Process for fine coal cleaning
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United States of America Patent
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Mar 7, 1989
Grant Date -
N/A
app pub date -
Dec 31, 1987
filing date -
Dec 31, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for automating fine coal cleaning including monitoring the operation of a flotation cell for separating coal from ash impurities by automatically detecting the coal content of the tailings from the cell and controlling the supply of additives to the cell to optimize slurry coal recovery and automatically monitoring the fluid level of the coal slurry in a dewatering filter tub to control the supply of additives to the filter tub and functioning of a dewatering filter.
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