(b) Finely divided materials, including economizer,
ESP or baghouse fly ash, and scrubber residues, if
moistened by contact with wet bottom ash, may form
attached deposits that can build up to large masses.
Scrubber residues are worse than fly ash alone. Figure
74 shows dry scrubber residues deposited on the bottom
ash mass outside the extractor, and Fig. 8 shows the
resulting deposit accretion.
(b) Finely divided materials, including economizer,ESP or baghouse fly ash, and scrubber residues, ifmoistened by contact with wet bottom ash, may formattached deposits that can build up to large masses.Scrubber residues are worse than fly ash alone. Figure74 shows dry scrubber residues deposited on the bottomash mass outside the extractor, and Fig. 8 shows theresulting deposit accretion.
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