Abstract: A device in an electrostatic precipitator for suspending, controlling and rapping one or more collecting electrodes arranged essentially vertically in one or more substantially parallel rows includes, for each row, a substantially horizontally oriented carrier element, to which the upper ends of the collecting electrodes are attached, connecting elements which connect the carrier element to the casing of the electrostatic precipitator, a control arrangement for controlling the motion of each row of collecting electrodes in the transverse and/or longitudinal direction of the electrostatic precipitator, and a rapping mechanism for rapping the collecting electrodes of each row. The rapping mechanism includes a rapping device, such as a rapping hammer, and an anvil connected to the carrier element.

Abstract: A dust separator in which a plurality of elongated emission electrodes are detachably held at one end in respective holder fittings secured to a pair of parallel, slightly-resilient inner frame members, or holders, which in turn are secured to substantially non-resilient outer frame members, and at their other ends in at least one holder fitting secured to a common cylindrical central holder extending between and parallel to the frame members; the electrode assembly is tensioned by adjustment of screws fastening said inner frame members or holders to said outer frame members. In one form the holder fittings are hollow cylinders through which the electrodes extend, and the electrodes are positioned in the fittings by their bent-over ends and clamped therein by tubular members forced into the hollow cylinders. In another form, specially-shaped holder shoes are used, in which dove-tailed ends of the electrodes are held.