Heat treatment device comprising a screw provided with an electrically insulating strip
AssigneeE.T.I.A.—Evaluation Technologique, Ingenierie Et Applications
InventorsOlivier Lepez, Philippe Sajet
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Abstract
The invention relates to a device for the heat treatment of a product, comprising an enclosure, means of conveyance inside the enclosure, which comprise a screw mounted so as to rotate in the enclosure about a geometrical rotational axis and means for rotating the screw about said axis, and means for heating the screw by Joule effect. According to the invention, the screw comprises a strip which is made of an electrically insulating material and is applied to the screw so as to form an outer circumference of the screw.
Claims6
A device for applying heat treatment to a substance, the device comprising:
- an enclosure;
- conveyor means for conveying the substance between an inlet of the enclosure and an outlet of the enclosure, which conveyor means comprise a screw mounted to rotate inside the enclosure about an axis of rotation and include drive means for driving the screw in rotation about said axis;
- and
- means for heating the screw by the Joule effect;
- wherein the screw includes a strip made of electrically insulating material that is fitted on the screw so as to form an outer periphery of the screw.
Dependencies are inferred from the claim text.