Parnaby Cyclones supply Hamilton Waste & Recycling with a state-of-the-art Washing & Separation Plant.
Hamilton Waste & Recycling Ltd was incorporated in 2002 when the Hamilton family purchased the long-established firm of WM Finlayson & Sons. Since then, the company has rapidly grown to become one of the largest independent waste management companies in Scotland.
With over 110 employees Hamilton’s sustained investment has seen it double the size of its processing and storage facilities in recent years.
During this period, it has also increased its collection fleet by around 10% – a move which saw it become one of the first companies to introduce electric vehicles. The company’s commitment to quality is evident in its accreditations. It recently gained the only Pass 402 accreditation in Scotland. It has also received pass 109 accreditation for its recycled plasterboard derivative.
Investment in new equipment and technology:
Fully committed to investing in new equipment and technology to recycle as much waste as possible while diverting this material away from landfill. The company have invested heavily in waste management processing and recycling technology at their transfer stations, which ensures that as much waste as possible is recycled and diverted from landfill.
Recently the company has invested in a new state-of-the-art Washing & Separation Plant which has been supplied by Parnaby Cyclones of Chilton, near Ferryhill in County Durham.
The new plant was commissioned in August 2023 and is now fully operational on a new site at Loanhead, near Edinburgh and is based around the Parnaby natural medium barrel and cyclones-density washing system which included a comprehensive specification.
Ian Parnaby – Project Manager, commented “Our sales and design team worked with Hamilton Waste & Recycling to provide a bespoke proposal to achieve their requirements and to suit the site layout.
“After the build was complete a Parnaby site engineer stayed on-site 5 days a week to provide equipment training and to show how the Hamilton team could get the best out of the plant.”
Stuart Elliott – Site Manager, Loanhead, commented, “We put in the foundations and assisted with the erection of the plant. We have had very little niggles since commissioning, but one phone call to Parnaby, and it is always resolved quickly! Parnaby are a phenomenal company and very knowledgeable and they spent a lot of time teaching us how to operate the plant effectively to maximise production
Project duty:
With a project duty of 30-40tph of C+D and skip waste, 60/40 blended feed nominally <40mm feed size. The plant produces:
- 20mm x 40mm aggregate,
- 10mm x 20mm aggregate,
- 4mm x 10mm pea gravel,
- 2mm x 4mm or 0-4mm grit sand,
- 63um x 2mm soft sand,
- Coarse organics, wood polystyrene plastics etc.
A <63 microns silts-filter cake is produced from a Parnaby 2m wide multi-roll belt press filter which is sent to landfill.
The system also includes a fully closed loop water treatment system.
Production process:
All incoming waste is delivered to Loanhead from the Hamilton Smeaton Recycling Centre.
Material is fed into the hopper by wheeled loader which then travels up the primary conveyor passing under a magnet to reduce tramp metal that could cause blockages and directly into a 30’0” long - ‘630’ barrel where the material is scrubbed. Here the organics and plastics are liberated out of the barrel onto a trash screen with the aggregates and sand screwed up to the rear of the barrel to the logwasher.
The logwasher then applies a final scrub and liberates any trapped material from the end and feeds this onto the trash screen which incorporates a sand recovery beneath allowing the underflow [-1mm] to be fed back to the cyclone.
From the logwasher the clean aggregates and sand are fed onto the primary rinsing screen with the -4mm delivered to the primary cyclone feed tank. The underflow from the screen -2mm is then delivered to the secondary cyclone where it is cleaned and sent to drainage and stockpile.
The large aggregates are fed onto the aggregate screen and then through a picking station via an Eddy current separator and drum magnet where small pieces of non-ferrous and ferrous metals are removed. Remaining materials are then fed onto a sizing screen which delivers a 4-10, 10-20 and 20-40 aggregate to respective stockpiles.
Parnaby philosophy:
Parnaby Cyclones has a primary objective to provide their clients with unique differentiators which provides much more flexibility with our systems. This allows our clients to adapt to the current market and opens the equipment to accept a wider range of materials feed so that our clients can extract value from more challenging sources. We can integrate density separation processes into the overall solution for coarse and fine materials allowing heavier contamination to be removed such as dense plastics, saturated organics, gypsum, and wood.
Parnaby Cyclones have pride in their customer service and support, as a family business it is their core principle to create a working partnership with their clients helping them achieve their goals and provide high quality, reliable products to safeguard their future. Their experienced team can provide excellent support for maintenance and provide competitive spares at a rapid response time if required.
Robin Stevenson MD - Hamilton’s Waste & Recycling Ltd, commented “Partnering with Parnaby Cyclones on this project was absolutely the right decision for the Hamilton business they have been with us every step of the way and any issue was resolved very quickly.
“Through design, construction and commissioning all the way through to our current operational state, Parnaby has been with us on every step of the journey.
“Reducing waste, conserving natural resources, and driving the local circular economy is at the heart of our philosophy, and the quality and performance of the Parnaby equipment is enabling us to deliver this with confidence.