Combustion system for a black liquor recovery boiler

Furnaces – Refuse incinerator – For liquid refuse

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Details

110346, F23G 704

Patent

active

057157634

ABSTRACT:
A black liquor recovery boiler furnace having quaternary air injection ports located in the furnace walls in the vicinity of, or at approximately the same elevation as, the black liquor injection guns. The quaternary air injection ports are located between the secondary air injection ports and the tertiary air injection ports. Air introduced at this level provides a much more efficient mixing and combustion without solid particle carryover. A zone of increased or intensified combustion is established around the black liquor injection guns. The injection site combustion zone is at an intermediate location to the combustion zones conventionally supplied by the secondary and tertiary air ports. In accordance with a preferred embodiment of the invention, the black liquor injection guns inject the black liquor into the furnace in a downwardly inclined direction. Still more preferably, the injection guns employ a splash plate which is oriented to cause the solid particles impinging the plate to flow downwardly in the furnace.

REFERENCES:
patent: 2594267 (1952-04-01), Wilcoxson
patent: 2789881 (1957-04-01), Hochmuth
patent: 3574500 (1971-04-01), Huouvilainen et al.
patent: 3928531 (1975-12-01), Boatwright et al.
patent: 4359950 (1982-11-01), Leffler et al.
patent: 4545308 (1985-10-01), Zaterka
patent: 4940004 (1990-07-01), Jansen
patent: 5001992 (1991-03-01), Higgins et al.
patent: 5007354 (1991-04-01), Uppstu
patent: 5022331 (1991-06-01), Simonen
patent: 5044327 (1991-09-01), Hunt
patent: 5121700 (1992-06-01), Blackwell et al.
patent: 5139412 (1992-08-01), Kychakoff et al.
patent: 5305698 (1994-04-01), Blackwell et al.
patent: 5368471 (1994-11-01), Kychakoff et al.
patent: 5450803 (1995-09-01), Svensk et al.
patent: 5478440 (1995-12-01), Paju
patent: 5551354 (1996-09-01), Crofut et al.
Improved Air Systems for Modern Kraft Recovery Boilers, Pulp & Paper Canada (1987), pp. 122-125.

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