Sootblower with progressive cleaning arc

摘要

A sootblower (10) of the short travel rotary furnace wall type having features which permit indexing of the angular position of the screw tube assembly (18) during successive operating cycles. Indexing of the arc swept by the sootblower nozzle (24) is provided through the use of a novel cam plate component (44,74) and operating the sootbtower (10) in a manner which provides for indexing between operating cycles.