EP 3950967 A1 20220209 - BLAST FURNACE WALL-COOLING STAVES
Title (en)
BLAST FURNACE WALL-COOLING STAVES
Title (de)
WANDKÜHLUNGSDAUBEN FÜR HOCHOFEN
Title (fr)
DOUVES DE REFROIDISSEMENT DE PAROI DE HAUT FOURNEAU
Publication
Application
Priority
- JP 2019059836 A 20190327
- JP 2020013231 W 20200325
Abstract (en)
Provided is a wall-cooling stave for a blast furnace provided with a liner in an inside of the furnace, which can prevent the temperature rising of the liner to prolong the service life of the liner. The wall-cooling stave for the blast furnace comprises a stave body 1 provided in its interior with a water channel passing a cooling water therethrough and made from copper or a copper alloy, a plurality of horizontal grooves 13 formed on a surface side of the stave body facing the inside of the furnace to constitute concave portions formed of the plurality of horizontal grooves and convex portions formed between the plurality of horizontal grooves, a plurality of vertical grooves 4 formed in the convex portions between the horizontal grooves in a vertical direction, and a plurality of liners 2 formed so as to fit into the horizontal grooves in the stave body and protrude at their tops into the inside of the furnace, in which gaps 5 in a vertical direction between the plurality of liners is located at positions different from the vertical grooves 4 in the horizontal direction.
IPC 8 full level
CPC (source: EP KR)
C21B 7/10 (2013.01 - EP KR); F27B 1/24 (2013.01 - EP); F27D 1/12 (2013.01 - EP KR); C21B 7/06 (2013.01 - EP); C21C 5/44 (2013.01 - EP); C21C 5/4646 (2013.01 - EP); F27D 1/14 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3950967 A1 20220209; EP 3950967 A4 20220601; BR 112021018935 A2 20211130; CN 113631727 A 20211109; JP 7140270 B2 20220921; JP WO2020196589 A1 20201001; KR 102573457 B1 20230831; KR 20210122826 A 20211012; WO 2020196589 A1 20201001
DOCDB simple family (application)
EP 20776450 A 20200325; BR 112021018935 A 20200325; CN 202080024129 A 20200325; JP 2020013231 W 20200325; JP 2021509483 A 20200325; KR 20217028016 A 20200325