Design, Developement and Evaluation of a Screw Feeder with Helical Mixer for Using in Triboaeroelectrostatic Mechanism

Document Type : Research Paper


1 Department of Biosystems Engineering, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

2 Assistant Professor, Biosystems Engineering, Agriculture Faculty, Shahid Bahonar University of Kerman, Kerman, Iran.


In this paper, a screw feeder with a helical ribbon mixer was designed and developed and evaluated for feeding Sisybrum seeds into a triboaeroelectrostatic mechanism for separating the impurities of fine grains. In order to check the feeding rates, the effects of rotational speed of screw in 3 levels of (60rpm, 90rpm and 120rpm), channeled plane outlet type in 3 levels of circle perforation with 4mm diameter, circle perforation with 6mm diameter and groove shaped with 5mm width and 280mm length and hopper location in 2 levels of (upside the conveying screw and upside the helical mixer) was investigated. The results was analysed on the basis of factorial experiment with randomized completely design. The results of comparing means based on multi-domain Duncan test showed that the most feeding rate is at the speed of 120rpm, groove shaped outlet and hopper location 2, and the least feeding rate is at the speed of 90rpm and hopper location 1. The most appropriate feeding rate for feeding Sisybrium seed into triboaeroelectrostatic by screw feeder is at the speed of 90rpm, circle perforation outlet with 4mm diameter and hopper location 1. The results by evaluating feeder operation on triboaeroelectrostatic mechanism showed that the feeder caused increasing material weight with the most purity (97%) and increasing separated impurity weight as twice as much of their amount without using feeder, by mixing material and charging them with static electric load.


Afsharipour, M., Jafarinaeimi. K. & Ganjovi A.R. (2016). Development and evaluation of Triboaeroelectrostatic mechanism for impurity separation of Sisybrium seeds. In: Iranian journal of biosystems engineering (IJBSE) 47(2), 383-392. (In Farsi)
Ameur, H., Kamla, Y. & Sahel, D. (2018) Performance of helical ribbon and screw impellers for mixing viscous fluids in cylindrical reactors. Journal of Chemichal Engineering, Vol. 2, No 26.
Ameur, H., Kamla, Y., Hadjeb, A., Arab, I.M. & Sahel, D. (2016). Data on mixing of viscous fluid by helical screw impeller in cylindrical vessels. Journal of Data Brief, 8, 220-224.
Askari Asli Ardeh. A., Abbaspour Gilandeh. Y. & Yavari. S. (2010). The relationship between required power and capacity of a screw conveyor and changes in rotational speed of screw shaft and tilt angle for some varieties of Paddy seed. 6th national congress of agricultural machinery and mechanization. Tehran university in Iran. (In Farsi)
Baranovsky, V.M., HEVCO, R.M., Dzyura, V.O., Klendii, O.M., Klendii, M.B. & Romanovsky, R.M. (2018). Justification of rational parameters of pneumoconveyor screw feeder. Journal of Agricultural Engineering, Vol. 18, 15-24.
Basinskas, G. & Sakai, M. (2016). Numerical study of the mixing efficiency of a ribbon mixer using the discrete element method. Journal of Powder Technology, Vol. 287, 380-394.
Behroozi Lar, M. & Mobli. H. (2007). Principles of agricultural machinery design (2nd ed.). Islamis Azad university press. (In Farsi)
Bolat, B. & Bogoclu, M. E. (2012). Increasing of screw conveyor capacity. Journal of Trends in the Development of Machinery and Associated Technology. Vol. 16. No. 1 , 207-210.
Bortolamasi, M., Fottner, J. (2001). Design and sizing of screw feeders. International congress for particular technology. Nuremberg Germany.
Dixit, K.D., Rao, A.S., Vasudevan, P. (2014). Effect of percent through loud on horizontal screw conveyor. International journal of engineering development and research, Vol. 2. Issue 1, 508-511
Gammoudi, A., Ayadi, A. & Baccar, M. (2017). The hydrodynamic and thermal characterization of a yield stress fluid in stirred tanks equipped with simple helical ribbon with two stages. Meccanica, 52, 1743-1766
Halidan, M., Chandratilleke, G. R. & Dong, K. Yu, A. (2016). The effect of interparticle cohesion on powder mixing in a ribbon mixer. Wiley Online Library Vol. 62, 1023-1037. Retrieved 04 November 2015 from
Hadjeb, A., Bouzit M., Kamla, Y. & Ameur H. (2017). A new geometrical model for mixing of highly viscous fluids by combining two-blade and helical screw agitators, Journal of Chemical Technology, Vol. 19, 3, 83-91.
Hevco, R.B., Strishenets, O.M., Lyashuk, O.L., Tkachenko, I.G., Klendii, O.M. & Dzyrura, V.O. (2018). Development of a pneumatic screw conveyor design and substantiation of its parameters. Journal of Agricultural Engineering, Vol. 54, 153-160
Kuncewicz, C. & Stelmach, J. (2017). Optimization of geometric parameters of a riboon impeller. Journal of Chem. Proc. Eng. Vol. 38. 491-502
Nicolai, R., Dittbenner, A.& Pasikanti, S. (2006). Large portable auger power and throughput analysis.Proc. ASABE Ann. Int. Meeting, July 9-12, Portland, OR, USA.
Olanrewaju, T.O., Jeremiah, I. M., Onyeanula, P. E. (2017), Design and fabrication of a screw conveyor. CIGR Journal. Vol. 19. No 3, 156-162.
Sarmad Nia. Gh. (1997). Seed Technology, Iranian academic center for education culture and research of Mashhad university in press. (In Farsi)
Utkarsha Govind Kulkarni, Hemanshu, P., Shah. Satyam, M., Sanas Abhishek, P. & Shete. Ganesh, H. (2017). Design and development of screw feeder. International Journal of Advance Research, Ideas and innovation in technology, Vol. 3, Issue 2, 1099-1102
Wable, M. M., Kurkute, K. (2015), Design and analysis of screw conveyor at inlet of ash/dust. International journal of emerging technology and advanced engineering, Vol. 5. Issue 5, 291-296
Yang, S. & Evans, J. R. G. (2007). Metering and dispensing of powder; the quest for new solid freeforming techniques, Journal of Powder Technology, Vol. 178(1), 56-72.
Volume 51, Issue 2
July 2020
Pages 341-349
  • Receive Date: 25 June 2019
  • Revise Date: 22 December 2019
  • Accept Date: 18 January 2020
  • First Publish Date: 21 June 2020