Recycling of Insulating Foam Waste

Insulating materials from extruded Polystyrol-HR-foam (XPS) have proven themselves in many applications i.e. for steep roof, floor, exterior/interior wall insulation and many other areas.  The production of extruded HR foam sheets is therefore continuously expanding worldwide.  During production and further processing, waste is created in form of rejects or milling chips.

PALLMANN recycling technology offers the decisive advantage of being able to produce free-flowing agglomerates with high bulk density that can be immediately re-entered into the production cycle.

With high throughput rate and economic performance, a granulator first of all produces a granule of defined size that can be further processed in the Plast-Agglomerator.  The sturdy and durable design of the granulator is made for extreme, continuous operation.  Load controlled material feeding via conveyor belt and draw-in rollers guarantees comfortable horizontal feeding.

The Plast-Agglomerator produces agglomerate from the granule, by means of gentle agglomeration with frictional heat, without any major thermal stress.

Due to the low heat generation, cooling of the agglomerate by water immersion is not necessary, therefore avoiding contamination of the cooling water by flame retarding agents and eliminating the high cost of water purification.

Sheet waste and milling chips can be processed in one step.  Start-up under cold condition without prior cleaning of the agglomerating chamber is possible at any time.

Due to the space saving and compact modular design of the system, floor costs are reduced.