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US 2017/0030646 A1Published application
Metallurgical furnace
Assignee9282-3087 Quebec (dba TMC Canada)
InventorJohn CHAO
Life of this patent
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Abstract
An electrode seal for use in a metallurgical furnace, the furnace comprising a furnace space heated by electrodes extending through an aperture into the furnace space. The electrode seal comprises at least three sets of shoes in consecutive lateral contact, each shoe having a biasing member for biasing a surface of the shoe toward one of the electrodes thereby allowing the one electrode to longitudinally move within the electrode seal while providing electrical insulation between the electrode and the aperture.
Claims36
A metallurgical furnace comprising:
- a refractory, surrounding a furnace space, for dissipating heat when the furnace space is heated;
- a force exerting member for contracting a segmented outer shell around the refractory, toward the furnace space, as the refractory contracts when the furnace space is cooling.
Dependencies are inferred from the claim text.