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| Reparation of Prebaked Anode by Blending Modified Asphalt with Waste Tar |
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Received:January 21, 2023
Revised:January 30, 2023
Accepted:February 01, 2023
Published Online:April 20, 2023
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| DOI：doi：10.3969/j.issn.1007-7545.2023.05.003 |
| KeyWord:waste tar; asphalt fume; composite binder; prebaked anode |
| Author | Institution |
| BAI Fan |
北京科技大学 冶金与生态工程学院 |
| LIU Feng-qin |
北京科技大学 冶金与生态工程学院 |
| ZHAO Hong-liang |
北京科技大学 冶金与生态工程学院 |
| YU Guo-qing |
北京科技大学 冶金与生态工程学院 |
| ZHEN Chun-yan |
北京科技大学 冶金与生态工程学院 |
| DING Bang-ping |
河北鸿科碳素材料有限公司 |
| LI Rong-bin |
北京科技大学 冶金与生态工程学院 |
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| Abstract: |
| In the process of flue gas purification of baking furnace in aluminum carbon enterprises, a large amount of waste tar condensed by electric tar-catcher is a kind of hazardous waste, and its disposal is an urgent environmental protection problem to be solved by the state and enterprises. A method and idea of using waste tar to replace part of modified asphalt for the production of prebaked anode was presented. The changes of physical and chemical indexes of waste tar after heat treatment, the experimental study and performance test of pre-baked anode prepared by waste tar blending instead of part of modified asphalt were studied in detail. The results show that the optimum heat treatment condition for waste tar is 220 ℃ for 12 h, and the maximum blending ratio for the preparation of prebaked anodes from waste tar is 15%. This method not only reduces the raw material cost of prebaked anode production, but also realizes the resource utilization of waste tar, which is conducive to reducing the environmental risk and economic burden of carbon enterprises. |
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