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:
Dec. 01, 2009
Filed:
Jan. 29, 2004
Applicant:
Albert D. Larue, City of Green, OH (US);
Inventor:
Albert D. LaRue, City of Green, OH (US);
Assignee:
Babcock & Wilcox Power Generation Group, Inc., Barberton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23D 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An over fire air (OFA) port arrangement for a pulverized coal-fired boiler or furnace has at least one OFA port through each of the sidewalls for injecting OFA to increase residence time for each burner level. Plural OFA ports may be employed, staggered both vertically and horizontally to effectively deliver over fire air to the burner flames at the appropriate time and location to most efficiently reduce the formation of fuel NO. OFA port configurations for both single-wall and opposed-wall fired furnaces and boilers are provided.