THE SITUATION
A wastewater treatment plant in the Midlands operates six grit tanks responsible for removing sand, gravel, silt, and other heavy inorganic particles from water, at an early stage of the treatment process. To perform this function, the tanks require multiple Detroiter gearboxes and aerators to operate on a 24/7/365 basis to continuously deal with the incoming sewage. Reliability was a problem on-site, with
the typical service life of the Detroiter gearboxes being only four months. The short lifespan of the units was causing both the frequency of unplanned downtime and maintenance costs to get out of control.
The maintenance team on-site, contacted HAYLEY DEXIS for assistance.
THE SOLUTION
Specialists within the dedicated HAYLEY DEXIS | Drives division arranged a site visit to better understand the issues being faced by the plant and to offer a solution. Soon after the initial visit, a solution
was presented to the customer and the order was placed. This order included.
– 16 aerators assembled in-house by HAYLEY DEXIS | Drives, using a Flender gearbox and WEG motor, sprayed blue.
– 60mm and 70mm male shaft options and special half-couplings made in-house for the aerator assemblies.
– 5 Detroiter gearboxes (with a 90mm bore size) in a bespoke arrangement to suit the customer’s exact requirements, including retrofit output flanges.
– Torque limiters and shear pin couplings.
"THIS ORDER SHOWCASES THE VALUE THAT THE DRIVES TEAM AT HAYLEY DEXIS CAN PROVIDE"
THE RESULT
The work undertaken by HAYLEY DEXIS | Drives showcases the value that they can provide to customers. The solutions have been designed and re-engineered to the customers’ exact requirements and will outperform and the previous units being used on the plant’s grint tanks, while lasting years into the future with the correct management of its lubrication.
The new units have also been designed to be easy to install, to help to make the transition as seamless as possible.