The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1987
Filed:
Jun. 20, 1985
Karl Buhler, Nussbaumen, CH;
Anton Menth, Nussbaumen, CH;
BBC Brown, Boveri & Company, Limited, Baden, CH;
Abstract
To assure a high degree of operating reliability during operation of pot furnaces, their bath electrode (2, 14, 17, 20) in the pot (1) must be cooled intensively by external cooling. If the pot (1) is in the pot furnace station, cooling of the bath electrode (2, 14, 17, 20) is not a problem. But the case is different when the pot (1) is transported to various stations which can be geographically far apart--e.g., on the one hand, to a melting furnace and, on the other hand, to a continuous casting machine. In the latter case, feed and removal devices for a coolant have been constantly carried with the pot (1). However, this makes a considerable expense necessary. By the dimensioning according to the invention of the bath electrode (1, 14, 17, 20) and/or by attachment of additional cooling bodies (15, 18, 22, 14), the bath electrode (2, 14, 17, 20) can be successfully uncoupled from external cooling (8, 9, 10) over the relatively long handling period that is necessary for operational requirements. By the steps according to the invention, the bath electrode (2, 14, 17, 10) can be kept under the critical temperature during the period of uncoupling from the cooling (8, 9, 10), e.g., in the area of its electric connection (11). Moreover, by said steps the liquid/solid boundary layer between the melt (4) and the front surface of the bath electrode (2, 14, 17, 20) can be kept stable in position at the end of the preset time of the uncoupling in comparison with the beginning of the uncoupling.