Method for opening discharge outlets

Dispensing – Processes of dispensing – Molten metal

Patent

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Details

222593, 266236, B22D 3700

Patent

active

056350953

ABSTRACT:
A method for shutting down and starting up a chemical recovery process of the type comprising burning concentrated black liquor in the furnace of a recovery boiler to produce a flue gas and a hot molten smelt in the bottom of said furnace and discharging the hot molten smelt in a continuous yet variable quantity via a smelt spout into a dissolving tank partially filled with an aqueous solution, said method comprising:

REFERENCES:
patent: 4202533 (1980-05-01), Daussan et al.
patent: 4750649 (1988-06-01), Fahey et al.

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