Solid material comminution or disintegration – Processes – With classifying or separating of material
Patent
1997-02-24
1998-06-23
Rosenbaum, Mack
Solid material comminution or disintegration
Processes
With classifying or separating of material
241 79, 2411012, B02C 912
Patent
active
057693331
ABSTRACT:
A system including a method and an apparatus is disclosed for effectively separating a foamed heat-insulating material, such as insulated wall sections from used refrigeration equipment, into a foaming gas and a heat-insulating resin without any alteration and recovering them. A peeling portion for peeling a foamed heat-insulating material from a composite material containing the foamed heat-insulating material is included in a crusher provided with a high speed rotor having a plurality of hammers and a casing surrounding the rotor. A sorting portion is provided for sorting the foamed heat-insulating material with a tilting type wind force sorter having a limited tilting angle and a limited height of a wind tunnel. A pulverizing portion is provided for pulverizing the sorted foamed heat-insulating material and for separating a foaming gas therefrom. A condensing portion is provided for cooling and liquefying the separated foaming gas. A compressor is provided for compressing the pulverized non-foaming gas portions of the heat-insulating material for reducing the volume thereof. These recovery steps are accomplished without permitting escape of the foaming gas to the outside of the system.
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Hayashi Masakatsu
Kimura Nobuo
Makino Kazuo
Oda Chikao
Sakaguchi Kazuo
Hitachi , Ltd.
Rosenbaum Mack
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