基于多孔装置的颗粒挤压试验研究

摘要/Abstract

摘要： 对粉体挤压制粒过程的模拟条件进行讨论，分析单孔挤压装置的不足，设计了一套多孔挤压试验装置用于模拟环模制粒过程。通过分析挤压力曲线变化规律，对制粒成形机理做出了合理解释。试验研究了长径比L、含水率W和模具温度θ对挤压力F的影响规律，建立了相应的数学模型，通过生产对比试验验证了多孔挤压试验装置的有效性。

关键词: 多孔装置, 制粒, 挤压力, 试验

Abstract: According to analyses of pelleting processes of rotated roll forming, demands of simulation devices were discussed, and the shortcomings of single pellet unit were analyzed. Ａ multi-hole device was designed to simulate granular extrusion processes, and a series of experiments were carried out. Change rules of compressing forces F were analyzed, and forming mechanism of granular extrusion was discussed. Mathematical models for the relationship among compressing forces F and some basic parameters such as length-diameter ratios L, moisture contents W and temperatures θ were established. Production tests were designed to verify the proposed model. A multi-hole device was proved to be practical in comparison with the results of production tests.

Key words: multi-hole device, granulation, compressing force, experiment

中图分类号:

S816.32
TH6

蒋清海, 武凯, 孙宇, 杨栋. 基于多孔装置的颗粒挤压试验研究[J]. 中国机械工程.

JIANG Qinghai, WU Kai, SUN Yu, YANG Dong. Granular Extrusion Experimental Researches Based on Multi-hole Devices[J]. China Mechanical Engineering.

参考文献

[1]STELTE W, CLEMONS C, HOLM J K, et al. Fuel Pellets from Wheat Straw:the Effect of Lignin Glass Transition and Surface Waxes on Pelletizing Properties[J]. Bio Energy Research, 2012,5(2):450-458.
[2]LE P K, AVONTUUR P, HOUNSLOW M J, et al. A Microscopic Study of Granulation Mechanisms and Their Effect on Granule Properties[J]. Powder Technology, 2011, 206(1):18-24.
[3]武凯，孙宇，彭斌彬，等.环模制粒粉体旋转挤压成形扭矩模型构建及试验[J]. 农业工程学报，2013，29(24) :33-39.
WU Kai, SUN Yu, PENG Binbin, et al. Modeling and Experiment on Rotary Extrusion Torque in Ring-die Pelleting Process[J]. Transactions of the CASE, 2013, 29(24):33-39.
[4]HOLM J K, STELTE W, POSSELT D, et al. Optimization of a Multiparameter Model for Biomass Pelletization to Investigate Temperature Dependence and to Facilitate Fast Testing of Pelletization Behavior[J]. Energy & Fuels, 2011, 25(8):3706-3711.
[5]夏先飞，孙宇，武凯，等.秸秆压块机组合环模的磨损机理[J]. 农业工程学报，2014，30（4）：32-39.
XIA Xianfei, SUN Yu, WU Kai, et al. Wear Mechanism of Ring Die for Straw Briquetting Machine[J]. Transactions of the CASE, 2014, 30(4):32-39.
[6]蒋清海，武凯，孙宇，等.生物质制粒机环模的磨损机理分析[J]. 农业工程学报，2013，29（22）：42-49.
JIANG Qinghai, WU Kai, SUN Yu, et al. Wear Mechanism Analysis of Ring Die of Pellet Mill[J]. Transactions of the CASE, 2013, 29(22):42-49.
[7]SERRANO C, MONEDERO E, LAPUERTA M, et al. Effect of Moisture Content, Particle Size and Pine Addition on Quality Parameters of Barley Straw Pellets[J]. Fuel Processing Technology, 2011, 92(3):699-706.
[8]吴劲锋，黄建龙，张维果，等.苜蓿草粉制粒密度与挤出力模拟试验[J]. 农业机械学报，2007，38(1)：68-71.
WU Jinfeng, HUANG Jianlong, ZHANG Weiguo, et al. Simulated Experiment and Model of Pelletizing Density and Extruding Force for Alfalfa Powder[J].Transactions of the Chinese Society for Agricultural Machinery, 2007, 38(1):68-71.
[9]周晓杰，王春光.压缩条件对苜蓿草径向受力的影响[J]. 农业机械学报, 2009，40（2）：115-118.
ZHOU Xiaojie, WANG Chunguang. Effect of Compressing Conditions on Radial Force of Alfalfa[J]. Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(2):115-118.
[10]ADAPA P K, SCHOENAU G J, TABIL L G, et al. Prediction of Hardness and Durability of Alfalfa Cubes Processed from Fractionated Sun-cured and Dehydrated Alfalfa Chops[J]. Biosystems Engineering, 2007, 98(4):430-436.
[11]MISLJENOVIC N, OLOVIC C R, VUKMIROVIC D, et al. The Effects of Sugar Beet Molasses on Wheat Straw Pelleting and Pellet Quality. A Comparative Study of Pelleting by Using a Single Pellet Press and a Pilot-scale Pellet Press[J]. Fuel Processing Technology, 2016, 144:220-229.
[12]THEERARATTANANOON K, XU F, WILSON J, et al. Physical Properties of Pellets Made from Sorghum Stalk, Corn Stover, Wheat Straw, and Big Bluestem[J]. Industrial Crops and Products, 2011, 33(2):325-332.

[1]	孙冬野, 胡丰宾, 秦大同, 刘振军. 湿式多片制动器热应力分布规律试验分析 [J]. J4, 201016, 21(16): 2006-2010.
[2]	赵丽娟, 王雅东, 王斌. 含夹矸煤层条件下采煤机螺旋滚筒工作性能分析与预测[J]. 中国机械工程, 2021, 32(08): 976-986.
[3]	夏光, 李嘉诚, 唐希雯, 张洋, 陈无畏. 平衡重式叉车防侧翻模型预测控制研究[J]. 中国机械工程, 2021, 32(08): 987-996.
[4]	孟令存1，2;闫明1;杜志鹏2;张磊2. 光电倍增管殉爆防护装置设计与试验分析[J]. 中国机械工程, 2021, 32(05): 624-629.
[5]	陈宽裕, 阳光武, 肖守讷, 王举金. [车辆工程与测控]基于损伤关联编辑法的地铁支架安装座寿命研究[J]. 中国机械工程, 2021, 32(04): 460-466.
[6]	龙江启1;林坚1;陈先兵2;王子宁2. 通风制动盘结构参数对制动抖动的敏感性[J]. 中国机械工程, 2020, 31(24): 2966-2971.
[7]	赵保林1,2;李博1,2;夏蕊1,2;王学文1,2;王赟3. 刮板输送机中板仿生耐磨优化试验研究[J]. 中国机械工程, 2020, 31(24): 3006-3015.
[8]	包道日娜；刘旭江；王小雪；王帅龙；刘嘉文. 小型水平轴可变偏心距风力机输出特性分析[J]. 中国机械工程, 2020, 31(18): 2196-2205.
[9]	庄星瀚；李德胜；叶乐志；郭文光；高志伟. 直叶片构造液力缓速器的设计与制动性能分析[J]. 中国机械工程, 2020, 31(18): 2212-2219.
[10]	姚海峰1；刘伟2；郑晓雯1；张兰胜2；刘福新2；吴淼1. 构型改进型凿岩机器人钻孔定位方法研究[J]. 中国机械工程, 2020, 31(18): 2254-2261，2267.
[11]	欧阳志高, 李坚, 吴立强, 艾兴, 章的. 薄壁机匣结构复杂冲击载荷与等效试验方法研究[J]. 中国机械工程, 2020, 31(14): 1754-1761.
[12]	罗威1;曾洪阳1;周云山1,2;胡哓岚1;张飞铁1;魏东1. 无级变速器节能型减压回路低温下压力线性度优化[J]. 中国机械工程, 2020, 31(10): 1197-1202,1212.
[13]	高建平;孙家辉;徐振海;郗建国. 基于行驶工况的插电式混合动力公交车控制参数自动化标定方法[J]. 中国机械工程, 2020, 31(06): 631-637.
[14]	刘厚根;范彩明. ZNR2.4罗茨式机械增压器振动特性试验研究[J]. 中国机械工程, 2020, 31(05): 561-566.
[15]	陈尤旭1,2;王德山1;张伟1,2;金国庆1,2. 面向软体机器人的3D打印硅胶软材料实验研究[J]. 中国机械工程, 2020, 31(05): 603-609,629.