Review of grain threshing theory and technology

Jun Fu, Zhi Chen, Lujia Han, Luquan Ren

Abstract


Threshing is the most important function of grain harvester. Grain loss and damage in harvesting are significantly related to threshing theory and technology. There are four kinds of threshing principles including impact, rubbing, combing and grinding. Four types of contact models between grain and threshing components have been constructed correspondently. Grain damage can be regarded as a function of peripheral velocity and contact pattern of impacting. Grain loss can be regarded as a function of contact pattern of rasp bars. Grain loss coming from cleaning and separation in the subsequent process of combing threshing was significantly decreased. Tangential and axial threshing technologies have been applied in grain threshing system widely. It showed that in the combined application, tangential rolls are used to accelerate grain flow, and axial rolls are used to increase threshing quality especially lower loss and damage. Conical concave may take the place of the traditional cylindrical one. With the development of sensor technology and communication technology, intelligent harvesting robot and automatic threshing system will be integrated together to improve grain quality and operation comfort.
Keywords: grain, threshing, threshing theory, threshing technology, harvester, grain loss
DOI: 10.25165/j.ijabe.20181103.3432

Citation: Fu J, Chen Z, Han L J, Ren L Q. Review of grain threshing theory and technology. Int J Agric & Biol Eng, 2018; 11(3): 12–20.

Keywords


grain, threshing, threshing theory, threshing technology, harvester, grain loss

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References


Li Z, Liu Z, Anderson W. Chinese rice production area adaptations to climate changes, 1949–2010. Environmental Science and Technology; 2015; 49(4): 2032–2037. (in Chinese)

Callaway E. Domestication: The birth of rice. Nature, 2014; 514(7524): 58–59.

Gobbett D L, Hochman Z, Horan H. Yield gap analysis of rainfed wheat demonstrates local to global relevance. The Journal of Agricultural Science, 2017; 155(2): 282–299.

Wu Q, Xia G M, Chen T T, Chi D C, Jin Y, Sun D H. Impacts of nitrogen and zeolite managements on yield and physicochemical properties of rice grain. Int J Agric & Biol Eng, 2016; 9(5): 93–100.

Cerquitelli T. Predicting large scale fine grain energy consumption. Energy Procedia, 2017; 111: 1079–1088.

Zami M A, Hossain M A, Sayed M A, Biswas B K, Hossain M A. Performance Evaluation of the BRRI Reaper and Chinese Reaper Compared to Manual Harvesting of Rice (Oryza sativa L.). The Agriculturists, 2015; 12(2): 142–150.

Unakıtan G, Aydın B. A comparison of energy use efficiency and economic analysis of wheat and sunflower production in Turkey: A case study in Thrace Region. Energy, 2018; 149: 279–285.

Hanna H M, Quick G R. Grain harvesting machinery. Handbook of Farm, Dairy and Food Machinery Engineering, Academic Press, 2013; pp.223–257.

Alizadeh M R, Bagheri I. Field performance evaluation of different rice threshing methods. International Journal of Natural and Engineering Sciences, 2009; 3(3): 139–143.

Zareiforoush H, Komarizadeh M H, Alizadeh M R. Effects of crop-machine variables on paddy grain damage during handling with an inclined screw auger. Biosystems Engineering, 2010; 106(3): 234–242.

Khir R, Atungulu G, Ding C, Pan Z L. Influences of harvester and weather conditions on field loss and milling quality of rough rice. Int J Agric & Biol Eng, 2017; 10(4): 216–223.

Špokas L, Steponavičius D, Petkevičius S. Impact of technological parameters of threshing apparatus on grain damage. Agronomy Research, 2008; 6: 367–376.

Gbabo A, Gana I M, Amoto M S. Design, fabrication and testing of a millet thresher. Net Journal of Agricultural Science, 2013; 1(4): 100–106.

Singh B, Linvill D E. Determining the effect of pod and grain moisture content on threshing loss and damage of navy beans. Transaction of the ASAE, 1977; 2: 226–231.

Ndirika V I O. A mathematical model for predicting output capacity of selected stationary grain threshers. Agricultural Mechanization in Asia, Africa, and Latin America, 2005; 36(2): 9–13.

Wang G, Jia H L, Tang L, Zhuang J, Jiang X X. Design of variable screw pitch rib snapping roller and residue cutter for corn harvesters. Int J Agric & Biol Eng, 2016; 9(1): 27–34.

Li H C, Li Y Y, Gao F, Zhao Z, Xu L Z. CFD–DEM simulation of material motion in air-and-screen cleaning device. Computers and Electronics in Agriculture.2012; 88: 111–119.

Yang L, Cui T, Qu Z, Zhang D X. Development and application of mechanized maize harvesters. Int J Agric & Biol Eng, 2016; 9(3): 15–28.

Nawrocka A, Stępień E, Grundas S, Nawrot Jan. Mass loss determination of wheat kernels infested by granary weevil from X-ray images. Journal of Stored Products Research, 2012; 48: 19–24.

Karlen D L, Birrell S J, Johnson J M F, Osborne S L, Schumacher T E, Varvel G E. Multilocation corn stover harvest effects on crop yields and nutrient removal. Bio Energy Research, 2014; 7(2): 528–539.

Markowski M, Żuk-Gołaszewska K, Kwiatkowski D. Influence of variety on selected physical and mechanical properties of wheat. Industrial Crops and Products, 2013; 47: 113–117.

Huynh V M, Powell T, Siddall J N. Threshing and separating process-A mathematical model. Transaction of the ASAE.1982; 25(1): 65–73.

Abdi R, Jalali A. Mathematical model for prediction combine harvester header losses. International Journal of Agriculture and Crop Sciences, 2013; 5(5): 549–556.

Pishgar-Komleh S H, Keyhani A, Mostofi-Sarkari M R, Jafari A. Assessment and determination of seed corn combine harvesting losses and energy consumption. Elixir Agriculture, 2013; 54: 12631–12637.

Audilakshmi, Aruna S C, Solunke R B, Kamatar M Y, Kandalkar H G, Gaikwad P. Approaches to grain quality improvement in rainy season sorghum in India. Crop Protection, 2007; 26: 630–641.

Baryeh E A. A simple grain impact damage assessment device for developing countries. Journal of Food Engineering, 2003; 56: 37–42.

Mirzazadeh A, Abdollahpour S, Mahmoudi A, Bukat A R. Intelligent modeling of material separation in combine harvester’s thresher by ANN. International Journal of Agriculture and Crop Sciences, 2012; 4(23): 1767–1777.

Behnke W, Brune M. Method for controlling a crop separating process of a combine harvester: U.S. Patent 8,676,453. 2014-3-18.

Khazaei J, Shahbazi F, Massah J. Evaluation and modeling of physical and physiological damage to wheat seeds under successive impact loadings: mathematical and neural networks modeling. Crop Science, 2008; 48(4): 1532–1544.

Harrison H P. Grain separation and damage of an axial flow combine. Canadian Agricultural Engineering, 1992; 34(1): 49–53.

Lаshgari M, Mobli H, Omid M. Qualitative analysis of wheat grain damage during harvesting with John Deere combine harvester. International Journal of Agriculture and Biology, 2008; 10: 201–204.

Kalkan F, Kara M, Bastaban S, Turgut N. Strength and frictional properties of popcorn kernel as affected by moisture content. International Journal of Food Properties, 2011; 14(6): 1197–1207.

Agelet L E, Ellis D D, Duvick S, Goggi A S, Hurburgh C R, Gardner C A. Feasibility of near infrared spectroscopy for analyzing corn kernel damage and viability of soybean and corn kernels. Journal of Cereal Science, 2012; 55(2): 160–165.

Shahbazi F. A study on the seed susceptibility of wheat (Triticum aestivum L.) cultivars to impact damage. Journal of Agricultural Science and Technology, 2012; 14(3): 505–512.

Zhu M, Shabala S, Shabala L, Fan Y, Zhou M X. Evaluating predictive values of various physiological indices for salinity stress tolerance in wheat. Journal of Agronomy and Crop Science, 2016; 202(2): 115–124.

Delwiche S R, Yang I C, Graybosch R A. Multiple view image analysis of freefalling U.S. wheat grains for damage assessment. Computers and Electronics in Agriculture, 2013; 98: 62–73.

Delwiche S R, Kim M S, Dong Y. Fusarium damage assessment in wheat kernels by Vis/NIR hyperspectral imaging. Sensing and Instrumentation for Food Quality and Safety, 2011; 5(2): 63–71.

Miller J D. Fungi and mycotoxins in grain: implications for stored product research. Journal of Stored Products Research, 1995; 31(1): 1–16.

Singh C B, Jayas D S, Paliwal J, White N D. Fungal damage detection in wheat using short-wave near-infrared hyperspectral and digital colour imaging. International Journal of Food Properties, 2012; 15(1): 11–24.

Herrera J M, Pizzolitto R P, Zunino M P, Dambolena J S, Zygadlo J A. Effect of fungal volatile organic compounds on a fungus and an insect that damage stored maize. Journal of Stored Products Research, 2015; 62: 74–80.

Zhou Q, Ravnskov S, Jiang D, Wollenweber B. Changes in carbon and nitrogen allocation, growth and grain yield induced by arbuscular mycorrhizal fungi in wheat (Triticum aestivum L.) subjected to a period of water deficit. Plant Growth Regulation, 2015; 75(3): 751–760.

Baktash F Y, Alkazaali H A. Effect of grain moisture of corn at harvesting on some agronomic traits. The Iraqi Journal of Agricultural Sciences, 2016; 47(5): 1334–1339.

Ahmad S A, Iqbal M, Ahmad M, Tanveer A, Sial J K. Design improvement of indigenous beater wheat thresher in pakistan. Pakistan Journalof Agricultural Sciences, 2013; 50: 711–721.

Mesquita C, Hanna M, Costa N, França N. Soya bean threshing by nylon cords on rotating shafts. Journal of Agricultural Engineering Research, 2000; 77(3): 297–301.

Kalsirisilp R, Singh G.. Adoption of a stripper header for a Thai-made rice combine harvester. Journal of Agricultural Engineering Research, 2001; 80: 163–172.

Sudajan S, Salokhe V M, Chusilp S. Effect of concave hole size, concave clearance and drum speed on rasp-bar drum performance for threshing sunflower. Agricultural Mechanization in Asia, Africa, and Latin America, 2005; 36: 52–60.

Kemanian A R, Stöckle C O, Huggins D R, Viega L M. A simple method to estimate harvest index in grain crops. Field Crops Research, 2007; 103(3): 208–216.

Yang L, Cui T, Qu Z, Zhang D X. Development and application of mechanized maize harvesters. Int J Agric & Biol Eng, 2016; 9(3): 15–28.

Gregory J M. Combine model for grain threshing. Mathematicaland Computer Modelling, 1988; 11: 506–509.

Wang X R, Shi Q X, Ni C N. Study on the impact numbers of threshing tooth on rice grain for semi feeding unit. Journal of Agricultural Mechanization Research, 2011; 4: 17–20. (in Chinese)

Olaoye J O, Oni K C, Olaoye M M. Computer applications for selecting operating parameters of stationary grain crop thresher. Int J Agric & Biol Eng, 2010; 3(3): 8–18.

Xu L Z, Li Y M, Ding L F. Contacting mechanics analysis during impact process between rice and threshing component. Transactions of the CSAE, 2008; 24(6): 146–149. (in Chinese)

Li Y M, Wang X R, Xu L Z. Thresing injury to rice grain based on thre energy conservation. Chinese Journal of Mechanical Engineering, 2007; 43(3): 160–164. (in Chinese)

Xu L Z, Li Y M, Li H C. Analysis on factors affecting performance of rice kernel damage during threshing. Transactions of the CSAM, 2008; 39(12): 55–59. (in Chinese)

Liang Z, Li Y, Xu L, Zhao Z, Tang Z. Optimum design of an array structure for the grain loss sensor to upgrade its resolution for harvesting rice in a combine harvester. Biosystems Engineering, 2017; 157: 24–34.

Alluvione F, Moretti B, Sacco D, Grignani C. EUE (energy use efficiency) of cropping systems for a sustainable agriculture. Energy, 2011; 36(7): 4468–4481.

Xu L Z, Li Y M, Ma Z, Zhao Z, Wang C H. Theoretical analysis and finite element simulation of a rice kernel obliquely impacted by a threshing tooth. Biosystems Engineering, 2013; 114: 146–156.

Xu L Z, Li Y M. Finite element analysis on damage of rice kernel impacting on spike tooth. Transactions of the CSAE, 2011; 27(10): 27–32. (in Chinese)

Yu Y, Fu H, Yu J. DEM-based simulation of the corn threshing process. Advanced Powder Technology, 2015; 26(5): 1400–1409.

Tang Z, Li Y, Xu L, Kumi F. Modeling and design of a combined transverse and axial flow threshing unit for rice harvesters. Spanish Journal of Agricultural Research, 2014; 12(4): 973–983.

Špokas L, Steponavičius D. Impact of wheat stubble height on combine technological parameters. Journal of Food, Agriculture and Environmental, 2010; 8(2): 464–468.

Dhananchezhiyan P, Parveen S, Pandian S. Development and comparative study of cast Iron rasp bar and nylon rasp bar threshing cylinders for paddy threshing. Agricultural Engineering, 2013; 4: 45–54.

Pužauskas E, Steponavičius D, Jotautienė E, Kemzūraitė, A. Substantiation of concave crossbar shape for corn ear threshing. Mechanics, 2016; 22(6): 553–561.

Dhananchezhiyan P, Parveen S, Rangasamy K, Rangasamy K, Shridar B, Kumar A S. Development of a Nylon Rasp Bar Threshing Cylinder for Portable Paddy Thresher and its Performance Evaluation. Madras Agricultural Journal, 2013; 100: 623–626.

Xu L Z, Li Y M. Modeling and experiment to threshing unit of stripper combine. African Journal of Biotechnology, 2011; 10(20): 4106–4113.

Osueke C O. Frictional impact modeling of a cereal thresher. Am. J. Engg. & Applied Sci, 2011; 4(3): 405–412.

Olaoye J O, Oni K C, Olaoye M O. Computer applications for selecting operating parameters in a stationary grain crop thresher. Journal of Agricultural Technology, 2011; 7(1): 39–56.

Maertens K, Baerdemaeker J D. Design of a virtual combine harvester. Mathematics and Computersin Simulation, 2004; 65: 49–57.

Li H, Wang J S, Yuan J B, Qian Y Z. Analysis of rice mixture separation through vibration screen using discrete element method. Int J Agric & Biol Eng, 2017; 10(11): 231–239.

Miu P I, Kutzbach H D. Mathematical model of material kinematics in an axial threshing unit. Computers and Electronics in Agriculture, 2007; 58: 93–99.

Miu P I, Kutzbach H D. Modeling and simulation of grain threshing and separation in threshing units—Part I. Computers and Electronics in Agriculture, 2008; 60: 96–104.

Li Y M, Li H C, Xu L Z. Comparative experiments on threshing performance between short-rasp-bar tooth cylinder and spike tooth cylinder. Transactions of the CSAE, 2008; 24(3): 139–142. (in Chinese)

Jiang Y Y, Tu C H, Xu J M. A rice harvesting machine system for threshing prior to cutting. Transactions of the CSAE, 1993; 24(1): 55–60. (in Chinese)

Evers T, Millar S. Cereal grain structure and development: some implications for quality. Journal of Cereal Science, 2002; 36(3): 261–284.

Neale M A, Hobson R N, Price J S, Bruce D M. Effectiveness of three types of grain separator for crop matter harvested with a stripping header. Biosystems Engineering, 2003; 84: 177–191.

Shahbazi F. Impact damage to chickpea seeds as affected by moisture content and impact velocity. Applied Engineering in Agriculture, 2011; 27(5): 771–775.

Shahbazi F, Saffar A, Analooei M. Mechanical damage to navy beans as affected by moisture content, impact velocity and seed orientation. Quality Assurance and Safety of Crops & Foods, 2011; 3(4): 205–211.

Shahbazi F, Analooei M, Saffar A. Mechanical damage to pinto bean seeds as affected by moisture content, impact velocity and seed orientation. International Journal of Food Engineering 2011; 7(6): 1–15.

Langa F P, Muiru W M, Mbuge D, Ragwa, L R, Olubayo F M, Muthomi J W. Influence of endosperm types, seed moisture content and threshing methods on germination and seedling vigour of sorghum. World Journal of Agricultural Sciences 2016; 12(5): 378–383.

Špokas L, Steponavičius D, Butkus V, Kiniulis V. Substantiation of the Rational Technological Parameters for Threshing High-moisture Corn Ears. Rural Development, 2013; 6(1): 139–146.

Al-Mahasneh M A, Rababah T M. Effect of moisture content on some physical properties of green wheat. Journal of Food Engineering, 2007; 79: 1467–1473.

Woźniak W, Styk W. Internal damage to wheat grain as a result of wetting and drying. Drying Technology, 1996; 14(2): 349–365.

Govindaraj M, Masilamani P, Asokan D, Selvaraju P. Effect of Different Harvesting and Threshing Methods on Seed Quality of Rice Varieties. Int. J. Curr. Microbiol. Appl. Sci., 2017; 6: 2375–2383.

Boyd R S, Lauwers A V, Farley H M. Combine crop conveying and feeding system. 2016; U.S. Patents No.9301450.

Chuan-udom S, Chinsuwan W. Effects of operating factors of an axial flow rice combine harvester on grain breakage. Sonklanakarin Journal of Science and Technology, 2011; 33(2): 221–225.

Ahmadian H, Hassanpour A, Ghadiri M. Analysis of granule breakage in a rotary mixing drum: experimental study and distinct element analysis. Powder Technology, 2011; 210(2): 175–180.

Maertens K, De Baerdemaeker J. Flow rate based prediction of threshing process in combine harvesters. Applied Engineering in Agriculture, 2003; 19(4): 383–388.

Radwan G G, Salim R G, Al-Ashry A S. Development and test attachments to the tangential flow thresher to suit caraway crop threshing. Misr Journal of Agricultural Engineering, 2009; 26(3): 1068–1080.

Osueke E C O. Study of the influence of crop, machine and operating parameters on performance of cereal threshers. International Journal of Engineering Research and Development, 2014; 7: 1–9.

Sambasivan S, Kapahi A, Udaykumar H. Simulation of high speed impact, penetration and fragmentation problems on locally refined Cartesian grids. Journal of Computational Physics, 2013; 235: 334–370.

Zhao Z, Li Y M, Liang Z W, Gong Z Q. DEM simulation and physical testing of rice seed impact against a grain loss sensor. Biosystems Engineering, 2013; 116: 410–419.

Lenaerts B, Aertsen T, Tijskens E, Ketelaere B D, Ramon H, Baeraemaeker J D. Simulation of grain–straw separation by discrete element modeling with bendable straw particles. Computers and Electronics in Agriculture, 2014; 101: 24–33.

Ma J. An innovative vertical axial-flow threshing machine developed in China. Agricultural Mechanization in Asia, Africa, and Latin America, 2007; 38: 18–22.

Ma J. Analysis of performance and architechtural feature of threshing parts of vertical axial flow. Agricultural Machinery, 2003; 02: 24–26. (in Chinese)

Craessaerts G, Saeys W, Missotten B, Baerdemaeker J D. A genetic input selection methodology for identification of the cleaning process on a combine harvester, Part I: selection of relevant input variables for identification of the sieve losses. Biosystems Engineering, 2007; 98: 166–175.

Tado C, Wacker P, Kutzbach H. Development of stripper harvesters: a review. Journal of Agricultural Engineering Research, 1998; 71: 103–112.

Jiang Y Y, Tu C H, Luo P Z, Xu J M, Liu D S. Experimental investigation on TPC threshing apparatus of the drum type with wire loops. Journal of Northeast Agricultural College, 1988; 19(3): 320–328. (in Chinese)

Zareiforoush H, Komarizadeh M H, Alizadeh M R. Effects of crop-machine variables on paddy grain damage during handling with an inclined screw auger. Biosystems Engineering, 2010; 106: 234–42.

Zhao Z, Li Y M, Chen J, Xu J. Grain separation loss monitoring system in combine harvester. Computers and Electronics in Agriculture, 2011; 76: 183–188.

Wang H, Hu J T, Gao L, Jia Y F. Development and optimization of a novel grain flow sensor based on PVDF piezoelectric film. Int J Agric & Biol Eng, 2016; 9(4): 141–150.

Cho W, Kurita H, Iida M, Masuda R. Autonomous positioning of the unloading auger of a combine harvester by a laser sensor and GNSS. Engineering in Agriculture, Environment and Food, 2015; 8(3): 178–186.

Cho W, Iida M, Suguri M, Masuda R, Kurita H. Using multiple sensors to detect uncut crop edges for autonomous guidance systems of head-feeding combine harvesters. Engineering in Agriculture, Environment and Food, 2014; 7(3): 115–121.




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