Arrangement for feeding black liquor into a recovery boiler
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 17, 2003
Grant Date -
Apr 18, 2002
app pub date -
Oct 17, 2001
filing date -
Oct 17, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to an arrangement for introducing black liquor into a furnace of a recovery boiler, said arrangement comprising an elongated tube having an interior surface and an exterior surface, through which tube the black liquor being fed into the furnace is supplied, whereby the black liquor is taken into contact with said interior surface prior to being sprayed into the furnace. The interior surface of said elongated tube is provided with heat transfer elements and surfaces, such as fins or grooves. The heat transfer element or surface increases the heat conductivity between the tube and the black liquor above the conductivity achieved with a normal tube passage.
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- Non-US Classification not provided for expired patents
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