Device for heat treatment of a product comprising at least one heating element and corresponding method
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 heat treatment of a product, including: an enclosure comprising a casing made of refractory material; a screw mounted to turn in the casing about a geometric axis of rotation in order to move the product between an inlet of the casing and an outlet of the casing, the screw furthermore forming a heating means for heat treatment of the product by supplying electricity to the screw. According to the invention, the device comprises at least one heating element for heating the casing in operation, the heating element being arranged inside at least one of the walls of the casing. The invention also relates to a corresponding method.
Claims18
A device for subjecting a substance to heat treatment, the device comprising:
- an enclosure having a lining of refractory material;
- a screw mounted to rotate inside the lining about an axis of rotation in order to move the substance between an inlet to the lining and an outlet from the lining, the screw also forming heater means for applying heat treatment to the substance when the screw is electrically powered;
- the device being characterized in that it includes at least one heater element for heating the lining in service, the heater element being arranged within at least one of the walls of the lining.
Dependencies are inferred from the claim text.