TREATMENT OF CAR SHREDDER DUST

PURPOSE:To satisfy conservation of resources, volume reduction and economical paying-off simultaneously by taking out part of combustible materials as fuel by mechanical means for crushing and fractionation by grain sizes and further solidifying the remaining part at the temp. in the range where harmful gases are not generated. CONSTITUTION:Car shredder dust 1 is crushed by a crusher 3 of an arbitrary type and the iron-components co-existing therein are removed by a magnetic separator 5. The dust is then sieved 6 to plural groups by grain sizes. The group 7 of the org. matter contg. chlorine plastics at a lower ratio is used as the fuel. The other groups are further crushed by a crusher 8. The crushed dust is kneaded and solidified under heating by a heating and kneading machine 9 at the temp. in the range where the harmful gases such as gaseous hydrogen chloride are not generated. Namely, the treatment for the gases generated by thermal cracking is not needed; therefore, the conservation of resources, the volume reduction and the economical paying-off are simultaneously satisfied.