[1]张泽宇,母绍平,惠记庄*,等.多介质路面材料连续搅拌均匀性离散元模拟与工艺参数优化[J].长安大学学报(自然科学版),2026,46(01):199-210.[doi:10.19721/j.cnki.1671-8879.2026.01.015]
　ZHANG Ze-yu,MU Shao-ping,HUI Ji-zhuang*,et al.Discrete element simulation and process parameter optimization for continuous mixing uniformity of multi-component pavement materials[J].Journal of Chang’an University (Natural Science Edition),2026,46(01):199-210.[doi:10.19721/j.cnki.1671-8879.2026.01.015]
点击复制

多介质路面材料连续搅拌均匀性离散元模拟与工艺参数优化()
分享到：

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第46卷
期数:
2026年01期
页码:
199-210
栏目:
汽车与机械工程
出版日期:
2026-01-31

文章信息/Info

Title:
Discrete element simulation and process parameter optimization for continuous mixing uniformity of multi-component pavement materials
文章编号:
1671-8879(2026)01-0199-12
作者:
张泽宇1; 2; 3; 母绍平1; 惠记庄1*; 任余1; 刘勇1; 4
(1. 长安大学 高速公路筑养装备与技术教育部工程研究中心,陕西 西安 710064; 2. 长安大学 道路施工技术与装备教育部重点实验室,陕西 西安 710064; 3. 西藏天路股份有限公司 科研中心,西藏 拉萨 850000; 4. 中航电测仪器(西安)有限公司,陕西 西安 710064)
Author(s):
ZHANG Ze-yu1; 2; 3;  MU Shao-ping1;  HUI Ji-zhuang1*;  REN Yu1;  LIU Yong1; 4
(1. Engineering Research Center of Ministry of Education of Construction and Maintenance Equipment and Technology of Expressway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Key Laboratory of Road Construction Technology and Equipment of Ministry of Education, Chang'an University, Xi'an 710064,Shaanxi, China; 3. Research Center, Xizang Tianlu Co., Ltd., Lhasa 850000, Xizang, China; 4. Zhonghang Electronic Measuring Instruments(Xi'an)Co., Ltd., Xi'an 710064, Shaanxi, China)
关键词:
搅拌设备;  多介质路面材料;  搅拌均匀性;  相似理论;  离散系数
Keywords:
mixing equipment;  multi-component pavement material;  mixing uniformity;  similarity theory;  dispersion coefficient
分类号:
U415.52
DOI:
10.19721/j.cnki.1671-8879.2026.01.015
文献标志码:
A
摘要:
为研究连续搅拌设备内的颗粒运动特性和作业参数对多介质路面材料搅拌均匀性的影响,以半柔性路面材料为例,在相似理论的基础上建立了连续搅拌设备模型,采用离散元方法模拟了设备内不同粒径的颗粒分布、运动轨迹及速度特征; 以离散系数为评价指标,分析了搅拌轴转速和颗粒供给量对搅拌出料口颗粒均匀性的影响,确定了最佳组合参数,并通过方差分析(ANOVA)确定了最大显著影响因素。研究结果表明:与Hertz模型相比,Hertz-Mindlin with JKR接触模型的颗粒受黏结力作用,黏聚程度较高,扩散程度较小,更接近混凝土塌落的实际情况; 相同粒径颗粒在连续搅拌设备进料口处聚集性最大,经过搅拌后沿轴线逐渐分布均匀,在出料口混合程度最佳; 混合料在搅拌设备中间区域出现聚集现象,在搅拌叶片的驱动下产生沸腾效应; 进料口和搅拌轴与搅拌设备内壁间的颗粒速度较大,沿搅拌轴中间区域的速度较小; 搅拌工作开始后8 s左右颗粒平均速度在0.09 m/s附近波动,此时搅拌设备内颗粒基本充盈,进入稳定工作状态; 在搅拌叶片的带动下,颗粒间存在一定间隙,可增加颗粒在运动中与其余类型颗粒接触的机会,促使搅拌均匀,且颗粒均匀性从进料口到出料口不断增大; 当颗粒供给量为164 t/h,搅拌轴转速为160 r/min时,搅拌均匀性最佳; 通过双因素方差分析得出,颗粒供给量对搅拌均匀性的影响大于搅拌轴转速。
Abstract:
To investigate the particle motion characteristics and the effects of operational parameters on the mixing uniformity of multi-component pavement materials in continuous mixing equipment, the semi-flexible pavement material was taken as an example, and a model of continuous mixing equipment was established based on similarity theory. The discrete element method(DEM)was used to simulate the distribution, motion trajectories and velocity characteristics of particles with different sizes inside the equipment. The dispersion coefficient was served as the evaluation index. The effects of mixing shaft rotational speed and particle feed rate on the mixing uniformity of particles at the discharge outlet were analyzed. The optimal combination of parameters was determined. The most significant influencing factor was identified through analysis of variance(ANOVA). The research results show that compared with the Hertz model, particles in the Hertz-Mindlin with JKR contact model are subjected to adhesive forces. They exhibit higher cohesion and lower dispersion. This condition is closer to the actual situation of concrete slump. Particles with the same size have the maximum aggregation at the feed inlet of the continuous mixing equipment. After mixing, they gradually distribute uniformly along the axis. The best mixing degree is achieved at the discharge outlet. The mixture shows aggregation in the middle region of the mixing equipment. A boiling effect is generated under the driving action of the mixing blades. Particle velocities are larger at the feed inlet and in the gap between the mixing shaft and the equipment inner wall. The velocity is smaller in the middle region along the mixing shaft. The average particle velocity fluctuates near 0.09 m/s around 8 s after the start of mixing work. At this time, the particles inside the mixing equipment are basically full. The mixing equipment enters a stable working state. Driven by the mixing blades, gaps exist between particles. This can increase the opportunity for particles to contact other types of particles during motion and promote mixing uniformity. The mixing uniformity continuously increases from the feed inlet to the discharge outlet. The best mixing uniformity is achieved when the particle feed rate is 164 t/h and the mixing shaft rotational speed is 160 r/min. The two-factor ANOVA shows that the effect of particle feed rate on the mixing uniformity is greater than that of the mixing shaft rotational speed.11 tabs, 13 figs, 30 refs.

参考文献/References:

[1] 赵利军,申 岩,邓 欣,等.基于EDEM的沥青混合料搅拌机叶片参数匹配[J].郑州大学学报(工学版),2019,40(3):79-84.
ZHAO Li-jun, SHEN Yan, DENG Xin, et al. Parameters matching of mixing blades for asphalt mixture mixer based on EDEM[J]. Journal of Zhengzhou University(Engineering Science), 2019, 40(3): 79-84.
[2]HE Z Y, YANG J Y, ZOU L M, et al. The effect of the double-horizontal-shaft vibrating mixing on the performance of UHPC[J]. International Journal of Materials and Product Technology, 2023, 66(3/4): 379.
[3]申 岩,赵利军,李雅洁,等.基于EDEM的沥青混合料搅拌均匀性分析[J].筑路机械与施工机械化,2019,36(5):86-90.
SHEN Yan, ZHAO Li-jun, LI Ya-jie, et al. Analysis of stirring uniformity of asphalt mixture based on EDEM[J]. Road Machinery and Construction Mechanization, 2019, 36(5): 86-90.
[4]赵 悟,王容芳,田 军,等.基于ADAMS的立式振动搅拌机动平衡激振器结构优化[J].机械设计,2025,42(8):45-51.
ZHAO Wu, WANG Rong-fang, TIAN Jun, et al. Structural optimization of dynamic balanced exciter for vertical vibration mixer based on ADAMS[J]. Journal of Machine Design, 2025, 42(8): 45-51.
[5]熊潮波.水泥稳定碎石搅拌均匀性及其对路用性能影响机理研究[J].公路交通技术,2019,35(4):28-33.
XIONG Chao-bo. Study on mixing uniformity of cement-stabilized macadam and its mechanism of influence on road performance[J]. Technology of Highway and Transport, 2019, 35(4): 28-33.
[6]王进勇,陈 飞,张东长,等.搅拌工艺对水稳碎石均匀性与强度的影响[J].筑路机械与施工机械化,2019,36(10):29-33.
WANG Jin-yong, CHEN Fei, ZHANG Dong-chang, et al. Influence of mixing process on uniformity and strength of cement stabilized macadam[J]. Road Machinery and Construction Mechanization, 2019, 36(10): 29-33.
[7]张文豪,班传文,李松梅.基于离散元法的双组份复合涂料搅拌螺杆参数优化[J].工程设计学报,2022,29(5):547-554.
ZHANG Wen-hao, BAN Chuan-wen, LI Song-mei. Parameter optimization of stirring screw for two-component composite coatings based on discrete element method[J]. Chinese Journal of Engineering Design, 2022, 29(5): 547-554.
[8]张 宏.基于离散元法的双卧轴搅拌机工作性能的分析与研究[J].重庆理工大学学报(自然科学),2019,33(12):68-73,100.
ZHANG Hong. Analysis and research on working performance of double horizontal shaft mixer based on discrete element method[J]. Journal of Chongqing University of Technology(Natural Science), 2019, 33(12): 68-73, 100.
[9]张胜军,芦 强.双卧轴搅拌机搅拌速度对均匀度影响的研究[J].机械研究与应用,2022,35(1):31-34.
ZHANG Sheng-jun, LU Qiang. Study on the effect of mixing speed on uniformity of the double horizontal shaft mixer[J]. Mechanical Research and Application, 2022, 35(1): 31-34.
[10]霍云婷,张 忠,杜晓钟.双行星螺杆式搅拌器的混合性能分析[J].过程工程学报,2025,25(6):556-564.
HUO Yun-ting, ZHANG Zhong, DU Xiao-zhong. Mixing performance analysis of double planetary screw agitator[J]. The Chinese Journal of Process Engineering, 2025, 25(6): 556-564.
[11]MA D C, GUI X, LI X, et al. Simulation analysis of significance and interaction of influencing factors on mixing uniformity of double-drum recycling mixing plant[J]. Journal of Southeast University(English Edition), 2022, 38(2): 158-165.
[12]丁智勇,程旭乐,杨 光,等.颗粒型改性剂对沥青搅拌均匀性影响的研究[J].公路,2019,64(7):261-266.
DING Zhi-yong, CHENG Xu-le, YANG Guang, et al. Investigating the effects of granular modifier on the homogeneity of asphalt mixing[J]. Highway, 2019, 64(7): 261-266.
[13]施进发,高志龙,杨 杰,等.基于EDEM的双卧轴搅拌机混合度研究[J].筑路机械与施工机械化,2020,37(1):126-129.
SHI Jin-fa, GAO Zhi-long, YANG Jie, et al. Research on mixing degree of mixer with double horizontal shafts based on EDEM[J]. Road Machinery and Construction Mechanization, 2020, 37(1): 126-129.
[14]杨超峰,吉万健.基于EDEM的矿山充填用高速搅拌机的仿真分析[J].现代矿业,2019(2):160-162,180.
YANG Chao-feng, JI Wan-jian. Simulation analysis of high-speed mixer for mine filling based on EDEM[J]. Modern Mining, 2019(2): 160-162, 180.
[15]袁 浩,付天昊,操文武,等.基于EDEM的搅拌式粮食烘干筒仓搅拌均匀性研究[J].中国农机化学报,2025,46(7):241-246.
YUAN Hao, FU Tian-hao, CAO Wen-wu, et al. Research on mixing uniformity of stirred grain drying silo based on EDEM[J]. Journal of Chinese Agricultural Mechanization, 2025, 46(7): 241-246.
[16]马登成,刘 康.双滚筒再生搅拌设备搅拌均匀性建模与仿真[J].华中科技大学学报(自然科学版),2020,48(3):7-11,17.
MA Deng-cheng, LIU Kang. Modeling and simulation of mixing uniformity of double drum regenerative mixing equipment[J]. Journal of Huazhong University of Science and Technology(Natural Science Edition), 2020, 48(3): 7-11, 17.
[17]魏明义,汪飞田.双卧轴搅拌机转速对搅拌均匀性影响的仿真研究[J].江苏建筑,2023(2):96-99.
WEI Ming-yi, WANG Fei-tian. Simulation study on the influence of rotating speed of double horizontal shaft mixer on mixing uniformity[J]. Jiangsu Construction, 2023(2): 96-99.
[18]JIANG S Q, YE Y X, HE M X, et al. Mixing uniformity of irregular sand and gravel materials in a rotating drum with determination of contact model parameters[J]. Powder Technology, 2019, 354: 377-391.
[19]丁智勇,程旭乐,石琪慧.小型搅拌器内沥青混合料颗粒搅拌的仿真[J].筑路机械与施工机械化,2019,36(1):101-104,109.
DING Zhi-yong, CHENG Xu-le, SHI Qi-hui. Simulation study on particle mixing of asphalt mixture in small mixer[J]. Road Machinery and Construction Mechanization, 2019, 36(1): 101-104, 109.
[20]郭帅杰,马子雄,宋绪国,等.水泥土搅拌桩搅拌均匀性快速检测试验研究[J].铁道建筑技术,2025(5):18-21.
GUO Shuai-jie, MA Zi-xiong, SONG Xu-guo, et al. Experimental study on rapid detection of mixing uniformity in cement-soil mixing piles[J]. Railway Construction Technology, 2025(5): 18-21.
[21]张 钢,张世柱,张晨光.搅拌工艺对沥青混合料均匀性的影响试验研究[J].建筑机械,2024(9):140-143,148.
ZHANG Gang, ZHANG Shi-zhu, ZHANG Chen-guang. Experimental study on the influence of mixing process on the asphalt mixture uniformity[J]. Construction Machinery, 2024(9): 140-143, 148.
[22]高 旭,雷 杰,狄瞻霞,等.基于EDEM的强力混合机混匀效果数值模拟[J].过程工程学报,2023,23(11):1530-1540.
GAO Xu, LEI Jie, DI Zhan-xia, et al. Numerical simulation of blending effectiveness of forcing mixer based on EDEM[J]. The Chinese Journal of Process Engineering, 2023, 23(11): 1530-1540.
[23]ZHAO L Y, GU H R, YE M, et al. Optimization of the coupling parameters and mixing uniformity of multiple organic hydraulic mixtures based on the discrete element method and response surface methodology[J]. Advanced Powder Technology, 2020, 31(10): 4365-4375.
[24]肖世伟,陈思羽,刘洪义,等.基于EDEM的干燥装置部件仿真试验研究[J].农机化研究,2025,47(6):191-196.
XIAO Shi-wei, CHEN Si-yu, LIU Hong-yi, et al. Simulation experiment of drying device components based on EDEM[J]. Journal of Agricultural Mechanization Research, 2025, 47(6): 191-196.
[25]赵玲瑛,顾海荣,叶 敏,等.差速双滚筒搅拌均匀性建模及多目标参数优化[J].华中科技大学学报(自然科学版),2022,50(2):26-31.
ZHAO Ling-ying, GU Hai-rong, YE Min, et al. Parameter optimization modeling of mixing uniformity of double barrel with differential velocity and multi-objective parameter optimization[J]. Journal of Huazhong University of Science and Technology(Natural Science Edition), 2022, 50(2): 26-31.
[26]XIAO X W, ZHAN J, JIANG S Q, et al. The analysis of mixing performance of sand and gravel in a rotating drum by DEM[J]. Computational Particle Mechanics, 2024, 11(3): 1357-1373.
[27]XIAO X W, LI Y Y, PENG R T, et al. Parameter calibration and mixing uniformity of irregular gravel materials in a rotating drum[J]. Powder Technology, 2023, 414: 118074.
[28]刘家庆,谭茜文,何延全,等.赤泥基胶凝材料半柔性路面应用[J].长安大学学报(自然科学版),2022,42(5):21-32.
LIU Jia-qing, TAN Qian-wen, HE Yan-quan, et al. Application of semi-flexible pavements(SFP)with red mud-based cementitious materials[J]. Journal of Chang'an University(Natural Science Edition), 2022, 42(5): 21-32.
[29]熊子佳,龚明辉,邓 成,等.不同养护条件对半柔性路面材料性能的影响[J].公路交通科技,2023,40(9):37-44.
XIONG Zi-jia, GONG Ming-hui, DENG Cheng, et al. Influence of different maintenance conditions on performance of semi-flexible pavement materials[J]. Journal of Highway and Transportation Research and Development, 2023, 40(9): 37-44.
[30]郇晓龙,冯猛超,武传宇,等.基于EDEM的茶园土壤-有机肥混料离散元模型构建与试验[J].农业机械学报,2025,56(12):267-278.
HUAN Xiao-long, FENG Meng-chao, WU Chuan-yu, et al. Construction and experiment of discrete element model for tea garden soil-organic fertilizer mixture based on EDEM[J]. Transactions of the Chinese Society for Agricultural Machinery, 2025, 56(12): 267-278.

相似文献/References:

[1]林涛,杨照辉.搅拌设备控制系统的输入信号预处理电路设计[J].长安大学学报(自然科学版),2006,26(04):108.
　LIN Tao,YANG Zhao-hui.Input circuits design of stirring equipment computer control system[J].Journal of Chang’an University (Natural Science Edition),2006,26(01):108.
[2]林涛,王志文.沥青混凝土搅拌设备计算机控制系统[J].长安大学学报(自然科学版),2005,25(02):86.
　LIN Tao,WANG Zhi-wen.Computer control system of bituminous concrete stirring equipment[J].Journal of Chang’an University (Natural Science Edition),2005,25(01):86.

备注/Memo

备注/Memo:
收稿日期:2025-07-18
基金项目:国家自然科学基金项目(52278390); 陕西省留学人员科技活动择优资助项目(2024006);
陕西省自然科学基础研究计划项目(2025JC-YBMS-416,2025SYS-SYSZD-104,2023-JC-QN-0381)
作者简介:张泽宇(1990-),男,陕西渭南人,高级工程师,工学博士,从事工程机械作业质量优化控制研究,E-mail:zhangzeyu@chd.edu.cn。
更新日期/Last Update: 2026-02-20