Method and apparatus for mixing viscous materials

Details Method and apparatus for mixing viscous materials Method and apparatus for mixing viscous materials

1978-01-30

1979-12-11

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 90, B29B 106

Patent

active

041781040

ABSTRACT:
A single-screw extruder and process for mixing viscous materials, for example, rubber mixtures and thermoplastic materials. The process and apparatus includes inserting a plurality of obstacles in the flow path of the material stream in the interior of the extruder cylinder. The obstacles are in the form of a number of series of studs protruding into the cylinder and accommodated by respective gaps or openings in the threads of the screw. The depth of penetration as well as the number of studs can be varied and adjusted by automatic means. The penetrating portion of the studs can be of different shapes according to the requirements for a thorough and turbulent deflection and mixing of the material stream.

REFERENCES:
patent: 3023455 (1962-03-01), Geier
patent: 3108530 (1963-10-01), Zies
patent: 3169752 (1965-02-01), Laubarede
patent: 3458894 (1969-08-01), Wheeler
patent: 3505085 (1970-04-01), Straughn

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