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JES. Journal of Engineering Sciences
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Rizk, S. (2021). STUDY OF THE BEHAVIOR OF BINARY MIXTURE GRINDING USING THE FIXED-TIME LOCKED - CYCLE TESTS”.. JES. Journal of Engineering Sciences, 49(No 1), 53-63. doi: 10.21608/jesaun.2020.45243.1016
Sherein A Rizk. "STUDY OF THE BEHAVIOR OF BINARY MIXTURE GRINDING USING THE FIXED-TIME LOCKED - CYCLE TESTS”.". JES. Journal of Engineering Sciences, 49, No 1, 2021, 53-63. doi: 10.21608/jesaun.2020.45243.1016
Rizk, S. (2021). 'STUDY OF THE BEHAVIOR OF BINARY MIXTURE GRINDING USING THE FIXED-TIME LOCKED - CYCLE TESTS”.', JES. Journal of Engineering Sciences, 49(No 1), pp. 53-63. doi: 10.21608/jesaun.2020.45243.1016
Rizk, S. STUDY OF THE BEHAVIOR OF BINARY MIXTURE GRINDING USING THE FIXED-TIME LOCKED - CYCLE TESTS”.. JES. Journal of Engineering Sciences, 2021; 49(No 1): 53-63. doi: 10.21608/jesaun.2020.45243.1016

STUDY OF THE BEHAVIOR OF BINARY MIXTURE GRINDING USING THE FIXED-TIME LOCKED - CYCLE TESTS”.

Article 4, Volume 49, No 1, January and February 2021, Page 53-63  XML PDF (568.62 K)
Document Type: Research Paper
DOI: 10.21608/jesaun.2020.45243.1016
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Author
Sherein A Rizk email
Faculty of Engineering-Beni-Suef University
Abstract
Ores are generally very heterogeneous in their physical properties. Variation of the ore from a mine can cause the mill feed to vary in grindability. In the comminution of heterogeneous materials, an understanding of how different constituents behave by themselves and how they interact with each other may prove useful not only for understanding grinding mill action but also for obtaining the optimum values which used in mathematical modelling.
Locked cycle tests show that in the grinding of mixtures relatively long time is required to attain steady state, during which the composition of the mill contents continuously change. Therefore, the main objective of this work is to study the behavior of the components of limestone-quartz binary mixture at different ratios of mixing from the start point to attain the steady state condition using the experimental fixed-time locked-cycle tests.
It is shown that attaining the steady state condition in a fixed time locked cycle is faster with low circulating load for soft material than those for hard one when they ground separately. As admixture, the hard component appearance increases gradually with decreasing the fineness of the product as its percentage increases in the feed.
Keywords
Comminution of binary mixtures; psedu closed circuit; fixed time locked; cycle; grinding circuits
Main Subjects
Mining and Metallurgical Engineering.
References
[1]        Remes, A., Aaltonen, J., and Koivo, H., “Grinding circuit modelling and simulation of particle size control”, Int.J. of miner. Process., Vol.96 (2010), pp.70-78.

[2]        Rodriguez, B.A., Menendez-Aguado, J.M., Coello Velazquez, A., and Dzioba, B.R., “Transient state analysis by simulation in a closed grinding circuit-Technical note”, Minerals Engineering, Vol.24 (2011), pp.473-475.

[3]        Khumalo, N., Glasser, D., Hildebrandt, D., and Hausberger, B., “Improving comminution efficiency using classification: An attainable region approach”, Powder Techn., Vol.187 (2008), pp.252-259.

[4]        Brown, R.L., Chem, M.I., “Calculation of closed-circuit grinding”, British Chemical Engineering, August / September, (1959), pp.463-466.

[5]        Stewart, P.S.P., and Restarick, C.J., “Dynamic flow characteristics of a small spiral classifier”, Trans.of IMM. Sec. C., Vol.76, (1967), pp.C225-C230.

[6]        Kapur, P.C., and Rahman, M., “Simulation of fixed time locked-cycle grinding tests”, Trans. Of IMM, Sec.C., Vol.80, (1971), pp. C74-C78.

[7]        Karra, v.k., “Calculating the circulating load in crushing circuits”, Eng. And Mining Journal, Feb. (1979), pp.66-68.

[8]        Cemil Acar and Hosten Certin, “Grinding Kinetics of steady state feeds in locked-cycle dry ball milling”, Powder Techn., Vol. 240, (2013), pp. 274-281.

[9]        Shengo, L.M., Gydardzhiev, S., and Kalenga, N.M., “Malachite and heterogenite behavior during the locked-cycle recycling of process water in flotation of copper-cobalt oxide ores”. Int.J. of Miner. Process., Vol.157, (2016), pp. 152-162.

[10]     Hartlieb, p., Toifl, M., Kuchar, F., Meisels, R., and Antretter, T., “Thermo-physical properties of selected hard rocks and their relation to microwave-assisted comminution”, Minerals Engineering, Vol.91 (2016), pp.34-41.

[11]     Altun, A., Benzer, H., Dundar, H., and Aydogan, N.A., “Comparison of open and closed circuit HPGR application on dry grinding circuit performance”, Mineral Engineering, Vol.24 (2011), pp.267-275.

[12]     Fuerstenau, D.W., and Venkataraman, K.S., “The comminution of multi component feeds under batch and Locked-cycle conditions: Kinetics, simulation and energy distribution”, Int.J. of Miner. Process., Vol.22 (1988), pp.105-118.

[13]     Kapur.P.C., Verma, R., Velamakanni, B.V., and Fuerstenau, D.W., “Simulation of locked-cycle grinding of multi component feeds and its implications for stability and control of industrial comminution circuits”, Powder Techn, Vol.69, (1992), pp.77-84.

[14]     Kapur.P.C., and Fuerstenau, D.W., “Simulation of locked-cycle grinding tests using multi component feeds”, Powder Techn., Vol.58 (1989), pp.39-48.

[15]     Powell, M.S., and Morrison, R.D., “The future of commnution modelling”, Int.J. Min. Process, Vol. 84 (2007), pp. 228-239.

[16]     Jankovic, A., and Valery, W., “Closed circuit ball mill –revisited”, Minerals Engineering, Vol.43-44 (2013), pp. 148-453.

[17]     Olivera, A., and Tawares, L.M., “Modelling and simulation of continuous open circuit dry grinding in a pilot-scale ball mill using Austin and Nomura's models”, Powder Techn., Vol.340 (2018), pp.77-87.

[18]     Weining, X., yaqun, H., Zhenzhou, G., Fengnian, S., yong, y., Hong, L., Shuai, W., and ki, L, “An analysis of the energy split for grinding coal / calcite mixture”, Minerals Engineering, Vol.93 (2016), pp. 1-9.

[19]     Dundar, H., and Benzer, H., “Investigation multicomponent breakage in cement grinding”, Minerals Engineering, Vol.77 (2015), pp.131-136.

[20]     Genc, O., “Optimization an industrial scale open circuit three-compartment cement grinding ball mill with the aid of simulation”, Int.J. of Miner. Process., Vol.154 (2016), pp.1-9.

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