| This thesis is designed a twin-screw rubber desulfurization device, it containsbarrel,intermeshing co-rotating twin screw in the barrel and heating device.The barrel has a feedingthroats,the twin screw comprises a compression ratio of the feeding conveying section,more thantwo mutually discontinuous shear extrusion section and two adjacent screw extrusion transitionsection between the shear section.It sovles the technical problem of the serious pollution of theexisting rubber desulfurization technology,high equipment requirements and high energyconsumption. Because intermeshing co rotating twin screw has the self-cleaning,the viscoseproblem of common double screw extruders is solved. Kneading blocks can provide fracture stressthat powder desulfurization required to.The device is a dual role of thermochemical, mechanicaldesulfurization.This design uses the combined type double screw, screw elements and kneading blockelements are connected in series, and combined into a screw structure suitable for rubberdesulfurization.The screw and the screw element, kneading blocks were modeled in UG.In this thesis, thestress that the shafts and the screws are bearing is analyzed by means of the numerical calculationwith the help of ANSYS software, and then both the shafts and the screws structures areimproved.In this paper, using professional software CFD POLYFLOW for flow field of screwelement.Simulation analysis of these two elements placed in the desulfurization section of screwelements in the process of shear flow channel, full state. Analysis of shear rate images, found bothin the rubber desulfurization shear on rules, and the comparison between the two different. |
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