Springfield Farm Quarry benefit from a replacement Wileman Scrubber Barrel.
Wileman Engineers Ltd have recently supplied and installed a refurbished Wileman Pnu Drive Scrubber barrel to ensure production at the Springfield Farm Quarry.
Located at Hotspur, near Beaconsfield, Buckinghamshire, Springfield Farm Quarry is a family owned and operated mineral operation. Operational since 1982 the quarry has extensive reserves of sand and gravel and under the current licence is allowed to process a quarter of a million tonnes/annum.
Operating an on-site wash plant, all material is processed through an ‘aged’ scrubber with anything above 20mm being crushed further down the process line. Nearing the end of its life the production team were faced with the fact that to maintain this machine would be very expensive as no parts were available and manufacturing them would be very costly. With this in mind the production team decided to replace this scrubber with a machine that was more efficient and less costly to maintain.
Brian Stevens – Quarry Manager, commented, ”The old scrubber ran on iron wheels which were no longer available and far too expensive to have made. So we researched the market and found Wileman Engineers who came to site and provided us with a workable solution at the right cost.”
After a subsequent site visit and a quotation Wileman Engineers were awarded the project and subsequently supplied a refurbished 2m diameter x 4m long Wileman Pnu Drive Scrubber.
The new machine came complete with a modified mainframe to suit the existing structure and a refurbished Hansen gearbox and a 75Kw 4 pole motor. New tubeless Michelin support tyres on second hand rims, second hand drive and idling shafts and new spherical roller bearing internals fitted to second hand bearing housings completed the mainframe assembly.
The refurbished barrel was shot blasted and repainted and included second hand rubber liners which were already fitted. A new fully rubber lined feed end plate and a discharge end plate and cylinder were bolted to the barrel shell to complete the barrel assembly.
The perfect solution:
Matthew Joyce-Director of Wileman Engineers, commented, ”The installation was a challenge as the centre line of the original barrel was lower than the Wileman so a major modification of the Wileman base frame had to be made, additionally the Wileman barrel was also 342mm longer than the old barrel. However, it was a perfect solution for the team at Springfield Quarry, as they now have a very efficient barrel and their issue with spare parts has now been fully resolved as these will be required less frequently and more importantly are readily available off the shelf.”
The replacement scrubber was installed over a five-day shutdown by Wileman’s installation team who removed the old barrel and installed the Wileman Pnu Drive Scrubber. Also installed was a new combined top screen discharge chute and scrubber feed chute plus a scrubber discharge chute of similar design to the existing, all fully lined with bolted steel backed rubber liners. Additionally, a new return conveyor discharge chute, again with bolted steel backed rubber liners was supplied. Open deck flooring was provided around the scrubber, replacing the original timber, with pipework make-up pieces to supply fresh water to the new feed box.
Brian further commented, “Everything went to plan, we had other jobs to do on the plant and these were completed in the same time frame. Matthew made several site visits and he completed all the drawings and on installation everything fitted as it should within the time scale stipulated. It was completed mid-February and commissioned and we were back into production the following week and it hasn’t missed a beat! We really couldn’t fault them; everyone knew what they were doing.”
Anthony Middleton – Foreman, commented, it was just a great installation from start to finish, I would certainly fully recommend them.”
There have been many advantages following the installation of the Wileman Pnu Scrubber:
- Spare parts required less frequently, saving downtime and cost.
- Spare parts available and off the shelf.
- The Wileman design provides a more compact, smoother and quiet drive.
- Simple design coupled with the speed of the barrel is extremely efficient in scrubbing the dirt and adhering fines from the stone.
- Smooth tyre drive reduces the impact loads to the supporting structure.
Industry experience:
Wileman Engineers Limited were established in 1964 and have successfully completed Turnkey Projects for the mineral handling industry for many years. From the outset they developed a reputation for reliable, well designed plant & equipment and have provided excellent service at a competitive price.
Introducing the now acclaimed Scrubber Barrels onto the world market in 1967, these machines have continued to out-perform the competitors and have been developed to perform in other associated industries such as recycling.
In addition to Turnkey Plants and Scrubber Barrels, the company have successfully added to their portfolio and now include Mobile Crushing and Washing Plant, Vibratory and Rotary Screens, and Clay pickers.