Fermentation liquid filtering and sterilizing equipment

Abstract

The utility model relates to fermentation liquor filtering and sterilizing equipment. Comprising a fermentation device, a solid-liquid separation device and a steam generation device. The fermentation device is provided with an accommodating cavity as well as an air inlet, a first feed port and a first discharge port which are communicated with the accommodating cavity, and the first discharge port is used for discharging a fermentation mixture; the solid-liquid separation device is provided with a second feed port and a second discharge port, the second feed port is communicated with the first discharge port, the second feed port is used for introducing a fermentation mixture, and the second discharge port is used for discharging fermentation liquor; the steam generating device is provided with an air outlet, the air outlet is communicated with the air inlet, the steam generating device is used for generating steam, and the steam can sequentially flow through the air inlet and the first discharging opening to enter the second feeding opening. By arranging the steam generation device, in-situ sterilization of the solid waste can be achieved, the step of taking out and transferring the bacterium-carrying solid waste from the solid-liquid separation device does not need to be executed, the treatment efficiency is improved, and meanwhile the biological safety risk caused by direct contact between personnel and the bacterium-carrying solid waste is reduced.

Description

Technical Field

[0001] This application relates to the field of fermentation broth treatment technology, and in particular to a fermentation broth filtration and sterilization device. Background Technology

[0002] In the treatment of fermentation broth in biotechnology and industrial production, liquid substances (including enzymes and bioactive substances) are separated from the fermentation broth using a solid-liquid separation device, while solid waste (bacterial cells and insoluble culture medium) is discarded. Before disposal, the solid waste needs to be sterilized. Currently, the solid waste is manually removed from the solid-liquid separation device and then transferred to a sterilization unit for independent sterilization. This sterilization method is inefficient and increases the safety risks associated with personnel coming into contact with bacteria in the solid waste.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] Therefore, it is necessary to provide a fermentation broth filtration and sterilization device to address the problems of low efficiency and increased safety hazards caused by personnel coming into contact with bacteria in solid waste using current sterilization methods.

[0005] A fermentation broth filtration and sterilization device, comprising:

[0006] The fermentation device is provided with a receiving cavity and an air inlet, a first feed inlet and a first discharge outlet communicating with the receiving cavity, wherein the first discharge outlet is used to discharge the fermentation mixture;

[0007] A solid-liquid separation device is provided with a second inlet and a second outlet, the second inlet being connected to the first outlet, the second inlet being used to introduce the fermentation mixture, and the second outlet being used to discharge the fermentation broth; and

[0008] A steam generator is provided with an outlet connected to an inlet. The steam generator is used to generate steam, which can flow sequentially through the inlet and the first outlet to enter the second inlet.

[0009] In one embodiment, the air outlet is connected to the air inlet via a first pipe, and the first pipe is provided with a first valve for switching the first pipe on and off; the first discharge outlet is connected to the second feed inlet via a second pipe, and the second pipe is provided with a second valve for switching the second pipe on and off.

[0010] In one embodiment, the first pipe is connected to the second pipe via a third pipe, one end of the third pipe is located between the air outlet and the first valve, and the other end of the third pipe is located between the second valve and the second feed inlet.

[0011] In one embodiment, the first pipe is further provided with a third valve for switching the first pipe on and off, the third valve being located between the air outlet and the third pipe.

[0012] In one embodiment, the solid-liquid separation device includes:

[0013] frame;

[0014] The filter assembly includes multiple sets arranged sequentially along the length of the frame, and each set of filter assemblies is provided with a through second inlet and a through second outlet;

[0015] A clamping device is provided at the end of the plurality of filter components along the length of the frame. The clamping device is used to clamp all the filter components so that the second inlet of each filter component is interconnected to form a feeding channel, and the second outlet of each filter component is interconnected to form a discharge channel.

[0016] In one embodiment, each of the filter components includes a filter element and a filter frame. The filter frame has a through-hole groove, the filter element is fitted into the through-hole groove, the filter element has a second feed port through-hole along the length of the frame, and the filter element has a second discharge port through-hole along the length of the frame.

[0017] In one embodiment, the steam generator includes a housing and a heating assembly. The housing has a accommodating cavity and an air outlet and a water inlet communicating with the accommodating cavity. The heating assembly is disposed within the accommodating cavity.

[0018] In one embodiment, the fermentation broth filtration and sterilization equipment further includes a pumping device, which has an inlet and an outlet. The inlet is connected to the first discharge port, and the outlet is connected to the second feed port.

[0019] In one embodiment, the solid-liquid separation device further includes a third discharge port for discharging solid waste.

[0020] In one embodiment, the fermentation apparatus further includes an exhaust port that is in communication with the containment cavity and is used to discharge exhaust gas from the containment cavity.

[0021] The first inlet of the fermentation device in the aforementioned fermentation broth filtration and sterilization equipment is used to introduce the material to be fermented. After fermentation in the fermentation device, the material is converted into a fermentation mixture containing enzymes and bioactive substances. The fermentation mixture exits from the first outlet of the fermentation device and enters the solid-liquid separation device through the second inlet for solid-liquid separation. After solid-liquid separation, the fermentation broth exits from the second outlet of the solid-liquid separation device, while the solid waste is temporarily stored inside the solid-liquid separation device. A steam generator produces steam, which enters the fermentation device through the air inlet to heat and sterilize the fermentation device. Further, the steam enters the second inlet of the solid-liquid separation device from the first outlet of the fermentation device to heat and sterilize the solid waste inside the solid-liquid separation device. Therefore, by setting up a steam generator, this application can sterilize not only the fermentation device but also the solid waste in the solid-liquid separation device, achieving in-situ sterilization of solid waste. This eliminates the need to remove and transfer the contaminated solid waste from the solid-liquid separation device, improving processing efficiency and reducing the biosafety risks of direct contact between personnel and contaminated waste. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a fermentation broth filtration and sterilization device provided in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 100, Fermentation broth filtration and sterilization equipment; 1, Fermentation device; 11, Receiving cavity; 12, First feed inlet; 13, First discharge outlet; 14, Exhaust outlet; 2, Solid-liquid separation device; 21, Second feed inlet; 22, Second discharge outlet; 23, Frame; 24, Filter assembly; 25, Collection box; 3, Steam generator; 31, Gas outlet; 4, First pipeline; 41, First valve; 5, Second pipeline; 51, Second valve; 6, Third pipeline; 61, Third valve; 7, Pumping device. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the treatment of fermentation broth in biotechnology and industrial production, liquid substances (including enzymes and bioactive substances) are separated from the fermentation broth using a solid-liquid separation device, while the separated solid waste (bacterial cells and insoluble culture medium) is discarded. Before disposal, the solid waste needs to be sterilized. Currently, the solid waste is manually removed from the solid-liquid separation device and then transferred to a sterilization unit for independent sterilization. This sterilization method is inefficient and increases the safety risks associated with personnel coming into contact with bacteria in the solid waste.

[0027] Based on the above issues, please refer to Figure 1This application provides a fermentation broth filtration and sterilization device 100, including a fermentation device 1, a solid-liquid separation device 2, and a steam generator 3. The fermentation device 1 has a receiving cavity 11 and an air inlet, a first feed inlet 12, and a first discharge outlet 13 connected to the receiving cavity 11. The first discharge outlet 13 is used to discharge the fermentation mixture. The solid-liquid separation device 2 has a second feed inlet 21 and a second discharge outlet 22. The second feed inlet 21 is connected to the first discharge outlet 13 and is used to introduce the fermentation mixture. The second discharge outlet 22 is used to discharge the fermentation broth. The steam generator 3 has an air outlet 31 connected to the air inlet. The steam generator 3 generates steam, which flows sequentially through the air inlet and the first discharge outlet 13 to enter the second feed inlet 21. The first feed inlet 12 of the fermentation device 1 is used to introduce the material to be fermented. After fermentation by the fermentation device 1, the material to be fermented generates a fermentation mixture containing enzymes and bioactive substances. The fermentation mixture exits from the first outlet 13 of the fermentation device 1 and enters the solid-liquid separation device 2 through the second inlet 21 for solid-liquid separation. The fermentation liquid after solid-liquid separation exits from the second outlet 22 of the solid-liquid separation device 2, while the solid waste remains temporarily inside the solid-liquid separation device 2. Steam is generated by the steam generator 3 and enters the fermentation device 1 through the air inlet to heat and sterilize it. Further, the steam enters the second inlet 21 of the solid-liquid separation device 2 from the first outlet 13 of the fermentation device 1 to heat and sterilize the solid waste inside the solid-liquid separation device 2. Therefore, by setting up the steam generator 3, this application can sterilize not only the fermentation device 1 but also the solid waste in the solid-liquid separation device 2, achieving in-situ sterilization of solid waste. This eliminates the need to remove and transfer the contaminated solid waste from the solid-liquid separation device 2, improving processing efficiency and reducing the biosafety risks of direct contact between personnel and contaminated waste.

[0028] Please see Figure 1 In some embodiments, the fermentation apparatus 1 further includes an exhaust port 14, which is connected to the receiving cavity 11 and is used to discharge exhaust gas from the receiving cavity 11. The exhaust port 14 allows excess steam to be discharged from the fermentation apparatus 1.

[0029] In optional embodiments, the fermentation apparatus 1 may be a mechanically stirred fermenter, an airlift fermenter, or a bubble column fermenter, etc. The fermentation apparatus 1 is commercially available, and its specific structure is well known to those skilled in the art; therefore, the specific structure of the fermentation apparatus 1 will not be described in detail here.

[0030] In an optional embodiment, the fermentation mixture produced by the fermentation device 1 can flow into the solid-liquid separation device 2 through the gas inside the fermentation device 1 and its own gravity. In other optional embodiments, the fermentation mixture produced by the fermentation device 1 can be pumped into the solid-liquid separation device 2 by an external power source.

[0031] Please see Figure 1 In some embodiments, the fermentation broth filtration and sterilization equipment 100 further includes a pumping device 7, which has an inlet and an outlet. The inlet is connected to a first discharge port 13, and the outlet is connected to a second feed port 21. The pumping device 7 can improve the conveying efficiency of the fermentation mixture.

[0032] In an optional embodiment, the pumping device 7 may be a centrifugal pump, a circulating pump, or the like.

[0033] Please see Figure 1 In some embodiments, the air outlet 31 is connected to the air inlet via a first pipe 4, and the first pipe 4 is equipped with a first valve 41 for opening and closing the first pipe 4; the first discharge outlet 13 is connected to the second feed inlet 21 via a second pipe 5, and the second pipe 5 is equipped with a second valve 51 for opening and closing the second pipe 5. It is understood that the first valve 41 can open and close the first pipe 4, thereby controlling whether steam enters the air inlet of the fermentation device 1 from the air outlet 31 of the steam generator 3. The second valve 51 can open and close the second pipe 5, thereby controlling whether the first discharge outlet 13 is connected to the second feed inlet 21, and further controlling whether steam enters the second feed inlet 21 of the solid-liquid separation device 2 from the first discharge outlet 13 of the fermentation device 1. By setting the first valve 41 and the second valve 51, the control over the opening and closing of steam and the steam flow rate can be improved.

[0034] In an optional embodiment, the first valve 41 may be a ball valve, a gate valve, or a globe valve, which can control the on / off state of steam and the flow rate of steam.

[0035] In an optional embodiment, the second valve 51 can be a ball valve, a gate valve, or a butterfly valve, etc., which can not only control the on / off state and flow rate of the fermentation liquid flowing out of the fermentation device 1, but also control the on / off state and flow rate of steam.

[0036] In an optional embodiment, the steam generated by the steam generator 3 first passes through the fermentation device 1 and then enters the solid-liquid separation device 2 to sterilize the solid waste inside. In other optional embodiments, the steam generated by the steam generator 3 can directly enter the solid-liquid separation device 2.

[0037] Please see Figure 1In some embodiments, the first pipe 4 is connected to the second pipe 5 via a third pipe 6. One end of the third pipe 6 is located between the outlet 31 and the first valve 41, and the other end is located between the second valve 51 and the second inlet 21. Connecting the first pipe 4 and the second pipe 5 via the third pipe 6 allows the steam generated by the steam generator 3 to be directly introduced into the solid-liquid separation device 2. Specifically, in an optional embodiment, the first valve 41 and the second valve 51 are closed. The steam generated by the steam generator 3 flows from the outlet 31 through the first pipe 4, then into the third pipe 6, and finally into the second pipe 5, until it enters the second inlet 21 of the steam generator 3 to sterilize the solid waste from the steam generator 3. Alternatively, in other optional embodiments, both the first valve 41 and the second valve 51 are open. A portion of the steam enters the fermentation device 1 through the first pipe 4 to heat and sterilize the fermentation device 1, and then enters the solid-liquid separation device 2 through the second pipe 5 for further heating and sterilization. The remaining portion of the steam directly enters the solid-liquid separation device 2 through the first pipe 4, the third pipe 6, and the second pipe 5. Therefore, the steam generated by the steam generator 3 can enter the solid-liquid separation device 2 through two flow paths at the same time, which can improve the sterilization efficiency of solid waste.

[0038] Please see Figure 1 In some embodiments, the first pipe 4 is further provided with a third valve 61 for controlling the opening and closing of the first channel. The third valve 61 is located between the gas outlet 31 and the third pipe 6. The third valve 61 can directly control the flow of steam from the steam generator 3, further improving the control effect on the opening and closing of steam and the flow rate.

[0039] In an optional embodiment, the third valve 61 may be a ball valve, a gate valve, or a globe valve, etc.

[0040] The specific structure of solid-liquid separation device 2 will be described below.

[0041] In some embodiments, the solid-liquid separation device 2 further includes a third discharge port for discharging solid waste. After the solid waste is sterilized by steam heating, it can be discharged from the third discharge port.

[0042] In an optional embodiment, the solid-liquid separation device 2 may be a plate and frame filter press, a centrifugal filter, or a membrane filter, etc.

[0043] Please see Figure 1Taking a plate and frame filter press as an example, the structure of the solid-liquid separation device 2 provided in this application embodiment will be specifically described. In some embodiments, the solid-liquid separation device 2 includes a frame 23, filter components 24, and a pressing device. The filter components 24 include multiple sets arranged sequentially along the length of the frame 23, and each set of filter components 24 is provided with a through second inlet 21 and a second outlet 22. The pressing device is located at the end of the multiple sets of filter components 24 along the length of the frame 23. The pressing device is used to press all the filter components 24 so that the second inlets 21 of each filter component 24 are interconnected to form a feed channel, and the second outlets 22 of each filter component 24 are interconnected to form a discharge channel. The frame 23 is usually made of metal (such as steel) to provide a solid mounting base for the filter components 24 and the pressing device, ensuring that the solid-liquid separation device 2 does not deform or shift under high pressure conditions. The fermentation mixture enters through the second inlet 21 at one end of the frame 23, and is then distributed to each filter assembly 24 via its second inlet 21, achieving uniform liquid distribution. Each filter assembly 24 filters the fermentation mixture, and the filtered fermentation liquid flows out from the second outlet 22 of each filter assembly 24 and then flows out uniformly from the second outlet 22 at one end of the frame 23. The filtered solid waste remains inside the filter assembly 24. It is understood that steam can also enter through the second inlet 21 of each filter assembly 24 to heat and sterilize the remaining solid waste inside the filter assembly 24. Excess steam exits through the second outlet 22 of each filter assembly 24. The number of filter assemblies 24 can be set differently according to the amount of fermentation mixture, which can improve filtration efficiency.

[0044] In an optional embodiment, the clamping device may be a hydraulic cylinder or a lead screw motor, which can apply axial pressure to all filter components 24, so that multiple filter components 24 are tightly fitted together to form a sealed filter chamber, preventing the fermentation mixture from leaking out from the gaps between the filter components 24.

[0045] Please see Figure 1In some embodiments, each filter assembly 24 includes a filter element and a filter frame. The filter frame has a through-hole groove, and the filter element is fitted into the through-hole groove. The filter element has a second feed port 21 extending through the length of the frame 23, and a second discharge port 22 extending through the length of the frame 23. It is understood that the filter element can filter the fermentation mixture, and the filter frame is used to support the filter element. The pressing device applies axial pressure along the length of the frame 23 to the filter frames, causing each filter frame to fit tightly together to form a sealed filter chamber. Multiple filter elements filter and separate the fermentation mixture within the filter chamber. The fermentation mixture exiting the first discharge port 13 of the fermentation device 1 enters through the second feed port 21 of one filter element at one end of the frame 23, and then sequentially enters the second feed port 21 of each filter element, spreading the fermentation mixture across each filter element. The filter elements filter the fermentation mixture, and the filtered fermentation liquid exits through the second discharge port 22 of the filter frame. Finally, the mixture merges and exits through the second discharge port 22 of one filter frame at the other end of the frame 23. The filtered solid waste remains on each filter element. Understandably, steam can also enter from the second inlet 21 of each filter element to heat and sterilize the remaining solid waste. Excess steam exits from the second outlet 22 of each filter frame.

[0046] In an optional embodiment, the filter element may be a filter cloth, a filter membrane, or a filter plate, etc.

[0047] In an optional embodiment, the second feed inlet 21 is located at the center of each filter element, which can improve the spreading efficiency of the fermentation mixture.

[0048] In an optional embodiment, the second discharge port 22 is provided at the top or bottom of each filter frame, so that the fermentation mixture is fully filtered on the filter element, thereby increasing the filtration area of ​​the filter element.

[0049] Understandably, when the solid-liquid separation device 2 is a plate and frame filter press, the pressing device loosens the filter frame of the filter assembly 24, and the filter frame can be peeled off to move away from the adjacent filter frame. The third discharge port of the solid-liquid separation device 2 is formed between the two adjacent and spaced filter frames, and the solid waste attached to the filter element can fall out from the third discharge port.

[0050] Please see Figure 1 In an optional embodiment, the solid-liquid separation device 2 further includes a collection box 25, which is located at the bottom of the filter assembly 24 and is used to collect solid waste falling from the filter assembly 24.

[0051] In some embodiments, the steam generator 3 includes a housing and a heating assembly. The housing has a accommodating cavity and an outlet 31 and a water inlet communicating with the accommodating cavity. The heating assembly is disposed inside the accommodating cavity. Water is introduced into the water inlet, and the heating assembly heats the water to form steam, which is then discharged from the outlet 31.

[0052] In optional embodiments, the heating component may be an electric heating element, a gas burner, or an electromagnetic heating device, etc.

[0053] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0054] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fermentation broth filtration sterilization apparatus, characterized by, include: The fermentation device is provided with a receiving cavity and an air inlet, a first feed inlet and a first discharge outlet communicating with the receiving cavity, wherein the first discharge outlet is used to discharge the fermentation mixture; A solid-liquid separation device is provided with a second inlet and a second outlet, the second inlet being connected to the first outlet, the second inlet being used to introduce the fermentation mixture, and the second outlet being used to discharge the fermentation broth; and A steam generator is provided with an outlet connected to an inlet. The steam generator is used to generate steam, which can flow sequentially through the inlet and the first outlet to enter the second inlet.

2. The fermentation broth filtration and sterilization equipment according to claim 1, characterized in that, The air outlet is connected to the air inlet through a first pipe, and the first pipe is provided with a first valve for switching the first pipe on and off; the first discharge outlet is connected to the second feed inlet through a second pipe, and the second pipe is provided with a second valve for switching the second pipe on and off.

3. The fermentation broth filter sterilization apparatus of claim 2, wherein, The first pipe is connected to the second pipe through a third pipe. One end of the third pipe is located between the air outlet and the first valve, and the other end of the third pipe is located between the second valve and the second feed inlet.

4. The fermentation broth filter sterilization apparatus of claim 3, wherein, The first pipe is also provided with a third valve for switching the first pipe on and off, and the third valve is located between the air outlet and the third pipe.

5. The fermentation broth filtration and sterilization equipment according to claim 1, characterized in that, The solid-liquid separation device includes: frame; The filter assembly includes multiple sets arranged sequentially along the length of the frame, and each set of filter assemblies is provided with a through second inlet and a through second outlet; A clamping device is provided at the end of the plurality of filter components along the length of the frame. The clamping device is used to clamp all the filter components so that the second inlet of each filter component is interconnected to form a feeding channel, and the second outlet of each filter component is interconnected to form a discharge channel.

6. The fermentation broth filter sterilization apparatus of claim 5, wherein, Each of the filter components includes a filter element and a filter frame. The filter frame has a through-hole groove, the filter element is fitted into the through-hole groove, the filter element has a second feed port through-hole along the length of the frame, and the filter element has a second discharge port through-hole along the length of the frame.

7. The fermentation broth filter sterilization apparatus as claimed in claim 1, wherein, The steam generator includes a housing and a heating assembly. The housing has a accommodating cavity and an air outlet and a water inlet communicating with the accommodating cavity. The heating assembly is located inside the accommodating cavity.

8. The fermentation broth filter sterilization apparatus of any one of claims 1 to 7, wherein, The fermentation broth filtration and sterilization equipment also includes a pumping device, which has an inlet and an outlet. The inlet is connected to the first discharge port, and the outlet is connected to the second feed port.

9. The fermentation broth filtration and sterilization equipment according to any one of claims 1 to 7, characterized in that, The solid-liquid separation device also includes a third discharge port, which is used to discharge solid waste.

10. The fermentation broth filter sterilization apparatus of any one of claims 1 to 7, wherein, The fermentation device also includes an exhaust port, which is connected to the receiving cavity and is used to discharge the exhaust gas in the receiving cavity.

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