Model of Consecutive, Steady-State Underflow for Vertical Tailing Silos
A continuous tailing discharge model is proposed for solving the problems of high fluctuation in underflow concentration and low, unstable actual discharge concentration in vertical tailing silos. On the basis of the mass balance equation, a mathematical model for continuous tailing discharge is der...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2980548 |
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| author | Wei-cheng Ren Ru-gao Gao De-qing Gan You-zhi Zhang |
| author_facet | Wei-cheng Ren Ru-gao Gao De-qing Gan You-zhi Zhang |
| author_sort | Wei-cheng Ren |
| collection | DOAJ |
| description | A continuous tailing discharge model is proposed for solving the problems of high fluctuation in underflow concentration and low, unstable actual discharge concentration in vertical tailing silos. On the basis of the mass balance equation, a mathematical model for continuous tailing discharge is derived, and a partial differential equation related to the height of the tailing silo in the compression area and tailing slurry concentration is obtained. The effective solid stress equation and the solid flux equation can be obtained from the results of centrifuge tests and intermittent sedimentation tests. The volume concentrations of underflow corresponding to various heights of tailing surfaces are simulated by using fluid mechanics software under dynamic balancing conditions. The results of the simulations are highly similar to those calculated by the derived mathematical model of continuous tailing discharge, and the results of the industrial test are also closely related to the results of the differential equation, thereby verifying the accuracy of the proposed discharge model. |
| format | Article |
| id | doaj-art-96ff1eb6a6f64e8bae5a7f83da3e3ae6 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-96ff1eb6a6f64e8bae5a7f83da3e3ae62025-08-20T03:37:09ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/29805482980548Model of Consecutive, Steady-State Underflow for Vertical Tailing SilosWei-cheng Ren0Ru-gao Gao1De-qing Gan2You-zhi Zhang3School of Mining Engineering, North China University of Science and Technology, Tangshan 063009, Hebei, ChinaCollege of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, ChinaSchool of Mining Engineering, North China University of Science and Technology, Tangshan 063009, Hebei, ChinaSchool of Mining Engineering, North China University of Science and Technology, Tangshan 063009, Hebei, ChinaA continuous tailing discharge model is proposed for solving the problems of high fluctuation in underflow concentration and low, unstable actual discharge concentration in vertical tailing silos. On the basis of the mass balance equation, a mathematical model for continuous tailing discharge is derived, and a partial differential equation related to the height of the tailing silo in the compression area and tailing slurry concentration is obtained. The effective solid stress equation and the solid flux equation can be obtained from the results of centrifuge tests and intermittent sedimentation tests. The volume concentrations of underflow corresponding to various heights of tailing surfaces are simulated by using fluid mechanics software under dynamic balancing conditions. The results of the simulations are highly similar to those calculated by the derived mathematical model of continuous tailing discharge, and the results of the industrial test are also closely related to the results of the differential equation, thereby verifying the accuracy of the proposed discharge model.http://dx.doi.org/10.1155/2019/2980548 |
| spellingShingle | Wei-cheng Ren Ru-gao Gao De-qing Gan You-zhi Zhang Model of Consecutive, Steady-State Underflow for Vertical Tailing Silos Advances in Materials Science and Engineering |
| title | Model of Consecutive, Steady-State Underflow for Vertical Tailing Silos |
| title_full | Model of Consecutive, Steady-State Underflow for Vertical Tailing Silos |
| title_fullStr | Model of Consecutive, Steady-State Underflow for Vertical Tailing Silos |
| title_full_unstemmed | Model of Consecutive, Steady-State Underflow for Vertical Tailing Silos |
| title_short | Model of Consecutive, Steady-State Underflow for Vertical Tailing Silos |
| title_sort | model of consecutive steady state underflow for vertical tailing silos |
| url | http://dx.doi.org/10.1155/2019/2980548 |
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