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| Structure of the Triangular Tube wall blade Static Mixer and Numerical Simulation of Its Internal Flow Field |
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| DOI：10.11981/j.issn.1000-6842.2018.03.34 |
| Key Words:triangular tube-wall-blade; static mixer; structure; mixing flow field characteristics; FLUENT; numerical simulation |
| Fund Project:南京林业大学江苏省制浆造纸科学与技术重点实验室开放基金（201615）；江苏高校优势学科建设工程资助项目(PAPD)。 |
| Author Name | Affiliation | | CHEN Chen1，2 | 1.Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037
2.Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 | | PI Cheng-zhong1，2 | 1.Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037
2.Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 | | YANG Zhen-liang3 | 3. Jiangsu Lee & Man Paper Manufacture Limited， Changshu， Jiangsu Province， 215536 | | ZHANG Hui1，2，* | 1.Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037
2.Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 |
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| Abstract: |
| In order to meet the development requirements of more and more chemicals added through static mixers in papermaking process， and to overcome the shortcomings of traditional static mixer， such as the complex structure of the mixer， the difficulty of cleaning up， common occurance of plugging and damaging the structure of some added polymer chemicals， a new type of static mixer with triangular tube-wall-blade was developed. The internal structure characteristic of the device was that 3 blades from the tube-wall were evenly distributed on the inner wall of the tube with 120 degrees. The internal flow field in working process was simulated by FLUENT software， and an experimental device was established to verify the simulation results. The flow field simulation analysis of FLUENT showed that the static mixer could make the internal flow field change effectively in pressure， velocity， direction and fluid turbulence， and then mix the fluid material fully. Compared with the commonly used Kenics standard static mixer at present， the new static mixer with the triangular tube wall blade was simple, efficient， energy saving， not easy to happen adhereing the pulp to the blade and the tube wall, and not easy to destroy the structure of polymer chemicals. It could divert and mix fluid materials． |
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