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:
Jul. 26, 1983
Filed:
Jan. 13, 1982
Osvaldo A Oller, Cape Girardeau, MO (US);
Eric R Hansen, Omaha, NE (US);
Gerard L Eaker, Cape Girardeau, MO (US);
Gulf & Western Industries, Inc., New York, NY (US);
Abstract
A process for the production of cement raw mix which takes into account variations which may occur in the raw materials being introduced into the raw mix, particularly such variations which occur in the limestone. The process disclosed involves the periodic adjustment in the estimated chemical composition of the raw materials used to produce the raw mix in response to the degree of divergence between the actual proportions (W.sub.i) of the raw materials mixed and the 'theoretical' proportions (T.sub.i) which theoretically would have generated the raw mix that was produced over the previous time interval. Based upon the revised estimated chemical compositions, the desired characteristics of the raw mix over the next specific subsequent interval are reselected to adjust the overall chemical composition of the raw mix towards the overall desired characteristics, while maintaining continuity in the raw mix being produced and avoiding undesirable fluctuations in the composition. The disclosed method incorporates the detection of weighfeeder malfunctions through the comparison of the degree of divergence for each raw material with selected maximum permissible divergences. Actual characteristics of the raw mix produced are estimated through the use of a time weight raw mix matrix.