Blast furnace having a cooling device

Details Blast furnace having a cooling device Blast furnace having a cooling device

1980-08-01

1983-03-22

Andrews, M. J.

Metallurgical apparatus

With control means responsive to sensed condition

With analyzer or computation means

266 46, 266 87, 266193, C21B 710

Patent

active

043772773

ABSTRACT:
A blast furnace having a cooling device between its hearth bottom and its foundation. The cooling device includes top and bottom groups of cooling fluid passages with a heat-insulating layer disposed therebetween, the top and bottom groups having independently regulable cooling capacities. Also provided is a method for operating a blast furnace including the steps of measuring a temperature in the hearth bottom, and controlling the cooling of the hearth bottom so that the specification point of the molten product in the hearth bottom maintains a predetermined level.

REFERENCES:
patent: 2915305 (1959-12-01), Craig
patent: 3820770 (1974-06-01), Snow
patent: 4061317 (1977-12-01), Andonier et al.
patent: 4157815 (1979-06-01), Saviski et al.
patent: 4238118 (1980-12-01), Czosnyka et al.
Iron and Steel Engineer, vol. 53, No. 11, Nov. 1976, pp. 48-59.

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