MECHANISM FOR ROTATING AND RECIPROCATING A SOOT BLOWER

摘要

A short-stroke steam lance is reciprocated through an opening in a furnace wall. A section of the lance has an extended spiral groove engaged by a protuberance from a supporting framework to force the lance to reciprocate when the lance is rotated by a motor. The steam to the lance is supplied when its valve is actuated by the lance moved into its extreme forward position.