Agitating – Rubber or heavy plastic working – With specified vent means
Patent
1989-05-18
1991-06-18
Jenkins, Robert W.
Agitating
Rubber or heavy plastic working
With specified vent means
366 76, 4254051, B01F 702, B29B 110
Patent
active
050245317
ABSTRACT:
A device for continuous degassing of a mix of liquids and solids, such as, polymer binding agents and filler materials and/or fibers is disclosed. In this invention, an inlet housing (1), which is to contain the mix, and a vacuum chamber (6) in direction of transport in a distance from the inlet housing are directly connected with a conveying unit (2). A part of the conveying unit (2) itself is designed as a metering unit (11).
Mixes of liquids and solids, such as polymer binding agents and filler materials and/or fibers are degassed in the device and the complete mix is placed in an inlet housing, open to the atmosphere, and the unitary, multi-zoned conveying screw carries the mix from the inlet housing. The mix in the inlet housing, and in the conveying screw creates a pressure-seal at vacuum chamber. The unitary screw carries the mix into the vacuum chamber, allowing sufficient residence time for degassing of air bubbles, carries the resulting mix into a second, down stream sealing section, and to the discharge point.
REFERENCES:
patent: 3562379 (1971-02-01), Duggins
patent: 3633880 (1972-01-01), Newmark
patent: 3985348 (1976-10-01), Skidmore
patent: 4129543 (1978-12-01), Kaplan
patent: 4260264 (1981-04-01), Maki
patent: 4473673 (1984-09-01), Williams et al.
patent: 4652596 (1987-03-01), Williams et al.
Jenkins Robert W.
KWM-Kunststoffmaschinen GmbH
Vigil Thomas R.
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