Method of sintering pellets

Details Method of sintering pellets Method of sintering pellets

1980-01-23

1982-03-23

Lewis, Michael L.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C22B 120

Patent

active

043210856

ABSTRACT:
Green pellets are sintered by drying, pre-heating, firing and cooling steps, at least the drying and pre-heating steps being carried out with said pellets resting, in the form of a bed, on an endless gas-permeable conveyor and at least the first part of the drying operation being carried out with a gas which passes upwardly through said conveyor and the pellet bed, while subsequent temperature-increasing treatment steps carried out on the conveyor are effected with a hot gas flowing downwardly through the pellet bed and the conveyor. At least the first part of the drying operation is effected with heat stored in the conveyor and/or in a hearth layer for the pellet bed arranged on said conveyor by using a drying gas which comprises substantially cool air and which is heated during its passage through the conveyor and/or the hearth layer by the heat stored therein.

REFERENCES:
patent: 3661553 (1972-05-01), Frans
patent: 4023963 (1977-05-01), Bonnaure
patent: 4168951 (1979-09-01), Drugge
Swedish Patent Application Ser. No. 7612793-5 and English Translation.

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