Fermentation tank system and method for producing sodium gluconate

Abstract

The invention provides a fermentation tank system and method for producing sodium gluconate, and relates to the field of fermentation tanks. The fermentation tank system for producing the sodium gluconate comprises a barrel, a pipeline system used for temperature control is arranged on the barrel, elliptical heads are arranged on the upper portion and the lower portion of the barrel, a discharging port provided with a control valve is formed in the elliptical head on the lower portion of the barrel, and a buffering system is installed at the bottom of the discharging port; the buffering system comprises a discharging pipe installed on the lower portion of the discharging port through a flange plate, a piston is arranged on the lower portion in the discharging pipe in a sliding mode, a second spring shorter than the first spring is arranged on the inner side of the first spring, an electromagnet is arranged in the second spring, and a strong magnet with the N pole facing downwards is arranged at the bottom of the piston. The strong magnet is arranged over the electromagnet, and the top end of the piston is connected with a blocking ball through a connecting rod. The operation temperature of the fermentation tank is accurately controlled through the pipeline system, and the bottom sealing performance of the fermentation tank is protected through the buffer system.

Description

Technical Field

[0001] The present invention relates to the technical field of fermentation tanks, in particular to a fermentation tank system and method for producing sodium gluconate. Background Art

[0002] Sodium gluconate is widely used in industry, and fermentation tanks are required for the production of sodium gluconate by fermentation.

[0003] Fermentation tanks play a crucial role in the industrialization of microbial fermentation processes for sodium gluconate production. Energy consumption indicators for fermentation tanks are a key component of production costs. To minimize costs, companies have traditionally increased the ventilation volume and reduced the agitator speed to reduce energy consumption. This is detrimental to microbial fermentation and increases sterile air consumption. Alternatively, some companies increase tank pressure during fermentation to reduce costs, significantly increasing dissolved oxygen and reducing energy consumption. However, excessive tank pressure can affect microbial fermentation and increase air pressure, increasing the energy consumption of the air compressor. Each fermentation tank is tested for sealing before use because existing fermentation tanks are too large. When the fermented sodium gluconate mixture is released, high pressure forms at the bottom discharge port of the fermentation tank. Furthermore, the gushing out of the high-pressure mixture during discharge can impact the bottom pipeline and cause vibration at the discharge port, leading to loose mechanical parts and affecting the sealing of the discharge and fermentation tank pipelines. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a fermentation tank system and method for producing sodium gluconate, which solves the problems of high cost when using the fermentation tank and loosening and leakage of pipelines caused by impact during discharge.

[0005] To achieve the above object, the present invention is implemented by the following technical solution: a fermentation tank system for producing sodium gluconate, comprising: A cylinder, the cylinder is provided with a piping system for temperature control, the upper and lower parts of the cylinder are provided with elliptical heads, the lower elliptical head is provided with a discharge port equipped with a control valve, and the bottom of the discharge port is provided with a buffer system; The buffer system includes a feed pipe installed at the lower part of the discharge port through a flange, a buffer groove is provided on one side of the feed pipe, and a feed pipe is connected to one side of the buffer groove, a piston is slidably provided at the lower part of the feed pipe, a spring 1 is provided between the bottom of the piston and the bottom of the feed pipe, a spring 2 shorter than the spring 1 is provided on the inner side of the spring 1, an electromagnet is provided in the spring 2, a strong magnet with the N pole facing downward is provided at the bottom of the piston, the strong magnet is provided directly above the electromagnet, and the top of the piston is connected to a baffle ball through a connecting rod, a conical hole is provided on the inner side of the upper part of the side close to the feed pipe and the discharge port, the conical hole is a cone with an inner diameter gradually increasing from top to bottom, and multiple layers of skirt leaves are provided on the inner side of the conical hole from top to bottom, and the skirt leaves are formed by connecting two semicircular elastic steel sheets, a circular cavity is formed on the inner side of the skirt leaves, and the inner diameter of the circular cavity increases from top to bottom, and connecting holes are provided on the skirt leaves.

[0006] Preferably, the piping system includes an inner coil arranged in the cylinder and an outer half pipe arranged outside the cylinder, the inner coil is arranged in an inverted cone-shaped spiral from top to bottom in the cylinder, the outer half pipe and the inner coil are connected by an automatic regulating valve, and the outer half pipe is provided with a cooling water outlet and a cooling water inlet.

[0007] Preferably, there are multiple outer half-tubes and they are sleeved on the outside of the cylinder from top to bottom. The cross section of the outer half-tube is semicircular and the diameter edge is close to the outer wall of the cylinder.

[0008] Preferably, a group of seats with a frame structure is provided on the outer side of the lower elliptical head, a baffle is provided on the inner side of the lower elliptical head, an air supply pipe connected to the air control system is provided on the upper part of the baffle, and a plurality of venturi tubes are provided on the air supply pipe.

[0009] Preferably, the upper elliptical head is respectively provided with a sugar solution inlet connected to the sugar solution pipeline, an inoculation port connected to the inoculation pipeline, a corn slurry inlet connected to the corn slurry pipeline, a lightweight calcium inlet connected to the lightweight calcium pipeline, a foaming agent inlet connected to the foaming agent pipeline, a sight glass for monitoring the reaction status, a lamp hole for lighting detection, an exhaust port for discharging the gas inside the cylinder, a safety valve port for ensuring the safe air pressure of the gas inside the cylinder, and a manhole for safety inspection, and a straight ladder is provided on the inside of the cylinder.

[0010] Preferably, the working pressure of the cylinder is 0.05 MPa, the working pressure of the inner coil is 0.3 MPa, and the working pressure of the outer half pipe is 0.3 MPa.

[0011] Preferably, a method for using a fermentation tank system for producing sodium gluconate comprises the following steps: S1, temperature control: the fermentation raw materials are introduced into the cylinder through the component on the upper elliptical head, and the mixed gas is introduced into the cylinder through the component on the lower elliptical head and stirred to form an environment suitable for the sodium gluconate fermentation reaction in the cylinder. Then, temperature-regulated water is introduced into the inner coil and the outer half pipe through the automatic regulating valve to control the temperature inside the cylinder; S2. Discharging shockproof: When discharging, unscrew the control valve on the discharge port, and the electromagnet is energized so that the strong magnet is magnetically repelled upward. The high-pressure mixed liquid in the cylinder enters the tapered hole downward and impacts the baffle ball, causing the baffle ball to squeeze the skirt leaves downward in sequence. At the same time, springs 1 and 2 are squeezed and activated in succession, and the piston gives the baffle ball a supporting force through the connecting rod. The skirt leaves elastically support the baffle ball and release the baffle balls in sequence due to excessive pressure. When the skirt leaves gradually release the baffle balls, the mixed liquid gradually fills the discharge pipe and the buffer tank through the connecting hole. After the baffle ball is separated from the skirt leaves, the electromagnet current is reversed so that the strong magnet is magnetically attracted. The piston moves the baffle ball to the lower part of the discharge pipe through the connecting rod. The discharge pipe, tapered hole, skirt leaves, discharge pipe, buffer tank and feed pipe form a channel for uniform flow of the mixed liquid to output the mixed liquid, and the sodium gluconate fermentation mixed liquid is output; S3. Reset: After the unloading is completed and cleaned, the electromagnet is reversed again to make the electromagnet and the strong magnet repel each other. Spring 2 and spring 1 are released in sequence to make the piston upward, so that the connecting rod drives the blocking ball to squeeze the multi-layer skirt leaves in sequence, so that the blocking ball is reset to the top of the tapered hole to provide shock protection for the next unloading.

[0012] The present invention provides a fermentation tank system and method for producing sodium gluconate, which has the following beneficial effects: The present invention increases the cooling area of ​​the outer half pipe and inner coil of the fermenter, and adds automatic control valves for the outer half pipe and inner coil to automatically control the water intake, thereby ensuring the fermentation temperature while saving cooling water and reducing inaccurate manual control and waste of circulating water. Furthermore, the addition of a steam automatic control valve automatically adjusts the steam intake, ensuring disinfection accuracy and reducing steam waste. Furthermore, the addition of a Venturi air nozzle improves gas dispersion and increases dissolved oxygen. Furthermore, the addition of an air intake automatic regulating valve automatically adjusts the air intake, ensuring the dissolved oxygen content of the fermenter while saving air intake and reducing waste. The entire system can be fully automatically controlled, saving labor costs, improving the accuracy of fermentation disinfection and fermentation control, and saving energy such as water, electricity, and gas.

[0013] The present invention unscrews the control valve on the discharge port when unscrewing, and the electromagnet is energized to cause the strong magnet to be magnetically repelled upward. The high-pressure mixed liquid in the cylinder enters the tapered hole downward and then impacts the blocking ball, causing the blocking ball to squeeze the skirt leaves downward in sequence. At the same time, spring one and spring two are squeezed and activated in succession, and the piston gives the blocking ball a supporting force through the connecting rod. The skirt leaves elastically support the blocking ball and then release the blocking balls in sequence due to excessive pressure. When the skirt leaves gradually release the blocking balls, the mixed liquid gradually fills the discharge pipe and the buffer tank through the connecting hole. After the blocking ball is separated from the skirt leaves, the electromagnet current is reversed to cause the strong magnet to be magnetically attracted. The piston causes the blocking ball to be at the lower part of the discharge pipe through the connecting rod. The discharge pipe, tapered hole, skirt leaves, discharge pipe, buffer tank and feed pipe form a channel for uniform flow of the mixed liquid to output the mixed liquid, and the sodium gluconate fermentation mixed liquid is output. The multi-layer skirt leaves are combined Spring one and spring two can effectively prevent the pressure of the baffle ball from being borne by the pipeline and the discharge port when it is impacted by the mixed liquid. At the same time, the multi-layer skirt leaves and connecting holes allow the mixed liquid to fill the discharge pipe after high pressure, thus preventing the mixed liquid from directly impacting the pipeline, the discharge pipe and the discharge port, and preventing the pipeline from loosening or reducing the sealing due to impact and heavy pressure. At the same time, when the baffle ball moves downward, the lower part is already filled with mixed liquid, so there will be no pipeline impact and vibration when the mixed liquid flows out. Combined with the electromagnet and the strong magnet, the downward elastic support of the baffle ball is improved. After that, the skirt leaves are reset through the automatic impact of the baffle ball, which ensures the automatic performance of the shockproof mechanism, and effectively offsets the high pressure formed in the discharge pipeline, avoiding loosening due to impact and vibration of the discharge port during discharge, improving the service life and ensuring the sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the present invention; Figure 2 A top view of the present invention; Figure 3 It is a partial enlarged view of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0015] Among them, 1. Group seat; 2. Baffle; 3. Elliptical head; 4. Venturi tube; 5. Inner coil; 6. Outer half pipe; 7. Cylinder; 8. Manhole; 9. Straight ladder; 10. Air supply pipe; 11. Exhaust port; 12. Discharge port; 13. Lamp hole; 14. Sugar solution inlet; 15. Inoculation port; 16. Corn pulp inlet; 17. Light calcium inlet; 18. Foaming agent inlet; 19. Sight glass; 20. Feeding pipe; 21. Conical hole; 22. Ball stopper; 23. Skirt leaf; 24. Connecting hole; 25. Spring 1; 26. Electromagnet; 27. Spring 2; 28. Strong magnet; 29. ​​Piston; 30. Connecting rod; 31. Buffer tank; 32. Feeding pipe. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example 1: Refer to Figure 1-4 As shown, an embodiment of the present invention provides a fermentation tank system for producing sodium gluconate, comprising: The cylinder 7 is provided with a piping system for temperature control. The upper and lower parts of the cylinder 7 are both provided with elliptical heads 3. The lower elliptical head 3 is provided with a discharge port 12 equipped with a control valve. The bottom of the discharge port 12 is provided with a buffer system. The buffer system includes a feed pipe 20 installed at the lower part of the discharge port 12 through a flange, a buffer groove 31 is provided on one side of the feed pipe 20, and a feed pipe 32 is connected to one side of the buffer groove 31. A piston 29 is slidably provided at the lower part of the feed pipe 20, and a spring 25 is provided between the bottom of the piston 29 and the bottom of the feed pipe 20. A spring 27 shorter than the spring 25 is provided inside the spring 25, and an electromagnet 26 is provided in the spring 27. A strong magnet 28 with an N pole facing downward is provided at the bottom of the piston 29, and the strong magnet 28 is provided just above the electromagnet 26. The top of the piston 29 is connected to A tapered hole 21 is provided on the inner side of the upper part of the side where the blocking ball 22, the discharge pipe 20 and the discharge port 12 are close. The tapered hole 21 is a cone with an inner diameter that gradually increases from top to bottom. A multi-layer skirt 23 is provided on the inner side of the tapered hole 21 from top to bottom. The skirt 23 is formed by connecting two semicircular elastic steel sheets. A circular cavity is formed on the inner side of the skirt 23 and the inner diameter of the circular cavity increases from top to bottom. Connecting holes 24 are provided on the skirt 23. Through the arrangement of the multi-layer skirt 23 and the connecting holes 24, the mixed liquid gradually fills the discharge pipe 20 when impacting the blocking ball 22, so that the pipeline will not cause the equipment sealing to deteriorate due to strong impact.

[0018] The piping system includes an inner coil 5 arranged in a cylinder 7 and an outer half pipe 6 arranged outside the cylinder 7. The inner coil 5 is arranged in an inverted cone-shaped spiral from top to bottom in the cylinder 7. The outer half pipe 6 and the inner coil 5 are connected by an automatic regulating valve. A cooling water outlet and a cooling water inlet are provided on the outer half pipe 6. There are multiple outer half-tubes 6, which are sleeved from top to bottom on the outside of the cylinder 7. The cross-section of the outer half-tubes 6 is semicircular, and the diameter edge is closely attached to the outer wall of the cylinder 7. The outer side of the lower elliptical head 3 is provided with a cluster seat 1 in a frame structure. The inner side of the lower elliptical head 3 is provided with a baffle 2. The upper part of the baffle 2 is provided with an air supply pipe 10 connected to the air control system. The air supply pipe 10 is provided with multiple venturi tubes 4. This fermentation system includes a cylinder 7, and the cylinder 7 is provided with an inner coil 5 and an outer half-tube 6 inside and outside. The fermenter is connected to the air supply pipe 10 of the air supply equipment, as well as the circulating water, steam automatic regulating valve, air automatic regulating valve, and the control system connected thereto. In addition, the baffle 2 and cluster seat 1 and other auxiliary equipment can fully automatically control the disinfection and fermentation process. Automatic disinfection: Steam automatic regulating valves are added to the bottom of the fermenter, the steam and air inlet, and the sampling port to automatically adjust the steam intake. The automatic regulating valve is connected to the PLC control cabinet via wires, and the air intake is controlled by the program to achieve the purpose of automatic disinfection. Fermentation process control: The fermenter is cooled using internal and external coils to increase the heat exchange area. This equipment is very practical for applications with special cooling requirements. The inner coils are arranged in a ring shape, achieving both cooling and a partial flow guide. Automatic regulating valves are used in the inner coils, linked to the fermenter temperature, to control the cooling water flow, achieving automatic control of the fermenter temperature. The air intake automatic control system automatically adjusts the air intake volume, while the air distributor primarily uses Venturi nozzles to increase air mixing and dissolved oxygen content. Increasing the cooling area of ​​the fermenter's outer half pipe 6 and inner coil 5, and adding automatic control valves to the outer half pipe 6 and inner coil 5, which automatically control the water intake, can both maintain the fermentation temperature and save cooling water, reducing inaccuracies in manual control and waste of circulating water. Adding a steam automatic control valve can automatically adjust the steam intake, ensuring disinfection accuracy and reducing steam waste. Adding a Venturi air nozzle improves gas dispersion and dissolved oxygen, and adding an automatic air intake control valve can automatically adjust the air intake to ensure dissolved oxygen in the fermenter, while also saving air intake and reducing waste. The entire system can be fully automated, saving labor costs, improving the accuracy of fermentation disinfection and fermentation control, and conserving energy such as water, electricity, and gas.

[0019] The upper elliptical head 3 is respectively provided with a sugar solution inlet 14 connected to the sugar solution pipeline, an inoculation port 15 connected to the inoculation pipeline, a corn slurry inlet 16 connected to the corn slurry pipeline, a lightweight calcium inlet 17 connected to the lightweight calcium pipeline, a foaming agent inlet 18 connected to the foaming agent pipeline, a sight glass 19 for monitoring the reaction status, a lamp hole 13 for lighting detection, an exhaust port 11 for discharging the gas inside the cylinder 7, a safety valve port to ensure the safe air pressure of the gas inside the cylinder 7, and a manhole 8 for safety inspection. A vertical ladder 9 is provided on the inside of the cylinder 7.

[0020] The working pressure of the cylinder 7 is 0.05 MPa, the working pressure of the inner coil 5 is 0.3 MPa, and the working pressure of the outer half pipe 6 is 0.3 MPa.

[0021] Example 2: Reference Figure 1-4 As shown, an embodiment of the present invention provides a method for using a fermentation tank system for producing sodium gluconate, comprising the following steps: S1. Temperature control: Fermentation raw materials are introduced into the cylinder 7 through the components on the upper elliptical head 3, and mixed gas is introduced into the cylinder 7 through the components on the lower elliptical head 3 and stirred to form an environment suitable for the sodium gluconate fermentation reaction in the cylinder 7. Afterwards, temperature-regulated water is introduced into the inner coil 5 and the outer half pipe 6 through the automatic regulating valve to control the temperature inside the cylinder 7. Through the mutual cooperation between the pipelines and the combination of the automatic regulating valve, the temperature inside the cylinder 7 is accurately controlled, and the control process is efficient. The automatic control valve can automatically control the water intake, which can not only ensure the fermentation temperature, but also save cooling water, reduce inaccurate manual control and waste of circulating water; add a steam automatic control valve, which can automatically adjust the steam intake, ensure disinfection accuracy, and reduce steam waste; add a venturi tube 4 to improve gas dispersion and melt oxygen, and add an air supply pipe 10 to automatically adjust the air intake, ensure the dissolved oxygen content of the fermentation tank, save air intake, and reduce waste. The entire system can be fully automatically controlled, saving labor costs, improving the accuracy of fermentation disinfection and fermentation control, and saving water, electricity, gas and other energy; S2. Discharging shockproof: When discharging, unscrew the control valve on the discharge port 12, and the electromagnet 26 is energized to make the strong magnet 28 subject to upward magnetic repulsion. The high-pressure mixed liquid in the cylinder 7 enters the tapered hole 21 downward and impacts the blocking ball 22, causing the blocking ball 22 to squeeze the skirt leaf 23 downward in turn. At the same time, the spring 1 25 and the spring 2 27 squeeze the piston 29 in turn. The piston 29 gives the blocking ball 22 a supporting force through the connecting rod 30. The skirt leaf 23 elastically supports the blocking ball 22 and releases the blocking ball 22 in turn due to excessive pressure. 2. When the skirt 23 gradually releases the blocking ball 22, the mixed liquid gradually fills the discharge pipe 20 and the buffer tank 31 through the connecting hole 24. After the blocking ball 22 is separated from the skirt 23, the current of the electromagnet 26 is reversed to make the strong magnet 28 magnetically attracted. The piston 29 makes the blocking ball 22 at the lower part of the discharge pipe 20 through the connecting rod 30. The discharge port 12, the tapered hole 21, the skirt 23, the discharge pipe 20, the buffer tank 31 and the feeding pipe 32 form a channel for uniform flow of the mixed liquid to output the mixed liquid, and the sodium gluconate fermentation The multi-layer skirt 23 and the connecting hole 24 make the mixed liquid fill the discharge pipe 20 after the high pressure, thus preventing the mixed liquid from directly impacting the discharge pipe 20 and the discharge port 12, thereby preventing the discharge pipe 20 and the discharge port 12 from loosening or reducing the sealing due to impact and heavy pressure. At the same time, when the blocking ball 22 moves downward, since the lower part is already filled with mixed liquid, there will be no pipeline impact and vibration when the mixed liquid flows out. Combined with the cooperation of the electromagnet 26 and the strong magnet 28, the downward elastic support of the blocking ball 22 is enhanced, and then the skirt 23 is reset by the automatic impact of the blocking ball 22, thereby ensuring the automatic performance of the shockproof mechanism, so that the high pressure formed in the discharge pipe 20 is effectively offset, avoiding loosening caused by impact and vibration of the discharge port 12 during discharge, thereby improving the service life and ensuring the sealing. S3. Reset: After the unloading is completed and cleaned, the electromagnet 26 is reversed again to make the electromagnet 26 and the strong magnet 28 repel each other. The spring 27 and the spring 1 25 are released in sequence to make the piston 29 upward, so that the connecting rod 30 drives the blocking ball 22 to squeeze the multi-layer skirt leaves 23 in sequence, so that the blocking ball 22 is reset to the top of the tapered hole 21 to provide shockproof for the next unloading. The electromagnet 26 is a bidirectional magnetic pole that can change the direction of current. As long as the direction of current is changed, the magnetic pole of the electromagnet 26 will change, thereby realizing the attraction and repulsion of the strong magnet 28. This belongs to the prior art and will not be described in detail here.

[0022] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fermentation tank system for producing sodium gluconate, characterized in that: include: A cylinder (7), wherein a piping system for temperature control is provided on the cylinder (7), an elliptical head (3) is provided at the upper and lower parts of the cylinder (7), a discharge port (12) equipped with a control valve is provided on the lower elliptical head (3), and a buffer system is installed at the bottom of the discharge port (12); The buffer system includes a feed pipe (20) installed at the lower part of the discharge port (12) through a flange, a buffer groove (31) is provided on one side of the feed pipe (20), and a feed pipe (32) is connected to one side of the buffer groove (31), a piston (29) is slidably provided at the lower part of the feed pipe (20), a spring 1 (25) is provided between the bottom of the piston (29) and the bottom of the feed pipe (20), a spring 2 (27) shorter than the spring 1 (25) is provided inside the spring 1 (25), an electromagnet (26) is provided in the spring 2 (27), and a strong magnet (28) with the N pole facing downward is provided at the bottom of the piston (29). The strong magnet (28) is arranged just above the electromagnet (26), and the top end of the piston (29) is connected to the blocking ball (22) through a connecting rod (30). A conical hole (21) is provided on the inner side of the upper part of the side where the discharge pipe (20) and the discharge port (12) are close. The conical hole (21) is a cone with an inner diameter gradually increasing from top to bottom. Multiple layers of skirt leaves (23) are provided on the inner side of the conical hole (21) from top to bottom. The skirt leaves (23) are formed by connecting two semicircular elastic steel sheets. A circular cavity is formed on the inner side of the skirt leaves (23) and the inner diameter of the circular cavity increases from top to bottom. A connecting hole (24) is provided on each of the skirt leaves (23).

2. A fermentation tank system for producing sodium gluconate according to claim 1, characterized in that: The piping system comprises an inner coil (5) arranged in a cylinder (7) and an outer half pipe (6) arranged outside the cylinder (7), wherein the inner coil (5) is arranged in an inverted conical spiral from top to bottom in the cylinder (7), the outer half pipe (6) and the inner coil (5) are connected by an automatic regulating valve, and a cooling water outlet and a cooling water inlet are provided on the outer half pipe (6).

3. A fermentation tank system for producing sodium gluconate according to claim 2, characterized in that: There are a plurality of outer half-tubes (6) which are sleeved on the outside of the cylinder (7) from top to bottom. The cross section of the outer half-tubes (6) is semicircular and the diameter edge is in close contact with the outer wall of the cylinder (7).

4. A fermentation tank system for producing sodium gluconate according to claim 1, characterized in that: A group seat (1) having a frame structure is provided on the outer side of the lower elliptical head (3), a baffle (2) is provided on the inner side of the lower elliptical head (3), an air supply pipe (10) connected to an air control system is provided on the upper part of the baffle (2), and a plurality of venturi tubes (4) are provided on the air supply pipe (10).

5. A fermentation tank system for producing sodium gluconate according to claim 1, characterized in that: The elliptical head (3) at the upper part is respectively provided with a sugar solution inlet (14) connected to the sugar solution pipeline, an inoculation port (15) connected to the inoculation pipeline, a corn slurry inlet (16) connected to the corn slurry pipeline, a light calcium inlet (17) connected to the light calcium pipeline, a foaming agent inlet (18) connected to the foaming agent pipeline, a sight glass (19) for monitoring the reaction state, a lamp hole (13) for lighting detection, an exhaust port (11) for discharging the internal gas of the cylinder (7), a safety valve port for ensuring the safe pressure of the internal gas of the cylinder (7), and a manhole (8) for safety inspection. A vertical ladder (9) is provided on the inner side of the cylinder (7).

6. A fermentation tank system for producing sodium gluconate according to claim 2, characterized in that: The working pressure of the cylinder (7) is 0.05 MPa, the working pressure of the inner coil (5) is 0.3 MPa, and the working pressure of the outer half pipe (6) is 0.3 MPa.

7. The method for using a fermentation tank system for producing sodium gluconate according to any one of claims 1 to 6, wherein: The following steps are involved: S1, temperature control: the fermentation raw materials are introduced into the cylinder (7) through the components on the upper elliptical head (3), and the mixed gas is introduced into the cylinder (7) through the components on the lower elliptical head (3) and stirred to form an environment suitable for the sodium gluconate fermentation reaction in the cylinder (7). Thereafter, temperature-regulated water is introduced into the inner coil (5) and the outer half pipe (6) through the automatic regulating valve to control the temperature inside the cylinder (7); S2. Discharging shockproof: When discharging, unscrew the control valve on the discharge port (12), and the electromagnet (26) is energized to make the strong magnet (28) subject to upward magnetic repulsion. The high-pressure mixed liquid in the cylinder (7) enters the tapered hole (21) downward and then impacts the blocking ball (22), causing the blocking ball (22) to squeeze the skirt leaf (23) downward in sequence. At the same time, the spring 1 (25) and the spring 2 (27) squeeze the piston (29) in sequence. The piston (29) gives the blocking ball (22) a supporting force through the connecting rod (30). The skirt leaf (23) elastically supports the blocking ball (22) and then releases the blocking ball (22) in sequence due to excessive pressure. The skirt leaf (23) 3) When the blocking ball (22) is gradually released, the mixed liquid gradually fills the discharge pipe (20) and the buffer tank (31) through the connecting hole (24). After the blocking ball (22) is separated from the skirt (23), the current of the electromagnet (26) is reversed so that the strong magnet (28) is magnetically attracted. The piston (29) causes the blocking ball (22) to be at the lower part of the discharge pipe (20) through the connecting rod (30). The discharge pipe (12), the tapered hole (21), the skirt (23), the discharge pipe (20), the buffer tank (31) and the feeding pipe (31) form a channel for uniform flow of the mixed liquid to output the mixed liquid, and the sodium gluconate fermentation mixed liquid is output; S3. Reset: After the unloading is completed and cleaned, the electromagnet (26) is reversed again to make the electromagnet (26) and the strong magnet (28) repel each other, and the spring 2 (27) and the spring 1 (25) are released in sequence to make the piston (29) upward, so that the connecting rod (30) drives the blocking ball (22) to squeeze the multi-layer skirt leaves (23) in sequence, so that the blocking ball (22) is reset to the top of the tapered hole (21) for shock protection during the next unloading.

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