- Pulper rags
- Loose pulper rejects - containing mainly plastics, metals, stones, wood
- Sand containing cleaner rejects
- Light weight rejects from the coarse screening
The stock preparation process generates rags that comprise wires and other rejects. Rejects are all those materials that are not paper, such as plastics, textiles and metals.
Depending on the requirements, ANDRITZ MeWa plants include several shredding stages in order to break down the stubborn rags properly. The robust machine technology with its very hard wearing cutting gear releases the metals (accounting for up to 40% of the content) completely. Impurities are separated into different fractions by subsequent separation processes. The calorific materials are further processed to provide substitute fuels.