Abstract: An impact pad for use in tundish of continuous casting steel during pouring out of molten steel (6) from the casting ladle into the tundish. The impact pad (1) has side walls (2) provided with barriers (3) distributed spaced apart and staggered in height and in length in the whole extension of the walls (2) or part thereof, the impact pad (1) still comprises an impact bottom (5) provided with corrugations (4) uniformly distributed and staggered in its entirety or part thereof.
Type:
Grant
Filed:
April 19, 2011
Date of Patent:
December 6, 2016
Assignee:
MAGNESITA REFRATARIOS S/A
Inventors:
Thiago Augusto Avila, Bruno Augusto Batista Ribeiro, Herbert Amarildo Dos Santos
Abstract: A lance for top injection in metallurgical vessels is used essentially for the refining process of pig iron and steel production. The lance has at least one inner tube and a cover of refractory concrete. The external profile of the cover of refractory concrete is polygonal. Also described is a method for the production of said lance.
Type:
Application
Filed:
May 10, 2012
Publication date:
November 5, 2015
Applicant:
MAGNESITA REFRATARIOS S/A
Inventors:
Rubens Alves Freire, Leonardo Cruz Arantes Campos, Jorge Lima De Siqueira, Victor Guarnier Domiciano
Abstract: A cooled lance for injection into metallurgical vessels, comprises an inner tube or pipe, with an inlet for gas at the upper part of the injection lance and outlets for the gas at the lower part, and at least one outer tube or pipe that forms a cooling jacket with the inner tube or pipe, wherein the inner tube or pipe is fixed at only one point at said at least one outer tube or pipe and the gas flow takes place only through the cooling jacket formed between the inner tube or pipe and the outer tube or pipe.
Type:
Application
Filed:
May 10, 2012
Publication date:
October 2, 2014
Applicant:
MAGNESITA REFRATARIOS S/A
Inventors:
Rubens Alves Freire, Leonardo Cruz Arantes Campos, Jorge Lima De Siqueira
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