Fermentation tank based on magnetic suspension stirring and ultrasonic vibration plate

Abstract

The utility model relates to the technical field of fermentation tanks, and discloses a fermentation tank based on magnetic suspension stirring and ultrasonic vibration plates, which comprises a fermentation tank, a magnetic suspension stirrer and an ultrasonic vibration system are mounted on the fermentation tank, and the ultrasonic vibration system comprises a control system, a cooling liquid tank, a plurality of vibration plate groups and a heat exchange tube; the multiple vibration plate sets are sequentially communicated through the heat exchange pipes, and the head vibration plate set and the tail vibration plate set are communicated through the cooling liquid box to form a closed loop. The multiple vibration plate sets are distributed in an array mode in the circumferential direction of the tank body, and a longitudinal interval exists between every two adjacent vibration plate sets and is not smaller than the height of one vibration plate set. Due to the adoption of the magnetic suspension stirrer, the problem that a traditional mechanical stirring shaft occupies the central area of the tank body, so that materials around the shaft center are poor in flowability and sterilization dead angles are formed is solved; by adopting the ultrasonic vibration system, the problems that high-viscosity materials are prone to adhering to the tank wall, a gap between a conventional scraper blade and the tank wall is difficult to adjust, and residues breed infectious microbes are solved.

Description

Technical Field

[0001] This utility model relates to the field of fermentation tank technology, specifically, to a fermentation tank based on magnetic levitation stirring and ultrasonic vibration plate. Background Technology

[0002] A fermenter is a container used in microbial fermentation processes, widely applied in the food, pharmaceutical, and chemical industries. In these industries, microbial fermentation is used to produce various products such as alcohol, soy sauce, antibiotics, and amino acids. Traditional fermenters typically employ mechanical agitators to ensure thorough mixing and fermentation. However, the agitator shaft occupies the central area of ​​the tank, resulting in poor material flow around the shaft and creating sterilization dead zones during subsequent cleaning and sterilization. If the fermented material has a certain viscosity, it will adhere to the inner wall of the fermenter. Since the gap between the conventional scraper and the tank wall is difficult to adjust, incomplete cleaning is possible, and the residue can easily breed bacteria, affecting subsequent use. Therefore, a fermenter with good agitation, preventing material adhesion, and minimizing bacterial residue is needed. Utility Model Content

[0003] The purpose of this invention is to provide a fermenter based on magnetic levitation stirring and ultrasonic vibrating plate, which solves the problems of existing fermenters where the mechanical stirring shaft occupies the central area of ​​the tank, resulting in poor material flow around the shaft and easy formation of sterilization dead corners during subsequent cleaning; high-viscosity materials are difficult to clean from the fermenter wall, and the residue is prone to breeding of miscellaneous bacteria.

[0004] This utility model is achieved through the following technical solution: a fermenter based on magnetic levitation stirring and ultrasonic vibrating plates, comprising a fermenter, on which a magnetic levitation stirrer is installed, the fermenter being mounted on a mounting frame, the fermenter including a tank body, the tank body being provided with a feed inlet and a discharge outlet, both of which are provided with valves; the fermenter is also equipped with an ultrasonic vibration system, the ultrasonic vibration system including a control system, a coolant tank, and multiple vibrating plate groups and heat exchange tubes; the heat exchange tubes connect multiple vibrating plate groups sequentially, the coolant tank connects the first and last vibrating plate groups to form a closed loop, the vibrating plate groups are all installed on the inner sidewall of the tank body; the multiple vibrating plate groups are arranged in an array along the circumference of the tank body, adjacent vibrating plate groups have a longitudinal spacing, and the spacing is not less than the height of one vibrating plate group.

[0005] To better realize this utility model, the vibrating plate group consists of 6 units, and the working coverage range of the vibrating plate group is 60°-80°; the height of the 6 vibrating plate groups is the same as the height of the tank.

[0006] To better realize this utility model, the heat exchange tube further includes a pipe and heat exchange plates. One end of the pipe is connected to the outlet of a vibrating plate group, and the other end is connected to the inlet of another vibrating plate group. The heat exchange plates are sleeved on the pipe and are composed of multiple annular plates and multiple strip plates.

[0007] To better realize this utility model, the vibrating plate assembly further includes a shell and an ultrasonic vibrating plate. The shell encloses the ultrasonic vibrating plate and a spiral flow channel baffle is provided on the shell. Through the cooperation of the shell, the ultrasonic vibrating plate, and the flow channel baffle, a spiral cooling flow channel is formed. One end of the cooling flow channel is connected to the water inlet of the vibrating plate assembly, and the other end is connected to the water outlet of the vibrating plate assembly.

[0008] To better realize this utility model, the tank body is further provided with an installation plate, a coolant tank is installed on the installation plate, a pump is provided in the coolant tank, the drain end of the coolant tank is connected to the inlet of the first vibrating plate group through a hose, the outlet end of the coolant tank is connected to the outlet of the last vibrating plate group through a hose, and a level gauge is provided on the coolant tank.

[0009] To better realize this utility model, a spring is further provided between the coolant tank and the mounting plate, and a pressure-sensitive alarm is provided on the mounting plate.

[0010] To better realize this utility model, the magnetic levitation stirrer further includes a magnetic levitation stirring motor, a rotating shaft sleeve, and a stirring paddle. The rotating shaft sleeve is rotatably connected to the tank body, and the stirring paddle is mounted on the rotating shaft sleeve. The stirring paddle includes a first blade and a second blade, and the first blade and the second blade rotate in opposite directions.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0012] (1) This utility model solves the problem that the traditional mechanical stirring shaft occupies the central area of ​​the tank, resulting in poor material flow around the shaft and forming a sterilization dead corner by adopting a magnetic levitation stirrer; it solves the problem that high viscosity materials are easy to adhere to the tank wall, the gap between the conventional scraper and the tank wall is difficult to adjust, and the residue breeds bacteria by adopting an ultrasonic vibration system; in addition, it solves the problem that the stirring speed is increased in order to cover the stirring blind area, resulting in increased energy consumption.

[0013] (2) By setting up a vibrating plate group and a cooling channel, this utility model can greatly improve the heat exchange effect; the position design between the vibrating plate groups enables the heat exchange tubes to operate more efficiently; and prevents the heat generated by the vibrating plate group during operation from changing the fermentation environment of the material in the fermenter.

[0014] (3) By setting up a spring and a pressure-sensitive alarm, this utility model will issue an alarm when the coolant tank or heat exchange tube or even the vibrating plate assembly leaks, reminding the staff to carry out maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is an axial sectional view of the overall structure of this utility model.

[0017] Figure 3 This is a circumferential sectional view of the overall structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the agitator structure.

[0019] Figure 5 This is a schematic diagram of an ultrasonic vibration system.

[0020] Figure 6 This is a schematic diagram of the heat exchanger tube structure.

[0021] Figure 7 This is a schematic diagram of the coolant tank structure.

[0022] Figure 8 This is a cross-sectional view of the coolant tank structure.

[0023] Figure 9 This is an unfolded sectional view of the vibrating plate assembly.

[0024] Figure 10 This is a partial structural cross-sectional view of the vibrating plate assembly.

[0025] Wherein: 101-Tank body; 102-Valve; 103-Heat exchange tube; 1031-Pipeline; 1032-Heat exchange plate; 104-Coolant tank; 105-Magnetic levitation stirring motor; 106-Discharge pipe; 107-Vibrating plate assembly; 1071-Outer shell; 1072-Ultrasonic vibrating plate; 1073-Flow channel baffle; 108-First impeller; 109-Second impeller; 110-Mounting plate; 111-Rotating bushing; 112-Pressure sensor alarm; 113-Level gauge; 114-Spring; 115-Pump; 116-Mounting bracket. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] This embodiment provides a fermenter based on magnetic levitation stirring and ultrasonic vibrating plate, specifically as follows: Figures 1-5 As shown, the invention includes a fermentation tank equipped with a magnetic levitation stirrer. The magnetic levitation stirrer is a commercially available device, and its working principle is clear to those skilled in the art, so it will not be described again. The fermentation tank is mounted on a mounting frame 116 and includes a tank body 101. The tank body 101 has an inlet and a outlet, both equipped with valves 102. The fermentation tank is also equipped with an ultrasonic vibration system, which includes a control system, a coolant tank 104, multiple vibrating plate assemblies 107, and heat exchange tubes 103. The control system is used to control the vibration of the vibrating plate assemblies 107; its principle and structure are also existing technology, and this invention does not advocate for controlling the vibration of the vibrating plate assemblies 107. The structure related to ultrasonic generation, such as the piezoelectric ceramics in the control system and the vibrating plate group 107, is an improvement point and will not be described in detail here. The heat exchange tube 103 connects multiple vibrating plate groups 107 in sequence, and the coolant tank 104 connects the first and last two vibrating plate groups 107 to form a closed loop. The vibrating plate groups 107 are all installed on the inner side wall of the tank body 101. The multiple vibrating plate groups 107 are distributed in a circumferential array along the tank body 101. The equidistant distribution of the vibrating plate groups 107 allows the vibrating plate groups 107 to vibrate the material evenly. There is a longitudinal spacing between adjacent vibrating plate groups 107, and the spacing is not less than the height of one vibrating plate group 107. The spacing setting allows the heat exchange tube 103 to be as long as possible to improve the heat dissipation effect of the heat exchange tube 103.

[0030] When the material is fermenting in the fermentation tank, the magnetic levitation stirrer is activated, causing the material in the fermentation tank to rotate and stir. At the same time, the control system controls the vibration plate assembly 107 to vibrate, improving stirring efficiency, preventing material agglomeration, and reducing air bubbles. Meanwhile, the coolant in the coolant tank 104 also flows through the heat exchange pipes 103 through multiple vibration plate assemblies 107, and then flows back to the coolant tank 104, dissipating heat from the vibration plate assemblies 107 in sequence, preventing the operation of the vibration plate assemblies 107 from affecting the temperature in the fermentation tank and causing a decrease in the quality of material fermentation.

[0031] The above setup solves the problem of poor material flow around the shaft and the formation of sterilization dead zones caused by the use of a magnetic levitation stirrer, which occupies the central area of ​​the tank and creates a sterilization dead zone. The use of an ultrasonic vibration system solves the problem of high-viscosity materials easily adhering to the tank wall, the difficulty in adjusting the gap between the conventional scraper and the tank wall, and the growth of bacteria from residues. In addition, the increased stirring speed to cover the stirring blind zone leads to increased energy consumption.

[0032] Example 2:

[0033] This embodiment further expands the ultrasonic vibration system based on the above embodiments, specifically as follows: Figure 5 As shown, there are 6 vibrating plate groups 107, and the working coverage range of the vibrating plate groups 107 is 60°-80°; the height of the 6 vibrating plate groups 107 is the same as the height of the tank body 101.

[0034] The range and number of vibrating plate groups 107 are coordinated to ensure that the vibrating plate groups 107 can completely cover the circumference of the tank 101. The specific longitudinal distribution of the vibrating plate groups 107 is as follows: the first vibrating plate group 107 connected to the lower end of the coolant tank 104 is the first, followed by the second, third, and so on, up to the sixth. The sixth vibrating plate group 107 is connected to the upper end of the coolant tank 104. If the height of the first vibrating plate group 107 is one unit, then the height of the second vibrating plate group 107 is four units, the height of the third vibrating plate group 107 is two units, the height of the fourth vibrating plate group 107 is five units, the height of the fifth vibrating plate group 107 is three units, and the height of the sixth vibrating plate group 107 is six units; that is, the height of the vibrating plate groups 107 is distributed in a wave-like pattern, with peaks and troughs; however, the overall height is increasing. This arrangement allows the heat exchange tube 103 to be as long as possible, and the overall vibration effect of the vibrating plate groups 107 arranged in this way is better than that of a sequentially increasing combination.

[0035] like Figure 6 As shown, the heat exchange tube 103 includes a pipe 1031 and heat exchange plates 1032. One end of the pipe 1031 is connected to the outlet of a vibrating plate assembly 107, and the other end is connected to the inlet of another vibrating plate assembly 107. The heat exchange plates 1032 are sleeved on the pipe 1031 and are composed of multiple annular plates and multiple strip plates. The heat of the coolant in the pipe 1031 is transferred to the heat exchange plates 1032, and the annular plates and strip plates can accelerate heat dissipation and improve the heat dissipation effect.

[0036] like Figure 9 , Figure 10As shown, the vibrating plate assembly 107 includes a housing 1071 and an ultrasonic vibrating plate 1072. The housing 1071 encloses the ultrasonic vibrating plate 1072, and a spiral flow channel baffle 1073 is provided on the housing 1071. Through the cooperation of the housing 1071, the ultrasonic vibrating plate 1072, and the flow channel baffle 1073, a spiral cooling flow channel is formed. One end of the cooling flow channel is connected to the water inlet of the vibrating plate assembly 107, and the other end is connected to the water outlet of the vibrating plate assembly 107. After the coolant flows in from the water inlet, it flows around the ultrasonic vibrating plate 1072 in a spiral path in the cooling flow channel until it flows out from the water outlet. During this process, the heat of the ultrasonic vibrating plate 1072 is carried away by the coolant, and the setting of the cooling flow channel can greatly improve the heat exchange effect.

[0037] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0038] Example 3:

[0039] This embodiment further expands upon the above embodiment by modifying the coolant tank 104, specifically as follows: Figure 5 , Figure 7 , Figure 8 As shown, a mounting plate 110 is provided on the tank body 101, and a coolant tank 104 is installed on the mounting plate 110. A pump 115 is provided in the coolant tank 104. The drain end of the coolant tank 104 is connected to the inlet of the first vibrating plate group 107 through a hose, and the outlet end of the coolant tank 104 is connected to the outlet of the last vibrating plate group 107 through a hose. A level gauge 113 is provided on the coolant tank 104.

[0040] When pump 115 starts, coolant enters the first vibrating plate group 107 through the hose, and then flows back to the coolant tank 104 from the sixth vibrating plate group 107. The level gauge 113 is for the convenience of the staff to observe the level of coolant in the coolant tank 104.

[0041] like Figure 7 , Figure 8 As shown, a spring 114 is installed between the coolant tank 104 and the mounting plate 110, and a pressure-sensitive alarm 112 is installed on the mounting plate 110. When the coolant level in the coolant tank 104 is normal, the spring 114 applies a force to the coolant tank 104, causing the coolant tank 104 to move away from the pressure-sensitive alarm 112. When there is a leak in the coolant tank 104, the heat exchange tube 103, or even the vibrating plate assembly 107, the coolant level in the coolant tank 104 will decrease. At this time, the overall weight of the coolant tank 104 will decrease, and the spring 114 will cause the coolant tank 104 to move upward, touching the pressure-sensitive alarm 112, and then sounding an alarm to remind the staff to carry out maintenance.

[0042] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0043] Example 4:

[0044] This embodiment further expands upon the magnetic levitation stirrer based on the above embodiments, specifically as follows: Figure 2 , Figure 4 As shown, the magnetic levitation stirrer includes a magnetic levitation stirring motor 105, a rotating bushing 111, and a stirring paddle. The rotating bushing 111 is rotatably connected to the tank body 101, and the stirring paddle is mounted on the rotating bushing 111. The stirring paddle includes a first blade 108 and a second blade 109, with the first blade 108 and the second blade 109 rotating in opposite directions. Through improvements to the stirring paddle, when the stirring paddle rotates, the first blade 108 and the second blade 109 not only perform circumferential stirring of the material but also exert longitudinal thrust, and the longitudinal thrusts are opposite; thus, the material experiences longitudinal stirring.

[0045] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A fermentation tank based on magnetic suspension stirring and ultrasonic vibration plate, comprising a fermentation tank, a magnetic suspension stirrer is installed on the fermentation tank, and the fermentation tank is installed on a mounting frame (116), characterized in that: The fermentation tank comprises a tank body (101) provided with a feeding port and a discharging port, wherein valves (102) are arranged on the feeding port and the discharging port; an ultrasonic vibration system is further arranged on the fermentation tank, wherein the ultrasonic vibration system comprises a control system, a cooling liquid tank (104), and a plurality of vibration plate groups (107) and heat exchange pipes (103); the heat exchange pipes (103) are connected with the plurality of vibration plate groups (107) in sequence, the cooling liquid tank (104) is connected with the first and last vibration plate groups (107) to form a closed loop, and the vibration plate groups (107) are arranged on the inner side wall of the tank body (101); the plurality of vibration plate groups (107) are arranged in a circumferential array along the tank body (101), and adjacent vibration plate groups (107) have a longitudinal spacing, and the spacing is not less than the height of one vibration plate group (107).

2. The fermentation tank based on magnetic levitation stirring and ultrasonic vibration plate according to claim 1, characterized in that: The number of the vibration plate groups (107) is six, and the working coverage range of the vibration plate groups (107) is 60°-80°; the height of the six vibration plate groups (107) is the same as the height of the tank body (101).

3. The fermentation tank based on magnetic levitation stirring and ultrasonic vibration plate according to claim 1, characterized in that: The heat exchange pipe (103) comprises a pipe (1031) and heat exchange fins (1032), one end of the pipe (1031) is connected with the water outlet of one vibration plate group (107), the other end of the pipe (1031) is connected with the water inlet of another vibration plate group (107), the heat exchange fins (1032) are sleeved on the pipe (1031), and the heat exchange fins (1032) are combined by a plurality of annular fins and a plurality of strip fins.

4. The fermentation tank based on magnetic levitation stirring and ultrasonic vibration plate according to claim 1, characterized in that: The vibration plate group (107) comprises a shell (1071) and an ultrasonic vibration plate (1072), the ultrasonic vibration plate (1072) is wrapped by the shell (1071), the shell (1071) is provided with a spiral flow channel partition plate (1073), and a spiral cooling flow channel is formed through cooperation of the shell (1071), the ultrasonic vibration plate (1072), and the flow channel partition plate (1073); one end of the cooling flow channel is connected with the water inlet of the vibration plate group (107), and the other end of the cooling flow channel is connected with the water outlet of the vibration plate group (107).

5. The fermentation tank based on magnetic levitation stirring and ultrasonic vibration plate according to any one of claims 1-4, characterized in that: The tank body (101) is provided with a mounting plate (110), the cooling liquid tank (104) is mounted on the mounting plate (110), a pump (115) is arranged in the cooling liquid tank (104), the water outlet end of the cooling liquid tank (104) is connected with the water inlet of the first vibration plate group (107) through a hose, the water inlet end of the cooling liquid tank (104) is connected with the water outlet of the last vibration plate group (107) through a hose, and a liquid level meter (113) is arranged on the cooling liquid tank (104).

6. The fermentation tank based on magnetic levitation stirring and ultrasonic vibration plate according to claim 5, characterized in that: A spring (114) is arranged between the cooling liquid tank (104) and the mounting plate (110), and a pressure-sensitive alarm (112) is arranged on the mounting plate (110).

7. The fermenter based on magnetic levitation stirring and ultrasonic vibration plate according to any one of claims 1, 2, 3, 4 or 6, characterized in that: The magnetic suspension stirrer comprises a magnetic suspension stirring motor (105), a rotating shaft sleeve (111) and a stirring paddle, the rotating shaft sleeve (111) is rotationally connected to the tank body (101), the stirring paddle is installed on the rotating shaft sleeve (111), and the stirring paddle comprises first blades (108) and second blades (109), the first blades (108) and the second blades (109) are opposite in rotation direction.

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