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. 23, 1979
Filed:
Apr. 18, 1978
Applicant:
Inventor:
Robert Schockmel, Esch, LU;
Assignee:
ARBED - Acieries Reunies de Burbach-Eich-Dudelange S.A., Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03D / ;
U.S. Cl.
CPC ...
65 19 ; 65 20 ; 65141 ;
Abstract
Slag sand is produced by first mixing a stream of molten slag with a quantity of between 0.5 m.sup.3 and 0.7 m.sup.3 of water per ton of slag to chill the slag while leaving it above the pyroplasticity threshold. Thereafter water at a rate of between 0.3 m.sup.3 and 0.4 m.sup.3 is added to the slag to stiffen the stream and this stiffened stream is fed to a drum rotating at a rate between 600 rpm and 1000 rpm to break it up into fine granules which are collected on a foraminous belt.