ELECTRIC INDUCTION HEATING AND MELTING OF AN ELECTRICALLY CONDUCTIVE MATERIAL IN A CONTAINEMENT VESSEL
First Claim
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1. Apparatus for heating or melting an electrically conductive material in a shallow open top containment vessel, the apparatus comprising:
- at least one induction coil horizontally oriented to the open top of the vessel, the at least one induction coil at least partially embedded in a refractory to form a refractory embedded inductor;
each of the at least one induction coils connected to a suitable alternating current power source; and
a positioning apparatus for adjusting the vertical height of the refractory embedded inductor over the surface level of the electrically conductive material in the vessel.
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Abstract
An electric induction heating and melting system is provided for inducing heat in an electrically conductive material placed in a containment vessel by bringing a moveable one or more induction coils at least partially enclosed in a refractory material in close contact with the surface level of the melt in the vessel while supplying ac power to the one or more induction coils. The moveable one or more induction coils can be kept in close contact with the surface level of the melt as the height of the melt in the vessel changes.
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Citations
10 Claims
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1. Apparatus for heating or melting an electrically conductive material in a shallow open top containment vessel, the apparatus comprising:
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at least one induction coil horizontally oriented to the open top of the vessel, the at least one induction coil at least partially embedded in a refractory to form a refractory embedded inductor; each of the at least one induction coils connected to a suitable alternating current power source; and a positioning apparatus for adjusting the vertical height of the refractory embedded inductor over the surface level of the electrically conductive material in the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of heating and melting an electrically conductive material in an open shallow containment vessel, the method comprising the steps of:
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loading the electrically conductive material into the containment vessel; lowering a horizontally oriented refractory embedded inductor comprising at least one induction coil at least partially embedded in a refractory over the surface of the material in the containment vessel; and supplying ac current to each of the at least one induction coils to generate a magnetic field that couples with the material to inductively heat the material. - View Dependent Claims (9, 10)
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Specification