Recovery of components of waste plasterboard

Details Recovery of components of waste plasterboard Recovery of components of waste plasterboard

B - Operations, Transporting

02

C

241/46

B02C 4/02 (2006.01) B02C 23/08 (2006.01) B03B 9/06 (2006.01)

Patent

CA 2039534

A method and apparatus for processing waste plasterboard consisting of sheets of paper or similar material adhered to a core of plaster of paris or the like, for recovering and separating the cover material from the gypsum of the core and for collecting each in a conveniently reusable form. A pair of rollers have para- llel axes of rotation and are held to a variably close spacing under pressure while being counterrotated to grasp and crush pieces of plasterboard, delivering the paper and crushed gypsum core material to a vibrating screen which separates the two for separate collection and subsequent reuse as raw materials or for other purposes. A second crusher and screen may be used for additional separation of the materials.

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