Implementation of discrete element method to evaluate the design and material flow in ore pass systems

Adjiski, Vancho and Panov, Zoran and Popovski, Risto and Karanakova Stefanovska, Radmila (2020) Implementation of discrete element method to evaluate the design and material flow in ore pass systems. In: Technologies and Practices in Underground Mining and Mine construction, 5-8 Oct 2020, Devin, Bulgaria.

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Abstract

Ore pass systems are one of the main parts of the material transfer process in every underground mine. The extensive literature survey from field investigations connected with the problem of ore pass systems, shows failures and disappointment in the design criteria. The particular concern in the design process of the ore pass systems is the hangup of materials and the degradation on the ore pass walls generated from impact loads from the material flowing through the finger raise. In this paper, Discrete Element Method (DEM) of material flow through different ore pass system configurations is being developed and simulated. The purpose of this analysis is to examine the influence of different configuration angles between the ore pass and the finger raise aiming to develop strategies to minimize the hang-up and ore pass wall damage. To suite the define purposes, 9 different DEM models was simulated in order to present methodology that can serve to test and improve the design of the ore pass systems. The result clearly demonstrated that in the absence of universal guidelines and calculations the DEM analysis is an effective tool for improving and testing the design of the ore pass systems which is unique for every underground mine.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Ore pass, finger raise, system, DEM, analysis, underground mine
Subjects: Engineering and Technology > Other engineering and technologies
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Vanco Adziski
Date Deposited: 09 Nov 2020 09:19
Last Modified: 09 Nov 2020 09:19
URI: http://eprints.ugd.edu.mk/id/eprint/26697

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