Deritend supplies in-feed conveyor
A
Deritend Group product story
Edited by the Engineeringtalk editorial team
Nov 24, 2008
A UK aggregate producer has recently installed an in-feed conveyor from Deritend RMB to deliver stone to a large conveyor at a roadstone quarry in the Pennines.
When the new conveyor started to cause a build-up of material on an adjoining conveyor Deritend RMB was called in to provide a solution.
Deritend was able to specify, deliver and install a David Brown Series G reducer gearbox.
The gearbox was able to increase the conveyor's speed and match the load rating while maintaining the same input power of 75kW.
The company initially installed the new feed conveyor to deliver stone at its optimum operating speed of just over 2m/sec, delivering 700 tonnes per hour.
This speed and feed exceeded the capacity of the older feed conveyors filling the storage bins, resulting in a build up of material.
The secondary conveyor was originally driven by a 75kW electric motor running at 1,440rpm with a worm box producing an output speed of 36rpm.
This produced a conveyor speed of just over 1m/sec, which needed to be matched to the 2m/sec of the new conveyor in the most economic way possible.
RMB calculated that conveyor five needed to run at 68.75rpm to reach the desired speed.
It was also considered important not to increase the original input of 75kW as this would increase installation and running costs.
The solution was to be found in David Brown's latest Series G range of bevel-helical medium/heavy duty industrial gearboxes.
The gearbox offers features such as cooler running and ratio flexibility.
With fine pitched teeth creating a greater contact ratio there is an increase in strength with a Series G.
All the gears are case hardened and profile ground, leading to durability.
The gearbox is designed to be easily maintained and has a quadruple seal arrangement to keep dirt out and oil in.
Deritend RMB is the only UK company to stock the David Brown Series G gearbox in modular form.
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