Abstract
Spiral concentrators have been widely used in coal preparation plants in Illinois and elsewhere to clean 1 mm ×150 μm particle size coal fraction. The major factors which have made spiral concentrator so popular include its low capital and operating cost, no chemical reagent or dense medium requirement, and the ease of operation/maintenance. Spirals are capable of providing excellent clean coal recovery although at a relatively high ash content. Like any other water-only separation process, spirals are also susceptible to continuously fluctuating feed quality and solids content in the feed slurry, which are quite common in a plant. The main objective of the project is to develop an inexpensive control system for spiral to automatically adjust the splitter position with fluctuating feed characteristics to maintain the desired effective separation specific gravity (density cut-point).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Abbot J (1982) The optimization of process parameters to maximize the profitability from a three-component blend. In: Proceedings – 1st Australian coal preparation conference, April 6–10, New Castle, Australia, pp 87–105
Bethell PJ, Arnold BJ (2003) Comparing a two-stage spiral to two stages of spirals for fine coal preparation. In: Honaker RQ, Forrest WR (eds) Symposium on recent advances in gravity separation, SME Annual Meeting, Littleton, CO, pp 107–114
Luttrell GH, Kohmuench JN, Stanley FL, Trump GD (1999) An evaluation of multi-stage spiral circuits. In: Proc. 16th International Coal Preparation Conference, pp 79–88.
Luttrell GH, Honaker RQ, Bethell PJ, Stanley FL (2003) Proceedings – 20th international coal preparation exhibition and conference, Lexington, Kentucky, April 29–May 1, pp 69–78
Luttrell GH, Kohmuench JN, Stanley FL, Trump GD (1998) Improving spiral performance using circuit analysis. Minerals and Metallurgical Processing Journal 15(4):16–21
Prinsolo TR, Abela RL (1998) Multiple stage fine coal spiral concentrators. In: Proceedings of the international coal preparation congress, Brisbane, Australia, October 4–10, pp 245–253
Crowe CT, Elger DF, Roberson JA (2005) Engineering fluid mechanics, 8th edn. Wiley, New York, p 441, Appendix A14
Yoon RH, Phillips DI, and Luttrell, GH., (2000) “Applications of Advanced Fine Coal Cleaning and Dewatering Technologies,” Proceedings, 7th Asia-Pacific Economic Cooperation (APEC) Clean Fossil Energy Technical Seminar, APEC Experts Group on Clean Fossil Energy, Chapter VI (3), Taipei, China, March 7-8, 2000, 10 pp
Acknowledgments
The authors would like to acknowledge the grant provided by ICCI (# 06-1/2.1A.6) to support this work.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Science+Business Media, LLC
About this paper
Cite this paper
Hoelscher, J., Pan, Y., Mohanty, M., Don, J., Chu, T., Mahajan, A. (2010). Development of a Control System for Automating of Spiral Concentrators in Coal Preparation Plants. In: Luo, A. (eds) Dynamical Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-5754-2_33
Download citation
DOI: https://doi.org/10.1007/978-1-4419-5754-2_33
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-5753-5
Online ISBN: 978-1-4419-5754-2
eBook Packages: EngineeringEngineering (R0)