Manufacturing Technology 2024, 24(2):279-288
Optimization of Process Parameters for a Vertical Shaft Impact Crusher through the CFD-DEM Method
- School of Mechanical Engineering, Guizhou University, Guiyang, China
In this study, the process parameters of a vertical shaft impact (VSI) crusher are optimized. Different feed size distributions, material physical properties, and product size distribution requirements are considered to determine the optimal material particle bond cleavage ratio. First, a numerical model is developed to simulate the crushing effect by adopting a CFD-DEM method. Then, the relationship between the crushing effect and the rotor speed, feed size distribution, and feed rate is revealed by analyzing the bond cleavage ratio of smaller-size distribution feed crushing to the specified particle size. The optimized working parameters of the crusher are determined under different feed size distributions. The results show that the feed size distribution of 8 mm, 20 mm, and 40 mm account for 20%, 30%, and 50% of the feed, respectively. Based on the results, it is implied that a feed rate of 120 t/h and a rotor rotational speed of 1800 r/min can be selected for crushing production. When the feed size distribution varies, this method can also be used to select a suitable feed rate and the rotor speed for crushing production. Overall, this study guides for optimizing the working parameters and improving the crushing efficiency.
Keywords: VSI crusher, Working parameters, Optimization, CFD-DEM
Grants and funding:
This project was supported by the national natural science foundation of China (Grant No. 52065007)
Received: November 24, 2023; Revised: March 14, 2024; Accepted: March 22, 2024; Prepublished online: March 22, 2024; Published: April 30, 2024 Show citation
References
- FUSHENG MU. Technology development and prospect of crushing and grinding technology at home and abroad II. Mining Machine, 2011, 39(12):58-65.
- LAZI V , ARSI D , NIKOLI R .Reparation by Hard Facing of the Damaged Secondary Stone Crushers[J].Manufacturing Technology, 2016, 16(2):375-380.
Go to original source...
- TAKEUCHI, H. NAKAMURA, H. IWASAKI, T. WATANO, S. (2012). Numerical modeling of fluid and particle behaviors in impact pulverizer. In: Powder Technology. (217):148-156. Switzerland. ISSN
Go to original source...
- ARTYUKHOV, ARTEM JAN KRMELA, VLADIMIRA KRMELOVA. Manufacturing of Vortex Granulators: Simulation of the Vortex Fluidized Bed Functioning under the Disperse Phase Interaction in the Constrained Motion. Manufacturing Technology 2020, 20(5): 547-53.
Go to original source...
- SONG WANG. Study on feeding characteristics and structural design of vertical shaft shock crusher rotor. University of Jinan, 2011.
- SHIJIAN LI. Research on secondary acceleration type VSI crushing tester. JiNan University, 2015.
- ENPU ZHOU. Theory and Application of crushing machinery. Central South University Press, 2004.
- BENGTSSON, M., & EVERTSSON, C. M. (2008). Modelling of output and power consumption in vertical shaft impact crushers. International Journal of Mineral Processing, 88(1-2), 18-23. Netherlands. ISSN
Go to original source...
- EMERSON REIKDAL DA CUNHA, RODRIGO M. DE CARVALHO, LUIS MARCELO TAVARES. (2013). Simulation ofsolids flow and energy transfer in a VSI crusher using DEM. Minerals Engineering, (43):85-90. England. ISSN
Go to original source...
- N. DJORDJEVIC, F.N. SHI, R.D. MORRISON. (2003). Applying discrete element modelling to vertical and horizontal shaft impact crushers. Minerals Engineering, 16:983-991. England. ISSN
Go to original source...
- C.T. JAYASUNDARA,R.Y. YANG. (2010). CFD-DEM modelling of particle flow in IsaMills - Comparison between simulations and PEPT measurements. Minerals Engineering, (24):181-187. England. ISSN
Go to original source...
- P.W. CLEARY, R.D. MORRISON. (2016). Comminution mechanisms, particle shape evolution and collision energy partitioning in tumbling mills. Minerals Engineering, (86):75-95. England. ISSN
Go to original source...
- SINNOTT, M., CLEARY, P.W. (2015). Simulation of particle flows and breakage in crushers using DEM: Part 2-impact crushers. Minerals Engineering, (74):163-177. England. ISSN
Go to original source...
- SONG WANG, FANG ZHAO, DERONG DUAN. Research of VSI Crusher Rotor Channels'Number Based on EDEM. In: International Conference on Mechanical Industrial. 2011.
- BAOSHENG LANG, SHIPING LANG. Crusher. Metallurgical Industry Press. 2008:256-268.
- DERONG DUAN, FANG ZHAO, XIANXIN CHEN, WEI GUO. The New Rotor Diameter Selection of VSI Crusher Based on EDEM. Applied Mechanics and Materials. 2011, (148-149):1033-1036.
Go to original source...
- GUANGLIN JIANG. Introduction of mechanism sand production technology and equipment and practical application. Mechanism sand and gravel production and Application technology forum. 2010.
- JIANYUAN LIU. Determination and application of the Bond Work Index for the fine mill. Mining and metallurgy. 2017 (06): 16-21.
- XINXIN CHEN. Rotor design of vertical shaft crusher based on deterministic impact technology. University of Jinan. 2012.
- XIANBIN ZENG. Relationship and application of crushing work index and ore breakability. Foreign metal mining. 1983 (3): 13-17.
- CHENG ZHANG. Analysis and Optimization Design of VSI crusher. Guizhou University. 2019.
- JIANSHENG LI. Influence of rotor structure parameters of vertical shaft on crusher. Concrete. 2016 (7): 157-160.
- MA-NEUTAL. Study on Vertical cavity Optimization Based on EDEM Simulation. Jiangxi University of Science and Technology. 2013.
- YANG YANG, SHOUGUO TANG, JIALIN WANG. Selection method of damping coefficient, stiffness coefficient and time step in particle discrete element method. Computer-aided Engineering. 2007,16 (3): 65-68.
- RENHAI XIE. Structural Geology. China University of Mining and Technology Press. 2007.
- HONGMAO ZENG. ENPU ZHOU. Impact crusher impact velocity and impact time and determination of crushing force. Mining & Processing Equipment. 1994(1) :2-6.
- MINGLIANG HU. Parameters analysis and structure optimization of impact crusher based on EDEM. Jiangxi University of Science and Technology. 2016.
- LEWINSKI, J. (1984). Experimental analysis of impact comminution phenomena in a model impact crusher. Aufbereitungs Technik. 25(10):580-584. Wiesbaden.
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