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Technology:
chain
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Other characteristics:
horizontal, discharge
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Speed:
Min.: 8 ft/s (2.44 m/s)
Max.: 12 ft/s (3.66 m/s)
Metsos submerged chain conveyors gather, chill and dry bottom ash. From the boiler, ash descends through a discharge hopper into a chamber filled with water. The progressive-loop, dual-strand submerged chain conveyor then cools and disposes the ash. These conveyors move the ash at about 8 to 12 feet per minute (similar rate as our dry drag conveyors) with up to a 35 degree slope maximum. The angle allows draining of excess water. The submerged chain conveyors are built on rollers permitting easy boiler access to facilitate maintenance.