Design and Development of Maize Dehusker cum Sheller: A Technology for Northern Transition Zone of Karnataka, India

Original Contribution
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Abstract

The Maize (Zea mays L.) crop is one of the most important cereal in agricultural production systems of Northern Transition Zone (Hyderabad-Karnataka region) in India. These Hyderabad Karnataka farmers (small-medium) are lack of economic technologies with maize dehusking and shelling, which fulfils the two major needs as crops and as livestock in farming. The portable medium size (600 kg/h capacity) electric motor (2.23 kW) operated Maize Dehusker cum Sheller (MDS) was designed to resolve the issue by considering engineering properties of maize. The developed trapezium shaped MDS machine having overall dimensions (length × (top and bottom) × height) of 1200 × (500 and 610) × 810 mm. The selected operational parameters viz, cylinder peripheral speed (7.1 m/s), concave clearance (25 mm) and feed rate (600 kg/h) were studied for machine-performance and seed-quality parameters. The performance of machine under these parameters showed the dehusking efficiency of 99.56%, shelling efficiency of 98.01%, cleaning efficiency of 99.11%, total loss of 3.63% machine capacity of 527.11 kg/kW-h and germination percentage of 98.93%. Overall machine performance was found satisfactory for maize dehusking cum shelling operation as well as to produce the maize grains for seeding purpose.

Keywords

Maize properties Maize dehusking shelling Thresher design 

Notes

Acknowledgements

The author presents the sincere thanks to Head, Dept. of Farm Machinery and Power and Dean, College of Agricultural Engineering, Raichur, Karnataka (India) for providing necessary arrangements, instrumentation and work force to conduct the study.

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Copyright information

© The Institution of Engineers (India) 2018

Authors and Affiliations

  1. 1.Agricultural Mechanization DivisionICAR-Central Institute of Agricultural EngineeringBhopalIndia
  2. 2.College of Agricultural EngineeringUniversity of Agricultural SciencesRaichurIndia

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