Fermentation device for preparing a medicinal and edible composition

Abstract

The utility model discloses a kind of preparation fermentation devices of medicine-food homologous composition, including tank body and the stirring main shaft being arranged in the tank body, the tank body outer wall is provided with heat exchange system, including upper heat preservation shell and heat exchange pipe.The device also includes demister, and the demister includes shell and defoaming piece.The utility model relates to the technical field of fermentation of composition, strong suction effect is generated when impeller rotates, cooperate into flared mouth at the bottom of pipeline, can suck into shell in tank floating scum, after floating scum is thrown to mesh cover by impeller, by impact, coalescence broken into droplet, backflow to tank by bottom back-liquid, solve the problem that traditional sawtooth type demister is not complete to medicine-food homologous composition floating scum capture.Protracted gas in defoaming process enters heat preservation clamping cavity by first back gas pipe, and the air or oxygen temperature that enters into tank body is close to composition temperature with the air inlet in helical heat exchange pipe, significantly improve the microbial activity stability.

Description

Technical Field

[0001] This utility model relates to the field of composition fermentation technology, specifically to a fermentation device for preparing medicinal and edible compositions. Background Technology

[0002] Food-medicine homology compositions are a special type of raw material that combines medicinal value with edible function. Their fermentation process exhibits unique characteristics due to the complexity of the raw material composition and the abundance of active substances. Compared with ordinary fermented materials (such as single grains, fruits and vegetables), food-medicine homology compositions usually contain a large number of bioactive components such as polysaccharides, saponins, and flavonoids. These components produce a large number of surfactants during microbial metabolism, which makes it very easy to form stable and continuous foam in the fermentation system.

[0003] In traditional fermentation equipment, the defoaming process often relies on serrated demisters. Serrated demisters cut the foam with rotating serrated blades. However, because the foam of the food-medicine homology composition is tough and has strong adhesion, a single serrated structure is difficult to completely break the foam, and the defoaming efficiency does not match the foam generation rate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a fermentation device for preparing medicinal and edible homologous compositions, which solves the problem that existing fermentation tanks cannot effectively remove excessive foam generated by the compositions.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a fermentation device for preparing medicinal and edible homologous substances, comprising a tank and a stirring shaft disposed in the tank, wherein a gas distributor is inserted into the tank and a gas inlet nozzle is provided at the gas inlet end of the gas distributor; The outer wall of the tank is provided with a heat exchange system, including an upper insulation shell and a heat exchange tube. The upper insulation shell and the tank form an insulation cavity. The heat exchange tube is set in the insulation cavity and coiled around the outer wall of the tank. The two ends of the heat exchange tube are respectively connected to a gas distributor and a gas injection nozzle. The device also includes a demister, which includes a shell and a demister component. The top of the shell is fixed to the top of the inner cavity of the tank via a connecting seat. An inlet pipe is provided at the bottom of the shell. The stirring shaft passes through the shell and the inlet pipe. An impeller is provided on the stirring shaft. The impeller is located inside the shell. The inlet of the impeller faces the inlet pipe, and the outlet faces the demister component. The top of the shell is connected to the heat-insulating cavity via a first return air pipe; The device also includes a return air pipeline, including an annular pipe, which is connected to the heat-insulating cavity through a second return air pipeline, and the inner wall of the annular pipe has air jet holes.

[0006] Preferably, the demister includes multiple annular mesh covers, which are arranged sequentially around the impeller circumferentially inside the housing. A partition cavity is formed between two adjacent annular mesh covers and between the outermost annular mesh cover and the housing. The first return air pipe is connected to the outermost partition cavity.

[0007] Preferably, the lower wall of the housing has multiple return holes, which are located at the bottom of each of the partition chambers.

[0008] Preferably, a mesh plate is provided at the return hole.

[0009] Preferably, the demister further includes helical blades disposed on the stirring shaft, the helical blades being located inside the inlet pipe.

[0010] Preferably, the bottom of the inlet pipe expands outward to form a flared nozzle.

[0011] Preferably, the first return air pipe is connected between the top of the shell and the insulation cavity, and the second return air pipe is connected between the insulation cavity and the annular pipe, the annular pipe being located below the demister.

[0012] Preferably, there are multiple jet holes, which are equidistantly arranged on the inner wall of the annular tube circumferentially.

[0013] Preferably, the heat exchange tube is a spiral coil.

[0014] The beneficial effects of this utility model are as follows: By using the fermentation device for preparing medicinal and edible homologous composition provided by this utility model, the impeller generates a strong suction effect when rotating. Combined with the flared nozzle at the bottom of the inlet pipe, the foam in the tank can be sucked into the shell. The annular mesh cover adopts a multi-layer nested design, and the partition cavities between adjacent mesh covers form a multi-stage defoaming channel. After the foam is thrown to the mesh cover by the impeller, it is broken into droplets through collision and aggregation, and then flows back into the tank through the bottom return hole. This solves the problem that the traditional sawtooth defoamer cannot completely capture the foam of medicinal and edible homologous composition.

[0015] The gas extracted during the defoaming process enters the insulation jacket through the first return gas pipe and exchanges heat with the incoming air in the spiral heat exchange tube, so that the temperature of the air or oxygen entering the tank is close to the temperature of the composition, which significantly improves the stability of microbial activity.

[0016] After heat exchange, the gas is ejected from the jet holes of the annular tube, forming an annular airflow barrier. This causes the dispersed scum inside the tank to gather below the demister, solving the problems of scattered scum distribution and dead corners in traditional devices, and achieving synergistic effect between demistering and gas distribution. Attached Figure Description

[0017] Figure 1 This is the front view of the present utility model; Figure 2This utility model Figure 1 Sectional view along line AA; Figure 3 This is a schematic diagram of the demister structure of this utility model; Figure 4 This is a schematic diagram of the gas flow direction of this utility model.

[0018] Explanation of the reference numerals in the figure: 1. Tank body, 2. Agitator shaft, 3. Gas distributor, 4. Air inlet nozzle, 5. Demister, 51. Connecting seat, 52. Shell, 53. Inlet pipe, 54. Flared nozzle, 55. Annular mesh cover, 56. Liquid return hole, 57. Spiral blade, 58. Mesh plate, 59. Separating chamber, 6. First return gas pipe, 7. Upper insulation shell, 8. Annular pipe, 9. Insulation jacket, 10. Heat exchange pipe, 11. Jet nozzle, 12. Second return gas pipe, 13. Impeller. Detailed Implementation

[0019] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The technical solutions of the present invention 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 invention, and not all embodiments. Various changes can be made to the implementation scheme as long as the effects of the present invention can be achieved.

[0021] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0022] like Figure 1 As shown in the embodiment of this application, a fermentation device for preparing a food-medicine homology composition is proposed, including a tank 1 and a stirring shaft 2 disposed inside the tank 1. The stirring shaft 2 is installed at the center of the tank 1, and its main function is to drive the stirring paddle to stir the composition inside the tank 1 by rotating, thereby achieving stirring and mixing of the fermentation material. In addition, it also drives the impeller 13 and the spiral blade 57 to move. The stirring shaft 2 is driven by a motor.

[0023] In addition, refer to Figure 1In this embodiment, a gas distributor 3 is inserted into the tank 1, and an air inlet 4 is provided at the gas inlet end of the gas distributor 3. The function of the gas distributor 3 is to evenly distribute purified sterile air or oxygen into the fermentation material, providing sufficient oxygen for the growth and reproduction of microorganisms. The gas distributor 3 consists of a vertical pipe and an annular pipe connected below the vertical pipe, with the annular pipe located below the stirring paddle. The wall of the annular pipe has a large number of tiny pores to ensure that the gas can be dispersed in the material in the form of microbubbles, thereby improving the gas utilization rate.

[0024] Reference Figures 1 to 3 The device also includes a demister 5, which comprises a housing 52 and a demister component. The top of the housing 52 is fixed to the top of the inner cavity of the tank 1 via a connecting seat 51. An inlet pipe 53 is provided at the bottom of the housing 52, and the stirring shaft 2 passes through the housing 52 and the inlet pipe 53. During implementation, a sealed bearing is provided at the connection between the stirring shaft 2 and the housing 52. Furthermore, an impeller 13 is provided on the stirring shaft 2, located inside the housing 52. The inlet of the impeller 13 faces the inlet pipe 53, and the outlet faces the demister component.

[0025] In practice, when the impeller 13 is driven to rotate by the stirring shaft 2, the foam on the surface of the fermentation material in the suction tank 1 enters the shell 52, and the foam is thrown at high speed onto the annular mesh cover 55 by the rotation of the impeller 13 for physical defoaming.

[0026] Furthermore, such as Figure 3 As shown, the bottom of the inlet pipe 53 expands outward to form a flared nozzle 54. The design of the flared nozzle 54 increases the suction area of ​​the foam, making it easier for the foam to enter the demister 5.

[0027] In addition, such as Figure 3 As shown, the demister 5 also includes a spiral blade 57 disposed on the stirring shaft 2, and the spiral blade 57 is located inside the inlet pipe 53. When the spiral blade 57 is driven to rotate by the stirring shaft 2, the spiral blade 57 contacts the foam, causing the foam to be compressed in the spiral track of the spiral blade 57, thus performing preliminary demisting. Furthermore, the spiral track of the spiral blade 57 introduces the foam into the housing 52, and the auxiliary impeller 13 draws the foam into the housing 52.

[0028] In one implementation, such as Figure 3As shown, the demister includes multiple annular mesh covers 55, which are arranged sequentially around the impeller 13 within the housing 52. Separation chambers 59 are formed between adjacent annular mesh covers 55 and between the outermost annular mesh cover 55 and the housing 52. The first return air pipe 6 connects to the outermost separation chamber 59. During operation, the rotation of the impeller 13 generates centrifugal force, which throws the foam at high speed from the outlet. Affected by centrifugal force, the foam passes through the annular mesh covers 55 sequentially during its ejection, and physical demisting occurs upon contact with the annular mesh covers 55.

[0029] Furthermore, such as Figure 3 As shown, the lower wall of the shell 52 has multiple return holes 56, which are located at the bottom of each partition chamber 59. During implementation, the rotating impeller 13 throws the scum at high speed onto the annular mesh cover 55 to remove it. The droplets formed after the scum breaks down drip into the tank 1 through the return holes 56. Furthermore, a mesh plate 58 is installed at the return holes 56. When residual scum passes through the return holes 56, it is partially affected by the airflow generated by the rotating impeller 13, causing the residual scum to pass through the mesh plate 58 for final defoaming.

[0030] In one embodiment, the top of the housing 52 is connected to the insulation cavity 9 via a first return air pipe 6. It should be noted that the first return air pipe 6 connects the top of the housing 52 and the insulation cavity 9, while the second return air pipe 12 connects the insulation cavity 9 and the annular pipe 8. Furthermore, the annular pipe 8 is located below the demister 5. The airflow generated by the rotation of the impeller 13 fills the housing 52. Part of the airflow, carrying residual foam, flows out through the mesh plate 58, while part of the airflow enters the insulation cavity 9 through the first return air pipe 6, contacting the heat exchange tubes 10 within the insulation cavity 9 to exchange heat with the air or oxygen inside.

[0031] like Figure 1 and Figure 4 As shown, a heat exchange system is provided on the outer wall of the tank 1, including an upper insulation shell 7 and heat exchange tubes 10. The upper insulation shell 7 and the tank 1 form an insulation cavity 9. The heat exchange tubes 10 are spiral coils, which are arranged inside the insulation cavity 9 and coiled around the outer wall of the tank 1. The two ends of the heat exchange tubes 10 are connected to a gas distributor 3 and a gas inlet 4, respectively. The upper insulation shell 7 and the heat exchange tubes 10 are used to exchange heat and raise the temperature of the air or oxygen before it enters the gas distributor 3, so that the temperature of the gas entering the tank 1 is close to the temperature inside the tank 1, ensuring that the fermentation process takes place at a suitable temperature and preventing the entering gas from lowering the temperature of the fermentation composition and affecting its fermentation process. It should be noted that the temperature inside the upper insulation shell 7 comes from inside the tank 1.

[0032] In addition, such as Figure 1 and Figure 4As shown, the device also includes a return gas pipeline, comprising an annular pipe 8. The annular pipe 8 is connected to the insulation jacket 9 via a second return gas pipe 12. The inner wall of the annular pipe 8 has multiple air jet holes 11, equidistantly spaced along the circumference of the inner wall of the annular pipe 8. Gas entering the insulation jacket 9 is re-injected into the tank 1 through the air jet holes 11 on the inner wall of the annular pipe 8, maintaining the gas pressure inside the tank 1 and simultaneously blowing away scum, causing it to gather towards the demister 5, thus enhancing the scum's gathering effect. The first return gas pipe 6, the insulation jacket 9, and the annular pipe 8 form a gas loop, preventing gas leakage from the tank 1 and ensuring the internal pressure of the fermenter.

[0033] This embodiment also proposes a working principle: when the stirring shaft 2 drives the impeller 13 to rotate, the gas and foam in the tank 1 are drawn into the shell 52, and the foam is thrown onto the annular mesh cover 55 by the impeller 13 for defoaming. The droplets formed after the foam is broken fall into the tank 1 of the fermentation tank through the return hole 56. At the same time, part of the drawn gas enters the heat-insulating jacket 9 through the first return gas pipe 6 and exchanges heat with the heat exchange pipe 10 to preheat the air entering the gas distributor 3; the gas after heat exchange in the heat-insulating jacket 9 is then sprayed into the fermentation tank through the second return gas pipe 12 and the annular pipe 8, blowing the foam to gather at the defoamer 5 to form a gas circuit, thereby achieving the purpose of heating the gas temperature in the gas distributor 3 and self-priming defoaming.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fermentation apparatus for preparing a medicinal and edible compound, comprising a tank and a stirring shaft disposed within the tank, wherein a gas distributor is inserted into the tank, and a gas inlet nozzle is provided at the gas inlet end of the gas distributor, characterized in that: The outer wall of the tank is provided with a heat exchange system, including an upper insulation shell and a heat exchange tube. The upper insulation shell and the tank form an insulation cavity. The heat exchange tube is set in the insulation cavity and coiled around the outer wall of the tank. The two ends of the heat exchange tube are respectively connected to a gas distributor and a gas injection nozzle. The device also includes a demister, which includes a shell and a demister component. The top of the shell is fixed to the top of the inner cavity of the tank via a connecting seat. An inlet pipe is provided at the bottom of the shell. The stirring shaft passes through the shell and the inlet pipe. An impeller is provided on the stirring shaft. The impeller is located inside the shell. The inlet of the impeller faces the inlet pipe, and the outlet faces the demister component. The top of the shell is connected to the heat-insulating cavity via a first return air pipe; The device also includes a return air pipeline, including an annular pipe, which is connected to the heat-insulating cavity through a second return air pipeline, and the inner wall of the annular pipe has air jet holes.

2. The fermentation apparatus for preparing a medicinal and edible compound according to claim 1, characterized in that: The demister includes multiple annular mesh covers, which are arranged sequentially around the impeller within the housing. A partition cavity is formed between two adjacent annular mesh covers and between the outermost annular mesh cover and the housing. The first return air pipe is connected to the outermost partition cavity.

3. The fermentation apparatus for preparing a medicinal and edible compound according to claim 2, characterized in that: The lower wall of the housing has multiple return holes, which are located at the bottom of each of the partition chambers.

4. The fermentation apparatus for preparing a medicinal and edible compound according to claim 3, characterized in that: A mesh plate is installed at the return hole.

5. The fermentation apparatus for preparing a medicinal and edible compound according to claim 1, characterized in that: The demister also includes spiral blades mounted on the stirring shaft, which are located inside the inlet pipe.

6. The fermentation apparatus for preparing a medicinal and edible compound according to claim 1, characterized in that: The bottom of the inlet pipe expands outward to form a flared nozzle.

7. The fermentation apparatus for preparing a medicinal and edible compound according to claim 1, characterized in that: The first return air pipe is connected between the top of the shell and the insulation cavity, and the second return air pipe is connected between the insulation cavity and the annular pipe, which is located below the demister.

8. The fermentation apparatus for preparing a medicinal and edible compound according to claim 1, characterized in that: The jet holes are multiple and are equidistantly arranged on the inner wall of the annular tube around the circumference.

9. The fermentation apparatus for preparing a medicinal and edible compound according to claim 8, characterized in that: The heat exchange tube is a spiral coil.

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