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AssigneeKenneth S. Safe, Jr.
InventorHaigh McD. Reiniger
Estimating the term…
A chopped mixture derived from municipal solid waste, free of ferrous metal is fed into the open upper end of a vertical rotor chamber for contact sequentially by an upper and lower high-speed rotor, with the rotor blades of the rotors further chopping the mixture and imparting centrifugal force to the mixture particles. Selectifier screens concentrically surround the rotor blades at the upper and lower rotor positions and have mesh openings which effect ballistic separation and elimination of glass, grit, sand, dust and fiber elements at these levels dependent upon the screen size openings. The two rotors are separated to form an intermediate treatment zone permitting liquid or solid spray of the mixture particles passing vertically downward from the upper rotor zone to the lower rotor zone. The lower end of the rotor chamber opens toward a horizontal high-velocity airflow which is accelerated by modified venturi action to suck oversize lightweight plastic film out of the rotor treating zones to effect isolation of light-weight materials from the rotor zones to insure substantially plastic-free, low ash content, solid waste refuse derived fuel, particularly as discharged from the lower rotor zone being sized uniformly through the lower selectifier screen. Other modifications of the process are described, as well as important alternate uses for this garbage sorting machine forming the subject of this disclosure.
In an apparatus for obtaining a substantially plastic-free product from a chopped mixture derived from municipal solid waste, said apparatus comprising:
A process for obtaining a substantially plastic-free, low ash content chopped paper product from a ferrous metal and heavy object-free chopped municipal solid waste light fraction, said process comprising the steps of:
A rotor assembly for chopping solid particles and imparting centrifugal force to the particles, said rotor assembly being supported by a shaft driven in rotation about its axis, sais rotor assembly comprising:
Apparatus for obtaining from municipal solid waste a paper product substantially free of plastic, said waste having been treated for the removal of metals and heavy objects, said apparatus comprising:
Dependencies are inferred from the claim text.