Separation and purification system for catalytic production of diglyceride by immobilized enzyme method

Abstract

The invention belongs to the technical field of diglyceride production, and provides a separation and purification system for catalytic production of diglyceride by using an immobilized enzyme method, the separation and purification system comprises conveying pipes, the conveying pipes are U-shaped pipes, the conveying pipes are connected with connecting assemblies, a plurality of conveying pipes are connected end to end through the connecting assemblies, and plugging assemblies are arranged in the conveying pipes; the connecting assembly comprises a sleeve, internal threads are arranged at the two ends of the inner wall of the sleeve respectively, external threads are arranged on the outer walls of the conveying pipes, the sleeve is connected with the two conveying pipes through the internal threads and the external threads, a baffle is fixedly connected to the inner wall of the sleeve, and a through hole is formed in the baffle. A sealing gasket is arranged between the baffle and the conveying pipe; the two conveying pipes are connected together by arranging the sleeve, the sleeve and the conveying pipes can be separated in a rotating mode, and the design convenient to disassemble enables cleaning work to be carried out more easily.

Description

Technical Field

[0001] The present invention belongs to the technical field of diglyceride production, and specifically relates to a separation and purification system for catalytic production of diglyceride by immobilized enzyme method. Background Art

[0002] Diglyceride is a glycerol derivative containing two fatty acid ester groups and one free hydroxyl group. Diglyceride is generally produced by chemical synthesis method or enzymatic synthesis method. Among them, enzymatic synthesis uses biological enzymes such as lipase or fatase as catalysts to carry out transesterification reaction between glycerol and fatty acids, fatty acid methyl esters or oils and fats under mild conditions to produce diglyceride. Diglyceride has a wide range of applications in the fields of food, medicine and cosmetics.

[0003] In the Chinese patent with the publication number of CN118185759B, a separation and purification system for catalytic production of diglyceride by immobilized enzyme method is disclosed. The axis of the pore frame is rotationally connected with a rotating shaft, and both ends of the rotating shaft are respectively connected with two groups of stirring magnetic rods. The upper part of the liquid injection pipe is communicated with an immobilized enzyme feeder. The end of the stirring pipe group is communicated with a liquid outlet pipe, and the liquid outlet pipe is communicated with a centrifuge. During the reaction, the fat source, anhydrous ethanol and immobilized enzyme are mixed in a certain proportion and introduced into the stirring pipe group. The stirring pipe group surrounded by the circle makes the magnetic field of the magnetic rotor 1 drive all the stirring magnetic rods to rotate at a constant speed, and uniformly mixes the three flowing through. And because the stirring pipes are connected in a wavy shape, sufficient reaction time is left for the three, and then it enters the centrifuge to complete continuous separation and purification.

[0004] In view of the above related technologies, the inventor believes that there are the following defects: in order to leave sufficient reaction time for the materials, a stirring pipe group with a wavy connection is set in this scheme. However, there are multiple elbows in the wavy shape of the stirring pipe group, which increases the difficulty of cleaning, and the materials are easy to remain at the elbows, which is likely to affect the quality of the product.

[0005] Therefore, those skilled in the art have proposed a separation and purification system for catalytic production of diglyceride by immobilized enzyme method to solve the problems raised in the background art. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a separation and purification system for catalytic production of diglyceride by immobilized enzyme method to solve the problems that there are multiple elbows in the wavy shape of the stirring pipe group in the prior art, which increases the difficulty of cleaning, and the materials are easy to remain at the elbows, which is likely to affect the quality of the product.

[0007] A separation and purification system for catalytic production of diglyceride by immobilized enzyme method includes a delivery pipe. The delivery pipe is a "U" - shaped pipe. The delivery pipe is connected with a connection assembly. A plurality of the delivery pipes are connected end to end through the connection assembly. A plugging assembly is arranged in the delivery pipe.

[0008] The connecting component includes a sleeve. Internal threads are respectively provided at both ends of the inner wall of the sleeve. External threads are provided on the outer wall of the conveying pipe. The sleeve is connected to the two conveying pipes through the internal threads and the external threads. A baffle is fixedly connected to the inner wall of the sleeve. A through hole is provided on the baffle. A sealing gasket is arranged between the baffle and the conveying pipe.

[0009] Preferably, the plugging component includes a mounting ring. The mounting ring is fixedly connected to the inner wall of the conveying pipe. The mounting ring is fixedly connected with a plugging spring. The plugging spring is fixedly connected with a plugging ball. A plugging ring is fixedly connected to the inner wall of the conveying pipe.

[0010] Preferably, inclined surfaces are provided at both ends of the mounting ring. An arc-shaped groove is provided at one end of the plugging ring close to the plugging ball. The arc-shaped groove is adapted to the plugging ball.

[0011] Preferably, a conveying cylinder is slidably connected to the baffle through the through hole. Anti-disengagement plates are fixedly connected to both ends of the conveying cylinder. The diameter of the anti-disengagement plate is larger than the diameter of the through hole. A through groove is provided on the circumferential side of the conveying cylinder.

[0012] Preferably, several of the conveying pipes are connected end to end to form a conveying channel. A feeding pipe is connected to one end of the conveying channel. A discharging pipe is connected to the other end of the conveying channel.

[0013] Preferably, a support platform is connected to the conveying channel. A frustum is fixedly connected to the lower end of the support platform. A first magnetic rotor is arranged inside the frustum. The first magnetic rotor is fixedly connected with a synchronous rod. The synchronous rod is fixedly connected with a second magnetic rotor. The synchronous rod is rotatably connected to the frustum.

[0014] Preferably, the conveying channel is coaxially arranged with the second magnetic rotor.

[0015] Preferably, a hole frame is connected to the inner wall of the conveying pipe. A rotating shaft is rotatably connected to the axis of the hole frame. Stirring magnetic rods are respectively connected to both ends of the rotating shaft.

[0016] Preferably, a support frame is fixedly installed on the upper surface of the support platform. The support frame is fixedly connected with a threaded cylinder. The threaded cylinder is threadedly connected with a threaded rod. A handle is fixedly connected to one end of the threaded rod. A clamping plate is rotatably connected to the other end of the threaded rod.

[0017] Preferably, the clamping plate is an arc-shaped plate. An elastic pad is fixedly installed on the inner arc surface of the clamping plate. The elastic pad abuts against the outer wall of the conveying pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, two delivery pipes are connected together by setting up a sleeve, and the sleeve and the delivery pipes can be separated by rotation. This convenient disassembly design makes the cleaning work easier to carry out. After separation, the delivery pipes are relatively short, which is convenient for the staff to clean the bent parts of the delivery pipes, can efficiently remove material residues, reduce the cleaning time and labor intensity, improve the cleaning efficiency, and a sealing gasket is set at the connection between the sleeve and the delivery pipes, which can effectively prevent leakage at the connection, ensure a good sealing state during the production process, prevent material leakage and entry of external impurities, and thus ensure the quality of production.

[0020] 2. In the present invention, when the sleeve is separated from the delivery pipe, the delivery cylinder no longer abuts against the plugging ball. At this time, the plugging spring pushes the plugging ball to move, so that the plugging ball fits into the arc-shaped groove of the plugging ring. At this time, the plugging ball blocks the arc-shaped groove. This design can play an important role when the delivery pipe leaks or needs to be cleaned, can effectively avoid the loss of materials in the delivery pipe, and can also prevent external impurities from entering the delivery pipe to contaminate the materials.

[0021] 3. In the present invention, the handle drives the threaded rod to rotate in the threaded cylinder. At this time, the threaded rod drives the clamping plate to move towards the delivery pipe, and finally the two clamping plates clamp and limit the delivery pipe from both sides, improving the fixing effect on the delivery pipe. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall separation and purification system for catalytic production of diglyceride by immobilized enzyme method;

[0023] Figure 2 It is a schematic diagram of the delivery channel of the separation and purification system for catalytic production of diglyceride by immobilized enzyme method;

[0024] Figure 3 It is a schematic cross-sectional view of the delivery pipe of the separation and purification system for catalytic production of diglyceride by immobilized enzyme method;

[0025] Figure 4 It is Figure 3 The enlarged schematic diagram at point A in

[0026] Figure 5 It is Figure 3 The enlarged schematic diagram at point B in

[0027] Figure 6 It is a schematic diagram of the first magnetic rotor, synchronous rod and second magnetic rotor of the separation and purification system for catalytic production of diglyceride by immobilized enzyme method;

[0028] Figure 7 It is Figure 1 The enlarged schematic diagram at point C in

[0029] In the figure:

[0030] 1. Delivery pipe; 2. Connection assembly; 201. Sleeve; 202. Baffle; 203. Sealing gasket; 3. Blocking assembly; 301. Mounting ring; 302. Blocking spring; 303. Blocking ball; 304. Blocking ring; 305. Inclined plane; 306. Arc groove; 4. Delivery cylinder; 5. Anti-disengagement plate; 6. Through groove; 7. Feed pipe; 8. Discharge pipe; 9. Support platform; 10. Frustum; 11. First magnetic rotor; 12. Synchronous rod; 13. Second magnetic rotor; 14. Hole frame; 15. Rotating shaft; 16. Stirring magnetic rod; 17. Support frame; 18. Threaded cylinder; 19. Threaded rod; 20. Handle; 21. Clamping plate; 22. Elastic pad. Specific embodiments

[0031] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0032] Example 1

[0033] As shown in the attached Figure 1 to the attached Figure 4 figures, this embodiment provides a separation and purification system for catalytic production of diglyceride using the immobilized enzyme method, including a delivery pipe 1. The delivery pipe 1 is a "U"-shaped pipe. There are multiple delivery pipes 1. The special shape of the delivery pipe 1 can extend the conveying distance of the material. The multiple delivery pipes 1 cooperate with each other to convey the material, which can leave sufficient reaction time for the material. The delivery pipe 1 is connected with a connection assembly 2. Several delivery pipes 1 are connected end to end through the connection assembly 2. Through the connection assembly 2, multiple delivery pipes 1 can be connected into a whole, and leakage can be avoided during the process of conveying the material. When it is necessary to clean the inner wall of the delivery pipe 1 or perform maintenance, multiple delivery pipes 1 need to be disassembled and separated. The connection assembly 2 supports quick disassembly work. The length of a single delivery pipe 1 is limited, which is convenient for cleaning the bent part of the delivery pipe 1 during the cleaning process, and the maintenance work can also be carried out faster. A blocking assembly 3 is arranged in the delivery pipe 1. When multiple delivery pipes 1 are disassembled and separated, the blocking assembly 3 blocks the delivery pipe 1, which can avoid the loss of the material in the delivery pipe 1 and prevent external impurities from entering the delivery pipe 1 to contaminate the material;

[0034] The connecting component 2 includes a sleeve 201, wherein the inner diameter of the sleeve 201 is adapted to the outer diameter of the conveying pipe 1. Internal threads are respectively provided at both ends of the inner wall of the sleeve 201, and external threads are provided on the outer wall of the conveying pipe 1. The sleeve 201 is connected to the two conveying pipes 1 through the internal threads and external threads. This thread setting enables the sleeve 201 and the conveying pipe 1 to be quickly connected or disassembled, thereby improving work efficiency. A baffle 202 is fixedly connected to the inner wall of the sleeve 201, wherein the baffle 202 provides assistance for the installation of the sealing gasket 203 and the conveying cylinder 4. The baffle 202 is provided with a through hole. When the sleeve 201 is connected to the conveying pipe 1, the material flows from the previous conveying pipe 1 to the next conveying pipe 1 through the through hole. A sealing gasket 203 is provided between the baffle 202 and the conveying pipe 1, which can prevent the material in the conveying pipe 1 from leaking.

[0035] As can be seen from the above, the sleeve 201 and the two conveying pipes 1 are connected together by the cooperation of the internal threads and external threads. When the sleeve 201 and the conveying pipe 1 are tightened, the sealing gasket 203 is squeezed and deformed to fill the gap, thereby preventing the material in the conveying pipe 1 from leaking. Using the sleeve 201 to connect the multiple conveying pipes 1 end to end to form a wavy shape can extend the conveying distance of the material and leave sufficient reaction time for the material. When the conveying pipe 1 needs to be cleaned or repaired and replaced, the sleeve 201 is rotated in the reverse direction to separate the sleeve 201 from the conveying pipe 1. Since the length of a single conveying pipe 1 is limited, cleaning the scattered conveying pipes 1 during cleaning can improve efficiency and facilitate cleaning the bent part of the conveying pipe 1 during the cleaning process. When the sleeve 201 is separated from the conveying pipe 1, the blocking component 3 blocks the conveying pipe 1, which can prevent the material in the conveying pipe 1 from flowing out and also prevent external impurities from entering the conveying pipe 1 to contaminate the material, and the repair work can also be carried out faster.

[0036] Embodiment 2

[0037] As shown in the attached Figure 1 to the attached Figure 4As shown, this embodiment is basically the same as the previous embodiment, with the difference that the blocking component 3 includes a mounting ring 301, wherein the mounting ring 301 provides a space for installing the blocking spring 302, and the mounting ring 301 is fixedly connected to the inner wall of the conveying pipe 1. This mounting method can ensure the stability of the mounting ring 301 when in use, and the mounting ring 301 is fixedly connected to the blocking spring 302, and the blocking spring 302 is in a compressed state during the material conveying process, and the blocking spring 302 is fixedly connected to the blocking ball 303. When the sleeve 201 is separated from the conveying pipe 1, the blocking spring 302 returns to its original state. At this time, the blocking spring 302 provides thrust and pushes the blocking ball 303 to collide with the blocking ring 304, so that the blocking ring 304 is blocked, and the material cannot continue to flow. The inner wall of the conveying pipe 1 is fixedly connected to the blocking ring 304. When the blocking ball 303 is separated from the blocking ring 304, the material can continue to flow by passing through the blocking ring 304.

[0038] Specifically, inclined surfaces 305 are provided at both ends of the mounting ring 301. By providing inclined surfaces 305 at both ends of the mounting ring 301, the flow of logistics can be guided to prevent the formation of dead corners and material residues. An arc groove 306 is provided at one end of the sealing ring 304 close to the sealing ball 303. The arc groove 306 is adapted to the sealing ball 303. The sealing ball 303 gradually approaches the sealing ring 304 until it enters the arc groove 306. At this time, the arc groove 306 is filled with the sealing ball 303 to avoid material leakage.

[0039] Furthermore, the baffle 202 is slidably connected to the conveying cylinder 4 through the through hole. The position of the conveying cylinder 4 will change when pushed. Anti-slip plates 5 are fixedly connected to both ends of the conveying cylinder 4. The diameter of the anti-slip plates 5 is larger than the diameter of the through hole. The anti-slip plates 5 can be set to prevent the conveying cylinder 4 from detaching from the through hole. A through groove 6 is opened on the peripheral side of the conveying cylinder 4, and the material flows through the through groove 6.

[0040] As can be seen from the above, when the sleeve 201 is connected to the first conveying pipe 1, the conveying cylinder 4 is close to the blocking ball 303. Since the blocking ball 303 is connected to the blocking spring 302, the conveying cylinder 4 is blocked from sliding along the through hole. At this time, the conveying cylinder 4 and the sleeve 201 move in opposite directions. Then the sleeve 201 is connected to the second conveying pipe 1, and the conveying cylinder 4 contacts the second blocking ball 303. As the sleeve 201 and the second conveying pipe 1 are threadedly connected, the two blocking balls 303 are separated from the arc groove 306, the two blocking springs 302 are compressed, and the conveying cylinder 4 moves to the middle of the two blocking balls 303. At this time, the material can flow from the first conveying pipe 1 into the conveying pipe 1 through the through groove 6, and flow from the conveying pipe 1 into the second conveying pipe 1 through the through groove 6, thereby realizing the transportation of the material.

[0041] When the sleeve 201 and the conveying pipe 1 are separated, the blocking ball 303 is no longer squeezed by the conveying cylinder 4. The blocking spring 302 returns to its original state and brings the blocking ball 303 into the arc-shaped groove 306 to block the blocking ring 304, which can prevent material leakage and prevent foreign impurities from entering the conveying pipe 1 to contaminate the material.

[0042] Embodiment III

[0043] As shown in the attached Figure 1 to the attached Figure 7 As shown, this embodiment is basically the same as the previous embodiment. The difference is that several conveying pipes 1 are connected end to end to form a conveying channel, and the conveying channel is in a wave shape, which extends the conveying distance of the material and leaves sufficient reaction time for the material. One end of the conveying channel is connected to a feeding pipe 7. The feeding pipe 7 is respectively connected to a liquid injection pipe for conveying a fat source and anhydrous ethanol, and a fixed enzyme feeder for conveying an immobilized enzyme through a three-way pipe. The other end of the conveying channel is connected to a discharging pipe 8. The discharging pipe 8 is connected to a centrifuge. The material enters the conveying channel through the feeding pipe 7 for mixing and reaction, and the mixed and reacted material enters the centrifuge through the discharging pipe 8 for further treatment.

[0044] Specifically, the conveying channel is connected to a support platform 9. The support platform 9 provides support for the conveying channel to prevent tilting. The lower end of the support platform 9 is fixedly connected to a frustum 10. The lower end of the conveying channel is in contact with the upper surface of the frustum 10. A first magnetic rotor 11 is arranged inside the frustum 10. The first magnetic rotor 11 is fixedly connected to a synchronous rod 12. The synchronous rod 12 is fixedly connected to a second magnetic rotor 13. The synchronous rod 12 is rotationally connected to the frustum 10. The synchronous rod 12 is connected to a power source, such as a driving motor. When the synchronous rod 12 rotates due to the power source, the synchronous rod 12 will drive the first magnetic rotor 11 and the second magnetic rotor 13 to rotate.

[0045] Furthermore, the conveying channel is coaxially arranged with the second magnetic rotor 13. By setting the position between the conveying channel and the second magnetic rotor 13, the working stability of the second magnetic rotor 13 is ensured.

[0046] Furthermore, a hole frame 14 is connected to the inner wall of the conveying pipe 1. A rotating shaft 15 is rotationally connected to the axis of the hole frame 14. Stirring magnetic rods 16 are respectively connected to both ends of the rotating shaft 15. When the first magnetic rotor 11 and the second magnetic rotor 13 rotate, the generated rotating magnetic field will cause the stirring magnetic rods 16 to rotate. The rotation of the stirring magnetic rods 16 can fully mix the material in the conveying pipe 1, thereby ensuring the uniform mixing of the materials and providing good reaction conditions for the synthesis of diglyceride.

[0047] Further, a support frame 17 is fixedly installed on the upper surface of the support platform 9. The support frame 17 and the threaded barrel 18 cooperate to support the threaded rod 19. The support frame 17 is fixedly connected to the threaded barrel 18, and the threaded barrel 18 is threadedly connected to the threaded rod 19. When the threaded rod 19 rotates, the threaded rod 19 interacts with the threaded barrel 18. While rotating, the threaded rod 19 moves along the length direction of the threaded barrel 18. One end of the threaded rod 19 is fixedly connected to a handle 20. The setting of the handle 20 facilitates the operation of rotating the threaded rod 19. The other end of the threaded rod 19 is rotatably connected to a clamping plate 21. The movement of the threaded rod 19 drives the clamping plate 21 to approach the conveying pipe 1 until the two clamping plates 21 respectively abut against the two ends of the conveying pipe 1. At this time, the clamping plate 21 limits and fixes the conveying pipe 1.

[0048] Further, the clamping plate 21 is an arc-shaped plate, making the shape of the clamping plate 21 more suitable for the conveying pipe 1, thereby improving the fixing effect. An elastic pad 22 is fixedly installed on the inner arc surface of the clamping plate 21. The elastic pad 22 abuts against the outer wall of the conveying pipe 1. When the elastic pad 22 is squeezed, the area expands, thereby expanding the contact area with the conveying pipe 1 and facilitating the clamping and fixing of the conveying pipe 1.

[0049] As can be seen from the above, first install a part of the conveying pipe 1 vertically with the opening facing upward on the support platform 9, and make the lower end of this part of the conveying pipe 1 contact the upper surface of the frustum 10. Then operate the handle 20 to rotate the threaded rod 19. During the rotation of the threaded rod 19, it moves until the elastic pad 22 abuts against the conveying pipe 1, completing the clamping and fixing of the conveying pipe 1. Then connect another part of the conveying pipe 1 vertically with the opening facing downward to the previous conveying pipe 1 through the sleeve 201. The material enters the conveying channel through the feeding pipe 7 for mixing and reaction. The synchronous rod 12 is driven to rotate by the power source, and the synchronous rod 12 will drive the first magnetic rotor 11 and the second magnetic rotor 13 to rotate. When the first magnetic rotor 11 and the second magnetic rotor 13 rotate, the generated rotating magnetic field will cause the stirring magnetic rod 16 to rotate. The rotation of the stirring magnetic rod 16 can make the material in the conveying pipe 1 be fully mixed, thereby ensuring the uniform mixing between the materials and providing good reaction conditions for the synthesis of diglyceride. The mixed and reacted material enters the centrifuge through the discharge pipe 8 for further processing.

[0050] In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the usual designs. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

[0052] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0053] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

Claims

1. A separation and purification system for catalytic production of diglyceride by immobilized enzyme method, characterized in that: It includes a delivery pipe (1), the delivery pipe (1) is a "U"-shaped pipe, the delivery pipe (1) is connected with a connection assembly (2), and a number of the delivery pipes (1) are connected end to end through the connection assembly (2), and a blocking assembly (3) is arranged inside the delivery pipe (1); The connection assembly (2) includes a sleeve (201), internal threads are respectively provided at both ends of the inner wall of the sleeve (201), external threads are provided on the outer wall of the delivery pipe (1), and the sleeve (201) is connected with two delivery pipes (1) through the internal and external threads. A baffle (202) is fixedly connected to the inner wall of the sleeve (201), a through hole is provided on the baffle (202), and a sealing gasket (203) is arranged between the baffle (202) and the delivery pipe (1).

2. The separation and purification system for catalytic production of diglyceride by immobilized enzyme method according to claim 1, wherein: The blocking assembly (3) includes a mounting ring (301), the mounting ring (301) is fixedly connected with the inner wall of the delivery pipe (1), the mounting ring (301) is fixedly connected with a blocking spring (302), the blocking spring (302) is fixedly connected with a blocking ball (303), and a blocking ring (304) is fixedly connected to the inner wall of the delivery pipe (1).

3. A separation and purification system for catalytic production of diglyceride by immobilized enzyme method according to claim 2, characterized in that: Both ends of the mounting ring (301) are provided with inclined surfaces (305), an arc-shaped groove (306) is provided at one end of the blocking ring (304) close to the blocking ball (303), and the arc-shaped groove (306) is adapted to the blocking ball (303).

4. A separation and purification system for catalytic production of diglyceride by immobilized enzyme method according to claim 3, characterized in that: A delivery cylinder (4) is slidably connected to the baffle (202) through the through hole. Anti-disengagement plates (5) are fixedly connected to both ends of the delivery cylinder (4), the diameter of the anti-disengagement plates (5) is larger than the diameter of the through hole, and through grooves (6) are provided on the circumferential side of the delivery cylinder (4).

5. The separation and purification system for catalytic production of diglyceride by immobilized enzyme method according to claim 4, wherein: A number of the delivery pipes (1) are connected end to end to form a delivery channel. One end of the delivery channel is communicated with a feed pipe (7), and the other end of the delivery channel is communicated with a discharge pipe (8).

6. The separation and purification system for catalytic production of diglyceride by immobilized enzyme method according to claim 5, characterized in that: The delivery channel is connected with a support platform (9), a frustum (10) is fixedly connected to the lower end of the support platform (9), a first magnetic rotor (11) is arranged inside the frustum (10), a synchronous rod (12) is fixedly connected to the first magnetic rotor (11), a second magnetic rotor (13) is fixedly connected to the synchronous rod (12), and the synchronous rod (12) is rotatably connected to the frustum (10).

7. An immobilized enzyme-catalyzed production and separation and purification system for diglyceride as claimed in claim 6, characterized in that: The delivery channel is coaxially arranged with the second magnetic rotor (13).

8. A separation and purification system for catalytic production of diglyceride by immobilized enzyme method according to claim 7, characterized in that: A hole frame (14) is connected to the inner wall of the delivery pipe (1), a rotating shaft (15) is rotatably connected to the axis of the hole frame (14), and stirring magnetic rods (16) are respectively connected to both ends of the rotating shaft (15).

9. An immobilized enzyme method-catalyzed glyceride separation and purification system according to claim 8, characterized in that: A support frame (17) is fixedly installed on the upper surface of the support platform (9), a threaded cylinder (18) is fixedly connected to the support frame (17), a threaded rod (19) is threadedly connected to the threaded cylinder (18), a handle (20) is fixedly connected to one end of the threaded rod (19), and a clamping plate (21) is rotatably connected to the other end of the threaded rod (19).

10. A separation and purification system for catalytic production of diglyceride by immobilized enzyme method according to claim 9, characterized in that: The clamping plate (21) is an arc-shaped plate, an elastic pad (22) is fixedly installed on the inner arc surface of the clamping plate (21), and the elastic pad (22) abuts against the outer wall of the delivery pipe (1).

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