Heating – Processes of heating or heater operation – Including passing – treating or conveying gas into or through...
Patent
1979-11-14
1981-09-01
Camby, John J.
Heating
Processes of heating or heater operation
Including passing, treating or conveying gas into or through...
423175, 432 58, 432105, 432106, F27B 1500, F27B 736, F27B 702
Patent
active
042869447
ABSTRACT:
A calcining installation of improved thermal efficiency comprises a long rotary tubular kiln having an upstream inlet, a downstream outlet and an air inlet at the downstream end. A burner is positioned in the upstream half of the kiln, the upstream part of the kiln constituting a calcining zone and the downstream kiln part constituting a cooling zone for the calcined material. A cyclone separator for separating dust from the kiln flue gases has an inlet and a dust outlet, and an additional cyclone separator has an inlet, a gas outlet and a material outlet connected to the upstream end of the kiln. A pipe connects the gas outlet of the additional cyclone separator to the inlet of the cyclone separator, the pipe having a vertical portion and an inlet for the raw material in the lower part of the vertical portion.
REFERENCES:
patent: 1652168 (1927-12-01), Fasting
patent: 2063233 (1936-12-01), Debuch
patent: 4119396 (1978-10-01), Abelitis et al.
Bitsch Robert
Labriot Gilbert
Lebesue Jean
Wattelle Michel
Aluminium Pechiney
Camby John J.
Fives-Cail Babcock
Kelman Kurt
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