Coal Micronization Studies In Vibrating Mill In Terms of Coal Water Slurry (CWS ) Fuel Preparation

• Autorzy: Robak J. , Ignasiak K. , Rejdak M.

Identyfikatory

DOI

10.12911/22998993/68214

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of coal milling tests in the aspect of slurry fuel preparation. The tests were carried out with the use of vibrating mill with a working chamber of 47.5 dm³. The influence of milling time, amount and composition of grinding aids on the degree of fineness and particle size distribution have been investigated. It was found that the efficiency of the grinding process (in this type of milling device) depends primarily on the milling time and the share of grinding aids and – to a lesser extent – on their polydispersity. The study allows to conclude that the grinding time, composition and the share of used grinding aids enable to control the final grain size of coal, which has an impact on apparent viscosity of coal water slurry.

Słowa kluczowe

EN

CWS; slurry fuel; coal-water slurry; vibrating mill

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2017
• Tom: Vol. 18, nr 2
• Strony: 111--118
• Opis fizyczny: Bibliogr. 21 poz., tab., rys.

Twórcy

autor

Robak J.

• Institute for Chemical Processing of Coal, Zamkowa 1 St., 41-803 Zabrze, Poland

autor

Ignasiak K.

• Institute for Chemical Processing of Coal, Zamkowa 1 St., 41-803 Zabrze, Poland

autor

Rejdak M.

• Institute for Chemical Processing of Coal, Zamkowa 1 St., 41-803 Zabrze, Poland

Bibliografia

• 1. Aktas, Z., Woodburn, E.T. 2000. Effect of addition of surface active agent on the viscosity of high concentration slurry of a low-rank British coal in water. Fuel Processing Technology. 62, 1–15.
• 2. Allen J.W., 1984. Burnenrs for coal/water slurry firing. mod.Power. Syst., 43–45.
• 3. Boylu, F., Dincer, H., Atesok, G. 2004. Effect of coal particle size distribution, volume fraction and rank on the rheology of coal – water slurries. Fuel Processing Technology. 85, 241–250.
• 4. Clean Coal Technology. DOE/NETL-2004/1207, US Department of Energy. http://netl.doe.gov/ technologies/coalpower/gasification/gasifipedia. Accessed 10 December 2015
• 5. Clean Coal Technology, Topical Report No 19, US Department of Energy & Tampa Electric Co. http:// netl.doe.gov/technologies/coalpower/gasification/ gasifipedia). Accessed 10 December 2015
• 6. Collot, A.G. 2006. Matching gasification technologies to coal properties. Int. J. of Coal Geology. 65, 191–212.
• 7. Drzymała J. 2007. Mineral Processing – Foundation of theory and practice of minerallurgy. Wroclaw University of Technology.
• 8. Fiseni, F. 1987. Die hochkonzentrierte Kohle / Wasser – Suspension DENSECOAL. Brennstoff Wärme Kraft. 39, 246–248.
• 9. High concentration coal-water mixture for fuel use. 1994. Broschure CADDET IEA OECD, Demo 30.
• 10. Kijo-Kleczkowska A. 2011. Combustion of coal– water suspensions. Fuel, 90, 865–877.
• 11. Kubica, R., Smołka, W. 2000. Zawiesinowe paliwa węglowe: rozwój, charakterystyka i perspektywy zastosowania. Gospodarka Paliwami i Energią. 1, 2–8
• 12. Langhoff, J., Kirschke, H.G., Masuch, H.P., Zagberg, U.. 1988. Kohle-Wasser-Suspension. Erdöl und Kohle – Erdgas – Petrochemie. 41, 166–168
• 13. Logos, C., Nguyen, Q.D. 1996. Effect of particle size on the flow properties of a South Australian coal – water slurry. Powder Technology. 88, 55–58
• 14. Michalik A., Hycnar J., Kula H., Fras A.,Sikora L. 2013. Materiały XXVII Konferancji Zagadnienia Surowców Energetycznych i Energii w Gospodarce Krajowej.
• 15. Mosa, E.S. , Saleh, A-H.M. , Taha, T. , El-Molla, A.M.. 2008, Effect of chemical additives on flow characteristics of coal slurries. Physicochem. Probl. Miner. Process. 42, 107.
• 16. Planowski, A.N., Ramm, W.M., Kagan, S.Z., 1974. Procesy i aparaty w technologii chemicznej. WN-T Warszawa, Chap. 3.
• 17. Robak, J. 2008. Przygotowanie paliw do zgazo-wania, in: Borowiecki, T., Kijeński, J., Machnikow-ski, J., Ściążko, M. (Eds.) Czysta energia. Produkty chemiczne i paliwa z węgla – ocena potencjału rozwojowego. Wyd. IChPW, Zabrze, 131–138.
• 18. Roh, N.-S., Shin, D.-H., Kim, D.-CH., Kim, J.-D. 1995. Rheological behaviour of coal –water mixtures. 1. Effects of coal type, loading and particle size. Fuel, 74, 1220–1225.
• 19. Singh M. K., Ratha D., Kumar S., Kumar D. 2016. Influence of Particle Size Distribution and Temperature on Rheological Behavior of Coal Slurry. International Journal of Coal Preparation and Utilization, 36, 44–54.
• 20. Slaczka A., Wasilczyk A. 2012. The effect of chemicals on the rheology of highly loaded coal water slurries (CWS), Physicochem. Probl. Miner. Process. 48, 141–148.
• 21. Vodougol’noje toplivo. Sovriemmiennoje toplivo dla teplo- i elektroenergetiki. Rezime ispolzowanija technologii, http://vodougol.ru. Accessed 10 December 2013.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).