A carrageenanase hydrolysis apparatus and method

Abstract

This invention relates to the field of carrageenan production technology, specifically a carrageenan enzymatic hydrolysis device, comprising a base, two telescopic rods, and a reaction vessel. The two telescopic rods are respectively installed at the left and right ends of the upper surface of the base, and the reaction vessel is installed at the top of the telescopic rods. The reaction vessel can be raised and lowered under the limiting action of the telescopic rods. The reaction vessel is used to store the carrageenan solution. A sealing mechanism is installed at the top of the reaction vessel, and a stirrer is installed at the center of the upper surface of the sealing mechanism. This device allows for precise gradient control of the number of heaters used. A single heater can maintain a stable temperature for the enzymatic hydrolysis reaction. Simultaneous operation of two heaters can significantly shorten the preheating time of the carrageenan solution, improving the overall efficiency of the enzymatic hydrolysis. Simultaneous operation of multiple heaters allows the solution to rapidly heat to the carrageenan enzyme inactivation temperature, promptly and thoroughly terminating the enzymatic hydrolysis reaction, avoiding product quality degradation caused by over-hydrolysis, and effectively ensuring the quality of the finished carrageenan product.

Description

Technical Field

[0001] This invention relates to the field of carrageenan production technology, specifically to a carrageenan enzymatic hydrolysis device and method. Background Technology

[0002] Carrageenan is a widely used hydrophilic colloid, also known as agar, agar, or carrageenan gum. It is extracted from red algae such as *Euphorbia milii*, *Agaricus esculentus*, and *Carrageenan*, and its chemical structure consists of calcium, potassium, sodium, and ammonium salts of a polysaccharide sulfate ester composed of galactose and dehydrated galactose. Due to its excellent colloidal properties, carrageenan has a wide range of applications in the food industry, including the production and processing of various foods such as jellies, ice cream, pastries, soft candies, canned goods, meat products, eight-treasure porridge, bird's nest soup, soups, and cold dishes.

[0003] Carrageenan is naturally found within the plant tissues of red algae, specifically seagrass. It requires enzymatic hydrolysis for modification. The core purpose of this hydrolysis is to degrade the large molecular structure of carrageenan into smaller molecular fragments, thereby obtaining a low-viscosity, highly active, and easily absorbed carrageenan product to meet the requirements of various applications. In the industrial production of carrageenan enzymatic hydrolysis, a reaction vessel is conventionally used as the core reaction equipment, and the reaction temperature must be precisely controlled within the suitable range of 40–55℃ during the hydrolysis process. However, existing reaction vessels have many technical defects in practical applications, seriously affecting the efficiency of carrageenan enzymatic hydrolysis and product quality. Firstly, the reactor is equipped with only one type of heater, which leads to excessively long preheating time for the carrageenan solution in the early stages of the enzymatic hydrolysis reaction. This directly prolongs the overall enzymatic hydrolysis cycle and reduces the production efficiency of the enzymatic hydrolysis process. Secondly, after the enzymatic hydrolysis reaction is completed, the temperature of the reaction system needs to be raised to the inactivation temperature of the carrageenan enzyme to terminate the reaction. However, the heating rate of the single heater is relatively slow, causing the carrageenan enzyme to continue to undergo enzymatic hydrolysis during the inactivation process, which damages the molecular structure of the product and reduces the quality of the finished carrageenan product. Thirdly, the carrageenan solution itself has a certain viscosity, and during the discharge process after the reaction, it is very easy to form residues on the inner wall of the reactor. If these residues cannot be completely removed, they will interfere with the enzymatic hydrolysis reaction of the next batch of carrageenan solution, affecting the stability of the production batch. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of difficult temperature control in existing carrageenan enzymatic hydrolysis reactions, including long preheating times, untimely interruption of the enzymatic hydrolysis reaction, and difficulty in emptying the carrageenan solution.

[0005] The present invention achieves the above-mentioned objective through the following technical solution: a carrageenan enzymatic hydrolysis device, comprising a base, two telescopic rods, and a reaction vessel. The two telescopic rods are respectively installed at the left and right ends of the upper surface of the base. The reaction vessel is installed at the top of the telescopic rods, and can be raised and lowered under the limiting action of the telescopic rods. The reaction vessel is used to store carrageenan solution. A sealing mechanism is installed at the top of the reaction vessel. A stirrer is installed at the center of the upper surface of the sealing mechanism to stir the carrageenan solution. A heating mechanism is installed at the center of the lower surface of the sealing mechanism to heat the carrageenan solution. Crossbeams are installed at both the front and rear ends of the reaction vessel. A traction mechanism is installed at the right end of the upper surface of the base. The traction mechanism is connected to the right end of the crossbeams by a pin. The traction mechanism pulls the crossbeams upward, causing the reaction vessel to accumulate force and achieve repeated descent of the reaction vessel.

[0006] Specifically, the sealing mechanism includes an upper cover installed on the upper surface of the reaction vessel. The center of the upper surface of the upper cover is fixedly connected to the stirrer. An inlet and a valve are respectively installed on the upper surface of the upper cover. A measuring cylinder is installed on the top of the valve, and the measuring cylinder contains carrageenanase. While serving as a seal for the reaction vessel, it can also add carrageenan solution into the reaction vessel and add carrageenanase in proportion.

[0007] Specifically, the heating mechanism includes a hollow tube installed at the center of the lower surface of the upper cover, a stirrer passing through the inner cavity of the hollow tube, a first motor installed at the top of the outer wall of the hollow tube, a first gear installed at the output end of the first motor, a self-rotating rotating component installed on the outer wall of the hollow tube via bearings, the rotating component being driven to rotate by the first gear, and several support components installed circumferentially at the bottom of the outer wall of the hollow tube, the rotation of the support components controlling the movement of the support components to change the heating efficiency of the carrageenan solution.

[0008] Specifically, the rotating assembly includes a sleeve mounted on the outer wall of a hollow tube via a bearing. An external gear ring is mounted on the top of the outer wall of the sleeve and meshes with a first gear. Under the drive of a first motor, the sleeve rotates at a predetermined angle through the transmission between the first gear and the external gear ring. The outer wall of the sleeve is provided with a first groove, a second groove and a third groove in sequence along the circumferential direction. By rotating the first, second, and third slides via the sleeve, the number of heaters used can be adjusted. This not only enables preheating of the carrageenan solution before enzymatic hydrolysis but also improves heating efficiency and facilitates the interruption of carrageenan enzymatic hydrolysis.

[0009] Specifically, the first, second, and third slides are composed of inclined sections and horizontal sections, and the inclined sections of the three slides have the same slope.

[0010] Specifically, the support assembly includes a support rod installed at the bottom of the outer wall of the hollow tube. A limit sleeve is vertically installed on the outside of the support rod. A lifting rod is inserted into the inner cavity of the limit sleeve. The outer wall of the lifting rod has a quadrilateral structure to prevent the lifting rod from rotating. A crossbar is installed at the top of the outer wall of the lifting rod. The three crossbars are respectively inserted into the first slide groove, the second slide groove and the third slide groove. A heater is installed at the bottom of the lifting rod to heat the carrageenan solution. This provides conditions for raising and lowering the heater.

[0011] Specifically, the traction mechanism includes a vertical plate mounted on the right end of the upper surface of the base. A second motor is mounted on the top rear side of the vertical plate, and a second gear is mounted on the output end of the second motor. A rotating shaft is mounted on the top of the vertical plate via a bearing. A third gear is mounted on the middle of the outer wall of the rotating shaft and meshes with the second gear. The rotating shaft is rotated by the second motor and driven by the second gear and the third gear. Cams are mounted on both the front and rear ends of the outer wall of the rotating shaft. A lever is mounted on the centrifugal end of the cam. As the rotating shaft rotates, the lever can make a circular motion. One end of a first connecting rod is sleeved on both the front and rear ends of the outer wall of the rotating shaft. The other end of the first connecting rod is mounted on one end of a second connecting rod via a pin. The other end of the second connecting rod is connected to the right end of the crossbeam via a pin. The circulation system stores energy in the reaction vessel, allowing it to fall under its own weight, thus preventing carrageenan residue from adhering to the walls through impact.

[0012] Specifically, the lever and the first connecting rod are in the same plane.

[0013] A method of using a carrageenan enzymatic hydrolysis device includes the following steps: Step 1: Add carrageenan solution into the reaction vessel through the feed inlet. Based on the volume of the carrageenan solution, store the carrageenan enzyme in a measuring cylinder according to the enzymatic hydrolysis ratio. Adjust the valve size to allow the carrageenan enzyme to be added continuously. As the stirrer stirs the carrageenan solution, the carrageenan enzyme disperses, realizing the enzymatic hydrolysis reaction of the carrageenan solution. Step two: The first motor provides rotational power to the first gear, and the first gear and the external gear ring drive enable the sleeve to rotate in three stages at a specified angle; Step 3: During the first rotation, the inclined surface of the first chute presses the crossbar downwards, and the lifting rod moves downwards along the limiting sleeve, allowing the heater to enter the carrageenan solution to keep the enzymatic reaction warm. Meanwhile, the horizontal sections of the second and third chutes keep the crossbar in a lateral limiting position. Step four: During the two-stage rotation, the horizontal section of the first chute keeps the position of the heater entering the carrageenan solution unchanged, while the inclined surface of the second chute presses the crossbar downwards, adding another heater into the carrageenan solution. The two heaters work simultaneously, shortening the preheating time of the hydrolysis reaction. Step 5: During the three-stage rotation, the inclined surface of the third chute presses the crossbar downwards, adding a heater to the carrageenan solution. Multiple heaters heat simultaneously, causing the carrageenan solution to heat up rapidly, shortening the inactivation time of carrageenanase and the interruption time of the enzymatic hydrolysis reaction. Step Six: Open the bottom of the reaction vessel to allow the hydrolyzed carrageenan solution to drain out. The second motor drives the second gear to rotate. Under the transmission of the second and third gears, the shaft rotates clockwise. The cam on the shaft drives the lever to make a clockwise circular motion. When the lever contacts the first connecting rod, the lever pushes the first connecting rod to rotate clockwise, causing the second connecting rod to pull the crossbeam upward and store force in the reaction vessel. Once the first connecting rod crosses the center line of the shaft and is no longer constrained by the lever, the reaction vessel descends under its own gravity. At the same time, the first and second connecting rods stretch the reaction vessel, and the resulting impact force promotes the flow of the carrageenan solution. Through the impact of the cyclical descent of the reaction vessel, the carrageenan solution is prevented from remaining.

[0014] The beneficial effects of this invention are: 1. This invention uses a first motor to drive a first gear to mesh with an external gear ring, causing the sleeve to rotate in three stages at a specified angle. The inclined sections of the first, second, and third slides press down on the corresponding crossbars in stages, achieving precise gradient control of the number of heaters used. A single heater can maintain a stable temperature for the enzymatic hydrolysis reaction. Dual heaters working simultaneously can significantly shorten the preheating time of the carrageenan solution and improve the overall efficiency of the carrageenan enzymatic hydrolysis process. Multiple heaters working simultaneously can rapidly heat the solution to the carrageenan enzyme inactivation temperature, timely and thoroughly terminating the enzymatic hydrolysis reaction, avoiding the problem of product quality degradation caused by excessive enzymatic hydrolysis, and effectively ensuring the quality of the finished carrageenan product.

[0015] 2. This invention uses a second motor to drive a second gear and a third gear to mesh and transmit power, causing the rotating shaft to rotate stably. The cam moves in a circular motion with the rotating shaft and moves the first connecting rod through a lever. The second connecting rod pulls the reaction vessel upward along the telescopic rod to store force. When the first connecting rod is released from the lever's constraint, the reaction vessel falls rapidly under its own weight. The impact force generated by the cyclical fall of the reaction vessel can effectively promote the rapid flow of carrageenan solution, completely avoiding the problem of carrageenan solution forming residues on the inner wall of the reaction vessel due to its own viscosity. This eliminates the interference of residues on subsequent batches of enzymatic hydrolysis reactions, significantly improves the stability of carrageenan enzymatic hydrolysis production batches, and ensures the consistency of product quality during continuous production. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the sealing mechanism of the present invention; Figure 3 This is a perspective view of the heating mechanism of the present invention; Figure 4 This is a perspective view of the rotating component of the present invention; Figure 5 This is a diagram showing the unfolded sleeve of the present invention; Figure 6 This is a perspective view of the traction mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Base; 2. Telescopic rod; 3. Reaction vessel; 4. Sealing mechanism; 5. Stirrer; 6. Heating mechanism; 7. Crossbeam; 8. Traction mechanism; 41. Top cover; 42. Feed inlet; 43. Valve; 44. Measuring cylinder; 61. Hollow tube; 62. First motor; 63. First gear; 64. Rotating assembly; 65. Support assembly; 641. Sleeve; 642. External gear ring; 643. First slide groove; 644. Second slide groove; 645. Third slide groove; 651. Support rod; 652. Limiting sleeve; 653. Lifting rod; 654. Crossbar; 655. Heater; 81. Vertical plate; 82. Second motor; 83. Second gear; 84. Rotating shaft; 85. Third gear; 86. Cam; 87. Lever; 88. First connecting rod; 89. Second connecting rod. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of the present invention easier to understand, the preferred embodiments of the present invention are further described below in conjunction with specific embodiments and accompanying drawings.

[0019] Please see Figures 1-7 This invention provides a carrageenan enzymatic hydrolysis device, comprising a base 1, two telescopic rods 2, and a reaction vessel 3. The two telescopic rods 2 are respectively installed at the left and right ends of the upper surface of the base 1. The reaction vessel 3 is installed at the top of the telescopic rods 2. Under the limiting action of the telescopic rods 2, the reaction vessel 3 can be raised and lowered. The reaction vessel 3 is used to store carrageenan solution. A sealing mechanism 4 is installed at the top of the reaction vessel 3. A stirrer 5 is installed at the center of the upper surface of the sealing mechanism 4 to stir the carrageenan solution. A heating mechanism 6 is installed at the center of the lower surface of the sealing mechanism 4 to heat the carrageenan solution. Crossbeams 7 are installed at both the front and rear ends of the reaction vessel 3. A traction mechanism 8 is installed at the right end of the upper surface of the base 1. The traction mechanism 8 is connected to the right end of the crossbeam 7 by a pin. The traction mechanism 8 pulls the crossbeam 7 upward, causing the reaction vessel 3 to accumulate force and achieve repeated descent of the reaction vessel 3.

[0020] As a preferred embodiment, the sealing mechanism 4 further includes an upper cover 41 installed on the upper surface of the reaction vessel 3. The center of the upper surface of the upper cover 41 is fixedly connected to the stirrer 5. An inlet 42 and a valve 43 are respectively installed on the upper surface of the upper cover 41. A measuring cylinder 44 is installed at the top of the valve 43. The measuring cylinder 44 stores carrageenanase. The valve 43 changes the amount of carrageenanase fed. Continuous feeding can make the carrageenanase and carrageenan solution fully mixed.

[0021] As a preferred embodiment, the heating mechanism 6 further includes a hollow tube 61 installed at the center of the lower surface of the upper cover 41. The stirrer 5 passes through the inner cavity of the hollow tube 61 to prevent the hollow tube 61 from interfering with the rotation of the stirrer 5. A first motor 62 is installed at the top of the outer wall of the hollow tube 61, and a first gear 63 is installed at the output end of the first motor 62. A rotating component 64 capable of rotation is installed on the outer wall of the hollow tube 61 through a bearing. The rotating component 64 is driven to rotate by the first gear 63. Several support components 65 are installed circumferentially at the bottom of the outer wall of the hollow tube 61. The rotation component 64 controls the movement of the support components 65 to change the heating efficiency of the carrageenan solution. The central vertical installation layout integrates the power components, transmission components and execution components on the hollow tube 61 and is set close to the center of the reaction vessel 3. This ensures uniform heating of the carrageenan solution without occupying too much effective volume of the reaction vessel 3, thus greatly improving space utilization.

[0022] As a preferred embodiment, the rotating assembly 64 further includes a sleeve 641 mounted on the outer wall of the hollow tube 61 via bearings. An external gear ring 642, meshing with the first gear 63, is mounted on the top of the outer wall of the sleeve 641. Driven by the first motor 62, the sleeve 641 rotates at a predetermined angle via the transmission between the first gear 63 and the external gear ring 642. The outer wall of the sleeve 641 is sequentially provided with a first groove 643, a second groove 644, and a third groove 645 along its circumference. The first groove 643, the second groove 644, and the third groove 645 are composed of inclined sections and horizontal sections, and the inclined sections of the three sections have the same slope. The sleeve 641 rotates in three stages. During each rotation, the first... The first slide 643 presses the crossbar 654 downwards at an angle, and the lifting rod 653 drives the heater 655 to descend. The horizontal sections of the second slide 644 and the third slide 645 keep the height of the crossbar 654 constant. At this time, one heater 655 is working. During the second rotation, the horizontal section of the first slide 643 keeps the height of the heater 655 constant, while the second slide 644 presses the crossbar 654 downwards at an angle, causing another heater 655 to descend. At this time, two heaters 655 are working. During the third rotation, the first slide 643 and the second slide 644 keep the height of the crossbar 654 constant, while the third slide 645 presses the crossbar 654 downwards. At this time, all three heaters 655 are working simultaneously. When it is necessary to reduce the heater 655, the external toothed ring 642 is rotated in opposite directions three times. During the first rotation, the inclined surface of the third slide groove 645 presses the crossbar 654 upward. During the second rotation, the inclined surface of the second slide groove 644 presses the crossbar 654 upward. During the third rotation, the inclined surface of the first slide groove 643 presses the crossbar 654 upward. Thus, the heater 655 is reduced. The rotation of the rotating component 64 controls the lifting and lowering of the support component 65, thereby achieving gradient control of the number of heaters 655 used. The heating efficiency can be flexibly adjusted according to different stages of the carrageenan enzymatic hydrolysis reaction. This not only solves the problem of long preheating time in traditional equipment, but also enables rapid temperature rise and deactivation after enzymatic hydrolysis, perfectly matching the temperature control requirements of the entire enzymatic hydrolysis process.

[0023] As a preferred embodiment, the support assembly 65 further includes a support rod 651 installed at the bottom of the outer wall of the hollow tube 61. A limiting sleeve 652 is vertically installed on the outside of the support rod 651. A lifting rod 653 is inserted into the inner cavity of the limiting sleeve 652. The outer wall of the lifting rod 653 has a quadrilateral structure to prevent the lifting rod 653 from rotating and to ensure that the crossbar 654 does not detach from the slide groove. A crossbar 654 is installed on the top of the outer wall of the lifting rod 653. The three crossbars 654 are respectively inserted into the first slide groove 643, the second slide groove 644, and the third slide groove 645. A heater 655 is installed at the bottom of the lifting rod 653 to heat the carrageenan solution. The surface of the heater 655 is coated with a polytetrafluoroethylene coating, which is a material with low surface energy and weak intermolecular forces, to prevent the carrageenan solution from sticking together and affecting the heating effect.

[0024] As a preferred embodiment, the traction mechanism 8 further includes a vertical plate 81 mounted on the right end of the upper surface of the base 1. A second motor 82 is mounted on the top rear side of the vertical plate 81, and a second gear 83 is mounted on the output end of the second motor 82. A rotating shaft 84 is mounted on the top of the vertical plate 81 via a bearing. A third gear 85, which meshes with the second gear 83, is mounted on the middle of the outer wall of the rotating shaft 84. The rotating shaft 84 is rotated by the second motor 82 through the transmission between the second gear 83 and the third gear 85. Cams 86 are mounted on both the front and rear ends of the outer wall of the rotating shaft 84, and a lever is mounted on the centrifugal end of the cam 86. As the rotating shaft 84 rotates, the lever 87 can make circular motion. The lever 87 and the first connecting rod 88 are in the same plane. When the lever 87 rotates clockwise, it can block the first connecting rod 88, so as to drag the first connecting rod 88 to rotate clockwise. The first connecting rod 88 is sleeved at both ends of the outer wall of the rotating shaft 84. The second connecting rod 89 is installed at the other end of the first connecting rod 88 through a pin. The other end of the second connecting rod 89 is connected to the right end of the crossbeam 7 through a pin. When the first connecting rod 88 rotates, it can pull the second connecting rod 89, so that the second connecting rod 89 pulls the reaction tank 3 to rise and store energy. The second motor 82 starts and drives the second gear 83 to rotate. The meshing third gear 85 drives the rotating shaft 84 to drive the lever 87 to make a clockwise circular motion. When the lever 87 moves in a circular motion and contacts the first connecting rod 88, it will block the first connecting rod 88 and drag it to rotate clockwise around the axis of the rotating shaft 84. During the rotation of the first connecting rod 88, it will pull the second connecting rod 89 to move upward. The second connecting rod 89 will further pull the reaction tank 3 to move upward, realizing the upward force storage of the reaction tank 3. When the first connecting rod 88 passes the center line position of the rotating shaft 84 with the rotation, it will be freed from the blockage and constraint of the lever 87. At this time, the reaction tank 3 will fall rapidly downward along the telescopic rod 2 under its own gravity. Through the cycle of force storage and falling, a continuous impact force is provided to the carrageenan solution in the reaction tank 3. Cam 86, lever 87, first connecting rod 88 and second connecting rod 89 all adopt a symmetrical dual-component design, and the traction of crossbeam 7 is synchronous on both sides, which avoids the tilting and jamming problems caused by unilateral force during the lifting and lowering of reaction tank 3, and ensures the structural safety of the equipment during operation.

[0025] Working principle: Step 1: Carrageenan solution is added to reaction vessel 3 through feed port 42. According to the volume of carrageenan solution, carrageenan enzyme is stored in measuring cylinder 44 according to the enzymatic hydrolysis ratio. The valve 43 is adjusted to allow the carrageenan enzyme to be added continuously. As the stirrer 5 stirs the carrageenan solution, the carrageenan enzyme is dispersed, and the enzymatic hydrolysis reaction of carrageenan solution is realized. Step 2: The first motor 62 provides rotational power to the first gear 63. The transmission between the first gear 63 and the external gear ring 642 enables the sleeve 641 to rotate in three stages according to a specified angle. Step 3: During a rotation, the inclined surface of the first slide 643 presses the crossbar 654 downward, and the lifting rod 653 moves downward along the limiting sleeve 652, allowing the heater 655 to enter the carrageenan solution to keep the enzymatic reaction warm. Meanwhile, the horizontal sections of the second slide 644 and the third slide 645 keep the crossbar 654 in a lateral limiting position. Step 4: During the two-stage rotation, the horizontal section of the first chute 643 keeps the position of the heater 655 entering the carrageenan solution unchanged, while the inclined surface of the second chute 644 presses the crossbar 654 downward, and then adds another heater 655 into the carrageenan solution. The two heaters 655 work simultaneously, shortening the preheating time of the hydrolysis reaction. Step 5: During the three-stage rotation, the inclined surface of the third slide 645 presses the crossbar 654 downward, adding a heater 655 to the carrageenan solution. Multiple heaters 655 heat simultaneously, allowing the carrageenan solution to heat up rapidly, shortening the inactivation time of carrageenan enzyme and shortening the interruption time of the enzymatic hydrolysis reaction. Step six: Open the bottom of reaction vessel 3 to allow the hydrolyzed carrageenan solution to drain out. The second motor 82 drives the second gear 83 to rotate. Under the transmission conditions of the second gear 83 and the third gear 85, the rotating shaft 84 rotates clockwise. The cam 86 on the rotating shaft 84 drives the lever 87 to make a clockwise circular motion. When the lever 87 contacts the first connecting rod 88, the lever 87 pushes the first connecting rod 88 to rotate clockwise, causing the second connecting rod 89 to pull the crossbeam 7 upward, storing force for the reaction vessel 3. Once the first connecting rod 88 crosses the center line of the rotating shaft 84 and is no longer constrained by the lever 87, the reaction vessel 3 descends under its own gravity. At the same time, the first connecting rod 88 and the second connecting rod 89 stretch the reaction vessel 3, and the resulting impact force promotes the flow of carrageenan solution. Through the impact of the cyclical descent of the reaction vessel 3, the residual carrageenan solution is prevented.

[0026] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A carrageenan enzymatic hydrolysis device, comprising a base (1), two telescopic rods (2), and a reaction vessel (3), wherein the two telescopic rods (2) are respectively installed at the left and right ends of the upper surface of the base (1), and the reaction vessel (3) is installed at the top of the telescopic rods (2), and the reaction vessel (3) can be raised and lowered under the limiting action of the telescopic rods (2), and the reaction vessel (3) is used to store carrageenan solution, characterized in that, The reaction vessel (3) is equipped with a sealing mechanism (4) at the top. A stirrer (5) is installed at the center of the upper surface of the sealing mechanism (4) to stir the carrageenan solution. A heating mechanism (6) is installed at the center of the lower surface of the sealing mechanism (4) to heat the carrageenan solution. A crossbeam (7) is installed at both the front and rear ends of the reaction vessel (3). A traction mechanism (8) is installed at the right end of the upper surface of the base (1). The traction mechanism (8) is connected to the right end of the crossbeam (7) by a pin. The traction mechanism (8) pulls the crossbeam (7) upward to store force in the reaction vessel (3) and achieve repeated descent of the reaction vessel (3).

2. The carrageenan enzymatic hydrolysis device according to claim 1, characterized in that, The sealing mechanism (4) includes an upper cover (41) installed on the upper surface of the reaction vessel (3). The center of the upper surface of the upper cover (41) is fixedly connected to the stirrer (5). The upper surface of the upper cover (41) is respectively equipped with a feed inlet (42) and a valve (43). A measuring cylinder (44) is installed at the top of the valve (43). The measuring cylinder (44) contains carrageenanase.

3. The carrageenan enzymatic hydrolysis device according to claim 2, characterized in that, The heating mechanism (6) includes a hollow tube (61) installed at the center of the lower surface of the upper cover (41). A stirrer (5) passes through the inner cavity of the hollow tube (61). A first motor (62) is installed on the top of the outer wall of the hollow tube (61). A first gear (63) is installed at the output end of the first motor (62). A rotating assembly (64) capable of rotation is installed on the outer wall of the hollow tube (61) through a bearing. The rotating assembly (64) is driven to rotate by the first gear (63). Several support assemblies (65) are installed circumferentially on the bottom of the outer wall of the hollow tube (61). The rotation assembly (64) controls the movement of the support assemblies (65) to change the heating efficiency of the carrageenan solution.

4. The carrageenan enzymatic hydrolysis device according to claim 3, characterized in that, The rotating assembly (64) includes a sleeve (641) mounted on the outer wall of the hollow tube (61) via a bearing. The top of the outer wall of the sleeve (641) is equipped with an external gear ring (642) that meshes with the first gear (63). Driven by the first motor (62), the sleeve (641) rotates at a predetermined angle through the transmission between the first gear (63) and the external gear ring (642). The outer wall of the sleeve (641) is provided with a first groove (643), a second groove (644), and a third groove (645) in sequence along the circumferential direction.

5. The carrageenan enzymatic hydrolysis device according to claim 4, characterized in that, The first slide (643), the second slide (644) and the third slide (645) are composed of inclined sections and horizontal sections, and the inclined sections of the three slides have the same slope.

6. The carrageenan enzymatic hydrolysis apparatus according to claim 5, characterized in that, The support assembly (65) includes a support rod (651) installed at the bottom of the outer wall of the hollow tube (61). A limiting sleeve (652) is vertically installed on the outside of the support rod (651). A lifting rod (653) is inserted into the inner cavity of the limiting sleeve (652). The outer wall of the lifting rod (653) has a quadrilateral structure to prevent the lifting rod (653) from rotating. A crossbar (654) is installed on the top of the outer wall of the lifting rod (653). The three crossbars (654) are respectively inserted into the first slide groove (643), the second slide groove (644), and the third slide groove (645). A heater (655) is installed at the bottom of the lifting rod (653) to heat the carrageenan solution.

7. The carrageenan enzymatic hydrolysis apparatus according to claim 6, characterized in that, The traction mechanism (8) includes a vertical plate (81) mounted on the right end of the upper surface of the base (1). A second motor (82) is mounted on the top rear side of the vertical plate (81). A second gear (83) is mounted on the output end of the second motor (82). A rotating shaft (84) is mounted on the top of the vertical plate (81) via a bearing. A third gear (85) is mounted on the middle of the outer wall of the rotating shaft (84) and meshes with the second gear (83). Powered by the second motor (82), the traction mechanism (8) drives the second gear (83) and the third gear (85) to engage with the second gear (83). 85) The transmission enables the rotation of the shaft (84). Cams (86) are installed at both ends of the outer wall of the shaft (84). A lever (87) is installed at the centrifugal end of the cam (86). As the shaft (84) rotates, the lever (87) can make circular motion. One end of the first connecting rod (88) is sleeved at both ends of the outer wall of the shaft (84). The other end of the first connecting rod (88) is installed with one end of the second connecting rod (89) through a pin. The other end of the second connecting rod (89) is connected to the right end of the crossbeam (7) through a pin.

8. The carrageenan enzymatic hydrolysis apparatus according to claim 7, characterized in that, The lever (87) and the first connecting rod (88) are in the same plane.

9. A method for enzymatic hydrolysis of carrageenan, applied in the enzymatic hydrolysis apparatus of carrageenan as described in claim 8, characterized in that, Includes the following steps: Step 1: Carrageenan solution is added to reaction vessel (3) through feed inlet (42). According to the volume of carrageenan solution, carrageenan enzyme is stored in measuring cylinder (44) according to the enzymatic hydrolysis ratio. Adjust valve (43) to allow carrageenan enzyme to be added continuously. As the stirrer (5) stirs the carrageenan solution, the carrageenan enzyme is dispersed, and the enzymatic hydrolysis reaction of carrageenan solution is realized. Step 2: The first motor (62) provides rotational power to the first gear (63), and the transmission between the first gear (63) and the external gear ring (642) enables the sleeve (641) to rotate in three stages according to a specified angle; Step 3: During a rotation, the inclined surface of the first chute (643) presses the crossbar (654) downward, and the lifting rod (653) moves downward along the limiting sleeve (652), allowing the heater (655) to enter the carrageenan solution to keep the enzymatic reaction warm. Meanwhile, the horizontal sections of the second chute (644) and the third chute (645) keep the crossbar (654) in a lateral limiting position. Step 4: During the two-stage rotation, the horizontal section of the first chute (643) keeps the position of the heater (655) entering the carrageenan solution unchanged, while the inclined surface of the second chute (644) presses the crossbar (654) downward, and then another heater (655) is added to the carrageenan solution. The two heaters (655) work at the same time, shortening the preheating time of the hydrolysis reaction. Step 5: During the three-stage rotation, the inclined surface of the third chute (645) presses the crossbar (654) downward, adding a heater (655) to the carrageenan solution. Multiple heaters (655) heat simultaneously, allowing the carrageenan solution to heat up rapidly, shortening the inactivation time of carrageenan enzyme and shortening the interruption time of the enzymatic hydrolysis reaction. Step six: Open the bottom of the reaction vessel (3) to allow the hydrolyzed carrageenan solution to drain out. The second motor (82) drives the second gear (83) to rotate. Under the transmission conditions of the second gear (83) and the third gear (85), the rotating shaft (84) rotates clockwise. The cam (86) on the rotating shaft (84) drives the lever (87) to make a clockwise circular motion. When the lever (87) contacts the first connecting rod (88), the lever (87) moves the first connecting rod (88) clockwise. Rotate to pull the crossbeam (7) upward with the second link (89) to store force in the reaction vessel (3). Once the first link (88) crosses the center line of the rotating shaft (84) and is no longer constrained by the lever (87), the reaction vessel (3) descends under its own gravity. At the same time, the first link (88) and the second link (89) stretch the reaction vessel (3), and the resulting impact force promotes the flow of carrageenan solution. Through the impact of the reaction vessel (3) falling in a cycle, the carrageenan solution is prevented from remaining.

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