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iron-oxide-pellet
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Simulation of thermal profile in a single pellet during drying process with CFD method
, Article Proceedings of the 24th International Mining Congress of Turkey, IMCET 2015, 14 April 2015 through 17 April 2015 ; 2015 , Pages 797-803 ; 9786050107050 (ISBN) ; Namehi, A ; Vali, H ; Shahrokhshahi, H. R ; Soltani, H ; Alamdari, E. K ; Cheraghi, A ; Karadeniz, M ; Gulsun Kilic, M ; Torun Bilgic, E ; Basarir, H ; Onel, O ; Sharif University of Technology
TMMOB Maden Muhendisleri Odasi
2015
Abstract
Green iron oxide pellets are indurated with thermal treatment in pelletizing plant to achieve sufficient mechanical properties and to be used in iron-steel industry. In the first stage, the pellets are dried with hot air coming from the firing unit. High heat transfer makes the evaporation rate exceeding the outgoing steam rate from the pellets and as a result, increasing the inner pressure of the pellets and fragment. On the other hand, low heat transfer causes low production rate. Using the related equations and considering the pellets' moisture and porosity and applying the pellets' condition on parameters such as specific heat capacity and heat conductivity, an acceptable standard is...
The Feasibility of Decreasing FeO Index in the Final Product of Pellet Factory of Golgohar Mining and Industrial Company
, M.Sc. Thesis Sharif University of Technology ; Askari, Masoud (Supervisor) ; Yoozbashizadeh, Hossein (Supervisor)
Abstract
As one of the most important agglomeration methods, pelletizing has a very important place in the iron and steel production chain. In the present study, the feasibility of improving FeO index in the final product of Pellet Factory No.1 of GolEGohar Mining and Industrial Company was investigated. The remaining FeO in the iron oxide pellet represents the amount of Magnetite that was not oxidized during the pelletizing process. The remaining FeO in the primary Magnetite is a disturbing structure for the direct reduction process and will cause a decrease in the compressive strength of the pellet (CCS) and as a result it will be crushed. Therefore, the percentage of the remaining FeO in the...