Study the influencing parameters on performance of screw conveyor in order to redesign it in ShahreBabak copper complex

Document Type : Original Article

Authors
Mehdi Akhondizadeh
Meysam Atashafrooz
Kamran Fathipour
Mechanical Engineering Department, Sirjan University of Technology, Sirjan, Iran
10.22034/stme.2024.462509.1063
Abstract
In the present work, the performance of a case study screw conveyor in Shahrebabak copper complex has been studied. The design of screw based on the standard design codes, especially CEMA code, has been investigated to determine the design problems. The variation graphs of the screw speed, material rate and the upper bin discharge have been recorded to use in evaluations. Data collection revealed that the screw conveying rate of material did not match with the evaluations which given by the standard codes for the conveying capacity of screw. The data were used to derive a correction factor between the operational data and theoretical relations of conveying capacity. By the obtained correction factor, the relation for evaluation of the case screw capacity was derived and by with, the maximum screw capacity was determined. Redesign of screw, according to the material conditions and required capacity (of about 72 t/h) has been performed.  
Keywords
Conveyor design
Screw conveyor
Screw feeder
Material handling
Screw slope
Subjects
[1]. Xiaoxia S, Wenjun M, Yuan Y. Design method of a vertical screw conveyor based on Taylor–Couette–Poiseuille stable helical vortex. Advances in mechanical engineering. 2017 Jul;9(7).
[2] Liqing Sun, Xiaodi Zhang, Qingliang Zenga, Kuidong Gaoa, Kao Jiang, Jiawei Zhou, Application of a screw conveyor with axial tilt blades on a shearer drum and investigation of conveying performance based on DEM, Particuology, 2021
[3]. Owen PJ, Cleary PW. Prediction of screw conveyor performance using the Discrete Element Method (DEM). Powder Technology. 2009 Aug 10;193(3):274-88.
[4]. Yu Yongqin. Theoretical modelling and experimental investigation of the performance of screw feeders. Doctoral thesis, Mechanical Engineering Department, University of Wollongong, 1997
[5] Screw Conveyors for Bulk Materials ANSI/CEMA,  Conveyor Equipment Manufacturers Association, Standard No. 350, Fifth Edition, 2019
[6] Asli-Ardeh EA, Mohsenimanesh A. Determination of effective factors on power requirement and conveying capacity of a screw conveyor under three paddy grain varieties. The Scientific World Journal. 2012;2012.
[7] Olanrewaju TO. Design and fabrication of a screw conveyor. Agricultural Engineering International: CIGR Journal. 2017 Oct 11;19(3):156-62.
[8] Bolat B, Bogoclu ME. Increasing of screw conveyor capacity. Journal of Trends in the Development of Machinery and Associated Technology. 2012;16(1):207-10.
[9] Screw conveyor engineering guide, KWS manufacturing, 2015
[10] https://www.kaseconveyors.com /resources / screw-conveyor-engineering-guide/ inclined-screw-conveyors/
 
Science and Technology in Mechanical Engineering
Volume 2, Issue 2 - Serial Number 3
February 2023
Pages 49-56

  • Receive Date 13 June 2024
  • Revise Date 09 July 2024
  • Accept Date 08 February 2025
  • First Publish Date 08 February 2025
  • Publish Date 21 January 2024