Determination of the some grinding properties of different barite ores by conventional mills

Yıl 2022, Cilt: 11 Sayı: 2, 431 - 438, 15.04.2022

Güler Bayar Meftuni Yekeler

https://doi.org/10.28948/ngumuh.1001793

Öz

The particle size distributions of the different barite ore samples were obtained by dry grinding in the conventional mills. The ball media and rod media produced different products for nearly pure barite and the gang associated barite samples. Four different barite samples were subjected to grinding tests. The -212 µm size fraction was obtained for high BaSO4 grade barite samples of B1 and B2 at 8 minutes from the ball media and 3 minutes from the rod media employed. On the other hand, the same size fraction was obtained for the low BaSO4 grade samples that contained gang minerals (mostly quartz) of B3 and B4 at 16 minutes for the ball media and at 6 minutes for the rod media. The slowing down effect which is caused by fine particles accumulation in the mills was reached at shorter grinding times for the high grade barite samples of B1 and B2.

Anahtar Kelimeler

Barite, Grinding, Ball mill, Rod mill, Slowing down effect.

Farklı barit cevherlerinin konvansiyonel değirmenlerde bazı öğütme özelliklerinin belirlenmesi

Öz

Farklı kompozisyonlardaki barit cevheri numuneleri konvansiyonel değirmenlerle kuru öğütülerek tane boyut dağılımları elde edilmiştir. Safa yakın ve gang içeren numuneler bilyalı ve çubuklu ortamlarda öğütülerek elde edilen ürünler farklılıklar göstermiştir. Dört farklı barit cevheri öğütme testlerine tabi tutulmuş olup, yüksek BaSO4 tenörlü B1 ve B2 numuneleri, bilyalı değirmende 8 dakika, çubuklu değirmende 3 dakika öğütülmeyle -212 µm tane boyut fraksiyonunu vermiştir. Diğer taraftan, düşük BaSO4 tenörlü B3 ve B4 gibi gang içerikli (çoğunlukla kuvars içeren) barit cevher numuneleri ise bilyalı değirmende 16 dakika, çubuklu değirmende 6 dakika öğütmeyle -212 µm tane boyut fraksiyonunu vermiştir. Değirmenlerde yavaşlama etkisi olayına sebep olan ince tanelerin artması, safa yakın barit numunelerinde (B1 ve B2) daha kısa öğütme sürelerinde rastlanmıştır.

Anahtar Kelimeler

Barit, Öğütme, Bilyalı değirmen, Çubuklu değirmen, Yavaşlama etkisi.

Kaynakça

• P. A. Ciullo, Industrial Minerals and Their Uses: A Handbook and Formulary. In: P. A. Ciullo, The Industrial Minerals – Barite, by Noyes Publication, New Jersey, ABD, 21-23, 1996.
• L. Qi, J. Ma, H. Cheng and Z. Zhao, Preparation of BaSO4 nanoparticles in non-ionic w/o microemulsions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 108(1), 117–126, 1996. https://doi.org/10.1016/0927-7757(95)03317-3.
• D. Katırcıoğlu Bayel, Ö. Y. Toraman ve Ş. G. Özkan, Baritin yaş öğütülmesinde öğütme parametrelerinin etkisi. Yer Altı Kaynakları Dergisi 14, 31–43, 2018.
• J. R. Kyle, The Barite Industry and Resources of Texas. Bureau of Economic Geology, University of Texas at Austin, 85, 1994.
• E. Sibbing, Barytes, Raw Material for Fillers and Chemicals, in Fleming, R. F. S., Ed., Proceedings, First Industrial Minerals International Congress: London, Metal Bulletin Ltd., 150-158, 1975.
• D. A. Brobst, Barium Minerals, In D.D. Carr, Editor, Industrial Minerals and Rocks, 6th edition, Society for Mining, Metallurgy and Exploration, Inc. Littleton, Colorado, 125-134, 1994.
• J. Massone, Technology and uses of barium and strontium compounds: Industrial Minerals, No. 177, 65-69, 1982.
• J. Griffiths, Barytes: Non-drilling applications: Industrial Minerals, no. 201, 21-33, 1984.
• Özel İhtisas Komisyonu Raporu (ÖİKR), Kalkınma Bakanlığı, Madencilik Politikaları, On Birinci Kalkınma Planı (2019-2023), Yayın No: Kb: 3041 - Öik: 822, Ankara, 2018.
• C. Aldrich, Consumption of steel grinding media in mills – A Review. Miner. Eng. 49, 77–91, 2013. https://doi.org/10.1016/j.mineng.2013.04.023.
• J. Jeswiet and A. Szekeres, Energy consumption in mining comminution. Procedia CIRP 48, 140–145, 2016. https://doi.org/10.1016/j.procir.2016.03.250.
• V. Deniz, Y. Akkurt and Y. Umucu, A new model on breakage behaviour of a laboratory impact mill. The 19th International Mining Congress and Fair of Turkey, pp. 229–232, Turkey, Izmir, 2005.
• L. G. Austin and O. Trass, Size Reduction of Solids Crushing and Grinding Equipment, in: M.E. Fayed, L. Otten (Eds.), Handbook of Powder Science and Technology, Van Nostrand Reinhold, The Netherlands. pp. 586–634, 1984. https://doi.org/10.1007/978-1-4615-6373-0_12
• K. S. Liddell, Machines for fine milling to improve the recovery of gold from calcines and pyrite, Proceeding of the International Conference on Gold, Extractive Metallurgy of Gold, 2, pp. 405- 417, 1986.
• H. Hacıfazlıoğlu, İnce ve çok ince öğütme için alternatif değirmen tiplerinin tanıtılması, AKÜ Fen Bilimleri Dergisi 01, 17–30, 2009.
• M. Yekeler, Bilyalı değirmenle kuvarsın yaş öğütülme kinetiği, Endüstriyel Hammaddeler Sempozyumu, İzmir, pp. 179-184, 1995.
• L. G. Austin and P. Bagga, An analysis of fine dry grinding in ball mills. Powder Technology, 28(1), 83-90, 1981. https://doi .org /10.1016/0032-5910(81)87014-3.
• E. Teke, M. Yekeler, U. Ulusoy and M. Canbazoglu, Kinetics of dry grinding of industrial minerals: calcite and barite. International Journal of Mineral Processing, 67(1–4), 29–42, 2002. https://doi.org/10.1016/S0301-7516(02)00006-6.
• A. Ozkan, M. Yekeler and S. Aydogan, Breakage parameters of some minerals and coals ground in a laboratory size ceramic mill. Indian Journal of Engineering and Materials Sciences, 10(4), 269–276, 2003.
• M. J. Metzger and B. J. Glasser, Simulation of the breakage of bonded agglomerates in a ball mill. Powder Technology, 237, 286–302, 2013. https://doi. org/ 10.1016/j.powtec.2012.12.006.
• R. P. King, Modeling and Simulation of Mineral Processing Systems, first ed. Butterworth-Heinemann., 160, 2001.
• V. Deniz, The effects of ball filling and ball diameter on kinetic breakage parameters of barite powder. Advanced Powder Technology, 23(5), 640–646, 2012. https://doi.org/10.1016/j.apt.2011.07.006
• M. Yekeler, A. Özkan ve E. Teke, Barit mineralinin ince öğütülmesinin kinetiği. 2. Endüstriyel Hammaddeler Sempozyumu, 154-159, İzmir, Türkiye, 1997.
• K. B. Quast and P. G. Hicks, Laboratory Studies in Comminution: Part VI; The specific rate of breakage for rod and ball milling of quartz (1), 1–7, 1998.