Discrete Element Method-Based Simulation Analysis of the Horizontal Mechanical Coal Bunker System
DOI:
https://doi.org/10.54097/6xsy1n17Keywords:
Coal bunker, discrete element method, computer simulation, structural optimizationAbstract
The underground horizontal mechanical coal bunker system is an important component of the coal mine transportation system. Due to the solid-liquid characteristics of coal particles, the flow characteristics of coal particles during the loading process of the coal bunker system are very complex. Under certain conditions, problems such as leakage of the upper discharge baffle of the coal bunker, blockage of the discharge port of the unloading cart, low loading rate of the coal bunker, and even partial loading and overturning of the coal bunker may occur. This paper takes the underground 1000 ton level mechanical coal bunker developed by the company as the analysis object, uses discrete element analysis software to simulate and analyze the coal bunker system, obtains the flow characteristics of coal particles in the loading process of the coal bunker system, optimizes the structure of the coal bunker system and the loading process, and provides theoretical support for the design and successful application of the coal bunker system.
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[1] Cheng H, Gu W Z. Design and Construction of Large Diameter Coal Bunker. Coal Technology. 2023, 42 (06), pp. 80-83.
[2] Huang Y, Zhang P. Research and Development Direction Analysis of Underground Mechanical Horizontal Storage and Transportation Coal Bunker. Coal Mine Machinery. 2023, 44 (08), pp. 83-85.
[3] Yang N. Research on Structure Optimization of Plow Discharger of Belt Conveyor Based on DEM. Taiyuan University of Science and Technology. 2022.
[4] Wang P J, Zhu L, and Zhu X L. Flow pattern and normal pressure distribution in flat bottom silo discharged using wall outlet. Powder Technology, 2016, 295, pp. 104-114.
[5] Wang Y, Yong L, and Jin Y. Ooi. Numerical modelling of dynamic pressure and flow in hopper discharge using the Arbitrary Lagrangian - Eulerian formulation. Engineering Structures, 2013, 56, pp. 1308-1320.
[6] Peralta J P, Aguirre M A, Géminard J C, et al. Apparent mass during silo discharge: Nonlinear effects related to filling protocols. Powder Technology, 2017, 311, pp. 265-272.
[7] Weinhart T, Labra C, Luding S, et al. Influence of coarse-graining parameters on the analysis of DEM simulations of silo flow. Powder Technology, 2016, 293, pp. 138-148.
[8] Wang J, Yu H S, Langston P, et al. Particle shape effects in discrete element modelling of cohesive angular particles. Granular Matter, 2011, 13, pp. 1-12.
[9] González-Montellano C, Ramírez Á, Gallego E, et al. Validation and experimental calibration of 3D discrete element models for the simulation of the discharge flow in silos. Chemical Engineering Science, 2011, 66(21), pp. 5116-5126.
[10] Wang Y, Lu Y, Jin Y O. Finite element modelling of wall pressures in a cylindrical silo with conical hopper using an Arbitrary Lagrangian-Eulerian formulation. Powder Technology, 2014, 257(5), pp. 181-190.
[11] Uñac R O, Vidales A M, Benegas O A, et al. Experimental study of discharge rate fluctuations in a silo with different hopper geometries. Powder Technology, 2012, (225), pp. 214-220.
[12] Kobyłka R, Horabik J, Molenda M. Numerical simulation of the dynamic response due to discharge initiation of the grain silo. International Journal of Solids and Structures, 2017, (106-107), pp. 27-37.
[13] Zeng Y, Jia F, Zhang Y, et al. DEM study to determine the relationship between particle velocity fluctuations and contact force disappearance. Powder Technology, 2017, 313, pp. 112-121.
[14] Datta A, Mishra B K, Das S P, et al. A DEM Analysis of Flow Characteristics of Noncohesive Particles in Hopper. Materials and Manufacturing Processes, 2008, 23, pp. 196-203.
[15] Wang X W, Qin Y, Yang X Y, et al. Analysis on flow features of bulk coal during coal unloading period based on EDEM. Coal Science and Technology, 2015, 43(5), pp. 130-134.
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