Chitosan oligosaccharide preparation enzyme hydrolysis equipment

Abstract

This invention discloses an enzymatic hydrolysis device for preparing chitosan oligosaccharides, relating to the field of chitosan oligosaccharide preparation technology. The device includes a chassis, a support block slidably connected to the upper side of the chassis, a reaction vessel fixedly connected to the upper side of the support block, a feed hopper and a discharge pipe connected to the reaction vessel, a first pipe rotatably connected to the reaction vessel, a stirring rod arranged in a linear array and evenly distributed circumferentially connected to the first pipe, a second pipe rotatably connected to the upper side of the second pipe, a third pipe rotatably connected to the second and third pipes, both equipped with heat insulation layers, a first connecting shell connected to the third pipe, and a fourth pipe rotatably connected to the upper side of the first pipe and fixedly connected to the third pipe. This invention cools the materials in the reaction process, keeping the enzyme in a highly active state, thereby ensuring the reaction rate.

Description

Technical Field

[0001] This invention relates to the field of chitosan oligosaccharide preparation technology, and in particular to an enzymatic hydrolysis device for chitosan oligosaccharide preparation. Background Technology

[0002] Chitosan oligosaccharide is an oligosaccharide compound produced by the hydrolysis of chitosan. The preparation of chitosan oligosaccharide is generally achieved through enzymatic or acid hydrolysis of chitosan. During the enzymatic hydrolysis of chitosan, the temperature of the material needs to be controlled to ensure that the temperature of the material is at the temperature of highest enzyme activity, thereby ensuring the reaction rate.

[0003] When preparing chitosan oligosaccharides using existing equipment, the material needs to be continuously stirred. However, the breaking of chemical bonds during the decomposition of chitosan releases heat, causing the material temperature to rise, enzyme activity to decrease, and the reaction rate to slow down. Furthermore, as the reaction proceeds, the amount of chitosan gradually decreases, and the amount of heat released gradually decreases. If the heat dissipation rate remains constant, the material temperature will become too low, reducing enzyme activity and further decreasing the reaction rate. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides an enzymatic hydrolysis device for preparing chitosan oligosaccharides.

[0005] The technical solution of this invention is as follows: an enzymatic hydrolysis device for preparing chitosan oligosaccharides, comprising a chassis, a support block slidably connected to the upper side of the chassis, a reaction vessel fixedly connected to the upper side of the support block, the reaction vessel being connected to a feed hopper and a discharge pipe, a first pipe rotatably connected to the reaction vessel, the first pipe being connected to a stirring rod arranged in a linear array and evenly distributed circumferentially, the stirring rods arranged in a linear array and evenly distributed circumferentially being connected to a second pipe, a third pipe rotatably connected to the upper side of the second pipe, both the second and third pipes being provided with a heat insulation layer, the third pipe being connected to a... The first connecting shell has a fourth pipe rotatably connected to the upper side of the first pipe and fixedly connected to the third pipe. Both the first connecting shell and the fourth pipe are connected to a heat dissipation and circulation device. A drive motor is fixedly connected to the upper side of the reactor. The output shaft of the drive motor is rotatably connected to a transmission shell. The output shaft of the drive motor is fixedly connected to a first transmission blade that is symmetrically distributed and rotatably connected to the transmission shell. The inside of the transmission shell is fixedly connected to a second transmission blade that is symmetrically distributed and rotatably connected to the output shaft of the drive motor. The transmission shell and the first pipe are connected by a gear ring drive.

[0006] A further technical solution is provided in which an n-shaped cavity is provided inside the stirring rod, one end of the n-shaped cavity of the stirring rod is a water inlet and the other end is a water outlet, the water outlet of the n-shaped cavity of the stirring rod is connected to the first pipe, and the water inlet of the n-shaped cavity of the stirring rod is connected to the second pipe.

[0007] In a further technical solution, liquid is injected between the chassis and the load-bearing block, and a spring is installed. A first gate is slidably connected to the first connecting shell. A first fixed shell is fixedly connected to the upper side of the reactor. The first fixed shell is connected to the chassis via a hose. A first sliding rod is slidably connected to the upper side of the first fixed shell. A first sliding plate, fixedly connected to the first sliding rod, is slidably connected inside the first fixed shell. Liquid is injected between the side of the first sliding plate near the first sliding rod and the first fixed shell. A second fixed shell is fixedly connected to the upper side of the first sliding rod. A second sliding rod, fixedly connected to the first gate, is slidably connected to the second fixed shell.

[0008] In a further technical solution, a second sliding plate is slidably connected inside the second fixed shell and fixedly connected to the second sliding rod. Liquid is injected between the side of the second sliding plate near the second sliding rod and the second fixed shell, and a spring is provided between the second sliding plate and the second fixed shell.

[0009] In a further technical solution, the transmission shell is provided with symmetrically distributed through holes. In the chamber formed by the transmission shell, the first transmission blade, and the second transmission blade, the chamber adjacent to the through holes of the transmission shell is filled with liquid. A second connecting shell is fixedly connected to the upper side of the reactor via a support frame. The second connecting shell is rotatably connected to the transmission shell. The second connecting shell is connected to the second fixed shell via a flexible hose. The second connecting shell is connected to the symmetrically distributed through holes on the transmission shell.

[0010] A further technical solution includes a second gate arranged in a straight line and evenly distributed circumferentially. The second gate is slidably connected to the interior of the adjacent stirring rod near its inlet. A third fixed shell is fixedly connected to the exterior of the stirring rod near its inlet. A third sliding rod is slidably connected to the third fixed shell near the adjacent stirring rod. The third sliding rod is slidably connected to the adjacent stirring rod and passes through it before being fixedly connected to the adjacent second gate. A third sliding plate is slidably connected inside the third fixed shell and fixedly connected to the adjacent third sliding rod. Liquid is injected between the side of the third sliding plate near the adjacent third sliding rod and the adjacent third fixed shell.

[0011] In a further technical solution, a fourth fixed shell is fixedly connected to the stirring rod on the side near the adjacent third fixed shell. A fourth sliding plate is slidably connected inside the fourth fixed shell. Thermal expansion gas is injected between one side of the fourth sliding plate and the adjacent fourth fixed shell, and a tension spring is provided. Liquid is injected between the other side of the fourth sliding plate and the adjacent fourth fixed shell. The liquid-filled part of the fourth fixed shell is connected to the adjacent third fixed shell through a hose.

[0012] In a further technical solution, the fourth fixing shell is located on the traveling side adjacent to the stirring rod.

[0013] A further technical solution includes turbine blades arranged in a straight line and evenly distributed circumferentially. The turbine blades are rotatably connected to the interior of the adjacent stirring rod near its outlet. A gearbox is fixedly connected inside the stirring rod. The input end of the gearbox is fixedly connected to the adjacent turbine blade, and the output end of the gearbox is fixedly connected to a stirring blade located on the outside of the adjacent stirring rod.

[0014] A further technical solution is that the distance between adjacent stirring rods in the vertical direction is greater than the diameter of the stirring blade.

[0015] The beneficial effects of this technical solution are as follows:

[0016] This invention cools the materials in the reaction to maintain the enzyme in a highly active state, thereby ensuring the reaction rate.

[0017] By adjusting the overall flow rate of the cooling water according to the amount of material added, the heat generated during the material reaction can be carried away, thus preventing the release of heat during the material reaction from causing the overall temperature to rise and reducing enzyme activity.

[0018] As the reaction proceeds, the amount of material involved in the reaction gradually decreases, and the heat released decreases accordingly. At this point, it is appropriate to reduce the flow rate of the cooling water to avoid the cooling water cooling the material too quickly, which would cause the material temperature to drop too low, reduce enzyme activity, and affect the reaction rate.

[0019] By adjusting the flow rate of cooling water in each stirring rod, the cooling water can be used to specifically cool the material near the stirring rod.

[0020] By allowing the cooling water to flow back through pipe 1 after heat exchange and continue to exchange heat with the material in the center through pipe 1, heat accumulation in the material in the center is prevented from reducing enzyme activity, while improving the utilization rate of cooling water.

[0021] The stirring blades are rotated by cooling water, which further agitates the materials, making the mixture between the materials and enzymes more uniform and increasing the reaction rate. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0024] Figure 3 This is a three-dimensional structural cross-sectional view of the first communicating shell and the first gate, etc., of the present invention;

[0025] Figure 4 This is a three-dimensional structural cross-sectional view of the transmission housing and the second connecting housing of the present invention.

[0026] Figure 5 This is a three-dimensional structural cross-sectional view of the components such as tube No. 1 and tube No. 2 of the present invention;

[0027] Figure 6 This is a three-dimensional structural cross-sectional view of the stirring rod of the present invention;

[0028] Figure 7 This is a three-dimensional structural cross-sectional view of the second fixed shell and the second sliding rod, etc., of the present invention;

[0029] Figure 8 This is a three-dimensional structural cross-sectional view of the second gate and the third fixed shell, etc., of the present invention;

[0030] Figure 9 This is a three-dimensional structural diagram of the turbine fan blades and stirring blades of the present invention.

[0031] The markings in the attached diagram are as follows: 1-chassis, 2-supporting block, 3-reactor, 4-feed hopper, 5-discharge pipe, 6-pipe No. 1, 7-stirring rod, 8-pipe No. 2, 9-pipe No. 3, 10-pipe No. 4, 11-drive motor, 12-transmission housing, 13-transmission blade No. 1, 14-transmission blade No. 2, 15-first connecting housing, 16-first gate, 17-first fixed housing, 18-first sliding rod, 19-first sliding plate, 20-second fixed housing, 21-second sliding rod, 22-second sliding plate, 23-second connecting housing, 24-second gate, 25-third fixed housing, 26-third sliding rod, 27-third sliding plate, 28-fourth fixed housing, 29-fourth sliding plate, 30-turbine fan blade, 31-gearbox, 32-stirring blade. Detailed Implementation

[0032] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] Example 1: An enzymatic hydrolysis device for preparing chitosan oligosaccharides, such as... Figures 1-3 and Figures 5-7As shown, the system includes a base 1, which consists of an upper cylinder and a lower disc. A load-bearing block 2 is slidably connected to and sealed to the upper side of the cylinder of the base 1. A reaction vessel 3 is fixedly connected to the upper side of the load-bearing block 2. The reaction vessel 3 is connected to a feed hopper 4 and a discharge pipe 5. The feed hopper 4 is located on the upper left side of the reaction vessel 3. The bottom surface of the inner side of the reaction vessel 3 is designed as an inverted frustum shape to facilitate material discharge. The discharge pipe 5 is connected to the lowest point of the inverted frustum bottom surface of the reaction vessel 3. A first pipe 6 is rotatably connected to the upper side of the reaction vessel 3. The first pipe 6 passes through the upper part of the reaction vessel 3. The part of the first pipe 6 inside the reaction vessel 3 is connected to nine stirring rods 7 arranged in a straight line and evenly distributed circumferentially. The stirring rod 7 is connected to pipe 8 (number 2), which is located inside pipe 6 (number 1). The stirring rod 7 has an n-shaped cavity, with one end serving as an inlet and the other as an outlet. The inlet connects to pipe 8, and the outlet connects to pipe 6. When the stirring rod 7 rotates, the side closer to the inlet faces the material, while the side closer to the outlet faces away from the material. This ensures sufficient heat exchange between the cooling water entering the stirring rod 7 and the material, improving the utilization rate of the cooling water. Pipe 9 is rotatably connected to the upper side of pipe 8. Both pipes 8 and 9 are equipped with insulation layers to prevent heat exchange between the cooler and hotter cooling water. The front of pipe 9 is connected to the first... The first connecting shell 15 is connected to a heat dissipation circulation device, which is an existing device used to circulate cooling water and cool the used cooling water. The cooled water enters pipe 9 through the first connecting shell 15 and then participates in cooling the material again. Pipe 10 is rotatably connected to the upper side of pipe 6. Pipe 10 and pipe 9 are fixedly connected. Pipe 9 penetrates the side wall of pipe 10 and is connected to the heat dissipation circulation device. The used cooling water enters the heat dissipation circulation device through pipe 10 for cooling. Pipe 9 is the inlet pipe and pipe 10 is the outlet pipe. Thus, the cooling water after passing through the stirring rod 7 exits from pipe 6. 6. During the return flow, heat exchange continues with the material located in the middle, improving the utilization rate of cooling water. The upper right side of the reactor 3 is fixedly connected to the drive motor 11 by a support frame. The output shaft of the drive motor 11 is rotatably connected and sealed to the transmission housing 12. The output shaft of the drive motor 11 is rotatably connected to the transmission housing 12. The output shaft of the drive motor 11 passes through the middle of the upper side of the transmission housing 12. The part of the output shaft of the drive motor 11 located inside the transmission housing 12 is fixedly connected to two first transmission blades 13 that are symmetrically distributed on the left and right. The inner side wall of the transmission housing 12 is fixedly connected to two second transmission blades 14 that are symmetrically distributed front and back. The transmission housing 12 and the first tube 6 are connected by a gear ring.

[0034] like Figures 1-3 and Figure 7As shown, liquid is filled between the chassis 1 and the load-bearing block 2, and a spring is installed. This spring provides resistance for the downward movement of the load-bearing block 2. A first gate 16 is slidably connected and sealed within the first connecting shell 15, and the first gate 16 penetrates the lower side of the first connecting shell 15. A first fixed shell 17 is fixedly connected to the front of the upper side of the reactor 3. The first fixed shell 17 is connected to the cylinder of the chassis 1 through a hose. A first sliding rod 18 is slidably connected and sealed within the upper side of the first fixed shell 17, and a first sliding plate 1 is slidably connected and sealed within the first fixed shell 17. 9. The upper side of the first sliding plate 19 is fixedly connected to the lower side of the first sliding rod 18. Liquid is injected between the upper side of the first sliding plate 19 and the first fixed shell 17. When the load block 2 moves downward, the liquid in the cylinder of the chassis 1 is pressed into the space between the first fixed shell 17 and the first sliding plate 19 through the hose, so that the first sliding plate 19 moves downward. The upper side of the first sliding rod 18 is fixedly connected to the second fixed shell 20. The upper side of the second fixed shell 20 is slidably connected to and sealed with the second sliding rod 21. The upper side of the second sliding rod 21 is fixedly connected to the lower side of the first gate 16.

[0035] like Figure 1 , Figure 3 and Figure 7 As shown, a second sliding plate 22 is slidably connected and sealed inside the second fixed shell 20. The upper side of the second sliding plate 22 is fixedly connected to the lower side of the second sliding rod 21. Liquid is injected between the upper side of the second sliding plate 22 and the second fixed shell 20. A spring is provided between the lower side of the second sliding plate 22 and the second fixed shell 20. The spring is used to provide resistance for the downward movement of the second sliding plate 22.

[0036] like Figure 3 and Figure 4 As shown, the transmission housing 12 is provided with two symmetrically distributed through holes. One through hole is located on the right front side of the transmission housing 12, and the other through hole is located on the left rear side of the transmission housing 12. The transmission housing 12, the first transmission blade 13, and the second transmission blade 14 form four chambers. The right front and left rear chambers are filled with liquid. The upper side of the reactor 3 is fixed with an annular second connecting shell 23 by a support frame. The second connecting shell 23 is rotatably connected to the transmission housing 12 and sealed. The second connecting shell 23 is connected to the second fixed shell 20 by a hose. The second connecting shell 23 is connected to the two through holes on the transmission housing 12. When the first transmission blade 13 rotates, it squeezes the liquid in the adjacent chamber and drives the second transmission blade 14 to rotate. The liquid is squeezed into the second connecting shell 23 and then enters the second fixed shell 20 through the hose, causing the second sliding plate 22 to move downward.

[0037] When using this equipment to prepare chitosan oligosaccharides, the raw materials are first added to the reaction vessel 3 from the feed hopper 4. The reaction vessel 3 gradually moves downward, causing the support block 2 to move downward as well. The adjacent spring is gradually compressed, and the liquid between the base plate 1 and the support block 2 is squeezed out. Then, the liquid enters the first fixed shell 17 through the hose. The liquid in the first fixed shell 17 increases, squeezing the first sliding plate 19 and causing the first sliding rod 18 and its parts to move downward. The first sliding rod 18 drives the first gate 16 to move downward. At this time, the first connecting shell 15 is partially opened. The more material added, the more heat is generated by the material reaction, and the more cooling water is needed for heat dissipation. At the same time, the greater the downward distance of the first gate 16, the faster the flow rate of the cooling water through the first connecting shell 15 into the third pipe 9, thus cooling the material faster and ensuring the activity of the enzyme, allowing the reaction to proceed more quickly.

[0038] After the material is added to the reactor 3, the drive motor 11 and the heat dissipation circulation device are started. The drive motor 11 starts and drives the two first drive blades 13 to rotate. The two first drive blades 13 drive the two second drive blades 14 to rotate by squeezing the liquid in the adjacent chambers. The two second drive blades 14 drive the transmission shell 12 to rotate. The transmission shell 12 drives the first pipe 6 to rotate through the gear set. The first pipe 6 drives the stirring rod 7 on it to rotate, thereby stirring the material. During the stirring process, the stirring rod 7 is subjected to resistance, and the liquid between the first drive blade 13 and the second drive blade 14 is squeezed into the second connecting shell 23, and then enters the fixed shell 20 through the hose, squeezing the second sliding plate in the fixed shell 20. 22 drives the second sliding rod 21 to move downward and compresses the spring adjacent to the second sliding plate 22. At the same time, the heat dissipation circulation device sends cooling water into the first connecting shell 15, and then into the third pipe 9 through the first connecting shell 15. After passing through the third pipe 9, it enters the second pipe 8 and then enters the nine stirring rods 7. The stirring rods 7 exchange heat with the material to reduce the temperature of the material during the reaction, ensure the activity of the enzyme, and improve the reaction efficiency. The cooling water then enters the first pipe 6 from the stirring rods 7. After entering the first pipe 6, the cooling water continues to cool the material in the middle part of the reactor 3 through the first pipe 6. Then, it returns from the first pipe 6 to the heat dissipation circulation device through the fourth pipe 10 to cool the cooled water after heat exchange.

[0039] When the drive motor 11 starts to stir the material, there is a lot of material participating in the reaction initially, a lot of heat is released, and the material viscosity is high. During the stirring process, the stirring rod 7 experiences great resistance, which causes the first drive blade 13 to squeeze more liquid into the second connecting shell 23, and then into the second fixed shell 20 through the hose. The increase in liquid in the second fixed shell 20 squeezes the second sliding plate 22, which drives the second sliding rod 21 and the first gate 16 to move downward, thereby increasing the flow rate of cooling water and improving the heat dissipation effect on the material. As the reaction proceeds, the amount of material participating in the reaction gradually decreases, the heat released during the reaction decreases, the viscosity of the material decreases, and the resistance experienced by the stirring rod 7 decreases. Under the action of the spring in the second fixed shell 20, the second sliding plate 22 drives the first gate 16 to move upward gradually, reducing the flow rate of cooling water, thereby preventing the material temperature from being too low and affecting the enzyme activity. When the chitosan oligosaccharide preparation is completed, the drive motor 11 and the heat dissipation circulation device are turned off, and then the chitosan oligosaccharide is released from the discharge pipe 5.

[0040] Example 2: Based on Example 1, as follows Figure 2 , Figure 5 and Figure 8 As shown, it also includes nine second gates 24 arranged in a straight line and evenly distributed circumferentially. The second gates 24 are slidably connected and sealed to the interior of the adjacent stirring rod 7 near its inlet. The stirring rod 7 is fixedly connected to the exterior of its inlet side with a third fixed shell 25. The third fixed shell 25 is slidably connected and sealed to the side of the adjacent stirring rod 7 with a third sliding rod 26. The third sliding rod 26 passes through the side of the adjacent third fixed shell 25 near the adjacent stirring rod 7. The third sliding rod 26 is slidably connected and sealed to the adjacent stirring rod 7 and then fixed to the adjacent second gate 24 after passing through it. The third fixed shell 25 is slidably connected and sealed to a third sliding plate 27. The third sliding plate 27 is fixed to the adjacent third sliding rod 26. When the third sliding plate 27 moves, it drives the adjacent second gate 24 to move through the adjacent third sliding rod 26. Liquid is injected between the side of the third sliding plate 27 near the adjacent third sliding rod 26 and the adjacent third fixed shell 25.

[0041] like Figure 2 , Figure 5 and Figure 8As shown, a fourth fixed housing 28 is fixedly connected to the middle of the side of the stirring rod 7 near the adjacent third fixed housing 25 via a heat insulation rod. This heat insulation rod is used to prevent the cooling water inside the stirring rod 7 from affecting the thermal expansion gas inside the fourth fixed housing 28. The fourth fixed housing 28 is located on the traveling side of the adjacent stirring rod 7, so that the thermal expansion gas inside the fourth fixed housing 28 can monitor the temperature of the material that the adjacent stirring rod 7 is about to contact. A fourth sliding plate 29 is slidably connected and sealed inside the fourth fixed housing 28. The side of the fourth sliding plate 29 away from the adjacent stirring rod 7 is connected to the adjacent fourth fixed housing 28. A thermally expanding gas is injected between the two sides and a tension spring is installed. The thermally expanding gas is used to monitor the temperature of the nearby materials, and the tension spring is used to reset the adjacent fourth sliding plate 29. Liquid is injected between the side of the fourth sliding plate 29 near the adjacent stirring rod 7 and the adjacent fourth fixed shell 28. The liquid-filled part of the fourth fixed shell 28 is connected to the adjacent third fixed shell 25 through a hose. The expansion of the thermally expanding gas pushes the adjacent fourth sliding plate 29 to move towards the side near the adjacent stirring rod 7, squeezing the liquid in the adjacent fourth fixed shell 28 through the hose and into the adjacent third fixed shell 25.

[0042] like Figure 2 , Figure 5 and Figure 9 As shown, it also includes nine turbine blades 30 arranged in a straight line and evenly distributed circumferentially. Each of the nine turbine blades 30 is rotatably connected to the interior of an adjacent stirring rod 7 near the outlet. The axial direction of the turbine blades 30 is the same as the flow direction of the cooling water in the adjacent stirring rod 7, thereby causing the cooling water in the stirring rod 7 to drive the adjacent turbine blades 30 to rotate. A gearbox 31 is fixedly connected inside the stirring rod 7. The gearbox 31 is used to change the direction of rotation of the turbine blades 30 and output the rotation. The input end of the gearbox 31 is fixedly connected to the side of the adjacent turbine blade 30 near the first pipe 6. The output end of the gearbox 31 faces the side of the adjacent stirring rod 7 away from the adjacent third fixed shell 25. The output end of the gearbox 31 is fixedly connected to the stirring blade 32, which consists of a rotating shaft and blades. The rotating shaft of the stirring blade 32 is rotatably connected to the adjacent stirring rod 7 and sealed. The rotating shaft of the stirring blade 32 passes through the adjacent stirring rod 7. The blades of the stirring blade 32 are located on the outside of the adjacent stirring rod 7. The distance between two adjacent stirring rods 7 in the vertical direction is greater than the diameter of the stirring blade 32, thereby avoiding collision when two adjacent stirring blades 32 rotate in the vertical direction.

[0043] During the mixing process, different stirring rods 7 contact different positions of the material. The temperature of the material near adjacent stirring rods 7 is monitored by the thermal expansion gas inside the fourth fixed shell 28. When the temperature of the material near the fourth fixed shell 28 is higher, the volume of the thermal expansion gas inside the fourth fixed shell 28 expands more. The thermal expansion gas inside the fourth fixed shell 28 pushes the adjacent fourth sliding plate 29 a greater distance towards the adjacent stirring rod 7. The tension spring adjacent to the fourth sliding plate 29 is stretched, and the liquid inside the adjacent fourth fixed shell 28 is squeezed into the adjacent third sliding plate 27 through the hose. The increased liquid in the moving plate 27 compresses the adjacent third fixed shell 25, causing the adjacent third sliding rod 26 and the second gate 24 to move away from the adjacent stirring rod 7, thereby increasing the flow rate of cooling water in the adjacent stirring rod 7 and keeping the temperature of the material near the stirring rod 7 relatively stable. When the temperature of the material near the stirring rod 7 drops, the thermally expanded gas in the adjacent area contracts, and under the action of the tension spring in the fourth fixed shell 28, the adjacent fourth sliding plate 29 moves away from the adjacent stirring rod 7, thereby causing the fourth sliding plate 29 to drive the second gate 24 to reduce the flow rate of cooling water in the adjacent stirring rod 7.

[0044] After the cooling water enters the cavity near the adjacent second gate 24 through the inlet of the stirring rod 7, it turns and enters the cavity near the adjacent turbine blade 30, and then enters the first pipe 6 through the outlet. When the cooling water flows in the cavity near the adjacent turbine blade 30 in the stirring rod 7, the cooling water flows through the adjacent turbine blade 30, driving the adjacent turbine blade 30 to rotate. The turbine blade 30 drives the adjacent stirring blade 32 to rotate through the adjacent gearbox 31. The stirring blade 32 further agitates the material, thereby making the mixing between the material and the enzyme more uniform, thus improving the reaction rate.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An enzymatic hydrolysis device for preparing chitosan oligosaccharides, characterized in that, The system includes a chassis (1), a load-bearing block (2) slidably connected to the upper side of the chassis (1), a reaction vessel (3) fixedly connected to the upper side of the load-bearing block (2), a feed hopper (4) and a discharge pipe (5) connected to the reaction vessel (3), a first pipe (6) rotatably connected to the reaction vessel (3), a stirring rod (7) arranged in a straight line and evenly distributed circumferentially connected to the first pipe (6), the stirring rod (7) arranged in a straight line and evenly distributed circumferentially connected to a second pipe (8), a third pipe (9) rotatably connected to the upper side of the second pipe (8), both the second pipe (8) and the third pipe (9) are provided with a heat insulation layer, the third pipe (9) is connected to a first connecting shell (15), and the first pipe (6) The upper side of the reactor (3) is rotatably connected to the fourth pipe (10) which is fixed to the third pipe (9). The first connecting shell (15) and the fourth pipe (10) are both connected to the heat dissipation circulation device. The upper side of the reactor (3) is fixed to the drive motor (11). The output shaft of the drive motor (11) is rotatably connected to the transmission shell (12). The output shaft of the drive motor (11) is fixed to the first transmission blade (13) which is symmetrically distributed and rotatably connected to the transmission shell (12). The inside of the transmission shell (12) is fixed to the second transmission blade (14) which is symmetrically distributed and rotatably connected to the output shaft of the drive motor (11). The transmission shell (12) and the first pipe (6) are connected by a gear ring transmission. The stirring rod (7) is provided with an n-shaped cavity. One end of the n-shaped cavity of the stirring rod (7) is a water inlet and the other end is a water outlet. The water outlet of the n-shaped cavity of the stirring rod (7) is connected to the first pipe (6), and the water inlet of the n-shaped cavity of the stirring rod (7) is connected to the second pipe (8). It also includes a second gate (24) arranged in a straight line and evenly distributed around the circumference. The second gate (24) is slidably connected to the interior of the adjacent stirring rod (7) near its inlet. The stirring rod (7) is fixedly connected to the exterior of the side near its inlet with a third fixed shell (25). The third fixed shell (25) is slidably connected to the side near the adjacent stirring rod (7) with a third sliding rod (26). The third sliding rod (26) is slidably connected to the adjacent stirring rod (7) and passes through it before being fixedly connected to the adjacent second gate (24). The third fixed shell (25) is slidably connected to a third sliding plate (27) fixedly connected to the adjacent third sliding rod (26). Liquid is injected between the side of the third sliding plate (27) near the adjacent third sliding rod (26) and the adjacent third fixed shell (25). The stirring rod (7) is fixed to a fourth fixed shell (28) on the side near the adjacent third fixed shell (25). A fourth sliding plate (29) is slidably connected inside the fourth fixed shell (28). A thermal expansion gas is injected between one side of the fourth sliding plate (29) and the adjacent fourth fixed shell (28), and a tension spring is provided. Liquid is injected between the other side of the fourth sliding plate (29) and the adjacent fourth fixed shell (28). The part of the fourth fixed shell (28) filled with liquid is connected to the adjacent third fixed shell (25) through a hose. It also includes turbine blades (30) arranged in a straight line and evenly distributed around the circumference. The turbine blades (30) are rotatably connected to the interior of the adjacent stirring rod (7) near its outlet. A gearbox (31) is fixedly connected inside the stirring rod (7). The input end of the gearbox (31) is fixedly connected to the adjacent turbine blades (30). An stirring blade (32) is fixedly connected to the output end of the gearbox (31). The stirring blade (32) is located on the outside of the adjacent stirring rod (7).

2. The enzymatic hydrolysis device for preparing chitosan oligosaccharides according to claim 1, characterized in that, Liquid is injected between the chassis (1) and the load-bearing block (2) and a spring is provided. The first connecting shell (15) is slidably connected to the first gate (16). The upper side of the reactor (3) is fixedly connected to the first fixed shell (17). The first fixed shell (17) is connected to the chassis (1) through a hose. The upper side of the first fixed shell (17) is slidably connected to the first sliding rod (18). The first fixed shell (17) is slidably connected to the first sliding rod (18) and the first sliding plate (19) is fixedly connected to the first sliding rod (18). Liquid is injected between the side of the first sliding plate (19) near the first sliding rod (18) and the first fixed shell (17). The upper side of the first sliding rod (18) is fixedly connected to the second fixed shell (20). The second fixed shell (20) is slidably connected to the second sliding rod (21) fixedly connected to the first gate (16).

3. The enzymatic hydrolysis device for preparing chitosan oligosaccharides according to claim 2, characterized in that, The second fixed shell (20) is slidably connected to a second sliding plate (22) which is fixed to the second sliding rod (21). Liquid is injected between the side of the second sliding plate (22) near the second sliding rod (21) and the second fixed shell (20). A spring is provided between the second sliding plate (22) and the second fixed shell (20).

4. The enzymatic hydrolysis device for preparing chitosan oligosaccharides according to claim 3, characterized in that, The transmission shell (12) is provided with symmetrically distributed through holes. In the chamber formed by the transmission shell (12), the first transmission blade (13) and the second transmission blade (14), the chamber adjacent to the through holes of the transmission shell (12) is filled with liquid. The upper side of the reactor (3) is fixedly connected to the second connecting shell (23) by a support frame. The second connecting shell (23) is rotatably connected to the transmission shell (12). The second connecting shell (23) is connected to the second fixed shell (20) by a hose. The second connecting shell (23) is connected to the symmetrically distributed through holes on the transmission shell (12).

5. The enzymatic hydrolysis device for preparing chitosan oligosaccharides according to claim 1, characterized in that, The fourth fixed shell (28) is located on the traveling side adjacent to the stirring rod (7).

6. The enzymatic hydrolysis device for preparing chitosan oligosaccharides according to claim 5, characterized in that, The vertical distance between adjacent stirring rods (7) is greater than the diameter of the stirring blade (32).

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