| Numerical Simulation and Analysis on Pneumatic Conveying of Carbon Black in Bend Pipeline |
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| DOI： |
| Key Words: carbon black；bend pipeline；pneumatic conveying；numerical simulation |
| Author Name | Affiliation | | LI Zhi-hua | Qingdao University of Science and Technology | | LI Xu-chao | Qingdao University of Science and Technology | | LIU Guang-peng | Qingdao University of Science and Technology |
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| Abstract: |
| The mathematical model of the dense-phase pneumatic conveying of carbon black was established，and the flow state of carbon black particles in the bend pipeline was simulated and analyzed.The results showed that，the flow state of carbon black particles in the bend pipeline was unstable，so the number of bend pipelines should be as few as possible and the distance between neighboring bend should be long enough.It was found that the bend pipeline was worn easily，and the maximum pressure appeared in the outer wall at the angles from 30°to 60°of the bend pipeline，where the wear was most serious.A replaceable liner could be applied at the easily worn position to prolong the service life of the bend pipeline.The conveying pressure drop was dependent onR/D ratio， and the pressure drop was minimized when R/D was 5，while the conveying was stable and energy consumption was low. |
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