CN216337670U - Fermentation cylinder convenient to defoaming - Google Patents

Abstract

The present application relates to the field of fermentation equipment, in particular to a fermentation tank that is convenient for defoaming. A fermenter that is convenient for defoaming comprises an inner tank body and an outer tank body, the outer tank body is provided with a water supply port and a water outlet, a gas transmission component is installed on the tank cover, and an annular ring is installed on the inner wall of the tank body facing the tank cover. the defoaming column. The application can transport sterile oxygen-enriched air into the tank through the gas delivery assembly, on the one hand, it provides oxygen to the aerobic microorganisms in the fermentation broth, and on the other hand, the bubbles on the liquid surface are blown to move toward the inner wall of the tank, and the bubbles Move to the position of the defoaming column and be punctured by the defoaming column, thus achieving the purpose of defoaming the fermentation tank and improving the fermentation efficiency.

Description

A fermenter that is easy to defoaming

technical field

The present application relates to the field of fermentation equipment, in particular to a fermentation tank that is convenient for defoaming.

Background technique

Fermentation is a process in which people use the life activities of microorganisms under aerobic or anaerobic conditions to prepare microbial cells themselves, or direct metabolites or secondary metabolites. It is mainly used in the food industry, biology, chemical industry and other fields.

Aerobic fermentation is a process in which aerobic microorganisms transform organic matter into nutrients required for the growth and reproduction of microorganisms through their own life activities and through reaction processes such as oxidation and reduction. In the process of aerobic fermentation, a large amount of sterile air needs to be introduced into the fermenter to increase the dissolved oxygen in the fermentation broth. Coupled with factors such as stirring and carbon dioxide generated by microbial metabolism, a large amount of foam will be generated. Natural oils are often added to the fermenter. , polyether, silicone and other chemical defoamer to eliminate the effect of foam on the fermentation process.

Aiming at the above-mentioned fermenter, the inventor found that the quality of the fermented liquid will be affected when the defoamer is added in a large amount. In view of the above-mentioned problems, it is urgent to improve the design of the existing fermenter, and achieve the purpose of defoaming through the improvement of the fermenter. , making the microbial fermentation process more efficient and improving the fermentation efficiency.

Utility model content

In order to improve the defoaming problem of a fermentor during aerobic fermentation, the present application provides a fermentor that is convenient for defoaming.

The present application provides a fermenter that facilitates defoaming, and adopts the following technical solution: a fermenter that facilitates defoaming, comprising a tank body and a tank cover, the tank cover is provided on the tank body, and the tank A rotating stirring paddle is installed on the body and the tank cover, a gas delivery assembly is installed on the tank cover, and the gas delivery component is located above the liquid level of the fermentation liquid, and the tank body is set on the inner wall of the tank cover. There is an annular defoaming column, and the defoaming column is prismatic on the side facing the axis of the tank body.

By adopting the above technical scheme, the fermented liquid is placed in the fermentation tank, and the rotating stirring paddle rotates so that the fermented liquid is fully mixed and fermented. Since the fermentation of aerobic microorganisms produces gases such as carbon dioxide, a large number of air bubbles are generated in the tank, and the treated air enters the tank through the gas delivery component to provide the microorganisms with the oxygen needed for survival and reproduction, while blowing the bubbles to the tank The inner wall of the body moves in the direction, when the bubbles contact the defoaming column, the bubbles burst, so as to achieve the purpose of defoaming, making the microbial fermentation process more effective and improving the fermentation efficiency.

Optionally, the air delivery assembly includes an air filter assembly, the tank cover is provided with a number of through holes, the air filter assembly is installed on the side of the tank cover away from the tank body and can cover the tank cover. vias.

By adopting the above technical solution, the air can be purified into aseptic oxygen-enriched air through the air filter assembly, and the air can enter the tank through the through hole. Since the air filter assembly can cover the through hole, the air transmission is more efficient.

Optionally, a vent pipe is installed on the side of the tank cover facing the tank body, one end of the vent pipe connected to the tank cover is covered with all through holes, and the other end of the vent pipe faces the inside of the tank body. .

By adopting the above technical solution, the arrangement of the ventilation pipe enables the air entering the tank to directly reach the surface of the fermentation liquid to provide oxygen for the survival and reproduction of aerobic microorganisms, and can more quickly blow the air bubbles on the surface of the fermentation liquid to the inner wall of the tank. , the bubbles can be punctured by the defoaming column on the inner wall more quickly to achieve the effect of defoaming.

Optionally, one end of the vent pipe away from the can cover extends to form a trumpet-shaped opening.

By adopting the above technical solution, the vent pipe is far away from the tank cover, and extends toward the end of the fermentation liquid surface to form a horn-shaped opening, which can better blow the air bubbles on the liquid surface, and the bell mouth can effectively guide the blown air. direction, so that the bubbles move faster towards the inner wall of the tank.

Optionally, the tank cover is provided with a water inlet, a material inlet, a sampling port, a temperature control port and several air outlets.

By adopting the above technical scheme, the tank cover is provided with a water inlet, a material inlet, a sampling port, a temperature control port and several air outlets. The water inlet can pass into the water required for fermentation; the feed inlet can make the organic matter that needs to be fermented enter the fermentation tank; the sampling port and the temperature control port are respectively connected with the sampler and the temperature measuring component, and the fermentation liquid in the fermentation can be carried out in real time. Detection; the setting of the air outlet can make the carbon dioxide and other gases produced by the fermentation to be discharged in time.

Optionally, the tank body includes an inner tank body and an outer tank body, the outer tank body is provided with a water supply port and a water outlet in a vertical direction, and a valve is installed on the water supply port and the water outlet.

By adopting the above technical scheme, the space formed between the outer tank and the inner tank can be filled with condensed water, the condensed water enters from the water supply port, and is discharged from the water outlet to realize the circulation of the condensed water, thereby reducing the temperature of the fermentation broth.

Optionally, a drive device for driving a rotating stirring paddle is installed outside the tank, and the rotating stirring paddle includes a vertical rotating shaft and a screw shaft mounted on the rotating shaft.

By adopting the above technical solution, the rotating stirring paddle includes a vertical rotating shaft and a screw shaft installed on the rotating shaft, and the driving device drives the rotating shaft and the screw shaft to rotate, and can stir the fermentation liquid from multiple directions, so that the fermentation liquid is stirring more evenly.

Optionally, several blades are installed on both the rotating shaft and the screw shaft.

By adopting the above technical scheme, the blades are also rotating while the rotating shaft and the screw shaft are rotating, and the blades can effectively exert force on the fermentation liquid, so that the stirring of the fermentation liquid by the rotating stirring paddle is more uniform.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. a fermented liquid in a fermenter that is convenient for defoaming produces a large amount of air bubbles in the fermentation process, and the gas delivery assembly imports sterile oxygen-enriched air into the tank to blow while providing oxygen for the fermented aerobic microorganisms The bubbles on the liquid surface move to the inner wall of the tank, and the bubbles are punctured by the defoaming column on the inner wall of the tank, which achieves the purpose of defoaming the fermentation tank.

2. The driving device drives the rotating shaft and the screw shaft to rotate, and the rotating shaft and the screw shaft exert force on the fermentation liquid from multiple directions, so that the mixing of the fermentation liquid is more uniform.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a fermenter that facilitates defoaming according to an embodiment of the present application.

FIG. 2 is a partial cross-sectional view of a fermenter that facilitates defoaming in an embodiment of the present application.

Description of reference numbers:

1. Support seat; 11. Fixed plate; 12. Drive motor; 2. Tank body; 21. Inner tank body; 211, Defoaming column; 212, Defoaming edge; , water outlet; 223, rotating shaft; 224, screw shaft; 225, blade; 3, tank cover; 31, through hole; 32, protective pipe; 33, air filter assembly; 34, ventilation pipe; 35, water inlet; 36 , feeding port; 37, sampling port; 38, temperature control port; 39, air outlet.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings.

The embodiment of the present application discloses a fermentation tank that is convenient for defoaming.

As shown in FIG. 1 , a fermentation tank that facilitates defoaming includes a support base 1 , a tank body 2 and a tank cover 3 . The tank body 2 is provided with an integrally formed inner tank body 21 and an outer tank body 22. The space formed by the inner tank body 21 is used for fermenting organic matter, and the cavity formed between the inner tank body 21 and the outer tank body 22 is used for condensation. water circulation. Two through holes are opened on the outer wall of the outer tank 22 , and a long pipe with a valve is installed in the through holes. When the fermentation in the tank body 2 is in progress, the valves of the water supply port 221 and the water outlet 222 are opened to allow the condensed water to flow in and out to achieve the purpose of cooling the fermentation liquid.

As shown in Figure 2, when the fermentation liquid is stored and fermented in the tank body 2, in order to allow the fermentation liquid to be fully mixed and make the fermentation more sufficient, a rotating shaft 223 is vertically installed at the central position of the bottom of the tank body 2. The rotating shaft 223 One end is rotatably mounted on the inner tank body 21 and the outer tank body 22 , and the other end is rotatably mounted on the tank cover 3 . The rotating shaft 223 is provided with a number of rectangular blades 225 at intervals along the axis. When the rotating shaft 223 rotates, the blades 225 on the rotating shaft 223 rotate to exert force on the fermentation liquid, so that the fermentation liquid is fully mixed in the horizontal direction and the fermentation is more sufficient. . A screw shaft 224 is spirally wound and fixed on the rotating shaft 223, and a plurality of rectangular blades 225 are also installed on the screw shaft 224 at intervals. When the rotating shaft 223 rotates, the screw shaft 224 also rotates synchronously. The 225 exerts force on the fermentation liquid in multiple directions, and the stirring of the fermentation liquid makes the material exchange occur in the vertical direction of the fermentation liquid. The rotating shaft 223 and the screw shaft 224 jointly agitate the fermentation liquid, so that the fermentation liquid in the whole tank 2 is mixed from multiple directions, and the mixing is more sufficient.

A fixing plate 11 is fixed at the bottom of the support base 1. The fixing plate 11 is bent to both ends to form a bending section and a accommodating groove, and the bending section is connected with the supporting base 1; a driving motor 12 is installed in the accommodating groove, and the driving motor 12 The motor shaft is connected to the rotating shaft 223 . The driving motor 12 is started to move, and the rotating shaft 223 is driven to rotate and stir the fermentation liquid.

A number of through holes 31 are spaced apart on the tank cover 3 with the axis of the rotating shaft 223 as the center. A protective tube 32 covering all the through holes 31 is fixed on the side of the tank cover 3 away from the tank body 2, and the other side of the protective tube 32 is fixed. An air filter assembly 33 is installed at one end; the other side of the tank cover 3 facing the tank body 2 is covered with a ventilation pipe 34 with a through hole 31 , and the ventilation pipe 34 extends away from the side of the tank cover 3 to form a trumpet-shaped opening. The air is filtered through the air filter assembly 33 to form oxygen-enriched air into the protective tube 32, through the through hole 31, and into the tank 2 from the vent tube 34, on the one hand, for the survival and reproduction of the aerobic microorganisms in the fermentation broth. Oxygen, on the other hand, can blow out or burst the air bubbles produced by microorganisms.

A number of defoaming columns 211 are annularly arranged on the inner wall of the tank body 2 close to the tank cover 3 . The oxygen-enriched air blown out from the vent pipe 34 blows the air bubbles generated in the fermentation tank to the inner wall of the tank body 2 , and the air bubbles contact the defoaming edge 212 to break the air bubbles, thereby reducing the number of air bubbles in the tank body 2 .

There are four installation ports spaced apart on the tank cover 3, which are used as a water inlet 35, a feeding port 36, a sampling port 37 and a temperature control port 38. The water inlet 35 and the feeding port 36 realize the entry of water and organic matter in the fermentation broth. , so that the fermentation can be carried out normally. During the fermentation process, a sampler and a temperature measuring component are installed on the sampling port 37 and the temperature control port 38 to monitor the effective components and temperature in the fermentation broth in real time. A number of air outlets 39 are provided around the tank cover 3 , so that the carbon dioxide generated in the tank body 2 can be discharged in time, and the number of air bubbles in the tank body 2 can be effectively reduced.

When using the fermenter, firstly, the organic matter to be fermented is introduced from the feed inlet 36, and the water is introduced from the water inlet 35. After the condensed water between the outer tank 22 and the inner tank 21 begins to circulate, start the driving motor 12 , so that the rotating shaft 223 drives the screw shaft 224 to rotate to stir the fermentation liquid. After the air is filtered by the air filter assembly 33, it is passed into the tank body 2 through the through hole 31, and the air bubbles generated in the tank body are blown to the defoaming edges 212 on the inner wall of the tank body 2 to break the bubbles and reduce the air bubbles in the tank body 2. The number of bubbles improves the defoaming ability of the tank itself.

This specific embodiment is only an explanation of the application, and it does not limit the application. Those skilled in the art can make modifications to the embodiment without creative contribution as needed after reading this specification, but as long as the rights of the application are All claims are protected by patent law.

Claims (8)

1. A fermentation tank that is convenient for defoaming, comprising a tank body (2) and a tank cover (3), and the tank cover (3) is covered on the tank body (2), characterized in that: the tank A rotating stirring paddle is installed on the body (2) and the tank cover (3), and a gas delivery assembly is installed on the tank cover (3), and the gas delivery component is located above the liquid level of the fermentation liquid, and the tank body (2) An annular defoaming column (211) is arranged on the inner wall close to the can cover (3), and the defoaming column (211) is prismatic on the side facing the axis of the can body (2). 2. The fermenter according to claim 1, characterized in that: the air transport assembly comprises an air filter assembly (33), and the tank cover (3) is provided with a plurality of through holes (31). ), the air filter assembly (33) is installed on the side of the tank cover (3) away from the tank body (2) and can cover the through hole (31). 3 . The fermenter according to claim 2 , characterized in that: a vent pipe ( 34 ) is installed on the side of the tank cover ( 3 ) facing the tank body ( 2 ). One end of the ventilation pipe (34) connected with the tank cover (3) is covered with all the through holes (31), and the other end of the ventilation pipe (34) faces the inside of the tank body (2). 4 . The fermenter according to claim 3 , wherein the vent pipe ( 34 ) extends away from the end of the tank cover ( 3 ) to form a trumpet-shaped opening. 5 . 5. A kind of fermentation tank which is convenient for defoaming according to claim 1, is characterized in that: described tank cover (3) is provided with water inlet (35), feed inlet (36), sampling port (37) , a temperature control port (38) and a number of air outlets (39). 6. The fermenter according to claim 1, characterized in that: the tank body (2) comprises an inner tank body (21) and an outer tank body (22), and the outer tank body (22). 22) A water supply port (221) and a water outlet (222) are opened in the vertical direction, and valves are installed on both the water supply port (221) and the water outlet (222). 7. The fermenter according to claim 1, characterized in that: a drive device for driving a rotating stirring paddle is installed outside the tank body (2), and the rotating stirring paddle comprises a vertical stirring paddle. The rotating shaft (223) and the screw shaft (224) mounted on the rotating shaft (223). The fermenter according to claim 7, characterized in that: a plurality of blades (225) are installed on the rotating shaft (223) and the screw shaft (224).

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