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US 5,669,710 AGranted
Completely self-cleaning mixer/reactor
AssigneeBayer Aktiengesellschaft
InventorsKlaus Schebesta, Heinrich Schuchardt, Martin Ullrich
Life of this patent
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Abstract
A multi-axis mixer/reactor with a large available useful capacity, which is kinematically self-cleaning, comprising at least one housing one, two or more parallel, contrarotating shafts 2, 2', on which intermeshing groups of gear wheels 3, 3' are disposed in an axially spaced-apart manner. The gear wheels 3, 3' are connected to one another by kneading bars 5, 5', while further kneading bars 4, 4' which are connected in each case only to one gear wheel are likewise disposed on the end faces of the gear wheels.
Claims8
A mixer/reactor comprising:
- a surrounding housing;
- two or more parallel axially directed counter-rotating shafts disposed in said housing, each of said shafts having respective groups of intermeshing gear wheels mounted thereon, which gear wheels are disposed in an axially offset manner, each of said gear wheels having a plurality of circumferentially spaced apart radially extending teeth, each of said teeth being connected by a kneading bar to the immediately adjacent gear wheels and each of said teeth having at least one further kneading bar disposed on each end face thereof, with the exception of the end faces of the gear wheels facing the housing end faces, said further kneading bars not being connected to any other gear wheel, the edges of cut of the gear wheels and kneading bars which arise in any radial section all being geometrically either arcs of a circle around the center of rotation or epicycloidal sections,
- the edges of cut of the gear wheels and kneading bars which arise in any radial section all being geometrically concave when they point inwards,
- the edges of cut of the gear wheels and kneading bars which clean the housing at least with one edge at the periphery being convex when they point outwards, except for the edges of cut of surfaces which are cleaned by another shaft,
- whereby the end faces of each gear wheel, apart from those which are cleaned by the housing end faces, are kinematically cleaned by the kneading bars of a respective other adjacent shaft, and the remaining surfaces of the gear wheels are completely kinematically cleaned either by the housing or by the intermeshing gear wheel of an adjacent shaft,
- the unconnected end faces of said further kneading bars are cleaned by the gear wheels on an adjacent shaft,
- the remaining surfaces of said kneading bars and said further kneading bars of each of said shafts are completely kinematically cleaned either by said housing or by an adjacent shaft or by the kneading bars of an adjacent shaft.
4 more elements
Dependencies are inferred from the claim text.