Movement and distribution of particles in the tank of jet and agitation combined flotation machine
In order to explore the movement and distribution of particles in the tank of jet and agitation co-flotation machine, a geometric model of the tank of jet and agitation co-flotation machine was established. The COMSOL software was used to simulate the flow field distribution and particle movement in...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of China Coal Society
2024-12-01
|
| Series: | Meitan xuebao |
| Subjects: | |
| Online Access: | http://www.mtxb.com.cn/article/doi/10.13225/j.cnki.jccs.2024.0007 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841543764444708864 |
|---|---|
| author | Tao WANG Wei ZHOU Zilei WANG Shujie WANG Lingling WANG Liang LI |
| author_facet | Tao WANG Wei ZHOU Zilei WANG Shujie WANG Lingling WANG Liang LI |
| author_sort | Tao WANG |
| collection | DOAJ |
| description | In order to explore the movement and distribution of particles in the tank of jet and agitation co-flotation machine, a geometric model of the tank of jet and agitation co-flotation machine was established. The COMSOL software was used to simulate the flow field distribution and particle movement in the flotation tank under impeller agitation, and a test system of jet and agitation co-flotation device was set up to test the particle dispersion effect. The results showed that some particles pass through the gap between the impeller blades and spiral downward under the action of flow field, the other part of the particles are thrown out by the blade and move helically around and up under the coupling effect of the blade and the flow field. The trajectory curves of all particles were drawn to explore the particle movement and distribution law during the operation of the flotation machine. It was found that the trajectory curves of particles at the bottom of the flotation cell, around the wall and at the corner of the tank have a high coincidence degree, which indicates that the probability of particles moving there is large. The coincidence degree of particle motion trajectories in the upper part of the flotation tank and the area between the wall and the impeller is small, and the probability of particle movement there is low, and only a few particles are distributed there. The uniformity of particle distribution does not increase with the increase of impeller stirring speed, but there is an optimal impeller working parameter. The results of simulation and test showed that the jet and agitation co-flotation machine has better particle dispersion performance under the condition of impeller speed of 6.25 r/s. The particle dispersion is affected by the shape and internal structure of the tank. Adding baffle or using column flotation cell can effectively promote the uniform distribution of particles. The study of the movement and distribution of particles in the tank is beneficial to optimize the structure of the jet and agitation co-flotation machine and improve its flotation efficiency. |
| format | Article |
| id | doaj-art-74a43eab51754880bd0babcf0a8a48e3 |
| institution | Kabale University |
| issn | 0253-9993 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Office of Journal of China Coal Society |
| record_format | Article |
| series | Meitan xuebao |
| spelling | doaj-art-74a43eab51754880bd0babcf0a8a48e32025-01-13T06:04:11ZzhoEditorial Office of Journal of China Coal SocietyMeitan xuebao0253-99932024-12-0149124977498510.13225/j.cnki.jccs.2024.00072024-0007Movement and distribution of particles in the tank of jet and agitation combined flotation machineTao WANG0Wei ZHOU1Zilei WANG2Shujie WANG3Lingling WANG4Liang LI5School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, ChinaIn order to explore the movement and distribution of particles in the tank of jet and agitation co-flotation machine, a geometric model of the tank of jet and agitation co-flotation machine was established. The COMSOL software was used to simulate the flow field distribution and particle movement in the flotation tank under impeller agitation, and a test system of jet and agitation co-flotation device was set up to test the particle dispersion effect. The results showed that some particles pass through the gap between the impeller blades and spiral downward under the action of flow field, the other part of the particles are thrown out by the blade and move helically around and up under the coupling effect of the blade and the flow field. The trajectory curves of all particles were drawn to explore the particle movement and distribution law during the operation of the flotation machine. It was found that the trajectory curves of particles at the bottom of the flotation cell, around the wall and at the corner of the tank have a high coincidence degree, which indicates that the probability of particles moving there is large. The coincidence degree of particle motion trajectories in the upper part of the flotation tank and the area between the wall and the impeller is small, and the probability of particle movement there is low, and only a few particles are distributed there. The uniformity of particle distribution does not increase with the increase of impeller stirring speed, but there is an optimal impeller working parameter. The results of simulation and test showed that the jet and agitation co-flotation machine has better particle dispersion performance under the condition of impeller speed of 6.25 r/s. The particle dispersion is affected by the shape and internal structure of the tank. Adding baffle or using column flotation cell can effectively promote the uniform distribution of particles. The study of the movement and distribution of particles in the tank is beneficial to optimize the structure of the jet and agitation co-flotation machine and improve its flotation efficiency.http://www.mtxb.com.cn/article/doi/10.13225/j.cnki.jccs.2024.0007flotation machinemotion and distribution of particlesplant optimizationjet and stirring |
| spellingShingle | Tao WANG Wei ZHOU Zilei WANG Shujie WANG Lingling WANG Liang LI Movement and distribution of particles in the tank of jet and agitation combined flotation machine Meitan xuebao flotation machine motion and distribution of particles plant optimization jet and stirring |
| title | Movement and distribution of particles in the tank of jet and agitation combined flotation machine |
| title_full | Movement and distribution of particles in the tank of jet and agitation combined flotation machine |
| title_fullStr | Movement and distribution of particles in the tank of jet and agitation combined flotation machine |
| title_full_unstemmed | Movement and distribution of particles in the tank of jet and agitation combined flotation machine |
| title_short | Movement and distribution of particles in the tank of jet and agitation combined flotation machine |
| title_sort | movement and distribution of particles in the tank of jet and agitation combined flotation machine |
| topic | flotation machine motion and distribution of particles plant optimization jet and stirring |
| url | http://www.mtxb.com.cn/article/doi/10.13225/j.cnki.jccs.2024.0007 |
| work_keys_str_mv | AT taowang movementanddistributionofparticlesinthetankofjetandagitationcombinedflotationmachine AT weizhou movementanddistributionofparticlesinthetankofjetandagitationcombinedflotationmachine AT zileiwang movementanddistributionofparticlesinthetankofjetandagitationcombinedflotationmachine AT shujiewang movementanddistributionofparticlesinthetankofjetandagitationcombinedflotationmachine AT linglingwang movementanddistributionofparticlesinthetankofjetandagitationcombinedflotationmachine AT liangli movementanddistributionofparticlesinthetankofjetandagitationcombinedflotationmachine |