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. 05, 2017
Filed:
Dec. 16, 2011
Jacques Piret, Liege, BE;
Gilles Kass, Soleuvre, LU;
Jacques Piret, Liege, BE;
Gilles Kass, Soleuvre, LU;
PAUL WURTH S.A., Luxembourg, LU;
Abstract
A hearth for a metallurgical furnace, in particular for a blast furnace, the hearth including a wall lining and a bottom lining of refractory material for containing a molten metal bath, the bottom lining including a lower region and an upper region that is arranged to cover the top of the lower region and that is built of ceramic elements, the ceramic elements of the upper region being made of microporous ceramic material including a granular phase made of a silico-aluminous high alumina content granular material and a binding phase for binding grains of said granular material, said microporous ceramic material having thus an maintaining permanently a thermal conductivity lower than 7 W/m.° K.