Mining Mirror January 2018 | Page 36

Cradle to grave Further benefits that apply equally to retrofitted Weba Chute Systems and new projects alike include up to 80% reduction in material degradation. Weba Chute Systems should not be compared to conventional chute systems but rather seen as an improved alternative or ‘upgrade’. Weba Chute Systems scientific approach to the dynamics of bulk materials handling greatly reduces the problems associated with conventional transfer chutes. Weba Chute Systems facilitate absolute control of the material. Transfers points are critical A lthough transfer points potentially contribute to some of the highest maintenance costs on a mine, engineers seldom view transfer systems as a critical element of the minerals processing system. According to Mark Baller, managing director of Weba Chute Systems, transfer points are as important as any other machinery in the minerals processing cycle. “The uncontrolled discharge of bulk materials through conventional chutes has a history of escalated maintenance and replacement costs, not least of which can be [34] MINING MIRROR JANUARY 2018 attributed to excessive wear and other related problems,” says Baller. “The correct use of a streamlined, scientific approach to the dynamics of bulk materials handling greatly reduces the problems associated with conventional transfer chutes and results in significant cost savings,” adds Baller. Each Weba Chute System is custom designed for a specific application, considering factors such as belt width, belt speed, material sizes, shape and throughput. Baller says there are numerous advantages to this locally developed transfer system which, when introduced on a new project, achieves the optimum design configuration for the application with the best belt cleaning arrangement and optimum selection of belt type and size. In addition, spillage can be virtually eliminated. Additional benefits include up to 80% reduction in material degradation, less dust and noise, reduced production losses owing to fewer blockages, significantly reduced spillage and vastly improved safety levels. Easy access is provided for inspection and maintenance purposes and the system does not require ongoing supervision, again representing a saving in manpower and related costs.