Research on the axial velocity of the raw coal particles in vertical screw conveyor by using the discrete element method

An incorrect formula of the average axial speed can lead to the incorrect derivation of the conveying volume formula, which in turn can produce an incorrect design of the vertical screw conveyor. In this study, the conveying model of the vertical screw conveyor and the raw coal particle model are es...

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Bibliographic Details
Published inJournal of mechanical science and technology Vol. 35; no. 6; pp. 2551 - 2560
Main Authors Yang, Zhao, Xiaoxia, Sun, Wenjun, Meng
Format Journal Article
LanguageEnglish
Published Seoul Korean Society of Mechanical Engineers 01.06.2021
Springer Nature B.V
대한기계학회
Subjects
Coal
Control
Conveying
Derivation
Design optimization
Discrete element method
Dynamical Systems
Engineering
Flow control
Histograms
Industrial and Production Engineering
Mechanical Engineering
Original Article
Screw conveyors
Velocity
Velocity distribution
Vibration
기계공학
Multivariable fitting method
Discrete element method
Diversity structure
Average axial speed
Vertical screw conveyor
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Summary:An incorrect formula of the average axial speed can lead to the incorrect derivation of the conveying volume formula, which in turn can produce an incorrect design of the vertical screw conveyor. In this study, the conveying model of the vertical screw conveyor and the raw coal particle model are established. Using the discrete element method, the influence of various parameters, such as the spiral speed, filling rate, pipe diameter, and pitch, on the axial velocity of the raw coal particles is calculated, simulated, and analyzed. Corresponding to the average axial velocity distribution histogram and the derivation of the particle average axial velocity formula, a theoretical basis for the optimization design of the vertical screw conveyor is provided.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-021-0526-z