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US 11,542,188 B2Granted
Continuous glass melting tank with an immersed stirring body
AssigneeABB Schweiz AG
InventorsEner Salinas, Xiaojing Zhang, Hongliang Yang, Göran Eriksson, Ulf Sand
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Abstract
A glass furnace for continuous operation, including a melting tank for containing a glass melt, and at least one magnetic actuator configured to generate a time-varying magnetic field suitable for moving a stirring body immersed in the glass melt.
Claims21
A magnetic stirring arrangement for a glass furnace with a melting tank for containing a glass melt, the magnetic stirring arrangement comprising:
- an electrically conductive stirring body configured to be immersed in the glass melt for stirring the glass melt;
- and
- a magnetic actuator configured to generate a time-varying magnetic field suitable for moving the stirring body,
- wherein the stirring body has an ellipsoidal shape with a minor diameter of at least 0.175 m and major diameter of at least 0.25 m and a magnetic flux density of the magnetic field is at least 0.1 T where it reaches the stirring body.
1 more element
A glass furnace for continuous operation, comprising:
- a melting tank for containing a glass melt;
- an electrically conductive stirring body configured to be immersed in the glass melt for stirring the glass melt;
- and
- a magnetic actuator configured to generate a time-varying magnetic field suitable for moving the stirring body immersed in the glass melt,
- wherein the stirring body has an ellipsoidal shape with a minor diameter of at least 0.175 m and major diameter of at least 0.25 m and a magnetic flux density of the magnetic field is at least 0.1 T where it reaches the stirring body.
2 more elements
A method of continuous operation of a glass furnace with a melting tank containing a glass melt, the method comprising:
- feeding batch material into the glass melt;
- and
- allowing the glass melt with the batch material to flow into a heated combustion chamber,
- generating a time-varying magnetic field suitable for moving a stirring body immersed in the glass melt to stir the glass melt, wherein the stirring body is electrically conductive,
- wherein the stirring body has an ellipsoidal shape with a minor diameter of at least 0.175 m and major diameter of at least 0.25 m and a magnetic flux density of the magnetic field is at least 0.1 T where it reaches the stirring body.
2 more elements
Dependencies are inferred from the claim text.