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1. (WO2015043900) VESSEL LOWER PART, METALLURGICAL VESSEL FORMED THEREWITH, AND ELECTRIC ARC FURNACE AND METHOD FOR THE OPERATION OF SAME

Pub. No.:    WO/2015/043900    International Application No.:    PCT/EP2014/068781
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Fri Sep 05 01:59:59 CEST 2014
IPC: F27B 3/19
F27D 3/14
F27D 3/15
Applicants: PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Inventors: ABEL, Markus
MÜLLER, Alexander
Title: VESSEL LOWER PART, METALLURGICAL VESSEL FORMED THEREWITH, AND ELECTRIC ARC FURNACE AND METHOD FOR THE OPERATION OF SAME
Abstract:
The invention relates to a vessel lower part (1) for a metallurgical vessel (2), comprising a vessel base (1b), a melting chamber (1c), a vessel wall (1a) which surrounds the melting chamber (1c) and which consists of a refractory material, and at least one tapping device (3) for drawing off liquid metal (4a, 4b) from the melting chamber (1c), wherein at least one first tapping device (3a) is present which is designed according to the principles of a liquid siphon and which has at least one inlet opening (6, 6a, 6b) in the vessel wall (1a) for transferring the liquid metal (4a) from the melting chamber (1c) into the first tapping device (3a), and wherein at least one cooling device (17) is present in a region (1aa) of the vessel wall (1a) adjoining the at least one inlet opening, which cooling device is designed to cool a surface (1a') of the region (1aa) of the vessel wall (1a) which is in contact with the melting chamber (1c). The invention also relates to the metallurgical vessel (2) and to an electric arc furnace (100) equipped therewith, as well as to a method for operating the latter.