Reusing pretreated desulfurization slag to improve clinkerization and clinker grindability for energy conservation in cement manufacture |
| |
| Authors: | Ying-Liang Chen Juu-En Chang Pai-Haung Shih Ming-Sheng Ko Yi-Kuo Chang Li-Choung Chiang |
| |
| Institution: | 1. Department of Environmental Engineering, National Cheng Kung University, No. 1, University Road, Tainan City 70101, Taiwan, ROC;2. Sustainable Environment Research Center, National Cheng Kung University, No. 1, University Road, Tainan City 70101, Taiwan, ROC;3. Department of Environmental Engineering and Science, Fooyin University, No. 151, Chinhsueh Road, Taliao, Kaohsiung 83102, Taiwan, ROC;4. Institute of Mineral Resources Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chunghsiao E. Road, Taipei City 10608, Taiwan, ROC;5. Department of Safety Health and Environmental Engineering, Central Taiwan University of Science and Technology, No. 11, Buzih Lane, Beitun District, Taichung City 40601, Taiwan, ROC |
| |
| Abstract: | The purpose of this study was to combine the physical pretreatments of grinding, sieving, and magnetic-separation processes to reclaim iron-rich materials from the desulfurization slag, and to use the remainder for cement clinker production. The iron-rich materials can be separated out efficiently by grinding for 30 min and sieving with a 0.3 mm mesh. The non-magnetic fraction of the particles smaller than 0.3 mm was in the majority, and proved to be suitable for use as a cement raw material. The raw mixes prepared with a pretreated desulfurization slag had a relatively high reactivity, and the temperature at which alite forms was significantly reduced during the clinkerization process. The clinkers produced with 10% desulfurization slag had a high level of alite and good grindability. Generally, the improvements in clinkerization and clinker grindability are beneficial to energy conservation in cement manufacture. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
