Device for producing a solid-forming or foaming flowable reaction mixture
AssigneesBayer Aktiengesellschaft, Maschinenfabrik Hennecke GmbH
InventorsHeinrich Boden, Johann Niggemann, Bernhard Rentz, Reiner Raffel, Ferdinand Althausen
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Abstract
The invention relates to a method and a device for producing a solid-forming or foam-forming flowable reaction mixture by metered injection of flowable reaction components into a mixing zone from which the finished reaction mixture is discharged.
Claims3
A device for producing a solid-forming or foam-forming reaction mixture comprising storage containers from which feed pipes lead via metering pumps of adjustable output to a mixer head housing and merge in said housing via impingement nozzle openings within said housing into a mixing chamber, the mixing chamber having an outlet opening, characterized in that
- (a) axially hydraulically movable nozzle needles are concentrically mounted in longitudinal bores within said housing and are adapted to vary the cross-sectional area of said nozzle openings and in that
- (b) hydraulic drive means within said housing to move each nozzle needle, said hydraulic means located opposite to the nozzle openings and being provided with at least two mechanically adjustable stroke-limiting stops, said stops located along the stroke of the hydraulic drive means, at least one of the stops being located within said housing.
Dependencies are inferred from the claim text.