C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
39/94
C21B 9/00 (2006.01)
Patent
CA 1059760
ABSTRACT OF THE DISCLOSURE A method is provided herein for operating heating stoves which are heated successively or alternatively in order then to supply the hot blast required in a blast furnace by staggered parallel operation. The furnace is provided with a group of at least four stoves which group has a common cold air supply manifold connected to at least one turboblower, an auxiliary common cold air supply manifold connected to an air source independently of at least one turbo-blower, an auxiliary common hot air manifold connecting all of the stoves only between themselves and a common hot blast manifold con- nected to the furnace. The method comprising: disconnecting a first one of the stoves from both the cold and hot air common air manifold and equaliz- ing the pressure in the second and the first stoves by connecting them both between themselves by use of the auxiliary common hot air manifold. This supplies air; which is both heated and compressed, to a blast furnace. This method results in extreme energy savings, efficiency of operation and con- sistency of the product being produced.
243165
Rutshtein Alexander
Staroselsky Naum
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