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. 28, 1978
Filed:
May. 25, 1977
Applicant:
Inventors:
Wilfried Kreft, Beckum, DE;
Wolf Goldmann, Neubeckum, DE;
Assignee:
Polysius AG, Neubeckum, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C01F / ;
U.S. Cl.
CPC ...
75 26 ; 75 91 ; 423625 ; 423-1 ; 423659 ; 423175 ; 106100 ; 432 14 ; 432 15 ;
Abstract
Fine solid material is preheated in a first zone, then heated to the final treatment temperature by passing it through a flame in a second zone, and then separated in a third zone from the hot exhaust gases leaving the second zone. The separated exhaust gases are led to the first zone for preheating the material. A fuel feed stock is gasified to produce a combustible gas, and such gas is burned in the second zone to produce said flame.