scholarly journals Research on the Wear Behavior of the Fixed Cone Liner of a Cone Crusher Based on the Discrete Element Method

ACS Omega ◽  
2020 ◽  
Vol 5 (19) ◽  
pp. 11186-11195
Author(s):  
Dasheng Li ◽  
Yonghai Wang ◽  
Chao Wang ◽  
Sehui Li
Keyword(s):  
Discrete Element Method ◽  
Wear Behavior ◽  
Discrete Element ◽  
Cone Crusher ◽  
Element Method

scholarly journals A Dynamic Model of Inertia Cone Crusher Using the Discrete Element Method and Multi-Body Dynamics Coupling

Minerals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 862
Author(s):  
Jiayuan Cheng ◽  
Tingzhi Ren ◽  
Zilong Zhang ◽  
Dawei Liu ◽  
Xin Jin
Keyword(s):  
Discrete Element Method ◽  
Dynamic Model ◽  
Discrete Element ◽  
Optimal Operation ◽  
Model Verification ◽  
Throughput Capacity ◽  
Manufacturing Cost ◽  
Time Dynamic ◽  
Cone Crusher ◽  
Element Method

The cone crusher is an indispensable equipment in complex ore mineral processing and a variant of the cone crusher is the inertia cone crusher. A real-time dynamic model based on the multibody dynamic and discrete element method is established to analyze the performance of the inertia cone crusher. This model considers an accurate description of the mechanical motions, the nonlinear contact, and the ore material loading response. Especially the calibration of ore material simulated parameters is based on the Taguchi method for the Design of Experiments. For model verification, the industrial-scale experiment was conducted on a GYP1200 inertia cone crusher. Two different drive speeds were included in the experiments, and the testing devices were used to acquire crusher performances, for instance, displacement amplitude, power draw, product size distribution, and throughput capacity in order to accurately compare simulation results. The preliminary model can be qualitatively evaluated the flow pattern of particles and quantitatively evaluated the crushing force distribution in the concave. Furthermore, the simulation predicts the variety of crusher performances using the drive speed and the fixed cone mass as input variables. The simulation model provides novel insight regarding the improvement of linings wear period, lowering manufacturing cost, and obtaining optimal operation parameters.

scholarly journals Industrial Vertical Stirred Mills Screw Liner Wear Profile Compared to Discrete Element Method Simulations

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 397
Author(s):  
Priscila M. Esteves ◽  
Douglas B. Mazzinghy ◽  
Roberto Galéry ◽  
Luís C. R. Machado
Keyword(s):  
Discrete Element Method ◽  
Wear Behavior ◽  
Scale Up ◽  
Discrete Element ◽  
Maintenance Planning ◽  
Wear Measurement ◽  
Velocity Scale ◽  
Tumbling Mills ◽  
Industrial Measurement ◽  
Element Method

Vertical stirred mills have been widely applied in the minerals industry, due to its greater efficiency in comparison with conventional tumbling mills. In this context, the agitator liner wear plays an important role in maintenance planning and operational costs. In this paper, we use the discrete element method (DEM) wear simulation to evaluate the screw liner wear. Three different mill rotational velocities are evaluated in the simulation, according to different scale-up procedures. The wear profile, wear measurement, power consumption, and particle contact information are used for obtaining a better understanding of the wear behavior and its effects on grinding mechanisms. Data from a vertical stirred mill screw liner wear measurement obtained in a full-scale mill are used to correlate with simulation results. The results indicate a relative agreement with industrial measurement in most of the liner lifecycle, when using a proper mill velocity scale-up.

Simulation on the Wear Behavior of the Wear-Resistant Surfaces Using Discrete Element Method

2011 ◽  
Vol 199-200 ◽  
pp. 729-733
Author(s):  
Rui Zhang ◽  
Guang Ming Chen ◽  
Wen Feng Fan ◽  
Jian Qiao Li
Keyword(s):  
Discrete Element Method ◽  
Abrasive Wear ◽  
Wear Behavior ◽  
Discrete Element ◽  
Wear Loss ◽  
Dynamic Force ◽  
Wear Resistant ◽  
Abrasive Wear Behavior ◽  
Minor Injuries ◽  
Element Method

On the basis of the discrete element method (DEM), the non-linear mechanical model of the wear-resistant body surfaces was established. The step, convexity, and scale arranged structures of the wear-resistant surfaces and their abrasive wear systems were established with the software PFC2D®. Through the qualitative analysis on the morphology, the contact-bond fields and the contact-force chains, the minor injuries and the breakaway of the debris of the wear behaviors are observed. Besides, the dynamic force acted on the wear-resistant structures was studied through the quantitative analysis. Numeral simulation shows that the step structure was worn dramatically in its tip part, the convexity structure distributes the stress prominently and the scale structure shows the best wear-resistant function. The wear loss of the front monomers of the step, convexity, and scale structures are 2.43%, 2.02%, and 1.12% respectively after being worn for eight minutes in the simulation, which are in accordance with the experimental results. The numerical simulation on the abrasive wear behavior of the biological wear-resistant structures by DEM helps to reveal the wearable mechanism of the wear-resistant surfaces. Moreover, it provides a new method for studying the bionic wear-resistant surfaces and structures.

Discrete element method to model cracking for two layer systems

TAPPI Journal ◽  
2019 ◽  
Vol 18 (2) ◽  
pp. 101-108
Author(s):  
Daniel Varney ◽  
Douglas Bousfield
Keyword(s):  
Discrete Element Method ◽  
Flexural Modulus ◽  
Single Layer ◽  
Discrete Element ◽  
Flexural Stress ◽  
Layer System ◽  
Three Point Bending ◽  
Moving Force ◽  
Coating Layers ◽  
Element Method

Cracking at the fold is a serious issue for many grades of coated paper and coated board. Some recent work has suggested methods to minimize this problem by using two or more coating layers of different properties. A discrete element method (DEM) has been used to model deformation events for single layer coating systems such as in-plain and out-of-plain tension, three-point bending, and a novel moving force picking simulation, but nothing has been reported related to multiple coating layers. In this paper, a DEM model has been expanded to predict the three-point bending response of a two-layer system. The main factors evaluated include the use of different binder systems in each layer and the ratio of the bottom and top layer weights. As in the past, the properties of the binder and the binder concentration are input parameters. The model can predict crack formation that is a function of these two sets of factors. In addition, the model can predict the flexural modulus, the maximum flexural stress, and the strain-at-failure. The predictions are qualitatively compared with experimental results reported in the literature.

Discrete element method–computational fluid dynamics analyses of flexible fibre fluidization

2021 ◽  
Vol 910 ◽  
Author(s):  
Yiyang Jiang ◽  
Yu Guo ◽  
Zhaosheng Yu ◽  
Xia Hua ◽  
Jianzhong Lin ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Discrete Element Method ◽  
Discrete Element ◽  
Dynamics Analyses ◽  
Element Method

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