D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 11/12 (2006.01) F22B 31/00 (2006.01) F23G 7/04 (2006.01)
Patent
CA 2180243
The invention relates to a recovery boiler for combustion of waste liquors. It comprises a furnace whose base and walls include a multiplicity of liquid-cooled tubes and whose base constitutes a collection point for inorganic substances in molten form, with air and waste liquor being introduced into the furnace and the combustion gases being conveyed upwards in the boiler. The invention is characterized essentially in that the cross-sectional area of the furnace at a first lower level exceeds the cross- sectional area of the furnace at a second level higher up in the furnace.
L'invention concerne une chaudière de récupération pour la combustion de liqueurs résiduaires qui comporte un corps de chauffe dont la base et les parois comprennent une multiplicité de tubes refroidis par liquide, la base (21) constituant un point de collectee des substances organiques en fusion, de l'air et de la liqueur résiduaire étant introduits dans le corps de chauffe et les gaz de combustion remontant dans la chaudière. La chaudière selon l'invention est caractérisée principalement en ce que la section du corps de chauffe à un premier niveau inférieur (1) est plus grande que la section de celui-ci à un deuxième niveau (2), plus haut dans ledit corps.
Marks & Clerk
Metso Power Ab
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