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US 4,005,982 AGranted
Hot-blast stove for a blast furnace
AssigneeDidier-Werke AG
InventorsHelmut Palz, Rudolf Hebel, Otto Bauersachs
Life of this patent
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Abstract
A shaft casing has a funnel-shaped widened upper portion connected to a cupola casing. Between the widened portion and a refractory shaft lining is a supporting frame having a platform on which a cupola lining rests. The frame is connected to the lower end of the widened portion.
Claims12
A hot-blast stove comprising:
- a vertically extending metallic shaft casing having therein a refractory shaft lining surrounding a combustion shaft chamber and a grating shaft, said shaft casing including a lower cylindrical section and an upper funnel-shaped widened section integrally joined to said cylindrical section and flaring upwardly and outwardly therefrom;
- a metallic cupola casing having a configuration of part of a sphere of a diameter greater than that of said cylindrical section, said cupola casing being integrally joined to said shaft casing at the upper end of said funnel-shaped widened section thereof, said cupola casing having therein a refractory cupola lining;
- an annular supporting frame positioned within and rigidly attached to said funnel-shaped widened section, said supporting frame surrounding said shaft lining and being free of direct attachment to said cylindrical section;
- and
- said supporting frame having integrally attached thereto an annular platform supporting said cupola lining.
2 more elements
Dependencies are inferred from the claim text.