Rapping assembly and electrode supports for electrostatic precipitators

In combination with an electrostatic precipitator having a housing with a flow-through inlet and a flow-through outlet and a plurality of discharge and collecting electrodes disposed therein defining an electrostatic field therebetween, said housing including an opening in the upper portion thereof with a rapping assembly extending therethrough, said rapping assembly for said discharge electrodes comprising:

• an electrically insulated cover means covering said opening;
• a vertically extending reciprocating support means having an upper end extending through said cover, insulating means insulating said reciprocating support means, the lower end of said support means having a pin wheel drive means mounted thereon;
• driving means driving said reciprocating support means;
• a vertically extending stationary support tube encircling said vertically extending reciprocating means attached to said insulated cover means at its upper end and having electrode carrying means mounted onto its lower end;
• said electrode carrying means having a plurality of said discharge electrodes attached thereto and at least one rapper receiving means mounted onto said electrode carrying means;
• said electrode carrying means including rapper shaft support means thereon supporting a horizontally extending rapper shaft, said rapper shaft including at least one rapper thereon, said rapper being in alignment with and received by said rapper receiving means, said rapper shaft including a pin wheel therein in alignment with and driven by said pin wheel drive means whereby said rapper shaft is rotatable at a preselected rate.