FLUIDIZED BED HEAT RECOVERY DEVICE
The present invention relates to a fluidized-bed heat recovery apparatus for uniformly combusting solid materials including incombustibles, and for recovering heat energy while discharging the incombustibles. In a fluidized-bed reactor (1), a gas diffuser configured to give different fluidizing velo...
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Main Authors | , , , , , |
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Format | Patent |
Language | English French German |
Published |
24.04.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to a fluidized-bed heat recovery apparatus for uniformly combusting solid materials including incombustibles, and for recovering heat energy while discharging the incombustibles. In a fluidized-bed reactor (1), a gas diffuser configured to give different fluidizing velocities in a fluidized-bed is provided at a furnace bed. A first weakly fluidized region (WF) having a small fluidizing velocity is formed to generate a downward flow of the fluidized medium in the first fluidized region (WF), and a strongly fluidized region (SF) having a large fluidizing velocity is formed to generate an upward flow of the fluidized medium in the strongly fluidized region (SF), thereby forming a swirling flow of the fluidized medium in the fluidized bed. Outside the strongly fluidized region (SF), a second weakly fluidized region (WF) having a small fluidizing velocity is formed to generate a downward flow of the fluidized medium, so that a part of the fluidized medium flows from the strongly fluidized region (SF) into the second weakly fluidized region (WF). A heat recovery device having a heat transfer surface is located in the second weakly fluidized region (WF). |
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Bibliography: | Application Number: EP20190767467 |