TURBOSEPARATOR Russian patent published in 2004 - IPC

FIELD: pulp-and-paper industry, in particular, equipment used at initial stages of preparing pulp from paper wastes, in particular, for coarse additional cleaning of waste paper pulp from light and heavy contaminating inclusions and simultaneously for additional dismissal thereof.

SUBSTANCE: turboseparator has cone casing, cone feeding chamber mounted inside cone casing and adapted for receiving of waste paper mass to be processed, tangential branch pipe built-in at smaller end of cone casing and adapted for tangential feeding of waste paper mass into feeding chamber, drop cover arranged at larger end of cone casing and equipped with branch pipe adapted for removal of mass comprising light contaminating inclusions from feeding chamber and built-in at central part of drop cover. Turboseparator is further provided with branch pipe adapted for discharge of heavy contaminating inclusions from feeding chamber and arranged in casing lower part, perforated sieve adapted for cleaning of waste paper mass from contaminating inclusions and arranged at smaller end of cone casing, chamber adapted for receiving of cleaned waste paper mass and equipped with discharge branch pipe, and rotor equipped with blades and arranged in feeding chamber in the vicinity of sieve surface in axially aligned relation with respect to feeding chamber and sieve, and shaft axially aligned with feeding chamber and extending through sieve central part. Rotor with blades is fixed at one end of shaft while other end thereof is coupled to electric engine. Each blade of rotor is provided with scraper attached to free end of blade. Scraper longitudinal section is made in the form of straight trapezium with area making at least 1/3 of area of tangential branch pipe discharge opening. Scraper is extending in radial direction with respect to normal to rotor blade rotation plane so that trapezium middle line lies in turboseparator section plane extending along longitudinal axis of internal channel of tangential branch pipe or in parallel therewith, at distance of about 200 mm therefrom. Scraper surface facing casing inner surface is arranged concentrically therewith at distance of 1-150 mm therefrom.

EFFECT: improved quality of cleaning owing to increased selective capacity of turboseparator in separating of waste paper mass from light contaminating inclusions in feeding chamber.

2 cl, 2 dwg