Filtering device for a fermentation broth

Abstract

This invention discloses a filtration device for fermentation broth, comprising a filter body with a through-type rotating groove inside. A rotating block is rotatably connected within the rotating groove, and the outer circumference of the rotating block is sealed to the inner wall of the rotating groove. An upper end cap is fixedly mounted on the upper end of the filter body, and a lower end cap is fixedly mounted on the lower end. An arc-shaped groove communicating with the rotating groove is provided inside the filter body. An inlet hole communicating with the arc-shaped groove is provided at the front end of the filter body, and an outlet hole communicating with the arc-shaped groove is provided at the rear end. A discharge port communicating with the rotating groove is provided at the right end of the filter body. Six filter components are evenly spaced along the circumference inside the rotating block, and the rotation direction of the filter components is opposite to the flow direction of the fermentation broth within the arc-shaped groove. A drive component is provided on the filter body to drive the rotating block and thus the filter components to rotate. This filtration device is not only simple in structure but also significantly improves filtration efficiency.

Description

Technical Field

[0001] This invention belongs to the field of acrylamide production technology, specifically a filtration device for fermentation broth. Background Technology

[0002] Acrylamide is a white crystalline chemical substance and a raw material for the production of polyacrylamide. Polyacrylamide is mainly used in oil and gas extraction, papermaking, water treatment, mineral washing, metallurgy, superabsorbent resins, and adhesives. Acrylonitrile, the raw material, reacts with water at around 20°C using a bio-enzyme catalyst (cultured in a fermentation chamber, produced in a fermentation workshop) to generate an acrylamide aqueous solution. Further processes such as refining, concentration, crystallization, centrifugation, and drying yield the acrylamide crystalline product. The fermentation broth formed after fermentation in a fermentation tank using the inoculum culture requires filtration. Existing fermentation broth filtration devices use a pump to draw the broth and filter it through a filter basket. While this filtration device can filter the fermentation broth, cleaning the filtered impurities requires stopping the broth supply and manually removing the filter basket, resulting in low filtration efficiency. Summary of the Invention

[0003] To address the problems mentioned in the background section, the present invention provides a filtration device for fermentation broth.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a filtration device for fermentation broth, comprising a filter body, wherein a rotating groove is provided through the filter body, and a rotating block is rotatably connected within the rotating groove, wherein the outer circumference of the rotating block is sealed to the inner sidewall of the rotating groove; an upper end cap is fixedly provided at the upper end of the filter body, and a lower end cap is fixedly provided at the lower end; an arc-shaped groove communicating with the rotating groove is provided within the filter body; an inlet hole communicating with the arc-shaped groove is provided at the front end of the filter body, and an outlet hole communicating with the arc-shaped groove is provided at the rear end; the axis of the inner arc surface of the arc-shaped groove is coaxial with the axis of the rotating block; a discharge port communicating with the rotating groove is provided at the right end of the filter body; six filter components are evenly spaced along the circumferential direction within the rotating block, the rotation direction of the filter components being opposite to the flow direction of the fermentation broth within the arc-shaped groove; and a drive component is provided on the filter body for driving the rotating block to rotate the filter components.

[0005] In a further technical solution, when the rotating block drives the filter assembly into the arc-shaped groove, the filter plate in the filter assembly extends out of the rotating block along the radial direction of the rotating block and abuts against the inner arc surface of the arc-shaped groove. When the rotating block drives the filter assembly away from the arc-shaped groove, the filter plate in the filter assembly retracts into the rotating block along the radial direction of the rotating block.

[0006] When the rotating block drives the filter assembly to the discharge port, the pusher plate in the filter assembly extends along the movement direction of the filter plate and the arc surface at the end of the pusher plate is coplanar with the circumferential side surface of the rotating block; when the rotating block drives the filter assembly away from the discharge port, the pusher plate in the filter assembly retracts into the rotating block along the movement direction of the filter plate and the pusher plate and the filter plate form a storage trough for impurities on the outside of the rotating block.

[0007] In a further technical solution, the drive assembly includes a geared motor fixedly installed on the left side of the filter body. A first gear is fixedly provided at the upper end of the motor. A convex shaft extending upward from the end cover is provided at the upper end of the rotating block. A second gear located above the upper end cover and meshing with the first gear is fixedly provided at the upper end of the convex shaft. The geared motor drives the first gear to rotate, and the rotation of the first gear drives the second gear to rotate.

[0008] In a further technical solution, the diameter of the first gear is smaller than the diameter of the second gear.

[0009] In a further technical solution, the filter assembly includes a filter plate and a pusher plate. The rotating block has a radial groove, and the filter plate is slidably connected to the radial groove along the radial direction of the rotating block. A first spring is provided in the radial groove to force the filter plate to extend out of the radial groove. A front inclined surface is provided between the front end of the arc-shaped groove and the rotating groove, and a rear inclined surface is provided between the rear end and the rotating groove. When the rotating block drives the filter plate to move and the filter plate abuts against the front inclined surface, the filter plate retracts into the rotating block under the action of the front inclined surface as the rotating block rotates. When the rotating block drives the filter plate to move and the filter plate abuts against the rear inclined surface, the filter plate extends out of the rotating block through the rear inclined surface under the action of the first spring as the rotating block rotates.

[0010] In a further technical solution, the upper end cover is provided with an upper large arc surface and an upper small arc surface that are coaxial with the rotating block, as well as two upper transition surfaces for connecting the upper large arc surface and the upper small arc surface; the near end of the filter plate is provided with an upwardly extending upper protrusion. When the rotating block drives the filter plate to the discharge port, the upper protrusion abuts against the upper small arc surface. When the rotating block drives the filter plate away from the discharge port, the upper protrusion moves away from the upper small arc surface. When the filter plate moves to the arc-shaped groove, the upper protrusion abuts against the upper large arc surface.

[0011] In a further technical solution, the pusher plate is slidably connected in a radial groove and arranged side by side with the filter plate. A second spring is provided in the radial groove to force the pusher plate to extend out of the radial groove. The lower end cover is provided with a lower large arc surface and a lower small arc surface coaxial with the rotating block, as well as a lower transition surface and a lower second transition surface for connecting the lower large arc surface and the lower small arc surface. The proximal end of the pusher plate is provided with a downwardly extending lower protrusion. When the rotating block drives the filter plate away from the outlet, the lower protrusion abuts against the lower small arc surface after passing the lower second transition surface, and the pusher plate retracts into the radial groove. The pusher plate and the filter plate form a storage trough at the distal end of the radial groove. When the rotating block drives the pusher plate to the outlet, the lower protrusion abuts against the lower large arc surface after passing the lower transition surface under the action of the second spring. The arc surface at the end of the pusher plate is coplanar with the circumferential side surface of the rotating block, and the pusher plate pushes the impurities in the storage trough into the outlet.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] When using this invention, you only need to control the rotating block to drive the filter plate and the pusher plate to rotate, and then control the fermentation liquid to enter the inlet hole to filter impurities from the fermentation liquid and remove the filtered impurities, which greatly facilitates the use and can effectively improve the filtration efficiency of the fermentation liquid. Attached Figure Description

[0014] Figure 1-2 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 3 This is the front view of the present invention;

[0016] Figure 4 This is a top view of the present invention;

[0017] Figure 5 for Figure 3 A cross-sectional view along the AA direction;

[0018] Figure 6 for Figure 4 Cross-sectional view along the BB direction;

[0019] Figure 7 This is a top view of the present invention with the second gear omitted;

[0020] Figure 8 This is a bottom view of the present invention with the second gear omitted;

[0021] Figure 9 This is a perspective view of the present invention with the lower end cap omitted. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 9 As shown, this embodiment provides a filtration device for fermentation broth, including a filter body 1. The filter body 1 has a through-hole rotating groove 1a. A rotating block 2 is rotatably connected within the rotating groove 1a, and the outer circumference of the rotating block 2 is sealed to the inner wall of the rotating groove 1a. An upper end cover 3 is fixedly provided at the upper end of the filter body 1, and a lower end cover 4 is fixedly provided at the lower end. An arc-shaped groove 1b communicating with the rotating groove 1a is provided inside the filter body 1. The front end of the filter body 1 has a section communicating with the arc-shaped groove 1b. The filter body 1 has an inlet 1c and an outlet 1d at the rear end that communicates with the arc-shaped groove 1b. The axis of the inner arc surface of the arc-shaped groove 1b is coaxial with the axis of the rotating block 2. The right end of the filter body 1 has a discharge port 1e that communicates with the rotating groove 1a. Six filter components are evenly spaced along the circumference inside the rotating block 2. The rotation direction of the filter components is opposite to the flow direction of the fermentation liquid in the arc-shaped groove 1b. The filter body 1 is equipped with a drive component for driving the rotating block 2 to rotate the filter components.

[0024] In this embodiment, when the rotating block 2 drives the filter assembly into the arc-shaped groove 1b, the filter plate 5 in the filter assembly extends radially out of the rotating block 2 and abuts against the inner arc surface of the arc-shaped groove 1b. When the rotating block 2 drives the filter assembly away from the arc-shaped groove 1b, the filter plate 5 in the filter assembly retracts radially into the rotating block 2. When the rotating block 2 drives the filter assembly to the discharge port 1e, the pusher plate 6 in the filter assembly extends along the movement direction of the filter plate 5, and the arc surface at the end of the pusher plate 6 is coplanar with the circumferential side surface of the rotating block 2. When the rotating block 2 drives the filter assembly away from the discharge port 1e, the pusher plate 6 in the filter assembly retracts along the movement direction of the filter plate 5 into the rotating block 2, and the pusher plate 6 and the filter plate 5 form a storage tank 201 for holding impurities on the outside of the rotating block 2.

[0025] In this embodiment, the drive assembly includes a reduction motor 7 fixedly mounted on the left side of the filter body 1. A first gear 8 is fixedly mounted on the upper end of the motor. A convex shaft 2a extending upward from the end cover is provided on the upper end of the rotating block 2. A second gear 9, located above the upper end cover 3 and meshing with the first gear 8, is fixedly mounted on the upper end of the convex shaft 2a. The reduction motor 7 drives the first gear 8 to rotate, and the rotation of the first gear 8 drives the second gear 9 to rotate. The diameter of the first gear 8 is smaller than the diameter of the second gear 9.

[0026] In this embodiment, the filter assembly includes a filter plate 5 and a pusher plate 6. The rotating block 2 has a radial groove 2b. The filter plate 5 is slidably connected to the radial groove 2b along the radial direction of the rotating block 2. A first slide rod 10 is fixedly installed in the radial groove 2b along the radial direction of the rotating block 2, and the filter plate 5 is slidably connected to the first slide rod 10. A first spring 11 is provided in the radial groove 2b to force the filter plate 5 to extend out of the radial groove 2b. The first spring 11 is sleeved on the first slide rod 10. The arc-shaped cut... A front inclined surface 101 is provided between the front end of the groove 1b and the rotating groove 1a, and a rear inclined surface 102 is provided between the rear end and the rotating groove 1a. When the rotating block 2 drives the filter plate 5 to move and the filter plate 5 abuts against the front inclined surface 101, the filter plate 5 retracts into the rotating block 2 under the action of the front inclined surface 101 as the rotating block 2 rotates. When the rotating block 2 drives the filter plate 5 to move and the filter plate 5 abuts against the rear inclined surface 102, the filter plate 5 extends out of the rotating block 2 through the rear inclined surface 102 under the action of the first spring 11 as the rotating block 2 rotates. The upper end cover 3 is provided with an upper large arc surface 3a and an upper small arc surface 3b that are coaxial with the rotating block 2, as well as two upper transition surfaces 3c for connecting the upper large arc surface 3a and the upper small arc surface 3b; the filter plate 5 is provided with an upwardly extending upper protrusion 5a at its proximal end. When the rotating block 2 drives the filter plate 5 to move to the discharge port 1e, the upper protrusion 5a abuts against the upper small arc surface 3b. When the rotating block 2 drives the filter plate 5 away from the discharge port 1e, the upper protrusion 5a moves away from the upper small arc surface 3b. When the filter plate 5 moves to the arc-shaped groove 1b, the upper protrusion 5a abuts against the upper large arc surface 3a.

[0027] In this embodiment, the pusher plate 6 is slidably connected within the radial groove 2b and arranged parallel to the filter plate 5. A second slide rod 12, parallel to the first slide rod 10, is fixedly installed within the radial groove 2b. The pusher plate 6 is slidably connected to the second slide rod 12. A second spring 13, forcing the pusher plate 6 to extend out of the radial groove 2b, is provided within the radial groove 2b. The second spring 13 is sleeved on the second slide rod 12. The lower end cover 4 contains a lower large arc surface 4a and a lower small arc surface 4b, coaxial with the rotating block 2, and a lower transition surface 4c and a lower second transition surface 4d connecting the lower large arc surface 4a and the lower small arc surface 4b. The pusher plate 6 is slidably connected within the radial groove 2. The plate 6 has a downwardly extending lower protrusion 6a at its proximal end; when the rotating block 2 drives the filter plate 5 away from the discharge port 1e, the lower protrusion 6a abuts against the lower small arc surface 4b after passing the lower second transition surface 4d, and the pusher plate 6 retracts into the radial groove 2b. The pusher plate 6 and the filter plate 5 form a storage trough 201 at the distal end of the radial groove 2b; when the rotating block 2 drives the pusher plate 6 to move to the discharge port 1e, the lower protrusion 6a abuts against the lower large arc surface 4a after passing the lower transition surface 4c under the action of the second spring 13. The arc surface at the end of the pusher plate 6 is coplanar with the circumferential side surface of the rotating block 2, and the pusher plate 6 pushes the impurities in the storage trough 201 into the discharge port 1e.

[0028] When the filtration device for the fermentation broth in this embodiment is working, firstly, the reduction motor 7 drives the first gear 8 to rotate. When the first gear 8 rotates, it drives the second gear 9 to rotate. The second gear 9 drives the rotating block 2 to rotate at a speed of one revolution per minute through the cam shaft 2a. Then, the pump controls the pump to send the extracted fermentation broth into the inlet hole 1c. Since there are six filter components on the outer circumference of the rotating block 2, when the rotating block 2 rotates, at least one filter component is located in the arc-shaped groove 1b and between the inlet hole 1c and the outlet hole 1d. As the fermentation broth enters the arc-shaped groove 1b through the inlet hole 1c, the filter plate 5 in the arc-shaped groove 1b abuts against the inner arc surface of the arc-shaped groove 1b under the action of the first spring 11. This causes the fermentation broth to pass through the filter plate 5 in the filter components and flow out through the outlet hole 1d. When the fermentation broth passes through the filter plate 5, the impurities in the fermentation broth are filtered out on the filter plate 5. When the rotating block 2 drives the filter plate 5 away from the arc-shaped groove 1b, the filter plate 5 retracts into the radial groove 2b after passing the first inclined surface 101 and compresses the first spring 11. At this time, the filter plate 5 moves relative to the pusher plate 6. The impurities filtered out on the filter plate 5 enter the storage tank 201 under the scraping action of the pusher plate 6. As the rotating block 2 drives the filter plate 5 and the pusher plate 6 to the discharge port 1e, the upper protrusion 5a abuts against the upper small arc surface 3b. At this time, the filter plate 5 remains in the position of retracting into the radial groove 2b. At the same time, the lower protrusion 6a abuts against the lower large arc surface 4a after passing the next transition surface 4c under the action of the second spring 13. The arc surface at the end of the pusher plate 6 is coplanar with the circumferential side surface of the rotating block 2. The pusher plate 6 pushes the impurities in the storage tank 201 into the discharge port 1e.

[0029] When the rotating block 2 drives the filter plate 5 and the pusher plate 6 away from the discharge port 1e, the lower protrusion 6a abuts against the lower small arc surface 4b after passing the lower transition surface 4d. The pusher plate 6 retracts into the radial groove 2b, and the pusher plate 6 and the filter plate 5 form a storage trough 201 for accommodating impurities at the distal end of the radial groove 2b. When the rotating block 2 drives the filter plate 5 into the arc-shaped groove 1b, the filter plate 5 extends out of the radial groove 2b under the action of the first spring 11 and abuts against the inner arc surface of the arc-shaped groove 1b. Because the lower protrusion 6a abuts against the lower small arc surface 4b, the pusher plate 6 remains retracted into the radial groove 2b. This forms a cycle of filtering and removing impurities.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for fermentation broth, characterized in that, The filter includes a filter body with a through-groove. A rotating block is rotatably connected within the groove, and the outer circumference of the rotating block is sealed to the inner wall of the groove. The filter body has an upper end cap fixed to its upper end and a lower end cap fixed to its lower end. An arc-shaped groove communicating with the through-groove is located within the filter body. The front end of the filter body has an inlet port communicating with the arc-shaped groove, and the rear end has an outlet port communicating with the arc-shaped groove. The axis of the inner arc surface of the arc-shaped groove is coaxial with the axis of the rotating block. The right end of the filter body has a discharge port communicating with the through-groove. Six filter components are evenly spaced along the circumference within the rotating block, and the rotation direction of the filter components is opposite to the flow direction of the fermentation broth within the arc-shaped groove. The filter body is equipped with a drive assembly for driving the rotating block to rotate the filter components. When the rotating block drives the filter assembly into the arc-shaped groove, the filter plate in the filter assembly extends out of the rotating block along the radial direction of the rotating block and abuts against the inner arc surface of the arc-shaped groove. When the rotating block drives the filter assembly away from the arc-shaped groove, the filter plate in the filter assembly retracts into the rotating block along the radial direction of the rotating block. When the rotating block drives the filter assembly to the discharge port, the pusher plate in the filter assembly extends along the movement direction of the filter plate and the arc surface at the end of the pusher plate is coplanar with the circumferential side surface of the rotating block; when the rotating block drives the filter assembly away from the discharge port, the pusher plate in the filter assembly retracts into the rotating block along the movement direction of the filter plate and the pusher plate and the filter plate form a storage tank for impurities on the outside of the rotating block.

2. The filtration device for fermentation broth according to claim 1, characterized in that, The drive assembly includes a geared motor fixedly installed on the left side of the filter body. A first gear is fixedly provided at the upper end of the motor. A convex shaft extending upward from the end cover is provided at the upper end of the rotating block. A second gear located above the upper end cover and meshing with the first gear is fixedly provided at the upper end of the convex shaft. The geared motor drives the first gear to rotate, and the rotation of the first gear drives the second gear to rotate.

3. The filtration device for fermentation broth according to claim 2, characterized in that, The diameter of the first gear is smaller than the diameter of the second gear.

4. A filtration device for fermentation broth according to claim 1, characterized in that, The filter assembly includes a filter plate and a pusher plate. The rotating block has a radial groove, and the filter plate is slidably connected to the radial groove along the radial direction of the rotating block. A first spring is provided in the radial groove to force the filter plate to extend out of the radial groove. A front inclined surface is provided between the front end of the arc-shaped groove and the rotating groove, and a rear inclined surface is provided between the rear end and the rotating groove. When the rotating block drives the filter plate to move and the filter plate abuts against the front inclined surface, the filter plate retracts into the rotating block under the action of the front inclined surface as the rotating block rotates. When the rotating block drives the filter plate to move and the filter plate abuts against the rear inclined surface, the filter plate extends out of the rotating block through the rear inclined surface under the action of the first spring as the rotating block rotates.

5. A filtration device for fermentation broth according to claim 4, characterized in that, The upper end cover has an upper large arc surface and an upper small arc surface that are coaxial with the rotating block, as well as two upper transition surfaces for connecting the upper large arc surface and the upper small arc surface; the filter plate has an upwardly extending upper protrusion at its proximal end. When the rotating block drives the filter plate to the discharge port, the upper protrusion abuts against the upper small arc surface. When the rotating block drives the filter plate away from the discharge port, the upper protrusion moves away from the upper small arc surface. When the filter plate moves to the arc-shaped groove, the upper protrusion abuts against the upper large arc surface.

6. A filtration device for fermentation broth according to claim 4, characterized in that, The pusher plate is slidably connected in the radial groove and arranged side by side with the filter plate. The radial groove is provided with a second spring for forcing the pusher plate to extend out of the radial groove. The lower end cover is provided with a lower large arc surface and a lower small arc surface coaxial with the rotating block, as well as a lower transition surface and a lower second transition surface for connecting the lower large arc surface and the lower small arc surface. The proximal end of the pusher plate is provided with a downwardly extending lower protrusion. When the rotating block drives the filter plate away from the discharge port, the lower protrusion abuts against the lower small arc surface after passing the lower second transition surface, and the pusher plate retracts into the radial groove. The pusher plate and the filter plate form a storage trough at the distal end of the radial groove. When the rotating block drives the pusher plate to the discharge port, the lower protrusion abuts against the lower large arc surface after passing the lower transition surface under the action of the second spring. The arc surface at the end of the pusher plate is coplanar with the circumferential side surface of the rotating block, and the pusher plate pushes the impurities in the storage trough into the discharge port.

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