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Improved Analysis for the Shape of Drum Bar of the Pulp Pressure Screen Based on CFD Numerical Simulation
  
DOI：10.11980/j.issn.0254-508X.2017.09.011
Key Words:pressure screen  sieve drum  stick  the pulp flow field  simulation  improve analyze
Fund Project:山东省重点研发计划项目(NO.2015GGX103022);济南市高校院所自主创新计划项目(NO.201401227)。
Author NameAffiliation
荣学青1 1.齐鲁工业大学机械与汽车工程学院,山东济南,250353 
史岩彬1，* 1.齐鲁工业大学机械与汽车工程学院,山东济南,250353 
张丽丽1 1.齐鲁工业大学机械与汽车工程学院,山东济南,250353 
苗海滨2 2.山东杰锋机械制造有限公司,山东淄博,255200 
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Abstract:In order to improve the production of pulp pressure screen, CFD （Computational Fluid Dynamics） was used to simulate the flow field around the screen drum bar. This paper compares the changes of flow field pressure, turbulence kinetic energy and velocity nephogram, which were caused by the change of the shape of the pressure screen drum bars. The results verified that when the bars shape changed, the position and size of the eddy current also changed. Furthermore, when the work condition and structures （other than bar） remained unchanged, the change of the shape of bars would cause changes in the export flow, which indicated that the width of the bar AB had influence on the flow field around the export of screen drum, furthermore, there was an optimal value of the width of AB．
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