Rotary processors and methods for mixing low viscosity liquids w

Details Rotary processors and methods for mixing low viscosity liquids w Rotary processors and methods for mixing low viscosity liquids w

1984-12-20

1986-04-15

Simone, Timothy F.

Agitating

Rubber or heavy plastic working

With specified vent means

366 76, 366 99, 366171, 366172, 366307, 366315, B01F 710, B29B 106

Patent

active

045824320

ABSTRACT:
Rotary processors and methods for mixing a low viscosity liquid with a viscous material while controlling plugging of the means for introducing low viscosity liquid to the processor. Viscous material is introduced to a mixing rotary processor comprising at least one annular channel carried by a rotor and enclosed by a housing to form a mixing passage. The material is dragged forward by the rotating channel walls from the passage inlet past a spreader as films on the channel walls, forming a void downstream of the spreader between the films. Low viscosity liquid is sprayed from a point within the void to be deposited on and carried downstream with the films of material and to be mixed with material collected at a passage end wall.
In one embodiment, pressure sealing means permits spraying into a saturated vapor zone in the void so that liquid vaporizes and is condensed onto the films as well distributed fine droplets. An especially preferred embodiment provides devolatilizing apparatus in which a low viscosity, low boiling devolatilizing aid is deposited onto and mixed with a viscous material to aid in the removal of one or more difficultly devolatilizable impurities.

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