No.12 空気流動層を用いた褐炭乾燥装置の開発(改質・処理・クリーン化(3))
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概要
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It has been verified using a 5ton/day pilot unit that high moisture lignite can be dried rapidly and safely by hot air fluidized bed. The 60% moisture lignite was crushed to 2mm of average particle size, and it was dried to 20% moisture in 6 minutes by the hot air fluidized bed with 90℃ temperature. Dry lignite temperature was maintained below 60℃ to avoid spontaneous ignition. The safeness of this method has been confirmed since CO gas was not detected through all the tests and dry lignite was not exploded by static electricity level during ignition tests. Since this new dryer is compact, it can be installed in a boiler building and increase plant net efficiency by 2 points.
- 2012-10-15
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- No.12 空気流動層を用いた褐炭乾燥装置の開発(改質・処理・クリーン化(3))