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| Discrete element simulation optimization of the distribution effect of the distributor of the flap cooler based on EDEM |
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| DOI： |
| KeyWord:flap cooler distributor discrete element EDEM granular materials meal powder materials |
| FundProject:山东省重点研发计划（重大科技创新工程）（2021CXGC010808） |
| Author Name | Affiliation | | LI Geng1, XUE Yanan1, HUANG Yongna1, SHEN Yan2, ZHANG Jingming3,
LIN Fengyan2, WANG Wei2, ZHENG Feng2 | 1.Shandong Chemsta Machinery Manufacturing Co. , Ltd. , Jining 272000, Shandong, China
2.Jining Machinery
Design and Research Institute Co. , Ltd. , Jining 272000, Shandong, China
3.School of Automotive
Engineering, Harbin Institute of Technology, Weihai, Weihai 264209, Shandong, China |
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| Abstract: |
| Flap cooler is a kind of vertical cooling equipment based on counter current cooling principle.To solve the problem of uneven distribution of materials in the flap cooler and better adapt to materials with multiple forms and shapes, based on EDEM, discrete element simulation was conducted on the distribution of the distributor of the flap cooler for granular materials represented by soybean particles and meal powder materials represented by soybean low-temperature meal.Through the method of regression analysis through central combination experiments, the distribution dispersion rate was used as the response value to optimize the inclination angle (referred to as the inclination angle between the sprinkling tray and the lead hammer surface), as well as the rotational speed of the shaft.The optimization results were applied to the distributor of the flap cooler in the cooling section of the quarantine soybean inactivation process.The results showed that when the material type was represented by soybean particles, the optimal distribution effect was achieved when the inclination angle was 53.59° and the rotational speed of the shaft was 45.91 r/min, with a distribution dispersion rate of 244%; when the material type was represented by soybean low-temperature meal, the optimal distribution effect was achieved when the inclination angle was 49.02° and the rotational speed was 46.45 r/min, with a distribution dispersion rate of 2.99%.The actual engineering application results showed that the soybean particle distribution was generally uniform and had good cooling performance.In summary, it is feasible and effective to optimize the distribution effect of the distributor for the flap cooler based on EDEM. |
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