Ultrafiltration degerming equipment and technology for glutamic acid isoelectric fermentation liquor

Abstract

The invention relates to glutamic acid isoelectric fermentation liquor ultrafiltration sterilization equipment and technology, and relates to the technical field of seasoning preparation. A heating mechanism can change the heating position of a curved heating pipe in fermentation liquor, so that the situation that the temperature is too high due to the fact that the fermentation liquor around a heater makes too close contact with the heating pipe is avoided; when the position of a heating pipe is changed, an elongated electric push rod drives a bottom plate to ascend through a rectangular rod, then three mounting rings in the middle are driven to ascend until all the mounting rings are in contact, and meanwhile, the distance between every two adjacent filter layers is reduced; meanwhile, the length from the bottom plate to the top of the tank body is reduced, clear water used for filling the whole tank body and located in a cavity above the bottom plate is reduced, water consumed for cleaning the four filtering layers is reduced, in the high-temperature sterilization process, the ultrafiltration mechanism can be directly cleaned, consumed time is shortened, and the working efficiency of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of seasoning preparation, and in particular to ultrafiltration sterilization equipment and process for glutamic acid isoelectric fermentation liquid. Background Art

[0002] MSG is a safe food condiment and is indispensable in the consumer market. my country is a major producer and consumer of MSG, with an annual output of more than 1.7 million tons. The MSG industry emphasizes sustainable development, and environmental issues have become a key factor. Glutamic acid, also known as L-1-aminopropane-1,3-dicarboxylic acid, is divided into two crystal forms, α and β, and the β form is usually more stable. Glutamic acid is one of the basic amino acids for nitrogen metabolism in biological organisms and is of great significance in metabolism. Glutamic acid is mainly used to produce flavor enhancers such as MSG and chicken essence. The production process of glutamate is mainly fermentation and adopts a continuous isoelectric process. In the process, the isoelectric fermentation liquid needs to be ultrafiltered and sterilized, and then an ultrafiltration sterilization device needs to be used.

[0003] A patent with publication number CN216985751U discloses a fermentation liquid sterilization device, including a tank body, a fixing ring is fixedly connected to the bottom of the tank body surface, three supporting legs are fixedly arranged at the bottom end of the fixing ring, a feed pipe and a water inlet pipe are fixedly connected to the two sides of the top of the tank body, four connecting pipes are fixedly connected to the top of one side of the tank body, a first electric valve is fixedly arranged on one side of the four connecting pipes, one end of the four connecting pipes away from the tank body is fixedly connected to a sewage pipe, one side of the bottom end of the tank body is fixedly connected to a liquid outlet pipe, a second electric valve is fixedly connected to the top of the liquid outlet pipe, one end of the liquid outlet pipe is fixedly connected to a treatment box, a discharge pipe is fixedly connected to the bottom of one side of the treatment box, a switch valve is fixedly arranged on the top of the discharge pipe, and a plurality of electric heating pipes and a temperature sensing head are fixedly arranged at the bottom of the tank body. By setting a filtering component, the fermentation liquid can be filtered layer by layer, impurities and bacteria in the fermentation liquid can be filtered out, and the sterilization effect is improved. By setting a plurality of electric heating pipes, the fermentation liquid can be heated and sterilized.

[0004] However, the above-mentioned prior art still has some shortcomings in practical application: 1. When the subsequent fermentation liquid is sterilized at high temperature, the fermentation liquid can only be stirred simply. Since the heating tube is fixed and in order for the stirring device not to hit the heating tube, there will be some distance between the two. This will cause the fermentation liquid around the heating tube to not be stirred and moved by the stirring blades, and the fermentation liquid around the heater will be in too close contact with the heating tube, resulting in too high a temperature. Not only will the bacteria be killed, but the enzyme will also be destroyed, causing contamination to the fermentation liquid.

[0005] Second, multiple filter layers are required for ultrafiltration of fermentation liquid. In order to ensure the filtering effect, the distance between each filter layer is large, and thus a tank with a large internal space is required. When cleaning each filter layer after ultrafiltration, the entire tank needs to be filled with clean water to ensure that each filter layer is in clean water before the cleaning operation can be performed, which leads to a large amount of water consumption when cleaning the filter layer later, which seriously wastes water resources.

[0006] Therefore, based on the existing ultrafiltration sterilization equipment for glutamic acid and other electric fermentation liquids, there is still room for improvement in order to overcome the above-mentioned technical defects. Summary of the invention

[0007] In order to solve the above problems, in the first aspect, the present application provides an ultrafiltration sterilization equipment for glutamate isoelectric fermentation liquid, which adopts the following technical scheme: it includes a cylindrical tank body with an opening at the lower end, a base is rotatably mounted on the lower port of the tank body, a feed pipe is mounted on the upper surface of the tank body, an observation window is mounted on the side of the tank body, two supporting legs are mounted on the side of the tank body, and an ultrafiltration mechanism is arranged inside the tank body.

[0008] The ultrafiltration mechanism includes a plurality of mounting rings arranged in a tank body, a bottom plate is arranged inside the tank body below all the mounting rings, two cavities are opened in the wall of each mounting ring, a slider is slidably arranged inside each cavity, a connecting rod fixedly connected to the mounting ring below is installed at the lower center of each slider, the two lowest connecting rods are fixedly connected to the bottom plate, a rectangular rod extending to the outside of the tank body is installed on the upper side of the bottom plate, and a heating mechanism is arranged on the side of the tank body.

[0009] The heating mechanism comprises a rotating ring rotatably mounted on the side of the tank body, a mounting plate is mounted on the side of the rotating ring, an electric push rod is mounted on the upper side of the mounting plate, and an upper plate is mounted on the upper end of the electric push rod.

[0010] Preferably, the ultrafiltration mechanism also includes a first motor installed on the upper surface of the upper plate and directly above the rectangular rod, the driving end of the first motor is fixedly connected to the upper end of the rectangular rod, a rotating seat rotatably connected to the tank cover is installed on the side of the rectangular rod, an output pipe is installed on the lower side of the bottom plate on one side of the rectangular rod, a first solenoid valve is arranged on the output pipe, and each of the mounting rings and the side of the bottom plate are provided with a water outlet.

[0011] Preferably, a center ring is provided at the inner center of each mounting ring, a group of supporting spokes whose ends are fixedly connected to the inner side surface of the mounting ring are installed on the side surface of each center ring, a rotating seat which is rotatably installed on the inner side surface of each center ring and is slidably connected to the rectangular rod is installed, a group of brush strips are installed on the side surface of each rotating seat above the filter layer, an annular filter layer is provided between the inner side surface of each mounting ring and the center ring, and the four filter layers are respectively a pp filter cotton layer, a needle felt layer, a polypropylene filter cloth layer and an ultrafiltration membrane layer from top to bottom.

[0012] Preferably, a number of evenly distributed sewage pipes are installed on the side of the tank body corresponding to one side of the ultrafiltration mechanism, and a second solenoid valve is installed on each sewage pipe near the tank body. A confluence pipe is commonly provided at the ends of all the sewage pipes, and the positions and sizes of all the sewage pipes are adapted to the water outlet.

[0013] Preferably, the heating mechanism also includes a connecting rod installed on the lower side of the upper plate on one side of the tank body, and a lower plate is installed at the lower end of the connecting rod. Two extension plates extending through the base into the tank body are correspondingly installed on the upper surface of the lower plate. The ends of the two extension plates inside the tank body are jointly installed with curved heating tubes, and a motor slot is opened in the center of the upper surface of the lower plate.

[0014] Preferably, a stirring mechanism is also provided on the tank body, and the stirring mechanism includes a second motor installed in the center of the lower surface of the base directly above the motor slot, the driving end of the second motor extends into the tank body through the base and is installed with an axis rod, and a number of evenly distributed stirring blades are installed on the side of the axis rod.

[0015] Preferably, the sides of the tank body and the base are jointly provided with a fixing mechanism, and the fixing mechanism comprises a fixing seat installed on the side of the base, an empty groove is opened inside the fixing seat, and a sliding block adapted thereto is slidably arranged in the empty groove.

[0016] Preferably, an extension rod extending to the outside of the fixing seat is installed on the lower side of the slider, a spring is installed in the empty groove between the slider and the inner wall, and one end of the extension rod extends to the outside of the fixing seat and is installed with a pull ring.

[0017] Preferably, a second arc-shaped rack is installed on the side of the tank body on one side of the fixed seat, a round rod extending to the outside of the fixed seat is installed on the upper side of the slider, and a first arc-shaped rack meshing with the second arc-shaped rack is installed at the end of the round rod outside the fixed seat.

[0018] On the other hand, the present application also discloses a glutamic acid isoelectric fermentation liquid ultrafiltration sterilization process, the process comprising the following steps: S1, isoelectric fermentation liquid ultrafiltration, injecting glutamic acid isoelectric fermentation liquid into the tank body through the feed pipe, and using multiple filter layers in the ultrafiltration mechanism to ultrafilter the isoelectric fermentation liquid.

[0019] S2, high temperature sterilization, using a moving curved heating tube to heat and sterilize the fermentation liquid.

[0020] S3, cleaning, the electric push rod drives the upper plate to rise and drives the ultrafiltration mechanism structure to change, and cleans the filter layer in the ultrafiltration mechanism.

[0021] S4, ultraviolet sterilization, the fermentation liquid after high temperature sterilization in the tank is sent to the ultraviolet sterilization mechanism for ultraviolet irradiation sterilization.

[0022] S5. The device is restored. The electric push rod is shortened to drive the ultrafiltration mechanism structure to recover and the curved heating tube position to recover, and then the next ultrafiltration sterilization can be carried out.

[0023] In summary, the present application includes at least one of the following beneficial technical effects of ultrafiltration sterilization equipment and process for glutamic acid isoelectric fermentation liquid: 1. The heating mechanism provided in the present invention can change the heating position of the curved heating tube in the fermentation liquid, thereby preventing the fermentation liquid around the heater from being too close to the heating tube, resulting in excessive temperature, which may cause the enzyme to be destroyed and cause contamination of the fermentation liquid. At the same time, the change in the position of the curved heating tube can allow the liquid originally far away from the heating tube to be quickly heated, thereby accelerating the high-temperature sterilization effect. The heating tube of the device can be rotated to align the gap of the heating tube with the stirring blade, thereby preventing the stirring blade from obstructing the movement of the moving heating tube.

[0024] 2. The present invention changes the position of the heating tube while allowing the extended electric push rod to drive the bottom plate to rise through the rectangular rod, thereby driving the three middle mounting rings to rise until all the mounting rings are in contact. At the same time, the distance between adjacent filter layers is reduced, and the length of the bottom plate to the top of the tank body is reduced. As a result, the amount of clean water used to fill the entire tank body in the chamber above the bottom plate is reduced, thereby reducing the water consumed for cleaning the four filter layers, thereby achieving the purpose of saving water resources.

[0025] 3. The present invention changes the shape of the ultrafiltration mechanism when changing the position of the curved heating tube during the high-temperature sterilization of glutamic acid and other electric fermentation liquids, thereby reducing its length. Therefore, during the high-temperature sterilization process, the ultrafiltration mechanism can be directly cleaned, and there is no need to discharge the fermentation liquid in the tank before cleaning each filter layer, which reduces the time consumed and speeds up the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a side view of the present invention.

[0029] Figure 3 It is a schematic diagram of the internal structure of the tank body of the present invention.

[0030] Figure 4 It is a schematic diagram of the stirring mechanism structure of the present invention.

[0031] Figure 5 It is a schematic diagram of the structure of the ultrafiltration mechanism of the present invention.

[0032] Figure 6 It is a cross-sectional view of the ultrafiltration mechanism of the present invention.

[0033] Figure 7 yes Figure 6 Enlarged view of part A.

[0034] Figure 8 It is a schematic structural diagram of the ultrafiltration mechanism of the present invention in a contracted state.

[0035] Fig. 9 It is a schematic diagram of the structure of the filter assembly of the present invention.

[0036] Fig.10 It is a schematic diagram of the heating mechanism structure of the present invention.

[0037] Fig.11 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0038] Fig.12 It is a schematic diagram of the structure of the ultraviolet disinfection mechanism of the present invention.

[0039] In the figure, 1, tank body; 2, ultrafiltration mechanism; 201, mounting ring; 202, cavity; 203, slider; 204, connecting rod; 205, center ring; 206, supporting spokes; 207, filtering layer; 208, first motor; 209, rectangular rod; 210, rotating seat; 211, brush strip; 212, bottom plate; 213, water outlet; 214, output pipe; 215, first solenoid valve; 216, rotating seat; 3, heating mechanism; 301, rotating ring; 302, mounting plate; 303, electric push rod; 304, upper plate; 305, connecting rod; 306, lower plate; 307, extension plate; 308, curved heating tube; 30 9. Motor slot; 4. Stirring mechanism; 401. Second motor; 402. Shaft; 403. Stirring blade; 5. Ultraviolet sterilization mechanism; 501. Rectangular box; 502. Input pipe; 503. Valve; 504. Ultraviolet sterilization lamp; 505. Activated carbon cloth; 506. Faucet; 6. Fixing mechanism; 601. Fixing seat; 602. Sliding block; 603. Extension rod; 604. Pull ring; 605. Spring; 606. Round rod; 607. First arc-shaped rack; 608. Second arc-shaped rack; 11. Feeding pipe; 12. Observation window; 13. Support leg; 14. Base; 15. Drain pipe; 16. Second solenoid valve; 17. Converging pipe. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 12 Embodiments of the present invention are described in detail.

[0041] The embodiment of the present application discloses an ultrafiltration sterilization device and process for glutamic acid isoelectric fermentation liquid. By changing the position of the heating tube, the extended electric push rod will drive the bottom plate to rise through the rectangular rod, and then drive the three middle mounting rings to rise until all the mounting rings are in contact. At the same time, the distance between adjacent filter layers is reduced, and the length of the bottom plate to the top of the tank body is reduced. As a result, the amount of clean water used to fill the entire tank body in the chamber above the bottom plate is reduced, thereby reducing the water consumed for cleaning the four filter layers and achieving the purpose of saving water resources.

[0042] Embodiment 1: Reference Figure 1-Figure 3 As shown, it includes a cylindrical tank body 1 with an opening at the lower end, a base 14 adapted thereto is rotatably mounted on the lower end of the tank body 1, a feed pipe 11 is mounted on the upper surface of the tank body 1, and the rotating base 14 can drive the internal components of the tank body 1 to rotate, and glutamic acid and other electric fermentation liquid or clean water can be fed into the tank body 1 through the feed pipe 11.

[0043] Reference Figure 1-Figure 3As shown, an observation window 12 is installed on the side of the tank body 1, and two supporting legs 13 are installed on the side of the tank body 1 correspondingly below the observation window 12. An ultrafiltration mechanism 2 is arranged inside the tank body 1. The interior of the tank body 1 can be observed through the observation window 12, the supporting legs 13 can be used to support the tank body 1, and the ultrafiltration mechanism 2 can be used to perform multi-layer ultrafiltration on the glutamate fermentation liquid entering the tank body 1.

[0044] Reference Figure 3 and Figure 5-Figure 9 As shown, the ultrafiltration mechanism 2 includes a plurality of mounting rings 201 uniformly arranged inside the tank body 1 and adapted thereto, the top mounting ring 201 is fixedly connected to the inner wall of the tank body 1, a bottom plate 212 is arranged inside the tank body 1 just below all the mounting rings 201, the mounting rings 201 are used to install the filter layer 207, and the bottom plate 212 is used to block clean water during cleaning.

[0045] Reference Figure 5-Figure 9 As shown, two cavities 202 are correspondingly opened in the wall of each mounting ring 201, and a slider 203 is slidably arranged inside each cavity 202. A connecting rod 204 is installed at the center of the lower surface of each slider 203, and the end extends to the outside of the mounting ring 201 and is fixedly connected to the lower mounting ring 201. The two lowest connecting rods 204 are fixedly connected to the bottom plate 212. The slider 203 and the connecting rod 204 between each two adjacent mounting rings 201 can realize the connection between the two mounting rings 201. At the same time, when the bottom plate 212 or the mounting ring 201 moves up or down, the slider 203 can slide in the cavity 202 through the connecting rod 204, which plays a connecting and limiting role between multiple mounting rings 201 and the bottom plate 212.

[0046] Reference Figure 3 and Figure 5-Figure 6 As shown, a water outlet 213 is provided on the side of each mounting ring 201 and the bottom plate 212, and a rectangular rod 209 extending to the outside of the tank body 1 is installed on the upper side of the bottom plate 212. The ultrafiltration mechanism 2 also includes a first motor 208 installed on the upper surface of the upper plate 304 and directly above the rectangular rod 209. The driving end of the first motor 208 is fixedly connected to the upper end of the rectangular rod 209. The rectangular rod 209 moving up and down can drive the bottom plate 212 to move up and down, and the running first motor 208 can drive the rectangular rod 209 to rotate.

[0047] Reference Figure 5-Figure 6 As shown, a rotating seat 216 rotatably connected to the upper cover of the tank body 1 is installed on the side of the rectangular rod 209, and an output pipe 214 is installed on the lower side of the bottom plate 212 on one side of the rectangular rod 209. A first solenoid valve 215 is provided on the output pipe 214. The rotating rectangular rod 209 can drive the rotating seat 216 to rotate. Opening the first solenoid valve 215 can allow the filtered fermentation liquid to enter the chamber below the bottom plate 212 in the tank body 1 through the output pipe 214.

[0048] Reference Figure 5-Figure 9 As shown, a center ring 205 is provided at the inner center of each mounting ring 201, and a group of supporting spokes 206 whose ends are fixedly connected to the inner side of the mounting ring 201 are installed on the side of each center ring 205. An annular filter layer 207 is provided between the inner side of each mounting ring 201 and the center ring 205. The four filter layers 207 are respectively a PP filter cotton layer, a needle felt layer, a polypropylene filter cloth layer and an ultrafiltration membrane layer from top to bottom. The PP filter cotton layer, the needle felt layer, the polypropylene filter cloth layer and the ultrafiltration membrane layer are used successively to filter the isoelectric fermentation liquid entering the tank body 1 layer by layer, so as to filter out impurities and bacteria in the isoelectric fermentation liquid.

[0049] Reference Figure 5-Figure 9 As shown, the inner side surface of each center ring 205 is rotatably mounted with a rotating seat 210 which is sleeved on the rectangular rod 209 and slidably connected thereto, and the side surface of each rotating seat 210 is mounted with a group of brush strips 211 above the filter layer 207. The rotating rectangular rod 209 can drive four groups of brush strips 211 to rotate through four rotating seats 210 to sweep and clean the upper surfaces of the four filter layers 207.

[0050] Reference Figure 1-Figure 3 and Fig.10 As shown, a heating mechanism 3 is provided on the side of the tank body 1, and the heating mechanism 3 includes a rotating ring 301 rotatably mounted on the side of the tank body 1 and above the observation window 12, a mounting plate 302 is mounted on the side of the rotating ring 301, an electric push rod 303 is mounted on the upper surface of the mounting plate 302, and an upper plate 304 is mounted on the upper end of the electric push rod 303, the rotating ring 301 can drive the electric push rod 303 to rotate around the tank body 1, and the telescopic electric push rod 303 can drive the upper plate 304 to move up and down.

[0051] Reference Figure 1-Figure 3 and Fig.10 As shown, the heating mechanism 3 also includes a connecting rod 305 installed on the lower side of the upper plate 304 and on one side of the tank body 1, and a lower plate 306 is installed at the lower end of the connecting rod 305. Two extension plates 307 extending through the base 14 and into the tank body 1 are correspondingly installed on the upper surface of the lower plate 306. The upper plate 304 that moves up and down can drive the extension plate 307 to move up and down through the connecting rod 305 and the lower plate 306.

[0052] Reference Figure 1-Figure 3 and Fig.10As shown, the ends of the two extension plates 307 located in the tank body 1 are jointly equipped with a curved heating tube 308, a motor slot 309 is provided at the center of the upper surface of the lower plate 306, and a temperature controller (not shown in the figure) is also provided on the side of the tank body 1, one of the extension plates 307 is located inside the tank body 1 and is equipped with a temperature sensing head (not shown in the figure) near the curved heating tube 308, the extension plate 307 that moves up and down can drive the curved heating tube 308 to move and adjust its position, the curved heating tube 308 can be controlled by the temperature controller to control the temperature of the curved heating tube 308, and the temperature sensing head can sense the temperature of the fermentation liquid.

[0053] Reference Figure 2 As shown, a number of evenly distributed sewage pipes 15 are installed on the side of the tank body 1 corresponding to one side of the ultrafiltration mechanism 2, and a second solenoid valve 16 is installed on each sewage pipe 15 near the tank body 1. The ends of all sewage pipes 15 are commonly provided with a confluence pipe 17. The position and size of all sewage pipes 15 are adapted to the water outlet 213. By opening all the second solenoid valves 16, the sewage generated by cleaning can be discharged from each sewage pipe 15 into the confluence pipe 17 and discharged after confluence.

[0054] Reference Figure 3-Figure 4 As shown, a stirring mechanism 4 is also provided on the tank body 1, and the stirring mechanism 4 includes a second motor 401 installed at the center of the lower surface of the base 14 just above the motor slot 309, and the driving end of the second motor 401 extends through the base 14 into the tank body 1 and is installed with a shaft 402, and a plurality of evenly distributed stirring blades 403 are installed on the side of the shaft 402. The running second motor 401 drives the shaft 402 to rotate, and the rotating shaft 402 drives all the stirring blades 403 to rotate to stir the filtered fermentation liquid in the tank body 1.

[0055] Reference Figure 1 and Fig.11 As shown, a fixing mechanism 6 is commonly provided on the sides of the tank body 1 and the base 14. The fixing mechanism 6 includes a fixing seat 601 installed on the side of the base 14. An empty groove is opened inside the fixing seat 601. A sliding block 602 adapted to the empty groove is slidably provided in the empty groove. The sliding block 602 can slide in the empty groove.

[0056] Reference Figure 1 and Fig.11 As shown, an extension rod 603 extending to the outside of the fixed seat 601 is installed on the lower side of the slider 602, and a spring 605 is installed in the empty groove between the slider 602 and the inner wall. One end of the extension rod 603 extends to the outside of the fixed seat 601 and is installed with a pull ring 604. Pulling the pull ring 604 drives the slider 602 to move through the extension rod 603, and the moving slider 602 can compress the spring 605.

[0057] Reference Figure 1 and Fig.11 As shown, a second arc-shaped rack 608 is installed on the side of the tank body 1 on one side of the fixed seat 601, a round rod 606 extending to the outside of the fixed seat 601 is installed on the upper side of the slider 602, and a first arc-shaped rack 607 meshing with the second arc-shaped rack 608 is installed at the end of the round rod 606 outside the fixed seat 601. The moving slider 602 can drive the first arc-shaped rack 607 to move through the round rod 606, so that the first arc-shaped rack 607 can be disengaged from the second arc-shaped rack 608.

[0058] Embodiment 2: Reference Figure 1-Figure 3 and Fig.12 As shown, on the basis of Example 1, in order to enhance the sterilization effect of the device, an ultraviolet sterilization mechanism 5 is arranged on one side of the tank body 1, and the ultraviolet sterilization mechanism 5 includes a rectangular box 501, and an input pipe 502 connected to the rectangular box 501 is installed on the lower side of the base 14, and a valve 503 is arranged on the input pipe 502 near the base 14. When the valve 503 is opened, the glutamic acid isoelectric fermentation liquid after ultrafiltration and high-temperature sterilization in the tank body 1 can enter the rectangular box 501 through the input pipe 502.

[0059] Reference Figure 1-Figure 3 and Fig.12 As shown, a faucet 506 is installed on one side of the rectangular box 501 near the bottom, and a plurality of evenly distributed ultraviolet sterilization lamps 504 are installed on the lower side of the upper cover of the rectangular box 501. A strip groove is opened on the lower surface of the upper cover of the rectangular box 501 between every two adjacent ultraviolet sterilization lamps 504, and an activated carbon cloth 505 is arranged in each strip groove. The ultraviolet sterilization lamps 504 can be used to sterilize the fermentation liquid in the rectangular box 501, and the fermentation liquid after ultraviolet sterilization is discharged through the faucet 506.

[0060] On the other hand, the present application also discloses a glutamic acid isoelectric fermentation liquid ultrafiltration sterilization process, the process steps are as follows: S1, isoelectric fermentation liquid ultrafiltration, glutamic acid isoelectric fermentation liquid is injected into the tank body 1 through the feed pipe 11, and the isoelectric fermentation liquid is ultrafiltered using multiple filter layers 207 in the ultrafiltration mechanism 2. Specifically, glutamic acid isoelectric fermentation liquid is injected into the tank body 1 through the feed pipe 11, and the isoelectric fermentation liquid is filtered layer by layer using a pp filter cotton layer, a needle felt layer, a polypropylene filter cloth layer and an ultrafiltration membrane layer, which can filter impurities and bacteria in the isoelectric fermentation liquid. The filtered fermentation liquid is discharged into the tank body 1 through the output pipe 214 and is located in the chamber below the ultrafiltration mechanism 2; S2, high temperature sterilization, using the movable curved heating tube 308 to heat and sterilize the fermentation liquid. Specifically, first, the curved heating tube 308 is turned on by the temperature controller to heat and sterilize the fermentation liquid. The second motor 401 drives the shaft 402 to rotate, driving the stirring blade 403 to stir the fermentation liquid. After a period of time, the second motor 401 is turned off, and the pull ring 604 is pulled down to pull the slider 602 down through the extension rod 603. The descending slider 602 compresses the spring 605 and drives the first arc rack 607 to descend and release the second arc rack 607. 08 engages, releases the fixation of the base 14, then rotates the base 14 to drive the curved heating tube 308 to rotate, observes through the observation window 12 to align the stirring blade 403 with the gap of the curved heating tube 308, then loosens the pull ring 604 to let the spring 605 rebound and drive the first arc-shaped rack 607 to re-engage with the second arc-shaped rack 608, and re-fixes the base 14, then the electric push rod 303 extends to drive the curved heating tube 308 to rise and change the position of the curved heating tube 308, and then the second motor 401 restarts to continue to drive the stirring blade 403 to rotate to stir the fermentation liquid.

[0061] S3, cleaning, the electric push rod 303 drives the upper plate 304 to rise and drives the ultrafiltration mechanism 2 to change its structure, and cleans the filter layer 207 in the ultrafiltration mechanism 2. Specifically, the electric push rod 303 extends and drives the upper plate 304 to rise, thereby driving the rectangular rod 209 to rise. The rising rectangular rod 209 drives the bottom plate 212 to rise, and the rising bottom plate 212 contacts the upper mounting ring 201 and drives it to rise. Then the rising mounting ring 201 contacts the upper mounting ring 201 and continues to drive it to rise until it contacts the uppermost mounting ring 201. At this time, the five water outlets 213 are aligned with the five sewage pipes 15. Then close the first solenoid valve 215, and fill the chamber above the bottom plate 212 in the tank body 1 with clean water through the feed pipe 11. Then the first motor 208 drives the rectangular rod 209 to rotate. The rotating rectangular rod 209 drives the four groups of brush strips 211 to rotate through the four rotating seats 210, and sweeps and cleans the upper surfaces of the four filter layers 207. At the same time, open all the second solenoid valves 16 to allow sewage to enter the junction pipe 17 from each sewage pipe 15, and be discharged after merging through the junction pipe 17 until the sewage is discharged from the junction pipe 17 as clean water, indicating that the cleaning is completed, stop injecting clean water into the feed pipe 11, and then the clean water flows out of the junction pipe 17, and the cleaning is completed.

[0062] S4, ultraviolet sterilization, the fermentation liquid after high-temperature sterilization in the tank body 1 is sent to the ultraviolet sterilization mechanism 5 for ultraviolet irradiation sterilization. Specifically, open the valve 503, and send the fermentation liquid after high-temperature sterilization in the tank body 1 into the rectangular box 501 through the input pipe 502. Then, each ultraviolet sterilization lamp 504 is operated to sterilize the fermentation liquid in the rectangular box 501 with ultraviolet irradiation. After the ultraviolet sterilization time is reached, open the faucet 506 to discharge the fermentation liquid in the rectangular box 501.

[0063] S5. The device is restored. The electric push rod 303 is shortened to drive the ultrafiltration mechanism 2 structure to be restored and the curved heating tube 308 to be restored in position, and then the next ultrafiltration sterilization can be carried out. Specifically, the upper plate 304 is pulled down to drive the extension plate 307 to descend and release the engagement with the curved heating tube 308. The rotating base 14 drives the curved heating tube 308 to rotate so that the stirring blade 403 is aligned with the gap of the curved heating tube 308. Then the electric push rod 303 is shortened to drive the curved heating tube 308 to descend, and at the same time, the bottom plate 212 is driven to descend through the rectangular rod 209. Without the support of the bottom plate 212, the three mounting rings 201 in the middle descend, allowing each slider 203 to slide in the cavity 202 until the water outlet 213 drops to the lowest point. At this time, each slider 203 just slides down from the upper end of the cavity 202, and the ultrafiltration mechanism 2 is unfolded, and the next ultrafiltration sterilization operation can be carried out.

[0064] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0065] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A glutamic acid isoelectric fermentation liquid ultrafiltration sterilization device, comprising a cylindrical tank body (1) with an opening at the lower end, a base (14) rotatably mounted on the lower end of the tank body (1), a feed pipe (11) mounted on the upper surface of the tank body (1), an observation window (12) mounted on the side of the tank body (1), and two legs (13) mounted on the side of the tank body (1), characterized in that: An ultrafiltration mechanism (2) is arranged inside the tank body (1); The ultrafiltration mechanism (2) comprises a plurality of mounting rings (201) arranged in a tank body (1); a bottom plate (212) is arranged inside the tank body (1) below all the mounting rings (201); two cavities (202) are provided in the wall of each mounting ring (201); a slider (203) is slidably arranged inside each cavity (202); a connecting rod (204) fixedly connected to the mounting ring (201) below is installed at the center of the lower side of each slider (203); the two lowest connecting rods (204) are fixedly connected to the bottom plate (212); a rectangular rod (209) extending to the outside of the tank body (1) is installed on the upper side of the bottom plate (212); and a heating mechanism (3) is arranged on the side of the tank body (1); The heating mechanism (3) comprises a rotating ring (301) rotatably mounted on the side of the tank body (1); a mounting plate (302) is mounted on the side of the rotating ring (301); an electric push rod (303) is mounted on the upper side of the mounting plate (302); and an upper plate (304) is mounted on the upper end of the electric push rod (303).

2. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 1, characterized in that: The ultrafiltration mechanism (2) further comprises a first motor (208) mounted on the upper surface of the upper plate (304) and located directly above the rectangular rod (209); a driving end of the first motor (208) is fixedly connected to the upper end of the rectangular rod (209); a rotating seat (216) rotatably connected to the upper cover of the tank body (1) is mounted on the side of the rectangular rod (209); an output pipe (214) is mounted on the lower side of the bottom plate (212) on one side of the rectangular rod (209); a first solenoid valve (215) is disposed on the output pipe (214); and a water outlet (213) is provided on the side of each of the mounting rings (201) and the bottom plate (212).

3. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 2, characterized in that: A center ring (205) is arranged at the center of the interior of each mounting ring (201); a group of supporting spokes (206) whose ends are fixedly connected to the inner side of the mounting ring (201) are arranged on the side of each center ring (205); a rotating seat (210) which is sleeved on a rectangular rod (209) and slidably connected thereto is rotatably arranged on the inner side of each center ring (205); a group of brush strips (211) are arranged above the filter layer (207) on the side of each rotating seat (210); an annular filter layer (207) is arranged between the inner side of each mounting ring (201) and the center ring (205); the four filter layers (207) are, from top to bottom, a PP filter cotton layer, a needle felt layer, a polypropylene filter cloth layer and an ultrafiltration membrane layer.

4. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 2, characterized in that: A plurality of evenly distributed sewage pipes (15) are installed on the side of the tank body (1) corresponding to one side of the ultrafiltration mechanism (2); a second solenoid valve (16) is installed on each sewage pipe (15) near the tank body (1); a confluence pipe (17) is commonly provided at the ends of all the sewage pipes (15); and the positions and dimensions of all the sewage pipes (15) are compatible with the water outlet (213).

5. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 1, characterized in that: The heating mechanism (3) further comprises a connecting rod (305) mounted on the lower side of the upper plate (304) and located on one side of the tank body (1); a lower plate (306) is mounted on the lower end of the connecting rod (305); two extension plates (307) passing through the base (14) and extending into the tank body (1) are mounted on the upper surface of the lower plate (306); the ends of the two extension plates (307) located in the tank body (1) are jointly mounted with a curved heating tube (308); and a motor slot (309) is provided at the center of the upper surface of the lower plate (306).

6. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 5, characterized in that: The tank body (1) is also provided with a stirring mechanism (4), the stirring mechanism (4) comprising a second motor (401) mounted at the center of the lower surface of the base (14) directly above the motor slot (309), the driving end of the second motor (401) extending through the base (14) into the tank body (1) and being provided with a shaft (402), and a plurality of evenly distributed stirring blades (403) being mounted on the side of the shaft (402).

7. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 1, characterized in that: The sides of the tank body (1) and the base (14) are jointly provided with a fixing mechanism (6), the fixing mechanism (6) comprising a fixing seat (601) mounted on the side of the base (14), an empty slot being provided inside the fixing seat (601), and a sliding block (602) matching the sliding block being slidably provided in the empty slot.

8. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 7, characterized in that: An extension rod (603) extending to the outside of the fixing seat (601) is installed on the lower side of the slider (602), a spring (605) is installed in the slot between the slider (602) and the inner wall, and one end of the extension rod (603) extends to the outside of the fixing seat (601) and is installed with a pull ring (604).

9. The ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to claim 8, characterized in that: A second arc-shaped rack (608) is mounted on the side of the tank body (1) at one side of the fixing seat (601); a round rod (606) extending to the outside of the fixing seat (601) is mounted on the upper side of the sliding block (602); and a first arc-shaped rack (607) meshing with the second arc-shaped rack (608) is mounted on the end of the round rod (606) outside the fixing seat (601).

10. A process for ultrafiltration sterilization of glutamic acid isoelectric fermentation liquid, comprising the ultrafiltration sterilization equipment for glutamic acid isoelectric fermentation liquid according to any one of claims 1 to 9, characterized in that: The process includes the following steps: S1, ultrafiltration of the isoelectric fermentation liquid, injecting the glutamic acid isoelectric fermentation liquid into the tank body (1) through the feed pipe (11), and ultrafiltration of the isoelectric fermentation liquid using the multiple filter layers (207) in the ultrafiltration mechanism (2); S2, high temperature sterilization, using a moving curved heating tube (308) to heat and sterilize the fermentation liquid; S3, cleaning, the electric push rod (303) drives the upper plate (304) to rise, while driving the ultrafiltration mechanism (2) to change its structure, and cleaning the filter layer (207) inside the ultrafiltration mechanism (2); S4, ultraviolet sterilization, sending the fermentation liquid after high temperature sterilization in the tank (1) into the ultraviolet sterilization mechanism (5) for ultraviolet irradiation sterilization; S5, the device is restored, the electric push rod (303) is shortened to drive the ultrafiltration mechanism (2) to restore its structure and the curved heating tube (308) to restore its position, and the next ultrafiltration sterilization can be carried out.

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