THERMAL POWER PLANT USING LOW-GRADE COAL AS FUEL
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United States of America Patent
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Issued Date -
Jan 12, 2012
app pub date -
Dec 10, 2009
filing date -
Feb 27, 2009
priority date (Note) -
Abandoned
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Abstract
A thermal power plant that uses low-grade coal as fuel and allows for increased thermal efficiency of the entire plant is provided. The thermal power plant includes a drying device (3) that dries the low-grade coal to be supplied to a lignite mill (coal pulverizer) (4), and a drying-gas heater (13) that heats air to be supplied to the drying device (3) so as to be used for drying the low-grade coal. A condenser (12) and the drying-gas heater (13) are connected with each other via a heat exchanger (19), and exhaust heat from the condenser (12) is used as a heat source for heating the air.
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