How to wthhold the fire retardant during XPS recycling-A discovery recycling way

Last week we launched a fresh XPS chips and flakes recycle machine successfully at customer’s site in Beijing. This is a complete new recycle idea for the margins in the XPS production series.

Due to the pressure from conservation, CO2 foam XPS production range is gaining ground. However CO2 foam requires co-blowing agent such as for example ethanol or DME etc. which are flammable. How to recycle the XPS screw extrusion margins without loss of flame retardant is really a big problem besetting every XPS panel manufacturers.

Our initiative solves this issue intelligently. The chips and flakes from your margin from the XPS production line or from the unqualified XPS boards is going to be conveyed to some feeding silo by air flow.



These chips and flakes will be pushed into kneading extrusion system that may crush and compact it into semi-molten condition. Then the semi-molten lumps is going to be extruded into a dense sheet which will come into a pelletizer to make it into small granules such as the picture.