| Analysis of Factors Affecting Carbon Black Particle Breakage Rate in Pneumatic Conveying Process |
| Received:August 23, 2016 Revised:August 23, 2016 |
| DOI： |
| Key Words: pneumatic conveying；carbon black；breakage rate |
| Author Name | Affiliation | E-mail | | LI yong | Qingdao University of Science Technology,QingDao,266061 | 992215436@qq.com | | liu wei dong* | Qingdao University of Science Technology,QingDao,266061 | 992215436@qq.com |
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| Abstract: |
| The factors affecting particle breakage rate of carbon black in pneumatic conveying process were analyzed.The effects of carbon black varieties and granulation methods，individual pellet crush strength of carbon black，conveying distance，air velocity，conveying mode and pipeline cleaning had great influence on the particles breakage rate of carbon black.In consideration of various factors，the optimization of pneumatic conveying system was proposed.The particle breakage rate of wet granulated carbon black was much lower than that of dry granulated carbon black.Therefore，the particle breakage rate of carbon black should be set separately according to the granulation method.The wet granulation process should be optimized for carbon black granulation.In order to ensure the particles breakage rate of carbon black less than 10% after transportation，the individual pellet crush strength of carbon black should be higher than 30 g，and the distribution of individual pellet crush strength of carbon black should not be too wide.The proportional speed control valve were used in automatic control system，the air velocity conveying carbon black could be adjust automatically，so that different carbon blacks could be transported in the best condition.The pipeline cleaning frequency should be reduced as much as possible. |
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