Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenji Miyamoto0
Masahiro Wakayama0
Masakazu Ohno0
Yasuhiro Tsuchie0
Date of Patent
January 18, 2011
0Patent Application Number
122370190
Date Filed
September 24, 2008
0Patent Primary Examiner
Patent abstract
An inspection hole structure 1 forming a furnace inspection hole 2 installed on the reaction shaft ceiling 104 of a flash smelting furnace, comprising a lower-stage water-cooling jacket 3A having an opening 3Aa at the center; an upper-stage water-cooling jacket 3B which is connected integrally to an upper part of said lower-stage water-cooling jacket 3A and forms said inspection hole 2 at the center in cooperation with said lower-stage water-cooling jacket 3A; and a bottom cover water-cooling jacket 4 provided in said lower-stage water-cooling jacket 3A to open or close said opening of said lower-stage water-cooling jacket 3A.
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