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:
Mar. 08, 2011
Filed:
Aug. 11, 2006
Applicants:
Kari Haaga, Tampere, FI;
Hannu Koskela, Tampere, FI;
Ari Saarela, Lempäälä, FI;
Inventors:
Assignee:
Metso Power Oy, Tampere, FI;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for improving the operation safety of the smelt spout area of a recovery boiler, which smelt spout area comprises a working area (), as well as smelt spouts () connected to the lower part of the boiler for directing the smelt from the boiler to a dissolving tank (). In the method the smelt spouts () are separated from the working area () by a shielding wall () arranged movable in relation to the smelt spouts. The invention also relates to a smelt spout area of a recovery boiler.