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:
Feb. 12, 1985
Filed:
Sep. 16, 1982
Bernhard Ruter, Konigsdorf, DE;
Rheinische Braunkohlenwerke AG, Cologne, DE;
Abstract
In a process and apparatus for grinding and drying a solid fuel such as brown coal or lignite to form dust, in a fan type mill, in the presence of a hot drying gas with a low oxygen content, fine components of the fuel in dust form are separated out before the grinding step and dried. The remaining coarser portion of the fuel is introduced into the drying gas before the grinding step, in dependence on the grain size and moisture content of the fuel. The fuel is sifted or sieved before it is introduced into the mill and after the grinding operation, with the components which are not sufficiently fine then being recycled to the grinding operation, the recycled components being introduced into the circuit after the fresh fuel has been introduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile