The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2009
Filed:
May. 23, 2006
Applicants:
Antti Raukola, Kangasala, FI;
Kari Haaga, Tampere, FI;
Aki Hakulinen, Tampere, FI;
Inventors:
Assignee:
Kvaerner Power Oy, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F22B 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to an arrangement in a recovery boiler into which spent liquor to be incinerated and combustion air are supplied, the arrangement comprising superheaters (-) in the upper part of the recovery boiler for recovering heat, at least one boiler bank () located in a flue gas duct part () known as the second pass, immediately after the recovery boiler, and at least one economizer (-) in a duct part after the second pass in the recovery boiler flue gas duct (). The invention comprises an economizer () located parallel with the boiler bank () in the second pass.