Grinding behaviour of coal in different size-reduction systems |
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| Affiliation: | 1. Junior Resident, Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India;2. Professor and Head, Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India;3. Associate Professor, Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India;4. Associate Professor, Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India;5. Senior Resident, Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India;1. National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China;2. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China;3. National-local Joint Engineering Research Center of High-efficient Exploitation Technology for Refractory Iron Ore Resources, Shenyang 110819, China;1. AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, al. A. Mickiewicza 30, 30-059 Krakow, Poland;2. AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, al. A. Mickiewicza 30, 30-059 Krakow, Poland;3. AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, al. A. Mickiewicza 30, 30-059 Krakow, Poland;1. Hacettepe University, Mining Engineering Dept., 06800 Beytepe-Ankara, Turkey;2. Loesche GmbH, Germany |
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| Abstract: | It was found that it is easer to grind some coals in ball-race mills and others in tube mills. In this paper, simple laboratory methods are presented for evaluation of the grinding behavior of five coals in two different size-reduction operations. The tests proved that certain coals are better ground by impact than attrition and vice versa. |
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