Roller kiln provided with a drying tunnel, particularly for cera

Details Roller kiln provided with a drying tunnel, particularly for cera Roller kiln provided with a drying tunnel, particularly for cera

1979-11-21

1981-08-25

Camby, John J.

Heating

With work cooling structure

Entering and leaving work exchange heat

34216, 34217, 432145, 432168, 432176, 432179, F27D 1502, F27B 304, F26B 1900

Patent

active

042856698

ABSTRACT:
A roller tunnel kiln for firing a drying refractory material advanced along the refractory rotatable rollers includes an upper section comprising a prefiring zone, a firing zone, a first forced cooling zone, a natural cooling zone and a second forced cooling zone. Parallel to the upper section along the length thereof a drying zone is arranged provided with refractory rotatable rollers for advancing movement of the material to be dried. A distributional tunnel is mounted parallel to the drying zone and is connected with the prekiln zone or with the forced cooling zone so that hot gases mixed with cool ambient air are directed into the distributing tunnel provided with openings communicating the latter with the drying zone. The hot gases at drying temperatures are further directed into drying tunnel in the direction opposite to that of the material to be dried.

REFERENCES:
patent: 1867772 (1932-07-01), Smalley
patent: 2100222 (1937-11-01), McFarland

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