Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation
Aiming at a certain coal slime in Guizhou, the yield rate of -0.074mm class is 54.19%, the ash content is 40.55%, the yield rate of -0.045 mm class is 40.38%, the ash content is 40.79%, and contains a lot of pearl clay, Clay minerals such as kaolinite and double kaolinite, difficlut floated and high...
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| Format: | Article |
| Language: | zho |
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Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
2022-04-01
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| Series: | Kuangchan zonghe liyong |
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| Online Access: | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2022.02.026 |
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| author | Tianshen Lu Zhengbin Deng Zhihong Liu Wei Cheng |
| author_facet | Tianshen Lu Zhengbin Deng Zhihong Liu Wei Cheng |
| author_sort | Tianshen Lu |
| collection | DOAJ |
| description | Aiming at a certain coal slime in Guizhou, the yield rate of -0.074mm class is 54.19%, the ash content is 40.55%, the yield rate of -0.045 mm class is 40.38%, the ash content is 40.79%, and contains a lot of pearl clay, Clay minerals such as kaolinite and double kaolinite, difficlut floated and high-ash coal slime that are easy sliming. The optimal flotation conditions of -0.5+0.25 mm, -0.25+0.074 mm and -0.074 mm classes (slurry concentration, collector dosage, frother dosage and mixing speed)were confirmed by the method of classification flotation. The optimal flotation conditions of -0.5+0.25 mm, -0.25+0.074 mm and -0.074 mm classes were compared with the whole flotation of -0.5mm class. The results show that the optimal dosage of reagents and process parameters for each size classes are different. Under the optimal flotation conditions, the yield of clean coal of classification flotation is higher than that of the full size flotation, and the ash content is lower than that of the full size flotation. The yield of tailings is lower than that of the full size flotation, and the ash content is higher than that of the full size flotation. That is, the flotation of the classification flotation is significant for the slime. |
| first_indexed | 2024-04-12T03:38:13Z |
| format | Article |
| id | doaj.art-e101e9ba2f6f4cb1b5af0cf368f02ead |
| institution | Directory Open Access Journal |
| issn | 1000-6532 |
| language | zho |
| last_indexed | 2024-04-12T03:38:13Z |
| publishDate | 2022-04-01 |
| publisher | Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences |
| record_format | Article |
| series | Kuangchan zonghe liyong |
| spelling | doaj.art-e101e9ba2f6f4cb1b5af0cf368f02ead2022-12-22T03:49:22ZzhoInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesKuangchan zonghe liyong1000-65322022-04-01null214214910.3969/j.issn.1000-6532.2022.02.0262022-02lutianshenExperimental Study on Deashing of High Ash and Refractory Coal Slime by Classification FlotationTianshen Lu0Zhengbin Deng1Zhihong Liu2Wei Cheng3Mining College, Guizhou University, Guiyang, National & Local Joint Laboratory of Engineering for Efficient Utilization of Regional Mineral Resources from Karst Areas, Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang, Guizhou, ChinaMining College, Guizhou University, Guiyang, National & Local Joint Laboratory of Engineering for Efficient Utilization of Regional Mineral Resources from Karst Areas, Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang, Guizhou, ChinaMining College, Guizhou University, Guiyang, National & Local Joint Laboratory of Engineering for Efficient Utilization of Regional Mineral Resources from Karst Areas, Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang, Guizhou, ChinaMining College, Guizhou University, Guiyang, National & Local Joint Laboratory of Engineering for Efficient Utilization of Regional Mineral Resources from Karst Areas, Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang, Guizhou, ChinaAiming at a certain coal slime in Guizhou, the yield rate of -0.074mm class is 54.19%, the ash content is 40.55%, the yield rate of -0.045 mm class is 40.38%, the ash content is 40.79%, and contains a lot of pearl clay, Clay minerals such as kaolinite and double kaolinite, difficlut floated and high-ash coal slime that are easy sliming. The optimal flotation conditions of -0.5+0.25 mm, -0.25+0.074 mm and -0.074 mm classes (slurry concentration, collector dosage, frother dosage and mixing speed)were confirmed by the method of classification flotation. The optimal flotation conditions of -0.5+0.25 mm, -0.25+0.074 mm and -0.074 mm classes were compared with the whole flotation of -0.5mm class. The results show that the optimal dosage of reagents and process parameters for each size classes are different. Under the optimal flotation conditions, the yield of clean coal of classification flotation is higher than that of the full size flotation, and the ash content is lower than that of the full size flotation. The yield of tailings is lower than that of the full size flotation, and the ash content is higher than that of the full size flotation. That is, the flotation of the classification flotation is significant for the slime.http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2022.02.026high ashdifficult to separate slimeclassification flotationsize class |
| spellingShingle | Tianshen Lu Zhengbin Deng Zhihong Liu Wei Cheng Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation Kuangchan zonghe liyong high ash difficult to separate slime classification flotation size class |
| title | Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation |
| title_full | Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation |
| title_fullStr | Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation |
| title_full_unstemmed | Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation |
| title_short | Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation |
| title_sort | experimental study on deashing of high ash and refractory coal slime by classification flotation |
| topic | high ash difficult to separate slime classification flotation size class |
| url | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2022.02.026 |
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