Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace
Patent
1979-09-18
1981-12-08
Andrews, M. J.
Metallurgical apparatus
Means for treating ores or for extracting metals
By means applying heat to work, e.g., furnace
13 32, 122 6A, 266241, F27D 112
Patent
active
043043968
ABSTRACT:
A cooling box adapted to be installed in the refractory wall of a steel-making arc furnace for passing a cooling medium therethrough to cool the wall. The box comprises a base plate having an inlet and an outlet for the medium, a heat receiving copper plate having a slag lodging portion over the heat receiving surface thereof and a curved portion at each of its upper and lower ends for preventing cracking against thermal and mechanical stress concentration, and a back plate disposed between the plates closer to the heat receiving plate. The back plate and the heat receiving plate define a cooling medium flow chamber in communication with the inlet and the outlet and divided by a plurality of partitions to provide a flow channel of reduced cross section over the entire area of the heat receiving plate.
REFERENCES:
patent: 378550 (1888-02-01), Kennedy
patent: 515694 (1894-02-01), Rotthoff
patent: 2988336 (1961-06-01), Woolard
patent: 3241528 (1966-03-01), Loecher
patent: 3628509 (1971-12-01), Becker et al.
Andrews M. J.
Nikko Industry Co., Ltd.
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