scholarly journals Pelletizing Analysis on MgO-Fluxed Pellets by DEM

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 821
Author(s):  
Fang Long ◽  
Fengman Shen ◽  
Xin Jiang ◽  
Fu Yang ◽  
Yulu Zhou ◽  
...  
Keyword(s):  
Discrete Element Method ◽  
Simulation Model ◽  
Tilt Angle ◽  
Rotational Speed ◽  
Discrete Element ◽  
Charge Ratio ◽  
Simulation Results ◽  
Fluxed Pellets ◽  
Element Method

The Discrete Element Method (DEM) was used to analyze the pelletization process of MgO-fluxed pellets. The effects of the charge ratio and rotational speed of the disc pelletizer on the behavior of MgO-fluxed pellets were investigated by using a simulation. The simulation results show that under the condition of a certain tilt angle of the disc pelletizer (the tilt angle is 49°), the suitable parameters of the disc pelletizer are that the charge ratio is 20% and the rotational speedis 0.7 N/NC. This simulation model proposed will be useful to research pellets behavior and for the design of disc pelletizers.

scholarly journals Effect of Paddle Rotational Speed on Particle Mixing Behavior in Electrophotographic System by Using Parallel Discrete Element Method

2009 ◽  
Vol 46 (3) ◽  
pp. 169-179
Author(s):  
Hiroshi Mio ◽  
Ryohei Higuchi ◽  
Wakana Ishimaru ◽  
Atsuko Shimosaka ◽  
Yoshiyuki Shirakawa ◽  
...  
Keyword(s):  
Discrete Element Method ◽  
Rotational Speed ◽  
Discrete Element ◽  
Particle Mixing ◽  
Mixing Behavior ◽  
Element Method

scholarly journals A Simulation Model for Determining the Mechanical Properties of Rapeseed using the Discrete Element Method

2015 ◽  
Vol 59 (4) ◽  
pp. 575-582 ◽  
Author(s):  
Kornél Tamás ◽  
Bernát Földesi ◽  
János Péter Rádics ◽  
István J. Jóri ◽  
László Fenyvesi
Keyword(s):  
Mechanical Properties ◽  
Discrete Element Method ◽  
Simulation Model ◽  
Discrete Element ◽  
Element Method

scholarly journals Simulation and verification for seed-filling performance of cell wheel precision seed metering device based on discrete element method

2018 ◽  
Vol 169 ◽  
pp. 01035
Author(s):  
Qinghui Lai ◽  
Ziwu Hua ◽  
Jinlong Xing ◽  
Wenpeng Ma
Keyword(s):  
Discrete Element Method ◽  
Rotational Speed ◽  
Simulation Analysis ◽  
Discrete Element ◽  
Filling Ratio ◽  
Test Bed ◽  
Seed Filling ◽  
Filling Device ◽  
Seed Metering Device ◽  
Element Method

The cell wheel seed metering device was improved and a stirring seed-filling device was added to improve the seed-filling performance of cell wheel pseudo-ginseng precision seed metering devices. Using pseudo-ginseng seeds in Wenshan Prefecture, Yunnan Province as the objects for seed metering, the software application EDEM was adopted based on the discrete element method for the simulation calculation and analysis of the seed-filling performance of the seed metering device under 4 rotational speeds of the cell wheel and 6 rotational speeds of the stir wheel. The simulation results indicate that the filling ratio increases as the rotational speed of the stir wheel increases under a constant rotational speed of the cell wheel. Test verification of the simulation analysis results was conducted on the test bed of the seed metering device. The results indicate that increasing the rotational speed of the stir wheel can obtain a filling ratio of over 90%. The test results display a similar variation trend to that of the simulation analysis with an error of average filling ratio less than 5%. Therefore, it is feasible to analyze the seed-filling performance of the stirring and seed-filling device of the seed metering device with the discrete element method.

Effect of paddle rotational speed on particle mixing behavior in electrophotographic system by using parallel discrete element method

2009 ◽  
Vol 20 (4) ◽  
pp. 406-415 ◽  
Author(s):  
Hiroshi Mio ◽  
Ryohei Higuchi ◽  
Wakana Ishimaru ◽  
Atsuko Shimosaka ◽  
Yoshiyuki Shirakawa ◽  
...  
Keyword(s):  
Discrete Element Method ◽  
Rotational Speed ◽  
Discrete Element ◽  
Particle Mixing ◽  
Mixing Behavior ◽  
Element Method

scholarly journals Analysis of the mixing of solid particles in the slant cone and ploughshare mixers via Discrete Element Method (DEM)

2021 ◽  
Author(s):  
Seyed-Meysam Seyed-Alian
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Solid Particles ◽  
Mixing Efficiency ◽  
Dem Simulation ◽  
Initial Loading ◽  
Positron Emission ◽  
Simulation Results ◽  
Fill Level ◽  
Element Method

Discrete element method (DEM) was employed to characterize the mixing of the solid particles in two different types of the powder blenders. In the first part of this study, DEM was used to investigate the effects of initial loading, drum speed, fill level, and agitator speed on the mixing efficiency of a slant cone mixer. DEM simulation results were in good agreement with the experimentally determined data, both qualitatively and quantitatively. In the second part of this study, DEM was employed to characterize the mixing of the solid particles in a Ploughshare mixer. To validate the model, the simulation results were compared to the positron emission particle tracking (PEPT) data reported in the literature. The validated DEM was then utilized to calculate the mixing index as a function of the initial loading, plough rotational speed, fill level, and particle size for a ploughshare mixer.

scholarly journals Analysis of the mixing of solid particles in the slant cone and ploughshare mixers via Discrete Element Method (DEM)

2021 ◽  
Author(s):  
Seyed-Meysam Seyed-Alian
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Solid Particles ◽  
Mixing Efficiency ◽  
Dem Simulation ◽  
Initial Loading ◽  
Positron Emission ◽  
Simulation Results ◽  
Fill Level ◽  
Element Method

Discrete element method (DEM) was employed to characterize the mixing of the solid particles in two different types of the powder blenders. In the first part of this study, DEM was used to investigate the effects of initial loading, drum speed, fill level, and agitator speed on the mixing efficiency of a slant cone mixer. DEM simulation results were in good agreement with the experimentally determined data, both qualitatively and quantitatively. In the second part of this study, DEM was employed to characterize the mixing of the solid particles in a Ploughshare mixer. To validate the model, the simulation results were compared to the positron emission particle tracking (PEPT) data reported in the literature. The validated DEM was then utilized to calculate the mixing index as a function of the initial loading, plough rotational speed, fill level, and particle size for a ploughshare mixer.

Grain based modelling of rocks using the combined finite-discrete element method

2020 ◽  
Author(s):  
Aly Abdelaziz
Keyword(s):  
Shear Band ◽  
Discrete Element Method ◽  
Grain Boundaries ◽  
Mechanical Behaviour ◽  
Discrete Element ◽  
Crystalline Rocks ◽  
Simulation Results ◽  
Macroscopic Response ◽  
Element Method

This paper describes the implementation and advantages of grain based modelling (GBM) in the combined finite-discrete element method (FDEM) to study the mechanical behaviour of crystalline rocks. GBM in FDEM honours grain petrological properties and explicitly models grain boundaries. The simulation results demonstrated that GBM in FDEM predicted more realistic microscopic and macroscopic response of rocks than conventional FDEM models. The explicit modelling of crack boundaries captured microscopic failure transition from along grain boundaries to coalescence along the shear band, dominated by intraphase cracks. This novel framework presents a gateway into further understanding the behaviour of crystalline rocks and granular minerals.

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