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:
Oct. 19, 1976
Filed:
Dec. 16, 1974
Herbert Deussner, Bensberg, DT;
Kunibert Brachthauser, Bensberg, DT;
Hubert Ramesohl, Bensberg, DT;
Horst Herchenbach, Troisdorf, DT;
Klockner-Humboldt-Deutz Aktiengesellschaft, Cologne, DT;
Abstract
A method and apparatus for thermally treating fine granular material such as for the calcining of cement including a furnace for completing the thermal treatment of the material having a burner therein with the material is first received by parallel plural stage separator systems each having plural cyclone separators, wherein the material is heated by hot exhaust gases and material supplied from first and second separator systems to first and second parallely arranged preheater chambers each having their own burner and receiving the full flow of exhaust gases from a furnace to the separators feeding to the preheater chamber and the preheater chambers connected to discharge their exhaust gases to the separator systems, and the final stage of each separator system discharging the material directly to the furnace.