Comparison of the overall circuit performance in the cement industry: High compression milling vs. ball milling technology |
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| Authors: | Namık A Aydoğan Hakan Benzer |
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| Affiliation: | 1. Department of Mining Engineering, Süleyman Demirel University, Isparta, Turkey;2. Department of Polymer Engineering, Hitit University, Çorum, Turkey;3. Department of Mining Engineering, Osmangazi University, Eski?ehir, Turkey;4. Department of Electronic and Communication Engineering, Süleyman Demirel University, Isparta, Turkey |
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| Abstract: | In cement production, tube mills having multi-chambers are traditionally used either in open or closed circuit operations. After the introduction of high compression grinding mills (High pressure grinding rolls (HPGR), vertical roller mill (VRM) and Horomill), various circuit configurations have been developed for energy efficient grinding. In this study, in order to evaluate and compare the performances of these cement grinding technologies, industrial scale data were collected from HPGR-ball mill, VRM, Horomill and multi-chamber ball mill closed circuits.The grind abilities of the raw materials of all circuits were varying in a narrow range of 14–20 kWh/t. The specific energy consumptions of the grinding equipment and the standard bond work indexes, used 100 μm screen, of raw materials are given below.| Circuit | Bond work index (kWh/t) | Specific energy consumption (kWh/t) |
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| HPGR-ball mill | 14.7 | 20.0 | | VRM | 19.6 | 27.5 | | Horomill | 14.4 | 17.5 | | Ball mill | 14.4 | 32.5 |
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