B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 18/14 (2006.01) B02C 18/06 (2006.01)
Patent
CA 2109733
An apparatus for producing shredded aggregate from, e.g., boards of expanded polystyrene, is described. The apparatus includes a shredding box defining a shredding chamber; a rotor housed in the shredding box; means for driving the rotor; a plurality of saw blades coupled to the rotor in linear succession, each saw blade having a plurality of spaced apart teeth, each successive saw blade being coupled to the rotor such that its teeth lie about halfway between the teeth of an adjacent saw blade; receiving means in the shredder box for receiving material to be shredded; and take-away means coupled to the shredder box for removing shredded material from the shredding chamber. Low density (e.g., 0.4-0.5 pcf loose bulk density) material having a uniform particle size distribution over time can be economically produced.
Driscoll Mary E.
Taub Karl D.
Smart & Biggar
W.r. Grace & Co.,-Conn.
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