A Review of Alternative Procedures to the Bond Ball Mill Standard Grindability Test

Vladimir Nikolić,Gloria G García,Alfredo L Coello-Velázquez,Maja S Trumić,Juan M Menéndez-Aguado,Milan Trumić

doi:10.3390/met11071114

Vladimir Nikolić, Gloria G García + Show 4 more

Open Access

https://doi.org/10.3390/met11071114

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Journal: Metals	Publication Date: Jul 12, 2021
Citations: 7	License type: CC BY 4.0

Affiliation: University of Belgrade, University of Oviedo

Abstract

Over the years, alternative procedures to the Bond grindability test have been proposed aiming to avoid the need for the standard mill or to reduce and simplify the grinding procedure. Some of them use the standard mill, while others are based on a non-standard mill or computation techniques. Therefore, papers targeting to propose a better alternative claim to improve validity, to reduce test duration, or to propose simpler and faster alternative methods for determining the Bond work index (wi). In this review paper, a compilation and critical analysis of selected proposals is performed, concluding that some of the short procedures could be useful for control purposes, while the simulation-based procedures could be interesting within a process digitalisation strategy.

Highlights

Determining the Bond index using the Fred Bond method [1,2] is considered the state-of-the-art methodology for mill calculations and a critical process parameter in raw materials selection and grinding process control
The knowledge of the Bond standard test is enriched continuously with new research, as is the case of the recently published work by García et al [3], which presents a deep analysis of the test procedure and evidences the importance of the grindability index, or the recent proposal by Nikolić and Trumić [4], which represent a new approach for determination Bond work index on finer samples
Alternative tests that simulate the standard Bond test with an abbreviated procedure; Alternative tests based on determining problem sample grindability using a reference sample with wi known

Summary

Introduction

Determining the Bond index using the Fred Bond method [1,2] is considered the state-of-the-art methodology for mill calculations and a critical process parameter in raw materials selection and grinding process control. Society for Testing and Materials) standard procedure has been established, so the primary reference used worldwide to define the procedure is the original proposal from Bond. A compilation and critical analysis of several selected methodologies were performed, based on the practical experience of the laboratories involved in this research. There are not many review papers describing alternative methods of ball mill wi determination. This review includes additional methodologies and considers the analysis of the relative square error and the procedure advantages claimed by the authors of each proposal

Alternative Procedures to the Bond Ball Mill Standard Test

Findings

Conclusions