REMEX GmbH products

This module was developed in order to increase the metal recovery rate from incinerator bottom ash. Our technical innovation is based on a ballistic separation principle. A controlled air stream is used to intelligently remove the disruptive fine fraction of ash, without removing inherent valuable metals during the process. The complexity lies in the optimum adjustment of environmental parameters and process variables such as the airdrop trajectory and air velocity. Following this, the use of additional eddy-current separators ensures the best possible non-ferrous recovery rate from the remaining mineral fraction.

After the base treatment in the central processing unit, the bottom ash of the grain size 2 to 12 mm is passed through the TRIPLE M-module, a special 3D sieve, designed for additional cleaning. Magnetic- and eddy-current separators remove any further ferrous and non-ferrous metals. The complex sieving process leaves the remaining aggregates with improved constructional characteristics. The resulting GRANOVA granulate is of interest to the asphalt and concrete industry.

This technology is still under development. The idea is to reprocess incinerator bottom ash aggregate into light pellets. The base for this is the fine bottom ash fraction from grain size 0 to 2 mm. Through a precisely matched addition of binding agents, additives and moisture, a mixture is generated in a drum, which then gains volume in the pelletisation unit. The final grain curve is 2 to 8 mm and is developed for use as aggregate in lightweight concrete.