Title:
APPARATUS AND METHOD FOR PRIMING A MOLTEN METAL FILTER
Document Type and Number:
WIPO Patent Application WO/2013/160754
Kind Code:
A8
Abstract:
An apparatus and method are described for effectively priming a non-electrically conductive filter for removal of solid inclusions from liquid metal. In one embodiment, the ceramic filter media is surrounded by a low frequency induction coil (1 -60 Hz) with its axis aligned in the direction of the net metal flow. The coil is positioned to enhance the heating of any metal frozen onto, or in the pores of, the filter element. In one embodiment, the coil is positioned in order to generate Lorentz forces, which act to cause heated metal to impinge on the upper surface of the filter element, enhancing the priming action. Once a filter equipped with such a coil has been primed, it can be kept hot or reheated, and subsequently reused during several batch tapping sequences.
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Inventors:
KENNEDY MARK WILLIAM (NO)
AKHTAR SHAHID (NO)
FRITZSCH ROBERT (DE)
BAKKEN JON ARNE (NO)
AUNE RAGNHILD ELISABETH (SE)
AKHTAR SHAHID (NO)
FRITZSCH ROBERT (DE)
BAKKEN JON ARNE (NO)
AUNE RAGNHILD ELISABETH (SE)
Application Number:
PCT/IB2013/000775
Publication Date:
November 27, 2014
Filing Date:
April 25, 2013
Export Citation:
Assignee:
NORWEGIAN UNIV SCI & TECH NTNU (NO)
International Classes:
C22B9/02; C22B21/06
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