| 摘要 |
An enclosure (10) for a smelt spout (16) of a chemical recovery boiler comprises a skirt (20) having a central region through which smelt (26) flowing from the smelt spout (16) falls in route to a dissolving tank (24). The central region is defined by a wall (38) and has a trough (32) disposed around its perimeter. The trough (32) is supplied with a fluid (34) that overflows the trough (32) and flows downward across the wall (38) toward the dissolving tank (24) to clean and cool the central region of the skirt (20). A hood cover (18) has a pair of shields (39) disposed on opposite sides of rodding doors (37) and a chain curtain (41) extending between the pair of shields (39) to deflect smelt particles ejected through the rodding doors (37). A primary nozzle system (44) is configured to direct at least one shatter jet (29) onto the smelt (26) flowing from the smelt spout (16). In addition, a secondary nozzle system (46) is configured to direct a plurality of interlaced shatter jets (29) onto the smelt (26).
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