Arrangement for removing thread-like impurities from a defiberiz

Details Arrangement for removing thread-like impurities from a defiberiz Arrangement for removing thread-like impurities from a defiberiz

1991-01-10

1992-03-10

Hastings, Karen M.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 55, 162261, 241 793, 366228, D21B 132

Patent

active

050947150

ABSTRACT:
The present invention provides an improved arrangement for removing thread-like impurities, such as wire rope, wire and the like, from a defiberizing drum or the like used in the defiberizing of waste paper. A ramped or inclined member, in the form of a bar or a lath, is disposed within a first or inlet portion of the drum and is secured to the drum casing wall at a predetermined distance from the partition wall that separates the first portion from a second portion of the drum. As the drum operatively rotates, a wire ball or mass forming within the first drum portion is elevated by the ramped member to a height sufficient to bring the mass into proximity with an opening defined in the partition wall, thereby directing the mass through the partition wall opening and into the second portion of the drum for further processing and/or discharge from the drum.

REFERENCES:
patent: 2337137 (1943-12-01), Thompson et al.
patent: 3459380 (1969-08-01), Kartman
patent: 4519224 (1985-05-01), Seifert et al.
patent: 4687146 (1987-08-01), Sundman
patent: 4804439 (1988-02-01), Fredriksson

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