Low metamorphic grade coal drying and dewatering process

The invention discloses a method for drying and dehydrating low metamorphism coal. The method for drying and dehydrating of low metamorphic coal provided by the invention is that a coal drying apparatus, two ends of which are respectively provided with an air inlet and an air outlet, is used for per...

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Bibliographic Details
Main Authors YANG HANHONG, LU SHUN, TANG QINGSONG, ZHANG WENHUI, JIANG ZHONGSHAN, LIU YONG
Format Patent
LanguageChinese
English
Published 15.10.2008
Subjects
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
DRYING
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
FEEDING FUEL TO COMBUSTION APPARATUS
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:The invention discloses a method for drying and dehydrating low metamorphism coal. The method for drying and dehydrating of low metamorphic coal provided by the invention is that a coal drying apparatus, two ends of which are respectively provided with an air inlet and an air outlet, is used for performing drying and dehydrating of the low metamorphic coal, wherein the temperature of the gas into the air inlet at the end part of the coal drying apparatus is between 60 and 300DEG C. The method for drying and dehydrating low metamorphic coal belongs to a drying technology with low temperature and low humidity, has excellent safety performance and high drying efficiency, and resolves the problems of easy firing, easy causing dust explosion, etc., and is a safe and efficient coal drying technology without changing coal property. The method for drying and dehydrating low metamorphic coal particularly adapts to dry the coal with under 400DEG C burning point, low metamorphism and high activity or other flammable mat
Bibliography:Application Number: CN20081103034