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The Simulation Of Key Technical Parameters And Internal Flow Field Of Mixer

Posted on:2016-09-10Degree:MasterType:Thesis
Country:ChinaCandidate:F Q HanFull Text:PDF
GTID:2191330461450949Subject:Mechanical Manufacturing and Automation
Abstract/Summary:PDF Full Text Request
In this paper, Cline efficient mixer for the study, in a comprehensive analysis of the use of three-dimensional design software SOLIDWORKS design mixer barrel and paddle on the basis of the traditional mixer, mixing principle in its analysis of the mixing process, by simplifying its three-dimensional model, the tilt angle of the cylinder mixer, agitator shaft mounting position and stirring on the blade length of the mixing effect; three-dimensional flow field theory based on the integrated use of SOLIDWORKS, DEM-EDEM, FLUENT software, for Cline efficient mixer flow field inside the cylinder fluid dynamics analysis.Through the existing vertical shaft mixer agitator blades and barrel to the comparative analysis in the form of features, integrated learning and use of domestic research and development on the basis of mixer technology, to design a new type of Cline mixer. The mixer is counter current principle of efficient mixing apparatus, a hybrid disc to-4rad/s speed clockwise, counterclockwise shaft rotation speed 30rad/s, so that by mixing the plate and the relative movement of the agitator shaft so that the material not only for the horizontal movement also vertical movement, the purpose of mixing can be achieved in a short time. Combining computational fluid dynamics theory, EDEM discrete element method, analog mixed-case simulation barrel materials, setting 10 s, 20 s, 30 s, 40 s, 50 s five time periods to calculate the degree of mixing were analyzed.Selecting the appropriate parameters of the model for finite element analysis, the use of multiple reference frame(MRF) and the finite volume method using ANSYS ICEM structured mesh, mixing tube establishing fluid dynamics model. Using fluid dynamics of solid, liquid mixture model, the motion state of the fluid cylinder stirred under action of the stirring blade were analyzed to study the cylinder inclination angle, and the stirring impact blade length changes in the speed of mixing quality, speed and pressure, respectively obtained cloud, and establish a correspondence between the mixing tube flow field performance and stirring performance. The new findings will later mixer drum and mixing shaft development and performance predictions provide theoretical guidance and basis.
Keywords/Search Tags:Agitation, Parameterization, Discrete element analysis, Flow field simulation
PDF Full Text Request
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