Sintering process

Details Sintering process Sintering process

1976-04-01

1978-01-10

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 3, C22B 108, C22B 116

Patent

active

040677273

ABSTRACT:
A process and apparatus for sintering material are described wherein a moist sintered material is passed by a travelling grate through an ignition zone, a sintering zone, and a cooling zone with strand cooling of the sintered material being effected. The sintered material is passed through a purging zone of higher flow rate and lesser area than a subsequent initial cooling zone, followed by a final cooling zone. Cooling air from both the purging zone and the initial cooling zone is heated by the sintered material and removes dust particles therefrom. The resultant dust-laden air from the purging zone is de-dusted by conventional means, and the dust-containing heated air from the initial cooling zone is conducted to the sintering zone and forced downwardly through the moist material in the sintering zone. The higher pressure over a lesser area in the purging zone results in agitation of the dust in the sintered material and greater removal of dust from the material than would be possible by normal cooling processes.

REFERENCES:
patent: 3244507 (1966-04-01), Linney
patent: 3257195 (1966-06-01), Schwarz
patent: 3323901 (1967-06-01), Dahl
patent: 3332770 (1967-07-01), Wendt
patent: 3649244 (1972-03-01), Cunningham
patent: 3831911 (1974-08-01), Dorville
patent: 3857694 (1974-12-01), Cappel

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