Mixed waste treatment plant RDF

with separatorswith shredder

In a RDF plant, the steps are usually pre-shredding, screening/separation and post-shredding. The process is designed to customer requirements. The composition of the input material and the sales opportunities of the final products are key factors. Pre-shredding with low speed The process starts with a Terminator single-shaft shredder, whose shredding performance is configured for the input material. The contrary resistance of the shredder lets it accept a wide range of input materials, while the even intake ensures a consistent supply of shredded material to the downstream process steps. Removal of fines If there is substantial organic content in the input material, it will need to be removed before further processing. The machine used for this is either a stationary Komptech drum screen or Flowerdisc disc screen. Preparation of RDF fraction The Ballistor's separation function enables splitting of the mater- ial stream into three fractions - flat (2D), cubic (3D) and fine. The 2D fraction consists largely of high-caloric, contrary-free materi- als that is further processed into fuel. The 3D fraction contains readily separable recyclables (metals etc.) that can be reclaimed for recycling. Defined post shredding The 2D fraction is post-shredded to the grain size specified by the customer. Since the contraries have already been removed at this point, this step is done directlywith the 2D fraction. Specific fuel qualities Additional processing steps can be applied to achieve the de- sired quality in terms of chloride, metal or ash content for various applications (cement works: rotary kiln or calcinator, fluidized bed furnace).