De-car′bon-izing-fur′nace.
A furnace in which superfluous carbon is burned out of a metal.
The term is a very general one, and may include the boiling and puddling furnaces in which cast-iron is heated to make the metal malleable.
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Decarbonizing and desulphurizing furnace. |
Fig. 1602 shows a decarbonizing and desulphurizing furnace in which the air from the blast-wheel is conducted by chamber
A and tuyeres
B to the fuelchamber, whence the flame proceeds to the dome
N, and acts upon the
pig-iron F, which is piled upon the hearth
E. As the iron melts it runs through the throat
G, and falls down the shaft
K, upon the platform
H, where it rebounds in fine particles, and is exposed to the air from the blast-pipe
L and its tuyeres, collecting in the hearth
I. N is the charging-hole;
M. damper;
J, exit-flue.