A fermentation mechanism

Abstract

The application discloses a fermentation mechanism, which comprises a tank body, a cavity is arranged in the tank body, an air distributor is fixedly arranged at the bottom of the cavity, a pipeline for conveying air is connected between the air distributor and the tank body, the air distributor comprises a top plate, side plates are connected to the two sides of the top plate and connected with the bottom of the tank body, through holes are formed in the side plates and the top plate, the diameter of the through hole of the top plate is larger than that of the through hole of the side plate, the top plate, the side plates and the bottom of the tank body jointly enclose an air shunting cavity, a distribution plate is arranged in the air shunting cavity, a shunting hole is formed in the distribution plate, a rotating device is connected to the distribution plate, and the distribution plate rotates relative to the top plate under the action of the rotating device to adjust the coincidence degree of the shunting hole and the through hole. The distribution plate is driven to rotate in the air distributor through the rotating device, the coincidence degree of the shunting hole on the distribution plate and the through hole on the top plate is adjusted, the main flow direction of air is changed, and different oxygen requirements in the tank in the early fermentation stage and the middle and late fermentation stages are met.

Description

Technical Field

[0001] This utility model particularly relates to a fermentation mechanism. Background Technology

[0002] Existing fermentation mechanisms include a tank with a simple annular or single-hole air distributor installed at the bottom. The air distributor is usually fixed to the bottom of the tank. However, this type of fermentation mechanism has the following problems during use:

[0003] In the early stages of fermentation, the cell density is low and mainly distributed in the nutrient-rich bottom area of ​​the tank. At this time, the distributor is close to the bottom to prioritize meeting the oxygen needs of the bottom microorganisms. In the middle and late stages of fermentation, the cell density increases significantly (especially aerobic bacteria), and active cells mainly gather in the middle and upper layers. Traditional fixed distributors can lead to the formation of low-oxygen zones in the middle and upper layers, thus affecting the fermentation effect. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a fermentation mechanism.

[0005] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0006] A fermentation apparatus includes a tank with a cavity inside. An air distributor is fixedly installed at the bottom of the cavity. An air distributor is connected to the tank via a pipe for supplying air. The air distributor includes a top plate, and side plates connected to the bottom of the tank are respectively connected to both sides of the top plate. Both the side plates and the top plate have through holes. The diameter of the through hole in the top plate is larger than the diameter of the through hole in the side plates. The top plate, side plates, and bottom of the tank together enclose an air distribution cavity. A distribution plate is installed in the air distribution cavity. The distribution plate has distribution holes. A rotating device is connected to the distribution plate. The distribution plate rotates relative to the top plate under the action of the rotating device to adjust the overlap of the distribution holes and the through holes.

[0007] Preferably, the rotating device includes a transmission rod, the top plate is disposed on the transmission rod, and a rotary motor for driving the transmission rod to rotate is connected to the outside of the tank.

[0008] Preferably, the top plate is threaded onto the transmission rod.

[0009] Preferably, a reinforcing plate is connected to the transmission rod, and an elastic element is connected between the reinforcing plate and the top plate.

[0010] Preferably, the elastic element is a spring.

[0011] Preferably, the tank body is further provided with a guide plate located directly above the air distributor, and secondary flow dividers are connected to both sides of the guide plate. Gas distribution holes are provided on both the guide plate and the secondary flow dividers. The diameter of the gas distribution holes on the guide plate is smaller than the diameter of the gas distribution holes on the secondary flow dividers.

[0012] The beneficial effects of this utility model are:

[0013] This application uses a rotating device to drive the distribution plate to rotate inside the air distributor. By adjusting the overlap between the diversion holes on the distribution plate and the through holes on the top plate, the main airflow direction can be changed to meet the different oxygen requirements in the tank during the early and middle-late stages of fermentation. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a fermentation mechanism according to this application;

[0016] Figure 2 This is a structural diagram showing the overlap between the diversion holes on the distribution plate and the through holes on the top plate. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0018] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0019] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.

[0020] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0021] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0022] A fermentation apparatus, as described above Figures 1-2 The device includes a tank body 1, a cavity 2 inside the tank body 1, an air distributor fixedly installed at the bottom of the cavity 2, and a pipe 3 for conveying air connected between the air distributor and the tank body 1. The air distributor includes a top plate 41, and side plates 42 connected to the bottom of the tank body 1 on both sides of the top plate 41. Both the side plates 42 and the top plate 41 have through holes, and the diameter of the through hole in the top plate 41 is larger than the diameter of the through hole in the side plate 42. The top plate 41, the side plates 42, and the bottom of the tank body 1 together form an air diversion cavity 5. A distribution plate 6 is installed in the air diversion cavity 5, and a diversion hole is opened on the distribution plate 6. A rotating device is connected to the distribution plate 6, and the distribution plate 6 rotates relative to the top plate 41 under the action of the rotating device to adjust the overlap of the diversion hole and the through hole.

[0023] Furthermore, the rotating device includes a transmission rod 71, the top plate 41 is disposed on the transmission rod 71, and a rotary motor for driving the transmission rod 71 to rotate is connected to the outside of the tank body 1.

[0024] Furthermore, the top plate 41 is threaded onto the transmission rod 71.

[0025] Furthermore, a reinforcing plate 8 is connected to the transmission rod 71, and an elastic element 9 is connected between the reinforcing plate 8 and the top plate 41.

[0026] Furthermore, the elastic element 9 is a spring.

[0027] Furthermore, a guide plate 10 is also provided inside the tank body 1, located directly above the air distributor. Secondary flow dividers 11 are connected to both sides of the guide plate 10. Gas distribution holes are provided on both the guide plate 10 and the secondary flow dividers 11. The diameter of the gas distribution holes on the guide plate 10 is smaller than the diameter of the gas distribution holes on the secondary flow dividers 11.

[0028] The working principle of this utility model is as follows:

[0029] A pipe 3 is connected to the air distributor. One end of the pipe 3 is connected to the tank 1 and can be connected to an air source. Air enters the air distribution chamber 5 of the air distributor through the pipe 3. In the early stage of fermentation, when the cell density is low and mainly distributed at the bottom of the tank 1, the rotating device drives the distribution plate 6 to rotate so that the overlap between the distribution holes on the distribution plate 6 and the through holes on the top plate 41 is minimized (i.e., the amount of air allowed to pass through is minimized, and the overlap is the minimum). Figure 2 (The shaded area where the middle diversion hole and the through hole overlap) At this time, air flows out from the through hole of the side plate 42 and mainly gathers at the bottom of the tank 1, giving priority to meeting the oxygen demand of the bottom microorganisms. In the later stages of fermentation, the cell density increases significantly, especially for aerobic bacteria. Active cells mainly gather in the upper and middle layers of tank 1. At this time, the rotating device drives the distribution plate 6 to rotate so that the overlap between the diversion holes on the distribution plate 6 and the through holes on the top plate 41 is maximized (i.e., the amount of air allowed to pass through is maximized). The diameter of the through holes on the top plate 41 is larger than that of the through holes on the side plate 42. At this time, most of the air flows to the upper and middle layers of tank 1 through the through holes on the top plate 41. The oxygen concentration in the upper and middle layers of tank 1 will be greater than that at the bottom of tank 1 to meet the oxygen demand of the active cells gathered in the upper and middle layers. This application uses a rotating device to drive the distribution plate 6 to rotate in the air distributor. By adjusting the overlap between the diversion holes on the distribution plate 6 and the through holes on the top plate 41, the main airflow direction is changed to meet the different oxygen requirements in the tank during the early and middle and late stages of fermentation.

[0030] As an example of Embodiment 1, the rotating device takes the rotating motor and the transmission rod 71 as an example. The distribution plate 6 is connected to the transmission rod 71. Preferably, the distribution plate 6 is threaded to the transmission rod 71. In this application, a reinforcing plate 8 is connected to the transmission rod 71, and an elastic element 9 is connected between the reinforcing plate 8 and the distribution plate 6. When air enters the air distributor, the air first exerts an upward force on the distribution plate 6, and the elastic element 9 mainly buffers the force on the distribution plate 6, further enhancing the connection stability between the distribution plate 6 and the transmission rod 71. The elastic element 9 is preferably implemented as a spring.

[0031] Based on the above technical solution, this application also provides a guide plate 10 directly above the air distributor, and secondary diversion plates 11 are respectively provided on both sides of the guide plate 10. The two ends of the secondary diversion plates 11 are respectively fixed on the inner side wall of the tank 1. The diameter of the gas distribution hole on the guide plate 10 is smaller than the diameter of the gas distribution hole on the secondary diversion plate 11. When the overlap between the diversion hole on the distribution plate 6 and the through hole on the top plate 41 is the largest, most of the air in the air distributor will first gather on the guide plate 10. Since the diameter of the gas distribution hole on the guide plate 10 is smaller than the diameter of the gas distribution hole on the secondary diversion plate 11, the air located on the guide plate 10 will be diverted to the secondary diversion plate 11, so that the air can be evenly distributed in the middle and upper layers of the tank 1. This design can prevent the problem of local oxygen deficiency in the middle and upper layers.

[0032] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A fermentation mechanism, characterized in that, The device includes a tank (1), a cavity (2) is provided inside the tank (1), an air distributor is fixedly provided at the bottom of the cavity (2), and a pipe (3) for conveying air is connected between the air distributor and the tank (1). The air distributor includes a top plate (41), and side plates (42) connected to the bottom of the tank (1) are respectively connected to both sides of the top plate (41). Both the side plates (42) and the top plate (41) are provided with through holes. The diameter of the through hole of the top plate (41) is larger than the diameter of the through hole of the side plate (42). The top plate (41), the side plates (42) and the bottom of the tank (1) together form an air diversion cavity (5). A distribution plate (6) is provided inside the air diversion cavity (5). A diversion hole is provided on the distribution plate (6). A rotating device is connected to the distribution plate (6). The distribution plate (6) rotates relative to the top plate (41) under the action of the rotating device to adjust the overlap of the diversion hole and the through hole.

2. The fermentation mechanism according to claim 1, characterized in that, The tank (1) is also provided with a guide plate (10) located directly above the air distributor. The two sides of the guide plate (10) are respectively connected to secondary flow dividers (11). Gas distribution holes are opened on both the guide plate (10) and the secondary flow dividers (11). The diameter of the gas distribution hole of the guide plate (10) is smaller than the diameter of the gas distribution hole on the secondary flow divider (11).

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