SISTEMA DE AR DE COMBUSTAO PARA CALDEIRAS DE RECUPERACAO, LICORES RESIDUAIS DE COZIMENTO RESULTANTES DE PROCESSOS KRAFT

An arrangement is disclosed for supplying an air jet form to the furnace of a recovery boiler, where the furnace has a front wall, a rear wall and side walls. Black liquor spraying devices are disposed on the furnace walls at one or several levels of the furnace. A plurality of air ports are located...

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Bibliographic Details
Main Authors ESKO MATTELMAKI, ESA VAKKILAINEN, KARI SAVIHARJU, LIISA SIMONEN, JORMA SIMONEN
Format Patent
LanguagePortuguese
Published 29.09.2006
Edition7
Subjects
AIR SUPPLY
APPARATUS THEREFOR
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
CONSUMING WASTE PRODUCTS BY COMBUSTION
CREMATION FURNACES
DRAUGHT-INDUCING
HEATING
LIGHTING
MECHANICAL ENGINEERING
PAPER-MAKING
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
TEXTILES
WEAPONS
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Summary:An arrangement is disclosed for supplying an air jet form to the furnace of a recovery boiler, where the furnace has a front wall, a rear wall and side walls. Black liquor spraying devices are disposed on the furnace walls at one or several levels of the furnace. A plurality of air ports are located at several horizontal levels for introducing air into the furnace from an air supply. In the arrangement for the secondary air flows, two horizontal air levels at different elevations are arranged above the lower primary levels and below the black liquor sprayer. Secondary air is supplied from two opposite walls and the air ports from each of the two levels are located so that the air jets are introduced in an interlaced pattern having an even number of jets on one opposite wall and an uneven number of jets on the other opposite wall. The air jets of said at least two air levels are located substantially one above each other in substantially vertical rows.
Bibliography:Application Number: PT20020712985T