Segmented smelt spout for black liquor furnace

摘要

A segmented smelt spout for a black liquor furnace 12 is made up of a series of units 30, 32. One unit 30 is an end unit. Each unit is in the form of a U-shaped trough. The end unit 30, which forms the furnace end of the spout has a recess at one end for receiving a protrusion on an adjacent unit 32, and lugs for retaining the end of a tensioning cable 56. The units 32 have a recess at one end for receiving a protrusion on the adjacent unit 32, and the protrusion at the other. One or more of the units 32 may be curved along its longitudinal axis. The segments are held together by the tensioning cable.