Stack for the thermal treatment of material

Details Stack for the thermal treatment of material Stack for the thermal treatment of material

1980-03-25

1982-02-16

Rosenberg, P. D.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

266194, C21B 710

Patent

active

043156207

ABSTRACT:
Wall structure for a smelting stack is comprised of a cooling fluid flow pipe membrane layer comprised of a series of vertical, parallel arranged pipes extending between upper and lower manifold members. The pipe membrane completely surrounds a hot zone in the smelting stack. The upper and lower manifolds extend interiorly of the pipe wall membrane to define an alcove in which there is positioned a series of vertically arranged lengths of insulation cladding which are spaced from one another by gaps filled with fire-proof materials. The gaps contain elements of the pipe membrane layer directed interiorly of the pipe membrane. A waste-gas stack may be mounted directly adjacent the smelting stack with a common wall therebetween. The waste-gas stack wall comprises only a pipe membrane. The primary function of the stack wall structure in the waste-gas stack is to remove heat from the waste gases; whereas, the primary function in the smelting stack is to retain heat within the stack and enable the furnace wall structure to withstand the smelting heat. A common wall serves both these functions. Since the load-bearing elements of the wall structure are the pipe membranes, the stack wall structures may be supported in a blast furnace system by suspension from the upper manifold or erection upon the lower manifold.

REFERENCES:
patent: 2465463 (1949-03-01), Lindemuth
patent: 3706343 (1972-12-01), Saiga

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