St Helier recycling gets a boost with Middleton in-floor conveyor solution

In-Floor conveyor solution

Waste recycling machinery specialist Middleton Engineering has won a new contract from St Helier Municipal Services in Jersey to design and install an in-floor conveyor solution to optimise and improve materials handling of waste recyclables for its expanding baling operation on the island.

St Helier is responsible for kerbside collections and residential recycling for one third of the population plus card and packaging waste from 70% of the island’s commercial properties, all of which is sorted, baled and transported off island for reprocessing. A growing population, currently around 100,000 and with rising tourist numbers, adds to the pressure.

The new chain conveyor which will incorporate a two metre in-floor section, rising at an angle of 30° degrees in a swan neck configuration, will provide an important upgrade to the St Helier facility making it both easier and faster to load an existing SCAPA ME 80 horizontal baler supplied by Middleton’s in 2014.

As part of St Helier’s materials recycling line, the new conveyor is designed to feed material at up to 3 tonnes per hour or 24 tonnes per day, providing a consistent material feed to load the baler correctly and improve throughput. The in-floor section will significantly improve loading and at the same time reduce the level of manual handling. The process will also contribute to the production of consistent bales of waste material, in terms of weight and size, to further optimise containerised transportation and storage.

Under the contract, Middleton Engineering were responsible for the design, manufacture and installation of the conveyor which was completed in June 2016, plus designs for the civil works including the pit for the in-floor section of the conveyor. Ease of access for scheduled cleaning and maintenance were also important design considerations. These allow debris to be removed and preventative maintenance to be carried out at required weekly intervals to limit service interruption.

Safety systems are another crucial aspect of the design and with an overall length of 11.5 metres the conveyor incorporates a fully adjustable safety rope pull system over the conveyor with dual channel reset switches at each end. Other features include an automatic chain lubricator, an energy-efficient motor with soft start to minimise wear and speed controls to optimise flow rates.

Piers Tharme, Facilities & Resources Manager at St Helier Municipal Services, explains: “Optimising our recycling capacity and throughput for commercial and residential waste is crucial and this latest upgrade from Middleton Engineering will both simplify and speed up how we load the baler. This in turn will help with throughput, increasing efficiency at the depot, and improve the overall consistency of the process.”

Mark Smith, Engineering Director for Middleton Engineering says: “We’ve gained a reputation for supplying high quality waste baling and conveying equipment to island communities, including St Helier Municipal Services on Jersey, as well as operators in Guernsey, Malta and Gibraltar.”

The conveyor was installed on time in June 2016.

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