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:
Jun. 29, 2004
Filed:
Jul. 16, 2001
Bruce W. Ramme, Okauchee, WI (US);
Bryan C. Fisher, San Antonio, TX (US);
Wisconsin Electric Power Company, Milwaukee, WI (US);
Abstract
A method and apparatus for the application of beat to remove ammonia compounds from fly ask, thereby making the fly ash a marketable product is disclosed. The method includes the steps of providing an amount of fly ash wherein at least a portion of the amount of fly ash comprises particulates having ammonia compounds affixed to the particulates, and exposing the fly ash to flowing air having a temperature of at least 1,500° F. (815 ° C.) such that the fly ash is maintained in the flowing air until the fly ash reaches a temperature of at last 900° F. (482 ° C.). The apparatus ( ) includes a source of fly ash ( ) comprising particulates having ammonia compounds affixed to at least some of the fly ash particulates, a beating chamber ( ) including a treatment bed comprising a floor ( ) having openings a fly ash supply conduit ( ) in communication with the heating chamber ( ) and the source of fly ash ( ) for transferring fly ash from the source of fly ash to the treatment bed of the heating chamber, a source of heated air ( ), an air supply conduit ( ) in communication with the source of heated of heated air ( ) and the heating chamber ( ) for providing a flow of heated air to the treatment bed of the beating chamber for contacting the fly ash on the treatment bed with the flow of air, a heated air conduit ( ) in communication with the beating chamber ( ) for transferring the flow of heated air form the heating chamber, and an ash removal conduit ( ) in communication with the heating chamber ( ) for transferring heated fly ash from the heating chamber.