Title:
SNORKELS FOR VACUUM DEGASSING OF STEEL
Document Type and Number:
WIPO Patent Application WO2007021207
Kind Code:
A9
Abstract:
Snorkels of recirculating vacuum-degasser of steel installed in the lower section of the vacuum chamber of the degasser unit, one of which is the metal-drawing snorkel equipped with pipe supplying inert gas to ladle and the other is a recirculating snorkel, the lower section of said vacuum chamber being provided with chute for alloying additions, burner hole and gas-suction duct and for vacuum creation in the chamber, internal and external linings of said snorkels being held by steel casings, wherein said metal-drawing snorkel (3) and said recirculating snorkel (4) and rings of the throat (1) of said vacuum chamber (2) of said degasser unit are made as monolithic sets (5) and (6) in which ceramic blocks (10) of the internal lining are made of several layers of rings bound with each other with similar blocks overlapping each other, said external refractory lining (8) of said metal-drawing snorkel (3) and said recirculating snorkel (4) in both of said monolithic sets (5) and (6) being provided with perforation (12), whereas said steel casings (7) of said sets being provided with a cooling system (11).
Inventors:
CZAPKA ZBIGNIEW (PL)
CESARZ WLODZIMIERZ (PL)
DARLAK MARIAN (PL)
SIWIEC JOZEF (PL)
CESARZ WLODZIMIERZ (PL)
DARLAK MARIAN (PL)
SIWIEC JOZEF (PL)
Application Number:
PCT/PL2005/000078
Publication Date:
June 28, 2007
Filing Date:
November 21, 2005
Export Citation:
Assignee:
ZAKLADY MAGNEZYTOWE ROPCZYCE S (PL)
CZAPKA ZBIGNIEW (PL)
CESARZ WLODZIMIERZ (PL)
DARLAK MARIAN (PL)
SIWIEC JOZEF (PL)
CZAPKA ZBIGNIEW (PL)
CESARZ WLODZIMIERZ (PL)
DARLAK MARIAN (PL)
SIWIEC JOZEF (PL)
International Classes:
C21C7/10; C22B9/04
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