CN211339520U - Device for increasing dissolved oxygen of fermentation liquor - Google Patents
Device for increasing dissolved oxygen of fermentation liquor Download PDFInfo
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- CN211339520U CN211339520U CN201922001790.6U CN201922001790U CN211339520U CN 211339520 U CN211339520 U CN 211339520U CN 201922001790 U CN201922001790 U CN 201922001790U CN 211339520 U CN211339520 U CN 211339520U
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Abstract
The utility model relates to an increase device that zymotic fluid dissolved oxygen, including the fermentation cylinder, it is equipped with the (mixing) shaft vertically and rotate in the fermentation cylinder, it has a plurality of agitators to be the equipartition from top to bottom on the (mixing) shaft, the fermentation cylinder bottom is vertical and rotate and be equipped with the intake pipe, the rotation direction of intake pipe is opposite with the rotation direction of (mixing) shaft, the fixed intercommunication in intake pipe top has one to be spiral helicine jet coil pipe, jet coil pipe upper surface has a plurality of nozzles up along its spiral direction interval equipartition, the equal vertical intercommunication in both ends of jet coil pipe upper surface has inlet branch, it has a plurality of jet-propelled branch pipes to be distributed from top to bottom on one side that inlet branch is close to the (mixing) shaft, jet-. The utility model discloses an air jet coil pipe and jet-propelled branch can make compressed air's application range wider, distribute more evenly to accessible agitator and air intake branch's phase reversal rotation improves mixing efficiency and mixing quality greatly, guarantees the dissolved oxygen volume of zymotic fluid.
Description
Technical Field
The utility model belongs to the technical field of fermentation production, concretely relates to increase device of zymotic fluid dissolved oxygen.
Background
In the fermentation process of microbial cells, the dissolved oxygen content is one of the important factors influencing the fermentation efficiency, the dissolved oxygen content has certain influence on the growth and metabolism of the microbial cells, and the result directly influences the yield of fermentation products, thereby influencing the fermentation efficiency. In the existing fermentation culture, compressed air is generally sent to the bottom of a fermentation tank, air is upwards sprayed from the bottom of the fermentation tank through an air distributor, and a stirrer in the tank is used for stirring fermentation liquor and the air, so that the mixing of the fermentation liquor and the air is promoted, and the dissolved oxygen degree of the fermentation liquor is improved. However, the specific gravity of the gaseous air is light, the air can rapidly rise after entering the fermentation liquor, the retention time in the fermentation liquor is short, the stirrer can only cut large bubbles to contact the fermentation liquor only by rotating and stirring the air by the stirrer, the mixing efficiency is low, the dissolved oxygen degree of the fermentation liquor is low, and the fermentation culture is not facilitated. Meanwhile, most of the traditional air distributors only introduce one straight pipe at the bottom of the fermentation tank, the range of air injection is limited, the distribution is uneven, especially, the fermentation tank with large diameter has stirring dead angles, which is not beneficial to the mixing of air and fermentation liquor, influences the dissolved oxygen degree of the fermentation liquor and needs to be improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an increase device of zymotic fluid dissolved oxygen can make compressed air's application range wider, distribute more evenly through jet-propelled coil pipe and jet-propelled branch pipe to accessible agitator and air intake branch pipe's phase reversal rotation improves mixing efficiency and mixing quality greatly, causes the not enough problem of zymotic fluid dissolved oxygen with solving current fermentation cylinder air distribution inequality, agitator mixing efficiency low.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an increase device that zymotic fluid dissolved oxygen, includes the fermentation cylinder, vertical and rotation is equipped with the (mixing) shaft in the fermentation cylinder, it has a plurality of agitators to be the equipartition from top to bottom on the (mixing) shaft, the vertical and rotation in fermentation cylinder bottom is equipped with the intake pipe, the rotation direction of intake pipe is opposite with the rotation direction of (mixing) shaft, the fixed intercommunication in intake pipe top has one to be spiral helicine jet coil pipe, jet coil pipe upper surface has a plurality of nozzles up along its spiral direction interval equipartition, the equal vertical intercommunication in both ends of jet coil pipe upper surface has air intake branch, it has a plurality of jet-propelled branch pipes to be distributed from top to bottom on one side that air intake branch is close to the (mixing) shaft, jet-propelled branch pipe and the criss.
Preferably, the top of the stirring shaft extends upwards out of the top of the fermentation tank and is fixedly connected with a first driving motor.
Preferably, the transmission case is arranged on the outer side of the bottom of the fermentation tank, the bottom of the air inlet pipe sequentially penetrates through the bottom of the fermentation tank and the transmission case downwards, a sealed air inlet cover is rotatably connected below the transmission case, and the sealed air inlet cover is fixedly connected to an air transmission pipeline with a flow regulating valve.
Preferably, the intake pipe rotates with fermentation tank bottom and transmission case to be connected, the fixed cover in the part that the intake pipe is located the transmission case is equipped with first bevel gear, be equipped with second driving motor in the transmission case, second driving motor's output shaft level is equipped with second bevel gear towards the intake pipe and fixed cover above that, second bevel gear is connected with first bevel gear meshing.
Preferably, the side wall of the upper part of the fermentation tank is provided with a dissolved oxygen tester, and a detection probe of the dissolved oxygen tester extends into the fermentation tank.
Preferably, the stirrer is a disc turbine stirrer, a plurality of vent holes are formed in a disc of the stirrer, and the longitudinal section of each blade of the stirrer is parabolic.
Preferably, be equipped with the defoaming oar on the (mixing) shaft of agitator top, the defoaming oar includes one and the fixed axle sleeve that cup joints of (mixing) shaft and two radially establishes the puddler on this axle sleeve both sides, the puddler lower surface is equipped with the sawtooth along its length direction.
Preferably, the fermentation cylinder top is equipped with manhole, inlet pipe and blast pipe, be equipped with the support on the fermentation cylinder top lateral wall, be equipped with the discharging pipe that has the bleeder valve on one side of transmission case is kept away from to the fermentation cylinder bottom.
The utility model has the advantages that: the utility model relates to a rationally, simple structure: compressed air enters the air injection coil pipe through the air inlet pipe, one part of the compressed air is upwards sprayed out through a nozzle on the air injection coil pipe, the spiral air injection coil pipe is utilized to expand the action range of the compressed air and enable the compressed air to be more uniformly distributed at the bottom of the fermentation tank, so that the compressed air is more uniformly upwards spread, the other part of the compressed air flows through the air inlet branch pipe and is further dispersed in each air injection branch pipe, the compressed air is sprayed out through the air injection holes which are densely distributed on the circumference of the air injection branch pipes, the distribution uniformity of the compressed air in the fermentation tank can be further improved by matching with the rotation of the air injection branch pipes, the dead angle of air injection is reduced, the action range of the compressed air is ensured, the dissolved oxygen; through the opposite rotation of the stirrer and the air injection branch pipe, the vortex generated by fermentation liquor when the stirrer is operated alone can be effectively overcome, the radial flow is changed into the axial flow, the fermentation liquor is enabled to be vigorously stirred, the dissolved oxygen rate is further increased, the crushing strength and the crushing efficiency of the compressed air can be greatly improved by utilizing the double rotation of the stirrer and the air injection branch pipe, the compressed air is rapidly and fully crushed into fine bubbles in the rapid rising process of the compressed air, the gas-liquid contact interface is greatly increased, the mass transfer rate of oxygen is improved, the fermentation liquor is fully mixed, the mixing efficiency and the mixing quality are ensured, the dissolved oxygen content of the fermentation liquor is further greatly improved, the efficiency and the quality of fermentation culture are ensured, the consumption of the compressed air can be effectively reduced, and the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the air injection coil of the present invention;
fig. 3 is a schematic structural diagram of the stirrer of the present invention.
Reference numbers in the figures: 1 is the fermentation cylinder, 2 is a driving motor, 3 is the (mixing) shaft, 4 is the manhole, 5 is the inlet pipe, 6 is the blast pipe, 7 is the support, 8 is the defoaming oar, 9 is the puddler, 10 is the sawtooth, 11 is the axle sleeve, 12 agitators, 13 is the dissolved oxygen tester, 14 is air intake branch, 15 is air jet branch, 16 is the fumarole, 17 is the air jet coil pipe, 18 is the discharging pipe, 19 is the bleeder valve, 20 is the intake pipe, 21 is first bevel gear, 22 is sealed cover that admits air, 23 is flow control valve, 24 is gas transmission pipeline. 25 is a second bevel gear, 26 is a second driving motor, 27 is a transmission case, 28 is a nozzle, 29 is a disk, 30 is a blade, and 31 is a vent hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 3, an increase device that zymotic fluid dissolved oxygen, including fermentation cylinder 1, vertical and rotation is equipped with (mixing) shaft 3 in fermentation cylinder 1, be about the equipartition on the (mixing) shaft 3 and have a plurality of agitators 12, the bottom of fermentation cylinder 1 is vertical and rotate and be equipped with intake pipe 20, the direction of rotation of intake pipe 20 is opposite with the direction of rotation of (mixing) shaft 3, the fixed intercommunication in top of intake pipe 20 has one to be spiral helicine jet coil 17, jet coil 17 upper surface has a plurality of nozzles 28 up along its spiral direction interval equipartition, the equal vertical intercommunication in both ends of jet coil 17 upper surface has air intake branch 14, air intake branch 14 is close to and is distributed a plurality of jet-propelled branch 15 about being on one side of (mixing) shaft 3, jet-propelled branch 15 and agitator 12 staggered distribution, the upwards distributes in circumference of jet. When the fermentation tank is used, compressed air enters the air injection coil 17 through the air inlet pipe 20, one part of the compressed air is upwards sprayed out through the nozzles 28 on the air injection coil 17, the action range of the compressed air can be enlarged through the spiral air injection coil 17, the compressed air is more uniformly distributed at the bottom of the fermentation tank 1, the upward propagation of the compressed air is more uniform, the other part of the compressed air flows through the air inlet branch pipes 14 and is further dispersed in the air injection branch pipes 15, the compressed air is sprayed out through the air injection holes 16 which are densely distributed in the circumferential direction of the air injection branch pipes 15, the distribution uniformity of the compressed air in the fermentation tank 1 can be further improved by matching with the rotation of the air injection branch pipes 15, the air injection dead angle is reduced, the action range of the compressed air is ensured, the dissolved oxygen content of. Through the opposite rotation of the stirrer 12 and the air injection branch pipe 15, the vortex generated by fermentation liquor when the stirrer 12 is operated alone can be effectively overcome, the radial flow is changed into the axial flow, the fermentation liquor is impelled to be violently stirred, and further the dissolved oxygen rate is increased, the crushing strength and the crushing efficiency of compressed air can be greatly improved by utilizing the double rotation of the stirrer 12 and the air injection branch pipe 15, the compressed air is quickly and fully crushed into fine bubbles in the quick rising process of the compressed air, the gas-liquid contact interface is greatly increased, the mass transfer rate of oxygen is improved, the fermentation liquor is fully mixed, the mixing efficiency and the mixing quality are ensured, the dissolved oxygen content of the fermentation liquor is greatly improved, the efficiency and the quality of fermentation culture are ensured, the consumption of the compressed air can be effectively reduced, and the cost is saved.
In this embodiment, the top of the stirring shaft 3 upwards extends out of the top of the fermentation tank 1 and is fixedly connected with the first driving motor 2, and the stirring shaft 3 is driven to rotate by the power provided by the first driving motor 2 to stir the fermentation liquid.
In this embodiment, a transmission box 27 is provided on the outside of the bottom of the fermentation tank 1, the bottom of the air inlet pipe 20 passes through the bottom of the fermentation tank 1 and the transmission box 27 in sequence and is rotatably connected with a sealed air inlet cover 22 below the transmission box 27, and the sealed air inlet cover 22 is fixedly connected with an air transmission pipeline 24 with a flow control valve 23. During the use, realize compressed air's transport through connecting gas transmission pipeline 24 on compressed air source, make compressed air carry to the jet-propelled coil 17 in through gas transmission pipeline 24, sealed air inlet hood 22 and intake pipe 20 earlier afterwards, reach the purpose to the transport air in the fermentation cylinder 1. By using the sealed air inlet cover 22, smooth sealed transportation of compressed air can be ensured on the premise of ensuring the rotation motion of the air inlet pipe 20, and the problems of air leakage and the like can be avoided. The intake pipe 20 is rotatably connected to the bottom of the fermentation tank 1 and the transmission case 27 to ensure the rotational movement of the intake pipe 20. The part of the air inlet pipe 20 located in the transmission case 27 is fixedly sleeved with a first bevel gear 21, a second driving motor 26 is arranged in the transmission case 27, an output shaft of the second driving motor 26 horizontally faces the air inlet pipe 20 and is fixedly sleeved with a second bevel gear 25, and the second bevel gear 25 is meshed with the first bevel gear. During the use, under the meshing effect of first bevel gear 21 and second bevel gear 25, utilize second driving motor 26 to provide power and can drive and drive intake pipe 20 and rotate with (mixing) shaft 3 opposite direction, and then can drive jet-propelled coil pipe 17, air intake branch 14 and jet-propelled branch 15 on it and rotate to realize compressed air's evenly distributed and cooperate agitator 12 to mix the stirring, improve dissolved oxygen efficiency and dissolved oxygen content.
In this embodiment, be equipped with dissolved oxygen tester 13 on the upper portion lateral wall of fermentation cylinder 1, dissolved oxygen tester 13's test probe stretches into fermentation cylinder 1 in, can carry out real-time detection to the dissolved oxygen volume in the fermentation cylinder 1 at the fermentation culture in-process, is convenient for cultivate the different demands in different stages according to the fermentation, in time utilizes flow control valve 23 to regulate and control the compressed air volume that lets in, more is favorable to the cultivation of zymotic fluid, reduces compressed air's loss.
In this embodiment, the stirrer 12 is a disk turbine stirrer, which can improve the mixing effect of the fermentation liquid and the compressed air. The disc 29 of the stirrer 12 is provided with a plurality of vent holes 31, which can increase the circulation of air and improve the dissolved oxygen in the fermentation liquor. The longitudinal section of the blade 30 of the stirrer 12 is parabolic, so that the contact area with the fermentation liquor can be increased, and the stirring and mixing effects are better. Be equipped with defoaming oar 8 on the (mixing) shaft 3 of agitator 12 top, defoaming oar 8 includes one and the fixed axle sleeve 11 that cup joints of (mixing) shaft 3 and two radially establishes puddler 9 on this axle sleeve 11 both sides, puddler 9 lower surface is equipped with sawtooth 10 along its length direction, because foaming material qualities such as protein in the zymotic fluid are many, can produce a large amount of foams under strong stirring of ventilating, can effectively smash the foam on zymotic fluid upper strata through the defoaming oar, avoid the zymotic fluid excessive, reduce the zymotic fluid chance of dying fungi.
In this embodiment, fermentation cylinder 1's top is equipped with manhole 4, inlet pipe 5 and blast pipe 6, and manhole 4 can be used to staff's business turn over equipment so that install, overhaul and safety inspection to equipment, and inlet pipe 5 is used for the feeding, and blast pipe 6 then is used for the exhaust, guarantees fermentation cylinder 1's interior atmospheric pressure balance. The outer side wall of the top of the fermentation tank 1 is provided with a support 7 for fixedly mounting the fermentation tank 1. The side of the bottom of the fermentation tank 1, which is far away from the transmission case 27, is provided with a discharge pipe 18 with a discharge valve 19 for discharging after the fermentation culture is completed.
The utility model discloses a theory of operation: the utility model discloses when using, earlier with gas transmission pipeline 24 and compressed air source intercommunication, in sending into fermentation cylinder 1 with the zymotic fluid through inlet pipe 5 again, then open flow control valve 23 on the gas transmission pipeline 24, begin to let in compressed air in to fermentation cylinder 1. Compressed air flows through the sealed air inlet cover 22 and the air inlet pipe 20 to enter the spiral air injection coil 17, and a part of the compressed air is firstly sprayed upwards through the nozzles 28 on the air injection coil 17, so that the action range is expanded by utilizing the structural characteristics of the air injection coil 17, and the compressed air is uniformly distributed at the bottom of the fermentation tank 1, so that the compressed air is spread upwards more uniformly, and the dissolved oxygen is increased; the other part of the fermentation liquor flows through the air inlet branch pipes 14 and is dispersed in the air injection branch pipes 15 and is sprayed out through the air injection holes 16 densely distributed on the circumferential direction of the air injection branch pipes 15, so that the distribution uniformity of the compressed air in the fermentation tank 1 is further improved, the air injection dead angle is reduced, the action range of the compressed air is ensured, and the dissolved oxygen content of the fermentation liquor is improved. When compressed air is conveyed, the first driving motor 2 and the second driving motor 26 are started, the first driving motor 2 drives the stirring shaft 3 and the defoaming paddle 8 and the stirrer 12 on the stirring shaft to rotate, the second driving motor 26 drives the air inlet pipe 20 to rotate in the direction opposite to that of the stirring shaft 3 through gear transmission, and then drives the air injection coil pipe 17 and the air inlet branch pipe 14 and the air injection branch pipe 15 on the air inlet branch pipe to rotate, so that the compressed air is effectively smashed, a gas-liquid contact interface is increased, the mass transfer rate of oxygen is increased, meanwhile, fermentation liquor is fully mixed, the dissolved oxygen rate and the dissolved oxygen content of the fermentation liquor are greatly increased, and further, the fermentation efficiency and the fermentation quality are improved. In the fermentation culture process, the dissolved oxygen tester 13 detects the dissolved oxygen in the fermentation tank 1 in real time, and can regulate and control the introduced compressed air amount by utilizing the flow regulating valve 23 in time according to different requirements of different stages of fermentation culture, so that the fermentation liquid can be cultured more favorably, and the loss of the compressed air is reduced.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The utility model provides an increase device of zymotic fluid dissolved oxygen, includes the fermentation cylinder, its characterized in that, vertical and rotation is equipped with the (mixing) shaft in the fermentation cylinder, it has a plurality of agitators to be the equipartition from top to bottom on the (mixing) shaft, the vertical and rotation in fermentation cylinder bottom is equipped with the intake pipe, the direction of rotation of intake pipe is opposite with the direction of rotation of (mixing) shaft, the fixed intercommunication in intake pipe top has one to be spiral helicine jet coil pipe, jet coil pipe upper surface has a plurality of nozzles up along its spiral direction interval equipartition, the equal vertical intercommunication in both ends of jet coil pipe upper surface has air intake branch, it has a plurality of jet-propelled branch pipes to be the distribution from top to bottom on the one side that air intake branch is close to the (mixing) shaft, jet-.
2. The apparatus for increasing dissolved oxygen in fermentation broth according to claim 1, wherein the top of the stirring shaft extends upwards out of the top of the fermentation tank and is fixedly connected with a first driving motor.
3. The apparatus for increasing the dissolved oxygen content in fermentation broth according to claim 1, wherein a transmission case is arranged outside the bottom of the fermentation broth, the bottom of the air inlet pipe passes through the bottom of the fermentation broth and the transmission case in sequence, and a sealed air inlet cover is rotatably connected below the transmission case and fixedly connected to an air transmission pipeline with a flow control valve.
4. The device for increasing the dissolved oxygen content in the fermentation broth according to claim 3, wherein the air inlet pipe is rotatably connected with the bottom of the fermentation broth and the transmission case, a first bevel gear is fixedly sleeved on the part of the air inlet pipe located in the transmission case, a second driving motor is arranged in the transmission case, an output shaft of the second driving motor horizontally faces the air inlet pipe, a second bevel gear is fixedly sleeved on the second driving motor, and the second bevel gear is in meshed connection with the first bevel gear.
5. The apparatus for increasing dissolved oxygen in fermentation broth according to claim 1, wherein the side wall of the upper part of the fermentation tank is provided with a dissolved oxygen tester, and a detection probe of the dissolved oxygen tester extends into the fermentation tank.
6. The apparatus of claim 1, wherein the agitator is a disk turbine agitator, the disk is provided with a plurality of ventilation holes, and the longitudinal section of the blade is parabolic.
7. The apparatus as claimed in claim 6, wherein the stirring shaft above the stirrer is provided with defoaming paddles, the defoaming paddles comprise a shaft sleeve fixedly sleeved on the stirring shaft and two stirring rods radially arranged on two sides of the shaft sleeve, and the lower surface of each stirring rod is provided with saw teeth along the length direction thereof.
8. The device for increasing the dissolved oxygen content in the fermentation broth according to claim 1, wherein the top of the fermentation tank is provided with a manhole, a feeding pipe and an exhaust pipe, the outer side wall of the top of the fermentation tank is provided with a support, and the side of the bottom of the fermentation tank far away from the transmission case is provided with a discharging pipe with a discharging valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922001790.6U CN211339520U (en) | 2019-11-19 | 2019-11-19 | Device for increasing dissolved oxygen of fermentation liquor |
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| CN201922001790.6U CN211339520U (en) | 2019-11-19 | 2019-11-19 | Device for increasing dissolved oxygen of fermentation liquor |
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| CN112304794A (en) * | 2020-10-10 | 2021-02-02 | 海南大学 | Seawater scouring corrosion testing machine and testing method thereof |
| CN113087556A (en) * | 2021-02-20 | 2021-07-09 | 汤欣情 | Waste material catalytic fermentation equipment for livestock breeding |
| CN113201441A (en) * | 2021-06-10 | 2021-08-03 | 江苏丰泽生物工程设备制造有限公司 | Fermentation tank with air energy structure and capable of enhancing dissolved oxygen effect and use method of fermentation tank |
| CN113214957A (en) * | 2021-06-22 | 2021-08-06 | 苏州好唯加食品有限公司 | White vinegar production equipment and white vinegar production process |
| CN113322159A (en) * | 2021-06-01 | 2021-08-31 | 四川大学 | Fermentation cylinder for biological medicine |
| CN113976621A (en) * | 2021-10-27 | 2022-01-28 | 南京工业大学 | System and method for repairing heavy metal contaminated soil by microorganisms |
| CN114158710A (en) * | 2021-12-23 | 2022-03-11 | 贵州南山婆食品加工有限公司 | Ester-flavored sour soup containing anthocyanin and brewing method thereof |
| CN116254172A (en) * | 2023-03-20 | 2023-06-13 | 枣庄市杰诺生物酶有限公司 | Novel arginine purifying and preparing equipment and method |
| CN117247822A (en) * | 2023-08-30 | 2023-12-19 | 南通凯赛生化工程设备有限公司 | Annular spraying equipment |
| CN118006444A (en) * | 2024-04-08 | 2024-05-10 | 镇江格瑞生物工程有限公司 | Stirring type microorganism fermentation tank capable of efficiently dissolving oxygen |
| WO2024221428A1 (en) * | 2023-04-24 | 2024-10-31 | 河北兴柏农业科技股份有限公司 | Fermentation tank for producing avermectin and stirring apparatus thereof |
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| CN112304794B (en) * | 2020-10-10 | 2023-09-15 | 海南大学 | Seawater scouring corrosion testing machine and testing method thereof |
| CN112304794A (en) * | 2020-10-10 | 2021-02-02 | 海南大学 | Seawater scouring corrosion testing machine and testing method thereof |
| CN113087556A (en) * | 2021-02-20 | 2021-07-09 | 汤欣情 | Waste material catalytic fermentation equipment for livestock breeding |
| CN113322159A (en) * | 2021-06-01 | 2021-08-31 | 四川大学 | Fermentation cylinder for biological medicine |
| CN113201441A (en) * | 2021-06-10 | 2021-08-03 | 江苏丰泽生物工程设备制造有限公司 | Fermentation tank with air energy structure and capable of enhancing dissolved oxygen effect and use method of fermentation tank |
| CN113214957A (en) * | 2021-06-22 | 2021-08-06 | 苏州好唯加食品有限公司 | White vinegar production equipment and white vinegar production process |
| CN113976621A (en) * | 2021-10-27 | 2022-01-28 | 南京工业大学 | System and method for repairing heavy metal contaminated soil by microorganisms |
| CN114158710A (en) * | 2021-12-23 | 2022-03-11 | 贵州南山婆食品加工有限公司 | Ester-flavored sour soup containing anthocyanin and brewing method thereof |
| CN116254172A (en) * | 2023-03-20 | 2023-06-13 | 枣庄市杰诺生物酶有限公司 | Novel arginine purifying and preparing equipment and method |
| WO2024221428A1 (en) * | 2023-04-24 | 2024-10-31 | 河北兴柏农业科技股份有限公司 | Fermentation tank for producing avermectin and stirring apparatus thereof |
| CN117247822A (en) * | 2023-08-30 | 2023-12-19 | 南通凯赛生化工程设备有限公司 | Annular spraying equipment |
| CN117247822B (en) * | 2023-08-30 | 2024-05-10 | 南通凯赛生化工程设备有限公司 | Annular spraying equipment |
| CN118006444A (en) * | 2024-04-08 | 2024-05-10 | 镇江格瑞生物工程有限公司 | Stirring type microorganism fermentation tank capable of efficiently dissolving oxygen |
| CN118006444B (en) * | 2024-04-08 | 2024-06-21 | 镇江格瑞生物工程有限公司 | Stirring type microorganism fermentation tank capable of efficiently dissolving oxygen |
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