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:
Sep. 21, 1982
Filed:
Dec. 16, 1980
Applicant:
Inventor:
Petrus J Kramer, Oudkarspel, NL;
Assignee:
Estel Hoogovens B.V., IJmuiden, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
266 44 ; 75 24 ; 75 27 ; 134-5 ; 264 30 ; 266135 ;
Abstract
Slag deposited on the bottom of a steel making furnace, especially a soaking pit for steel ingots, is difficult to remove. To enable this to be done while the furnace is hot, it is now proposed to supply a substance, e.g. ferro-silicon, which lowers the melting point of the slag, and a substance which reacts exothermically to initiate melting of the slag. When the slag is sufficiently liquefied, it is removed by means of a mechanical grab.