by the conductor and a nut/spring retaining arrangement. The flange surrounds an opening in the wall of the electrostatic precipitator.