Microbial fermentation device with cleaning function

By designing a sealing ring and an exhaust mechanism for automatic pressure relief in the microbial fermentation device, combined with a scraper and a cleaning mechanism for the water inlet, the problems of increased gas pressure and inconvenient cleaning during fermentation are solved, achieving automatic pressure relief and cleaning, and improving the device's performance.

CN224337484UActive Publication Date: 2026-06-09JIANGSU SIJI LIANYANG AGRICULTURAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SIJI LIANYANG AGRICULTURAL TECHNOLOGY CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing microbial fermentation devices are prone to pressure rise and cell death due to untimely depressurization during fermentation. Furthermore, they are difficult to clean after use, affecting the maintenance and efficiency of the device.

Method used

The design incorporates a sealing ring and venting mechanism for automatic pressure relief. The cleaning mechanism achieves automatic cleaning through scrapers and a water inlet, while the sealing and cleaning functions of the tank are achieved using a hydraulic cylinder and a motor drive.

Benefits of technology

It achieves automatic pressure relief during the fermentation process to prevent cell death, and improves the cleaning efficiency and effectiveness of the device through an automatic cleaning mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of fermentation equipment, specifically relating to a microbial fermentation device with a cleaning function. It includes a tank, with multiple evenly distributed support rods fixedly connected to the bottom of the tank, a bracket fixedly connected to the back of the tank, and a hydraulic cylinder fixedly installed on the top of the bracket. The output end of the hydraulic cylinder is slidably connected to the bracket. This utility model utilizes a drive motor to rotate an electrically heated stirring rod to stir the fermentation process. An oxygen supply pipe delivers oxygen into the tank to ensure a suitable fermentation environment for the microorganisms. The electrically heated stirring rod can also heat the material as needed. During fermentation, the tank remains sealed to prevent contamination by external bacteria. When the internal pressure of the tank becomes too high, the gas can be automatically released through a fixed base, preventing the death of microorganisms due to excessive internal pressure.
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Description

Technical Field

[0001] This utility model relates to the field of fermentation equipment technology, and in particular to a microbial fermentation device with a cleaning function. Background Technology

[0002] Snakehead fish and mitten crabs can be co-cultured, as they benefit from each other and help maintain the ecological balance of the aquatic body. Snakehead fish are carnivorous, mainly feeding on small fish, shrimp, and crabs, while mitten crabs feed on benthic invertebrates and aquatic plants. The two species do not attack or compete for food. During co-culture, the large amount of excrement from the snakehead fish can be fermented using beneficial microorganisms. The treated excrement can then be added to the crab pond as organic fertilizer, providing nutrients for the aquatic plants needed for the growth of the mitten crabs.

[0003] Utility model patent CN209537463U discloses a microbial fermentation device, including a fermenter and a base plate. The fermenter is located above the top of the base plate. Feed inlets are provided on both sides of the top of the fermenter. A first motor is fixedly installed at the center of the top of the fermenter. An exhaust port and a heater are provided on one side of the fermenter, and an air inlet and a liquid outlet are provided on the other side. A sealed cavity is provided on the inner wall of this side of the fermenter. The shaft of the first motor rotates vertically downwards and is equipped with a stirring rod. The bottom end of the stirring rod extends into the fermenter and connects to the bottom bearing of the fermenter. The beneficial effect is that this utility model uses a second motor, a first pulley, and a second pulley in combination to drive the fermenter to rotate. During rotation, due to the instability of the fermenter's center of gravity, the fermenter will tilt and sway around the rotating components, resulting in uniform mixing of the fermentation products inside the fermenter and improving fermentation efficiency.

[0004] In the aforementioned existing technology, the fermentation process needs to be sealed to prevent contamination during use. However, gas is produced during fermentation, which causes the internal pressure of the device to rise. Existing fermentation devices are prone to cell death if pressure is not released in time, and the devices are inconvenient to clean after use, leading to troublesome maintenance. Therefore, improvements to the existing technology are needed. Utility Model Content

[0005] This invention provides a microbial fermentation device with a cleaning function, which solves the technical problems of inconvenience in depressurizing the inside of the device and inconvenience in cleaning the device after use.

[0006] To solve the above-mentioned technical problems, this utility model provides a microbial fermentation device with a cleaning function, including a tank. Multiple evenly distributed support rods are fixedly connected to the bottom of the tank. A bracket is fixedly connected to the back of the tank. A hydraulic cylinder is fixedly installed on the top of the bracket. The output end of the hydraulic cylinder is slidably connected to the bracket. A connecting strip is fixedly connected to the lower end of the hydraulic cylinder's output end. A rotating motor is fixedly installed on the upper end of the connecting strip. The output end of the rotating motor is rotatably connected to the connecting strip. A connecting frame is fixedly connected to the lower end of the rotating motor's output end. Two symmetrically distributed cover plates are fixedly installed on the lower end of the connecting frame. A drive motor is fixedly installed on the top of each cover plate. The output end of the drive motor is rotatably connected to the cover plate. An electric heating stirring rod is fixedly connected to the lower end of one of the drive motor's output ends. An oxygen supply pipe is fixedly connected inside one of the cover plates. An exhaust mechanism is provided on one of the cover plates, and a cleaning mechanism is provided on the other cover plate.

[0007] Preferably, a sealing ring is rotatably fitted onto the outer side of the output end of the drive motor, and the sealing ring is fixedly connected to the cover plate. By designing the sealing ring, the connection between the drive motor and the cover plate can be sealed.

[0008] Preferably, the venting mechanism includes a fixed base, with one of the cover plates having a fixed base fixedly connected inside. A baffle is slidably sleeved inside the fixed base, and a sliding rod is fixedly connected to the lower end of the baffle. A fixing strip is slidably sleeved on the outer side of the sliding rod, and the fixing strip is fixedly connected to the fixed base. A first spring is provided on the outer side of the sliding rod, and a plug is fixedly connected to the bottom of the sliding rod. By designing the venting mechanism, automatic pressure relief and venting of the tank interior can be achieved.

[0009] Preferably, a sealing sleeve is fixedly fitted onto the outer side of the plug, and the sealing sleeve is slidably connected to the fixing seat. By designing the sealing sleeve, the connection between the plug and the fixing seat can be sealed.

[0010] Preferably, one end of the first spring is fixedly connected to the plug, and the other end of the first spring is fixedly connected to the fixing strip. By designing the first spring, the force of the first spring can be applied to the plug.

[0011] Preferably, the cleaning mechanism includes a connecting sleeve, and another connecting sleeve is fixedly connected to the outer side of the output end of the drive motor. A connecting rod is slidably sleeved inside the connecting sleeve, a scraper is fixedly connected to the outer side of the connecting rod, and a guide rod is slidably sleeved inside the connecting rod. The guide rod is fixedly connected to the connecting sleeve, and a second spring is provided on the outer side of the guide rod. A water inlet is fixedly connected to the top of the other cover plate. This cleaning mechanism facilitates the cleaning of the inside of the tank.

[0012] Preferably, one end of the second spring is fixedly connected to the connecting rod, and the other end of the second spring is fixedly connected to the connecting sleeve. By designing the second spring, its force can be applied to the connecting rod.

[0013] Compared with related technologies, the microbial fermentation device with cleaning function provided by this utility model has the following beneficial effects:

[0014] This invention provides a microbial fermentation device with a cleaning function. By designing a drive motor, an electric heating stirring rod can be driven to rotate and stir the fermentation process. An oxygen supply pipe can deliver oxygen into the tank to ensure the fermentation environment for microorganisms. The electric heating stirring rod can also heat the material as needed. During the fermentation process, the tank is sealed to prevent external bacterial contamination. When the internal pressure of the tank is too high, the gas can be automatically released through the fixed seat, avoiding the problem of excessive internal pressure causing the microorganisms to die.

[0015] This utility model provides a microbial fermentation device with a cleaning function. By designing a drive motor, the output end of the drive motor can drive the connecting sleeve to rotate, thereby realizing the rotation of the connecting rod and the scraper. The scraper can rotate and scrape the inner wall of the tank. With the water inlet, water can be injected into the tank to realize the automatic cleaning of the device, improving the device's performance. Furthermore, the scraper is supported by a second spring inside the connecting sleeve, which can keep the scraper in close contact with the inner wall of the tank to improve the cleaning effect. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A three-dimensional sectional view of the tank structure;

[0018] Figure 3 This utility model Figure 2 Front sectional view of the fixed seat in the middle;

[0019] Figure 4 This utility model Figure 1 The front sectional view of the connecting sleeve structure in the middle.

[0020] Numbering on the map:

[0021] 1. Tank body; 2. Support rod; 3. Bracket; 4. Hydraulic cylinder; 5. Connecting bar; 6. Rotary motor; 7. Connecting frame; 8. Exhaust mechanism; 9. Cleaning mechanism; 10. Cover plate; 11. Drive motor; 12. Sealing ring; 13. Oxygen supply pipe; 14. Electric heating stirring rod; 81. Fixed seat; 82. Baffle; 83. Slide rod; 84. Fixing bar; 85. First spring; 86. Plug; 87. Sealing sleeve; 91. Connecting sleeve; 92. Connecting rod; 93. Scraper; 94. Guide rod; 95. Second spring; 96. Water inlet. Detailed Implementation

[0022] Please see Figure 1 , Figure 2 A microbial fermentation device with cleaning function includes a tank 1. Multiple evenly distributed support rods 2 are fixedly connected to the bottom of the tank 1. A bracket 3 is fixedly connected to the back of the tank 1. A hydraulic cylinder 4 is fixedly installed on the top of the bracket 3. The output end of the hydraulic cylinder 4 is slidably connected to the bracket 3. A connecting strip 5 is fixedly connected to the lower end of the output end of the hydraulic cylinder 4. A rotary motor 6 is fixedly installed on the upper end of the connecting strip 5. The output end of the rotary motor 6 is rotatably connected to the connecting strip 5. A connecting frame 7 is fixedly connected to the lower end of the output end of the rotary motor 6. Two symmetrically distributed covers are fixedly installed on the lower end of the connecting frame 7. A drive motor 11 is fixedly installed on the top of the cover plate 10. The output end of the drive motor 11 is rotatably connected to the cover plate 10. A sealing ring 12 is rotatably sleeved on the outside of the output end of the drive motor 11. The sealing ring 12 is fixedly connected to the cover plate 10. By designing the sealing ring 12, the connection between the drive motor 11 and the cover plate 10 can be sealed. An electric heating stirring rod 14 is fixedly connected to the lower end of the output end of one of the drive motors 11. An oxygen supply pipe 13 is fixedly connected inside one of the cover plates 10. An exhaust mechanism 8 is provided on one of the cover plates 10. A cleaning mechanism 9 is provided on the other cover plate 10.

[0023] Please see Figure 1 , Figure 2 , Figure 3The exhaust mechanism 8 includes a fixed seat 81, which is fixedly connected to the inside of a cover plate 10. A baffle 82 is slidably sleeved inside the fixed seat 81. A slide rod 83 is fixedly connected to the lower end of the baffle 82. A fixing strip 84 is slidably sleeved on the outside of the slide rod 83. The fixing strip 84 is fixedly connected to the fixed seat 81. A first spring 85 is provided on the outside of the slide rod 83. One end of the first spring 85 is fixedly connected to a plug 86, and the other end of the first spring 85 is fixedly connected to the fixing strip 84. By designing the first spring 85, the force of the first spring 85 can act on the plug 86. A plug 86 is fixedly connected to the bottom of the slide rod 83. A sealing sleeve 87 is fixedly sleeved on the outside of the plug 86. The sealing sleeve 87 is slidably connected to the fixed seat 81. By designing the sealing sleeve 87, the connection between the plug 86 and the fixed seat 81 can be sealed. By designing the exhaust mechanism 8, the tank 1 can be automatically depressurized and vented.

[0024] Please see Figure 1 , Figure 4 The cleaning mechanism 9 includes a connecting sleeve 91. The connecting sleeve 91 is fixedly connected to the outer side of the output end of another drive motor 11. A connecting rod 92 is slidably sleeved inside the connecting sleeve 91. A scraper 93 is fixedly connected to the outer side of the connecting rod 92. A guide rod 94 is slidably sleeved inside the connecting rod 92. The guide rod 94 is fixedly connected to the connecting sleeve 91. A second spring 95 is provided on the outer side of the guide rod 94. One end of the second spring 95 is fixedly connected to the connecting rod 92, and the other end of the second spring 95 is fixedly connected to the connecting sleeve 91. By designing the second spring 95, the force of the second spring 95 can be applied to the connecting rod 92. A water inlet 96 is fixedly connected to the top of another cover plate 10. By designing the cleaning mechanism 9, it is convenient to clean the inside of the tank 1.

[0025] Working principle: When in use, the material is first added to the inner wall of the tank 1. Then, the hydraulic cylinder 4 drives the cover plate 10 to move down and close the tank 1, so that the electric heating stirring rod 14 extends into the inside of the tank 1. The drive motor 11 drives the electric heating stirring rod 14 to rotate, which can stir and ferment the material. The oxygen supply pipe 13 can supply oxygen into the tank 1 to ensure the fermentation environment of microorganisms. In addition, the electric heating stirring rod 14 can also heat the material as needed.

[0026] During fermentation, when the internal pressure of tank 1 increases, gas enters the fixed seat 81 and pushes the plug 86 upward. The plug 86 drives the slide rod 83 to move upward along the fixed strip 84. The plug 86 will squeeze the first spring 85, and at the same time, the slide rod 83 will push the baffle 82 upward. When the sealing sleeve 87 separates from the inner wall of the fixed seat 81, the baffle 82 will rise out from the inside of the fixed seat 81. At this time, the gas will be discharged to the outside through the fixed seat 81. When the internal pressure of tank 1 is too high, the gas can be automatically depressurized and discharged through the fixed seat 81, avoiding the problem of the bacteria dying due to excessive internal pressure of tank 1.

[0027] After fermentation is complete, the material is discharged through tank 1. Then, hydraulic cylinder 4 drives cover plate 10 to move upwards and reset, removing the electric heating stirring rod 14 from inside tank 1. Next, the output of motor 6 drives connecting frame 7 and cover plate 10 to rotate. Cover plate 10 on the other side rotates to the upper part of tank 1. Then, the output of hydraulic cylinder 4 drives connecting bar 5 and connecting frame 7 downwards. Cover plate 10 simultaneously drives scraper 93 downwards, causing scraper 93 to contact tank 1. As scraper 93 moves downwards along tank 1, its tilted bottom causes it to be squeezed and move horizontally. Scraper 93 then drives connecting rod 92 along guide rod 94 and... When the connecting sleeve 91 moves horizontally, the connecting rod 92 compresses the second spring 95, ultimately causing the cover plate 10 to seal the tank 1. Water is then injected into the tank 1 through the inlet 96. Then, the drive motor 11 is started. The output end of the drive motor 11 drives the connecting sleeve 91, the connecting rod 92, and the scraper 93 to rotate. The scraper 93 can rotate and scrape the inner wall of the tank 1, thereby realizing the automatic cleaning of the device and improving the device's performance. Furthermore, the scraper 93 is supported by the second spring 95 inside the connecting sleeve 91, which allows the scraper 93 to adhere tightly to the inner wall of the tank 1 to enhance the cleaning effect.

Claims

1. A microbial fermentation device with a cleaning function, comprising a tank (1), characterized in that: The bottom of the tank (1) is fixedly connected to a plurality of evenly distributed support rods (2). The back of the tank (1) is fixedly connected to a bracket (3). A hydraulic cylinder (4) is fixedly installed on the top of the bracket (3). The output end of the hydraulic cylinder (4) is slidably connected to the bracket (3). A connecting strip (5) is fixedly connected to the lower end of the output end of the hydraulic cylinder (4). A rotating motor (6) is fixedly installed on the upper end of the connecting strip (5). The output end of the rotating motor (6) is rotatably connected to the connecting strip (5). A connecting frame is fixedly connected to the lower end of the output end of the rotating motor (6). 7) Two symmetrically distributed cover plates (10) are fixedly installed at the lower end of the connecting frame (7). A drive motor (11) is fixedly installed on the top of the cover plate (10). The output end of the drive motor (11) is rotatably connected to the cover plate (10). An electric heating stirring rod (14) is fixedly connected to the lower end of the output end of one of the drive motors (11). An oxygen supply pipe (13) is fixedly connected inside one of the cover plates (10). An exhaust mechanism (8) is provided on one of the cover plates (10). A cleaning mechanism (9) is provided on the other cover plate (10).

2. The microbial fermentation device with cleaning function according to claim 1, characterized in that: A sealing ring (12) is rotatably sleeved on the outer side of the output end of the drive motor (11), and the sealing ring (12) is fixedly connected to the cover plate (10).

3. The microbial fermentation device with cleaning function according to claim 1, characterized in that: The exhaust mechanism (8) includes a fixed seat (81), and a fixed seat (81) is fixedly connected inside one of the cover plates (10). A baffle (82) is slidably sleeved inside the fixed seat (81). A slide rod (83) is fixedly connected to the lower end of the baffle (82). A fixing strip (84) is slidably sleeved on the outer side of the slide rod (83). The fixing strip (84) is fixedly connected to the fixed seat (81). A first spring (85) is provided on the outer side of the slide rod (83). A plug (86) is fixedly connected to the bottom of the slide rod (83).

4. A microbial fermentation device with a cleaning function according to claim 3, characterized in that: A sealing sleeve (87) is fixedly sleeved on the outside of the plug (86), and the sealing sleeve (87) is slidably connected to the fixed seat (81).

5. A microbial fermentation device with a cleaning function according to claim 3, characterized in that: One end of the first spring (85) is fixedly connected to the plug (86), and the other end of the first spring (85) is fixedly connected to the fixing strip (84).

6. A microbial fermentation device with a cleaning function according to claim 1, characterized in that: The cleaning mechanism (9) includes a connecting sleeve (91), and the outer side of the output end of another drive motor (11) is fixedly connected to the connecting sleeve (91). The connecting sleeve (91) is slidably sleeved with a connecting rod (92). The outer side of the connecting rod (92) is fixedly connected with a scraper (93). The inner side of the connecting rod (92) is slidably sleeved with a guide rod (94). The guide rod (94) is fixedly connected to the connecting sleeve (91). The outer side of the guide rod (94) is provided with a second spring (95). The top of another cover plate (10) is fixedly connected with a water inlet (96).

7. A microbial fermentation device with a cleaning function according to claim 6, characterized in that: One end of the second spring (95) is fixedly connected to the connecting rod (92), and the other end of the second spring (95) is fixedly connected to the connecting sleeve (91).