Method and an apparatus for the disposal of foam materials containing propellants and more particularly of foam materials such as polyurethane employed as insulating material for refrigeration devices

摘要

PCT No. PCT/EP92/02752 Sec. 371 Date Aug. 11, 1993 Sec. 102(e) Date Aug. 11, 1993 PCT Filed Nov. 27, 1992 PCT Pub. No. WO93/11885 PCT Pub. Date Jun. 24, 1993.In order to more especially to be able to dispose of appliance having foam materials containing propellant in a manner compatible with the environment such the same are introduced into a chamber (1) where foam materials are blasted or blasted off in order to render possible the detachment of the synthetic resin foam and to destroy the cell structure while releasing the propellant contained therein. In order to improve upon such disposal and more particularly to decrease the energy requirement there is the provision in accordance that the blasting or blasting away is performed by means of a cooled fluid flow, preferably, water whose temperature is below that of the boiling point of the propellant. As a result the propellants released are immediately liquified or remain liquid.