Effects of Coal-Fired Boiler Flue Gas Conditioning on Fly Ash Conveying and Storage Systems

摘要

Moisture can present significant challenges in the operation of fly ash handling systems, even at low (1 to 2 percent) levels. In traditional fly ash materials, moisture is the "glue" that holds ash particles together via capillary forces thereby enhancing the cohesive bonds between particles. This causes the ash to bridge and rat-hole and become difficult to discharge from bins, hoppers and vessels.