Aggregates Manager

September 2013

Aggregates Manager Digital Magazine

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Page 25 of 86

CSI: CONVEYORS SYSTEM. CAN HARM YOUR GES THAT SOLVE 10 CHALLEN by Ryan Grevenstuk and Patrick Mukushina I t's easy not to see a common problem when looking at your belt conveyor system every day, but a quick visual inspection can mean the difference between a productive day and a costly day for your aggregate operation. It's also helpful to know what to look for when you're walking the line because small irregularities can rob an operation of productivity. Listed here are the top 10 conveyor crimes that you can identify with a simple visual inspection, what problems they can cause, and how to fix them in a short period of time. 2 Culprit: Poor transition distance. Solution: Check your transition distances. Verify that your transition distances are in line with CEMA standards. Typically for fabric belts, CEMA recommends a transition distance of four times the belt width. 3 1 Culprit: Unskived splices, fasteners interfering with the cleaners. Solution: Skive your belt before applying splices, when possible, and use low-profile fasteners with a coined edge. Make sure all manufacturer's instructions are followed when splicing, including proper squaring of the belt. 24 Culprit: Fasteners that are too large for the smallest pulley. Solution: Check the minimum pulley diameters (where the belt wraps 90 degrees or more) against both the belt manufacturer's recommendations, as well as the fastener manufacturer's recommendations. Using a pulley diameter that is smaller than the belt and/or fastener's recommended size can produce excessive bending stresses with the possibility of belt splice failure. AGGREGATES MANAGER September 2013 EM_AGRM0913.indd 24 8/15/13 3:10 PM

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