Research Article
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Year 2020, Issue: 045, 215 - 224, 31.12.2020

Abstract

References

  • [1] Meyers R.A., Laskowski, J.S., Walters, A.D., (2001), Coal Preparation, Encyclopedia of physical science and technology, Energy, Editor-in-Chief: Robert A. Meyers, 277.
  • [2] Anonim, (2017), http://www.sourcewatch.org/index.php/Environmental_impacts_of_coal, İndirme Tarihi: 25.05.2017.
  • [3] Kemal, M., Arslan, V., (1999), Kömür teknolojisi, Dokuz Eylül Üniversitesi Mühendislik Fakültesi Yayınları, 33, 373.
  • [4] Uslu, T., Sahinoglu, E., Yavuz, M., (2012), Desulphurization and deashing of oxidized fine coal by Knelson concentrator, Fuel Processing Technology, 101, 94–100.
  • [5] Aktaş, Z., (2002), Some Factors Affecting Spherical Oil Agglomeration Performance of Coal Fines, International Journal of Mineral Processing, 65, 177-190.
  • [6] Honaker, R.Q., Wang, D., Ho, K., (1996), Application of the falcon concentrator for fine coal cleaning, Minerals Engineering, 9, 1143-1156.
  • [7] Osborne, D.G., (1988), Coal Preparation Technology (1st ed.), London: BP Coal Ltd.
  • [8] Özbayoğlu, G., Mamurekli, M., (1988), Zonguldak Kömürlerinden Süper Temiz Kömür Üretimi, Türkiye 6. Kömür Kongresi, TMMOB, Zonguldak, 159-170.
  • [9] Ghaffari, A., Farzanegan, A., (2017), An investigation on laboratory Knelson Concentrator separation performance: Part 1: Retained mass modelling, Minerals Engineering, 112, 57–67.
  • [10] Kökkılıc, O., Langlois, R., Waters, K.E., (2015), A design of experiments investigation into dry separation using a Knelson Concentrator, Minerals Engineering, 72, 73–86.
  • [11] Peer, F., Mongwe, A., Van Heerden, J.H.P., (2002), A preliminary investigation into the metallurgical efficiency of an enhanced gravity separator, The Journal of South African Institute of Mining and Metallurgy, 251-254.
  • [12] Xiao, J., (1998), Testing A New Gold Centrifugal Concentrator, Department of Mining and Metallurgical Engineering, McGill University, Montréal, Canada, Master's thesis.
  • [13] Fatahi, M.R., Farzanegan, A., (2017), DEM simulation of laboratory Knelson concentrator to study the effects of feed properties and operating parameters, Advanced Powder Technology, 28, 1443–1458.
  • [14] Öney, Ö., Tanrıverdi, M., (2016), Zonguldak İnce Kömürlerinin Knelson Ayırıcıda Zenginleştirilebilirliğinin Araştırılması, Türkiye 20. Kömür Kongresi, TMMOB, Zonguldak, 375-383.
  • [15] Sabah, E., Koltka, S., (2014), Separation Development Studies on the Beneficiation of Fine Lignite Coal Tailings by the Knelson Concentrator, Energy Fuels, 28(7), 4819–4827.
  • [16] Honaker, R.Q., Das, A., (2004), Ultrafine Coal Cleaning Using a Centrifugal Fluidized-Bed Separator, Coal Preparation, 24, 1–18.

RECOVERY OF COAL SLIME BY USING THE KNELSON CONCENTRATOR

Year 2020, Issue: 045, 215 - 224, 31.12.2020

Abstract

The coal slimes are formed during the gravity processes applied at the coal preparation plant (Coal Washery). After the washing process of coal, large amounts of fine coals with a high calorific value is being discharged to the abandoned open cast spaces causing economic losses and significant environmental problems. A re-processing of these coal slimes by using the newcomer separation devices, such as Knelson concentrator, is a necessity due to the filling up of ponds, requirements of new legislation, and so on. In this study, the recovery of fine coal slimes of Tuncbilek Washery in Kutahya-Turkey was carried out by using the Knelson Concentrator (KC). Besides, the effect of particles sizes on the recoverability of fine coals was also investigated to reach optimum recovery. According to the particle size analysis made for this purpose, the maximum particle size of the samples was found as 4 mm while the ratio of material below 0.038 mm was found as 69.66%. From the chemical analysis made (ash, calorific value), it was also found that the ash content and the upper calorific value of the waste material 68% and 1603 kcal/kg, respectively. After the coal processing studies carried out using the KC for two different particle size groups, it was realized that the recovery rate was highly reduced at carbon content which is the indicator of the valuable substance while it was slightly decreased at lower particle sizes. When all the coal processing results were considered, it could be concluded that clean coal with 70% carbon content and an upper calorific of 4807,9 kcal/kg could be obtained through a combustible recovery of 57.4%.

References

  • [1] Meyers R.A., Laskowski, J.S., Walters, A.D., (2001), Coal Preparation, Encyclopedia of physical science and technology, Energy, Editor-in-Chief: Robert A. Meyers, 277.
  • [2] Anonim, (2017), http://www.sourcewatch.org/index.php/Environmental_impacts_of_coal, İndirme Tarihi: 25.05.2017.
  • [3] Kemal, M., Arslan, V., (1999), Kömür teknolojisi, Dokuz Eylül Üniversitesi Mühendislik Fakültesi Yayınları, 33, 373.
  • [4] Uslu, T., Sahinoglu, E., Yavuz, M., (2012), Desulphurization and deashing of oxidized fine coal by Knelson concentrator, Fuel Processing Technology, 101, 94–100.
  • [5] Aktaş, Z., (2002), Some Factors Affecting Spherical Oil Agglomeration Performance of Coal Fines, International Journal of Mineral Processing, 65, 177-190.
  • [6] Honaker, R.Q., Wang, D., Ho, K., (1996), Application of the falcon concentrator for fine coal cleaning, Minerals Engineering, 9, 1143-1156.
  • [7] Osborne, D.G., (1988), Coal Preparation Technology (1st ed.), London: BP Coal Ltd.
  • [8] Özbayoğlu, G., Mamurekli, M., (1988), Zonguldak Kömürlerinden Süper Temiz Kömür Üretimi, Türkiye 6. Kömür Kongresi, TMMOB, Zonguldak, 159-170.
  • [9] Ghaffari, A., Farzanegan, A., (2017), An investigation on laboratory Knelson Concentrator separation performance: Part 1: Retained mass modelling, Minerals Engineering, 112, 57–67.
  • [10] Kökkılıc, O., Langlois, R., Waters, K.E., (2015), A design of experiments investigation into dry separation using a Knelson Concentrator, Minerals Engineering, 72, 73–86.
  • [11] Peer, F., Mongwe, A., Van Heerden, J.H.P., (2002), A preliminary investigation into the metallurgical efficiency of an enhanced gravity separator, The Journal of South African Institute of Mining and Metallurgy, 251-254.
  • [12] Xiao, J., (1998), Testing A New Gold Centrifugal Concentrator, Department of Mining and Metallurgical Engineering, McGill University, Montréal, Canada, Master's thesis.
  • [13] Fatahi, M.R., Farzanegan, A., (2017), DEM simulation of laboratory Knelson concentrator to study the effects of feed properties and operating parameters, Advanced Powder Technology, 28, 1443–1458.
  • [14] Öney, Ö., Tanrıverdi, M., (2016), Zonguldak İnce Kömürlerinin Knelson Ayırıcıda Zenginleştirilebilirliğinin Araştırılması, Türkiye 20. Kömür Kongresi, TMMOB, Zonguldak, 375-383.
  • [15] Sabah, E., Koltka, S., (2014), Separation Development Studies on the Beneficiation of Fine Lignite Coal Tailings by the Knelson Concentrator, Energy Fuels, 28(7), 4819–4827.
  • [16] Honaker, R.Q., Das, A., (2004), Ultrafine Coal Cleaning Using a Centrifugal Fluidized-Bed Separator, Coal Preparation, 24, 1–18.
There are 16 citations in total.

Details

Primary Language English
Subjects Engineering
Journal Section Research Articles
Authors

Ali Uçar

Oktay Şahbaz

Nezahat Ediz

Sevgi Karaca

İsmail Göktay Ediz

Publication Date December 31, 2020
Submission Date November 5, 2020
Published in Issue Year 2020 Issue: 045

Cite

IEEE A. Uçar, O. Şahbaz, N. Ediz, S. Karaca, and İ. G. Ediz, “RECOVERY OF COAL SLIME BY USING THE KNELSON CONCENTRATOR”, JSR-A, no. 045, pp. 215–224, December 2020.