Effect of grinding aids on the grinding energy consumed during grinding of calcite in a stirred ball mill |
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| Authors: | H. Choi W. Lee D.U. Kim S. Kumar S.S. Kim H.S. Chung J.H. Kim Y.C. Ahn |
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| Affiliation: | 1. School of Nano and Advanced Materials Engineering, Changwon National University, Changwon, Republic of Korea;2. Department of Precision and Mechanical Engineering and Eco-Friendly Heat and Cooling Energy Mechanical Research Team, BK21, Gyeongsang National University, Tongyoung, Republic of Korea;3. Department of Quantum Science and Energy Engineering, Tohoku University, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, Japan;4. School of Architecture College of Engineering, Pusan National University, Busan, Republic of Korea;1. Department of Mining Engineering, Afyon Kocatepe University, 03200 Afyonkarahisar, Turkey;2. Department of Mining Engineering, Istanbul University, 34320 Avc?lar-Istanbul, Turkey;1. Department of Electrical and Mining Engineering, University of South Africa, Florida Campus, Private Bag X6, Johannesburg 1710, South Africa;2. School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Private Bag X3, Wits 2050, Johannesburg, South Africa;1. Division of Engineering, Muroran Institute of Technology, Mizumoto-cho 27-1, Muroran 050-8585, Japan;2. College of Environmental Technology, Muroran Institute of Technology, Mizumoto-cho 27-1, Muroran 050-8585, Japan;1. Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China;2. College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China;3. Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada |
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| Abstract: | A series of wet-grinding experiments has been carried out on inorganic powders by a stirred ball mill to systematically investigate the grinding characteristics. The grinding power consumed for a given grinding time was considered, as well as the effect of grinding aids on particle size. The grinding energy consumed, defined as the integral of the grinding power over time, was also investigated. The grinding aids were found to influence the product size and decrease the grinding energy. This is attributed to the prevention of agglomeration and coating of the sample powder onto the ball and grinding chamber wall. The grinding process seemed to be controlled by the force of agglomeration of the ground products. It was demonstrated that the particle size and grinding consumption energy could be decreased by the addition of grinding aids. |
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