Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1976-05-26
1978-12-12
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 41, 75257, C21B 110
Patent
active
041294378
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.
REFERENCES:
patent: 3012970 (1961-12-01), Banks et al.
patent: 3383199 (1968-05-01), Schmidt
patent: 3938987 (1976-02-01), Ban
patent: 3948612 (1976-04-01), Schulten-Baumer
patent: 3966457 (1976-06-01), Limpach
patent: 3969103 (1976-07-01), Capes et al.
patent: 3980465 (1976-09-01), Nishida et al.
patent: 3986864 (1976-10-01), Hofmann et al.
McGannon; Making, Shaping and Treating of Steel; New York (USS) 1964 p. 188.
Webster, New International Dictionary (unabridged) New York, 1961 p. 203.
Aketa Kan
Fujita Isao
Imanishi Nobuyuki
Kitajima Masaharu
Nishida Tsutomu
(Kobe Steel, Ltd.)
Andrews M. J.
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