Two Different Systems Installed for Flexability : Machinex Equips Shanks’ 230,000 TPA RDF & Recycling Plant in Wakefield
Canadian recycling equipment manufacturer, Machinex, explains the sorting lines it installed at Shanks’ new 230,000 tonne per year Material Recycling Facility (MRF) in Wakefield.
Located in South Kirkby and commissioned under the Wakefield Waste Management Contract, the recently opened MRF will process residual waste and recycling from homes and businesses in the Wakefield District.
Machinex said that it installed two advanced sorting systems at the plant which will significantly increase the recycling rate of Wakefield district while diverting around 95% of the waste away from landfill.
The first system is a mixed dry recyclables (MDR) sorting plant that is expected to annually segregate approximately 36,000 tonnes of plastic, glass, metal containers, paper and cardboard at a capacity of 19 tonnes per hour.
According to Machinex this line uses screens, optical sorting and a glass clean up system, an air capture system for plastic film, ferrous magnets and a non ferrous eddy-current system – and will achieve purity rates of around 95%.
The second system the company installed segregates a variety of materials from residual waste at 30 tonnes per hour. The main goal of this system is to obtain a final fraction that meets the standards to produce Refuse Derived Fuel (RDF).
Machinex said that the priority is to remove RDF contaminants by maximising organics recovery and ferrous and non-ferrous metals recovery.
The organic fraction is segregated from other waste by a vibratory screen and then treated using an autoclave before it is sent to an anaerobic digestion plant.
Ferrous, non-ferrous metals, plastic film§, paper and plastics can be sorted by a combination of air treatment systems, ballistic separators, optical units, magnets, eddy-currents and other sorting equipment.
According to the equipment supplier its solution allows flexibility - an important aspect since the plant operator can select the most appropriate recyclates to be recovered according to market values and the desired calorific value of the RDF.
With the facility now up and running, Jonathan Menard, project director at Machinex said that “all the Acceptance Tests have been passed and the two systems were commissioned on time".
Nigel Catling, capital infrastructure director at Shanks added: " Both of these facilities were swiftly brought into use, delivering good throughputs and quality materials. We are now working on optimising the facilities to fulfill their full potential."
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