WO2022117169A1 - Kristallisationsvorrichtung zum kristallisieren eines vorproduktes und trocknungsvorrichtung - Google Patents
Kristallisationsvorrichtung zum kristallisieren eines vorproduktes und trocknungsvorrichtung Download PDFInfo
- Publication number
- WO2022117169A1 WO2022117169A1 PCT/DE2021/200231 DE2021200231W WO2022117169A1 WO 2022117169 A1 WO2022117169 A1 WO 2022117169A1 DE 2021200231 W DE2021200231 W DE 2021200231W WO 2022117169 A1 WO2022117169 A1 WO 2022117169A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crystallization
- receiving unit
- rotatable receiving
- rotatable
- ring
- Prior art date
Links
- 238000002425 crystallisation Methods 0.000 title claims abstract description 110
- 230000008025 crystallization Effects 0.000 title claims abstract description 110
- 238000001035 drying Methods 0.000 title claims abstract description 24
- 239000002243 precursor Substances 0.000 title abstract description 10
- 239000007921 spray Substances 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 description 52
- 239000013078 crystal Substances 0.000 description 20
- 108010046377 Whey Proteins Proteins 0.000 description 16
- 102000007544 Whey Proteins Human genes 0.000 description 16
- 239000012466 permeate Substances 0.000 description 16
- 239000005862 Whey Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- GUBGYTABKSRVRQ-DCSYEGIMSA-N Beta-Lactose Chemical compound OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-DCSYEGIMSA-N 0.000 description 6
- 229930195724 β-lactose Natural products 0.000 description 6
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 5
- 235000013305 food Nutrition 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 229930195727 α-lactose Natural products 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241001012508 Carpiodes cyprinus Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011549 crystallization solution Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 235000021119 whey protein Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K5/00—Lactose
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/10—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
- F26B3/12—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0063—Control or regulation
Definitions
- the invention relates to a crystallization device for crystallizing a preliminary product , the crystallization device having an inlet for receiving the preliminary product , a rotary drive and a rotatable receiving unit . Furthermore, the invention relates to a drying device, in particular a spray tower, for drying an item to be dried to form a pre-dried product and/or for post-drying a crystallized product.
- the substance to be crystallized can in principle be fed to a crystallizer as a liquid, melt and/or as a solid.
- a crystal layer in a crystallizer arises primarily when the substance to be crystallized wets and/or covers a surface of the crystallizer that is usually cooler.
- whey permeate is used in the confectionery industry .
- the whey permeate is produced during the manufacture of whey protein concentrates from whey from cheese production.
- the liquid that was left over Whey permeate is concentrated, dried and crystallized.
- Whey permeate usually contains 44 to 50 g/1 a-lactose.
- ⁇ -lactose is converted into the desired ß-lactose crystals in a crystallizer and then a secondary drying and cooling process can follow.
- a crystallization belt conveyor is known, for example.
- the crystallization belt conveyor is designed with an electric geared motor drive and a tensioning system for the belt guide.
- the belt itself is constructed in an open weave manner to allow cleaning through the weave of the belt. Nevertheless, the fabric of the belt is easily colonized by microorganisms and consequently there is a risk of insufficient or even non-existent hygiene during CIP (clean in place) cleaning. Due to the hygiene requirements, especially in the food industry and pharmaceutical industry, the possible use of such a crystallizer is limited.
- the large amount of space required due to the linear conveying section of the crystallization belt conveyor is disadvantageous .
- the crystallization belt conveyor is set up at an incline so that a correspondingly large amount of installation space is required not only in the direction of conveyance, but also in terms of height.
- Crystallization of PET Masterbatches from 07/27/2012 describes an infrared rotary tube in a crystallization and drying plant for PET granules and regrind.
- DE 21 57 267 A3 also discloses a closed crystallizer in the form of a rotatable tank for precipitating metal salts from a mineral column.
- DE 100 47 162 A1 describes a closed crystallization or precipitation apparatus with a rotary tube and an at least partially microstructured, self-cleaning surface.
- DE 101 49 814 A1 discloses a device for producing crystals, in which an essentially cylindrical crystallization container for receiving a solution has a coaxial, rotatable, essentially cylindrical inner part forming a radial annular space, in which Annulus the flow profile of a Couette flow
- DE 21 2020 000 057 U1 also discloses a closed crystallization device with an outer heat-insulating cylinder and an inner, rotatable heat-conducting cylinder, with a pressure plate inside the heat-conducting cylinder being used to move the crystals in the direction of a round hole and carry out .
- a disadvantage of such closed, rotating crystallization devices is that at the same time there is always a mixing of the crystallizing precursor occurs and thus the precursor is always present in different crystallization stages.
- the object of the invention is to improve the prior art .
- the object is achieved by a crystallization device for crystallizing a preliminary product, wherein the crystallization device has an inlet for receiving the preliminary product, a rotary drive and a rotatable receiving unit, and the rotatable receiving unit has a circular and/or ring-shaped surface for crystallizing on its upper side has, so that when the rotatable receiving unit rotates, the received preliminary product can be recrystallized in a defined manner on the circular and/or ring-shaped surface of the rotatable receiving unit and can be discharged as a crystallized product.
- the preliminary product to be crystallized can be applied directly to the surface of the rotatable receptacle through its inlet , without the need for a conveying device .
- the pre-dried powder from the spray tower or from another aggregate of another pre-treatment process falls onto the upper surface of the rotatable receiving unit.
- the precursor to be crystallized after application to the Circular and/or ring-shaped surface of the rotatable receiving unit is no longer mixed, but is constantly crystallized in a fixed position on the circular and/or ring-shaped surface during the rotation of the receiving unit and thus the circular and/or ring-shaped surface and thus under defined conditions . Consequently, by means of the circular and/or ring-shaped surface of the rotatable receiving unit, a rotating receiving and/or resting band is provided for defined crystallization and conversion of one crystal modification into another crystal modification. In addition, a high quality of the crystallized product is obtained through the defined crystallization with defined crystallization conditions in a circular movement. In the case of the crystallization of whey permeate powder in the crystallization device, a high degree of conversion of ⁇ -lactose into the desired ⁇ -lactose crystals is achieved and these are obtained in a high purity.
- An essential idea of the invention is that the upper, circular and/or ring-shaped surface for crystallization is not to be allowed to undergo a linear movement, but rather to use a rotary movement of the rotatable receiving unit in a compact design. Due to the homogeneous application of the preliminary product to be crystallized and taken up without mixing, a defined crystallization and a defined residence time is made possible by a circular movement of the upper surface of the receiving unit. Due to the fact that the preliminary product to be crystallized is only If, in particular, a smooth surface is applied to the rotatable receiving unit, it is easy to clean and all the requirements for CIP cleaning, for example in the food and pharmaceutical industries, can be met without great effort.
- the circular and / or ring - shaped surface of the rotatable receiving unit is present at least partially or completely as a free surface .
- no further components are arranged or absolutely necessary, which could come into contact with the crystallizing preliminary product during crystallization.
- other units such as conveyor units or a belt tensioner, apart from the rotatable receiving unit itself and the associated rotary drive, are not absolutely necessary for operation.
- a crystallization device that is compact in construction, inexpensive to produce and hygienically easy to clean is thus provided.
- the crystallization device can also be configured in reverse with regard to rotation, so that instead of a rotatable receiving unit, the receiving unit is fixed and/or stationary and instead the inlet, a discharge and/or a removal device moves in a circular manner. In this case, the rotary drive is therefore assigned to the inlet, outlet and/or the removal device.
- a "crystallization device” is in particular a device with which the physical process of crystallization and thus hardening, formation and/or growth of crystals takes place. Crystallization takes place in and/or on the crystallization device, in particular in an accelerated manner. During crystallization, crystals are formed in particular in a solution, a melt, an amorphous solid and/or by recrystallization from other crystals.
- a "preliminary product” is understood in particular as an intermediate product in the course of a physical and/or chemical processing and/or reaction to form a salable product, in particular a crystallized product.
- any solid substance such as a bulk material or powder can be used.
- the precursor can also be produced in various branches of industry, such as the food industry, basic chemicals or the pharmaceutical industry.
- the precursor is in particular non-hygroscopic permeate, such as whey permeate powder. In the case of concentrated and dried Whey permeate as a preliminary product, this is then subjected to a conversion from ⁇ -lactose to ⁇ -lactose and crystallization in the crystallization device.
- An "inlet” is in particular a component with which the precursor to be crystallized on the Top of the circular and / or ring-shaped surface of the rotatable receiving unit is applied.
- the inlet is arranged in particular above the circular and/or ring-shaped surface of the receiving unit, so that the preliminary product to be crystallized falls directly onto the circular and/or ring-shaped surface and/or can be applied to it.
- An inlet can be, for example, a feed pipe from a spray dryer.
- a "receiving unit” is in particular a unit of the crystallization device which receives the preliminary product coming from the inlet.
- the receiving unit has a circular and/or ring-shaped surface in particular on its upper side, to which the preliminary product to be crystallized is applied for crystallization and dwells during the rotation.
- the receiving unit can, for example, have the shape of a disk or a ring.
- the receiving unit and/or its surface can optionally be cooled, heated and/or conditioned in some other way.
- the crystallization device and/or the receiving unit is used in particular in continuous operation operated .
- a "circular surface” is understood in particular to mean a surface of the receiving unit which has the shape of a circle when viewed from above.
- An “annular surface” is understood in particular to be a surface which has the shape of a ring when viewed from above.
- An annular surface is in particular a circular ring and thus the area between two concentric circles with a common center.
- the surface on the upper side of the receiving unit can also be formed by a first inner circular surface and a second annular surface arranged around it on the outside.
- a “rotational drive” is understood in particular to mean a drive which imparts a rotational movement to the rotatable receiving unit.
- the rotational drive is in particular a prime mover, such as a motor. which converts three-phase current into mechanical rotation.
- the rotatable receiving unit can be driven via its outer side edge, its outer underside and/or via a central axis of rotation by means of the rotary drive.
- a drive on the outside diameter of the receiving unit designed as a disk or ring is advantageous, particularly in the case of large diameters of the disk or ring. This can be done, for example, via a motor with a rack and rollers.
- a driven central axis is advantageous, for example via a geared motor and
- the term “recrystallizable in a defined manner” is understood in particular to mean that defined crystallization conditions for recrystallizing the preliminary product to be crystallized from one crystal form into another desired crystal form and / or a certain purity of a crystal form is realized.
- the defined crystallization and/or recrystallization is achieved in particular by the preproduct taken up resting on the upper surface of the receiving unit without mixing the preproduct and/or the crystals forming and the defined residence time due to the rotation of the receiving unit.
- the rotatable receiving unit is designed as a disk and / or as a ring .
- the rotatable receiving unit is designed as a single disk and/or as a ring, each of which has a sufficiently large diameter so that the preliminary product that crystallizes out and/or recrystallizes without further components, in particular walls or a housing, on the top surface of the disc and/or ring during the
- a "disk” is understood in particular to mean a geometric body in the form of a cylinder whose radius is many times greater than its thickness. A disk can also be a plate.
- a "ring” is, in particular, a geometric body in which the area between two concentric circles has a greater dimension than its thickness in the vertical direction.
- the disc can, for example, have an outer diameter of 0.5 m to 6.5 m, preferably in a range of 4.0 m to 5.5 m.
- the mass flow of crystallized product is, for example, in a range from 0.5 t/h to 8 t/h, preferably from 3 t/h to 5 t/h.
- the temperature in the crystallizer can be, for example, in a range from 10°C to 90°C.
- the disk and/or the ring are preferably made of a dimensionally stable material. This can be, for example, welded stainless steel or food grade plastic.
- the surface of the disk and/or the ring is or are in particular designed to be very smooth, so that the crystallized pre-product can be easily removed, cannot adhere to a surface structure of the surface and can make cleaning more difficult.
- the rotatable Recording unit an outer boundary wall, an inner boundary wall, a cover and / or a housing.
- the rotatable receiving unit , disc and / or the ring can have an outer boundary wall on the outside diameter and an inner boundary wall all around at a distance from the center of the disc or the ring .
- a crystallization space open at the top is formed between the outer boundary wall and the inner boundary wall.
- the receiving unit, disc and/or the ring can have a cover resting on the boundary walls or an enclosing housing. The covered outer boundary wall and the inner boundary wall thus form an annular chamber for the crystallization. This provides conditioned conditions for crystallization and enables in-flow purification in a largely closed housing.
- the upper surface of the receiving unit can be freely accessible and/or open in the area of the inlet, so that the preliminary product to be crystallized can fall and/or be applied directly from the inlet onto the upper surface.
- the crystallization device has a second rotatable receiving unit, a third rotatable receiving unit and/or further rotatable receiving units, the respective rotatable receiving units being arranged next to one another and/or one behind the other.
- the crystallization and / or transformation can be distributed over several rotatable receiving units and thus over several rotatable upper surfaces .
- the crystallization processes can in particular be specifically set in each case and/or take place in stages one after the other.
- a parallel and/or series-connected arrangement is understood to mean, in particular, the process engineering arrangement of the receiving units.
- the receiving units can also be arranged one above the other to save space.
- the at least partially crystallized preliminary product and / or product accordingly falls directly onto the rotatable receiving unit of the subsequent stage .
- This parallel and/or series connection of rotatable receiving units is particularly advantageous when very high crystallization capacities are required, since very large diameters of the disc and/or ring can only be increased with increasing effort.
- the disk can be supported from below by a counter bearing, for example a subframe with rollers, in order to ensure that the surface of the disk or the ring is aligned horizontally.
- a "second, third and/or further rotatable recording unit” is in principle a recording unit as defined above in terms of function and structure.
- the recording units can each have different surface dimensions, rotational speeds and/or other different geometric parameters and/or have operating parameters.
- the crystallization device has a distribution device for distributing the primary product taken on the circular and/or ring-shaped surface of the rotatable
- Acquisition unit the j respective rotatable acquisition unit or the acquisition units.
- the distributor device for homogeneously distributing the received preliminary product on the surface of the rotatable receiving unit can be arranged in the outlet of an upstream unit , such as a drying tower , and / or in the inlet of the crystallization device .
- the pre-product to be crystallized can be distributed homogeneously by a specific geometric arrangement of baffles and/or perforated plates and/or by using a cutter at the point at which it is fed.
- the crystallization device can have a single rotary drive, so that all rotatable receiving units can be operated at the same speed.
- the rotary drive can also be assigned different transmission gears for the respective rotatable receiving unit, so that the respective rotatable receiving units can have different speeds.
- the respective receiving units can also each have their own rotary drive, or two or more rotary drives are each assigned to two or more receiving units.
- the speed is preferably in a range from one revolution per hour to 10 revolutions per hour .
- the rotational speed of the rotatable receiving unit is three revolutions per hour.
- a relatively low speed and thus relatively slow rotational movement is preferably used for the crystallization.
- rotatable recording units can be installed in the Crystallization device are used.
- an increase in the crystallization capacity can be achieved by increasing the number of rotatable receiving units.
- the rotatable receiving units can be arranged and interconnected in parallel and/or one after the other in order to provide the required longer residence time and/or higher crystallization capacity and thus the desired product mass flow.
- the crystallization device has a control and/or regulating device so that a crystallization time can be set via the speed of the rotatable receiving unit by means of the rotary drive.
- a crystallization and / or conversion time can be specifically set via the rotational speed of the rotatable receiving unit or the respective receiving unit by means of the rotary drive and / or the control and regulation device .
- the preliminary product to be crystallized is continuously poured in place onto the surface of the disc or the ring via the inlet. It is particularly advantageous that the necessary crystallization time is reached and the crystallized product is present after essentially one revolution of the disc or ring.
- the disc and/or the ring rotates, for example, through 359°. This can be realized in that fixed between the location Inlet of the crystallization device and a removal device there is an angle in a range from 340° to 360°.
- a "control device” is understood in particular to mean a device which sets a predetermined value.
- a “regulating device” is understood in particular to mean a device which feeds back a measured value and sets a control value in each case. The optimum crystallization time and/or conversion time of the individual rotatable receiving units can thus be set and/or regulated by means of the control and/or regulating device.
- the crystallization device has a removal device, in particular a discharge screw, for removing the crystallized product from the circular and/or ring-shaped surface of the rotatable receiving unit and/or the rotatable receiving units.
- a discharge screw or a scraper can be used as a removal device .
- a pusher can also be used and/or the crystals formed can be discharged by means of blowing off and/or suction.
- the removal device is set up in particular in such a way that the crystals are completely removed from the surface and/or from the annular chamber and, in the case of the boundary walls, do not remain on the edges. As a result, colonization with microorganisms is made more difficult and efficient CIP cleaning is possible.
- a wet and/or dry automatic cleaning station must be integrated between the discharge and inlet in order to avoid mixing of the preliminary product and the crystallized product as well as between batches and to eliminate the emergence of hygienic weak points.
- the removal device is arranged in such a way that between the inlet and the removal device there is an angle in a range from 300° to 360°, in particular from 340° to 360° , is present on the circular and / or annular surface.
- the crystallization device has an air supply device for overflowing the received and / or distributed preliminary product on the surface .
- the crystallization process can be promoted and/or the crystallized product can be further conditioned.
- the object is achieved by a drying device, in particular a spray tower, for drying an item to be dried to form a pre-dried product and/or for post-drying a crystallized product, the drying device having a crystallization device as described above.
- a drying device which, for example, to dry a material to be dried, such as liquid whey permeate, to a pre-dried Product, such as solid whey permeate powder, and / or for drying a crystallized product can be used.
- the crystallization device can be either upstream or downstream of the drying device.
- the drying device has an open outlet for discharging the pre - dried product , through which the pre - dried product falls directly onto the top of the disc and / or ring through the inlet of the crystallizer arranged below . After the drying device and the crystallization device, a transfer can then follow to a secondary further drying and cooling.
- the crystallization device can be used after secondary drying, for example after a fluidized bed, which is downstream of a spray tower.
- the crystallization device with, for example, the rotatable disk can be connected both to a spray tower with an open, lower outlet and to a spray tower with a downstream external fluidized bed. In this case, only the bearing point of the pane is shifted relative to the central axis of the spray tower.
- Figure 1 is a schematic representation of a
- a crystallization rotor 101 has a
- Crystallization disk 103 on .
- the crystallization disk 103 is rotatably mounted via a rotation axis 115 and can be driven via a disk drive 113 .
- the crystallization disc 103 is surrounded by a housing 105 which has an outer wall 107 .
- an inner wall 109 is arranged above the crystallization disk 103 within the housing 105 , as a result of which an annular chamber 111 is formed.
- the annular chamber 111 runs all the way around the axis of rotation 115 at 360° in the outer area of the crystallization disk 103 .
- An inlet 119 is arranged at a fixed position in this outer area, which is connected to a spray tower outlet 203 of a spray tower 201 arranged above (only the lower part of the spray tower 201 is shown in FIG. 1).
- the inlet 119 leads down into the annular chamber 111, being spaced from the inlet 119 and thus the spray tower outlet 203 by an angular distance of 5°
- Discharge screw 117 is located above the top surface of crystallization disc 103 .
- a liquid whey permeate is first conventionally pre-dried in the spray tower 201 to form whey permeate powder and continuously enters the inlet 119 of the crystallization rotor 101 via the spray tower outlet 203 .
- the whey permeate powder falling through the inlet 119 is distributed evenly over the distributor plates (not shown) and a cutter onto the upper surface of the rotating crystallization disk 103, which rotates counterclockwise at a speed of five revolutions per hour (see Figure 2). turns .
- the whey permeate powder applied through the spray tower outlet 203 and the inlet 119 arranged below it onto the surface of the crystallization disk 103 in the annular chamber 111 thus each time performs a uniform rotation of 355° during the crystallization and conversion until it reaches the discharge screw 117 and by means of the discharge screw 117, the whey permeate crystals with a high ß-lactose content due to the optimal conversion of a-lactose into ß-lactose crystals are discharged by means of the discharge screw 117 via the discharge 121 from the crystallization rotor 101.
- a very compact crystallization rotor 101 which has a very smooth surface due to its execution in stainless steel, whereby an unwanted accumulation of the crystals is prevented, a targeted conversion into ß-lactose and a easy cleaning of the crystallization disc 103 is made possible.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Dairy Products (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3200460A CA3200460A1 (en) | 2020-12-02 | 2021-12-01 | Crystallization apparatus for the crystallization of a preliminary product, and drying apparatus |
DE112021006285.9T DE112021006285A5 (de) | 2020-12-02 | 2021-12-01 | Kristallisationsvorrichtung zum Kristallisieren eines Vorproduktes und Trocknungsvorrichtung |
US18/039,718 US20240018612A1 (en) | 2020-12-02 | 2021-12-01 | Crystallization device for crystallizing a precursor, and drying device |
EP21865323.6A EP4255600A1 (de) | 2020-12-02 | 2021-12-01 | Kristallisationsvorrichtung zum kristallisieren eines vorproduktes und trocknungsvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020132043.4A DE102020132043A1 (de) | 2020-12-02 | 2020-12-02 | Kristallisationsvorrichtung zum Kristallisieren eines Vorproduktes und Trocknungsvorrichtung |
DE102020132043.4 | 2020-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022117169A1 true WO2022117169A1 (de) | 2022-06-09 |
Family
ID=80628624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2021/200231 WO2022117169A1 (de) | 2020-12-02 | 2021-12-01 | Kristallisationsvorrichtung zum kristallisieren eines vorproduktes und trocknungsvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240018612A1 (de) |
EP (1) | EP4255600A1 (de) |
CA (1) | CA3200460A1 (de) |
DE (2) | DE102020132043A1 (de) |
WO (1) | WO2022117169A1 (de) |
Citations (7)
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DE2157267A1 (de) | 1970-11-18 | 1972-05-31 | United States Gypsum Co | Verfahren zur Extraktion von Phosphorverbindungen |
US5006204A (en) * | 1988-08-10 | 1991-04-09 | A/S Niro Atomizer | Apparatus for crystallizing whey |
DE10047162A1 (de) | 2000-09-22 | 2002-04-11 | Basf Ag | Kristallisator mit mikrostrukturierter, selbstreinigender Oberfläche |
DE10149814A1 (de) | 2001-10-09 | 2003-04-30 | Fraunhofer Ges Forschung | Verfahren zur Herstellung von Kristallen aus in Lösungsmitteln gelösten Feststoffen |
US20080230051A1 (en) * | 2005-09-30 | 2008-09-25 | Niro A/S | Apparatus And A Process For Drying High Carbohydrate Content Liquids |
CN208726784U (zh) * | 2018-08-14 | 2019-04-12 | 上海缘昌医药化工装备有限公司 | 一种高效刮壁式空心圆盘冷却连续结晶机 |
DE212020000057U1 (de) | 2020-05-05 | 2020-06-04 | Pengchen New Material Technology Co., Ltd. | Eine Vorrichtung zur Kristallisation und Ausfällung chemischer Produkte |
-
2020
- 2020-12-02 DE DE102020132043.4A patent/DE102020132043A1/de not_active Withdrawn
-
2021
- 2021-12-01 US US18/039,718 patent/US20240018612A1/en active Pending
- 2021-12-01 EP EP21865323.6A patent/EP4255600A1/de active Pending
- 2021-12-01 DE DE112021006285.9T patent/DE112021006285A5/de active Pending
- 2021-12-01 WO PCT/DE2021/200231 patent/WO2022117169A1/de active Application Filing
- 2021-12-01 CA CA3200460A patent/CA3200460A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2157267A1 (de) | 1970-11-18 | 1972-05-31 | United States Gypsum Co | Verfahren zur Extraktion von Phosphorverbindungen |
US5006204A (en) * | 1988-08-10 | 1991-04-09 | A/S Niro Atomizer | Apparatus for crystallizing whey |
DE10047162A1 (de) | 2000-09-22 | 2002-04-11 | Basf Ag | Kristallisator mit mikrostrukturierter, selbstreinigender Oberfläche |
DE10149814A1 (de) | 2001-10-09 | 2003-04-30 | Fraunhofer Ges Forschung | Verfahren zur Herstellung von Kristallen aus in Lösungsmitteln gelösten Feststoffen |
US20080230051A1 (en) * | 2005-09-30 | 2008-09-25 | Niro A/S | Apparatus And A Process For Drying High Carbohydrate Content Liquids |
CN208726784U (zh) * | 2018-08-14 | 2019-04-12 | 上海缘昌医药化工装备有限公司 | 一种高效刮壁式空心圆盘冷却连续结晶机 |
DE212020000057U1 (de) | 2020-05-05 | 2020-06-04 | Pengchen New Material Technology Co., Ltd. | Eine Vorrichtung zur Kristallisation und Ausfällung chemischer Produkte |
Non-Patent Citations (1)
Title |
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FIRMENSCHRIFT KREYENBORG GMBH & CO. KG, KRISTALLISATION VON PET MASTERBATCHES, 27 July 2012 (2012-07-27) |
Also Published As
Publication number | Publication date |
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DE102020132043A1 (de) | 2022-06-02 |
CA3200460A1 (en) | 2022-06-09 |
DE112021006285A5 (de) | 2024-01-18 |
US20240018612A1 (en) | 2024-01-18 |
EP4255600A1 (de) | 2023-10-11 |
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