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:
Sep. 22, 2009
Filed:
Aug. 15, 2005
Alan Morrow, Cumberland, RI (US);
Fayyaz Hussain, Hopkinton, MA (US);
Lewis Gordon, North Attleboro, MA (US);
Randy Dwiggins, Somerville, NJ (US);
Alan Morrow, Cumberland, RI (US);
Fayyaz Hussain, Hopkinton, MA (US);
Lewis Gordon, North Attleboro, MA (US);
Randy Dwiggins, Somerville, NJ (US);
Invensys Systems, Inc., Foxboro, MA (US);
Abstract
Methods and systems for controlling a cement finishing mill, and operating the mill at an optimal point, are disclosed. To determine an optimal point of operation, values of mill power and sound are collected and compared to values predicted by a model to determine if the mill is choking. This choking determination is used in one of two processes to determine an optimal point of operation for the mill. In the first process, as long as the mill is not choking, the amount of fresh feed input to the mill is incrementally increased; when choking occurs, the amount of fresh feed is decreased until choking ceases. In the second process, the amount of fresh feed input to the mill is increased and decreased in an oscillating manner over time, to find the amount of feed that results in the mill approaching, but never reaching, a choking state.