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:
Dec. 11, 1979
Filed:
Aug. 10, 1978
Masaaki Higuchi, Fukuyama, JP;
Genji Nakatani, Fukuyama, JP;
Haruo Ito, Fukuyama, JP;
Masamichi Matsuda, Fukuyama, JP;
Yoshinori Suetake, Kasaoka, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Abstract
A runner extending from a blast furnace to a slag pit, water spray unit for manufacturing granulated slag or slag ladle is partly or wholly composed of a plurality of trough elements each made from copper or copper alloy. Each trough element comprises a hollow body having an inner space which is divided into sections by a plurality of partitions to define throughout the inner space of the body a series of passages in which a cooling medium is allowed to flow without stagnation. The cooling medium within the hollow body of the trough element is introduced under a predetermined pressure from a pipe line for supplying cooling medium into the body, whereby the cooling medium freely flows at a relatively high velocity in the passages defined by the partitions and molten slag glowing in contact with the surface of the trough element is cooled to a desired temperature which prevents wear and loss of the element and makes it possible to produce hard granulated slag from the molten slag.