Immersion heater for molten metal
First Claim
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1. A device comprising:
- a vessel for containing molten metal, the vessel having a length, a width, a top surface, a first chamber and a second chamber;
a plurality of immersion heaters positioned in line across the width of the vessel, each of the plurality of immersion heaters comprising an outer cover of material resistant to molten metal and a heating element inside of the outer cover, the heating element connectable to an energy source, the outer cover comprised of a material formulated to be resistant to the molten metal, wherein the outer cover protects the heating element from contacting the molten metal when the immersion heater is positioned in the molten metal;
one or more insulated covers to cover a portion of the top surface of the vessel to retain heat in the vessel; and
wherein the plurality of immersion heaters divides the vessel into the first chamber and the second chamber and there is at least one rotary degasser in the first chamber and at least one degasser in the second chamber.
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Abstract
The invention relates to a device for heating molten metal by the use of a heater that can be immersed into the molten metal. This immersion heater includes an outer cover formed of one or more materials resistant to the molten metal in which the immersion heater is to be used, and a heating element inside of the outer cover, where the heating element is protected from contacting the molten metal.
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Citations
23 Claims
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1. A device comprising:
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a vessel for containing molten metal, the vessel having a length, a width, a top surface, a first chamber and a second chamber; a plurality of immersion heaters positioned in line across the width of the vessel, each of the plurality of immersion heaters comprising an outer cover of material resistant to molten metal and a heating element inside of the outer cover, the heating element connectable to an energy source, the outer cover comprised of a material formulated to be resistant to the molten metal, wherein the outer cover protects the heating element from contacting the molten metal when the immersion heater is positioned in the molten metal; one or more insulated covers to cover a portion of the top surface of the vessel to retain heat in the vessel; and wherein the plurality of immersion heaters divides the vessel into the first chamber and the second chamber and there is at least one rotary degasser in the first chamber and at least one degasser in the second chamber. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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6. The device of 1, wherein the outer cover is molded over each heating element.
Specification