Apparatus for preparing binderfree hot briquettes for smelting p

Details Apparatus for preparing binderfree hot briquettes for smelting p Apparatus for preparing binderfree hot briquettes for smelting p

1989-04-25

1990-06-19

Andrews, Melvyn J.

Metallurgical apparatus

With control means responsive to sensed condition

With temperature sensor

266155, 266172, F27B 1520

Patent

active

049346652

ABSTRACT:
The present invention relates to an apparatus for preparing binder-free hot briquettes for smelting purposes consisting of iron-containing pyrophorous finely divided solids. Before briquetting, the finely divided solids are blown-through by means of a rising oxidating heated gas flow and held in a fluidized bed. The gas flow is controlled in such a way that by oxidation of at least part of the metallic iron the temperature of the finely divided solids is increased to about 450.degree. to 65020 C. Subsequently, the solids are briquetted in hot condition. Characteristic for the invention is that there is added to the fluidized bed sensible heat from the outside until oxidation of part of the metallic iron starts, and that the fluidized bed is submitted to the effect of vibrations favoring the the conveying of the solids over the fluidized bed.

REFERENCES:
patent: 4196891 (1980-04-01), Sanzenbacher et al.
patent: 4533384 (1985-08-01), Rellermeyer et al.

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