NOTE:
• Large sizes of buffer tanks, for lime milk as well as for recycle feed,can eliminate the need for double slaker and double mix tank at the high level of redundancy
• “Difficult” fly ash can cause recycle product to contain cementing characteristic, requiring additional plant shut down time for cleaning of systems.
• Fly ash containing silica can cause severe erosion damages in gas dispersers, requiring
additional shut down time. These cases must be specially evaluated.
• Whenever availability guarantees are given, it may be on condition of a reasonable set of
spare parts are available at the plant.