Good Afternoon All

We are looking to design a 70T capacity dump hopper with a belt feeder to discharge material onto a field conveyor system

the material being handled will be as-dug sand and gravel at -150mm, dumped into the hopper using 40T rock trucks

the outlet of the hopper will be circa 3.6m long and 900mm wide with a throat depth circa 600mm which will allow us to discharge at 600tph with a belt speed of 0.25m/sec

I have also looked at a load breaker in the hopper, positioned above the belt to take the load off the belt

what I need to do now is work out the required power and T1 and T2 tensions so I can look at suitable belts and drives

could anyone advise best practice for this or a spreadsheet would be wonderful ■