20130320 - MechanicalLawrence Nordell will describe Conveyor Dynamics, Inc. (CDI)
practices on Overland Conveyors (OLC) in relation to what CDI
promotes as Optimized Total Life Cycle Cost of Ownership. Among the salient points for both trough and pipe conveyors are:
A. BELT DESIGN
1. Belt Cost Drivers – what is a good belt safety factor, cover gauge and specifications for wear and power; construction techniques that can save on raw material costs not practiced by belt suppliers/engineers
2.带结构的限制s – Idler Junction Pressure Index (IJPI), belt squirm at high pressure point under steel cord and its consequences
3. Belt Specifications – speed, cord construction, cord pitch, splice advancements, belt reels and limits of length/reel
4. Belt Influence on Demand Power – rubber rheology’s importance and lack of engineers/users embracing the performance gains – historical measurements and
+ 2 year Newcastle University testing of idlers and power loss in belt-to-idler contact zone
5. Belt Splice Techniques – definition of belt safety factor (SF), splice pattern advancements and consequences, modern strength limits as dictated by the splice dynamic efficiency; even or odd belt steel cord count. Old and newer practices
6. Belt Life Expectancy – based on Discrete Element Method (DEM) modeling and historical data. How long should an overland belt cover and splice last.
An opinion of good and bad practices.