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:
Dec. 12, 1978

Filed:

May. 26, 1976
Applicant:
Inventors:

Kazumasa Taguchi, Amagasaki, JP;

Tsutomu Nishida, Kobe, JP;

Masaharu Kitajima, Kakogawa, JP;

Kan Aketa, Kakogawa, JP;

Isao Fujita, Kobe, JP;

Mamoru Onoda, Miki, JP;

Nobuyuki Imanishi, Kobe, JP;

Ryo Watanabe, Kobe, JP;

Assignee:

Kobe Steel, Ltd., Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
75-5 ; 75 41 ; 75257 ;
Abstract

In the present invention, after a powdered iron ore has been subjected to granulation and firing into spherical pellets, a further crushing is applied while adjustment of the particle size of the crushed pellets is made so that the outer surface of the pellets is composed of spherically formed surfaces and crushed surfaces. By doing so, improvements are made in the angle of repose and in the reducing characteristic of iron ore pellets, and eventually an efficient and highly economical blast furnace operation is attained.


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