A Suggested Blending Routing for Iron Ore from El-Gedida Mines.

Document Type : Research Studies

Authors

1 Professor and Chairman., Industrial Production Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

2 Retired EX-Associate Professor., Assiut University.

3 Retired EX-Assistant Professor., Al-Munifiya University.

Abstract

The Iron ore deposits of El-Bahariya Oasis at El-Gedida are the only ores used by the Iron and steel Company ( Hadisolb ). These ores are located in three different regions with different contents and quantities : Platau (39.6 mt., 58.2 % Fe ). West Valley ( 60 mt., 50.2 % Fe ) and N.E.and East Valley ( 11.98 mt., 48.82 % Fe). 
Hadisolb requires 6666 mt/D (2.4 mt/Y) of a blend containing Fe > 51 *, CI < 0.6 %. Mn< 2.4 %, Sio2 0.085 % and Al2O3 < 0.365 %. 
Optimization techniques were applied to produce a plan for the use of El-Gedida ores. Calculations for the proper amounts of ore to be blended to suit the cut-off limits for Fe, Cl, and Mno set forth by Hadisolb were made. Other alternatives to maximize the time span of utilization and produce a blend that Hadisolb can treat effectively were searched. 
The time to use all three localities to produce a blend satisfying the limit of the set restrictions for Fe, Cl, and Mno is found to be 36.9 years for the Platau, 59.9 years for the West Valley and 36.9 years for N.E. and E. Valley. Therefore, thirty seven years is the limit set by the consumption of the platau ore with high Fe and cl and low Mn contents. 
The maximum time to consume all three localities at the same time was found to be forty six and half years, but it will produce a blend having the following composition : 52.89 $ Fe, 2.68 % Mno, 0.5389 % Ci, and 6.8 * Sio. if Hadisolb can treat such a blend chemically or physically to produce its required limitations, it will lengthen the time span of utilization of all these localities by about ten years. 

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