Method and apparatus for removing fine particles from synthetic

Details Method and apparatus for removing fine particles from synthetic Method and apparatus for removing fine particles from synthetic

1994-03-22

1996-02-27

Bollinger, David H.

Classifying, separating, and assorting solids

Plural, diverse separating operations

Including electrostatic

2091274, 2091391, 209142, 209149, B03B 700

Patent

active

054941717

ABSTRACT:
Fine particles which electrostatically adhere to synthetic resin pellets are separated from the pellets by bringing the pellets/fine particles mixture into contact with an ionized gas. The ionized gas eliminates the electrostatic adhesion between the synthetic resin pellets and the fine particles. The resulting fine particles may thereafter be readily separated from the pellets and the freed fine particles may be withdrawn in a gas stream. Removal of the fine particles to less than 40 ppm is possible. Apparatus for carrying out the method is also described as is a system for stocking synthetic resin pellets using the described apparatus.

REFERENCES:
patent: 3341009 (1967-09-01), Bennet et al.
patent: 3441131 (1969-04-01), Gebauer
patent: 4299693 (1981-11-01), Paulson
patent: 4568453 (1986-02-01), Lowe, Jr.
patent: 4631124 (1986-12-01), Paulson
patent: 5035331 (1991-07-01), Paulson
patent: 5289921 (1994-03-01), Rodrigo et al.

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