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.

Date of Patent:
Aug. 13, 1991

Filed:

Jul. 25, 1990
Applicant:
Inventors:

Rudolf Fischer, Dorsten, DE;

Horst Willaschek, Oberhausen, DE;

Assignee:

MAN Gutehoffnungshutte AG, Oberhausen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
266241 ; 266246 ;
Abstract

A system that employs air to directly cool heat-accessible metallurgical vessels that are provided with separate annular supports, characterized in that air channels (6) are positioned on the outside of the annular support (5) with a number of air-injection pipes (7) distributed along the circumference and extending radially from the channels to the inner wall of the annular support, whereby outlets (8) slope up into the gap (3) between the annular support and the outer wall (1) of the metallurgical vessel, in that air is injected into the cooling system through one or both load-bearing connectors (4), and in that the difference in pressure within the system is less than 2000 mm H.sub.2 O and the air travels at less than 25 m/sec.


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