EP3288674A1 - Rührorganvorrichtung - Google Patents
RührorganvorrichtungInfo
- Publication number
- EP3288674A1 EP3288674A1 EP16719396.0A EP16719396A EP3288674A1 EP 3288674 A1 EP3288674 A1 EP 3288674A1 EP 16719396 A EP16719396 A EP 16719396A EP 3288674 A1 EP3288674 A1 EP 3288674A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stirring
- stirring blade
- blade
- support arm
- stirrer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
- B01F27/0726—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis having stirring elements connected to the stirrer shaft each by a single radial rod, other than open frameworks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1123—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades sickle-shaped, i.e. curved in at least one direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1125—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
- B01F27/906—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms with fixed axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0418—Geometrical information
- B01F2215/0422—Numerical values of angles
Definitions
- the invention relates to a stirring device according to the preamble of claim 1.
- DE 103 10 091 A1 shows a device for carrying out chemical and physical processes, in which flowable substances are mixed together, consisting of a vertical cylindrical container with inlets and outlets, and a central shaft and at this
- stirring blades are formed curved in the circumferential direction, said stirring blades are combined as stirrers in pairs one above the other into groups and wherein the wings of the one organ of the group radially concave and the wings of the other organ are curved radially convex.
- Turbulence can be generated on the connecting line between the points at which the mixing energy is supplied.
- DE 100 23 698 A1 shows a mixing and dissolving machine with a rotating around a vertical axis of rotation, upwardly conveying mixing helix, wherein said first mixing helix in the axial direction of a second mixing helix is arranged downstream and extending between the mixing helix in the axial direction, a transition zone ,
- FR 2 346 977 A2 shows a mixing trough with a mixer arranged centrally on an upper side of the mixing trough, which has a drive shaft with curved agitating blades fastened directly to the drive shaft, which protrudes into an interior of the mixing trough from above.
- the object of the invention is, in particular, to provide an agitator device with improved mixing behavior properties.
- the object is solved by the features of claim 1, while - -
- the invention relates to an agitator device, in particular radially-conveying stirrer device, in particular for mixing medium-viscosity to highly viscous media, with at least one Rchanorgannabe (10), which is intended to rotate about a rotation axis (12), with at least one stirring blade (14) and at least a support arm (1 6), which connects the stirring blade (14) with the Rchanorgannabe (10), wherein at least one of the axis of rotation (12) outgoing
- the stirring device comprises a plurality, preferably at least in
- stirring blades in particular at least two, preferably exactly two, stirring blades, and / or a plurality, preferably at least substantially identical, support arms, in particular at least two, preferably exactly two, support arms, on.
- the term "at least substantially identical to one another" is intended to mean, in particular, apart from manufacturing tolerances, identical to one another.
- Stirrer device and the entire stirring element in particular the entire axially-conveying stirrer and advantageously the entire radially-promoting stirrer include.
- the stirring element is different from a propeller and / or fan wheel, in particular for conveying air.
- Stirrer device is preferably provided to generate a piston flow in at least one operating state.
- a "medium-viscosity to highly viscous medium” is to be understood as meaning in particular a one-phase and / or multi-phase medium, in particular having at least one solid, at least one liquid and / or at least one gaseous phase, which in particular has rheologically distinct non-Newtonian properties
- a viscosity and / or an apparent viscosity of the medium-viscosity to highly viscous medium, in particular on the stirrer lies between 0.5, in particular at shear rates of 10 / s, in particular without gas fractions Pa ⁇ s (Pascal seconds) and 200 Pa ⁇ s, preferably between 1 Pa ⁇ s and 100 Pa ⁇ s and particularly preferably between 2 Pa ⁇ s and 30 Pa ⁇ s.
- the medium-viscosity to high-viscosity medium preferably comprises biomass.
- guides the medium- to highly viscous medium to a Reynolds number in the range between 10 un d 10000, advantageously between 15 and 8000, preferably between 25 and 5000 and particularly preferably between 30 and 1000.
- the stirring device is designed in such a way, in particular by a special form and / or a special material to process such medium-viscosity to highly viscous media.
- the stirring blade is in particular at least substantially plate-like and particularly preferably formed in one piece. The stirring blade can thereby
- a "main extension plane" of an object should be understood to mean in particular a plane which is parallel to a largest side surface of a smallest imaginary cuboid which just completely surrounds the object, and in particular by a center, in particular a geometric center, of the cuboid Furthermore, under a "at least in , ,
- Substantially "rectangular, triangular and / or trapezoidal object in particular an object to be understood, which with a volume fraction of at most 40%, preferably at most 30%, preferably at most 20% and particularly preferably at most 10% of a rectangular, triangular and
- the term "integral" should in particular be understood to mean at least materially bonded.
- the material bond can, for example, by an adhesive process, a
- welding process a soldering process and / or another, a person skilled in the appear reasonable process to be produced.
- molded in one piece is made one piece from a single blank and / or a cast.
- the Rhackorgannabe is particularly intended to at least one
- the at least one stirring shaft defines in particular the axis of rotation.
- the axis of rotation is arranged parallel to a main extension direction of the agitator shaft.
- the axis of rotation extends, in particular when viewed perpendicular to the main extension plane of the agitator shaft, through a, in particular geometric, center of the agitator shaft.
- Main extension direction of an object is to be understood in particular a direction which is parallel to a longest edge of a smallest geometric cuboid, which just barely completes the object
- the Rlickorgannabe is integrally formed.
- the at least one Rlickorgannabe is provided in particular for attachment of the stirring blade.
- the stirring blade is arranged in a mounted state on the Rlickorgannabe that the
- the support arm can be designed as any connecting element, in particular a holding element, which appears sensible to a person skilled in the art, such as
- the support arm is as
- the support arm is integrally formed.
- the support arm is in particular free of sharp edges.
- connection surface area should be understood as meaning, in particular, a surface area and / or a contact surface on which the support arm is connected to the agitator hub , each having a distance of at most 5%, preferably of at most 2%, preferably of at most 0.5% and more preferably of at most 0.1% of a total
- the stirring blade, the Rhackorgannabe and / or the support arm at least partially, preferably at least to a large extent and particularly preferably completely of an alloy and / or a metal, in particular stainless steel, duplex steel and / or titanium exist.
- an alloy and / or a metal in particular stainless steel, duplex steel and / or titanium exist.
- a conveying behavior in the radial direction can be specifically influenced and an axial mass transfer between individual , ,
- the medium-viscosity to highly viscous medium can also be advantageously mixed in the vicinity of a container wall, and dead zones can be effectively avoided.
- a uniform power input in particular temporal and / or spatial power input, can be achieved in the medium-viscosity to high-viscosity medium.
- advantageously a structurally simple and advantageously cost-effective stirrer device can be provided.
- a main extension direction of the stirring blade with the half-line includes an angle between 45 ° and 135 °, preferably between 55 ° and 125 ° and particularly preferably between 70 ° and 110 °.
- the support arm could for example be at least substantially straight and / or curved, in particular arcuate and / or S-shaped.
- the support arm is at least substantially L-shaped
- medium-viscosity to high-viscosity medium in particular in a vicinity of the stirring shaft, can be generated.
- the support arm is arranged at least substantially at half the height of the stirring blade, in particular centrally on the stirring blade, a fluid flow can be further optimized.
- at least substantially halfway up is to be understood in particular that a distance of the support arm from a central point of attachment of the agitating blade at most 0.5%, preferably - -
- the stirring blade advantageously has n bends, which subdivides the stirring blade into at least two and advantageously n + 1 stirring blade sections.
- n n
- the fold in particular a bending axis of the fold, at least substantially parallel to the axis of rotation.
- a conveying behavior in the radial direction can be adapted to different needs.
- Agitator blade sections of a Rntonblattinnenkante of the stirring blade decreases in the direction of a Rntonblattau connectionkante of the stirring blade.
- An innermost paddle section advantageously has a main extension length of between 2% and 45%, advantageously between 10% and 40%, preferably between 20% and 35% and particularly preferably between 27% and 31%, of a total
- a "main extension length" of an object is to be understood in particular to mean a length, in particular of the object, which is parallel to a longest edge of a smallest geometric cuboid which just completely surrounds the object further
- a Rlickblattkante in particular side surface, of the stirring blade are understood, which is remote in particular in an assembled state and / or in at least one operating state of the rotation axis and / or the Rhackorgannabe.
- a mixing behavior can be optimized and a radial and axial conveying behavior can be individually adjusted.
- a blade height of the stirring blade decreases in the direction of a stirring blade outer edge of the stirring blade.
- the blade height changes at least in a central region of the stirring blade, in particular with respect to a
- Blade height constant, at least in an inner region of the stirring blade, in particular with respect to a main extension direction of the stirring blade, whereby in particular insertion and / or threading of the stirring element can be simplified in a manhole.
- a "blade height" of the stirring blade is to be understood in particular to mean an extension of the stirring blade, which, in particular in an assembled state and / or in at least one operating state, at least in the
- an "inner region” of the stirring blade should be understood as meaning in particular a region of the stirring blade which, in particular, faces the axis of rotation and / or the agitator hub in an assembled state and / or in at least one operating state
- a region of the stirring blade can be understood which, in particular in an assembled state and / or in at least one operating state, faces away from the axis of rotation and / or the stirring orifice.
- Stirrer blade is to be understood in particular a region of the stirring blade, which, in particular in a mounted state and / or in at least one operating state directly adjacent to the inner region and the outer region. This can in particular a homogeneity of a
- Performance entry in particular a temporal and / or spatial
- Power input are improved in the medium-viscosity to highly viscous medium and, in particular radial, flow behavior along the stirring blade.
- a particularly advantageous flow behavior can be achieved if a blade height of the stirring blade in a vicinity of a blade inside edge of the stirring blade between 1% and 30%, preferably between 3% and 20% and particularly preferably between 5% and 15% of a total
- a "near zone” is to be understood as meaning, in particular, a spatial region which is formed by points which each have a distance of at most 10%, advantageously not more than 5%, preferably not more than 2% and particularly preferably not more than 1% of a total agitator orbital diameter of have a reference point and / or a reference component.
- Stirring blade outer edge of the stirring blade between 0.5% and 15% and preferably between 1% and 5% of a total Rlickorgan tomessers, can
- an optimized power input can be achieved.
- the Rlickorgannabe, the support arm and the stirring blade are at least partially integrally and advantageously integrally formed with each other.
- a stability of the stirring device can be increased.
- a fatigue strength and / or a life can be increased, which in particular reduced maintenance and replacement intervals and downtime can be significantly shortened.
- a stirring system with at least one, in particular vertically arranged, container, in particular pressure vessel, in particular for receiving medium-viscosity to highly viscous media, and with at least two stirring elements arranged in the container, each having at least one
- the stirring system may in particular comprise at least one stirring shaft.
- the stirring elements are advantageously arranged one above the other on the, in particular common, stirring shaft and in particular in the vertical direction.
- the stirring elements form at least two stirring stages.
- each stirring element forms at least one, advantageously exactly one, stirring step.
- each defines the
- each of the stirring elements and / or each stirring stage can also form at least two, advantageously exactly two, compartments.
- an axis of rotation is in this case in particular parallel to one, in particular vertically arranged,
- the stirring system may also comprise a plurality of stirring members, in particular at least three, at least four and / or at least five stirring members, which may in particular be arranged and / or fastened to one, in particular common, stirring shaft, in particular one above the other.
- the stirring system may further comprise, in particular, at least one medium-viscosity to high-viscosity medium, in particular arranged in the container.
- the medium-viscosity to highly viscous medium flows through the container, advantageously continuously, in the axial direction, in particular from top to bottom, in particular due to an external and / or externally impressed flow component.
- the stirring system is provided in particular to at least one
- the stirring system is provided to generate an at least substantially radial flow and in particular one, in particular additional, in particular by the
- an object is intended to at least substantially suppress an "axial flow" should in this context be understood in particular to mean that the object is intended to influence a flow behavior such that one, in particular additional, impressed by the object axial flow corresponds to at most 30%, advantageously at most 20%, preferably at most 10% and particularly preferably at most 5% of an overall and / or effective axial flow a conveying behavior in the radial direction is influenced in a targeted manner and an axial mass transfer between individual stirring stages and / or individual compartments can be at least partially and preferably at least largely suppressed, thereby advantageously providing a narrow residence time distribution in the individual stirring stages and / or Compartments can be reached.
- Embodiment of the Rlickorganvoriques a stirring member are provided, which is advantageously adapted to a geometry of the container, whereby in particular a nearly optimal piston flow can be achieved.
- the invention comprises a method for operating a stirring system, wherein a medium-viscosity to highly viscous medium arranged in a container is mixed such that one, in particular additional, axial flow generated in particular by stirring elements is at least substantially suppressed and in particular one, at least substantially , radial flow is generated.
- the stirring system, the, in particular vertically arranged, container, in particular pressure vessel, in particular for receiving medium-viscosity to highly viscous media, at least two arranged in the container stirrers, at least one stirring shaft and / or at least one, in particular arranged in the container, medium viscosity to high viscosity Medium include.
- the stirring system may also comprise a plurality of stirring members, in particular at least three, at least four and / or at least five stirring members, which in particular at one, in particular - -
- the stirring system corresponds to the aforementioned stirring system, wherein the at least two stirring elements arranged in the container each comprise at least one stirring device, in particular radially conveying stirring device, in particular for mixing medium-viscosity to high-viscosity media, with at least one Rownorgannabe which is provided to a Rotate rotation axis, with at least one stirring blade and at least one support arm which connects the stirring blade with the Rrockorgannabe, wherein at least one outgoing from the axis of rotation half-line exists, which intersects a center of gravity of a connection surface region of the support arm to the Rlickorgannabe and which free of intersections with the Stirring blade is.
- a mixing behavior can be advantageously improved.
- the at least two stirring elements form at least two stirring stages and a piston flow is generated in the container, wherein the
- Medium-viscosity to high-viscosity medium is mixed in particular such that an average residence time at least in the individual stirring stages at least substantially identical, in particular apart from operating tolerances is identical.
- an optimized mixing behavior can be achieved, wherein advantageously generates an at least substantially radial flow and in particular a, in particular initiated by the stirring elements, axial flow can be at least substantially prevented.
- an axial product exchange between the compartments can be at least partially suppressed.
- the agitator device should not be limited to the application and embodiment described above. In particular, the
- Fig. 1 is designed as a radial stirrer stirring member with a
- FIGS. 1 to 3 shows a stirring system with a container and a plurality of stirring elements from FIGS. 1 to 3.
- FIG. 1 to 3 show a stirring element 32 in the form of a radial agitator in a fully assembled state in a perspective view (see FIG. ,
- the stirring member 32 is integrally formed in the present case.
- the stirring member 32 comprises a,
- the stirrer device is intended for mixing high-viscosity media.
- the agitator device is intended for the digestion of biomass and in particular for use in the production of ethanol.
- the agitator device has a Rlickorgannabe 10.
- the Rlickorgannabe 10 is integrally formed in the present case.
- the Rlickorgannabe 10 is made entirely of stainless steel. Alternatively, however, it is also conceivable, a Rlickorgannabe - -
- the Rhackorgannabe could, for example, in two parts and / or four parts, preferably with identical Rhackorgannaben whatsoever be formed.
- the Rhackorgannabe 10 is provided to at least one
- a stirring shaft 36 (see, in particular Figure 4) record.
- the agitator hub 10 is intended to be attached to the agitator shaft 36.
- An orientation of the stirring shaft 36 defines an axis of rotation 12 of
- the Rlickorgannabe 10 is provided to rotate about the axis of rotation 12.
- the Rlickorgannabe 10 is provided in the present case to rotate in both directions about the axis of rotation 12.
- the stirring device comprises a plurality of stirring blades 14
- the stirring device comprises two stirring blades 14.
- the stirring blades 14 are at least substantially identical to each other.
- the stirring blades 14 are at least in
- the stirring blades 14 have an at least substantially constant material thickness.
- the stirring blades 14 are integrally formed.
- the stirring blades 14 are made entirely of stainless steel.
- Main extension plane of the respective stirring blade 14 at least substantially trapezoidal design (see, in particular Figure 3).
- the stirring blades 14 each have a stirring blade inner edge 28 and a stirring blade outer edge 30. Furthermore, the stirring blades 14 are arranged at angular intervals of about 180 ° to each other.
- an agitator device could also have three stirring blades, which are arranged in particular at angular intervals of 120 ° to each other, and / or four stirring blades, which are arranged in particular at angular intervals of 90 ° to each other.
- a stirring blades 14 could also have three stirring blades, which are arranged in particular at angular intervals of 120 ° to each other, and / or four stirring blades, which are arranged in particular at angular intervals of 90 ° to each other.
- a stirring blades which are arranged in particular at angular intervals of 120 ° to each other
- / or four stirring blades which are arranged in particular at angular intervals of 90 °
- Stirrer device more than four blades, such as at least five, at least six, at least eight and / or at least ten blades has.
- the stirring blades 14 are arranged spaced from the Rrockorgannabe 10.
- the stirring blades 14 are in an assembled state, such on the - -
- the stirring device comprises a plurality of support arms 1 6.
- the stirring device comprises two support arms 16.
- Each support arm 1 6 is assigned to one of the stirring blades 14.
- the support arms 1 6 are at least substantially identical to each other.
- the support arms 16 are integrally formed.
- the support arms 1 6 are made entirely of stainless steel.
- the support arms 1 6 are each formed as a rod-shaped spar.
- the support arms 16 are at least substantially
- the support arms 1 6 when viewed perpendicular to the axis of rotation 12 is at least substantially L-shaped.
- the support arms 1 6 are provided to the stirring blades 14 with the
- the support arms 1 6 are attached on the one hand to the Rlickorgannabe 10 and on the other hand on one of the stirring blades 14.
- the support arms 1 6 are integrally formed with the Rownorgannabe 10.
- a contact surface between the respective support arm 1 6 and the Rownorgannabe 10 corresponds to a connection surface area 20 of the support arm 16 to the Rlickorgannabe 10.
- An angle between the support arms 1 6 and the axis of rotation 12 corresponds in the present case 90 °.
- at least one support arm with an axis of rotation has a deviating from 90 ° angle.
- the support arms 16 are formed integrally with the respective stirring blade 14.
- the support arms 16 are arranged at half the height of the respective stirring blade 14, in particular centrally on the respective stirring blade 14.
- the support arms 1 6 extend at least a large part parallel to a main extension direction 38 of the respective stirring blade 14.
- the support arms 1 6 extend at least a large part along a - -
- a material thickness of the support arms 1 6 and / or a diameter of the support arms 1 6 is at least substantially constant.
- a material thickness of support arms and / or a diameter of the support arms decreases in the direction of a Rntonblattau strante.
- mounting options are conceivable.
- at least one support arm in an assembled state at least partially and / or completely non-positively and / or positively, in particular by a
- stirring blades 14 and of the support arm 1 6 assigned to the stirring blade 14 will be described, the following description referring to the other, in particular at least substantially identically constructed, stirring blade and the other, in particular at least
- support arm can be adopted.
- the stirring blade 14 has a fold 22.
- the fold 22 is arranged parallel to the axis of rotation 12.
- the fold 22 is arranged on one of the stirring blade outer edge 30 facing side of the stirring blade 14.
- a Kantungswinkel ß the fold 22 is about 150 °.
- the fold 22 divides the stirring blade 14 into two stirring blade sections 24, 26.
- Main extension length of the stirring blade sections 24, 26 decreases from the - -
- Stirring blade inner edge 28 in the direction of the stirring blade outer edge 30 from.
- An inner stirring blade section 24 of the stirring blade sections 24, 26 has a
- An outer stirring blade section 26 of the stirring blade sections 24, 26 has a main extension length of about 10% of a total stirring orifice diameter.
- a stirring blade has several folds, such as at least two and / or at least three folds.
- a slope of a change in the blade height of the stirring blade 14 in the central region corresponds at least substantially to a slope of a change in the blade height of the stirring blade 14 in the outer region.
- Blade height of the stirring blade 14 in a vicinity of the blade inner edge 28 in the present case corresponds to about 8% of a total
- a blade height of the stirring blade 14 in a vicinity of the stirring blade outer edge 30 is about 2% of a total
- Figure 4 shows an exemplary, in particular continuously operated and flowed through, stirring system with a vertically disposed container 34 and a plurality of arranged in the container 34 Stirrers 32.
- a vertically disposed container 34 and a plurality of arranged in the container 34 Stirrers 32.
- at least two stirrers 32 are arranged in the container 34.
- Stirring elements 32 are at least substantially identical to each other.
- the stirring elements 32 correspond to the stirring element 32 from FIGS. 1 to 3.
- each of the stirring members 32 has an inventive
- the stirring members 32 are stirrer as a multi-stage - -
- the stirring elements 32 are arranged on a common stirring shaft 36.
- the stirring members 32 are arranged one above the other on the stirring shaft 36.
- Each of the stirring members 32 forms a stirring stage.
- each of the stirring members 32 and / or each stirring stage defines at least one
- Compartment, in particular a mixing chamber, of the container 34 Compartment, in particular a mixing chamber, of the container 34.
- the stirring members 32 are arranged in the container 34 such that the axis of rotation 12 is arranged parallel to a vertically arranged container axis.
- a different number and / or differently arranged and / or differently formed stirring elements which in particular a
- Stirring device may have to arrange in a container.
- stirrers offset from each other such as
- the medium-viscosity to high-viscosity medium in the present case comprises biomass, in particular in the form of a phase.
- the medium-viscosity to high-viscosity medium flows through the container 34 continuously from top to bottom.
- a Reynolds number is between 30 and 500.
- the stirring system is intended to generate a piston flow.
- the stirring system and in particular the respective stirring elements 32 is / are intended to generate an at least substantially radial flow and at least substantially prevent an axial flow generated by the stirring elements 32 and, in particular, additional axial flow.
- Flow component of the medium-viscosity to highly viscous medium and / or a product exchange between the individual compartments results at least substantially exclusively by an impressed from the outside continuous flow of the container 34, while a means of
- Design and / or a design of the stirring elements 32 contributes significantly to a stabilization of the individual stirring stages and / or compartments.
- V corresponds to a volume of the respective compartment and Q to a volume flow which is advantageously impressed from the outside and through which the container 34 flows.
- the average residence time ⁇ in the individual agitation stages is, advantageously clearly, greater than a mixing time ⁇ of the stirring stage.
- the average residence time ⁇ is at least 1 ⁇ ⁇ , preferably at least 3 ⁇ ⁇ and particularly preferably at least 6 ⁇ ⁇ .
- the average residence time ⁇ is at least 1 ⁇ ⁇ , preferably at least 3 ⁇ ⁇ and particularly preferably at least 6 ⁇ ⁇ .
- the average residence time ⁇ is at least 1 ⁇ ⁇ , preferably at least 3 ⁇ ⁇ and particularly preferably at least 6 ⁇ ⁇ .
- Dwell time ⁇ thereby at most 30 ⁇ ⁇ , preferably at most 20 ⁇ ⁇ and
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015106512.6A DE102015106512A1 (de) | 2015-04-28 | 2015-04-28 | Rührorganvorrichtung |
PCT/EP2016/059506 WO2016174146A1 (de) | 2015-04-28 | 2016-04-28 | Rührorganvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3288674A1 true EP3288674A1 (de) | 2018-03-07 |
EP3288674B1 EP3288674B1 (de) | 2020-04-01 |
Family
ID=55860855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16719396.0A Active EP3288674B1 (de) | 2015-04-28 | 2016-04-28 | Rührorganvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US9968896B1 (de) |
EP (1) | EP3288674B1 (de) |
DE (1) | DE102015106512A1 (de) |
DK (1) | DK3288674T3 (de) |
WO (1) | WO2016174146A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019014709A1 (en) * | 2017-07-17 | 2019-01-24 | Commonwealth Scientific And Industrial Research Organisation | MIXING APPARATUS AND METHOD OF OPERATING THE SAME |
US20210237009A1 (en) * | 2020-02-03 | 2021-08-05 | Life Technologies Corporation | Fluid Mixing Systems with Modular Impellers and Related Methods |
CN112387161A (zh) * | 2020-11-16 | 2021-02-23 | 东莞市米儿塑胶原料有限公司 | 一种防撒料的聚氨酯树脂搅拌装置及其使用方法 |
CN114797529A (zh) * | 2022-05-24 | 2022-07-29 | 重庆大学 | 一种强化磷矿酸解的弹性折叠搅拌桨 |
CN115282829B (zh) * | 2022-08-17 | 2024-03-19 | 中交公路养护工程技术有限公司 | 一种生物质沥青再生剂生产制备装置 |
CN116948777B (zh) * | 2023-09-18 | 2023-12-08 | 山西荣欣酿造有限公司 | 一种醋的发酵装置及其使用方法 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US640369A (en) * | 1899-04-25 | 1900-01-02 | Ranslar R Cross | Batter-mixer. |
US2074673A (en) * | 1933-08-10 | 1937-03-23 | Augustus J Sackett | Mixing machine |
US2579874A (en) * | 1949-08-30 | 1951-12-25 | Anne S Shaw | Paint stirrer and blender |
FR2346977A2 (fr) * | 1974-02-25 | 1977-11-04 | Armor Inox Sa | Malaxeur de produits alimentaires |
DE2831192C2 (de) * | 1978-07-15 | 1986-05-15 | Alfred 6707 Schifferstadt Eisenmann | Verfahren zur Durchmischung eines in der hauptsache flüssigen Reaktionsgemisches |
DE3143287C2 (de) * | 1980-11-18 | 1985-11-21 | Herbert 7121 Ingersheim Rieger | Langsam laufendes Rührwerk in einem stehenden zylindrischen Tank, insbesondere Rotweinmaische-Gärtank |
US4456382A (en) * | 1983-02-03 | 1984-06-26 | The B. F. Goodrich Company | Agitator hub |
US5069784A (en) * | 1987-12-25 | 1991-12-03 | Japan Sewage Works Agency | Coagulation reaction tank |
US5297938A (en) * | 1990-03-26 | 1994-03-29 | Philadelphia Mixers Corporation | Hydrofoil impeller |
DE69122333T2 (de) * | 1990-08-07 | 1997-02-06 | Shinko Pantec Co Ltd | Mischapparat |
DE29502443U1 (de) * | 1995-02-15 | 1995-03-30 | Stahl, Walter, 67361 Freisbach | Mischer |
CH690835A5 (de) | 1997-10-25 | 2001-02-15 | Schweizer Ag Maschinenfabrik | Rührwerk zum Anregen einer Güllen-Zirkulation in einem Güllenkasten. |
US6334705B1 (en) * | 1998-10-01 | 2002-01-01 | General Signal Corporation | Fluid mixing impellers with shear generating venturi |
EP1167511B1 (de) * | 1999-03-12 | 2005-12-28 | Kobelco Eco-Solutions Co., Ltd. | Rührtank zur lagerung von hefelösung, verfahrung zur herstellung fermentierter lebensmittel wie bier unter verwendung des rührtanks und rührtank mit rührflügel |
DE10023698A1 (de) * | 2000-05-16 | 2001-11-22 | Lipp Mischtechnik Gmbh | Vertikalmischer |
JP2003033635A (ja) * | 2001-05-17 | 2003-02-04 | Shinko Pantec Co Ltd | 攪拌翼およびこれを用いた攪拌装置ならびに攪拌方法 |
DE10310091A1 (de) * | 2003-03-06 | 2004-09-16 | Abb Lummus Global Gmbh | Segmentierter Rührreaktor |
GB0907260D0 (en) * | 2009-04-28 | 2009-06-10 | Ge Healthcare Uk Ltd | Method and apparatus for maintaining microcarrier beads in suspension |
DE202011052408U1 (de) * | 2011-12-21 | 2012-03-22 | Skm Stahl- Und Maschinenbau Gmbh | Rührwerk |
JP6109006B2 (ja) | 2013-08-07 | 2017-04-05 | 住友重機械プロセス機器株式会社 | 撹拌装置 |
CA2966995A1 (en) * | 2013-11-08 | 2015-05-14 | Sanso Forvaltning Ab | Kneading device |
US9248420B2 (en) * | 2013-12-16 | 2016-02-02 | Pall Corporation | High turndown impeller |
US9854813B2 (en) * | 2013-12-30 | 2018-01-02 | Artech S.R.L. | Rotor for alimentary dough kneader machines |
-
2015
- 2015-04-28 DE DE102015106512.6A patent/DE102015106512A1/de not_active Ceased
-
2016
- 2016-04-28 US US15/569,103 patent/US9968896B1/en active Active
- 2016-04-28 WO PCT/EP2016/059506 patent/WO2016174146A1/de active Application Filing
- 2016-04-28 DK DK16719396.0T patent/DK3288674T3/da active
- 2016-04-28 EP EP16719396.0A patent/EP3288674B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
US9968896B1 (en) | 2018-05-15 |
EP3288674B1 (de) | 2020-04-01 |
DE102015106512A1 (de) | 2016-11-03 |
WO2016174146A1 (de) | 2016-11-03 |
US20180126341A1 (en) | 2018-05-10 |
DK3288674T3 (da) | 2020-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3288674A1 (de) | Rührorganvorrichtung | |
EP3171970B1 (de) | Rührorganvorrichtung | |
EP3498365B1 (de) | Rührorganvorrichtung | |
WO2018206710A1 (de) | Rührorganvorrichtung | |
DE2461032B2 (de) | Vorrichtung zum Begasen und Umwälzen von z.B. wäßrigen Flüssigkeiten | |
DE60317772T2 (de) | Zweirichtungenmischrotor und verfahren | |
EP1471993A1 (de) | Dispergier-vorrichtung | |
DE10314804A1 (de) | Koaxiales, gegenläufiges Rührwerk | |
DE102012004056A1 (de) | Vorrichtung zum Mischen mindestens zweier fluider Komponenten, drehangetriebener Mischereinsatz dafür und System aus beidem | |
EP0664155B1 (de) | Rührorgan | |
EP2150330B1 (de) | Rührorgan zum rühren abrasiver medien | |
DE102019101934A1 (de) | Rührorganvorrichtung | |
WO2015067599A1 (de) | Rührwerk zum mischen von fluiden | |
EP3386619B1 (de) | Rührvorrichtung | |
DE102010049034B4 (de) | Rührorgan und Rührwerk zum Mischen und/oder Homogenisieren strömungsfähiger Medien | |
EP2321398B1 (de) | Maischgefäss für die bierherstellung und rührer für ein maischgefäss | |
DE202012002102U1 (de) | Vorrichtung zum Mischen mindestens zweier fluider Komponenten, drehangetriebener Mischereinsatz dafür und System aus beidem | |
DE102008005018B3 (de) | Rührorgan und Rührwerk zum Mischen und/oder Homogenisieren strömungsfähiger Medien | |
DE19504033A1 (de) | Flügelscheibe für Rührwellen | |
EP2906334A1 (de) | Mischereinsatz | |
EP3887029B1 (de) | Rotor für eine vorrichtung zum mischen von pulver und flüssigkeit, und vorrichtung zum mischen von pulver und flüssigkeit | |
EP2480321A2 (de) | Axialwirkendes rührorgan, vorzugsweise ein aus blech gefertigter propeller | |
DE9418136U1 (de) | Rührorgan | |
DE10161180B4 (de) | Mischvorrichtung zum Mischen von mindestens zwei flüssigen Komponenten | |
WO2024100447A2 (de) | Homogenisator sowie vakuumprozessanlage und verfahren damit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20171124 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20191018 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1250644 Country of ref document: AT Kind code of ref document: T Effective date: 20200415 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502016009374 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 Effective date: 20200615 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
REG | Reference to a national code |
Ref country code: FI Ref legal event code: FGE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200701 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200801 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200702 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200701 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200817 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502016009374 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200428 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200430 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200430 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20200430 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200430 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
26N | No opposition filed |
Effective date: 20210112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 502016009374 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: B01F0007000000 Ipc: B01F0027000000 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200401 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230522 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20230420 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230421 Year of fee payment: 8 Ref country code: FR Payment date: 20230424 Year of fee payment: 8 Ref country code: DK Payment date: 20230419 Year of fee payment: 8 Ref country code: DE Payment date: 20230418 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20230419 Year of fee payment: 8 Ref country code: AT Payment date: 20230420 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230421 Year of fee payment: 8 |