----- The underfeed fuel bed is the reverse of the overfeed operation (Figure 4-4). Raw fuel is fed in from the bottom above the grate and under the actively burning coal. Incoming air below the grate enters the bed, is heated, and distills volatiles from the coal.
Get a Quote2018-5-11 · and slagging during the pyrolysis and burning period of the coal on the grate. The national average ash content for coals utilised by British power stations is estimated28 at 16 mass%. The fly ash comprising about 50 %28 of the total ash content for a stoker system and 10% for a typical chain grate stoker52 suggests a comparatively
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Get a Quote----- The underfeed fuel bed is the reverse of the overfeed operation (Figure 4-4). Raw fuel is fed in from the bottom above the grate and under the actively burning coal. Incoming air below the grate enters the bed, is heated, and distills volatiles from the coal.
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