Automatic defoaming device for fermentation tank

The automatic defoaming device for the fermentation tank, using a dual-axis motor-driven defoaming component and a suction pump system, breaks up the air bubbles inside the fermentation tank, solving the problem of foam accumulation during fermentation and achieving a highly efficient defoaming effect.

CN224252172UActive Publication Date: 2026-05-19CHANGZHOU SANGAO BIOTECHNOLOGY ENG EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU SANGAO BIOTECHNOLOGY ENG EQUIP CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Excessive foam accumulation during the current fermentation process is difficult to remove in a timely manner, affecting the normal fermentation process. Furthermore, existing defoamers are inefficient and cannot effectively eliminate bubbles.

Method used

An automatic defoaming device for fermentation tanks is used. The defoaming components and suction pump system driven by a dual-shaft motor use spikes and bubble-piercing plates to break up bubbles. The foam is then pumped into the defoaming box for further defoaming before being returned to the tank.

Benefits of technology

It improves the defoaming effect of the fermentation liquid in the fermenter, ensures the smooth progress of the fermentation process, and avoids foam accumulation and liquid leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an automatic defoaming device for a fermentation tank, which relates to the technical field of defoaming of fermentation tanks and comprises a tank body, a discharge port is mounted on the bottom surface of the tank body, and a defoaming component and an auxiliary component are arranged on the tank body. According to the automatic defoaming device for the fermentation tank, a double-shaft motor is started to drive a driving bevel gear and a driving chain wheel to rotate at the same time, the driving bevel gear can drive a first rotating rod to rotate through meshing with a driven bevel gear, the first rotating rod can drive a fixing frame to rotate, and when bubbles penetrate through the fixing frame, the bubbles can be punctured through a first puncture head on a grid rod; meanwhile, a driving chain wheel can drive a second rotating rod to rotate through transmission connection with a driven chain wheel, the second rotating rod can drive a bubble stabbing plate to rotate, and therefore bubbles can be stabbed through second stabbing heads on the bubble stabbing plate when the fermentation liquor is discharged, and the defoaming effect of the bubble stabbing plate is enhanced.
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Description

Technical Field

[0001] This utility model relates to a defoaming device, specifically an automatic defoaming device for fermentation tanks, belonging to the field of defoaming technology for fermentation tanks. Background Technology

[0002] Fermentation is an important method for product processing. Microbial fermentation equipment is widely used in industries such as beverages, chemicals, food, dairy products, condiments, brewing, and pharmaceuticals, and mainly serves to cultivate microorganisms.

[0003] Fermentation is an important means of product production and processing. During the fermentation process, foam is constantly generated and accumulated. When too much foam accumulates or is not removed in time, it will affect the normal progress of fermentation and may even cause "liquid leakage". Therefore, defoaming treatment is required for the fermentation process. Currently, defoaming agents are generally used to achieve the defoaming effect, but this method is inefficient and has limited effect on eliminating bubbles.

[0004] Therefore, an automatic defoaming device for fermentation tanks is proposed here. Utility Model Content

[0005] This invention proposes an automatic defoaming device for fermentation tanks, which can improve the defoaming effect on the fermentation liquid inside the tank.

[0006] This utility model is achieved through the following technical solution: an automatic defoaming device for fermentation tanks, including a tank body, a discharge port installed on the bottom surface of the tank body, and a defoaming component and an auxiliary component provided on the tank body.

[0007] The defoaming assembly includes a dual-axis motor fixed to the tank body and a first rotating rod rotatably connected to the inner wall of a hole on the upper side of the tank body. A driven bevel gear is fixed to the top of the first rotating rod. A driving bevel gear is fixed to the output shaft end of the dual-axis motor on the left side, and the driving bevel gear meshes with the driven bevel gear. Multiple fixing blocks are fixed to the outer surface of the first rotating rod inside the tank body. A fixing frame is fixed to the side of the fixing block away from the first rotating rod. Multiple grid rods are fixed inside the fixing frame. Multiple first spikes are fixed to the outer surface of the grid rods.

[0008] Furthermore, a second rotating rod is rotatably connected to the inner wall of the discharge port, and one end of the second rotating rod extends through to the outside of the discharge port. A drive sprocket is fixed to the output shaft end of the dual-shaft motor on the right side. A driven sprocket is fixed to the end of the second rotating rod away from the discharge port, and the driven sprocket is connected to the drive sprocket. Multiple puncture plates are fixed to the outer surface of the second rotating rod inside the discharge port, and multiple second spikes are fixed to the outer side of the puncture plates.

[0009] Furthermore, a support plate is fixed to the upper surface of the tank, and the bottom surface of the dual-axis motor is fixed to the upper surface of the tank.

[0010] Furthermore, a support block is fixed to the bottom surface of the tank, and the outer surface of the second rotating rod is rotatably connected to the inner wall of the hole on the support block.

[0011] Furthermore, the auxiliary components include a suction pump and a defoaming box installed on the upper surface of the tank. The input end of the suction pump is connected to the tank through an inlet pipe, and the output end of the suction pump is connected to the defoaming box through an outlet pipe. A defoaming plate is installed inside the defoaming box, and a delivery pipe is installed on the bottom surface of the defoaming box, with the bottom end of the delivery pipe penetrating into the tank.

[0012] Furthermore, a feed inlet is installed on the upper surface of the tank, and a sealing cap is installed on the discharge outlet.

[0013] Furthermore, the bottom surface of the tank is fixed with multiple support legs, and the bottom end of each support leg is fixed with an anti-slip pad.

[0014] This utility model provides an automatic defoaming device for fermentation tanks, which has the following beneficial effects:

[0015] The fermenter uses an automatic defoaming device. By starting a dual-shaft motor, it simultaneously drives the active bevel gear and the active sprocket to rotate. The active bevel gear, through meshing with the driven bevel gear, drives the first rotating rod to rotate. The first rotating rod drives the fixed frame to rotate. When bubbles pass through the fixed frame, they can be punctured by the first spikes on the grid rod, improving the defoaming effect on the fermentation liquid inside the tank. At the same time, the active sprocket, through its transmission connection with the driven sprocket, drives the second rotating rod to rotate. The second rotating rod drives the bubble-piercing plate to rotate, so that when the fermentation liquid is discharged, the bubbles can be punctured by the second spikes on the bubble-piercing plate, further enhancing the defoaming effect.

[0016] The fermenter uses an automatic defoaming device. By starting a suction pump, the accumulated foam on the surface of the fermentation liquid is extracted and sent to the inside of the defoaming box. The defoaming plate inside the defoaming box can break the bubbles. Finally, the defoamed fermentation liquid is transported back to the inside of the tank through a delivery pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a cross-sectional schematic diagram of the tank body and the discharge port in this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the tank and defoaming box in this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Tank body; 101. Inlet; 102. Outlet; 1021. Sealing cap; 103. Support leg; 1031. Anti-slip mat;

[0023] 2. Defoaming component; 201. Dual-shaft motor; 202. First rotating rod; 203. Driving bevel gear; 204. Driven bevel gear; 205. Fixing block; 206. Fixing frame; 207. Grid rod; 208. First spike; 209. Driving sprocket; 210. Driven sprocket; 211. Second rotating rod; 212. Defoaming plate; 213. Second spike;

[0024] 3. Auxiliary components; 301. Suction pump; 302. Defoaming box; 303. Defoaming board; 304. Delivery pipe;

[0025] 4. Support plate; 5. Support block. Detailed Implementation

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

[0027] Please see Figures 1-4 The present invention proposes the following implementation scheme: an automatic defoaming device for a fermentation tank, comprising a tank body 1, wherein a discharge port 102 is installed on the bottom surface of the tank body 1, and a defoaming component 2 and an auxiliary component 3 are provided on the tank body 1.

[0028] The upper surface of the tank 1 is equipped with a feed inlet 101, and the discharge outlet 102 is equipped with a sealing cap 1021.

[0029] The bottom surface of the tank 1 is fixed with a plurality of support legs 103, and the bottom end of the support legs 103 is fixed with an anti-slip pad 1031.

[0030] Please refer to this carefully. Figure 3The defoaming component 2 includes a dual-axis motor 201 fixed on the tank body 1 and a first rotating rod 202 rotatably connected to the inner wall of the upper side hole of the tank body 1. A driven bevel gear 204 is fixed at the top of the first rotating rod 202. A driving bevel gear 203 is fixed at the output shaft end of the dual-axis motor 201 on the left side, and the driving bevel gear 203 meshes with the driven bevel gear 204. A plurality of fixing blocks 205 are fixed on the outer surface of the first rotating rod 202 inside the tank body 1. A fixing frame 206 is fixed on the side of the fixing block 205 away from the first rotating rod 202. A plurality of grid rods 207 are fixed inside the fixing frame 206. A plurality of first spikes 208 are fixed on the outer surface of the grid rods 207.

[0031] The inner wall of the discharge port 102 is rotatably connected to a second rotating rod 211, and one end of the second rotating rod 211 extends through to the outside of the discharge port 102. The output shaft end of the dual-axis motor 201 on the right side is fixed with a drive sprocket 209. The end of the second rotating rod 211 away from the discharge port 102 is fixed with a driven sprocket 210, and the driven sprocket 210 is connected to the drive sprocket 209 in a transmission connection. Multiple puncture plates 212 are fixed on the outer surface of the second rotating rod 211 inside the discharge port 102, and multiple second spikes 213 are fixed on the outer side of the puncture plates 212.

[0032] A support plate 4 is fixed to the upper surface of the tank body 1, and the bottom surface of the dual-axis motor 201 is fixed to the upper surface of the tank body 1.

[0033] The bottom surface of the tank 1 is fixed with a support block 5, and the outer surface of the second rotating rod 211 is rotatably connected to the inner wall of the hole on the support block 5.

[0034] By starting the dual-shaft motor 201, the active bevel gear 203 and the active sprocket 209 are driven to rotate simultaneously. The active bevel gear 203, through meshing with the driven bevel gear 204, can drive the first rotating rod 202 to rotate. The first rotating rod 202 can drive the fixed frame 206 to rotate. When bubbles pass through the fixed frame 206, they can be punctured by the first spike 208 on the grid rod 207, improving the defoaming effect on the fermentation liquid in the tank 1. At the same time, the active sprocket 209, through its transmission connection with the driven sprocket 210, can drive the second rotating rod 211 to rotate. The second rotating rod 211 can drive the bubble-piercing plate 212 to rotate, so that when the fermentation liquid is discharged, the bubbles can be punctured by the second spike 213 on the bubble-piercing plate 212, enhancing its defoaming effect.

[0035] Please refer to this carefully. Figure 4The auxiliary component 3 includes a suction pump 301 and a defoaming box 302 installed on the upper surface of the tank 1. The input end of the suction pump 301 is connected to the tank 1 through an inlet pipe, and the output end of the suction pump 301 is connected to the defoaming box 302 through an outlet pipe. A defoaming plate 303 is installed inside the defoaming box 302, and a delivery pipe 304 is installed on the bottom surface of the defoaming box 302, with the bottom end of the delivery pipe 304 penetrating into the tank 1.

[0036] The accumulated foam on the surface of the fermentation liquid is extracted by starting the suction pump 301 and sent to the defoaming box 302. The defoaming plate 303 in the defoaming box 302 can break the bubbles. Finally, the defoamed fermentation liquid is transported back to the tank 1 through the delivery pipe 304.

[0037] In use, this invention works as follows: Starting the dual-shaft motor 201 simultaneously drives the active bevel gear 203 and the active sprocket 209 to rotate. The active bevel gear 203, through meshing with the driven bevel gear 204, drives the first rotating rod 202 to rotate. The first rotating rod 202 then drives the fixed frame 206 to rotate. When bubbles pass through the fixed frame 206, they can be punctured by the first spike 208 on the mesh rod 207, improving the defoaming effect on the fermentation liquid inside the tank 1. Simultaneously, the active sprocket 209 is connected to the driven sprocket 210 via a transmission connection. The connection can drive the second rotating rod 211 to rotate, and the second rotating rod 211 can drive the bubble-piercing plate 212 to rotate, so that when the fermentation liquid is discharged, the second spike 213 on the bubble-piercing plate 212 can pierce the bubbles, thereby enhancing its defoaming effect. Then, by starting the suction pump 301, the accumulated foam on the surface of the fermentation liquid is extracted and pumped into the defoaming box 302. The defoaming plate 303 in the defoaming box 302 can break the bubbles. Finally, the defoamed fermentation liquid is transported back into the tank 1 through the conveying pipe 304.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic defoaming device for a fermentation tank, comprising a tank body (1), characterized in that: The bottom surface of the tank (1) is equipped with a discharge port (102), and the tank (1) is provided with a defoaming component (2) and an auxiliary component (3). The defoaming component (2) includes a dual-axis motor (201) fixed on the tank body (1) and a first rotating rod (202) rotatably connected to the inner wall of the upper hole of the tank body (1). The top end of the first rotating rod (202) is fixed with a driven bevel gear (204). The output shaft end of the dual-axis motor (201) on the left side is fixed with a driving bevel gear (203), and the driving bevel gear (203) meshes with the driven bevel gear (204). The outer surface of the first rotating rod (202) inside the tank body (1) is fixed with a plurality of fixing blocks (205). The side of the fixing block (205) away from the first rotating rod (202) is fixed with a fixing frame (206). The inside of the fixing frame (206) is fixed with a plurality of grid rods (207). The outer surface of the grid rods (207) is fixed with a plurality of first spikes (208).

2. The automatic defoaming device for fermenters according to claim 1, characterized in that: The inner wall of the discharge port (102) is rotatably connected to a second rotating rod (211), and one end of the second rotating rod (211) extends through to the outside of the discharge port (102). The output shaft end of the dual-shaft motor (201) on the right side is fixed with a drive sprocket (209). The end of the second rotating rod (211) away from the discharge port (102) is fixed with a driven sprocket (210), and the driven sprocket (210) is connected to the drive sprocket (209) in a transmission connection. Multiple puncture plates (212) are fixed on the outer surface of the second rotating rod (211) inside the discharge port (102), and multiple second spikes (213) are fixed on the outer side of the puncture plates (212).

3. The automatic defoaming device for fermenters according to claim 1, characterized in that: The upper surface of the tank (1) is fixed with a support plate (4), and the bottom surface of the dual-axis motor (201) is fixed on the upper surface of the tank (1).

4. The automatic defoaming device for fermenters according to claim 2, characterized in that: The bottom surface of the tank (1) is fixed with a support block (5), and the outer surface of the second rotating rod (211) is rotatably connected to the inner wall of the hole on the support block (5).

5. The automatic defoaming device for fermenters according to claim 1, characterized in that: The auxiliary component (3) includes a suction pump (301) and a defoaming box (302) installed on the upper surface of the tank (1). The input end of the suction pump (301) is connected to the tank (1) through the liquid inlet pipe, and the output end of the suction pump (301) is connected to the defoaming box (302) through the liquid outlet pipe. The defoaming box (302) is equipped with a defoaming plate (303) inside, and a delivery pipe (304) is installed on the bottom surface of the defoaming box (302), with the bottom end of the delivery pipe (304) penetrating into the tank (1).

6. The automatic defoaming device for fermenters according to claim 1, characterized in that: The upper surface of the tank (1) is equipped with a feed inlet (101) and the discharge outlet (102) is equipped with a sealing cap (1021).

7. The automatic defoaming device for fermenters according to claim 1, characterized in that: The bottom surface of the tank (1) is fixed with a plurality of support legs (103), and the bottom end of the support legs (103) is fixed with an anti-slip pad (1031).