MATERIALS HANDLING
The ITA’s test rig measures IRR
by as much as some 20% compared to conventional conveyor belts. Te IRR is measured on a practical test rig at the Hannover Institute of Transport and Automation Technology (ITA) and it became a DIN standard in 2012. Meanwhile it has also been transformed into a European Standard (DIN EN 16974:2016 Conveyor belts - Indentation rolling resistance related to belt width - Requirements, testing).
SPLICE DESIGN AND EFFICIENCY Every belt has at least one splice and an overland conveyor system consists of several single lengths that have to be spliced at site, and therefore has numerous weak points by its nature. Since a splice is almost the weakest point of a conveyor belt it is
obvious that they have to be done with the utmost care. Most of the splices achieve a static
breaking strength of roughly 100%, assuming they have been performed properly. However, more important is the dynamic splice strength in accordance with DIN 22110 part 3, since this parameter directly influences the required minimum belt breaking strength. In general a higher dynamic splice
efficiency, proven by the conveyor belt supplier and verified in accordance with DIN 22110 at the ITA, reduces the required minimum belt breaking strength. It is obvious that just by taking a higher dynamic splice strength into consideration during the design stage, significant cost savings can be achieved.
Tese include: • Lower conveyor belt breaking strength • Lower operating costs • Potentially smaller conveyor components, e.g. pulleys and idlers
To cope with the increasing requirements of the industry – conveying more material over longer distances, but at the same time focusing on cost and environmental aspects – steel cord conveyor belts from first-class manufacturers need to be considered. In addition, for optimal protection of the steel cord conveyor belt, it is highly recommended to consider the latest monitoring equipment. Te best manufacturers offer fully autonomous devices that continuously monitor the conveyor belt, 24/7, and use x-ray technology to detect all internal and external damage. Tese high-tech monitoring systems reduce both maintenance work and costs. Unscheduled shutdowns due to time-consuming repairs are prevented, which in turn avoids production losses.
Several lengths of belt have to be spliced at site
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www.engineerlive.com
Danny Slonka is with Phoenix Conveyor Belt Systems.
www.phoenix-conveyorbelts.com
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