| Analysis of Carbon Black Conveying Characteristics in Pneumatic Conveying Elbow |
| Received:March 08, 2021 Revised:March 08, 2021 |
| DOI：10.12136/j.issn.1000-890X.2021.10.0769 |
| Key Words: carbon black；solid particles；gas-solid two-phase flow；pneumatic conveying；elbow； pressure loss；abrasion |
| Author Name | Affiliation | E-mail | | LI Zhihua | Qingdao University of Science and Technology | 821734386@qq. com | | ZHAO Xianbing | Qingdao University of Science and Technology | 821734386@qq.com | | HU Lihao | Qingdao University of Science and Technology | | | SU Xin | Qingdao University of Science and Technology | |
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| Abstract: |
| The influence of the bending diameter ratio （δ） on the pressure loss and the solid particles moving speed in the conveying elbow and the wear of the elbow inner wall when carbon black （solid particles） were pneumatically conveyed through the elbow were studied.When δ was less than 5，as δ increased，the pressure loss in conveying elbow decreased，the solid particles moving speed increased，and the wear degree of the elbow inner wall was reduced.When δ increased to 5，the pressure loss and the solid particles movement speed in conveying elbow and wear rate of the elbow inner wall changed slow down.At designing the carbon black pneumatic conveying elbow，δ in the range of 5～7 could reduce the abrasion degree of the conveying elbow inner wall and the energy consumption of the conveying，and it could also meet the layout and process requirements of the conveying pipeline. |
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