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. 17, 1981
Filed:
Nov. 02, 1979
Wolf Goldmann, Beckum, DE;
Dieter Michaelsen, Beckum, DE;
Dieter Dreyer, Ennigerloh, DE;
Dietmar Holsiepe, Ennigerloh, DE;
Peter Tiggesbaumker, Oelde, DE;
Klaus Bauer, Oelde, DE;
Manfred Durr, Oelde, DE;
Heinz G Mersmann, Beckum, DE;
Krupp Polysius AG, Beckum, DE;
Abstract
A process for the heat-treatment of fine-grained material which is preheated in a cyclone preheater, deacidified by additional fuel in a precalcination zone, and subsequently calcined to completion in a revolving tubular kiln. The gas temperature in the cyclone preheater and the material temperature after passage through the precalcination zone are measured, the difference between these temperatures is determined and, when the temperature difference reaches a maximum or minimum value, regulation of the fuel supply to the precalcination zone is switched to manual operation. In this way, the amount of fuel is rapidly adapted to the particular circumstances prevailing in the event of disturbances.