Aseptic continuous feeding device for fermentation

Abstract

The application discloses a sterilized continuous feeding device for fermentation and relates to the technical field of fermentation equipment, which comprises a fermentation tank and a feeding tank, a feeding pipeline is arranged between the fermentation tank and the feeding tank, the feeding pipeline comprises a straight pipe and at least one elbow, and an anti-abrasion assembly is arranged between the feeding end of the elbow and the straight pipe. Through the arrangement of the anti-abrasion assembly, a spiral part and a hot cleaning system, when feeding, the spiral part is driven to rotate when the material passes through the anti-abrasion assembly, the spiral part makes the material turn in advance when entering the elbow, reduces the direct impact angle when entering the elbow, and when the material drives the spiral part to rotate, part of the impact kinetic energy can be converted into rotary mechanical energy, the energy transferred to the pipe wall is reduced, and the effect of reducing the abrasion of the outer bending side of the elbow is achieved.

Description

Technical Field

[0001] This invention relates to the field of fermentation equipment technology, and in particular to a sterile continuous feeding device for fermentation. Background Technology

[0002] Fermentation is a biochemical process in which microorganisms (such as bacteria, yeast, and mold) or cells convert organic substrates into energy and specific metabolites through metabolic activities under anaerobic or aerobic conditions. Microbial fermentation is widely used in the production of food additives due to its natural, safe, and environmentally friendly advantages.

[0003] During fermentation, substrate concentration needs to be controlled through feeding to mitigate inhibition, and carbon and nitrogen sources need to be added during the microbial growth stage to promote rapid cell proliferation. Existing feeding methods are mainly divided into continuous feeding and pin-type feeding. The main difference lies in the following: continuous feeding achieves rapid and precise supply through integrated equipment, such as a feeding tank connected in parallel with a steam pipeline and then connected to the fermenter; while pin-type feeding mainly supplements trace elements and generally does not require a dedicated feeding tank connected to the fermenter. However, both feeding methods require aseptic control during feeding.

[0004] Chinese Patent Application No. 202320789297.9 discloses a novel material feeding device for fermenters. This invention can sterilize dead corners in the feeding pipeline through the layout of valves and the pipeline sterilization method. The feeding pipeline can also be repeatedly sterilized before feeding. Through the pneumatic diaphragm valve, it can realize both continuous, constant-speed, and quantitative feeding, as well as intermittent feeding.

[0005] Because materials are very prone to accumulating liquid and creating sterilization dead zones at bends when flowing through pipes, the existing improvement measure is to design bends with a large arc radius that is at least three times the pipe diameter. Although this method can reduce the contamination rate of materials to some extent, when materials flow through bends, they are subjected to centrifugal force, and solid particles or high-viscosity liquids will directly scour and wear the outer side of the bend, thus forming adhesion accumulation points.

[0006] To address these issues, the present invention proposes an aseptic continuous feeding device for fermentation. Summary of the Invention

[0007] The purpose of this invention is to provide an aseptic continuous feeding device for fermentation, so as to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an aseptic continuous feeding device for fermentation, comprising a fermentation tank and a feeding tank, wherein a feeding pipe is provided between the fermentation tank and the feeding tank, the feeding pipe comprising a straight pipe and at least one elbow, and an anti-wear component is provided between the feed end of the elbow and the straight pipe;

[0009] The wear-resistant component includes a fixing ring that is fixedly connected to the straight pipe and the elbow. The inner diameter of the fixing ring is the same as the inner diameter of the straight pipe and the elbow. A spiral component is provided inside the fixing ring. When the material passes through the spiral component, the spiral component can reduce its flow rate and cause the material to rotate.

[0010] Preferably, the spiral component includes a connecting ring coaxially arranged with the fixed ring, and a plurality of circumferentially distributed spiral blades are fixedly connected to the inner side of the connecting ring.

[0011] Preferably, the connecting ring is rotatably connected to the fixed ring, and when the material passes through the spiral component, the connecting ring can rotate under the drive of the spiral blades.

[0012] Preferably, the bottom of the feeding tank is provided with a multi-branch pipe, and each branch pipe of the multi-branch pipe is provided with an air inlet valve, a liquid outlet valve and a liquid inlet valve. The air inlet valve is connected to a steam sterilization system through a pipe, the liquid outlet valve is used to discharge condensate, and the liquid inlet valve is connected to a heat cleaning system through a pipe.

[0013] Preferably, the anti-wear assembly further includes a sterilization mechanism that cooperates with the spiral component. The sterilization mechanism includes a sterilization hole that penetrates through the connecting ring. Multiple sterilization holes are provided and are respectively located on one side of the spiral blade. A cavity is formed between the fixing ring and the connecting ring. At least one partition is provided in the cavity, which divides the cavity into a first air inlet cavity and a second air inlet cavity. A first air inlet and a second air inlet are provided on the circumferential side of the fixing ring, which communicate with the first air inlet cavity and the second air inlet cavity. Both the first air inlet and the second air inlet are connected to the steam sterilization system and the thermal cleaning system through pipelines.

[0014] Preferably, the partition includes two symmetrically arranged baffles, and the mating surface between the baffles and the connecting ring is an arc surface.

[0015] Preferably, the connecting ring has multiple grooves that match the sterilization holes. A movable plate is slidably connected in the grooves. The movable plate has through holes that match the sterilization holes, and in the initial state, the through holes and sterilization holes are staggered. An elastic element is provided between one end of the movable plate and the groove. An annular groove is provided on the side of the connecting ring away from the elastic element. An annular plate fixedly connected to the fixed ring is provided in the annular groove. A powerful electromagnet matching the first air inlet chamber is provided on the annular plate. The movable plate is made of ferromagnetic material. When the powerful electromagnet is energized, the movable plate slides to one side under the magnetic attraction, overcoming the elastic force of the elastic element, so that the through holes and sterilization holes are connected.

[0016] Preferably, the anti-wear component is provided with intermittent sterilization mechanisms on both sides along the material movement direction. The intermittent sterilization mechanisms are respectively connected to the first air inlet chamber and the second air inlet chamber. The steam in the first air inlet chamber and the second air inlet chamber can enter the mating gap between the connecting ring and the fixed ring through the intermittent sterilization mechanisms.

[0017] Preferably, the intermittent sterilization mechanism includes a flow channel inside the fixed ring, and a plurality of circumferentially distributed air inlets are provided on the side of the flow channel near the first air inlet chamber and the second air inlet chamber, and a plurality of oblique holes communicating with the flow channel are provided on the side wall of the connecting ring.

[0018] Preferably, the thermal cleaning system includes a hot water tank connected to the inlet valve via a pipe, a heating unit is installed inside the hot water tank, and a water pump is installed between the hot water tank and the inlet valve.

[0019] The beneficial effects of this invention are:

[0020] This invention, through the design of anti-wear components, a spiral component, and a thermal cleaning system, allows the spiral component to rotate as the material passes through the anti-wear components during feeding. The spiral component causes the material to turn in advance when entering the bend, reducing the direct impact angle. Furthermore, the material's rotation of the spiral component converts some of the impact kinetic energy into rotational mechanical energy, reducing the energy transmitted to the pipe wall and thus reducing wear on the outer bend side of the bend. After feeding is completed, the steam sterilization system and thermal cleaning system sterilize the spiral component through the first air inlet chamber and sterilization holes. During cleaning, only sterilization holes within the first air inlet chamber are open, using the medium pressure within the first air inlet chamber to impact the sterilization holes, preventing incomplete cleaning of some sterilization holes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the feeding tank and fermentation tank of the present invention.

[0023] Figure 3 This is a cross-sectional view of the wear-resistant component and the feeding pipe of the present invention.

[0024] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0025] Figure 5 This is a three-dimensional structural diagram of the anti-wear component of the present invention.

[0026] Figure 6 This is a cross-sectional schematic diagram of the anti-wear component of the present invention.

[0027] Figure 7 This is a cross-sectional schematic diagram of the first and second air intake chambers of the present invention.

[0028] Figure 8 This is a schematic diagram of the connecting ring and sterilization mechanism of the present invention.

[0029] The attached figures are labeled as follows:

[0030] 1. Fermentation tank;

[0031] 2. Feed tank;

[0032] 3. Feeding pipe; 31. Straight pipe; 32. Elbow; 33. Multi-branch pipe; 34. Air inlet valve; 35. Liquid outlet valve; 36. Liquid inlet valve; 37. Discharge valve; 38. Isolation valve;

[0033] 4. Anti-wear components; 41. Retaining ring; 42. Spiral component; 421. Connecting ring; 4211. Annular groove; 422. Spiral blade;

[0034] 5. Sterilization mechanism; 51. Sterilization hole; 52. Partition; 521. Baffle; 53. First air inlet chamber; 54. Second air inlet chamber; 55. First air inlet; 56. Second air inlet; 57. Slide groove; 58. Movable plate; 581. Through hole; 582. Elastic element;

[0035] 6. Powerful electromagnet;

[0036] 7. Intermittent sterilization mechanism; 71. Flow channel; 72. Air inlet; 73. Angled hole. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0038] In actual production, as materials flow through pipelines, liquid accumulation and sterilization dead zones easily form at bends. Existing improvements involve designing bends with a large radius of curvature at least three times the pipe diameter. While this method can reduce the contamination rate of materials to some extent, the centrifugal force acting on the material as it flows through the bend causes solid particles or high-viscosity liquids to directly erode and wear the outer side of the bend, leading to the formation of adhesion and accumulation points. This embodiment is invented to solve the above problems.

[0039] Please see Figures 1 to 8 As shown, an embodiment of the present invention provides an aseptic continuous feeding device for fermentation, comprising a fermentation tank 1 and a feeding tank 2. A feeding pipe 3 is provided between the fermentation tank 1 and the feeding tank 2. The feeding pipe 3 includes a straight pipe 31 and at least one elbow 32. An anti-wear component 4 is provided between the feed end of the elbow 32 and the straight pipe 31.

[0040] The anti-wear component 4 includes a fixing ring 41 that is fixedly connected to the straight pipe 31 and the elbow 32. The inner diameter of the fixing ring 41 is the same as the inner diameter of the straight pipe 31 and the elbow 32. A spiral component 42 is provided inside the fixing ring 41. When the material passes through the spiral component 42, the spiral component 42 can reduce its flow rate and make the material rotate.

[0041] Please see Figure 3 and Figure 5 As shown, the spiral component 42 includes a connecting ring 421 coaxially arranged with the fixing ring 41, and a plurality of circumferentially distributed spiral blades 422 are fixedly connected to the inner side of the connecting ring 421.

[0042] In addition to the features of the spiral blade 422, the side of the spiral blade 422 near the material inlet end is arc-shaped, which can reduce wear.

[0043] In this embodiment, the connecting ring 421 is rotatably connected to the fixed ring 41. When the material passes through the spiral component 42, the connecting ring 421 can rotate under the drive of the spiral blade 422.

[0044] In this embodiment, the anti-wear component 4 is fixed to the straight pipe 31 and the elbow 32 by seamless welding. The fixing ring 41 is coaxially provided with positioning rings on both the front and rear sides along its axis. The positioning rings are fixed to the straight pipe 31 and the elbow 32. During installation, the positioning rings are made coaxial with the straight pipe 31 or the elbow 32 by pipe clamps. After fixing, welding can be performed. For the specific process, please refer to the seamless welding process of the straight pipe 31 and the elbow 32.

[0045] Please see Figure 1 and Figure 2As shown, the bottom of the feed tank 2 is provided with a multi-branch pipe 33. Each branch pipe of the multi-branch pipe 33 is provided with an air inlet valve 34, a liquid outlet valve 35 and a liquid inlet valve 36. The air inlet valve 34 is connected to a steam sterilization system through a pipe. The liquid outlet valve 35 is used to discharge condensate. The liquid inlet valve 36 is connected to a heat cleaning system through a pipe.

[0046] In this embodiment, the thermal cleaning system includes a hot water tank connected to the liquid inlet valve 36 via a pipeline. The hot water tank is equipped with a heating unit, and a water pump is installed between the hot water tank and the liquid inlet valve 36. After the feeding or fermentation is completed, the thermal cleaning system circulates the hot water from the hot water tank into the feeding tank 2, the fermentation tank 1, and related pipelines. During the flow of hot water, the remaining materials are carried away and subjected to preliminary thermal disinfection.

[0047] The steam sterilization system includes a steam generator, heat exchanger, spiral thermostatic pipeline, and pressure protection valve. It uses high-temperature saturated steam to sterilize the feed tank 2, fermentation tank 1, and related pipelines to prevent material contamination during feeding. The steam sterilization system is existing technology and will not be described in detail here.

[0048] It should be further noted that a discharge valve 37 is installed on the branch pipe directly connected to the feed tank 2 via the multi-branch pipe 33. When feeding, the discharge valve 37 needs to be opened. In addition, an isolation valve 38 is installed on the feed pipe 3 near the feed tank 2. When the feed tank 2 needs to be sterilized separately, the isolation valve 38 can be closed to isolate the feed tank 2 from the subsequent feed pipe 3.

[0049] In another embodiment, the spiral component 42 can be externally connected to a drive component, and the spiral component 42 can be driven to rotate by a motor or electric motor.

[0050] When feeding the fermenter 1, the feed valve 37 and isolation valve 38 are opened first. The material in the feed tank 2 is sent into the fermenter 1 by pressure difference drive or pump drive. When the material passes through the anti-wear component 4, the screw 42 rotates under the push of the material and the material rotates with it. This causes the material to turn in advance when entering the bend 32, reducing the direct impact angle of entering the bend 32, thereby reducing the impact force on the outer bend side. Combined with flow rate control, the wear on the outer bend side can be greatly reduced.

[0051] In summary, through the design of the anti-wear component 4, the spiral component 42, and the thermal cleaning system, when the material is being fed, the material passing through the anti-wear component 4 will drive the spiral component 42 to rotate. The spiral component 42 causes the material to turn in advance when entering the elbow 32, reducing the direct impact angle when entering the elbow 32. Furthermore, when the material pushes the spiral component 42 to rotate, it can convert some of the impact kinetic energy into rotational mechanical energy, reducing the energy transmitted to the pipe wall, thereby achieving the effect of reducing wear on the outer bend side of the elbow 32. Example 2

[0052] In practical use, it was found that although the spiral component 42 can rotate the material, some material also adheres to it. If sterilization is not strengthened during subsequent cleaning, new contamination points can easily form, which will actually impair the fermentation effect. Further improvements were made based on the above embodiments.

[0053] Please see Figures 3 to 6 As shown, the anti-wear component 4 also includes a sterilization mechanism 5 that cooperates with the spiral component 42. The sterilization mechanism 5 includes a sterilization hole 51 that is opened through the connecting ring 421. Multiple sterilization holes 51 are provided and are respectively located on one side of the spiral blade 422. A cavity is formed between the fixing ring 41 and the connecting ring 421. At least one partition 52 is provided in the cavity. The partition 52 divides the cavity into a first air inlet chamber 53 and a second air inlet chamber 54. A first air inlet 55 and a second air inlet 56 that communicate with the first air inlet chamber 53 and the second air inlet chamber 54 are provided on the circumferential side of the fixing ring 41. The first air inlet 55 and the second air inlet 56 are both connected to the steam sterilization system and the heat cleaning system through pipes.

[0054] In this embodiment, the partition 52 includes two symmetrically arranged baffles 521, and the mating surface between the baffles 521 and the connecting ring 421 is an arc surface.

[0055] Please see Figure 4 and Figure 8 As shown, the connecting ring 421 has multiple grooves 57 that match the sterilization holes 51. A movable plate 58 is slidably connected in the grooves 57. The movable plate 58 has through holes 581 that match the sterilization holes 51. In the initial state, the through holes 581 and the sterilization holes 51 are staggered. An elastic element 582 is provided between one end of the movable plate 58 and the groove 57. An annular groove 4211 is provided on the side of the connecting ring 421 away from the elastic element 582. An annular plate fixedly connected to the fixed ring 41 is provided in the annular groove 4211. A powerful electromagnet 6 that matches the first air inlet chamber 53 is provided on the annular plate. The movable plate 58 is made of ferromagnetic material. After the powerful electromagnet 6 is energized, the movable plate 58 slides to one side under the magnetic attraction, overcoming the elastic force of the elastic element 582, so that the through holes 581 and the sterilization holes 51 are connected.

[0056] Based on the above embodiments, after the feeding is completed, the inlet valve 36 is opened and the outlet valve 35, air inlet valve 34 and discharge valve 37 are closed. The thermal cleaning system will clean the feeding tank 2, fermentation tank 1 and related pipelines, clean the remaining materials and discharge them through the discharge port at the bottom of fermentation tank 1. Then, the inlet valve 36 is closed and the outlet valve 35 and air inlet valve 34 are opened. The outlet valve 35 is in a slightly open state to discharge condensate. The steam sterilization system introduces high-temperature steam into the feeding pipeline 3 through the air inlet valve 34 to sterilize the feeding pipeline 3.

[0057] Meanwhile, in order to perform deep sterilization on the spiral component 42, the thermal cleaning system and the steam sterilization system enter the first air inlet 53 and the second air inlet 54 respectively through the first air inlet 55 and the second air inlet 56, and clean the spiral component 42 with hot water or steam. Since the thermal cleaning system and the steam sterilization system have the same steps, only the steam sterilization system will be described in this embodiment.

[0058] During steam sterilization, the powerful electromagnet 6 is energized. When the connecting plate rotates, only when the corresponding movable plate 58 rotates into the first air inlet chamber 53 will the movable plate 58 slide to one side under the action of the powerful electromagnet 6, and the corresponding through hole 581 connects with the sterilization hole 51. The steam in the first air inlet chamber 53 is quickly ejected through the sterilization hole 51. The ejected gas directly acts on the spiral blades 422 adjacent to the sterilization hole 51. Furthermore, the gas pressure inside the first air inlet chamber 53 can be adjusted by controlling the air intake. Appropriately increasing the pressure is more conducive to the sterilization effect of the spiral component 42.

[0059] In addition, the purpose of setting the first air inlet chamber 53 is to take into account that when replenishing materials, some materials will remain in the sterilization hole 51. If multiple sterilization holes 51 are connected to the same chamber, it is easy to cause the materials in the sterilization hole 51 to be not thoroughly cleaned. By using the partition 52 to isolate the cavity and the action of the powerful electromagnet 6, the high temperature gas in the first air inlet chamber 53 can improve the sterilization effect on the sterilization hole 51.

[0060] In summary, through the installation of the movable plate 58, the chute 57, and the powerful electromagnet 6, after the material replenishment is completed, the steam sterilization system and the thermal cleaning system can sterilize the spiral component 42 through the first air inlet chamber 53 and the sterilization hole 51. During the cleaning process, only the sterilization hole 51 within the range of the first air inlet chamber 53 will be open. The medium pressure in the first air inlet chamber 53 will impact the sterilization hole 51 to prevent the material in some sterilization holes 51 from being incompletely cleaned. Example 3

[0061] Considering that a small gap exists between the connecting ring 421 and the fixed ring 41 when they rotate, some material can easily enter this gap when passing through the connecting ring 421. If it is not sterilized separately, new contamination points can easily form. Further improvements are made based on the above embodiments.

[0062] Please see Figure 4As shown, the anti-wear component 4 is provided with intermittent sterilization mechanisms 7 on both sides along the material movement direction. The intermittent sterilization mechanisms 7 are connected to the first air inlet chamber 53 and the second air inlet chamber 54 respectively. The steam in the first air inlet chamber 53 and the second air inlet chamber 54 can enter the mating gap between the connecting ring 421 and the fixed ring 41 through the intermittent sterilization mechanism 7, thereby sterilizing it with steam.

[0063] The intermittent sterilization mechanism 7 includes a flow channel 71 inside the fixed ring 41. The flow channel 71 has multiple circumferentially distributed air inlets 72 on the side near the first air inlet chamber 53 and the second air inlet chamber 54. The side wall of the connecting ring 421 has multiple oblique holes 73 that communicate with the flow channel 71.

[0064] During use, when the spiral component 42 is sterilized, some of the gas in the first air inlet chamber 53 and the gas in the second air inlet chamber 54 enter the flow channel 71 through the air inlet 72 and are ejected from the inclined hole 73 through the flow channel 71. It should be noted that in this embodiment, there is an angle between the inclined hole 73 and the gap. When the medium is ejected through the inclined hole 73, the medium can clean and sterilize the material in the gap.

[0065] In summary, by using the air inlet 72, flow channel 71, and oblique hole 73, the medium in the first air inlet chamber 53 and the second air inlet chamber 54 is introduced into the gap between the connecting ring 421 and the fixing ring 41, so that the high-temperature medium cleans and sterilizes the gap, avoids the emergence of new contamination points, and improves the fermentation effect of microorganisms.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sterilization continuous feeding device for fermentation, comprising a fermentation tank and a feeding tank, characterized in that, The feed pipe is provided between the fermenter and the feed tank, and comprises a straight pipe and at least one elbow, and an anti-abrasion assembly is arranged between the feed inlet end of the elbow and the straight pipe; The anti-abrasion assembly comprises a fixing ring fixedly connected with the straight pipe and the elbow, the inner diameter of the fixing ring is consistent with the inner diameter of the straight pipe and the elbow, a spiral element is arranged in the fixing ring, and the spiral element can reduce the flow rate of the material and make the material rotate when the material passes through the spiral element; The spiral element comprises a connecting ring coaxially arranged with the fixing ring, and a plurality of helical blades are fixedly connected to the inner side surface of the connecting ring and are uniformly distributed in the circumferential direction; The connecting ring is rotationally connected with the fixing ring, and the connecting ring can rotate under the driving of the helical blades when the material passes through the spiral element; The anti-abrasion assembly further comprises a sterilization mechanism matched with the spiral element, the sterilization mechanism comprises sterilization holes penetratingly arranged on the connecting ring, the sterilization holes are arranged in multiple numbers and are respectively located on one side of the helical blades, a cavity is formed between the fixing ring and the connecting ring, at least one partition element is arranged in the cavity, the cavity is partitioned into a first air inlet cavity and a second air inlet cavity by the partition element, a first air inlet and a second air inlet are arranged on the circumferential side of the fixing ring and are in communication with the first air inlet cavity and the second air inlet cavity, and the first air inlet and the second air inlet are connected with a steam sterilization system and a hot cleaning system through pipelines; A plurality of sliding grooves matched with the sterilization holes are arranged on the connecting ring, a movable plate is slidably connected in the sliding grooves, through holes matched with the sterilization holes are arranged on the movable plate, the through holes and the sterilization holes are arranged in a staggered manner in an initial state, an elastic element is arranged between one end of the movable plate and the sliding groove, an annular groove is arranged on the side of the connecting ring away from the elastic element, an annular plate fixedly connected with the fixing ring is arranged in the annular groove, a powerful electromagnet matched with the first air inlet cavity is arranged on the annular plate, the movable plate is made of ferromagnetic material, and the movable plate slides to one side under the magnetic attraction after overcoming the elastic force of the elastic element after the powerful electromagnet is electrified, so that the through hole is in communication with the sterilization hole; During steam sterilization, the powerful electromagnet is electrified, and only when the corresponding movable plate is rotated to the first air inlet cavity, the movable plate slides to one side under the action of the powerful electromagnet and makes the corresponding through hole in communication with the sterilization hole, the steam in the first air inlet cavity is rapidly sprayed out through the sterilization hole, the sprayed gas directly acts on the helical blades adjacent to the sterilization hole, and the gas pressure in the first air inlet cavity can be adjusted by controlling the air inlet amount, and appropriately increasing the pressure is more conducive to the sterilization effect of the spiral element.

2. A device for sterile continuous feeding of a fermentation according to claim 1, characterized in that A plurality of branch pipes are arranged on the bottom of the feed tank, an air inlet valve, a liquid outlet valve and a liquid inlet valve are respectively arranged on the branch pipes, the air inlet valve is connected with a steam sterilization system through a pipeline, the liquid outlet valve is used to discharge condensed water, and the liquid inlet valve is connected with a hot cleaning system through a pipeline.

3. A device for aseptic continuous feeding of a fermentation according to claim 1, characterized in that The partition element comprises two symmetrically arranged baffles, and the matching surface of the baffle and the connecting ring is an arc surface.

4. A device for sterile continuous feeding of a fermentation according to claim 1, characterized in that The anti-abrasion assembly is respectively provided with a gap sterilization mechanism on both sides along the material moving direction, the gap sterilization mechanisms are respectively communicated with the first air inlet cavity and the second air inlet cavity, and the steam in the first air inlet cavity and the second air inlet cavity can enter the cooperation gap between the connecting ring and the fixed ring through the gap sterilization mechanisms.

5. A device for the aseptic continuous feeding of a fermentation according to claim 4, characterized in that The gap sterilization mechanism comprises a flow channel formed in the fixed ring, a plurality of air inlet holes are formed in the side of the flow channel close to the first air inlet cavity and the second air inlet cavity in a circumferential distribution manner, and a plurality of inclined holes are formed in the side wall of the connecting ring and communicated with the flow channel.

6. A device for sterile continuous feeding of a fermentation according to claim 2, characterized in that The heat cleaning system comprises a hot water tank connected with the liquid inlet valve through a pipeline, a heating unit is arranged in the hot water tank, and a water pump is arranged between the hot water tank and the liquid inlet valve.

Images