US 12,276,458 B2
Method for maintenance of a cooling assembly for a metallurgical furnace
Marco Ricke, Coesfeld (DE); Rene Schneider, Goch (DE); Frank Tennagels, Bottrop-Kirchhellen (DE); and Nicolas Maggioli, Thionville (DE)
Assigned to PAUL WURTH S.A., Luxembourg (LU); and PAUL WURTH DEUTSCHLAND GMBH, Wiesbaden (DE)
Appl. No. 17/633,775
Filed by PAUL WURTH S.A., Luxembourg (LU); and PAUL WURTH DEUTSCHLAND GMBH, Wiesbaden (DE)
PCT Filed Aug. 4, 2020, PCT No. PCT/EP2020/071913
§ 371(c)(1), (2) Date Feb. 8, 2022,
PCT Pub. No. WO2021/028267, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 101347 (LU), filed on Aug. 9, 2019; and application No. 101462 (LU), filed on Oct. 31, 2019.
Prior Publication US 2022/0276004 A1, Sep. 1, 2022
Int. Cl. F27D 1/12 (2006.01); C21C 5/46 (2006.01); F27D 1/00 (2006.01); F27D 9/00 (2006.01)
CPC F27D 1/12 (2013.01) [C21C 5/4646 (2013.01); F27D 2001/0046 (2013.01); F27D 2009/0024 (2013.01); F27D 2009/0029 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for maintenance of a cooling assembly for a metallurgical furnace, the cooling assembly comprising:
a cooling plate disposed inside of a furnace shell of the metallurgical furnace;
a cooling pipe traversing a shell opening in the furnace shell and being connected to the cooling plate; and
a compensator disposed around the cooling pipe for forming a seal between the cooling pipe and the furnace shell,
wherein the method includes performing at least one cutting operation with at least one cutting device comprising at least one fixture and a cutting tool that is movably connected to the fixture for a guided movement with respect to the fixture, wherein the fixture is mounted to the cooling pipe, whereby the cutting device is aligned with respect to the cooling pipe, and the cutting tool is guidedly moved while performing the cutting operation.