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:
Jul. 20, 2010
Filed:
Dec. 29, 2005
Applicants:
Tero Luomaharju, Kämmenniemi, FI;
Jani Lehto, Tampere, FI;
Inventors:
Tero Luomaharju, Kämmenniemi, FI;
Jani Lehto, Tampere, FI;
Assignee:
Metso Power Oy, Tampere, FI;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for treating fly ash of flue gas exiting a furnace of a fluidized bed boiler. A side flow conveying a first fraction of fly ash is separated from a flow conveying a second fraction of fly ash. After the separation, the side flow conveying the first fraction has a higher solids content than the flow conveying the second fraction. The first fraction of fly ash is separated from the side flow at a separation temperature of at least 400° C., whereafter the first fraction of fly ash is discharged from the process.