[1]邢志中,郭 卫,张武刚,等.基于离散元法的粉碎机冲击力测试[J].西安科技大学学报,2019,(06):1041-1048.
 XING Zhi-zhong,GUO Wei,ZHANG Wu-gang,et al.Test of impact force of crusher based on discrete element method[J].Journal of Xi'an University of Science and Technology,2019,(06):1041-1048.
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基于离散元法的粉碎机冲击力测试(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2019年06期
页码:
1041-1048
栏目:
出版日期:
2019-12-20

文章信息/Info

Title:
Test of impact force of crusher based on discrete element method
文章编号:
1672-9315(2019)06-1041-08
作者:
邢志中郭 卫张武刚王 渊路正雄李实军
(西安科技大学 机械工程学院,陕西 西安710054)
Author(s):
XING Zhi-zhongGUO WeiZHANG Wu-gangWANG YuanLU Zheng-xiongLI Shi-jun
(College of Mechanical and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)
关键词:
离散元 中黄39大豆 立式粉碎机 冲击力 粉碎内腔
Keywords:
discrete element Zhonghuang 39 soybean vertical crusher impact force crushing inner cavity
分类号:
TD 402
文献标志码:
A
摘要:
为分析前后立式粉碎机粉碎内腔所受冲击力的情况及其影响因素,对改进前后立式粉碎机、中黄39大豆进行实体测量,测定其物理特性与力学特性,建立其EDEM模型并进行模拟仿真,得知:改进前后粉碎机粉碎下盖内腔所受冲击力均大于各自上盖内腔,改进后粉碎机下盖内腔所受冲击力大于改进前,改进前后粉碎机上盖内腔所受冲击力大小无明显区别。以1.01~1.20 s改进前后粉碎机粉碎下盖内腔所受冲击力为评价指标,研究不同大豆数目以及不同粉碎刀具的转速对下盖内腔所受冲击力的影响。结果表明:随着大豆颗粒从100粒增至800粒,改进前后粉碎机下盖内腔所受冲击力增大值出现在大豆数目为600左右。随着粉碎刀具转速从6 200增至7 000 rpm改进前后粉碎机下盖内腔所受冲击力逐渐增大。且在相同转速以及相同大豆颗数的情况下,改进后粉碎机下盖内腔所受冲击力均大于改进前。改进前后粉碎机下盖内腔所受冲击力最大值出现大豆数目为600,刀具转速为7 000 rpm,其值分别为64.97与69.56 N,改进前后粉碎机下盖内腔所受冲击力最小值出现大豆数目为400,刀具转速为6 200 rpm,其值分别为39.35与41.27 N.试验与软件仿真结果所得结论一致,该结果为研究立式粉碎机的粉碎内腔冲击力提供理论参考与依据。
Abstract:
In order to analyze the impact force on the inner chamber of the vertical mill before and after improvement and its influencing factors,the physical and mechanical properties of the improved vertical crusher and Zhonghuang 39 soybean were measured with the EDEM model established and simulated.It was found that the impact force on the lower cover of the crusher before and after improvement was greater than that on the respective upper cover.The impact force on the lower cover of the improved crusher was greater than that before improvement,and the impact on the upper was greater than that before improvement,without any obvious difference in strength.Taking the impact force on the inner of the lower cover of the crusher before and after 1.01~1.20 s improvement as the evaluation index,a study was made of the impact force on the inner cavity of the lower cover of the crusher with different number of soybeans and the rotational speed of different crushing tools.The results showed that with the increase of soybean particles from 100 to 800,the impact force on the inner chamber of the lower cover of the crusher before and after the improvement appeared in the number of soybeans about 600.The impact force on the inner of the lower cover of the crusher increases gradually with the increase of the rotational speed of the crushing tool from 6 200 to 7 000 rpm.Under the same rotational speed and the same number of soybean seeds,the impact force on the inner of the lower cover of the improved crusher is greater than that before the improvement.The maximum impact force on the lower cover of the mill before and after improvement is 600 soybeans,and the tool speed 7 000 rpm,which are 64.97 and 69.56 N,respectively.The minimum impact force on the lower cover of the mill before and after improvement is 400 soybeans,and the tool speed is 6 200 rpm,which are 39.35 and 41.27 N,respectively.The results of the experiment are in agreement with those of the software simulation,which provides theoretical reference and basis for t

参考文献/References:

[1] 陈树召.大型露天煤矿他移式破碎站半连续工艺系统优化与应用研究[J].煤炭学报,2012,37(3):533-534. CHEN Shu-zhao.Study on optimization and application of semi-continuous process system of other moving crushing station in large open pit coal mine[J].Journal of Coal Mine,2012,37(3):533-534. [2]李润军,单仁亮,李润圣,等.盾构机主驱动密封维修改造关键技术[J].西安科技大学学报,2014,34(5):579-584. LI Run-jun,SHAN Ren-liang,LI Run-sheng,et al.Key technologies of shield machine main drive seal repair and transformation[J].Journal of Xi'an University of Science and Technology,2014,34(5):579-584. [3]刘 瑜,杜长龙,付 林,等.煤块冲击破碎速度研究[J].振动与冲击,2011,30(3):18-21. LIU Yu,DU Chang-long,FU Lin,et al.Study on the impact crushing speed of coal blocks[J].Study on the impact crushing speed of coal blocks[J].Vibration and impact,2011,30(3):18-21. [4]李守巨,李 德,于 申.压头作用下岩石破碎过程的细观模拟[J].西安科技大学学报,2016,36(6):769-774. LI Shou-ju,LI De,YU Shen.Microscopic simulation of rock fragmentation process under pressure head[J].Journal of Xi'an University of Science and Technology,2016,36(6):769-774. [5]孙学阳,安孝会,苗霖田,等.煤矿井工开采对上覆反向滑坡扰动的模拟研究[J].西安科技大学学报,2017,37(1):71-77. SUN Xue-yang,AN Xiao-hui,MIAO Li-tian,et al.A simulation study on the disturbance of overlying reverse landslide caused by coal mining[J].Journal of Xi'an University of Science and Technology,2017,37(1):71-77. [6]梁艳坤,隋旺华,朱 涛,等.哈拉沟煤矿垮落带破碎岩体溃砂的离散元数值模拟研究[J].煤炭学报,2017,42(2):470-476. LIANG Yan-kun,SUI Wang-hua,ZHU Tao,et al.Discrete element numerical simulation of sand burst in fractured rock mass of collapse zone in Haragou Coal Mine[J].Journal of Coal Mine,2017,42(2):470-476. [7]李 睿,任 成,杨星团,等.基于单元体理论的球床堆积结构与传热算法研究[J].核动力工程,2016,37(3):39-42. LI Rui,REN Cheng,YANG Xing-tuan,et al.An analysis of structures and heat transfer for packed beds[J].Nuclear Power Engineering,2016,37(3):39-42. [8]彭 飞,李腾飞,康宏彬,等.小型制粒机喂料器参数优化与试验[J].农业机械学报,2016,47(2):51-58. PENG Fei,LI Teng-fei,KANG Hong-bin,et al.Parameter optimization and test of feeder for small granulator[J].Journal of Agricultural Machinery,2016,47(2):51-58. [9]邢志中,李贵荣,张海东,等.基于EDEM的小型立式粉碎机数值模拟与优化研究[J].食品工业,2017(1):206-209. XING Zhi-zhong,LI Gui-rong,ZHANG Hai-dong,et al.Study on numerical simulation and optimization of small vertical mill based on EDEM[J].Food Industry,2017(1):206-209. [10]毛 君,刘歆妍,陈洪月,等.基于EDEM的采煤机滚筒工作性能的仿真研究[J].煤炭学报,2017,42(4):1069-1077. MAO Jun,LIU Xin-yan,CHEN Hong-yue,et al.Simulation study on working performance of shearer drum based on EDEM[J].Journal of Coal Science,2017,42(4):1069-1077. [11]Ouyang Y,Feng G,Read J J,et al.Estimating the ratio of pond size to irrigated soybean land in Mississippi:a case study[J].Water Science and Technology:Water Supply,2016,16(6):1639-1647. [12]Thakur S C,Morrissey J P,Sun J,et al.Micromechanical analysis of cohesive granular materials using the discrete element method with an adhesive elasto-plastic contact model[J].Granular Matter,2014,16(3):383-400. [13]Woo S M,Uyeh D D,Sagong M S,et al.Development of seeder for mixed planting of corn and soybeans[J].International Journal of Agricultural and Biological Engineering,2017,10(3):95-101. [14]陈海涛,李桐辉,王洪飞,等.气吸滚筒式垄上三行大豆密植排种器设计与参数优化[J].农业工程学报,2018,34(17):16-24. CHEN Hai-tao,LI Tong-hui,WANG Hong-fei,et al.Design and parameter optimization of three rows of soybean seed metering device on air-suction drum ridge[J].Journal of Agricultural Engineering,2018,34(17):16-24. [15]常 杰,王 菊,刘 勇,等.低共熔离子液体催化大豆油环氧化制备增塑剂[J].华南理工大学学报(自然科学版),2018,46(2):93-101. CHANG Jie,WANG Ju,LIU Yong,et al.Preparation of plasticizers by epoxidation of soybean oil catalyzed by low eutectic ionic liquids[J].Journal of South China University of Technology(Natural Science Edition),2018,46(2):93-101. [16]Constantine D A,Wang Y,Terrell E J.Effect of reciprocation frequency on friction and wear of vibrating contacts lubricated with soybean-based B100 biodiesel[J].Tribology Letters,2013,50(2):279-285. [17]Lisjak A,Liu Q,Zhao Q,et al.Numerical simulation of acoustic emission in brittle rocks by two-dimensional finite-discrete element analysis[J].Geophysical Journal International,2013,195(1):423-443. [18]Mukhopadhyay G,Palit P,Bhattacharyya S.Development of AISI A2 tool steel beater head for an impact crusher in a sinter plant[J].Metallography,Microstructure,and Analysis,2015,4(2):114-121. [19]王德福,王 沫,李利桥.锤片式粉碎机粉碎玉米秸秆机理分析与参数优化[J].农业机械学报,2017,48(11):165-171. WANG De-fu,WANG Mo,LI Li-qiao.Mechanism analysis and parameter optimization of corn straw crushing by hammer mill[J].Journal of Agricultural Machinery,2017,48(11):165-171. [20]金 磊,曾亚武,叶 阳,等.不规则颗粒及其集合体三维离散元建模方法的改进[J].岩土工程学报,2017,39(7):1273-1281. JIN Lei,ZENG Ya-wu,YE Yang,et al.Improvement of 3D discrete element modeling method for irregular particles and their aggregates[J].Journal of Geotechnical Engineering,2017,39(7):1273-1281. [21]王 扬,吕凤妍,徐天月,等.大豆籽粒形状和尺寸分析及其建模[J].吉林大学学报(工学版),2018,48(2):507-517. WANG Yang,LV Feng-yan,XU Tian-yue,et al.Shape and size analysis and modeling of soybean seeds[J].Journal of Jilin University(Engineering Edition),2018,48(2):507-517. [22]孙逸飞,宋顺翔,高玉峰.级配散粒体循环荷载下变形特性的离散元模拟[J].中国矿业大学学报,2018,47(4):874-878. SUN Yi-fei,SONG Shun-xiang,GAO Yu-feng.DEM simulation of deformation characteristics of graded granular materials under cyclic loading[J].Journal of China University of Mining and Technology,2018,47(4):874-878. [23]Celigueta M A,Latorre S,Arrufat F,et al.Accurate modelling of the elastic behavior of a continuum with the Discrete Element Method[J].Computational Mechanics,2017,60(6):1-14. [24]Lee S H,Choi M,Kim T T,et al.Switching terahertz waves with gate-controlled active graphene metamaterials[J].Nature Materials,2012,11(11):936-941. [25]龙 雪,刘社文,季顺迎.水位变化对正倒锥体冰载荷影响的离散元分析[J].力学学报,2019,51(1):74-84. LONG Xue,LIU She-wen,JI Shun-ying.Discrete element analysis of the impact of water level change on ice load of forward and inverted cones[J].Journal of Mechanics,2019,51(1):74-84.

备注/Memo

备注/Memo:
收稿日期:2019-04-18 责任编辑:高 佳
基金项目:国家重点研发计划子课题(2017YFC0804310)
通信作者:郭 卫(1955-),男,陕西黄陵人,教授,博士生导师,E-mail:guow@xust.edu.cn
更新日期/Last Update: 2019-12-20