Ultrasonic stirring kettle, control method and application

Abstract

The present invention belongs to the technical field of stirring kettles, and discloses an ultrasonic stirring kettle, a control method and an application, including a stirring kettle body, a stirring device, a filtering device and an ultrasonic combination device; the stirring device is arranged inside the stirring kettle body, and is used to stir the reaction materials; the filtering device is installed at the lower end inside the stirring kettle body, and is used to filter and separate the reacted materials; a plurality of ultrasonic combination devices are fixed at the lower end of the filtering device, and the ultrasonic combination device is used to drive the filter screen of the filtering device to vibrate during filtering and separation, and to clean the filter screen after filtering and separation. The present invention sets the filtering device and the stirring device as one unit, which reduces the occupied space and saves the manufacturing cost; the enzyme catalytic reaction and separation can be carried out in only one device, which shortens the reaction cycle, improves the production efficiency and reduces the loss rate of the enzyme carrier; by setting the ultrasonic combination device, the filtering effect is enhanced and the filter screen blockage is cleaned.

Description

Technical Field

[0001] The present invention belongs to the technical field of stirring kettles, and particularly relates to an ultrasonic stirring kettle, a control method and an application thereof. Background Art

[0002] Immobilized enzymes, that is, enzymes artificially fixed on carriers, are in a locked state within a certain space, can continuously carry out reactions, and the enzymes after the reaction can be recovered and reused. Compared with free enzymes, immobilized enzymes not only retain the catalytic characteristics of the enzymes, but also overcome the deficiencies of free enzymes, and have the advantages of strong stability, low environmental sensitivity, being reusable or continuous, being easy to separate from reaction products, and being suitable for multi-enzyme reactions. At present, many important achievements have been made in the theoretical and applied research of immobilized enzymes, and they have been widely used in the fields of food, medicine, chemical engineering, etc.

[0003] In traditional processes, after the reaction of immobilized enzymes in the reactor is completed, the reaction products and enzyme carrier particles are transported to a filter for filtration and separation, and then the enzyme carrier particles are transported back into the reactor for the next batch of reactions. The filtration method of traditional filters is single, generally using the method of sieve plate filtration, which has a long filtration time, poor separation effect, and the sieve plate is easy to block after long-term use. In addition, the transportation pipeline between the reactor and the filter is long, and as the capacity of the reactor increases, the number of enzyme carrier particles input each time also increases, so that workers need to carry a large amount of enzyme carrier particles each time, with a large labor intensity and long time consumption, thus prolonging the reaction cycle and reducing the production efficiency; moreover, the loss of enzyme carrier particles will also occur during the process of disassembling the sieve plate.

[0004] Through the above analysis, the problems and defects existing in the prior art are as follows:

[0005] (1) The filtration method of traditional filters is single, generally using the method of sieve plate filtration, which has a long filtration time, poor separation effect, and the sieve plate is easy to block after long-term use.

[0006] (2) The transportation pipeline between the reactor and the filter is long, resulting in a large labor intensity and long time consumption for workers, prolonging the reaction cycle, reducing the production efficiency, and the loss of enzyme carrier particles will also occur during the process of disassembling the sieve plate. Summary of the Invention

[0007] In view of the problems existing in the prior art, the present invention provides an ultrasonic stirring kettle, a control method and an application thereof.

[0008] The present invention is realized as follows. An ultrasonic stirring kettle is composed of a stirring kettle main body, a stirring device, a filtering device and an ultrasonic combination device;

[0009] The stirring device is arranged inside the stirring kettle main body and is used for stirring reaction materials;

[0010] The filtering device is installed at the lower end inside the main body of the stirring kettle and is used for filtering and separating the reacted materials.

[0011] A plurality of ultrasonic combination devices are fixed at the lower end of the filtering device. The ultrasonic combination devices are used to drive the filter screen of the filtering device to vibrate during the filtering and separation process, and to clean the filter screen after the filtering and separation.

[0012] Furthermore, the main body of the stirring kettle includes a lower head, a cylinder body, an upper head, a cylinder flange, a head flange, an ear seat, and a support rib.

[0013] The lower head is arranged at the bottom of the main body of the stirring kettle and is of a flat bottom head structure. A groove one is provided along the circumference on the upper edge of the lower head, and the filtering device is arranged above the groove one. A circular groove two is also provided on the upper surface of the bottom surface of the lower head, and a through hole is provided at the lower end of the groove two to penetrate through the lower head. The lower head is also provided with a discharge port. The upper head is provided with a feed port. The support ribs are fixed on the outer side of the cylinder body, and a plurality of the ear seats are fixed on the outer side of the support ribs and are circumferentially equidistantly distributed. The upper end of the cylinder body is integrally connected with the upper head, and the lower end of the cylinder body is connected with the lower head through the cylinder flange and the head flange.

[0014] Furthermore, the filtering device includes an upper filter screen flange and a lower filter screen flange. A filter screen support frame is arranged between the upper filter screen flange and the lower filter screen flange. A filter screen is fixedly arranged on the upper surface of the filter screen support frame. The filter screen is a 316L sintered mesh, and the filter screen support frame is in a hexagonal petal shape and is made of stainless steel.

[0015] Furthermore, the ultrasonic combination device includes a first straight pipe and a second straight pipe. The second straight pipe is concentrically arranged with the first straight pipe.

[0016] The first straight pipe is of a trapezoidal thin-walled circular pipe structure. The upper end is fixedly sealed with the filter screen support frame, and the lower end is fixedly sealed with the upper surface of the bottom surface of the lower head, forming a cavity one. The second straight pipe is of a combined thin-walled circular pipe structure of an inverted trapezoid and an elliptical cylinder. The upper end is fixedly sealed with the lower surface of the bottom surface of the lower head, and the lower end is an elliptical opening, forming a cavity two.

[0017] Furthermore, inside the cavity one, the groove two and the through hole in the lower head are both concentrically arranged with the first straight pipe. An ultrasonic transducer is also arranged inside the cavity one. A push rod is fixed at the bottom of the ultrasonic transducer. The push rod includes a round rod, a limiting flange, and a handle. The limiting flange is of a small elliptical cylinder structure and divides the round rod into upper and lower sections, and is embedded in the elliptical cavity of the second straight pipe. The push rod pushes the ultrasonic transducer to closely adhere to the filter screen support frame upward or to closely adhere to the groove two downward.

[0018] Furthermore, a sealing assembly is provided at the junction of the first cavity and the second cavity. The sealing assembly includes a vent hole that penetrates from the first cavity to the second cavity. A gas plug is provided at the end of the vent hole, and the gas plug is connected to the inlet pipe of the sealing air ring. The sealing air ring is fixed to the sealing air ring bracket, and the sealing air ring bracket is circular and concentric with the first straight pipe;

[0019] A pressure relief assembly is also provided at the junction of the first cavity and the second cavity. The pressure relief assembly includes a pressure relief hole that penetrates from the first cavity to the second cavity. A pressure relief pipe is connected to the end of the pressure relief hole, and the main body of the pressure relief pipe is located in the trapezoidal cavity of the second cavity and penetrates the cavity wall surface to be connected to an external pressure relief valve.

[0020] Furthermore, the short side distance between the trapezoidal cavities of the first cavity and the second cavity is L1, and the distance between the upper surface of the ultrasonic transducer and the lower surface of the limiting flange is L2, satisfying L1 = L2; the distance between the bottom surface of the second groove and the lower surface of the second straight pipe is S1, and the distance between the lower surface of the ultrasonic transducer and the upper surface of the limiting flange is S2, satisfying S1 = S2.

[0021] Furthermore, the stirring device includes a motor, a motor bracket, a stirring shaft, and a stirring paddle.

[0022] The motor is fixed to the upper end of the stirring kettle body through the motor bracket. The stirring shaft is connected to the output shaft of the motor through a coupling. The stirring paddle is fixed to the lower end of the stirring shaft and is located inside the stirring kettle body.

[0023] Another object of the present invention is to provide a control method for implementing the ultrasonic stirring kettle. The control method of the ultrasonic stirring kettle includes:

[0024] After the feeding is completed, the motor drives the stirring shaft and the stirring paddle inside the stirring kettle body to rotate to stir the reaction materials;

[0025] After the reaction is completed, push the push rod upward to make the ultrasonic transducer closely adhere to the filter screen support frame. At the same time, part of the gas in the first cavity is pressed into the sealing air ring through the gas plug by the vent hole to prevent the gas in the first cavity from leaking; thus, a negative pressure is formed in the first cavity, making the ultrasonic transducer and the filter screen support frame tightly pressed and adhered. Rotate the handle, and the limiting flange is stuck at the junction of the trapezoidal cavity and the elliptical cylinder cavity to fix the vertical direction of the push rod;

[0026] Open the discharge port to start filtration separation. At the same time, externally control the ultrasonic transducer to select the vibration frequency, and drive the filter screen to generate high-frequency vibration through the filter screen support frame for filtration;

[0027] After the filtration is completed, open the external air release valve, the sealing air ring deflates, the negative pressure in the first cavity disappears, rotate the handle to reset it, pull down the push rod to make the ultrasonic transducer close to the second groove, rotate the handle, and the limit flange is stuck at the opening of the second cavity to fix the push rod vertically.

[0028] Fill the main body of the stirring kettle with clean water until the liquid level is higher than the filtration device, externally control the ultrasonic transducer to select the cleaning frequency, drive the lower head to generate high-frequency vibration, generate a large number of microbubbles due to the cavity effect, and combine the cavitation effect of ultrasonic waves to clean the blockage of the filter mesh.

[0029] Another object of the present invention is to provide an application of the ultrasonic stirring kettle in enzyme catalysis.

[0030] First, in view of the technical problems existing in the above-mentioned prior art and the difficulty of solving this problem, closely combined with the technical solution to be protected by the present invention and the results and data during the R & D process, etc., analyze in detail and deeply how the technical solution of the present invention solves the technical problems and the creative technical effects brought after solving the problems. The specific description is as follows:

[0031] The present invention integrally sets the filtration device and the stirring device. In only one device, the enzyme-catalyzed reaction and separation can be carried out, and there is no need to repeatedly transport the immobilized enzyme between the reactor and the filter. At the same time, the combined function of ultrasonic vibration and ultrasonic cleaning is first applied to the field of enzyme reaction kettles, and the ultrasonic combined device and the control method of the ultrasonic stirring kettle are innovatively designed.

[0032] Second, regarding the technical solution as a whole or from the perspective of the product, the technical effects and advantages of the technical solution to be protected by the present invention are as follows:

[0033] The present invention integrally sets the filtration device and the stirring device, reducing the floor space, saving the manufacturing cost, shortening the reaction cycle, improving the production efficiency, and reducing the loss rate of the enzyme carrier.

[0034] At the same time, by using the high-frequency resonance principle of ultrasonic waves and the cavity effect, cavitation effect, etc., it plays a role in improving the filtration effect and cleaning the blockage of the filter mesh. The complex ultrasonic vibration and cleaning functions can be realized through a simple structure and simple operation, reducing the operation difficulty and saving the process cost.

[0035] Third, as the creative auxiliary evidence of the claims of the present invention, it is also reflected in the following important aspects:

[0036] (1) The technical solution of the present invention fills the domestic and foreign industry technical gaps:

[0037] The present invention innovatively integrates ultrasonic vibration and ultrasonic cleaning into one device, improving the utilization efficiency and achieving the effect of energy conservation.

[0038] (2) Whether the technical solution of the present invention solves the technical problems that people have been eager to solve but have never succeeded in:

[0039] By integrating the filtering device and the stirring device, and combining the high-frequency resonance principle, cavity effect, and cavitation effect of ultrasonic waves, the present invention designs an ultrasonic stirring kettle with a simple structure, saving costs, shortening the reaction cycle, improving production efficiency, and effectively solving the technical problems existing in the prior art. Brief Description of the Drawings

[0040] Figure 1 is a schematic structural diagram of the ultrasonic stirring kettle provided by an embodiment of the present invention;

[0041] Figure 2 is a distribution diagram of the stirring device, filtering device, and ultrasonic combination device provided by an embodiment of the present invention;

[0042] Figure 3 is a schematic structural diagram of the filtering device provided by an embodiment of the present invention;

[0043] Figure 4 is a front view of the ultrasonic combination device (vibrating filter screen state) provided by an embodiment of the present invention;

[0044] Figure 5 is a cross-sectional view of the ultrasonic combination device (vibrating filter screen state) provided by an embodiment of the present invention;

[0045] Figure 6 is an enlarged schematic diagram of the P position in the cross-sectional view of the ultrasonic combination device (vibrating filter screen state) provided by an embodiment of the present invention;

[0046] Figure 7 is a front view of the ultrasonic combination device (cleaning filter screen state) provided by an embodiment of the present invention;

[0047] Figure 8 is a cross-sectional view of the ultrasonic combination device (cleaning filter screen state) provided by an embodiment of the present invention;

[0048] Figure 9 is a cross-sectional view of the ultrasonic combination device (cleaning filter screen state) provided by an embodiment of the present invention in the A direction;

[0049] Figure 10 is a schematic structural diagram of the push rod provided by an embodiment of the present invention;

[0050] Figure 11 is a front view of the push rod provided by an embodiment of the present invention;

[0051] Figure 12 It is a schematic structural diagram of the sealing air ring provided by an embodiment of the present invention;

[0052] In the figure: 1. Stirring kettle body; 11. Lower head; 12. Cylinder; 13. Upper head; 131. Feed inlet; 14. Cylinder flange; 15. Head flange; 16. Ear seat; 17. Support rib; 2. Stirring device; 21. Motor; 22. Motor bracket; 23. Stirring shaft; 24. Stirring paddle; 3. Filter device; 31. Upper flange of filter net; 32. Lower flange of filter net; 33. Support frame of filter net; 34. Filter net; 4. Ultrasonic combination device; 41. First straight pipe; 42. Second straight pipe; 43. Ultrasonic transducer; 44. Push rod; 441. Round rod; 442. Limit flange; 443. Handle; 45. Sealing component; 451. Vent hole; 452. Air plug; 453. Sealing air ring; 454. Support bracket of sealing air ring; 46. Air leakage component; 461. Air leakage hole; 462. Air leakage pipe; 463. External air leakage valve. Detailed implementation manners

[0053] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] This part is an explanatory embodiment that expands and explains the technical solutions of the claims in order to enable those skilled in the art to fully understand how the present invention is specifically implemented.

[0055] As Figure 1 、 Figure 2 shown, the ultrasonic stirring kettle provided by the embodiment of the present invention is composed of a stirring kettle body 1, a stirring device 2, a filtering device 3, and an ultrasonic combination device 4;

[0056] The filtering device 3 is arranged at the lower end inside the stirring kettle body 1, and the stirring device 2 is arranged at the upper end. Six groups of the ultrasonic combination devices 4 are evenly arranged at the lower end of the filtering device 3;

[0057] The bottom of the stirring kettle body 1 is provided with a lower head 11, which is a flat bottom head structure, facilitating the installation of the ultrasonic combination device 4. A groove 1 is provided along the circumference on the upper edge of the lower head 11, and the filtering device 3 is arranged above the groove 1 to support the circumferential edge of the filtering device 3;

[0058] As Figure 3 shown, the filtering device 3 includes an upper flange 31 of the filter net, a lower flange 32 of the filter net, a support frame 33 of the filter net is arranged therebetween, and a filter net 34 is fixedly arranged on the upper surface of the support frame 33 of the filter net;

[0059] As Figures 4 - 9 shown, the ultrasonic combination device 4 includes a first straight pipe 41 and a second straight pipe 42. The first straight pipe 41 is a trapezoidal thin-walled circular pipe structure, with its upper end fixedly sealed to the filter screen support frame 33 and its lower end fixedly sealed to the upper surface of the bottom surface of the lower head 11, forming a first cavity; the second straight pipe 42 is a combined thin-walled circular pipe structure of an inverted trapezoid and an elliptical cylinder, with its upper end fixedly sealed to the lower surface of the bottom surface of the lower head 11 and its lower end being an elliptical opening, forming a second cavity. The second straight pipe 42 is concentrically arranged with the first straight pipe 41; inside the first cavity, a circular groove two is further provided on the upper surface of the bottom surface of the lower head 11, and a through hole is provided at the lower end of the circular groove two to penetrate through the lower head 11. Both the groove two and the through hole are concentrically arranged with the first straight pipe 41;

[0060] An ultrasonic transducer 43 is provided inside the first cavity. A push rod 44 is fixedly provided at the bottom of the ultrasonic transducer 43. As Figures 10 - 11 shown, the push rod 44 includes a round rod 441, a limit flange 442 and a handle 443. The limit flange 442 is a small elliptical cylinder structure, which divides the round rod 441 into upper and lower sections and can just be embedded into the elliptical cavity of the second straight pipe 42; the push rod 44 can push the ultrasonic transducer 43 upward to closely adhere to the filter screen support frame 33 or downward to closely adhere to the groove two, thereby realizing the functions of ultrasonic vibration and ultrasonic cleaning.

[0061] A sealing assembly 45 is provided at the junction of the first cavity and the second cavity. The sealing assembly includes a ventilation hole 451, which penetrates from the first cavity to the second cavity. An air plug 452 is provided at the end of the ventilation hole 451. The air plug 452 is connected to the intake pipe of a sealing air ring 453. The structure of the sealing air ring 453 is as Figure 12 shown, and it is fixedly arranged on a sealing air ring support 454. The sealing air ring support 454 is circular and concentrically arranged with the first straight pipe 41, thereby realizing the sealing and pressing functions during ultrasonic vibration.

[0062] A deflation assembly 46 is also provided at the junction of the first cavity and the second cavity. The deflation assembly includes a deflation hole 461, which penetrates from the first cavity to the second cavity. A deflation pipe 462 is connected to the end of the deflation hole 461. The main body of the deflation pipe 462 is located in the inverted trapezoidal cavity of the second cavity and penetrates through the cavity wall surface to be connected to an external deflation valve 463, thereby realizing the deflation function of the first cavity after ultrasonic vibration.

[0063] The short side distance between the trapezoidal cavities of cavity one and cavity two is L1, and the distance between the upper surface of the ultrasonic transducer 43 and the lower surface of the limiting flange 442 is L2, satisfying L1 = L2; the distance between the bottom surface of groove two and the lower surface of the second straight pipe 42 is S1, and the distance between the lower surface of the ultrasonic transducer 43 and the upper surface of the limiting flange 442 is S2, satisfying S1 = S2. Only in this way can the functions of the ultrasonic combination device be realized.

[0064] The filter screen 34 is a 316L sintered mesh, and the filter screen support frame 33 is in the shape of a hexagonal petal and is made of stainless steel.

[0065] The main body of the stirring kettle includes a lower head 11, a cylinder 12, an upper head 13, a cylinder flange 14, a head flange 15, an ear seat 16, and a support rib 17; the lower head 11 is provided with a discharge port 111, and the upper head 13 is provided with a feed port 131; the support rib 17 is fixed on the outside of the cylinder 12, and a plurality of ear seats 16 are fixed on the outside of the support rib 17 and are circumferentially equidistributed. The upper end of the cylinder 12 is integrally connected to the upper head 13, and the lower end of the cylinder 12 is connected to the lower head 11 through the cylinder flange 14 and the head flange 15.

[0066] The stirring device 2 includes a motor 21, a motor support 22, a stirring shaft 23, and a stirring paddle 24.

[0067] In order to prove the creativity and technical value of the technical solution of the present invention, this part is an application embodiment of the technical solution of the claim on a specific product or related technology.

[0068] The control method of the ultrasonic stirring kettle provided by the embodiment of the present invention includes:

[0069] Step 1, after the feeding is completed, the motor 21 drives the stirring shaft 23 and the stirring paddle 24 inside the main body 1 of the stirring kettle to rotate for stirring the reaction materials.

[0070] Step 2, after the reaction is completed, push the push rod 44 upward to make the ultrasonic transducer 43 closely adhere to the filter screen support frame 33. At the same time, part of the gas in cavity one is pressed into the sealing air ring 453 through the vent hole 421 by the air plug 452 to prevent the gas in cavity one from leaking; thus, a negative pressure is formed in cavity one, so that the ultrasonic transducer 43 and the filter screen support frame 33 are tightly pressed and adhered. Rotate the handle 443, and the limiting flange 442 is stuck at the junction of the inverted trapezoidal cavity and the elliptical cylindrical cavity to realize the vertical fixation of the push rod 44.

[0071] Step 3, open the discharge port 111 to start filtration separation. At the same time, select the vibration frequency of the external control ultrasonic transducer 43, and drive the filter screen 34 to generate high-frequency vibration through the filter screen support frame 33 to enhance the filtration effect.

[0072] Step 4: After the filtration is completed, open the external air release valve 463 to release the air in the sealing air ring 453, so that the negative pressure in Chamber 1 disappears. Rotate the handle 443 to reset it, pull down the push rod 44 to make the ultrasonic transducer 43 closely adhere to the second groove, and then rotate the handle 443. The limit flange 442 is stuck at the open end of Chamber 2 to achieve the vertical fixation of the push rod 44.

[0073] Step 5: Fill the main body 1 of the stirring kettle with clean water until the liquid level is higher than the filtration device 3. Select the cleaning frequency for the externally controlled ultrasonic transducer 43 to drive the lower head 11 to generate high-frequency vibration. A large number of microbubbles are generated by the cavity effect, and the cleaning effect on the blockage of the filter mesh 34 is achieved by combining the cavitation effect of the ultrasonic wave.

[0074] It should be noted that the implementation mode of the control method of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware part can be realized by using special logic; the software part can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or special designed hardware. Those of ordinary skill in the art can understand that the above-mentioned devices and methods can be realized by using computer-executable instructions and / or included in the processor control code. For example, such code is provided on a carrier medium such as a disk, CD, or DVD-ROM, a programmable memory such as a read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. The devices and modules of the present invention can be realized by the hardware circuit of programmable hardware devices such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips and transistors, or programmable logic devices such as field programmable gate arrays, or can be realized by software executed by various types of processors, or can be realized by a combination of the above hardware circuits and software, such as firmware.

[0075] The above is only the specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention by those skilled in the art within the technical scope disclosed by the present invention shall be covered by the protection scope of the present invention.

Claims

1. An ultrasonic stirred tank, characterized in that: The ultrasonic stirring kettle is composed of a stirring kettle body, a stirring device, a filtering device and an ultrasonic combination device; The stirring device is arranged inside the stirring kettle body and is used to stir the reaction materials; The filtering device is installed at the lower end of the stirring kettle body, and is used to filter and separate the reacted materials; the filtering device comprises a filter upper flange and a filter lower flange, a filter support frame is provided between the filter upper flange and the filter lower flange, and a filter is fixedly provided on the upper surface of the filter support frame; A plurality of ultrasonic assembly devices are fixed at the lower end of the filtering device, and the ultrasonic assembly devices are used to drive the filter screen of the filtering device to vibrate during filtering and separation, and to clean the filter screen after filtering and separation; The stirring kettle body comprises a lower head, a cylinder, and an upper head. The lower head is arranged at the bottom of the cylinder and is a flat-bottomed head structure. A groove 1 is arranged circumferentially on the upper edge of the lower head, and the filtering device is arranged on the groove 1. A circular groove 2 is also arranged on the upper surface of the bottom wall of the lower head, and a through hole is arranged at the lower end of the groove 2 to penetrate the lower head. The ultrasonic combination device comprises a first straight tube and a second straight tube, wherein the second straight tube is arranged concentrically with the first straight tube; The first straight tube is a trapezoidal thin-walled circular tube structure, the upper end of which is fixedly sealed with the filter screen support frame, and the lower end of which is fixedly sealed with the upper surface of the bottom wall of the lower head, forming a cavity 1; the second straight tube is a thin-walled circular tube structure combined with an inverted trapezoid and an elliptical column, the upper end of which is fixedly sealed with the lower surface of the bottom wall of the lower head, and the lower end is an elliptical opening, forming a cavity 2; In the cavity one, the groove two and the through hole in the lower head are arranged concentrically with the first straight tube; an ultrasonic transducer is also arranged in the cavity one, and a push rod is fixed at the bottom of the ultrasonic transducer, and the push rod comprises a round rod, a limit flange, and a handle, and the limit flange is a small elliptical column structure, which divides the round rod into two upper and lower sections and is embedded in the elliptical cavity of the second straight tube; the push rod pushes the ultrasonic transducer upward to be close to the filter screen support frame, or downward to be close to the groove two; A sealing component is provided at the junction of the cavity one and the cavity two, and the sealing component includes a vent hole, and the vent hole runs through the cavity one to the cavity two, and an air plug is provided at the end of the vent hole, and the air plug is connected to the air inlet pipe of the sealing air ring, and the sealing air ring is fixed to the sealing air ring bracket, and the sealing air ring bracket is annular and is concentrically arranged with the first straight tube; A gas relief component is also provided at the junction of the first cavity and the second cavity, and the gas relief component includes a gas relief hole, and the gas relief hole runs through the first cavity to the second cavity, and the end of the gas relief hole is connected to a gas relief pipe, and the gas relief pipe body is located in the inverted trapezoidal cavity of the second cavity, passes through the cavity wall and is connected to an external gas relief valve; The distance between the top of cavity one and the short side of the inverted trapezoidal cavity of cavity two is L1, and the distance between the upper surface of the ultrasonic transducer and the lower surface of the limiting flange is L2, satisfying L1=L2; the distance between the bottom surface of groove two and the lower surface of the second straight tube is S1, and the distance between the lower surface of the ultrasonic transducer and the upper surface of the limiting flange is S2, satisfying S1=S2.

2. The ultrasonic stirring kettle according to claim 1, characterized in that: The stirring kettle body also includes a cylinder flange, a head flange, an ear seat, and supporting ribs; The lower head is also provided with a discharge port; the upper head is provided with a feed port; the support ribs are fixed to the outside of the cylinder, and a plurality of ear seats equidistantly distributed in the circumferential direction are fixed to the outside of the support ribs; the upper end of the cylinder is integrally connected with the upper head, and the lower end of the cylinder is connected with the lower head through the cylinder flange and the head flange.

3. The ultrasonic stirring kettle according to claim 2, characterized in that: The filter screen is a 316L sintered screen, and the filter screen support frame is a hexagonal petal shape and is made of stainless steel.

4. The ultrasonic stirring kettle according to claim 3, characterized in that: The stirring device includes a motor, a motor bracket, a stirring shaft and a stirring paddle; the motor is fixed to the upper end of the stirring kettle body through the motor bracket, the stirring shaft is connected to the output shaft of the motor through a coupling, and the stirring paddle is fixed to the lower end of the stirring shaft and is located inside the stirring kettle body.

5. A control method for an ultrasonic stirring tank as claimed in claim 4, characterized in that: The control method of the ultrasonic stirring kettle comprises: After the feeding is completed, the motor drives the stirring shaft and the stirring paddle inside the stirring kettle body to rotate to stir the reaction materials; After the reaction is completed, the push rod is pushed upward to make the ultrasonic transducer close to the filter support frame, and at the same time, part of the gas in the cavity 1 is pressed into the sealing air ring through the vent hole through the air plug to prevent the gas in the cavity 1 from leaking; thereby, negative pressure is formed in the cavity 1, so that the ultrasonic transducer and the filter support frame are pressed and fitted tightly, and the handle is turned, and the limiting flange is stuck at the junction of the inverted trapezoidal cavity and the elliptical cylinder cavity, so that the push rod is fixed vertically; The discharge port is opened to start filtering and separation, and at the same time, the ultrasonic transducer is externally controlled to select a vibration frequency, and the filter screen is driven to generate high-frequency vibration for filtering through the filter screen support frame; After the filtration is completed, the external air release valve is opened, the sealing air ring is deflated, the negative pressure in the cavity 1 disappears, the handle is turned to reset it, the push rod is pulled downward, the ultrasonic transducer is closely attached to the groove 2, the handle is turned, the limiting flange is stuck at the opening of the cavity 2, and the push rod is fixed vertically; Clean water is introduced into the stirring kettle body until the liquid level is higher than the filtering device, and the ultrasonic transducer is externally controlled to select a cleaning frequency, driving the lower head to generate high-frequency vibration, generating a large number of microbubbles by the cavity effect, and the filter screen is cleaned in combination with the cavitation effect of the ultrasonic wave.

6. Use of the ultrasonic stirring reactor as claimed in any one of claims 1 to 4 in enzyme catalysis.

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