Fremgangsmåde og apparat til at adskille værdifulde materialer fra inert affald

摘要

A process and apparatus for separating economic materials from inert waste has a screen 2 for screening inert waste to remove oversized material and the screened material is passed to a pre-washer 6 for pre-soaking and for removing fines smaller than a predetermined mesh size. The pre-soaked material is passed to a washer 14 for breaking down, in water, the pre-soaked materials which are larger than the predetermined mesh size and for removing the fines in suspension and screens 20 of differing size are provided for recovering the required cleaned material. Utility may be in separating soil, sand, minerals, gravel etc. from construction or demolition site wastes.