Process for calcining pulverulent material

Details Process for calcining pulverulent material Process for calcining pulverulent material

1984-07-24

1986-04-22

Yuen, Henry C.

Heating

Processes of heating or heater operation

Including passing, treating or conveying gas into or through...

432106, 110347, F26B 308, F27B 1500

Patent

active

045839433

ABSTRACT:
A process for the calcination of a solid pulverulent material comprises the steps of gasifying a solid fuel in a fluidized bed to produce an ascending current of gaseous fuel, and injecting the material in an oxidizing carrier gas into the ascending gaseous fuel current above the fluidized bed of solid fuel to disperse the pulverulent material in the gaseous fuel current, the flow velocity of the gases in the zone of injection of the material into the current being sufficient to entrain the material in the gases and to prevent them from falling into the fluidized bed.

REFERENCES:
patent: 3302597 (1967-02-01), Godel
patent: 4236886 (1980-12-01), Ansen et al.
patent: 4280418 (1981-07-01), Erhard
patent: 4315734 (1982-02-01), Ramesohl et al.
patent: 4324544 (1982-04-01), Blake
patent: 4349331 (1982-09-01), Floter
patent: 4462794 (1984-07-01), Pfeffer, III et al.
patent: 4465460 (1984-08-01), Cosar

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