Electricite De France - Service National

Expanchimie S.a.r.l.

Alain Girault

Jacques Nuns

Alain Rancurel

The invention relates to a molecular distillation apparatus of the type comprising a metallic conical rotor (12) rotatably driven and fed in its center with a liquid to be distilled, a vacuum bell (10) defining an enclosure housing the cone and means for inductively heating the rotor which are located beneath and in proximity to the latter. According to the invention, the heating means comprise at least two concentric inductors (100a, 100b, 100c) supplying different thermal power densities to homologous regions of the rotor and an inner inductor (100a) supplies a greater thermal power density to the rotor than the power density supplied to the rotor by an outer inductor (100c). The invention also relates to a process for manufacturing an assembly of a rotor and inductors for such an apparatus.

Molecular distillation apparatus having induction-heating

The apparatus comprises an endless conveyor band (2) of insulating material on which are mounted at even distances apart receptacles (7) composed of a metal adapted to receive separate portions of a dish to be cooked and inductors (10a, 10b) disposed below the upper reach (6) of the conveyor. The inductors have a diameter roughly equal to one-half of the diameter of the receptacles and are disposed in at least two rows in the direction of movement of the conveyor (2) symmetrically relative to the axis of movement of the receptacles. The inner edges of the inductors (10a, 10b) are located beyond a vertical plane containing the axis of movement of the receptacles (7) so as to insure a homogeneous heating of the receptacles.

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Moret S/Loing, France

Alain Girault