The sorting machine

How exactly does our sorting machine work?

Stage 1. Shredding
The waste is first shredded to achieve a maximum size of 300mm. The shredder is fitted with an adjustable dosing setting to ensure an even feed and spread of materials on to the plant. To work efficiently, the sorting technology needs an even spread across the belts to ensure the optics can view all materials as it passes.

Stage 2. Trommel screen
This is fed via a tall incline belt from the shredder and tumbles all the waste to separate fine material and organics, which would otherwise contaminate the recycled products.
This fine material drops out of the base of the trommel and is baled, wrapped and sent for energy production.

Stage 3. Ballistic separator
This unit has rotating paddles which walks the flat material (2D) up over on to the next sorting line with the 3D falling down on to the 3D line.

Stage 4. First optical sorter
The 2D material now falls on to the accelerator belt, passing the first titech optical sorter. This optic is set to separate soft plastic film. The optics see the material to separate and send a message to blow air as it crosses the end of the belt. All soft plastics are blown on to the conveyor that sits behind the optic hood. This material passes to a hand-picking belt where any contamination can be removed manually, however the material is so clean we don’t actually need to use anyone to check it.

Stage 5. 2D line
The material that passes the first optic drops down on to the second accelerator belt where it passes the second optic, which is set to remove all paper and card products. What is left on the belt – around 10-15% of the original materials – is our refuse derived fuel (energy to waste) product, which drops into the bay below to be baled and wrapped ready for energy production.

The separated paper falls on to the bay behind the optic hood and down on to the hand-picking belt to be cleaned, with any contamination removed. We generally have two people on this belt to ensure a high quality final product. The paper drops to the bay below where it is pushed through periodically for baling.

Stage 6. 3D line
All 3D material passes the magnet to remove ferrous metal, which falls into a skip below and is sent for recycling locally. The material then passes the Eddie current machine, which removes all non-ferrous metals, such as aluminium cans. This material falls into containers below and is periodically baled ready for resale.

The remaining 3D materials move twice more past the third optic, recovering plastic on one side and all paper and card on the second pass.

Any residual waste continues into our second refuse derived fuel bay, which goes to energy production.

Everything is baled, wrapped if required, and exported for reuse…Zero to Landfill.

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