Apparatus for treating granular material by drying, film-coating or coating
OwnerHerbert Huttlininventor
Life of this patent
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Abstract
In a drum which is rotatable about a horizontal axis of rotation, inlet and outlet lines for a gas, for drying a material contained in the drum, are connected to an immersion body. The immersion body has inlet and outlet openings for the gas and is disposed within the drum to be immersed in the material. The immersion body contains a tunnel through which the material can flow and has arranged in its interior at least some of the inlet and outlet openings for the gas.
Claims20
Apparatus for treating granular material by drying, film-coating, or coating, comprising:
- a drum, which is rotatable about an at least approximately horizontal axis, having a shell and a pair of axially spaced end wall portions arranged at opposite ends of said shell;
- inlet and outlet lines for supplying and removing, respectively, a gas for drying the material;
- and
- an immersion body having a plurality of gas inlet and outlet openings communicating, respectively, with said inlet and outlet lines, said immersion body being disposed within said drum and arranged to be immersed in the granular material, and wherein said immersion body defines an interior portion containing at least some of said gas inlet and outlet openings, said interior portion including a tunnel through which the material can flow.
A method of treating granular material in a drum which is rotatable about an at least approximately horizontal axis, said drum having a shell and a pair of axially spaced end wall portions adjoining opposite ends of said shell, and an immersion body disposed within said drum and arranged to be immersed in the granular material, wherein said immersion body defines an interior portion including a tunnel through which the material can flow, comprising the steps of:
- rotating said drum for causing said material to enter a forward end of said immersion body and to flow through said tunnel;
- supplying gas to, and removing gas from, said interior portion of the immersion body, through a plurality of gas inlet and outlet openings in said interior portion, for drying said material.
Dependencies are inferred from the claim text.