Alloy material addition method and apparatus for smelting and me

Details Alloy material addition method and apparatus for smelting and me Alloy material addition method and apparatus for smelting and me

1993-12-03

1995-06-27

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

266 81, 266182, 266216, 266221, 266267, C21B 1302, C21B 716

Patent

active

054276047

ABSTRACT:
A method and apparatus for feeding alloy additive and burden materials to the burden in a vertical shaft furnace working volume generally by gravity-feeding the alloy additive to the furnace tuyere for entrainment in the blast media and transfer to the burden, which improves the recovery rate of the charged additive components in the molten metal and, allows utilization of undersized materials without secondary handling and treatment of the feed materials or utilization of pneumatic feed apparatus.

REFERENCES:
patent: Re34418 (1993-10-01), Bates et al.
patent: 2891782 (1959-06-01), Blackman et al.
patent: 4030894 (1977-06-01), Marlin et al.
patent: 5332419 (1994-07-01), Lemay et al.
"An Introduction to Blast Furnace Coal Injection" by I. F. Carmichael I&SM pp. 67-73 Mar. 1992.
"Coal Gets a New Shot" by George J. McManus Iron Age pp. 31, 32,36,38 Jan. 1989.

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