STUDY ON MOTION AND MIXING CHARACTERISTICS OF MATERIAL IN TWIN-SCREW REACTOR BASED ON EDEM

Liu Panhu; Ma Li; Zeng Dewang; Xiao Rui

doi:10.19912/j.0254-0096.tynxb.2021-0147

PDF(2624 KB)

Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (10) : 343-349. DOI: 10.19912/j.0254-0096.tynxb.2021-0147

STUDY ON MOTION AND MIXING CHARACTERISTICS OF MATERIAL IN TWIN-SCREW REACTOR BASED ON EDEM

Liu Panhu, Ma Li, Zeng Dewang, Xiao Rui

Author information +

History +

Abstract

In order to study the motion and mixing characteristics of materials in the twin-screw pyrolysis reactor, EDEM software is used for numerical simulation. The results show that the materials from the outer screw to inner screw transport is achieved by the outer screw to lift the stacked materials, so that the material smoothly enters the inner screw. Under the simulation conditions, the mixing effect at large rotating speed is obviously better than that at small rotating speed. In addition, it is found that the mixing effect of particles is enhanced with the increase of the outer screw rotating speed. In a single pitch of screw, biochar particles which have smaller particle size are more likely to be distributed on the outside of screw blade, and biomass particles which have larger particle size occupy a larger proportion in the first part of the particles group.

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Liu Panhu, Ma Li, Zeng Dewang, Xiao Rui. STUDY ON MOTION AND MIXING CHARACTERISTICS OF MATERIAL IN TWIN-SCREW REACTOR BASED ON EDEM[J]. Acta Energiae Solaris Sinica. 2022, 43(10): 343-349 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0147

References

[1] KAN T, STREZOV V, EVANS T J.Lignocellulosic biomass pyrolysis: a review of product properties and effects of pyrolysis parameters[J]. Renewable & sustainable energy reviews, 2016, 57(5): 1126-1140.
[2] WANG S, DAI G, YANG H, et al.Lignocellulosic biomass pyrolysis mechanism: a state-of-the-art review[J]. Progress in energy and combustion science, 2017, 62: 33-86.
[3] 王黎明, 王述洋. 国内外生物质热解液化装置的研发进展[J]. 太阳能学报, 2006, 27(11): 1180-1184.
WANG L M, WANG S Y.The progress on research and exploitage of pyrolysis equipments of biomass in domestic and abroad[J]. Acta energiae solaris sinica, 2006, 27(11): 1180-1184.
[4] YANG Y, BRAMMER J G, MAHMOOD A S N, et al. Intermediate pyrolysis of biomass energy pellets for producing sustainable liquid, gaseous and solid fuels[J]. Bioresource technology, 2014, 169: 794-799.
[5] 罗豪. 多模腔并行瓶盖批次压塑成型过程中物料流动特性研究[D]. 广州: 华南理工大学, 2018.
LUO H.Study on materials flow characteristics during the multi-cavity batch compression molding for bottle caps[D]. Guangzhou: South China University of Technology, 2018.
[6] OREFICE L, KHINAST J G.DEM study of granular transport in partially filled horizontal screw conveyors[J]. Powder technology, 2017, 305: 347-356.
[7] 朱鸿翔, 谭欢. 基于EDEM的螺旋输送机性能研究[J]. 机电工程技术, 2018, 47(7): 27-29, 202.
ZHU H X, TAN H.Research on the performance of spiral conveyer based on EDEM[J]. Mechanical & electrical engineering technology, 2018, 47(7): 27-29, 202.
[8] OWEN P J, CLEARY P W.Prediction of screw conveyor performance using the discrete element method(DEM)[J]. Powder technology, 2009, 193(3): 274-288.
[9] 张强, 张晓宇, 吴泽光, 等. 基于EDEM的边帮采煤机螺旋输送性能研究[J]. 煤炭科学技术, 2020, 48(2): 151-157.
ZHANG Q, ZHANG X Y, WU Z G, et al.Study on spiral conveying performance of side shearer based on EDEM[J]. Coal science and technology, 2020, 48(2): 151-157.
[10] 周龙海. 垂直螺旋输送的EDEM仿真与实验研[D]. 杭州: 浙江工业大学, 2017.
ZHOU L H.EDEM simulation and experiment of vertical screw conveying[D]. Hangzhou: Zhejiang University of Technology, 2017.
[11] 邓荣根. 基于离散元超细混合及粉碎的仿真[D]. 上海:华东理工大学, 2013.
DENG R G.Simulation of ultrafine mixture and disintegration based on discrete element method[D]. Shanghai: East China University of Science and Technology, 2013.
[12] 李为宁, 宋扬扬, 李兵. 基于EDEM的双锅曲毫机仿真试验[J]. 食品与机械, 2019, 35(6): 90-95.
LI W N, SONG Y Y, LI B.Simulation test of double-pan roasting machine based on EDEM[J]. Food & machinery, 2019, 35(6): 90-95.
[13] 刘彬彬. 基于颗粒碰撞阻尼的导管减振器研究[D].南京: 南京航空航天大学, 2018.
LIU B B.Study on pipe damper based on particle impact damping[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2018.
[14] 周春健. 基于离散元法磁吸滚筒式排种器种群运动规律研究 [D]. 镇江: 江苏大学, 2013.
ZHOU C J.Analysis of seed group motion on magnetic cylinder seeder based on DEM[D]. Zhenjiang: Jiangsu University, 2013.
[15] 贺鑫. 多维刨花摆动筛的设计与研究[D]. 淮南: 安徽理工大学, 2018.
HE X.Design and study of multidimensional shavings swinging screen[D]. Huainan: Anhui University of Science and Technology, 2018.
[16] 邵秀平. 基于离散元法的磁吸式精密排种器充种颗粒运动仿真及试验研究[D]. 镇江: 江苏大学, 2011.
SHAO X P.Particle kinematic simulation and experimental study on the process of magnetic precision seed-meter sucking seeds based on DEM[D]. Zhenjiang: Jiangsu University, 2011.
[17] 胡建强. 散体颗粒物质输送过程力学分析与研究[D]. 沈阳: 沈阳建筑大学, 2017.
HU J Q.Mechanical analysis and research on the transport process of granular materials[D]. Shenyang: Shenyang Jianzhu University, 2017.
[18] 邹一岚, 文东辉, 王扬渝, 等. 超声振动光整的EDEM数值模拟与实验研究[J]. 中国机械工程, 2020, 31(6): 647-654, 661.
ZOU Y L, WEN D H, WANG Y Y, et al.Experimental study and EDEM numerical simulation of ultrasonic vibration finishing[J]. China mechanical engineering, 2020, 31(6): 647-654, 661.
[19] 张忠良. 水冷螺旋输送机内颗粒流动与传热特性研究 [D]. 淄博: 山东理工大学, 2016.
ZHANG Z L.Study on the flow and heat transfer characteristics of particles in the water-cooled screw conveyor[D]. Zibo: Shandong University of Technology, 2016.