EP4171779A1 - Maischefilter und verfahren mit statischer mischeinrichtung - Google Patents
Maischefilter und verfahren mit statischer mischeinrichtungInfo
- Publication number
- EP4171779A1 EP4171779A1 EP21736298.7A EP21736298A EP4171779A1 EP 4171779 A1 EP4171779 A1 EP 4171779A1 EP 21736298 A EP21736298 A EP 21736298A EP 4171779 A1 EP4171779 A1 EP 4171779A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mash
- filter
- channel
- inlet
- mixing device
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431971—Mounted on the wall
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
- C12C7/00—Preparation of wort
- C12C7/14—Lautering, i.e. clarifying wort
- C12C7/16—Lautering, i.e. clarifying wort by straining
- C12C7/165—Lautering, i.e. clarifying wort by straining in mash filters
Definitions
- the invention relates to a mash filter and a method for filtering mash according to the preambles of claims 1, 9 and 13.
- mash filter In beer production, the mash has to be filtered before further processing.
- lauter tuns or mash filters for example in the form of plate filters, are used for this purpose.
- a mash filter has several adjoining filter plates 4 in such a way that several filter chambers are arranged one behind the other, in which the mash is filtered, for example with the aid of filter elements (e.g. filter cloth).
- filter elements e.g. filter cloth
- the mash canal is usually a smooth (for example Ra between 0.2 pm and 20.0 pm), structureless bore, which runs through the filter plates from front to back.
- the more evenly the mash is stored over the length of the mash filter the more evenly the filter cake can be washed out in the respective chamber and the higher the extract gain.
- a decrease in the volume flow is determined by feeding the filter chambers arranged one behind the other, which is why the Fellerge speed in the mash channel decreases over the length of the mash filter. If the flow rate is slow enough, the result is a laminar flow. This leads to partial sedimentation and thus to segregation, which promotes inhomogeneous mash storage.
- Particle size analyzes of existing systems have shown that the demixing combined with the falling flow velocity means that different particle sizes can be measured from the first to the last chamber. Furthermore, the sedimenting particles lead to changes in cross-section. This requires a further change in the flow, which in turn promotes the inhomogeneity in the overall system.
- the feed line of the mash filter is usually also made through a pipe with a smooth inner surface (for example a roughness Ra between 0.2 ⁇ m and 20.0 ⁇ m).
- this supply line which leads from the mash vessel (e.g. mash tun) to the mash filter, has to be changed in height and direction by means of pipe bends. Centrifugal forces occur in these pipe bends. These centrifugal forces also lead to segregation, which can lead to inhomogeneous mash storage.
- the segregation through the centrifugal forces plays an important role in particular when the mash flow before storage in the Mash filter must be divided because the mash is stored in the mash filter from two sides, such as B. is shown in FIG. To do this, the mash must be on the way from the mash vessel to the mash filter, e.g. B. be divided into two streams. This split in the mash feed line takes place z. B. in a Y-piece. There is a risk here that if the mash is separated, it will not be possible to achieve a uniform suspension in the two adjoining pipe sections.
- FIG. 14 shows, roughly schematically, a feed line 2 with a pipe bend 3 and, above it, a feed line 2 without a pipe bend.
- a feed line 2 with a pipe bend 3 shows, above it, a feed line 2 without a pipe bend.
- the cross-section of the feed line 2 along the line l-l without a pipe bend shows, there is a homogeneous distribution of the solids here (i.e. the solids are evenly distributed over the entire pipe cross-section).
- FIG. 15 shows the feed line 2 shown in FIG. 14 with a pipe bend 3, wherein, as explained above, after the pipe bend 3 there is segregation, as can be seen in the cross section along the line III-III.
- the feed line 2 is then divided into two sub-lines 2a, 2b, in the same plane E1, in which the mash is also deflected by 90 ° via the pipe bend 3, there is a higher concentration of solids than in the sub-line 2a in sub-line 2b. This results in two inhomogeneous suspensions that are unevenly loaded with solids. If, for example, the mash is now filled from two sides of the mash filter, the result is inhomogeneous loading of the mash filter.
- the feed line 2 can be divided into two sub-lines 2a, 2b in a plane E2 which is perpendicular to plane E1 in which the May schistrom over the pipe bend 3 to z. B. is deflected 90 °.
- the suspension in the sub-lines 2a, 2b has at least the same total solids content, but the concentration is not homogeneous over the entire pipe cross-section of the sub-lines 2a, 2b.
- This solution also has the disadvantage that a corresponding installation, in particular with larger bending radii, leads to an increased space requirement for the pipes in the mash filter feed line.
- the present invention is based on the object of providing an improved mash filter and an improved method for filtering mash, which allow the mash to be stored evenly and homogeneously in the filter chambers of a plate filter in a simple manner.
- the mash filter according to the invention has a plurality of filter plates and a mash channel for supplying mash which extends through the filter plates.
- the filter chambers arranged one behind the other, viewed in the direction of flow of the mash, can be filled via the mash channel.
- the mash can therefore be fed to the respective unfiltrate space of the corresponding filter chambers via corresponding openings in the mash channel.
- the mash filter according to the invention has a static mixing device in the mash channel.
- a static mixing device is understood to be a mixing device with unmoved parts protruding into the mash flow, which can homogenize the mash by generating a turbulent flow.
- the static mixing device extends at least partially through the Maischekaal, preferably completely, and here ensures a turbulent flow and thus a thorough mixing. This also prevents partial sedimentation in the mash channel in such a way that the essentially homogeneous mash can be stored evenly in relation to the total mass as well as particle size and concentration from the first to the last chamber of the mash filter.
- the homogeneous storage has the following advantages: Creation of a homogeneous filter cake, in particular homogeneous filter cake height or homogeneous loading, avoidance of short circuits in individual filter chambers, ie there are no places where there is a filter cake height that is so low compared to the rest of the filter cake that the unfiltrate breaks through at these points, better cake washing results with higher yield, that is, more even flow through the entire filter plates. Overall, the filter process can thus be better controlled and the washout efficiency increased, since all filter chambers have comparable filter parameters if they are stored evenly and can therefore be flowed through evenly.
- the static mixing device can simultaneously or alternatively be arranged in a feed line to the mash filter.
- the suspension separated by partial sedimentation and / or centrifugal forces in a pipe bend can be homogenized again in the feed line. This allows the mash to be stored in the mash filter with a homogeneous distribution of solids. When the mash is then divided, it can be divided into two homogeneous subsets, regardless of whether the dividing plane is perpendicular to the deflecting plane or not.
- the static mixing device is tubular and has guide elements in the interior, it being advantageous if the Leitele elements protrude from the inner wall of the tube of the static mixing device into the inside of the tube.
- the guide elements have the function of flow breakers and can also be used to guide the flow. This creates a turbulent flow in such a way that the demixed suspension, i.e. the mash, can be re-homogenized.
- the static mixing device is advantageously designed as a swirl tube.
- the swirl tube can, for example, spiral circumferential elevations z. B. have grooves z. B. were embossed in the smooth tube outside.
- the mixing device can also be designed as a cross-twist tube, i.e. the cross-twist tube then crosses spiral-shaped circumferential elevations, e.g. B. has guide elements which are formed by grooves that were embossed in the smooth tube outside.
- twist tubes or cross twist tubes are that there is no blocking.
- a static mixing device which has, for example, cross plates in the interior of the pipe or is designed as a zigzag mixer, blocking by the solid content is possible.
- Pipes with a twist or cross-twist profile for example, cross-twist profile in the offset area or twist angle between 15 ° and 75 °, in particular 15 ° to 30 °
- At least one, in particular at least two or more spiral-shaped guide elements can extend inside the tube.
- a helix angle of 19 ° is possible.
- the twist depth can be, for example, 0.5-30 mm, depending on the pipe diameter, e.g. for diameters from 40mm to 300 mm.
- the helix depth is the depth of the spiral in the direction of the central axis.
- the feed line to the mash filter can be divided into two sub-lines.
- the static mixing device is arranged in an area in front of the division. Can do this
- a corresponding pipe section for example as a twisted pipe or cross-twisted pipe section, can be inserted into the feed line in front of the partition A. This results in good mixing and homogenization of the mash.
- the mixing device is at most 8 to 10 ⁇ d spaced apart from the division, preferably directly in front of the division, where d is the pipe diameter of a pipe in front of the division A. This enables a particularly even division.
- the plate filter has at least one inlet which opens into the mash channel in the mash filter.
- a static mixing device is advantageously arranged in front of the inlet, in particular at most 8 to 10 ⁇ d, at a distance from the inlet, preferably arranged directly in front of the inlet, where d is the diameter of the inlet line. If the mixing device is too far away, the vortices generated could dissolve again and an essentially laminar flow develop.
- the inlet is defined here in such a way that it is arranged at the beginning of the mash channel of the first plate.
- An inlet connection arranged on the mash filter can result in a distance between the inlet and the mixing device.
- the inlet connection can also be formed as a mixing device. This results in good mixing directly before the enema. A corresponding measure may be easier to implement than providing a mixing device in the mash channel.
- static mixing devices can also be arranged at a distance from one another, for example in the form of corresponding pipe sections in the feed line to the mash filter. This means that it is not necessary to design the entire feed line as a static mixing device, but rather to provide the static mixing device in the critical areas, that is, before the division into partial lines and / or immediately before the inlet into the mash channel and / or after one or several elbows.
- the mash channel is formed by openings in successive filter plates.
- the openings can already be formed in the plastic filter plates when casting the filter plates or can also be implemented later, for example, through a hole.
- At least part of this mash channel is designed according to a preferred embodiment in such a way that the static mixing device is integrated in the openings, the inner surface of the tubular openings preferably having the guide elements.
- the guide elements or profiles can already be incorporated when the panels are manufactured, for example cast at the same time, but can be produced by subsequent processing.
- the static mixing device comprises sockets which are respectively inserted into the openings, the sockets then having corresponding guide elements or profiles.
- the bushes can then be attached, for example welded, screwed or glued.
- the provision of corresponding sockets is particularly simple and also enables existing mash filters to be retrofitted. If several fixed sockets are provided, this has the advantage that the filter plates can still be moved apart to empty the filter chambers.
- the diameter of the mash channel from the inlet in particular continuously decreasing, the diameter decreases over the entire length of the mash channel with a one-sided filling from the inlet and with a filling from two sides the diameter of the two inlets to the center of the plate filter decreases. If the mash channel tapers continuously, in particular conically or exponentially, in the direction of flow, the flow velocity can be adjusted across the diameter as the volume flow decreases. This enables the filter chambers of the mash filter to be evenly filled. It is therefore possible that the flow velocity does not decrease significantly when the volume flow decreases, which favors a turbulent flow.
- mash is passed via an inlet line to an inlet of a mash channel which extends through filter plates arranged one behind the other.
- the mash is passed into filter chambers arranged one behind the other and filtered there.
- a filter chamber comprises an unfiltrate space, a filter element (e.g. filter cloth) and a filtrate space.
- the filtrate, i.e. wort is then drained off via a drain.
- the mash is mixed in the mash channel and / or in the feed line to the mash filter.
- the mash can flow in the feed line through a pipe bend, whereby the May Sche segregates, which is then mixed, that is, by means of the static mixing device and homogenized again.
- the mash is preferably mixed before the mash flow is divided into two mash flows in the feed line so that the solids are distributed as evenly as possible in the partial flows.
- the mash is preferably mixed and homogenized before it flows into the mash channel, which is particularly advantageous because then partial sedimentation due to a laminar flow in the mash channel can be largely prevented.
- the invention also relates to a mash filter with a plurality of filter plates and a mash channel for supplying mash, which extends through the filter plates, the diameter of the mash channel from the inlet, in particular continuously decreasing, with the diameter preferably in front of a one-sided filling from the inlet decreases over the entire length of the mash channel and when filling from two sides the diameter of both inlets decreases towards the center of the plate filter.
- the design of the mash channel with a decreasing diameter corresponds to the function of the static mixing device.
- the mash channel can be formed by openings in successive filter plates, with sockets inserted in the openings, each of which has through openings with different diameters (and different volumes), with the diameter at the inlet of the through opening of the socket preferably being larger than at the outlet , in particular continuously decreasing.
- the mash then flows through the jacks.
- sockets also enable existing plate filters to be retrofitted. The sockets can simply be plugged into the mash channel and fastened.
- FIG. 1 shows schematically an embodiment with a static mixing device in a feed line according to an embodiment of the present invention
- Fig. 2 shows schematically an embodiment with a static mixing device in a feed line according to a further embodiment of the present invention
- FIG 3 shows a mash filter with a static mixing device according to a further exemplary embodiment of the present invention.
- FIG. 4 shows a mash filter with a static mixing device according to a further exemplary embodiment of the present invention.
- FIG. 5 shows a mash filter with a static mixing device according to a further exemplary embodiment of the present invention.
- FIG. 6 shows a mash filter with a static mixing device according to a further exemplary embodiment of the present invention.
- FIG. 7 shows a mash filter with a conically tapering mash channel according to a further embodiment of the present invention.
- FIG. 8 shows a mash filter with a tapered mash channel according to a further embodiment of the present invention.
- FIGS. 7 and 8 show a mash filter corresponding to FIGS. 7 and 8 with an inlet in two directions
- Fig. 10 shows schematically a socket for the mash channel according to a further Ausry approximately example of the present invention
- Fig. 11 shows schematically a socket for the mash channel according to a further Ausry approximately example of the present invention.
- Fig. 12 shows schematically a socket for the mash channel according to a further Ausry approximately example of the present invention
- Fig. 13a shows roughly schematically a twist tube and a cross twist tube according to an exemplary embodiment of the invention.
- Fig. 13b shows roughly schematically the twist angle of a cross twist tube
- Fig. 1 shows schematically an embodiment of the present invention, in which a static cal mixing device 8 is arranged in a feed line 2 to a mash filter 1.
- FIG. 17 and 18 show an example of a corresponding mash filter. It is known that corresponding mash filters 1 have a plurality of filter plates 4 which are net angeord one behind the other. The filter plates form filter chambers, each with an unfiltrate space, a filtrate space and intermediate filter elements, for. B. filter cloths through which the mash can be fil trated and wort can be derived as a filtrate. Via the inlet 7 and the mash channel 5, which extends through the filter plates 4, mash is fed to the unfiltrate spaces via corresponding openings in the mash channel 5.
- FIG. 18 corresponds to FIG. 17, here shows an embodiment in which the mash can be fed to the mash filter 1 from two sides. If mash is fed in from two sides, for example, the feed line 2 must be divided up in order to then feed the mash to the corresponding inlet 7a, 7b via the partial lines 2a, 2b (see FIG. 1).
- FIG. 1 shows that an inlet line 2 is initially deflected in a plane E1 by 90 °, here for example vertically over the pipe bend 3.
- the centrifugal forces result in partial segregation, so that the solids concentration, as the section along line II shows, is not evenly distributed over the cross section.
- the static mixing device 8 is therefore arranged, which is designed in such a way that a turbulent flow of the mash results and thus a thorough mixing and homogenization of the mash in such a way that there is a homogeneous distribution of solids in the Sub-lines 2a and 2b come and thus mash with the same solids concentration can be fed to a mash filter from two sides.
- the mixing device 8 directly adjoins the dividing point A, which is particularly advantageous.
- the division can be made using a Y-piece or a sheet metal in the pipeline, which divides the flow into two partial flows, which are routed in two parallel lines. It is also possible that several divisions are provided one behind the other in order to generate more than two partial flows. It is also possible, for example, that there are several supply lines and several inlets.
- the static mixing device 8 is tubular, here as a tubular section which is inserted into the feed line 2.
- the static mixing device 8 can, for example, have inner guide elements 6 (see FIG. 13) which protrude from the inner wall of the pipe into the pipe interior, that is, serve as a flow breaker or can also divert the mash flow.
- the guide elements 6 can be designed in a spiral shape such that a swirl tube results, the guide elements 6 of which extend essentially in a spiral shape, as roughly schematically shown in FIG.
- the mixing device 8 can also be designed in the form of a cross-twist tube in which helically arranged guide elements 6 cross, as can be seen in particular from the illustration on the right in FIG. 13a.
- the cross-twist tubes are particularly suitable for mixing and homogenizing the mash sufficiently. With a corresponding embodiment, there is also no risk of blocking.
- 13b illustrates the twist angle ⁇ between a perpendicular to the central axis L and a projection of the spiral into a plane that is spanned by the central axis L and the perpendicular.
- cross twist profiles are suitable, for example in the offset area or twist angle between 15 ° and 75 °, in particular 15 ° to 30 °.
- the guide elements 6 can be placed on the inner surface of the pipe or formed as projections on the inside of the pipe, e.g. as spiral-shaped circumferential grooves that are stamped into the outside of the smooth pipe.
- twist tubes according to DIN 28178 for example, are also suitable.
- the mash flow is divided into two partial flows in the same level E1, in which the mash flow is also diverted.
- FIG. 2 shows a further embodiment according to the present invention, which corresponds to the embodiment shown in FIG two partial flows in the partial lines 2a, 2b is divided, in a plane E2 which is perpendicular to the plane E1.
- the static mixing device 8 is provided in front of the partition A, which homogenizes the flow of May and ensures that there is a homogeneous particle distribution in the sub-lines 2a, 2b, and in particular the particle concentration in the sub-lines 2a, 2b is the same.
- a static mixing device 8 as described above, is provided in front of the inlet 7, as shown in FIG. 3.
- the static mixing device 8 allows partial sedimentations that have taken place in the feed line 2 to be rehomogenized, so that in the mash filter 1 the mash can be more homogeneously stored in the individual chambers via the mash channel 5. It is then also possible, for example, to use a mash channel 5 with a smooth passage.
- a mash filter 1 with two inlets 7a, 7b on both sides can have the mixing device 8 shown in connection with FIG.
- FIG. 4 shows a further exemplary embodiment according to the present invention, the feed line 2 having a plurality of pipe bends 3, here two pipe bends 3.
- a first static mixing device 8 is provided behind the first pipe bend 3 for re-homogenization.
- a further static mixing device 8 is also provided directly in front of the inlet 7, adjacent to the inlet connection 17.
- the most important point for a static mixing device 8 is the area in front of the inlet 7 or the inlets 7a, 7b into the mash filter 1.
- FIG. 5 shows a further embodiment according to the present invention.
- a static mixing device 8 can also be arranged in the mash channel 5.
- the entire mash channel 5, which extends through the filter plates 4, is designed as a static mixing device 8.
- an inlet connection 17 can be attached to the mash filter 1, which is then connected to the inlet line 2.
- This inlet connection 17 can also be designed as a mixing device 8, as has been described above, as is shown in FIG. 5, for example.
- the mash channel 5, which adjoins the inlet 7, can be formed by openings 10 in successive filter plates 4, wherein the static mixing device 8 can be integrated in the openings 10, i.e. in the filter plates 4. Then, for example, the inner surface of the tubular opening 10 in the filter plate 4 has a corresponding guide element 6, so that a turbulent flow is generated.
- FIG. 10 shows, for example, a corresponding filter plate 4 and schematically filter elements 16 and membrane 12, which limit the space of the press medium 11 and unfiltrate space 15, such as is well known and is not explained in more detail here.
- the sockets then delimit the mash channel 5.
- the sockets 9 are made, for example, of sheet metal or plastic. No guiding elements are shown in FIG.
- the retrofittable sockets 9 can be inserted and fastened, for example by gluing or welding or screwing, etc. Under di is to be understood as the larger inner diameter of the conical socket 9, under d2 is the smaller inner diameter of the conical socket 9.
- a corresponding socket 9 is inserted in each Plate 4 .
- the mixing device 8 integrated in the sockets 9 is constructed and used as in connection with the previous exemplary embodiments in order to generate a turbulent flow, in particular by means of guide elements 6, for example, the bushing is then designed as a twist tube or cross twist tubes.
- Figure 6 corresponds to the embodiment shown in Figure 5 with the exception that the mash channel 5 of inlet 7 of d (for B 20. - 300mm) of a diameter.
- the flow velocity can be adjusted over the diameter as the volume flow decreases, as will be described in detail below in connection with FIGS. 7 and 8. This results in a more homogeneous filling overall. If the mash filter 1 is filled from two sides 7a, 7b, the diameter of both inlets 7a, 7b can decrease towards the center of the plate filter 1.
- FIG. 7 shows another embodiment which can be designed accordingly independently of the embodiments shown in connection with FIGS. 1 to 6.
- This embodiment relates to a mash filter 1 which also enables uniform filling of individual filter chambers, the tapering mash channel 5 contributing to homogenization, i.e. serving as a mixing device 8 in which the flow rate is increased by decreasing the cross section, as will be explained in more detail below .
- the feed lines 2 and the mash channel 5 for the mash filter are usually out of the same, constant diameter (for example DN 50 to DN 150). This means that over the mash channel length of e.g. up to 20 meters due to flow pressure losses and a decrease in the mash volume flow from filter chamber to filter chamber, an uneven pressure, usually falling from front to back, is available for filling the filter chambers.
- the chambers in the prior art have an uneven filling level from the first to the last plate.
- Another influence on the uneven filling level is a changed volume flow over the entire length of the mash channel.
- a partial volume flow is taken per filter chamber, which is no longer available in the total volume flow. If the diameter remains the same, this reduces the flow velocity, which is decisive for the further course of the flow. With a reduced flow rate, partial sedimentation can also occur.
- v a V em / A
- the diameter d a decreases along the flow direction to d m (diameter of the inlet of the last plate - here the minimum diameter), for example from 20 to 300 mm to 10 to 100 mm.
- the maximum number of plates used is m.
- V flow velocity
- V em flow velocity at the inlet
- V volume flow
- in inlet
- A cross-sectional area of the mash channel
- V chamber volume flow that is fed to a filter chamber
- d diameter of the mash channel
- n number of plates.
- the mash channel 5 can be manufactured and adapted individually for each filter plate 4.
- the plates 4 must be reworked accordingly in the manufacturer's factory.
- the retrofitted area is marked by hatching.
- the advantage of the bushings 9 is not only that they can be retrofitted, but also that the diameter can be corrected afterwards in the event of a change in the process, change in the viscosity of the mash or the flow velocities, etc.
- FIG. 9 corresponds to the exemplary embodiment shown in FIGS. 7 and 8, a mash filter 1 being shown here, in which mash is supplied from both sides.
- FIG. 10 shows details of the retrofittable socket 9. So that the sockets do not fall out when the mash filter is opened to remove the filter cake, the sockets 9 must preferably be fastened.
- FIG. 11 shows, for example, the fastening of the socket 9 by means of a PP (polypropylene) weld seam 13.
- mash is fed via a supply line 2 to the mash filter 1 via an inlet 7, 7a, 7b and passed into the mash channel 5 and the mash is thus introduced into filter chambers arranged one behind the other and filtered.
- the filtrate in the form of wort is discharged.
- the mash Before it flows into the mash filter 1 via the at least one inlet 7, 7a, 7b, the mash is homogenized via at least one static mixing device 8.
- the mash has a homogeneous distribution of solids across the cross-section when it enters the mash filter 1. If there are several inlets 7a, 7b, the mash has the same solids content in each case.
- the mash is mixed in the mash channel 5 via a static mixing device 8 which is integrated in the mash channel 5, so that the mash is evenly introduced into the filter chambers.
- the diameter or the cross-sectional area of the May schekanals 5 decrease in the flow direction of the mash, such that the flow rate can be kept high in order to promote a turbulent flow.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
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- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020208124.7A DE102020208124A1 (de) | 2020-06-30 | 2020-06-30 | Maischefilter und verfahren mit statischer mischeinreichung |
| PCT/EP2021/067444 WO2022002767A1 (de) | 2020-06-30 | 2021-06-25 | Maischefilter und verfahren mit statischer mischeinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4171779A1 true EP4171779A1 (de) | 2023-05-03 |
Family
ID=76708229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21736298.7A Withdrawn EP4171779A1 (de) | 2020-06-30 | 2021-06-25 | Maischefilter und verfahren mit statischer mischeinrichtung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4171779A1 (de) |
| CN (1) | CN220609233U (de) |
| DE (1) | DE102020208124A1 (de) |
| WO (1) | WO2022002767A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3617519A1 (de) * | 1986-05-24 | 1987-11-26 | Seitz Enzinger Noll Masch | Zwei- oder mehrstufiges verfahren zum entfernen von verunreinigungen aus stillen oder kohlensaeurehaltigen fluessigkeiten, insbesondere getraenken, sowie vorrichtung zu dessen durchfuehrung |
| DE102017215930A1 (de) | 2017-09-08 | 2019-03-14 | Krones Aktiengesellschaft | Vorrichtung und Verfahren zum Maischen und Filtrieren für die Bierherstellung |
| DE102018209357A1 (de) * | 2018-06-12 | 2019-12-12 | Krones Ag | Verfahren und Vorrichtung zur Behandlung von Maische |
-
2020
- 2020-06-30 DE DE102020208124.7A patent/DE102020208124A1/de active Pending
-
2021
- 2021-06-25 WO PCT/EP2021/067444 patent/WO2022002767A1/de not_active Ceased
- 2021-06-25 CN CN202190000583.1U patent/CN220609233U/zh active Active
- 2021-06-25 EP EP21736298.7A patent/EP4171779A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020208124A1 (de) | 2021-12-30 |
| WO2022002767A1 (de) | 2022-01-06 |
| CN220609233U (zh) | 2024-03-19 |
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