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:
Jan. 17, 2012
Filed:
Sep. 15, 2008
Douglas Whitney Crafts, Longmeadow, MA (US);
Douglas Whitney Crafts, Longmeadow, MA (US);
ALSTOM Technology Ltd, Baden, CH;
Abstract
An exhauster bypass systemreceives an input flow of gases and entrained fine solid particlesfrom a pulverizerand separates the input flow into a particle-deficient gas flow and a particle-laden gas flow. The particle-deficient gas flow is provided to a fan of an exhauster assembly through a central outlet, while the particle-laden gas flow is provided to the exhauster assembly away from the fan through a bypass outlet. The bypass system includes a housing that provides a chamber for separating the particles from the hot gases to produce the particle-laden gas flow and a particle-deficient gas flow. The bypass system further includes a plurality of vertically stacked louvers disposed before the central outlet for separating the particles from the input gas flow. The outlet may include a seal or bypass fan in fluid communication with the bypass outlet to provide the particle-laden gas flow to the exhauster assembly.