F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/58
F27B 1/20 (2006.01) C21B 7/20 (2006.01)
Patent
CA 1168442
A B S T R A C T The delivery of charge material to the hearth of a pressurized blast furnace under the influence of gravity is accomplished without the necessity of changing the direction of material flow at a point exterior of the furnace. The rate of flow of the charge material, which moves in a vertical stream, is controlled by a metering device including a pair of overlapping register elements which define a variable size aperture which remains generally symmetrical with respect to the stream axis.
399308
Legille Edouard
Lonardi Emile
Mailliet Pierre
Hirons & Rogers
Wurth (paul) S.a.
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