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Preliminary study based on FLUENT screw conveyor conveying mechanism

Author: LengBingBing
Tutor: MengWenJun
School: Taiyuan University of Science and Technology
Course: Agricultural Mechanization Engineering
Keywords: Screw Conveyor Bulk Material Handling Transport mechanism FLUENT Vortex
CLC: TH224
Type: Master's thesis
Year: 2007
Downloads: 586
Quote: 1
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Abstract


Currently, the development of industrial fields largely depends on the materials handling of the dispersion , with the increase in the amount of transport of bulk materials , there is an urgent need higher efficiency, higher storage capacity of the transport system . Widely used in the field of bulk material handling screw conveyor with its unique advantages , especially the port bulk handling . The screw conveyor is mainly used in feeding , stirring unloader ( car ) and the delivery system , because of its design and manufacturing has been in use in accordance with the method of calculation of the the classic screw conveyor mechanism ( such as single- particle method and materials group method , etc.) . The classic screw conveyor conveying mechanism has been unable to meet the current efficient development and design of bulk materials handling systems , high efficiency screw conveyor can also use double-headed spiral , but rarely described in the literature through the the stud screw conveyor design calculation , only We can roughly calculate the throughput , often caused by a design error . With the help of scattered school physical the classic Couette flow concept continuum hypothesis and aerodynamics , the granular material interaction as a viscous forces within the screw conveyor , hydrodynamics, the granular material as a fluid . FLUENT software simulation analysis, the the logistics distribution pattern in the vertical screw conveyor . With a double-headed spiral vertical screw conveyor fill rate of up to 100 % Fuller pump variable pitch helix formation material closure works constructed screw conveyor material sealed state , the FLUENT analysis results show that this material sealed state for dynamic material sealed , and the formation of negative pressure vortex promote material handling . The density of the vertical screw conveyor within the material movement , and the corresponding calculation method , but also contribute to the study of the the screw conveyor vortex transport mechanism . Spirochetes within the closed system high-speed rotating vortex formed to break through the traditional concept of a traditional screw conveyor delivery mechanism mechanics , and push forward the process of the development of the screw conveyor conveying mechanism , and open up a new chapter in the development of our screw conveyor .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Lifting machinery and transport machinery > Transport machinery > Screw conveyor
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