Process for mixing, device therefor and use thereof
AssigneeLenzing Technik Gmbh & Co KG
InventorsBerndt Cupak, Anton Ortner, Johann Grostlinger, Andreas Krotscheck
Life of this patent
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Abstract
In a process for continuous blending and/or fluidization of a suspension or a pulp and/or for incorporation of gaseous and/or liquid media into a suspension or pulp, respectively, in particular into a suspension of a fibrous material with fluids, the suspension or pulp, respectively, is subjected to shear forces in a rotary mixer. So as to be able to effect blending or incorporation, respectively, of media into the suspension or pulp, respectively, in an efficient manner and, optionally, over an extended period of time, the suspension or pulp, respectively, is subjected to shear forces of varying sizes across the circumference of the rotary mixer (FIG. 2).
Claims19
A process for continuous blending and/or fluidization of a suspension or a pulp and/or for incorporation of gaseous and/or liquid media into a suspension or pulp, respectively, in particular into a suspension of a fibrous material with fluids, using a rotary mixer, wherein the suspension or pulp, respectively, is moved, in addition, from the inlet to the outlet of the rotary mixer along the length or longitudinal axis thereof, characterized in that the suspension or pulp, respectively, is subjected to shear forces of varying sizes in the rotary mixer across the circumference of said rotary mixer, namely in that the flow of the suspension or pulp, respectively, is broken by flow breakers in the peripheral direction on the stator, as a result of a gap between the rotor and the flow breakers which has a varying size across the circumference.
A device for blending a suspension or a pulp and/or for incorporation of gaseous and/or liquid media into a suspension or a pulp, in particular into a suspension of a fibrous material with fluids, comprising a stator (2) and a rotor (4) arranged on the stator so as to be rotatable around its axis (3), with the axis (3) of the rotor (4) being arranged so as to be offset relative to the axis (9) of the stator (2), as well as comprising an inlet and an outlet opening (11′, 12′) for the suspension or pulp, respectively, and with the inlet opening (11′) being arranged at a distance from the outlet opening (12′) in the direction of the axis of the stator (2) which is configured as a longitudinal axis (9), characterized in that flow breakers (15) extending essentially transversely to the peripheral direction are provided on the stator (2) and drivers (16) extending essentially transversely to the peripheral direction are provided on the rotor (4).
Dependencies are inferred from the claim text.