This article discusses how determining the viscoelastic properties of the cover material of a conveyor belt, using different rheological test modes, can result in significant differences in properties for the same material and testing conditions. The viscoelastic properties are applied to two mathematical models used to predict and compare the indentation rolling resistance performance of two rubber compounds. This article demonstrates how inaccuracies in the testing of the viscoelastic properties could result in a material with higher indentation rolling resistance properties being selected for a conveying system, making the power consumption of the system larger than necessary.

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The increasing demand for more efficient iron ore mining operation has driven the material handling plants to cater for 6 larger processing capacity. The associated wear problem on the internal lining of the bins and chutes needs to be 7 addressed before any significant efficiency gains. This study aims to investigate the factors determining the wear 8 resistance of common lining materials, including ceramics and metals, used in iron ore mining operation. A purposely 9 designed experimental system was utilised to quantitatively assess the wear resistance of a suite of wall lining materials against iron ore abrading medium, from which a wear rate for each lining was determined. The obtained wear rate was then correlated to fundamental properties of each lining material, including the chemical composition, the surface roughness and hardness. Results suggested that the hardness of a lining material can be utilised to indicate its wear resistance. From the experimental results, predictions of the service life of selected lining materials in bins and chutes were also performed.

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