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:
May. 10, 2005
Filed:
May. 16, 2002
James David Sandlin, Bainbridge, GA (US);
Lewis M. Carter, Jr., Donalsonville, GA (US);
James David Sandlin, Bainbridge, GA (US);
Lewis M. Carter, Jr., Donalsonville, GA (US);
Lewis M. Carter Manufacturing Co., Donalsonville, GA (US);
Abstract
A method of beneficiating coal in a dry process includes separating raw coal from a coal mine into coal fines and larger pieces of coal using pressurized air, separating the larger pieces of coal according to size, removing ash from the larger pieces of coal on an air table, and further removing ash from the larger pieces of coal using a size-discriminating device to obtain a beneficiated coal product. The invention also includes an apparatus for the dry beneficiation of coal. The apparatus includes at least one air separating device, at least one air table, and at least one first and second shakers which separate the coal by size and remove ash from the coal. The air table effectively removes ash from infed coal without the need for a fluidizing media.