Furnaces – Ash receiving and handling devices – Ashpans
414209, F23J 102
An apparatus mounted to an enclosure housing of a water entrained ash hopper for dislodging ash pluggages across an ash discharge opening in the ash hopper to maintain passage of ash from the ash hopper. The apparatus comprising a plate rotatably and sealingly connected to the enclosure housing, and a cylinder, mounted to the plate. The cylinder mounted to the plate such that a rod assembly extending from the cylinder is angularly disposed through the plate toward the ash discharge opening so as to be selectively extendable through a selected area of the ash discharge opening along an arc-shaped path. The piston movable from a retracted position to an extended position such that the rod extends into the ash discharge opening to dislodge ash pluggages disposed across the ash discharge opening. The rod assembly adapted to convey a stream of high pressure fluid against the ash pluggage.
patent: 1535649 (1925-04-01), Bronder
patent: 3913755 (1975-10-01), Kambara et al.
patent: 4479808 (1984-10-01), Campbell
Crisp Gary M.
Kuennen Larry E.
Madron Ronald G.
Kamen Noah P.
Oklahoma Gas and Electric Company
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