A seaweed oligosaccharide concentration and crystallization device

Abstract

The utility model discloses a kind of seaweed oligosaccharide concentration and crystallization device, comprising: membrane filtration equipment installed on the outer wall one end of bottom plate top and crystallization tank on the outer wall other end of bottom plate top, further comprising: connecting between membrane filtration equipment and crystallization tank liquid inlet pipe, liquid suction pump is installed on the liquid inlet pipe, and fixed plate is installed on the outer wall of bottom plate top, the outer wall of fixed plate one side is installed with electrically-conductive sliding platform, and controller is installed on the outer wall of fixed plate one side, tank cover is installed on the electrically-conductive sliding platform sliding member.The utility model of a kind of seaweed oligosaccharide concentration and crystallization device, by membrane filtration preliminary concentration, in combination with vacuum low-temperature heating depth enrichment, seaweed oligosaccharide thermal degradation can be avoided, water is removed efficiently;Ethanol addition and stirring linkage, ensure uniform mixing, conducive to the regular precipitation of crystal;Sealing structure guarantees the vacuum environment in tank, filter screen cooperates with sliding platform and collects crystal conveniently, overall improves concentration crystallization efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of algal oligosaccharide concentration and crystallization technology, specifically to an algal oligosaccharide concentration and crystallization device. Background Technology

[0002] Seaweed oligosaccharides have significant application value, and their concentration and crystallization are crucial steps in the preparation process. Current seaweed oligosaccharide preparation methods often rely on dispersed equipment for concentration and crystallization in separate steps, requiring manual material transfer. This is not only inefficient but also prone to contamination and raw material waste due to exposure, and the multiple equipment setups significantly increase production costs. Another process uses high-temperature heating for concentration, which damages the heat-sensitive structure of seaweed oligosaccharides, leading to a loss of their bioactivity. After crystallization, the crystals require additional filtration equipment for collection, making the operation cumbersome and further reducing production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a device for concentrating and crystallizing seaweed oligosaccharides to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a seaweed oligosaccharide concentration and crystallization device, comprising: a membrane filtration device installed at one end of the top outer wall of a base plate and a crystallization tank at the other end of the top outer wall of the base plate; further comprising: an inlet pipe connected between the membrane filtration device and the crystallization tank; a pump installed on the inlet pipe; a fixing plate installed on the top outer wall of the base plate; a conductive slide installed on one side of the fixing plate; a controller installed on one side of the fixing plate; a tank cover installed on the sliding part of the conductive slide; a storage component rotatably installed on the top outer wall of the tank cover; a motor installed on one side of the tank cover; a transmission component installed on the output shaft of the motor; the motor being connected to the storage component via the transmission component; a vacuum pump installed on one side of the crystallization tank; a stirring component installed at the bottom of the storage component; a filter screen rotatably connected to the bottom of the stirring component; multiple equidistantly distributed electric heating coils inside the crystallization tank; and a temperature sensor installed on one side of the crystallization tank.

[0005] The liquid storage assembly includes a connecting pipe, through holes at both ends of the bottom outer wall of the connecting pipe, and a liquid storage tank installed on the top of the connecting pipe.

[0006] The transmission assembly includes a drive wheel mounted on the motor output shaft, a driven wheel mounted on the outer wall of the connecting pipe, and a transmission belt connecting the drive wheel and the driven wheel.

[0007] The stirring assembly includes a stirring shaft and multiple stirring rods evenly distributed on the outer walls of both sides of the stirring shaft.

[0008] A steam outlet is provided on the inner wall of the other side of the crystallization tank, and the steam outlet is connected to an external condenser through a condenser pipe.

[0009] The crystallization tank has a sealing groove on the top outer wall and a sealing ring is installed on the bottom outer wall of the tank cover.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention relates to a seaweed oligosaccharide concentration and crystallization device. It achieves initial concentration through membrane filtration, followed by deep concentration through vacuum low-temperature heating, which avoids thermal degradation of seaweed oligosaccharides and efficiently removes moisture. The linkage between ethanol addition and stirring ensures uniform mixing, which is conducive to the regular precipitation of crystals. The sealed structure ensures a vacuum environment inside the tank, and the filter screen and sliding table facilitate the collection of crystals, thereby improving the overall concentration and crystallization efficiency and product quality. Attached Figure Description

[0011] Figure 1 This is an external structural view of the present invention; Figure 2 This is a cross-sectional view of the crystallization tank of this utility model; Figure 3 This is a structural diagram of the liquid storage component and the transmission component of this utility model; Figure 4 This is a structural diagram of the stirring assembly of this utility model.

[0012] In the diagram: 1. Membrane filtration equipment; 2. Crystallization tank; 3. Inlet pipe; 4. Pump; 5. Fixing plate; 6. Conductive slide; 7. Controller; 8. Tank cover; 9. Storage assembly; 901. Connecting pipe; 902. Storage tank; 903. Through hole; 10. Motor; 11. Transmission assembly; 1101. Drive wheel; 1102. Driven wheel; 1103. Transmission belt; 12. Vacuum pump; 13. Stirring assembly; 1301. Stirring shaft; 1302. Stirring rod; 14. Filter screen; 15. Electric heating coil; 16. Temperature sensor; 17. Steam outlet. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4This utility model provides a seaweed oligosaccharide concentration and crystallization device, comprising: a membrane filter 1 installed at one end of the top outer wall of a base plate and a crystallization tank 2 at the other end of the top outer wall of the base plate; further comprising: an inlet pipe 3 connecting the membrane filter 1 and the crystallization tank 2; a pump 4 installed on the inlet pipe 3; a fixing plate 5 installed on the top outer wall of the base plate; a conductive slide 6 installed on one side of the outer wall of the fixing plate 5; a controller 7 installed on one side of the outer wall of the fixing plate 5; a tank cover 8 installed on the sliding part of the conductive slide 6; and the top of the tank cover 8... A liquid storage component 9 is rotatably mounted on the outer wall of the crystallizer 2. A motor 10 is mounted on one side of the outer wall of the tank cover 8, and a transmission component 11 is mounted on the output shaft of the motor 10. The motor 10 is connected to the liquid storage component 9 through the transmission component 11. A vacuum pump 12 is mounted on one side of the outer wall of the crystallizer 2. A stirring component 13 is mounted at the bottom of the liquid storage component 9, and a filter screen 14 is rotatably connected to the bottom of the stirring component 13. Multiple equally spaced electric heating coils 15 are provided inside the crystallizer 2, and a temperature sensor 16 is mounted on one side of the outer wall of the crystallizer 2.

[0015] It should be noted here that: First, the seaweed oligosaccharide solution enters the membrane filtration device 1 for filtration and concentration (the membrane filtration device 1 is existing technology, and its specific structure will not be described in detail): using a membrane with a specific pore size (such as a nanofiltration membrane with a molecular weight cutoff of 200-500 Da), the "seaweed oligosaccharide retention" and "water / small molecule impurity permeation" are achieved at room temperature and low pressure (0.1-1 MPa), thereby initially increasing the concentration of the seaweed oligosaccharide solution; The concentrated seaweed oligosaccharide solution is pumped into the crystallization tank 2 through the inlet pipe 3 by the pump 4. The vacuum pump 12 is started to evacuate the crystallization tank 2 (vacuum degree maintained at 0.08-0.1MPa) to lower the boiling point of water, so that water can evaporate at 45-55℃ (far below the boiling point of 100℃ at normal pressure). At the same time, the electric heating coil 15 is started to heat the seaweed oligosaccharide solution in the crystallization tank 2 at low temperature to further evaporate water and increase the solution concentration. The temperature sensor 16 can monitor the temperature inside the tank in real time and feed the data back to the controller 7. The controller 7 adjusts the heating state of the electric heating coil 15 to ensure that the temperature is stable at 45-55℃. Once the solution concentration reaches the crystallization requirement, anhydrous ethanol is injected into the storage component 9 and its valve is opened. The motor 10 is then started. The motor 10 drives the storage component 9 to rotate through the transmission component 11. The anhydrous ethanol in the storage component 9 flows evenly into the seaweed oligosaccharide solution as it rotates. At the same time, the storage component 9 drives the bottom stirring component 13 to rotate synchronously. The stirring component 13 stirs the mixture of solution and ethanol to avoid excessively high local concentrations, which would cause the seaweed oligosaccharide to form a supersaturated state due to reduced solubility and precipitate crystals. After crystallization is completed, the conductive slide 6 on the fixed plate 5 is started by the controller 7. The sliding part of the conductive slide 6 drives the tank cover 8 to move upward. The tank cover 8 further drives the liquid storage component 9, the stirring component 13 and the filter screen 14 connected to the bottom of the stirring component 13 to rise. During the rising process, the filter screen 14 intercepts the seaweed oligosaccharide crystals precipitated in the crystallization tank 2 and carries the crystals out of the tank, completing the crystallization collection.

[0016] In a preferred embodiment, the liquid storage assembly 9 includes a connecting pipe 901, through holes 903 formed at both ends of the bottom outer wall of the connecting pipe 901, and a liquid storage tank 902 installed on the top of the connecting pipe 901.

[0017] It should be noted here that: before crystallization, anhydrous ethanol is injected into the storage tank 902 for storage, waiting for the crystallization process to start. When ethanol needs to be added, the outlet valve of the storage tank 902 is opened, and the anhydrous ethanol flows into the connecting pipe 901 under the action of gravity and the centrifugal force of the rotating storage component 9. The through holes 903 at both ends of the bottom outer wall of the connecting pipe 901 guide the ethanol evenly into the seaweed oligosaccharide solution in the crystallization tank 2, avoiding local ethanol aggregation that could lead to crystal agglomeration. At the same time, the connecting pipe 901 serves as the connecting carrier between the liquid storage component 9 and the stirring component 13. When the transmission component 11 rotates, it can synchronously drive the stirring component 13 to rotate, thus achieving the coordinated operation of "ethanol addition + stirring".

[0018] In a preferred embodiment, the transmission assembly 11 includes a drive wheel 1101 mounted on the output shaft of the motor 10, a driven wheel 1102 mounted on the outer wall of the connecting pipe 901, and a transmission belt 1103 that drives the drive wheel 1101 and the driven wheel 1102.

[0019] It should be noted that when the output shaft of motor 10 rotates, it can drive the drive wheel 1101 to rotate, which in turn drives the driven wheel 1102 and the connecting pipe 901 to rotate through the transmission belt 1103.

[0020] In a preferred embodiment, the stirring assembly 13 includes a stirring shaft 1301 and a plurality of stirring rods 1302 that are equidistantly distributed on the outer walls of both sides of the stirring shaft 1301.

[0021] It should be noted that the stirring shaft 1301 can rotate together with the connecting pipe 901, thereby driving the stirring rod 1302 to rotate, so as to fully stir the mixture of seaweed oligosaccharide solution and anhydrous ethanol.

[0022] In a preferred embodiment, a vapor outlet 17 is provided on the inner wall of the other side of the crystallization tank 2, and the vapor outlet 17 is connected to an external condenser through a condenser pipe.

[0023] It should be noted here that: to ensure the efficient discharge of water vapor, to avoid the accumulation of water vapor in crystallizer 2 which would lead to an increase in pressure inside the tank, and to ensure that the tank always maintains a stable vacuum and a low-temperature evaporation environment of 45-55℃, so as to guarantee the efficiency of concentration and crystallization.

[0024] In a preferred embodiment, a sealing groove is provided on the top outer wall of the crystallization tank 2, and a sealing ring is installed on the bottom outer wall of the tank cover 8.

[0025] It should be noted here that the sealing between the crystallization tank 2 and the tank cover 8 should be improved.

[0026] Working principle: The seaweed oligosaccharide solution first enters the membrane filtration device 1. Using a membrane with a specific pore size (such as a nanofiltration membrane with a molecular weight cutoff of 200-500 Da) in the device, the "seaweed oligosaccharide retention" and "water / small molecule impurity permeation" are achieved under normal temperature and low pressure (0.1-1 MPa) conditions, thus initially increasing the concentration of the seaweed oligosaccharide solution (the membrane filtration device 1 is existing technology, and its specific structure will not be described in detail). The seaweed oligosaccharide solution, concentrated by the membrane filtration device 1, is pumped into the crystallization tank 2 through the inlet pipe 3 by the pump 4. The vacuum pump 12 installed on one side of the crystallization tank 2 is activated to evacuate the inside of the crystallization tank 2, maintaining the vacuum degree inside the tank at 0.08-0.1MPa, thereby lowering the boiling point of water and allowing water to evaporate at 45-55℃ (far lower than the boiling point of 100℃ under normal pressure). At the same time, multiple equidistantly distributed electric heating coils 15 inside the crystallization tank 2 are activated to heat the seaweed oligosaccharide solution inside the tank at low temperature, accelerating water evaporation and further increasing the solution concentration. The temperature sensor 16 on the outer wall of one side of the crystallization tank 2 monitors the temperature inside the tank in real time, and the monitoring data is fed back to the controller 7 on one side of the fixed plate 5. The controller 7 adjusts the heating state of the electric heating coils 15 to ensure that the temperature inside the tank is stable at 45-55℃, avoiding thermal degradation of seaweed oligosaccharides. Inject anhydrous ethanol into the storage tank 902 inside the storage assembly 9 at the top of the can lid 8 and open the valve. Start the motor 10. The output shaft of the motor 10 drives the drive wheel 1101 to rotate. The drive wheel 1101 drives the driven wheel 1102 to rotate through the transmission belt 1103, thereby driving the entire storage assembly 9 to rotate. When the liquid storage component 9 rotates, the anhydrous ethanol in the liquid storage tank 902 flows evenly into the seaweed oligosaccharide solution through the through hole 903 at the bottom of the connecting pipe 901; at the same time, the stirring component 13 at the bottom of the liquid storage component 9 rotates synchronously with the connecting pipe 901, and the stirring shaft 1301 drives the stirring rods 1302 on both sides to stir the mixture of solution and ethanol, break the concentration gradient, reduce the solubility of seaweed oligosaccharide in the solution, and promote it to form a supersaturated state and precipitate crystals; After crystallization, the controller 7 controls the sliding component of the conductive slide 6 to move the lid 8 upward. The sealing ring at the bottom of the lid 8 disengages from the sealing groove at the top of the crystallization tank 2 (when the lid is closed, the two work together to ensure the tank is sealed). At the same time, the lid 8 drives the liquid storage component 9, the stirring component 13, and the filter screen 14 connected to the bottom of the stirring component 13 to rise synchronously. During the rising process, the filter screen 14 intercepts the seaweed oligosaccharide crystals precipitated in the crystallization tank 2 and carries the crystals out of the tank, thus completing the crystal collection.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for concentrating and crystallizing seaweed oligosaccharides, comprising: A membrane filtration device (1) is installed on one end of the top outer wall of the base plate and a crystallization tank (2) is installed on the other end of the top outer wall of the base plate. The feature is that it further includes: an inlet pipe (3) connected between the membrane filtration device (1) and the crystallization tank (2), a liquid pump (4) is installed on the inlet pipe (3), and a fixing plate (5) is installed on the top outer wall of the bottom plate, a conductive slide (6) is installed on one side of the outer wall of the fixing plate (5), and a controller (7) is installed on one side of the outer wall of the fixing plate (5), a tank cover (8) is installed on the sliding part of the conductive slide (6), and a liquid storage component (9) is rotatably installed on the top outer wall of the tank cover (8), and a motor is installed on one side of the outer wall of the tank cover (8). 10), and the output shaft of the motor (10) is equipped with a transmission assembly (11). The motor (10) is connected to the liquid storage assembly (9) through the transmission assembly (11). A vacuum pump (12) is installed on one side of the crystallizer (2). A stirring assembly (13) is installed at the bottom of the liquid storage assembly (9). A filter screen (14) is rotatably connected to the bottom of the stirring assembly (13). Multiple equally spaced electric heating coils (15) are provided inside the crystallizer (2). A temperature sensor (16) is installed on one side of the crystallizer (2).

2. The apparatus for concentrating and crystallizing seaweed oligosaccharides according to claim 1, characterized in that: The liquid storage assembly (9) includes a connecting pipe (901), through holes (903) at both ends of the bottom outer wall of the connecting pipe (901), and a liquid storage tank (902) installed on the top of the connecting pipe (901).

3. The apparatus for concentrating and crystallizing seaweed oligosaccharides according to claim 2, characterized in that: The transmission assembly (11) includes a drive wheel (1101) mounted on the output shaft of the motor (10), a driven wheel (1102) mounted on the outer wall of the connecting pipe (901), and a transmission belt (1103) that is connected to the drive wheel (1101) and the driven wheel (1102).

4. The apparatus for concentrating and crystallizing seaweed oligosaccharides according to claim 1, characterized in that: The stirring assembly (13) includes a stirring shaft (1301) and a plurality of stirring rods (1302) evenly distributed on the outer walls of both sides of the stirring shaft (1301).

5. The device for concentrating and crystallizing SEOF according to claim 1, wherein: The crystallizer (2) has a steam outlet (17) on the other side of its inner wall, and the steam outlet (17) is connected to an external condenser through a condenser pipe.

6. The device for concentrating and crystallizing SEOF according to claim 1, wherein: The crystallization tank (2) has a sealing groove on the top outer wall, and the tank cover (8) has a sealing ring installed on the bottom outer wall.

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