Abstract
For the problem that the actual flow detection value of the screw feeder differs greatly from the calculation value of the traditional calculation formula, an RSM eperimental design is used to modify the flow calculation formula of the screw feeder. Considering the complexity of the actual test, the ratio of the flow value measured by the discrete element simulation and the value calculated by the calculation formula is used as the response, and the RSM experimental design is designed by taking the screw pitch, speed, and pipe diameter that significantly affect the flow difference as the factors. The second-order regression equation between the factors and the response value, from which the flow calculation formula of the screw feeder is further obtained. In order to verify the feasibility of the flow calculation formula, the SolidWorks software was used to establish a three-dimensional model according to the design requirements, and the EDEM software was imported for discrete element simulation. The flow value obtained from the simulation was found to be 1.258 t/h. The error of the calculated flow value of 1.210 t/h with the correction formula is 3.97%, indicating the rationality of the flow correction calculation formula and providing a reference for the design calculation of the screw feeder.
Publication Date
7-28-2020
First Page
117
Last Page
121
DOI
10.13652/j.issn.1003-5788.2020.07.024
Recommended Citation
Yuan, LIN; Chang-bin, XU; Xiang-ming, ZHOU; and Shuai-peng, CHENG
(2020)
"Research on modification of flow calculation of screw feeder,"
Food and Machinery: Vol. 36:
Iss.
7, Article 24.
DOI: 10.13652/j.issn.1003-5788.2020.07.024
Available at:
https://www.ifoodmm.cn/journal/vol36/iss7/24
References
[1] 梅潇,柯周军,王伟,等.垂直螺旋输送机生产率计算模型的修正[J].中国粉体技术,2018,24(4):37-43.
[2] 赵方超,王春光,乌兰图雅.螺旋式输送装置参数优化研究[J].中国农业科技导报,2019,21(6):70-78.
[3] 梅潇,郑颖,刘海洋,等.垂直螺旋输送机中颗粒群的运动特性分析[J].机械设计与制造,2017(7):26-29.
[4] 郭创,朴香兰.基于EDEM的螺旋输送机数值模拟分析[J].延边大学学报(自然科学版),2018,44(2):179-182.
[5] 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.
[6] 李勇,刘伟冬.基于EDEM软件的单螺杆离散元模拟仿真与分析[J].起重运输机械,2017(4):78-81.
[7] 陈源,彭旭东,李纪云,等.螺旋槽结构参数对干气密封动态特性的影响研究[J].摩擦学学报,2016,36(4):397-405.
[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.
[9] 李飞翔,李永祥,徐雪萌,等.变螺距螺旋结构的螺距设计与仿真分析[J].包装工程,2019,40(13):214-221.
[10] BALASUBRAMANIAN S,VISWANATHAN R.Influence of moisture content on physical properties of minor millets[J].Journal of Food Science and Technology,2010,47(3):279-284.
[11] SINGH K P,MISHRA H N,SAJA S.Moisture-dependent properties of barnyard millet grain and kernel[J].Journal of Food Engineering,2010,96(4):598-606.
[12] PEZO M,PEZO L,JOVANOVIC A,et al.Discrete element model of particle transport and premixing action in modified screw conveyors[J].Powder Technology,2018,336:255-264.
[13] MOYSEY P A,THOMPSON M R.Modelling the solids inflow and solids conveying of single-screw extruders using the discrete element method[J].Powder Technology,2005,153(2):95-107.
[14] WANG Shu-yan,LI Hao-long,TIAN Rui-chao,et al.Numerical simulation of particle flow behavior in a screw conveyor using the discrete element method[J].Particuology,2019,43:137-148.