THERMAL POWER PLANT USING LOW-GRADE COAL AS FUEL

Provided is a thermal power plant using low-grade coal as a fuel, which can improve the thermal efficiency of the entire plant. The thermal power plant is comprised of a drying device (3) which dries low-grade coal supplied to an ignite mill (coal mill) (4), and a drying gas heater (13) which heats...

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Main Authors HARADA, TATSUROU, KOYAMA, YOSHINORI, YAMAMOTO, TAKASHI, ISHII, HIROMI, SHINADA, OSAMU, YAMADA, HITOJI, KANEKO, SHOZO, TOKUDA, KIMISHIRO, MOCHIDA, ISAO
Format Patent
LanguageEnglish
French
Japanese
Published 02.09.2010
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Summary:Provided is a thermal power plant using low-grade coal as a fuel, which can improve the thermal efficiency of the entire plant. The thermal power plant is comprised of a drying device (3) which dries low-grade coal supplied to an ignite mill (coal mill) (4), and a drying gas heater (13) which heats air supplied to the drying device (3) to dry the low-grade coal. A capacitor (12) is connected to the drying gas heater (13) via a heat exchanger (19). The exhaust heat of the capacitor (12) is used as a heat source to heat the air. L'invention concerne une centrale thermique utilisant comme combustible du charbon de qualité inférieure, ce qui permet d'améliorer le rendement thermique de l'ensemble de la centrale. La centrale thermique est constituée d'un dispositif de séchage (3) qui sèche le charbon de qualité inférieure amené à un broyeur de lignite (broyeur de charbon) (4), et d'un appareil de chauffage du gaz de séchage (13) qui chauffe l'air amené au dispositif de séchage (3) pour sécher le charbon de qualité inférieure. Un condensateur (12) est connecté à l'appareil de chauffage du gaz de séchage (13). La chaleur s'échappant du condensateur (12) est utilisée comme source thermique pour chauffer l'air.
Bibliography:Application Number: WO2009JP70663