Causes of failures in vibrating screens: A literature review

Abstract

In industrial contexts, the stratification of materials by size is a common requirement, particularly in sectors such as food production, construction, and mineral extraction. Vibrating screens, which have been in use for over a century, play a crucial role in this process by applying forced vibration to classify materials according to particle size. In mineral processing facilities, these screens are essential, operating under demanding conditions and heavy loads. This paper focuses on vibrating screens used for the particle size separation of iron ore and quarry rocks. Given these operational challenges, this equipment is prone to various structural and mechanical failures, including cracks, bearing malfunctions, and universal joint issues. This study, a collaborative effort between a machinery manufacturer and mining companies, identifies the main causes of failures in vibrating screens, highlighting deficiencies in design and manufacturing processes as well as lapses in operational and maintenance practices. Recognizing the significant impact that a vibrating screen’s maintenance shutdown can have on an entire mineral processing facility, the paper emphasizes failure prevention and aims to contribute to improved maintenance practices in industries, with the goal of enhancing operational efficiency and reducing losses.