A fermentation broth pre-treatment device

Abstract

The utility model provides a kind of fermentation liquor pretreatment device, including filter chamber, the bottom of filter chamber is equipped with liquid collecting chamber, the bottom of liquid collecting chamber is equipped with drain pipe, filter chamber side surface is equipped with overflow hole, overflow hole outside is equipped with the overflow pipe being connected with fermentation liquor storage tank, overflow pipe one end is connected with filter chamber fixedly, first filter screen is installed in the lower position in filter chamber, plugging plate is arranged in filter chamber for plugging overflow hole, overflow hole both sides are equipped with limit frame, plugging plate is inserted between two limit frames, limit frame is connected with filter chamber fixedly, plugging plate one side surface is equipped with the positioning member for limiting the relative position of plugging plate and limit frame, plugging plate one side is equipped with hollow floating ball, the utility model has the beneficial effects as follows: avoid fermentation liquor overflow due to operator inattention, prevent workshop environment from being contaminated, while reducing raw material loss.

Description

Technical Field

[0001] This utility model is a fermentation broth pretreatment device, belonging to the field of fermentation broth treatment technology. Background Technology

[0002] In the fermentation broth pretreatment process, preliminary screening to remove visible large impurities is a fundamental step. The core purpose is to intercept incompletely decomposed culture medium residues, agglomerated bacterial cells, and other coarse particles in the fermentation broth. This prevents these impurities from entering subsequent fine processing equipment (such as precision filters and centrifuges), causing equipment blockages or component wear, and ensuring the smooth progress of the pretreatment process. A transfer pump pumps the material from the fermentation broth storage tank to a pre-designated filtration chamber. The filtration chamber is equipped with a special filter screen that allows the fermentation broth and its fine active ingredients to pass through smoothly, while firmly intercepting large residues and bacterial cell agglomerates, achieving initial solid-liquid separation.

[0003] As the filtration process continues, large impurities accumulate on the filter screen, gradually clogging its pores. This directly leads to a continuous decrease in the efficiency of the fermentation broth, with the amount of broth flowing through the filter per unit time gradually decreasing. Because the pump continues to deliver fermentation broth to the filtration chamber, and the outflow is insufficient, the broth level inside the chamber will slowly rise. If operators, due to fatigue, inattention, or negligence, fail to notice the abnormal rise in broth level in time, and fail to take countermeasures such as stopping the machine to clean the filter screen or adjusting the pump speed, the fermentation broth will overflow from the edge or opening of the filtration chamber when the broth level exceeds its capacity. The overflowing broth not only wastes raw materials but also contaminates the production workshop floor and equipment surfaces, increasing the workload and cost of cleaning and disinfection. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fermentation broth pretreatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fermentation broth pretreatment device, comprising: The filter chamber has a liquid collection chamber at the bottom, a drain pipe at the bottom of the liquid collection chamber, an overflow hole on one side of the filter chamber, and an overflow pipe connected to the fermentation broth storage tank on the outside of the overflow hole. One end of the overflow pipe is connected and fixed to the filter chamber. The first filter screen is installed in the lower part of the filter chamber; A sealing plate is installed in the filter chamber to seal the overflow hole. Limiting frames are provided on both sides of the overflow hole. The sealing plate is inserted between the two limiting frames. The limiting frames are connected and fixed to the filter chamber. A positioning component is installed on one side of the sealing plate to limit the relative position of the sealing plate and the limiting frame. A hollow float is installed on one side of the sealing plate.

[0006] Furthermore, two sets of second filter screens are provided on the upper side of the first filter screen. The two sets of second filter screens are hinged together at their close ends. A connecting plate is installed on the side of the sealing plate away from the overflow hole. The connecting plate has an L-shaped structure. The end of the connecting plate away from the sealing plate is hinged to a second filter screen. The sum of the lengths of the two sets of second filter screens is equal to the length of the first filter screen. In the initial state, the two sets of second filter screens are horizontally arranged on the upper side of the first filter screen.

[0007] Furthermore, the horizontal part of the connecting plate has a vertical hole, a screw is inserted into the vertical hole, the upper end of the screw is connected and fixed to the hollow float, and nuts are provided on the upper and lower sides of the vertical hole, and the nuts are threadedly connected to the screw.

[0008] Furthermore, the cross-section of the limiting frame is "L" shaped, and the bottom of the limiting frame is closed.

[0009] Furthermore, a blind hole is provided on one side of the sealing plate, and the blind hole is arranged horizontally. A positioning hole that mates with the blind hole is provided on one side of the limiting frame. A positioning rod for insertion into the positioning hole is installed in the blind hole. A blocking ring is installed on one end of the positioning rod near the opening of the blind hole. The blocking ring is slidably installed in the blind hole. A compression spring in a compressed state is provided on the side of the blocking ring facing the inside of the blind hole. The compression spring is sleeved on the positioning rod and is disposed in the blind hole.

[0010] Furthermore, a sealing gasket is installed on the side of the sealing plate facing the overflow hole, and the sealing gasket is in contact with the inner wall of the filter chamber.

[0011] Furthermore, a support frame is provided on the lower side of the first filter screen. The support frame has a rectangular structure and is installed in the filter chamber.

[0012] Furthermore, the filter chamber is fitted with an overlapping edge that is connected and fixed to the filter chamber, and the overlapping edge is evenly provided with multiple fixing holes.

[0013] The beneficial effects of this utility model are: The hollow float rises and falls synchronously with the liquid level in the filter chamber. When the liquid level rises to the preset height, the hollow float moves the sealing plate upward, automatically opening the overflow hole. The fermentation liquid flows back to the fermentation liquid storage tank through the overflow pipe, avoiding overflow due to operator negligence, preventing pollution of the workshop environment, and reducing raw material loss.

[0014] When the hollow float moves the sealing plate upward, the two sets of hinged second filter screens are lifted at their closest ends under the action of buoyancy, so that a part of the first filter screen can directly contact the fermentation liquid remaining in the filter chamber. This makes it convenient to use the first filter screen, which is free of impurities, to filter the fermentation liquid and accelerate the filtration efficiency of the fermentation liquid remaining in the filter chamber. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a fermentation broth pretreatment device according to the present invention; Figure 2 This is a cross-sectional assembly diagram of a fermentation broth pretreatment device according to the present invention; Figure 3 This is a schematic diagram of the assembly of the float, sealing plate, second filter screen and first filter screen in a fermentation broth pretreatment device of this utility model; Figure 4 This is an exploded structural diagram of the positioning rod, limiting frame, and sealing plate in a fermentation broth pretreatment device of this utility model; In the picture: 1. Filter chamber; 11. Overlapping edge; 12. Liquid collection chamber; 13. Drain pipe; 14. Overflow pipe; 15. Overflow hole; 2. First filter screen; 21. Second filter screen; 22. Support frame; 3. Sealing plate; 31. Sealing gasket; 32. Limiting frame; 33. Connecting plate; 34. Hollow float; 35. Screw; 36. Nut; 37. Blind hole; 38. Positioning hole; 39. Vertical hole; 4. Positioning rod; 41. Blocking ring; 42. Compression spring. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Please see Figure 1 and Figure 2This utility model provides a technical solution: a fermentation broth pretreatment device, including a filter chamber 1, a collection chamber 12 installed at the bottom of the filter chamber 1, and a drain pipe 13 installed at the bottom of the collection chamber 12; an overflow hole 15 is opened on one side of the filter chamber 1, and an overflow pipe 14 connected to the fermentation broth storage tank is provided outside the overflow hole 15, with one end of the overflow pipe 14 connected and fixed to the filter chamber 1; an overlapping edge 11 is fitted on the filter chamber 1 and connected and fixed to the filter chamber 1, and multiple fixing holes are evenly opened on the overlapping edge 11, which facilitates limiting the position of the filter chamber 1.

[0018] See Figures 1-4 The first filter screen 2 is installed in the lower part of the filter chamber 1. A support frame 22 is provided on the lower side of the first filter screen 2. The support frame 22 has a rectangular structure and is installed in the filter chamber 1 to support the first filter screen 2. The sealing plate 3 is set in the filter chamber 1 to seal the overflow hole 15. A sealing gasket 31 is installed on the side of the sealing plate 3 facing the overflow hole 15. The sealing gasket 31 fits against the inner wall of the filter chamber 1 and improves the sealing effect of the sealing plate 3 in sealing the overflow hole 15. Limiting frames 32 are provided on both sides of the overflow hole 15. The cross-section of the limiting frame 32 is "L"-shaped and the bottom of the limiting frame 32 is closed. The limiting frame 32 is connected and fixed to the filter chamber 1. The sealing plate 3 is inserted between the two limiting frames 32 to restrict the movement trajectory of the sealing plate 3.

[0019] Two sets of second filters 21 are provided on the upper side of the first filter screen 2. The two sets of second filters 21 are hinged together at their close ends. A connecting plate 33 is installed on the side of the sealing plate 3 away from the overflow hole 15. The connecting plate 33 has an L-shaped structure. The end of the connecting plate 33 away from the sealing plate 3 is hinged to one of the second filters 21. The sum of the lengths of the two sets of second filters 21 is equal to the length of the first filter screen 2. In the initial state, the two sets of second filters 21 are horizontally arranged on the upper side of the first filter screen 2. The hollow float 34 rises and falls synchronously with the liquid level in the filter chamber 1. When the liquid level rises to the preset height, the hollow float 34 drives the sealing plate 3 to move upward, automatically opening the overflow hole 15. The fermentation liquid flows back to the fermentation liquid storage tank through the overflow pipe 14, avoiding overflow due to operator negligence, preventing pollution of the workshop environment, and reducing raw material loss. When the hollow float 34 drives the sealing plate 3 to move upward, under the action of buoyancy, the two sets of hinged second filter screens 21 are lifted at their closest ends, so that a part of the first filter screen 2 directly contacts the fermentation liquid remaining in the filter chamber 1. The first filter screen 2, which is free of impurities, filters the fermentation liquid, accelerating the filtration efficiency of the residual fermentation liquid.

[0020] See Figures 2-4The horizontal portion of the connecting plate 33 has a vertical hole 39, into which a screw 35 is inserted. The upper end of the screw 35 is connected and fixed to the hollow float 34. Nuts 36 are provided on both the upper and lower sides of the vertical hole 39, and the nuts 36 are threadedly connected to the screw 35. The screw 35 and the nut 36 cooperate with each other to assemble the hollow float 34 with the connecting plate 33. By adjusting the initial height of the hollow float 34, the initial liquid level of the overflow hole 15 can be adjusted.

[0021] See Figure 4 The sealing plate 3 has a blind hole 37 on one side, which is arranged horizontally. A limiting frame 32 has a positioning hole 38 on one side that mates with the blind hole 37. A positioning rod 4 is inserted into the blind hole 37 for insertion into the positioning hole 38. A blocking ring 41 is installed at the end of the positioning rod 4 near the opening of the blind hole 37. The blocking ring 41 is slidably installed in the blind hole 37. A compression spring 42 is provided on the side of the blocking ring 41 facing the inside of the blind hole 37. The compression spring 42 is sleeved on the positioning rod 4 and is located in the blind hole 37. During the upward movement of the sealing plate 3, when the blind hole 37 is aligned with the positioning hole 38, the positioning rod 4 is inserted into the positioning hole 38 under the action of the rebound force of the compression spring 42, restricting the position of the sealing plate 3, so that the overflow hole 15 is always in an open state before the first filter screen 2 and the second filter screen 21 are cleaned.

[0022] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fermentation broth pretreatment device, characterized in that, include: The filter chamber (1) has a liquid collection chamber (12) installed at the bottom. The liquid collection chamber (12) has a drain pipe (13) installed at the bottom. The filter chamber (1) has an overflow hole (15) on one side. An overflow pipe (14) connected to the fermentation liquid storage tank is provided outside the overflow hole (15). One end of the overflow pipe (14) is connected and fixed to the filter chamber (1). The first filter screen (2) is installed in the lower part of the filter chamber (1); A sealing plate (3) is installed in the filter chamber (1) to seal the overflow hole (15). Both sides of the overflow hole (15) are provided with a limiting frame (32). The sealing plate (3) is inserted between the two limiting frames (32). The limiting frame (32) is connected and fixed to the filter chamber (1). A positioning component for limiting the relative position of the sealing plate (3) and the limiting frame (32) is installed on one side of the sealing plate (3). A hollow float ball (34) is installed on one side of the sealing plate (3).

2. The fermentation broth pretreatment device according to claim 1, characterized in that: Two sets of second filters (21) are provided on the upper side of the first filter screen (2). The two sets of second filters (21) are hinged together at their close ends. A connecting plate (33) is installed on the side of the sealing plate (3) away from the overflow hole (15). The connecting plate (33) has an L-shaped structure. The end of the connecting plate (33) away from the sealing plate (3) is hinged to a second filter screen (21). The sum of the lengths of the two sets of second filters (21) is equal to the length of the first filter screen (2). In the initial state, the two sets of second filters (21) are horizontally arranged on the upper side of the first filter screen (2).

3. The fermentation broth pretreatment device according to claim 2, characterized in that: The horizontal part of the connecting plate (33) has a vertical hole (39), and a screw (35) is inserted into the vertical hole (39). The upper end of the screw (35) is connected and fixed to the hollow float (34). Nuts (36) are provided on the upper side and the lower side of the vertical hole (39), and the nuts (36) are threadedly connected to the screw (35).

4. The fermentation broth pretreatment device according to claim 1, characterized in that: The limiting frame (32) has an "L" shaped cross section and the bottom of the limiting frame (32) is closed.

5. The fermentation broth pretreatment device according to claim 4, characterized in that: The sealing plate (3) has a blind hole (37) on one side, which is arranged horizontally. The limiting frame (32) has a positioning hole (38) on one side that matches the blind hole (37). A positioning rod (4) for insertion into the positioning hole (38) is installed in the blind hole (37). A blocking ring (41) is installed at one end of the positioning rod (4) near the opening of the blind hole (37). The blocking ring (41) is slidably installed in the blind hole (37). A compression spring (42) in a compressed state is provided on the side of the blocking ring (41) facing the inside of the blind hole (37). The compression spring (42) is sleeved on the positioning rod (4) and is located in the blind hole (37).

6. The fermentation broth pretreatment device according to claim 5, characterized in that: The sealing plate (3) has a sealing gasket (31) installed on the side facing the overflow hole (15), and the sealing gasket (31) is in contact with the inner wall of the filter chamber (1).

7. The fermentation broth pretreatment device according to claim 1, characterized in that: The first filter screen (2) has a support frame (22) on its lower side. The support frame (22) is a rectangular structure and is installed in the filter chamber (1).

8. The fermentation broth pretreatment device according to claim 7, characterized in that: The filter chamber (1) is fitted with an overlapping edge (11) that is connected and fixed to the filter chamber (1), and multiple fixing holes are evenly opened on the overlapping edge (11).

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