Microbial fermentation device convenient to clean and filter

Abstract

The utility model discloses a microbial fermentation device convenient to clean and filter, and relates to the field of microbial fermentation, the microbial fermentation device comprises a fermentation tank, a liquid storage tank and a filter membrane used for preventing microorganisms in the fermentation tank from flowing into the liquid storage tank, the fermentation tank and the liquid storage tank are communicated with each other, and the filter membrane is detachably arranged between the fermentation tank and the liquid storage tank. The method has the effect of reducing the content of impurities in the product.

Description

Technical Field

[0001] The present application relates to the field of microbial fermentation, and in particular to a microbial fermentation device that is easy to clean and filter. Background Art

[0002] Fermentation equipment is commonly used in various fields such as food, biology, and cosmetics. By providing suitable reproduction conditions for microorganisms, the microorganisms are fermented to obtain the target product.

[0003] At present, fermentation tanks are often used in fermentation devices. When microorganisms need to be fermented, the microorganisms and liquid containing other ingredients such as nutrients are added to the fermentation tank for fermentation, and the product concentration in the fermentation tank is sampled and tested regularly. When the concentration of the effective ingredients in the fermentation liquid reaches a predetermined range, all the fermentation liquid is discharged from the fermentation tank and then filtered.

[0004] However, the microorganisms will continue to ferment the fermentation liquid during filtration. Due to the change of environmental factors during filtration, the content of impurities in the fermentation liquid will increase, increasing the difficulty of purification. If the microorganisms in the fermentation liquid are inactivated before filtration, the microorganisms will die and lyse, which will also bring impurities into the fermentation liquid. Utility Model Content

[0005] In order to improve the problems existing in the related art, the present application provides a microbial fermentation device that is easy to clean and filter.

[0006] The present application provides a microbial fermentation device that is easy to clean and filter, which adopts the following technical solution:

[0007] A microbial fermentation device convenient for cleaning and filtering comprises a fermentation tank and a liquid storage tank which are interconnected and a filter membrane for preventing microorganisms in the fermentation tank from flowing into the liquid storage tank. The filter membrane is detachably arranged between the fermentation tank and the liquid storage tank.

[0008] Optionally, a filter tube is provided on the fermentation tank, and the filter membrane is provided to cover an end of the filter tube away from the fermentation tank.

[0009] Optionally, a connecting tube is threadedly sleeved on one end of the filter tube away from the fermentation tank, the connecting tube is connected to the liquid storage tank, a retaining ring is coaxially fixed inside the connecting tube, the retaining ring is located at the end of the connecting tube away from the filter tube, and the filter membrane is located between the retaining ring and the filter tube.

[0010] Optionally, a support net for supporting the filter membrane is provided in the connecting cylinder, and the support net is located between the filter membrane and the retaining ring.

[0011] Optionally, a liquid inlet pipe is provided on the liquid storage tank, and a limiting ring is coaxially fixed on the end of the liquid inlet pipe away from the liquid storage tank, and a mounting tube is sleeved on the liquid inlet pipe, and an anti-slip ring for abutting against the limiting ring is coaxially fixed in the end of the mounting tube close to the liquid storage tank, and the end of the mounting tube away from the liquid storage tank is threadedly sleeved on the connecting tube.

[0012] Optionally, a sealing ring is provided between the limiting ring and the connecting tube.

[0013] Optionally, a first threaded structure is provided on the outer wall of the filter tube, and the connecting tube is screwed together with the filter tube through the first threaded structure. A second threaded structure is provided on the outer wall of the connecting tube, and the mounting tube is screwed together with the connecting tube through the second threaded structure. The first threaded structure and the second threaded structure have opposite rotation directions.

[0014] Optionally, a bellows is fixed to one end of the liquid inlet pipe close to the liquid storage tank, and one end of the bellows away from the liquid inlet pipe is connected to the liquid storage tank.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. When the concentration of the active ingredient is detected to be within the predetermined range, the fermentation liquid in the fermentation tank flows into the liquid storage tank through the filter membrane. During the filtration period, the unfiltered fermentation liquid remains in the fermentation tank, which avoids the increase of impurity content due to the change of the environment in which the fermentation liquid is located as much as possible;

[0017] 2. The filter membrane can be taken out through the connecting tube and the mounting tube, which makes it easy to clean and replace the filter membrane. On the other hand, it is also convenient to collect the microorganisms on the filter membrane for subsequent fermentation.

[0018] 3. The filter membrane is supported by a support net to avoid premature rupture of the filter membrane as much as possible and increase the service life of the filter membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0021] Figure 2 It is an exploded view used to show the internal structure of the installation tube and the connecting tube in the embodiment of the present application.

[0022] Figure numerals: 1. fermentation tank; 2. liquid storage tank; 3. filter tube; 4. valve; 5. bellows; 6. feed pipe; 7. connecting cylinder; 8. first thread structure; 9. second thread structure; 10. mounting cylinder; 11. retaining ring; 12. limiting ring; 13. anti-slip ring; 14. sealing ring; 15. filter membrane; 16. support net. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-2 This application is described in further detail.

[0024] The present application embodiment discloses a microbial fermentation device that is easy to clean and filter. Figure 1 and Figure 2 The microbial fermentation device for easy cleaning and filtration comprises a fermentation tank 1, a liquid storage tank 2 and a filter membrane 15 for preventing the microorganisms in the fermentation tank 1 from flowing into the liquid storage tank 2, which are interconnected. The filter membrane 15 is detachably arranged between the fermentation tank 1 and the liquid storage tank 2. Specifically, a pump body for passing the raw materials into the fermentation tank 1 is fixed on the top of the fermentation tank 1. The fermentation tank 1 is erected above the liquid storage tank 2 through a supporting device (not shown in the figure). During filtration, the fermentation liquid flows through the filter membrane 15 under the action of gravity, which improves the filtration efficiency, and does not use a pumping method to filter the fermentation liquid, which is convenient for cleaning, saves energy consumption, and protects the filter membrane 15 from being damaged due to the huge impact force of the water flow.

[0025] Reference Figure 1 , a filter tube 3 is coaxially fixed at the bottom of the fermentation tank 1, a connecting tube 7 is connected to the liquid storage tank 2 and a valve 4 is fixed in the middle, and a filter membrane 15 is arranged to cover the end of the filter tube 3 away from the fermentation tank 1. To facilitate the installation and removal of the filter membrane 15, specifically, a first threaded structure 8 is provided on the outer peripheral wall of the end of the filter tube 3 away from the fermentation tank 1, and a connecting tube 7 is threadedly sleeved on the filter tube 3 through the first threaded structure 8. A retaining ring 11 is coaxially fixed in the connecting tube 7, and the retaining ring 11 is located at the end of the connecting tube 7 away from the filter tube 3, and the filter membrane 15 is located between the retaining ring 11 and the filter tube 3. In the present application, the first threaded structure 8 is configured as a thread groove provided on the surface of the filter tube 3, and a matching threaded protrusion is provided in the connecting tube 7. In other embodiments, the first threaded structure 8 can also be a threaded protrusion, and a matching threaded groove is provided in the connecting tube 7.

[0026] During the filtration process, since the filter membrane 15 needs to bear the pressure of the fermentation liquid, in order to increase the service life of the filter membrane 15, refer to Figure 2 A supporting net 16 for supporting the filter membrane 15 is arranged in the connecting tube 7 , and the supporting net 16 is located between the filter membrane 15 and the retaining ring 11 .

[0027] When the filter membrane 15 is installed at the end of the filter tube 3 away from the fermentation tank 1, the retaining ring 11 sequentially abuts the support net 16 and the filter membrane 15 against the end of the filter tube 3 away from the fermentation tank 1, and the connecting tube 7 is relatively fixed to the filter tube 3 through the first threaded structure 8, thereby completing the fixation of the filter membrane 15 and the support net 16.

[0028] In order to facilitate the connection between the filter tube 3 equipped with the filter membrane 15 and the liquid storage tank 2, refer to Figure 1 and Figure 2 A liquid inlet pipe is provided on the top of the liquid storage tank 2, and a limiting ring 12 is coaxially fixedly sleeved on the end of the liquid inlet pipe away from the liquid storage tank 2. The inner diameter of the limiting ring 12 is consistent with the outer diameter of the liquid inlet pipe. A mounting tube 10 is sleeved on the liquid inlet pipe, and an anti-slip ring 13 for abutting against the limiting ring 12 is coaxially fixed in the end of the mounting tube 10 close to the liquid storage tank 2. The outer diameter of the anti-slip ring 13 is consistent with the inner diameter of the mounting tube 10, and its inner diameter is smaller than the outer diameter of the limiting ring 12. In order to fix the mounting tube 10 on the connecting tube 7, a second threaded structure 9 is provided on the outer peripheral wall of the connecting tube 7 away from the fermentation tank 1, and the mounting tube 10 is threadedly connected to the connecting tube 7 through the second threaded structure 9.

[0029] Further, see Figure 2 In order to seal the gap between the feed pipe 6 and the mounting tube 10, a sealing ring 14 is provided between the limiting ring 12 and the connecting tube 7. In the present application, the sealing ring 14 is an annular product made of rubber material. In other embodiments, the sealing ring 14 can also be an annular rubber bag filled with liquid.

[0030] When the filter tube 3 is connected to the feed tube 6 , the anti-drop ring 13 sequentially abuts the sealing ring 14 and the limit ring 12 against the end of the connecting tube 7 away from the fermentation tank 1 , and the mounting tube 10 is relatively fixed to the connecting tube 7 through the second threaded structure 9 .

[0031] In order to improve the convenience of installing the connecting cylinder 7 and the mounting cylinder 10, the first thread structure 8 and the second thread structure 9 are rotated in opposite directions. When the mounting cylinder 10 is threadedly connected to the connecting cylinder 7, the connecting cylinder 7 will not rotate relative to the filter tube 3 due to friction, causing the connection between the connecting cylinder 7 and the filter tube 3 to become loose.

[0032] When the filter needs to be replaced, the installation cylinder 10 and the connecting cylinder 7 need to be rotated in sequence. In order to reserve space for the rotation of the installation cylinder 10, a bellows 5 is fixed to the end of the liquid inlet pipe close to the liquid storage tank 2, and the end of the bellows 5 away from the liquid inlet pipe is connected to and fixed to the liquid storage tank 2. In other embodiments, the bellows 5 can also be a telescopic tube or other structure that is movable along the radial direction of the liquid inlet pipe.

[0033] The implementation principle of the microbial fermentation device that is easy to clean and filter in the embodiment of the present application is as follows: when the fermentation cycle reaches the end, the valve 4 is unscrewed to allow the fermentation liquid in the fermentation tank 1 to flow through the filter membrane 15 and into the liquid storage tank 2, while the fermentation liquid in the fermentation tank 1 continues to ferment, thereby avoiding as much as possible the situation where the impurity content increases due to changes in the environment in which the fermentation liquid is located. When the filter membrane 15 needs to be replaced or cleaned, the installation cylinder 10 and the connecting cylinder 7 are rotated in sequence to remove the filter membrane 15 from between the retaining ring 11 and the filter tube 3, and the cleaning and replacement of the filter membrane 15 can be completed conveniently.

[0034] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A microbial fermentation device that is easy to clean and filter, characterized in that: The invention comprises a fermentation tank and a liquid storage tank which are interconnected, and a filter membrane used for preventing microorganisms in the fermentation tank from flowing into the liquid storage tank. The filter membrane is detachably arranged between the fermentation tank and the liquid storage tank.

2. The microbial fermentation device that is easy to clean and filter according to claim 1, characterized in that: The fermentation tank is provided with a filter tube, and the filter membrane covers an end of the filter tube away from the fermentation tank.

3. The microbial fermentation device that is easy to clean and filter according to claim 2, characterized in that: A connecting tube is threadedly sleeved on one end of the filter tube away from the fermentation tank, and the connecting tube is connected to the liquid storage tank. A retaining ring is coaxially fixed in the connecting tube, and the retaining ring is located at the end of the connecting tube away from the filter tube, and the filter membrane is located between the retaining ring and the filter tube.

4. The microbial fermentation device that is easy to clean and filter according to claim 3 is characterized in that: A support net for supporting the filter membrane is arranged in the connecting cylinder, and the support net is located between the filter membrane and the retaining ring.

5. The microbial fermentation device that is easy to clean and filter according to claim 3, characterized in that: The liquid storage tank is provided with a liquid inlet pipe, and a limit ring is coaxially fixedly sleeved on the end of the liquid inlet pipe away from the liquid storage tank. A mounting tube is sleeved on the liquid inlet pipe, and an anti-slip ring for abutting against the limit ring is coaxially fixed in the end of the mounting tube close to the liquid storage tank, and the end of the mounting tube away from the liquid storage tank is threadedly sleeved on the connecting tube.

6. The microbial fermentation device that is easy to clean and filter according to claim 5, characterized in that: A sealing ring is arranged between the limiting ring and the connecting tube.

7. The microbial fermentation device that is easy to clean and filter according to claim 5, characterized in that: A first threaded structure is provided on the outer wall of the filter tube, and the connecting tube is screwed together with the filter tube through the first threaded structure. A second threaded structure is provided on the outer wall of the connecting tube, and the mounting tube is screwed together with the connecting tube through the second threaded structure. The first threaded structure and the second threaded structure have opposite rotation directions.

8. The microbial fermentation device that is easy to clean and filter according to claim 5, characterized in that: A bellows is fixed to one end of the liquid inlet pipe close to the liquid storage tank, and one end of the bellows away from the liquid inlet pipe is communicated with the liquid storage tank.

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