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. 17, 2019
Filed:
May. 15, 2015
Jfe Steel Corporation, Tokyo, JP;
Yusuke Dohi, Fukuyama, JP;
Yoshiko Maeta, Ashikaga, JP;
Kazutoshi Hanada, Chiba, JP;
Kiyoshi Fukada, Fukuyama, JP;
Takashi Matsui, Fukuyama, JP;
Michio Honma, Kurashiki, JP;
Masahiro Shinohara, Kurashiki, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A method for manufacturing coke having a high strength and excellent extrusion capability. The method includes a preparing step of blending two or more coal brands to prepare a coal blend, a stirring and mixing step of stirring and mixing the coal blend to disintegrate at least a part of pseudo-particles that have been formed by agglomeration of coal particles in the coal blend, and a carbonizing step of charging the stirred and mixed coal blend into a coke oven to carbonize the stirred and mixed coal blend. Additionally, a mixing apparatus is used in the stirring and mixing step that has a capability of controlling a degree of mixing of the coal blend to be 0.85 or more at 60 seconds after start of a mixing operation. The degree of mixing is calculated by the following equation (1):degree of mixing=(σ)/(σ)  (1).