| The separating of Biologic product demands high and intricate technology and expensive cost. Researchers try to develop a sort of high efficiency bio-separate machine that is compatible with industry. YDF high-speed biologic separator is a new style centrifuge developed by Sichuan Intercreate bioprocess technology Co.Ltd. Its separate factor of rotor drum reaches 20000G and its productive capacity reaches 300L / h, which keeps ahead in China. Firstly,principle of structure,technical parameter,design, using of the machine were introduced and hydrokinetics, techniques calculation,intensity check,influence factors of separation were discussed in this dissertation. Secondly, a series of small-sized and medium-sized test were done with green tea,beer yeast,bread yeast and human plasma protein, from which we have obtained separate laws and basic datum and results applying to some materials. Finally,numerical analysis for drum wall was proceeded with finite element analysis method. Contour plot of stress,strain,deforming and animation and nodal data were obtained,which provided reference for design optimization.YDF separator is composed of cradle components,drive components,rotor components and autocontrol components. For rotor drum the inner wall diameter is 250mm and the volume is 5L. The power of main motor is 4.7kw while the weight is only 1100kg. In this thesis,it has introduced flow field of fluid,sedimentation velocity of particle,limit diameter of particle,production capacity,separation...
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