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Factors Affecting Ballability of Mixture Iron Ore Concentrates and Iron Oxide Bearing Wastes in Metallurgical Processing

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Iron oxide bearing wastes (IOBS) are produced at every part of processing stage of sinter, molten iron and steel production. They are hard to handle and in many cases are stockpiled only to be a source of environmental pollution. However, they can be balled into pellets. Pellets characterized by good ballability values are transportable and recyclable as they can withstand stress without disintegrating back to dust. Yet, ballability is affected by certain factors like the grain sizes of the materials, the moisture and binder contents of the ball mix, wettability of the balled materials and the processing perimeters of the granulator. The objective of this research work is to investigate the factors affecting ballability of mixture of iron ore concentrates and iron oxide bearing wastes in metallurgical processing. The parameters under consideration were: grain size of materials, the moisture contents, speed of balling disc, IOBS and bentonite (binder) contents of the balled mix. The investigation was carried out by balling different volume fractions of mix containing iron oxide concentrate and IOBS using a balling disc and testing the resulting balls for green compressive strength using an universal testing machine. It was found that the ballability of the mixture of iron ore concentrate and IOBS increases as grain sizes of the materials reduce but increases as the moisture contents and IOBS content increase up to an optimum value of moisture content in the mix before it starts to reduce. The ballability also increases along with the speed of the granulator (balling disc) within the limit of this work. An increase in ballability with a slight raise in bentonite content in the mix was observed as well.
Słowa kluczowe
Rocznik
Strony
235--242
Opis fizyczny
Bibliogr. 20 poz., tab., rys.
Twórcy
autor
  • Department of Mechanical Engineering, Covenant University, Ota, Ogun State, Nigeria
  • Department of Metallurgical and Materials Engineering University of Lagos, Akoka, Lagos State, Nigeria
autor
  • Nigeria Building and Road Research Institute, Engineering Materials Research, Nigeria
  • Department of Mechanical Engineering, Covenant University, Ota, Ogun State, Nigeria
Bibliografia
  • 1. Abioye A.A., Abioye O.P., Ajayi O.O., Afolalu S.A., Fajobi M.A., Atanda P.O., 2018. Mechanical and microstructural characterization of ductile iron produced from fuel- fired rotary furnace. International Journal of Mechanical Engineering and Technology, 9(1), 694–704.
  • 2. Abioye A.A., Atanda P.O., Abioye O.P., Afolalu S.A., Dirisu J.O. 2017. Microstructural characterization and some mechanical behaviour of low manganese austempered ferritic ductile iron. International Journal of Applied Engineering Research, 12(23), 14435-14441.
  • 3. Adetunji O.R., Musa A.A., Afolalu S.A. 2015. Computational modelling of chromium steel in high temperature applications. International Journal of Innovation and Applied Studies, 12(4), 1015.
  • 4. Adetunji O.R., Ude O.O., Kuye S.I., Dare E.O., Alamu K.O., Afolalu S.A. 2016. Potentiodynamic polarization of brass, stainless and coated mild steel in 1M Sodium chloride solution. International Journal of Engineering Research in Africa, 23, 1-6.
  • 5. Afolalu S.A., Salawu E.Y., Okokpujie I.P., Abioye A.A., Abioye O.P., Udo M., Ikumapayi O.M. 2017. Experimental analysis of the wear properties of carburized HSS (ASTM A600) cutting tool. International Journal of Applied Engineering Research, 12(19), 8995-9003.
  • 6. Afolalu S.A., Adejuyigbe S.B., Adetunji O.R., Olusola O.I. 2015. Production of cutting tools from recycled steel with palm kernel shell as carbon additives. International Journal of Innovation and Applied Studies, 12(1), 110.
  • 7. Ahmed Y.M.Z., Mohammed F.M. 2005. Variation in physio-chemical properties of iron oxide pellets using bentonite with calcium hydroxide as binder. In: Metallugia Italiana, pp. 31- 33.
  • 8. Ajayi O.O., Omowa O.F., Abioye O.P., Omotosho O.A., Akinlabi E.T., Akinlabi S.A., Afolalu S.A. 2018. Finite element modelling of electrokinetic deposition of Zinc on mild steel with ZnO-Citrus sinensis as nano-additive. In: TMS Annual Meeting & Exhibition. Springer, Cham, pp. 199-211.
  • 9. Blast J. 2007. Mining technologies in the steel industries. Metallurgical Plant and Technology (MPT) International, 3, 32–38.
  • 10. Borowski G. and Kuczmaszewski J. 2005. Investigation on briquetting of metal wastes from bearing industry. Waste Management & Research, 5(23), 473–478.
  • 11. Deqing Zhu, Jian Pan, Guanzhou Qiu, John Clout, Changan Wang, Yusuf Guo, Chenfan Hu, 2004. Mechanco – chemical activation of magnetic concentrate for improving its pelletability by high pressure roll grinding. Iron and Steel Institute of Japan (ISIJ) International, 44(2), 310–315.
  • 12. Dirisu, J.O., Asere, A.A., Oyekunle, J.A., Adewole, B.Z., Ajayi, O.O., Afolalu, S.A., Joseph, O.O., Abioye, A.A. 2017. Comparison of the elemental structure and emission characteristics of selected PVC and non PVC ceiling materials available in Nigerian markets. International Journal of Applied Engineering Research, 12(23), 13755-13758.
  • 13. Esezobor D.E., Balogun S.A., Adeosun S.O., 2008. Development of waste-free technology in steel industry. Global Symposium on Recycling, Waste Treatment and Clean Technology (REWAS 2008) October 12–15, Cancum, Mexico, pp. 267–276.
  • 14. Harun Md. Rashid Ar., 2001. Centrifugal granulating process for preparing drug-pharmacy. University of Finland, pp. 11–14.
  • 15. Kaas W., Maas H., Erbent H.S. and Steinnofel H. 1979. Briquitting of Dezincified. Wastes from Iron and Steelmaking. Metallugical Plant, and Technology, 4, 11–14.
  • 16. Kristensen H.G. and Schaefer T. 1987. Granulation: A review of pharmaceutical wet granulation. Drug Develo
  • 17. pment and Industrial Pharmacy, 13(4- 5), 803–872.
  • 18. Newitt D.M. and Conway-Jones J.M. 1958. A contribution to the theory and practice of granulation. Transaction of Institution of Chemical Engineers, 36, 422–442.
  • 19. Satry K.V.S. et al. 2008. Pelletization of fine coals. A report submitted to U.S.A. Department of Energy Pittburgh Energy Centre, Pittsburgh, USA, pp. 114.
  • 20. Satry K.V.S. 1984. Improving of balling of finely ground concentrates. Metallugists, 28(5), 151–154.
  • 21. Topiary R.H. and Topiary V.R. 2007. Instruction to modern iron making. Khan Publishers, 2 –B, Nath Market, Nai Sarak, Delhi – 110006.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-2d0d8396-e05e-44fa-b00b-11f6f7bc2871
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