Re-devulcanization method based on circulating fluidized bed boiler flue

The invention discloses a re-devulcanization method based on a circulating fluidized bed boiler flue, namely, a moistening or/and alkalic-thickening device is arranged on a boiler tail flue between a current circulating fluidized bed boiler hearth and an electricprecipitator, wherein: the moistening...

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Bibliographic Details
Main Authors JIANG HETUAN, ZHU XUEZHI
Format Patent
LanguageChinese
English
Published 23.05.2012
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:The invention discloses a re-devulcanization method based on a circulating fluidized bed boiler flue, namely, a moistening or/and alkalic-thickening device is arranged on a boiler tail flue between a current circulating fluidized bed boiler hearth and an electricprecipitator, wherein: the moistening or/and alkalic-thickening device consists of a moistener, an air ducting device and a slag separator. The invention combines spraying calcium in the fluidized bed boiler for devulcanization, moistening for activation devulcanization at the boiler tail, thus fully intercepting desulfurater not participating the reaction in the boiler, continuing to absorb sulfur dioxide, enhancing utility rate of desulfurater and efficiency of devulcanization at utmost, and leading the efficiency of devulcanization to be over 95%. The method can reduce investment cost of enterprises, thus enterprises can operate economically while satisfying environment-friendly discharge requirement.
Bibliography:Application Number: CN2009115088