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. 01, 2017

Filed:

May. 19, 2010
Applicants:

Hatsuo Taira, Tokyo, JP;

Taijiro Matsui, Tokyo, JP;

Takayuki Uchida, Tokyo, JP;

Shingo Umeda, Tokyo, JP;

Hiroshi Imagawa, Tokyo, JP;

Shintaro Kobayashi, Tokyo, JP;

Inventors:

Hatsuo Taira, Tokyo, JP;

Taijiro Matsui, Tokyo, JP;

Takayuki Uchida, Tokyo, JP;

Shingo Umeda, Tokyo, JP;

Hiroshi Imagawa, Tokyo, JP;

Shintaro Kobayashi, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27D 1/16 (2006.01); C21C 5/44 (2006.01); C21B 7/06 (2006.01); C21B 9/06 (2006.01);
U.S. Cl.
CPC ...
C21C 5/44 (2013.01); C21B 7/06 (2013.01); C21B 9/06 (2013.01); F27D 1/1621 (2013.01); Y10T 29/49623 (2015.01);
Abstract

The furnace of the present invention includes a body of a furnace having a cylindrical shape; a steel shell which is arranged at an inside surface of the furnace; and a lining refractory which is arranged at an inside of the steel shell and includes a plurality of refractory blocks, wherein: each of the refractory blocks includes a hot-face end surface which has a hexagonal shape exposed to a middle of the furnace, and a cold-face end surface which has a hexagonal shape larger than the hot-face end surface, the cold-face end surface being arranged at an outer periphery side of the furnace; the refractory blocks are arranged such that each position of the hot-face end surface is positioned along the radial direction of the furnace at a predetermined reference position; and the refractory blocks are arrayed along the circumferential direction of an inside surface of the steel shell, thereby being stacked in a honeycomb manner.


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