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:
Nov. 22, 2011
Filed:
Apr. 11, 2007
Charles W. Bullinger, Bismarck, ND (US);
Mark A. Ness, Underwood, ND (US);
Nenad Sarunac, Easton, PA (US);
Edward K. Levy, Bethlehem, PA (US);
Richard S. Weinstein, Bismarck, ND (US);
Dennis R. James, Allen, TX (US);
Matthew P. Coughlin, Hibbing, MN (US);
John M. Wheeldon, Birmingham, AL (US);
Charles W. Bullinger, Bismarck, ND (US);
Mark A. Ness, Underwood, ND (US);
Nenad Sarunac, Easton, PA (US);
Edward K. Levy, Bethlehem, PA (US);
Richard S. Weinstein, Bismarck, ND (US);
Dennis R. James, Allen, TX (US);
Matthew P. Coughlin, Hibbing, MN (US);
John M. Wheeldon, Birmingham, AL (US);
Great River Energy, Maple Grove, MN (US);
Abstract
The present invention harvests and utilizes fluidized bed drying technology and waste heat streams augmented by other available heat sources to dry feedstock or fuel. This method is useful in many industries, including coal-fired power plants. Coal is dried using the present invention before it goes to coal pulverizers and on to the furnace/boiler arrangement to improve boiler efficiency and reduce emissions. This is all completed in a low-temperature, open-air system. Also included is an apparatus for segregating particulate by density and/or size including a fluidizing bed having a particulate receiving inlet for receiving particulate to be fluidized. This is useful for segregating contaminants like sulfur and mercury from the product stream.