Prefabricated multiple density blast furnace runner

Details Prefabricated multiple density blast furnace runner Prefabricated multiple density blast furnace runner

1981-03-18

1982-09-21

Andrews, M. J.

Metallurgical apparatus

Means for treating ores or for extracting metals

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

266236, 266280, F27D 314

Patent

active

043503250

ABSTRACT:
A runner for hot metal as from a blast furnace is formed from a series of interconnected modular units which are prefabricated from refractory based materials in layers of different densities resulting in a calculable exposure life determined by the density and the amount and temperature of the molten metal handled by the runner. The modular units are formed from a mixture including aluminum oxide, clay, refractory cement and phosphoric acid that has a known life dicated by the density of compaction of the layers of the material in the finished product.

REFERENCES:
patent: 3480125 (1969-11-01), Ash
patent: 3600480 (1971-08-01), Parsons
patent: 3863907 (1975-02-01), Pierson Sr. et al.
patent: 4039172 (1977-08-01), Yoshida
patent: 4262885 (1981-04-01), LaBate

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