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US 9,915,476 B2Granted
Metallurgical furnace
Assignee9282-3087 Quebec Inc.
InventorJohn Chao
Life of this patent
Estimating the term…
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.
Claims32
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, wherein the force exerting member comprises a plurality of cables, the cables disposed around an outer surface of the segmented outer shell at vertically spaced intervals, and wherein each of the plurality of cables is supported on a support member, and wherein at least one of the plurality of cables has a tension member mounted thereto for adjusting the length of the cable, thereby adjusting the tension of the tension member and the force exerted by the cable.
Dependencies are inferred from the claim text.