HEAT TREATMENT DEVICE COMPRISING A SCREW PROVIDED WITH AN ELECTRICALLY INSULATING STRIP
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United States of America Patent
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Mar 11, 2015
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Apr 24, 2014
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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.
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