链条破碎机破碎模型构建及能耗分析
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摘要
为了合理地设计链条破碎机结构及其参数,介绍了破碎机结构,标定了破碎仿真所需的参数,通过EDEM软件对破碎过程进行建模,分析了链条长度、转速、填充率等结构和工艺参数对有效功率、能耗占比的影响.研究表明:对于已确定外形尺寸径高为Φ600mm×300mm的设备,其破碎链半径取0.27mm,转速为947r/min,当填充率为0.31时,能耗占比最小,能够达到最大的经济效益.
In order to reasonably design the structure and its parameters of the chain crusher,this paper introduces the structure of chain crusher first,then calibrates the parameters of the crushing simulation.The crushing process was modeled by EDEM software.Then analyzes the influence of the structural parameters to the ratio of effective power and energy consumption,such as the chain length,rotation speed and filling rate The research shows the equipment with the determined diameter and heightΦ600 mm×300 mm.The conclusion is:when the radius of the broken chain is 0.27 mm,the rotation speed is 947 r/min,and the filling rate is 0.31,that can make the energy consumption ratio is the smallest and achieve the maximum economic benefit.
In order to reasonably design the structure and its parameters of the chain crusher,this paper introduces the structure of chain crusher first,then calibrates the parameters of the crushing simulation.The crushing process was modeled by EDEM software.Then analyzes the influence of the structural parameters to the ratio of effective power and energy consumption,such as the chain length,rotation speed and filling rate The research shows the equipment with the determined diameter and heightΦ600 mm×300 mm.The conclusion is:when the radius of the broken chain is 0.27 mm,the rotation speed is 947 r/min,and the filling rate is 0.31,that can make the energy consumption ratio is the smallest and achieve the maximum economic benefit.
引文
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[3]黄鹏鹏,李成,胡明亮.基于响应曲面法与离散元法的破碎过程能耗仿真分析[J].机械设计与制造,2016(10):78-82.HUANG P P,LI C,HU M L.Simulation and analysis on process of crushing energy consumption based on the response surface method[J].Mechanical Design and Manufacture,2016(10):78-82.
[4]王笑丹,王洪美,韩云秀,等.基于离散元法的牛肉咀嚼破碎模型构建[J].农业工程学报,2016,32:228-234.WANG X D,WANG H M,HAN Y X,et al.Structure of beef chewing model based on discrete element method[J].Transactions of the Chinese Society of Agricultural Engineering,2016,32:228-234.
[5]MAHATA K.On the estimation of complex modulus and Possion’s ratio using longitudinal wave experiments[J].Mechanical Systems and Signal Processing,2006,20(8):2080-2094.
[6]吴洪华,姜松.食品质地及其TPA测试[J].食品研究与开发,2005(5):130-133.WU H H,JIANG S.Food texture and TPA test[J].Food Research and Development,2005(5):130-133.
[7]ASAE.Compression test food materials of convex shape S368.2[S].2013:451-455.
[8]COETZEE C J,BASSON A H,VERMEER P A.Discrete and continuum modelling of excavator bucket filling[J].Journal of Terramechanics,2006,44(2):177-186.
[9]DEM Solution Ltd.EDEM theory reference guide[EB/OL].[2018-10-22].http:∥www.edemsimulation.com/resourceslearning/software-downloads/edem-documentation/.
[10]MISHRA B K.A review of computer simulation of tumbling mills by the discrete element method:part I contact mechanics[J].International Journal of Mineral Processing,2003,71(1):95-112.
[11]王俊.基于离散单元法的半自磨机工作性能研究[D].赣州:江西理工大学,2015.WANG J.Research on working performance of semiautogenous grinding mill based on discrete element method[D].Ganzhou:Jiangxi University of Science and Technology,2015.