Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified Tailings
Due to high-mud content in superfine unclassified tailings (SUT), the viscosity of cemented paste backfill (CPB) is high and its pipeline transportation properties are poor. Foaming technology was introduced to prepare a new three-phase flow backfill (TFB) using a foaming machine. Then the rheologic...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/6157869 |
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| author | Jian-wen Zhao Xin-min Wang Kang Peng Shuai Li |
| author_facet | Jian-wen Zhao Xin-min Wang Kang Peng Shuai Li |
| author_sort | Jian-wen Zhao |
| collection | DOAJ |
| description | Due to high-mud content in superfine unclassified tailings (SUT), the viscosity of cemented paste backfill (CPB) is high and its pipeline transportation properties are poor. Foaming technology was introduced to prepare a new three-phase flow backfill (TFB) using a foaming machine. Then the rheological parameters of TFB with different bubble ratio were measured and their pipeline transportation properties were simulated by Fluent. Besides, the simulation results were further verified by a semi-industrial loop test. The results indicate that the optimum ratio of TFB is a cement-sand ratio of 1 : 8, mass concentration of 70%, and bubble ratio of 20%. Compared with CPB, the decrease of bleeding rate, viscosity, and resistance loss of TFB is 27%, 25%, and 30%, respectively. Therefore, foaming technology is an innovative and feasible solution for high-mud CPB in reducing viscosity, decreasing resistance loss, and improving pipeline transporting efficiency. |
| format | Article |
| id | doaj-art-38415b4ac6fd4fb28c6b76beb99a1b94 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-38415b4ac6fd4fb28c6b76beb99a1b942025-02-03T01:02:43ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/61578696157869Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified TailingsJian-wen Zhao0Xin-min Wang1Kang Peng2Shuai Li3School of Resources and Safety Engineering, Central South University, Changsha 410083, ChinaSchool of Resources and Safety Engineering, Central South University, Changsha 410083, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Resources and Environmental Science, Chongqing University, Chongqing 400030, ChinaSchool of Resources and Safety Engineering, Central South University, Changsha 410083, ChinaDue to high-mud content in superfine unclassified tailings (SUT), the viscosity of cemented paste backfill (CPB) is high and its pipeline transportation properties are poor. Foaming technology was introduced to prepare a new three-phase flow backfill (TFB) using a foaming machine. Then the rheological parameters of TFB with different bubble ratio were measured and their pipeline transportation properties were simulated by Fluent. Besides, the simulation results were further verified by a semi-industrial loop test. The results indicate that the optimum ratio of TFB is a cement-sand ratio of 1 : 8, mass concentration of 70%, and bubble ratio of 20%. Compared with CPB, the decrease of bleeding rate, viscosity, and resistance loss of TFB is 27%, 25%, and 30%, respectively. Therefore, foaming technology is an innovative and feasible solution for high-mud CPB in reducing viscosity, decreasing resistance loss, and improving pipeline transporting efficiency.http://dx.doi.org/10.1155/2017/6157869 |
| spellingShingle | Jian-wen Zhao Xin-min Wang Kang Peng Shuai Li Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified Tailings Advances in Materials Science and Engineering |
| title | Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified Tailings |
| title_full | Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified Tailings |
| title_fullStr | Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified Tailings |
| title_full_unstemmed | Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified Tailings |
| title_short | Utilization of Foaming Technology in Cemented Paste Backfill of High-Mud Superfine Unclassified Tailings |
| title_sort | utilization of foaming technology in cemented paste backfill of high mud superfine unclassified tailings |
| url | http://dx.doi.org/10.1155/2017/6157869 |
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