Optimization and Experiment of Fertilizer Particle Motion Model in Conical Spreading Disk

Lü Jinqing, SUN He, DUI Han, LI Zihui, LI Jicheng, YU Jiayu

Abstract

At present, there are few theoretical and analytical models of tapered fertilization disc in China, which cannot reach the ideal width, and the uniformity of throwing fertilization is poor. A model of the movement of fertilizer particles on a conical fertilizing disk and in air was established. Considering the influence of rotation of fertilizer particles in the whole movement process, the absolute velocity of fertilizer granules moving to the edge of the vane was analyzed, and the three-dimensional coordinate system which was thrown into the air from the edge of the vane was established. The law of movement of fertilizer particles to the air was analyzed. The main factors influencing the movement of fertilizer particles were obtained, and then the main influential factors that affected the throwing distance and throwing uniformity were obtained. These influencing factors involved the movement parameters and structural parameters, including vane length, vane inclination and disc speed. After determining these influencing factors, coefficient of variation was elected as test index, a static bench experiment was carried out by the orthogonal experiment plan, which was conducted in the Engineering College of Northeast Agricultural University in early October 2017. Static experiment referred to International Organization for Standardization (ISO) 5690 and American Society of Agricultural Engineers (ASAE) S341.2. Static test used two-dimensional collection matrix method. The collection matrix area consisted of 253 boxes, each collecting box had external dimensions of 20cm×20cm×10cm and its thickness was 4mm. The experimental results were obtained in data processing, the results showed that the influencing factors were all significant. When the length of the blade was 145mm, the inclination angle of the vane was 0°and the rotating speed of the disc was 1200r/min, the horizontal coefficient of variation of throwing was 5.80%, which met the requirements of throwing fertilizers. The research can improve the fertilization efficiency of potato and provide a theoretical reference for the design and optimization of potato manure spreader.

Keywords: cone disc, fertilizer particles, throwing fertilizer, motion model

Download Full Text:

PDF


References


LIU Runmei, FAN Maopan, FU Yunzhang, et al. Relationship between fertilization rate and fertilizer partial factor productivity in potato production in Yunnan province[J]. Acta Pedologica Sinica, 2014, 51(4) ; 753 -760. (in Chinese)

LIU Fei, ZHUGE Yuping, CHEN Zengming, et al. Effects of con trolled-release fertilizer on potato yield, nitrogen use efficiency and economic benefit[J]. Chinese Agricultural Science Bulletin, 2011 , 27( 12) ; 215 -219. (in Chinese)

FU Yuchao, YUAN Wensheng, ZHANG Wenyi, et al. Present situation and problem analysis of the technology of fertilizer mechanization in China[J]. Journal of Agricultural Mechanization Research, 2017,39( 1 ) ; 251 -255. (in Chinese)

WANG Yuansheng. Study on technology information of domestic fertilizer distributor based on patent analysis [ J ]. Agricultural Equipment & Vehicle Engineering, 2015, 53(11) :18 — 22. (in Chinese)

LIU Cailing, LI Yanni, SONG Jiannong, et al. Performance analysis and experiment on fertilizer spreader with centrifugal swing disk based on EDEM[J]. Transactions of the CSAE, 2017, 33( 14) :32 -39. (in Chinese)

LU Xinchun, CHEN Shufa, YANG Jin, et al. Design and experiment on double-disc spreader with wide breadth and highly efficiency [ J ]. Journal of Agricultural Mechanization Research, 2015, 37(8): 100 - 103. (in Chinese)

WANG Fei. Development stiuation about spreader at abroad [ J ]. Agricultural Engineering, 2016, 6 (2): 31 - 34,42. (in Chinese)

GRIFT T E, KWEON G, HOFSTEE J W , et al. Dynamic friction coefficient measurement of granular fertiliser particles [ J] . Biosystems Engineering, 2006, 95(4) ; 507 -515.

VILLETTE S, COINTAULT F, PIRON E. Centrifugal spreading: an analytical model for the motion of fertiliser particles on a spinning disc[ J] - Biosystems Engineering, 2005, 92(2) : 157 - 164.

ZHANG Rui, W ANG Xiu, ZHAO Chunjiang, et al. Design and experiment of variable rate fertilizer spreader with conveyor chain J]. Transactions of the CSAE, 2012 , 28 (6) ; 20 - 25. (in Chinese)

DONG Xiangqian, SONG Jiannong, ZHANG Junkui, et al. Working performance and experiment on granular fertilizer spreader with cone disk [ J ] - Transactions of the CSAE, 2013, 29( 19) ; 33 -40. (in Chinese)

huP: // www. j-csam. org/jcsam/ch/reader/view_abstract. aspx? file_no = 20160511 & flag = 1. DOl: 10. 6041/j. issn. 1000-1298. 2016. 05.011. HU Yongguang, YANG Yecheng, XIAO Hongru, et al. Simulation and parameter optimization of centrifugal fertilizer spreader for tea plants[ J/OL]. Transactions of the Chinese Society for Agricultural Machinery, 2016, 47 (5 ) ; 77 -82. (in Chinese)

ZHANG Rui, WANG Xiu, MENG Zhijun, et al. Motion analysis of granular fertilizer spreading in fertilizer spreader[ J ]. Journal of Agricultural Mechanization Research, 2012,34(4) :54 -57. (in Chinese)

LL Jinqing, SHANG Qinqin, YANG Ying, et al. Performance analysis and experiment on granular fertilizer spreader with swing disk[ J] - Transactions of the CSAE, 2016, 32(11): 16 -24. (in Chinese)

WANG Anxiang, ZHANG Xiaojun, ZHAI Xuejun, et al. Research on a remote projectile considering the air resistance and the earth rotation [ J ]. Mechanics in Engineering, 2012, 34(4) ; 49 -56. (in Chinese)

YU Li, YANG Zhizong, HE Yan, et al. Study of maximum range and optimum projection angle of projectile with air resistance [J]. Journal of Air Force Radar Academy, 2010, 24(6) ; 452 -453. (in Chinese)

19COOL S, PIETERS J, MERTENS К С, et al. A simulation of the influence of spinning on the ballistic flight of spherical fertilizer grains[J]. Computers and Electronics in Agriculture, 2014, 105: 121 - 131.

WANG Haoyu. Research and test on horizontal disc manure spreader part[ D]. Changchun: Jilin University, 2009. (in Chinese)

JONES J R, HAYDEN L G, YULE I J. A statistical comparison of international fertiliser spreader test methods-confidence in bout width calculations[ J J. Powder Technology, 2008, 184(3) ; 337 -351.

ISO 5690-2 — 1984 Equipment for distributing fertilizers—test methods—part2; Fertilizer distributors in lines[S]. 1984.

ASAE S341.2 Procedure for measuring distribution uniform and calibrating granular broadcast spreaders[ S]. 1997.

FULTON J P, SHEARER S A, CHABRA G. Performance assessment and model development of a variable-rate, spinner-disc fertilizer annlieatorf Tl. Transactions of ASAE. 2001 . 44 (5 ^ • 1071 — 1081.


Refbacks

  • There are currently no refbacks.