F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
F27B 3/06 (2006.01) F27D 99/00 (2010.01) C21B 13/10 (2006.01) F27B 3/10 (2006.01) F27B 9/16 (2006.01) F27B 9/18 (2006.01)
Patent
CA 2392407
An annular rail 6 is fixed on the lower surface of a moving hearth 2, and the rail 6 is supported from below by support rollers 7 provided with elevating devices 8. The moving hearth 2 is continuously or intermittently moved downward by the elevating devices 8 depending on the thickness of a metal oxide layer formed by the deposition of powder of metal oxide agglomerates mixed into the furnace together with the metal oxide agglomerates so that a gap is provided between the surface of the metal oxide layer and the edge of the blade of a discharge screw 4 during operation. A means for preventing the formation of a metal plate and a method for operating the same are provided instead of a means and method including the vertical movement of a discharger for reduced metal, so that the maintenance work can be significantly reduced in a moving- hearth heating furnace, in which metal oxide agglomerates containing a carbonaceous material is placed on a moving hearth, the metal oxide agglomerates are heated and reduced to form reduced metal agglomerates, and the reduced metal agglomerates are discharged from the furnace by a discharger to produce reduced metal.
Hashimoto Sumito
Uemura Hiroshi
Kabushiki Kaisha Kobe Seiko Sho (kobe Steel Ltd.)
Riches Mckenzie & Herbert Llp
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