Parámetros para el Proceso de Molienda en Molinos Verticales Usando Métodos de Optimización
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Los molinos verticales de rodillos VRM, son máquinas muy utilizadas para moler materia prima en fábricas dedicadas a la extracción y procesamiento de minerales. Cualquier máquina ocupada para moler o triturar consume alrededor del 30 o 40% de la energía de una fábrica. La presión de carga, la velocidad de rotación de la mesa, el contenido de humedad, temperatura de salida del molino y presión de los rodillos son variables que se pueden controlar para disminuir el consumo de energía especifica Ecs. Este trabajo plantea un problema de optimización con el fin de reducir el consumo energético de un VRM utilizado para producir cemento y encontrar los parámetros óptimos de las variables de operación. Se utilizan varios paquetes para resolver el problema de programación no lineal, obteniendo resultados muy concisos, pero se usa los resultados proporcionados por el paquete Pyomo. Comparando el resultado de la función objetivo con el consumo energético de una empresa cementera en Ecuador se concluye que los parámetros optimizados son capaces de reducir en un 25% el consumo energético garantizando una producción mínima de 2200 toneladas de cemento diarias por lo que el modelo se valida correctamente.
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Z. X. Zhang, D. F. Hou, A. Aladejare, T. Ozoji, and Y. Qiao, “World mineral loss and possibility to increase ore recovery ratio in mining production,” https://doi.org/10.1080/17480930.2021.1949878, vol. 35, no. 9, pp. 670–691, 2021, doi: 10.1080/17480930.2021.1949878.
M. L. C. M. Henckens, E. C. van Ierland, P. P. J. Driessen, and E. Worrell, “Mineral resources: Geological scarcity, market price trends, and future generations,” Resources Policy, vol. 49, pp. 102–111, Sep. 2016, doi: 10.1016/J.RESOURPOL.2016.04.012.
D. Xu, Y. Cui, H. Li, K. Yang, W. Xu, and Y. Chen, “On the future of Chinese cement industry,” Cem Concr Res, vol. 78, pp. 2–13, Dec. 2015, doi: 10.1016/J.CEMCONRES.2015.06.012.
D. Gauthier, “European Cement Research Academy Chairman of the advisory board: Future Grinding Technologies-Report about Phase 1: Evaluation of Roundtable Event,” European Cement Research Academy, 2015, Accessed: Jan. 08, 2023. [Online]. Available: www.ecra-online.org
D. Altun, C. Gerold, H. Benzer, O. Altun, and N. Aydogan, “Copper ore grinding in a mobile vertical roller mill pilot plant,” Int J Miner Process, vol. 136, pp. 32–36, Mar. 2015, doi: 10.1016/J.MINPRO.2014.10.002.
W. N. Xie et al., “Simulation study of the energy-size reduction of MPS vertical spindle pulverizer,” Fuel, vol. 139, pp. 180–189, Jan. 2015, doi: 10.1016/J.FUEL.2014.08.040.
D. Altun, H. Benzer, C. Gerold, and C. Schmitz, “Predicting the grinding energy of vrm depending on material characterization,” Miner Eng, vol. 171, p. 107095, Sep. 2021, doi: 10.1016/J.MINENG.2021.107095.
V. Ghalandari, M. Esmaeilpour, N. Payvar, and M. Toufiq Reza, “A case study on energy and exergy analyses for an industrial-scale vertical roller mill assisted grinding in cement plant,” Advanced Powder Technology, vol. 32, no. 2, pp. 480–491, Feb. 2021, doi: 10.1016/J.APT.2020.12.027.
A. Boehm, P. Meissner, and T. Plochberger, “An energy based comparison of vertical roller mills and tumbling mills,” Int J Miner Process, vol. 136, pp. 37–41, Mar. 2015, doi: 10.1016/J.MINPRO.2014.09.014.
W. Xie, Y. He, L. Qu, X. Sun, and X. Zhu, “Effect of particle properties on the energy-size reduction of coal in the ball-and-race mill,” Powder Technol, vol. 333, pp. 404–409, Jun. 2018, doi: 10.1016/J.POWTEC.2018.04.018.
V. Deniz, “A study on the specific rate of breakage of cement materials in a laboratory ball mill,” Cem Concr Res, vol. 33, no. 3, pp. 439–445, Mar. 2003, doi: 10.1016/S0008-8846(02)00976-6.
P. Pareek and V. S. Sankhla, “Review on vertical roller mill in cement industry & its performance parameters,” in Materials Today: Proceedings, 2020, vol. 44, pp. 4621–4627. doi: 10.1016/j.matpr.2020.10.916.
H. U. Schaefer, “Loesche vertical roller mills for the comminution of ores and minerals,” Miner Eng, vol. 14, no. 10, pp. 1155–1160, Oct. 2001, doi: 10.1016/S0892-6875(01)00133-9.
M. Reichert, C. Gerold, A. Fredriksson, G. Adolfsson, and H. Lieberwirth, “Research of iron ore grinding in a vertical-roller-mill,” Miner Eng, vol. 73, pp. 109–115, Mar. 2015, doi: 10.1016/J.MINENG.2014.07.021.
Ö. Genç and Ö. Genç, “Energy-Efficient Technologies in Cement Grinding,” High Performance Concrete Technology and Applications, Oct. 2016, doi: 10.5772/64427.
W. Wei, J. Shen, H. Yu, B. Chen, and Y. Wei, “Optimization Design of the Lower Rocker Arm of a Vertical Roller Mill Based on ANSYS Workbench,” Applied Sciences 2021, Vol. 11, Page 10408, vol. 11, no. 21, p. 10408, Nov. 2021, doi: 10.3390/APP112110408.
기계공학과동아대학교, 자동차공학과강원대학교, D.-W. Lee, and S.-S. Cho, “Optimization of Vertical Roller Mill by Using Artificial Neural Networks,” Transactions of the Korean Society of Mechanical Engineers A, vol. 34, no. 7, pp. 813–820, 2010, doi: 10.3795/KSME-A.2010.34.7.813.
M. A. Boyd et al., “Increase productivity of vertical roller mill using seven QC tools,” IOP Conf Ser Mater Sci Eng, vol. 1017, no. 1, p. 012035, Jan. 2021, doi: 10.1088/1757-899X/1017/1/012035.
T. Long, Y. Fang, Q. Liu, and A. Liu, “Prediction of the vertical roller mill key parameters based on optimized ESN algorithm,” Proceedings of 2016 5th International Conference on Computer Science and Network Technology, ICCSNT 2016, pp. 257–262, Oct. 2017, doi: 10.1109/ICCSNT.2016.8070159.
C. Wang, Q. Zhang, H. Wang, Y. Ji, and S. Zhang, “Expert PID control of grinding condition for cement vertical roller mill,” pp. 1880–1884, 2020, doi: 10.1109/ITAIC49862.2020.9339167.
W. Xie et al., “Comparison of energy efficiency between E and MPS type vertical spindle pulverizer based on the experimental and industrial sampling tests,” Energy, vol. 130, pp. 174–181, Jul. 2017, doi: 10.1016/J.ENERGY.2017.04.113.
D. Altun, H. Benzer, N. Aydogan, and C. Gerold, “Operational parameters affecting the vertical roller mill performance,” Miner Eng, vol. 103–104, pp. 67–71, Apr. 2017, doi: 10.1016/J.MINENG.2016.08.015.
C. Liu et al., “Analysis and Optimization of Grinding Performance of Vertical Roller Mill Based on Experimental Method,” Minerals 2022, Vol. 12, Page 133, vol. 12, no. 2, p. 133, Jan. 2022, doi: 10.3390/MIN12020133.
P. Meraz, “Optimización de los Molinos Verticales de Rodillos en la Fabricación de Cemento,” Dec. 30, 2017. https://es.linkedin.com/pulse/optimizaci%C3%B3n-de-los-molinos-verticales-rodillos-en-la-meraz-vinaja- (accessed Feb. 05, 2023).
PFEIFFER AG, “The grinding process Control of the grinding process Operation,” 2009.
INEN, CEMENTO PORTLAND. REQUISITOS. INSTITUTO ECUATORIANO DE NORMALIZACIÓN, 2010. Accessed: Feb. 05, 2023. [Online]. Available: https://www.normalizacion.gob.ec/buzon/normas/152.pdf
S. Vigerske and A. Wächter, “Ipopt: Documentation,” 2022. https://coin-or.github.io/Ipopt/index.html (accessed Feb. 26, 2023).
Y. Ma, N. Zhang, and J. Li, “Improved Sequential Least Squares Programming–Driven Feasible Path Algorithm for Process Optimisation,” vol. 51, pp. 1279–1284, Jan. 2022, doi: 10.1016/B978-0-323-95879-0.50214-9.
