TCE installed a number of Invertek ODP Drives to reduce running costs and enhance the Grading Plant at Hanson Aggregates in Ripon.
Tim Coats of TCE said, "We were asked to replace the control system on a new replacement quarry crushing plant, for producing three different grades of gravel and sharp sand for the building trade. We needed to control the speed of the 22kw and 37 kW water pumps used in the crushing plant. with the use of Invertek ODP Drives, supplied by Crawford Controls Ltd, we can fine tune the speed of the pumps with potentiometers saving a huge amount of energy in the process."
TCE have also installed a large 75kw Optidrive to control the motor on a large barrel scrubber.
Tim commented, "With the benefit of soft start to save the drive belts and also dynamic braking to slow the barrel to a stop more quickly, we were able to stop product over spill onto a vibrating screen, which had previously been an issue."
TCE have installed a total of seven Optidrives, ranging from 5.5kw to 75kw mounted in control panels inside an air conditioned shipping container on this project and Hanson Aggregates are reaping the benefit.
Richard Cunningham, General Foreman, Allerton Park & Ripon Quarry, Hanson Aggregates says, “The benefits of using inverters in our business are already proving a cost saving. In the past, if we were required to slow an item of machinery down we would have to mechanically do this by the means of pulleys using valves to reduce the flow of water. With the introduction of inverters we can now do this much more quickly and without incurring the extra costs of purchasing pulleys to determine what speed we require. Using pulleys to slow an item of machinery does not necessarily save us in power, but inverters do. As a General Foreman I have to show power savings on an annual basis and this can be shown straight away with comparing the old system with the new system."
Key Customer Benefits:
- Control over speed of water pumps
- Slows machinery more quickly than using pulleys
- Proven cost savings
- Significant energy savings
Optidrive products used in this application: