Per: Leandro Moreira Pinto (instituto tecnológico vale (itv)), Jose Jimmy Penagos (INSTITUTO TECNOLÓGICO VALE (ITV)), Bárbara Diniz Nins (REDEMAT, Universidade Federal de Ouro Preto (UFOP),), Rafael Nunes Costa (REDEMAT, Universidade Federal de Ouro Preto (UFOP)), Patrick Amaral Falqueto (Vale ), Cristian Camilo Viáfara (INSTITUTO TECNOLÓGICO VALE (ITV)), Adilson Rodrigues da Costa (REDEMAT, Universidade Federal de Ouro Preto (UFOP)), Maria Aparecida Pinto (DEMET, Universidade Federal de Ouro Preto (UFOP))
Abstract:
Conveyor belts are fundamental elements in the transport of iron ore and are essential for the system to function properly. The most widely used test for assessing abrasive wear on belts is the pin-drum, which involves a two-body abrasion process. However, this study proposes that the abrasive wear caused by iron ore on conveyor belt rubberss is a three-body abrasion process. From this perspective, there is a gap in the literature regarding the assessment of abrasive wear on conveyor belt rubbers using three-body abrasion tests. To address this gap, the research problem of this study was: What are the most abrasion-resistant iron ore conveyor belt rubbers available on the market? To answer this research problem, the main objective of this work was to evaluate the application of the dry sand rubber wheel test with a methodology adapted from ASTM G65 standard for ranking rubbers. Furthermore, to select a methodology for different test severity conditions. Four conveyor belt rubbers (A, B, C and D) were tested in three severity or normal load conditions: high (70 N), medium (45 N) and low (13 N). The results indicated that the condition of 70 N was the most effective for ranking the rubbers behavior. B rubber showed the worst performance in terms of mass loss and was the only one on which no Schallamach waves were observed. The other rubbers performed better, with a similar behavior between them.
