Bacillus subtilis fermentation tank

By using a heating coil and sliding rod structure in the Bacillus subtilis fermenter to control the uniformity of oxygen temperature, the problem of inconsistent temperature before oxygen entry was solved, achieving uniform dissolved oxygen and cleanliness inside the tank, thus improving fermentation efficiency and automation.

CN224062781UActive Publication Date: 2026-03-31SUZHOU CAMBRIAN BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The inconsistent temperature before oxygen is introduced into the existing Bacillus subtilis fermenter leads to uneven dissolved oxygen, which affects bacterial growth and metabolism.

Method used

It adopts a heating coil and sliding rod structure to control the temperature uniformity of oxygen in the fermenter, ensuring that the oxygen temperature is consistent with the temperature inside the tank when it enters, and uses a slag discharge mechanism to automatically remove sediment.

Benefits of technology

It improves the uniformity of dissolved oxygen, reduces thermal stress caused by temperature differences, promotes microbial growth and metabolism, enhances fermentation efficiency, maintains a clean environment inside the tank, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bacillus fermentation, and discloses a bacillus subtilis fermentation tank which comprises a first round tank, a second fixing plate is fixedly connected to the middle of the left side of the first round tank, a second round tank is fixedly connected to the top of the second fixing plate, and a heating ring is fixedly connected to the outer wall of the second round tank. A second round cover is fixedly connected to the top of the second round tank, a fixing column is fixedly connected to the top of the second round cover, a third fixing plate is fixedly connected to the outer wall of the fixing column, a fixing strip is fixedly connected to the middle of the rear side of the third fixing plate, and a second motor is fixedly connected to the front side of the fixing strip; the output end of the second motor is fixedly connected with a rotating plate. According to the device, oxygen is discharged into the second round tank, the heating ring is started, the rotating plate rotates to drive the sliding rod to move left and right, and when the sliding rod moves leftwards, the first pipe cover is driven to be separated from the pipe opening, so that the temperature of the oxygen can be controlled to be consistent with the temperature of the first round tank.
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Description

Technical Field

[0001] This utility model relates to the field of bacterial fermentation technology, and in particular to a Bacillus subtilis fermenter. Background Technology

[0002] Bacillus subtilis is a Gram-positive, spore-forming bacterium widely found in soil. It has strong environmental adaptability, can withstand high temperatures, dryness, and ultraviolet radiation. Bacillus subtilis is commonly used in agriculture as a biological pesticide and soil conditioner, which can inhibit the growth of harmful microorganisms and promote plant growth. Its secreted enzymes are widely used in the food processing, textile, and pharmaceutical industries. In addition, Bacillus subtilis also has applications in environmental protection, such as wastewater treatment and degradation of toxic substances. The production of Bacillus subtilis is usually obtained through fermentation, thus requiring a Bacillus subtilis fermentation tank.

[0003] Currently, Bacillus subtilis fermenters on the market mainly consist of a tank body, a stirring device, an aeration device, a temperature control device, a pH control device, and an exhaust device. In use, the culture medium and Bacillus subtilis are first inoculated into the tank body, the stirring device is activated to mix them evenly, the aeration device provides oxygen to support bacterial growth, the temperature control device maintains a suitable temperature, and the pH control device adjusts the pH to ensure an optimal growth environment. However, during aeration, oxygen comes from outside the tank, and inconsistent temperatures can lead to uneven dissolved oxygen, affecting bacterial growth and metabolism, and even causing localized overheating, inhibiting bacterial reproduction and product formation. To solve these problems, existing technologies optimize the stirring device by using a high-efficiency, adjustable-speed stirrer to improve liquid flow and ensure uniform oxygen distribution within the fermenter. They also enhance the accuracy of the temperature control device and use temperature sensors to monitor and adjust the temperature in real time, ensuring uniform temperature and dissolved oxygen levels within the fermenter and promoting bacterial growth and metabolism. However, because the temperature of oxygen before entering the fermenter is still inconsistent, uneven dissolved oxygen still occurs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a Bacillus subtilis fermenter, which aims to improve the problem that the temperature of oxygen is still inconsistent before entering the fermenter in the prior art, and there is still uneven dissolved oxygen.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a Bacillus subtilis fermenter, comprising a cylindrical tank, a fixing plate two fixedly connected to the middle left side of the cylindrical tank, a cylindrical tank two fixedly connected to the top of the fixing plate two, a heating coil fixedly connected to the outer wall of the cylindrical tank two, a cylindrical cover two fixedly connected to the top of the cylindrical tank two, a fixing column fixedly connected to the top of the cylindrical cover two, a fixing plate three fixedly connected to the outer wall of the fixing column, a fixing strip fixedly connected to the middle rear side of the fixing plate three, a motor two fixedly connected to the front side of the fixing strip, a rotating plate fixedly connected to the output end of the motor two, a sliding rod slidably connected to the top front side of the fixing plate three, the inner rear side of the sliding rod slidably connected to the inner front side of the rotating plate, a pipe cover one fixedly connected to the bottom of the sliding rod, long strips fixedly connected to both the front and rear sides of the outer wall of the pipe cover one, a pipe one slidably connected to an adjacent side of the long strip, and a slag discharge mechanism provided at the bottom of the cylindrical tank one for slag discharge.

[0006] As a further description of the above technical solution:

[0007] The slag discharge mechanism includes a ring, a fixing plate is fixedly connected to the left side of the ring, the upper middle part of the inner wall of the ring is fixedly connected to the bottom of the round tank, a motor is fixedly connected to the right side of the fixing plate, a round rod is fixedly connected to the output end of the motor, a round cover is fixedly connected to the outer wall of the round rod, and the left side of the outer wall of the round rod is rotatably connected to the left side of the inner wall of the ring.

[0008] As a further description of the above technical solution:

[0009] A long block is fixedly connected to the upper right side of the sliding rod, and the left and right sides of the long block are slidably connected to the top of the inner wall of the second round cover.

[0010] As a further description of the above technical solution:

[0011] A second tube is fixedly connected to the upper left side of the second round tank, and a second tube cover is slidably connected to the left side of the second tube.

[0012] As a further description of the above technical solution:

[0013] A round cover is fixedly connected to the top of the round can, and a round handle is fixedly connected to the top of the round cover.

[0014] As a further description of the above technical solution:

[0015] A viewing plate is fixedly connected to the front side of the first cylindrical tank, and the left side of the outer wall of the first tube is fixedly connected to the lower middle part of the inner wall of the second cylindrical tank.

[0016] As a further description of the above technical solution:

[0017] The outer right side of the tube is fixedly connected to the upper left side of the cylindrical tank, and the middle part of the outer wall of the sliding rod is slidably connected to the bottom of the inner wall of the cylindrical cover.

[0018] As a further description of the above technical solution:

[0019] The fixing strip is L-shaped, and multiple strips are symmetrically distributed.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, during use, oxygen is first discharged into the second round tank. Then, the second pipe cap is inserted into the second pipe, and the heating coil is turned on. When the temperature in the second round tank is the same as the temperature in the first round tank, the rotating plate rotates, causing the sliding rod to move left and right. The left and right movement of the sliding rod causes the first pipe cap to disengage from and re-engage with the pipe opening. When the sliding rod moves to the left, it causes the first pipe cap to disengage from the pipe opening. At this time, oxygen can be discharged into the first round tank. This allows the oxygen temperature to be controlled to be the same as the temperature of the first round tank, improving the uniformity of dissolved oxygen.

[0022] 2. In this utility model, when the round cover needs to be opened after fermentation, the motor fixed in the fixed plate is started first. After the motor starts, it will drive the round rod to rotate. The rotation of the round rod will drive the round cover to rotate, thereby discharging the waste residue in the round tank. This helps to remove the deposited residue and unconsumed substrate, keep the tank environment clean, and avoid impurities affecting subsequent operations. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the front side of a round tank of a Bacillus subtilis fermentation tank proposed in this utility model;

[0024] Figure 2 This is a partial structural breakdown diagram of the round tank of a Bacillus subtilis fermentation tank proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of a round tank of Bacillus subtilis fermentation tank proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the annular structure of a Bacillus subtilis fermenter proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the sliding rod of a Bacillus subtilis fermenter proposed in this utility model;

[0028] Figure 6 This is a schematic diagram of the three-part structure of the fixing plate of the Bacillus subtilis fermenter proposed in this utility model.

[0029] Legend:

[0030] 1. Round tank one; 2. Slag discharge mechanism; 201. Ring; 202. Fixing plate one; 203. Motor one; 204. Round rod; 205. Round cover one; 3. Fixing plate two; 4. Round tank two; 5. Heating ring; 6. Fixing plate three; 7. Fixing strip; 8. Motor two; 9. Rotating plate; 10. Sliding rod; 11. Pipe one; 12. Fixing column; 13. Pipe cover one; 14. Long strip; 15. Round cover two; 16. Long block; 17. Pipe cover two; 18. Pipe two; 19. Perspective plate; 20. Round cover three; 21. Round handle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 3 Appendix Figure 5 and attached Figure 6This utility model provides an embodiment of a Bacillus subtilis fermentation tank, comprising a cylindrical tank 1, with a fixing plate 2 3 fixedly connected to the middle left side of the cylindrical tank 1. The cylindrical tank 1 is fixedly connected to the middle left side of the cylindrical tank 1 by a robust fixing plate 2 3. A cylindrical tank 2 4 is fixedly connected to the top of the fixing plate 2 3, and the top of the fixing plate 2 3 is connected to another cylindrical tank 2 4. A heating coil 5 is fixedly connected to the outer wall of the cylindrical tank 2 4, and a heating coil is fixedly installed on the outer wall of the cylindrical tank 2 4. 5. A round cover 15 is fixedly connected to the top of round can 2 4. A fixing post 12 is fixedly connected to the top of round cover 2 15. A fixing plate 6 is fixedly connected to the outer wall of fixing post 12. A fixing strip 7 is fixedly connected to the middle of the rear side of fixing plate 3 6. A motor 2 8 is fixedly connected to the front side of fixing strip 7. The fixing strip 7 is fixedly connected to the middle of the rear side of fixing plate 3 6. A motor 2 8 is fixedly connected to the front side of the fixing strip 7. A rotating plate 9 is fixedly connected to the output end of motor 2 8. A sliding rod 10 is slidably connected to the top front side of the fixing plate 3 6. The inner rear wall of the sliding rod 10 is slidably connected to the inner front wall of the rotating plate 9. A pipe cap 13 is fixedly connected to the bottom of the sliding rod 10. The inner rear wall of the sliding rod 10 can be slidably connected to the inner front wall of the rotating plate 9. Long strips 14 are fixedly connected to the front and rear sides of the outer wall of the cover 13. A tube 11 is slidably connected to the adjacent side of the long strip 14. A tube cover 13 is fixedly connected to the bottom of the sliding rod 10. Long strips 14 are fixedly connected to the front and rear sides of the outer wall of the tube cover 13. A tube 11 can be slidably connected to the adjacent side of the long strip 14. A slag discharge mechanism 2 is set at the bottom of the round tank 1. The slag discharge mechanism 2 is specifically used to discharge the waste slag generated during the fermentation process.

[0033] Please see the appendix Figure 1 and attached Figure 4The slag discharge mechanism 2 includes a ring 201. The upper part of the inner wall of the ring 201 is fixedly connected to the bottom of the cylindrical tank 1. The upper part of the inner wall of the ring 201 is fixedly connected to the bottom of the cylindrical tank 1. A fixing plate 202 is fixedly connected to the left side of the ring 201. A motor 203 is fixedly connected to the right side of the fixing plate 202. The left side of the ring 201 is fixedly connected to the fixing plate 202. The right side of plate 202 is firmly fixedly connected to motor 203. A round rod 204 is fixedly connected to the output end of motor 203. A round cover 205 is fixedly connected to the outer wall of the round rod 204. A round rod 204 is fixedly connected to the output end of motor 203. The round cover 205 is fixedly connected to the outer wall of the round rod 204. The left side of the outer wall of the round rod 204 is rotatably connected to the left side of the inner wall of the ring 201. The left side of the outer wall of the round rod 204 is rotatably connected to the left side of the inner wall of the ring 201.

[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 A long block 16 is fixedly connected to the upper right side of the sliding rod 10. The left and right sides of the long block 16 are slidably connected to the top of the inner wall of the second round cover 15. A long block 16 is fixedly connected to the upper right side of the sliding rod 10. The left and right sides of the long block 16 are slidably connected to the top of the inner wall of the second round cover 15. A round cover 20 is fixedly connected to the top of the first round can 1. A round handle 21 is fixedly connected to the top of the third round cover 20. A round cover 20 is fixedly connected to the top of the third round cover 20. A round handle 21 is fixedly connected to the top of the third round cover 20. The right side of the outer wall of the first tube 11 is fixedly connected to the upper left side of the first round can 1. The middle of the outer wall of the sliding rod 10 is slidably connected to the bottom of the inner wall of the second round cover 15. The right side of the outer wall of the first tube 11 is fixedly connected to the upper left side of the first round can 1. The middle of the outer wall of the sliding rod 10 is slidably connected to the bottom of the inner wall of the second round cover 15.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 6A tube 18 is fixedly connected to the upper left side of the round can 2 4. A tube cap 17 is slidably connected to the left side of the tube 18. A tube 18 is fixedly connected to the upper left side of the round can 2 4. A tube cap 17 is slidably connected to the left side of the tube 18. The fixing strip 7 is L-shaped. Multiple strips 14 are symmetrically distributed. A transparent plate 19 is fixedly connected to the front side of the round can 1 1. A transparent plate 19 is fixedly connected to the front side of the round can 1 1. The left side of the outer wall of the tube 11 is fixedly connected to the lower middle part of the inner wall of the round can 2 4. The left side of the outer wall of the tube 11 is fixedly connected to the lower middle part of the inner wall of the round can 2 4.

[0036] Working principle: In use, firstly, oxygen is discharged into round tank 4. Then, tube cap 17 is inserted into tube 18. Heating coil 5 is turned on to heat round tank 4. When the temperature in round tank 4 is the same as that in round tank 1, it is left to stand for a while. At this time, the oxygen temperature in round tank 4 is consistent. Then, motor 8, which is fixed in front of fixing bar 7, is started. After motor 8 starts, it will drive rotating plate 9 to rotate. Rotating plate 9 will drive sliding rod 10 to move left and right. Moving sliding rod 10 left and right will drive tube cap 13 to disengage from and adhere to the tube opening. When sliding rod 10 moves to the left, it will drive tube cap 13 to disengage from the tube opening. At this time, oxygen can be discharged into round tank 1. This way, the oxygen temperature can be controlled to be consistent with the temperature of round tank 1, improving the uniformity of dissolved oxygen. It helps to avoid thermal stress caused by temperature difference, reduce damage to the cells and metabolic abnormalities, and ensure that oxygen is dissolved more effectively in the culture medium, optimize the growth and metabolism of microorganisms, and improve fermentation efficiency.

[0037] After fermentation, when it is necessary to open the round cover 205, first start the motor 203 fixed in the fixing plate 202. After the motor 203 starts, it will drive the round rod 204 to rotate. The rotation of the round rod 204 will drive the round cover 205 to rotate, thereby discharging the waste residue in the round tank 1. This helps to remove the deposited residue and unconsumed substrate, keep the tank environment clean, and avoid impurities affecting subsequent operations. Since it is a bottom discharge, the operation is simple and efficient, which can improve the degree of automation of the operation and reduce labor costs.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fermentation tank of Bacillus subtilis comprising a round tank (1) characterized in that: The left side of the middle part of the round tank one (1) is fixedly connected with the fixed plate two (3), the top of the fixed plate two (3) is fixedly connected with the round tank two (4), the outer wall of the round tank two (4) is fixedly connected with the heating ring (5), the top of the round tank two (4) is fixedly connected with the round cover two (15), the top of the round cover two (15) is fixedly connected with the fixed column (12), the outer wall of the fixed column (12) is fixedly connected with the fixed plate three (6), the rear side of the middle part of the fixed plate three (6) is fixedly connected with the fixed strip (7), the front side of the fixed strip (7) is fixedly connected with the motor two (8), the output end of the motor two (8) is fixedly connected with the rotating plate (9), the front side top of the fixed plate three (6) is slidably connected with the sliding rod (10), the rear side inner wall of the sliding rod (10) is slidably connected with the front side inner wall of the rotating plate (9), the bottom of the sliding rod (10) is fixedly connected with the pipe cover one (13), the outer wall of the pipe cover one (13) is fixedly connected with the long strip (14) on the front and rear sides, the adjacent side of the long strip (14) is slidably connected with the pipe one (11), the bottom of the round tank one (1) is provided with the slag discharging mechanism (2), and the slag discharging mechanism (2) is used for discharging slag.

2. The Bacillus subtilis fermenter according to claim 1, characterized in that: The slag discharging mechanism (2) comprises a circular ring (201), the inner wall of the middle part of the circular ring (201) is fixedly connected with the bottom of the round tank one (1), the left side of the circular ring (201) is fixedly connected with the fixed plate one (202), the right side of the fixed plate one (202) is fixedly connected with the motor one (203), the output end of the motor one (203) is fixedly connected with the circular rod (204), the outer wall of the circular rod (204) is fixedly connected with the circular cover one (205), and the outer wall of the left side of the circular rod (204) is rotatably connected with the inner wall of the left side of the circular ring (201).

3. The Bacillus subtilis fermenter according to claim 1, characterized in that: The right side of the middle part of the sliding rod (10) is fixedly connected with the long block (16), and the left and right sides of the long block (16) are slidably connected with the inner wall top of the circular cover two (15).

4. The Bacillus subtilis fermenter according to claim 1, characterized in that: The left side of the middle part of the circular tank two (4) is fixedly connected with the pipe two (18), and the left side of the pipe two (18) is slidably connected with the pipe cover two (17).

5. The Bacillus subtilis fermenter according to claim 1, characterized in that: The top of the circular tank one (1) is fixedly connected with the circular cover three (20), and the top of the circular cover three (20) is fixedly connected with the circular handle (21).

6. The Bacillus subtilis fermenter according to claim 1, characterized in that: The front side of the circular tank one (1) is fixedly connected with the perspective plate (19), and the outer wall of the left side of the pipe one (11) is fixedly connected with the inner wall of the middle lower part of the circular tank two (4).

7. The Bacillus subtilis fermenter according to claim 1, characterized in that: The outer wall of the right side of the pipe one (11) is fixedly connected with the left side of the middle part of the circular tank one (1), and the outer wall of the middle part of the sliding rod (10) is slidably connected with the inner wall bottom of the circular cover two (15).

8. The Bacillus subtilis fermenter according to claim 1, characterized in that: The fixed strip (7) is L-shaped, and a plurality of long strips (14) are symmetrically distributed.