Biological pharmaceutical preparation wastewater purification treatment equipment

Abstract

This invention discloses a wastewater purification and treatment device for biopharmaceutical preparation, relating to the field of biopharmaceutical preparation. The device includes a purification tank with a removal plate inside. The removal plate has a mesh-like surface design, and a connecting plate is fixed to its center. An external pipe is connected above the connecting plate and is interconnected with an external air supply structure. An aeration mechanism is connected below the external pipe to introduce gas from the external pipe into the purification tank. A translation mechanism is connected above the removal plate to control its movement within the purification tank. This wastewater purification and treatment device for biopharmaceutical preparation uses the removal plate to clean solid impurities from the purification tank, pushing them to the plate surface for further treatment. The movement of the removal plate within the purification tank also agitates the water. Simultaneously, the aeration mechanism moves with the removal plate, adjusting the aeration position to ensure more uniform and effective water treatment.

Description

Technical Field

[0001] This invention relates to the field of biopharmaceutical preparation technology, specifically to a wastewater purification and treatment device for biopharmaceutical preparation. Background Technology

[0002] In the production and processing of biological agents, such as S-adenosylmethionine and S-adenosylmethionine p-toluenesulfonic acid sulfate, wastewater is often generated during the processing. Since the pollutants in the wastewater can cause pollution if discharged directly, it can be purified by wastewater purification equipment. Currently, the most commonly used purification methods are biological treatment methods such as aeration.

[0003] Prior art 1 (Chinese patent application number CN202211412360.3, published January 13, 2023) discloses a wastewater purification tank, including a tank body, a cover plate, and a mixing device. The mixing device includes a mixing motor, a rotating shaft, paddles, an aeration assembly, and auxiliary components. After wastewater enters the tank, if there are too many impurities in the wastewater or too many solid drugs added, the reaction caused by the convection of the wastewater will be very slow and difficult. In this case, the mixing motor can be controlled to rotate, thereby driving the rotating shaft to rotate, which in turn drives the paddles to rotate, stirring the mixture of wastewater and drugs, accelerating the reaction speed, and improving the mixing efficiency. This makes it easy to use and maintain. At the same time, during wastewater purification, even when there are too many solid impurities in the wastewater inside the tank or too many solid drugs added, it can still ensure stable mixing and purification of the wastewater and improve the purification efficiency. Prior art 2 (application number...) (Chinese Patent CN202010356594.5, published on August 25, 2020) A wastewater treatment aeration device includes a base. A hinge shaft is mounted on the upper end of the base, and a connecting rod is hinged to the hinge shaft. A mixing tank is fixedly connected to the end of the connecting rod. A bracket is mounted on the base, and a top plate is fixedly connected to the top of the bracket. A support rod is mounted on the top plate, and a motor is fixedly connected to the end of the support rod. A shaft is fixedly connected to the output end of the motor, and a disc is mounted at the end of the shaft. A second hinge shaft is mounted on the lower end of the disc, and a rotating rod is hinged to the second hinge shaft. A through hole is provided on the top plate, through which the rotating rod passes, and a third hinge shaft is mounted at its end. The third hinge shaft is hinged to the top wall of the mixing tank. By setting the rotating rod and starting the motor, the shaft can drive the disc to rotate, which in turn causes the rotating rod to shake the mixing tank, thus agitating the wastewater inside the mixing tank and ensuring thorough mixing of the wastewater and oxygen, thereby improving the wastewater purification effect.

[0004] While current purification equipment can treat pollutants in wastewater through aeration, impurities or sediments in the wastewater can affect the reaction efficiency and hinder the mixing of subsequent reagents. Some reagents may also produce solid impurities after reacting, which can reduce the contact between oxygen and wastewater and lower the purification effect. Summary of the Invention

[0005] The purpose of this invention is to provide a wastewater purification and treatment device for biological pharmaceutical preparation, in order to solve the problem mentioned in the background art that although the current purification equipment can treat pollutants in wastewater through aeration, the impurities or precipitates in the wastewater will affect the reaction effect and are not conducive to the mixing of subsequent pharmaceutical agents.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wastewater purification treatment device for biopharmaceutical preparation, comprising a purification tank, wherein a removal plate is provided inside the purification tank, the surface of the removal plate has a mesh structure design, a connecting plate is fixed in the middle of the removal plate, and an external pipe is connected above the connecting plate. The external pipe is connected to an external air supply structure, and an aeration mechanism is connected below the external pipe to introduce gas from the external pipe into the purification tank. A translation mechanism is connected above the removal plate to control the movement of the removal plate within the purification tank. An impurity collection box is provided inside the purification tank, and the impurity collection boxes are symmetrically distributed about the center of the purification tank. The inner side of the impurity collection box has an open structure design. An installation groove is provided at the bottom of the purification tank to provide installation space for the bottom of the impurity collection box. A shielding mechanism is provided on the inner side of the impurity collection box to shield the impurities inside the impurity collection box.

[0007] To further optimize this technical solution, the impurity collection box and the purification pool are detachably connected, allowing the impurity collection box to be removed from the inside of the purification pool.

[0008] To further optimize this technical solution, an installation block is fixed to the outside of the impurity collection box, and the installation block and the purification tank form a concave-convex fit structure. An installation component penetrates through the middle of the installation block, and a connecting groove is opened above the purification tank. A threaded connection is formed between the connecting groove and the installation component.

[0009] To further optimize this technical solution, the translation mechanism includes a drive block, a reciprocating lead screw, and a motor;

[0010] The drive block is fixed above the impurity removal plate, and the drive block and the purification tank form a left-right sliding structure.

[0011] The reciprocating lead screw passes through the drive block and forms a threaded connection between the drive block;

[0012] The motor is connected to the reciprocating screw to control the rotation of the reciprocating screw.

[0013] This technical solution is further optimized by including the aeration mechanism's delivery pipe, connecting pipe, and aeration port;

[0014] The conveying pipe is located inside the connecting plate and is connected to the outer connecting pipe;

[0015] A connecting pipe is fixed at the lower end of the conveying pipe, and the connecting pipe is located below the impurity removal plate, and the interior of the connecting pipe is connected to the conveying pipe.

[0016] Aeration ports are evenly distributed on the surface of the connecting pipe.

[0017] To further optimize this technical solution, the shielding mechanism includes a scraper, a protective net, and a vertical movement control mechanism;

[0018] A scraper is installed inside the impurity collection box, and the scraper and the impurity collection box form an up-and-down sliding structure.

[0019] A protective net is fixed below the scraper to cover the opening of the impurity collection box;

[0020] The vertical movement control mechanism is connected to the scraper and the protective net to control the movement of the scraper and the protective net.

[0021] To further optimize this technical solution, guide blocks are fixed on both the front and rear sides of the scraper, and the guide blocks and the impurity collection box form an up-and-down sliding structure.

[0022] To further optimize this technical solution, the vertical movement control mechanism includes an upper pull rope, a winding shaft, a torsion spring, a rotating shaft, and an automatic drive mechanism;

[0023] The pull rope is fixed above the scraper.

[0024] The winding shaft is rotatably mounted above the impurity collection box, and the upper end of the winding shaft is connected to the upper pull rope;

[0025] A torsion spring is installed at the end of the take-up shaft to provide rotational restoring force for the take-up shaft;

[0026] A rotating shaft is rotatably installed below the impurity collection box, and the rotating shaft is connected to the lower end of the protective net.

[0027] An automatic drive mechanism is located on the outside of the rotating shaft to drive its movement.

[0028] To further optimize this technical solution, the automatic drive mechanism includes a gear, a rack, a movable block, a return spring, a release mechanism, and a trigger block;

[0029] The gear is fixed to the end of the rotating shaft;

[0030] A rack is positioned below the gear and forms a meshing connection between the gears;

[0031] The movable block is located on the outside of the rack, and the movable block and the impurity collection box form a left-right sliding structure;

[0032] The return spring is fixed to the outer end of the movable block to provide thrust to the movable block;

[0033] The release mechanism, located on the outside of the rack, controls the translation of the rack;

[0034] The trigger block is fixed below the impurity removal plate. When the impurity removal plate is close to the impurity collection box, it fits into contact with the moving block.

[0035] To further optimize this technical solution, the release mechanism includes a first magnet, a second magnet, and a third magnet;

[0036] The first magnet is fixed in the middle of the rack, and the rack and the movable block form a back-and-forth sliding structure;

[0037] The second magnet is fixed at the bottom of the purification tank, and the second magnet and the first magnet are arranged with their magnetic poles facing each other.

[0038] The third magnet is fixed inside the impurity collection box, and the third magnet and the first magnet are arranged with opposite magnetic poles facing each other.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] (1) The impurities and solid matter in the purification tank can be cleaned by the impurity removal plate and pushed to the surface of the impurity removal plate for subsequent treatment. The movement of the impurity removal plate in the purification tank can also play a role in stirring the water. At the same time, the aeration mechanism can move with the impurity removal plate to adjust the aeration position so that the water can be treated more evenly and effectively.

[0041] (2) Impurities on the surface of the impurity removal plate can be collected through the impurity collection box, so that the impurities can be collected on both sides of the purification tank, reducing the impurity content of the water in the purification tank, and facilitating the full contact and full reaction of the water, the reaction agent and the gas.

[0042] (3) The impurity collection box can be detached and installed in the purification tank. The impurity collection box can be removed from the purification tank to clean the impurities. The impurity removal plate can move back and forth in the horizontal direction, thereby continuously filtering out impurities in the water.

[0043] (4) The scraper can scrape the impurities on the surface of the impurity removal plate into the impurity collection box. The opening of the impurity collection box is blocked by the protective net to prevent the impurities from returning to the water in the purification tank. At the same time, the scraper can move automatically with the movement of the impurity removal plate to achieve automatic collection of impurities.

[0044] (5) The rotation of the rotating shaft can be controlled by the meshing of the toothed plate and the gear to roll up the protective net. After the protective net is rolled up, the scraper moves down to the lowest position. At the same time, the toothed plate moves under the attraction between the magnets and releases the meshing with the gear, so that the torsion spring can drive the winding shaft to rotate, providing an upward pulling force for the scraper to scrape off impurities on the surface of the impurity removal plate. Attached Figure Description

[0045] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0046] Figure 2 This is a schematic diagram of the three-dimensional structure of the purification tank of the present invention;

[0047] Figure 3 This is a three-dimensional structural diagram of the impurity collection box of the present invention;

[0048] Figure 4 This is a side view of the impurity removal plate structure of the present invention;

[0049] Figure 5 This is a schematic diagram of the three-dimensional structure of the driving block of the present invention;

[0050] Figure 6 This is a schematic diagram of the main cross-section of the present invention;

[0051] Figure 7 This is a schematic diagram of the side cross-section of the impurity removal plate of the present invention;

[0052] Figure 8 This is a schematic diagram of the side cross-section structure of the scraper of the present invention;

[0053] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point a;

[0054] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point b;

[0055] Figure 11 This is a schematic diagram of the gear structure of the present invention;

[0056] Figure 12 This is a schematic diagram of the internal structure of the active block of the present invention;

[0057] Figure 13 This is a top-section schematic diagram of the rack block structure of the present invention.

[0058] In the diagram: 1. Purification tank; 2. Impurity collection box; 3. Mounting slot; 4. Mounting block; 5. Mounting component; 6. Connecting slot; 7. Impurity removal plate; 8. Connecting plate; 9. Conveying pipe; 10. Connecting pipe; 11. Aeration port; 12. External connecting pipe; 13. Drive block; 14. Reciprocating screw; 15. Motor; 16. Scraper; 1601. Guide block; 17. Protective net; 18. Pull rope; 19. Rewinding shaft; 20. Torsion spring; 21. Rotating shaft; 22. Gear; 23. Rack; 24. Movable block; 25. Return spring; 26. First magnet; 27. Second magnet; 28. Third magnet; 29. ​​Trigger block. Detailed Implementation

[0059] 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.

[0060] Please see Figures 1-13 The present invention provides the following technical solution: a wastewater purification and treatment device for biological reagent preparation, including a purification tank 1;

[0061] Example 1: The present invention provides the following technical solution, disclosing that a purification tank 1 is provided with a removal plate 7 inside, the surface of the removal plate 7 is designed with a mesh structure, and a connecting plate 8 is fixed in the middle of the removal plate 7. An external pipe 12 is connected above the connecting plate 8. The external pipe 12 is connected to an external air supply structure. An aeration mechanism is connected below the external pipe 12 to introduce the gas in the external pipe 12 into the purification tank 1. A translation mechanism is connected above the removal plate 7 to control the movement of the removal plate 7 in the purification tank 1. An impurity collection box 2 is provided inside the purification tank 1, and the impurity collection boxes 2 are symmetrically distributed about the center of the purification tank 1. The inner side of the impurity collection box 2 is designed with an open structure. An installation groove 3 is provided at the bottom of the purification tank 1 to provide installation space for the bottom of the impurity collection box 2. A shielding mechanism is provided on the inner side of the impurity collection box 2 to shield the impurities in the impurity collection box 2.

[0062] When in use, wastewater is added to the interior of the purification tank 1, and the external pipe 12 is connected to the oxygen supply channel to send oxygen into the purification tank 1 to mix with the wastewater. Alternatively, biological agents can be added to the purification tank 1 to react with the water as needed to improve the purification effect. During the purification process, by controlling the horizontal movement of the impurity removal plate 7, impurities in the purification tank 1 can be pushed into the impurity collection box 2 on the side for collection, reducing the impurity content in the water of the purification tank 1 and improving the mixing effect of the gas.

[0063] Example 2: Based on Example 1, a detachable connection is disclosed between the impurity collection box 2 and the purification tank 1, allowing the impurity collection box 2 to be removed from the inside of the purification tank 1. A mounting block 4 is fixed to the outside of the impurity collection box 2, and the mounting block 4 and the purification tank 1 form a convex-concave fit structure. A mounting component 5 penetrates the middle of the mounting block 4. A connecting groove 6 is provided above the purification tank 1, and a threaded connection is formed between the connecting groove 6 and the mounting component 5. The translation mechanism includes a drive block 13, a reciprocating screw 14, and a motor 15. The drive block 13 is fixed above the impurity removal plate 7, and the drive block 13 and the purification tank 1 are connected in a detachable manner. The pool 1 forms a left-right sliding structure. The reciprocating screw 14 passes through the drive block 13 and forms a threaded connection between the drive block 13 and the drive block 13. The motor 15 is connected to the reciprocating screw 14 to control the rotation of the reciprocating screw 14. The aeration mechanism includes a conveying pipe 9, a connecting pipe 10, and an aeration port 11. The conveying pipe 9 is located inside the connecting plate 8 and is connected to the outer pipe 12. The connecting pipe 10 is fixed at the lower end of the conveying pipe 9 and is located below the impurity removal plate 7. The interior of the connecting pipe 10 is connected to the conveying pipe 9. The aeration ports 11 are evenly distributed on the surface of the connecting pipe 10.

[0064] Gas enters the connecting pipe 10 through the conveying pipe 9 and is discharged outward through the aeration port 11, mixing with the water. The impurity collection box 2 can be disassembled from the purification tank 1. By disconnecting the mounting part 5 and the connecting groove 6, the impurity collection box 2 can be pulled upward from the purification tank 1 for easy processing of impurities. When it is necessary to control the movement of the impurity removal plate 7, the reciprocating screw 14 can be rotated by the motor 15, so that the reciprocating screw 14 drives the drive block 13 to move back and forth, and the drive block 13 drives the impurity removal plate 7 to move and process the impurities.

[0065] Example 3: Based on Example 1, a shielding mechanism is disclosed, including a scraper 16, a protective net 17, and a vertical movement control mechanism. The scraper 16 is disposed inside the impurity collection box 2, and the scraper 16 and the impurity collection box 2 form an up-and-down sliding structure. The protective net 17 is fixed below the scraper 16 to shield the opening of the impurity collection box 2. The vertical movement control mechanism is connected to the scraper 16 and the protective net 17 to control the movement of the scraper 16 and the protective net 17. Guide blocks 1601 are fixed on both the front and rear sides of the scraper 16, and the guide blocks 1601 and the impurity collection box 2 form an up-and-down sliding structure. The moving structure and vertical movement control mechanism include an upper pull rope 18, a winding shaft 19, a torsion spring 20, a rotating shaft 21, and an automatic drive mechanism. The upper pull rope 18 is fixed above the scraper 16. The winding shaft 19 is rotatably mounted above the impurity collection box 2 and is connected to the upper end of the upper pull rope 18. The torsion spring 20 is located at the end of the winding shaft 19 to provide rotational reset force. The rotating shaft 21 is rotatably mounted below the impurity collection box 2 and is connected to the lower end of the protective net 17. The automatic drive mechanism is located outside the rotating shaft 21 to drive rotation. The automatic drive mechanism for moving shaft 21 includes a gear 22, a rack 23, a movable block 24, a return spring 25, a release mechanism, and a trigger block 29. Gear 22 is fixed to the end of the rotating shaft 21. Rack 23 is positioned below gear 22 and meshes with it. Movable block 24 is located outside rack 23 and slides left and right with impurity collection box 2. Return spring 25 is fixed to the outer end of movable block 24 to provide thrust. Release mechanism is located outside rack 23 to control its translation. Trigger block 29... 9. Fixed below the impurity removal plate 7, the impurity removal plate 7 is in contact with the movable block 24 when it is close to the impurity collection box 2. The release mechanism includes a first magnet 26, a second magnet 27 and a third magnet 28. The first magnet 26 is fixed in the middle of the rack 23, and the rack 23 and the movable block 24 form a front and back sliding structure. The second magnet 27 is fixed at the bottom of the purification tank 1, and the second magnet 27 and the first magnet 26 are arranged with the same magnetic poles facing each other. The third magnet 28 is fixed inside the impurity collection box 2, and the third magnet 28 and the first magnet 26 are arranged with opposite magnetic poles facing each other.

[0066] When the impurity removal plate 7 approaches the impurity collection box 2, the trigger block 29 and the movable block 24 come into contact. The trigger block 29 pushes the movable block 24 to move, and the movable block 24 drives the rack 23 and the gear 22 to mesh, causing the rotating shaft 21 to rotate. When the rotating shaft 21 rotates, it will roll up the protective net 17, pull the scraper 16 downward, and open the impurity collection box 2. When the impurity removal plate 7 is in contact with the scraper 16, the movable block 24 moves to its maximum distance. At this time, the third magnet 28 and the first magnet 26 are opposite each other, attracting the first magnet 26 to drive the rack 23 to move horizontally, disengaging the rack 23 and the gear 22. At this time, the torsion spring 20 will carry... The rotating take-up shaft 19 rotates to wind up the pull rope 18, causing the pull rope 18 to pull the scraper 16 upwards, and simultaneously moving the protective net 17 to collect impurities into the impurity collection box 2. The subsequent impurity removal plate 7 moves back and forth, the squeezing force on the movable block 24 disappears, and the reset spring 25 pushes the movable block 24 to reset. When the movable block 24 resets, the rack 23 does not mesh with the gear 22. After the movable block 24 resets, the first magnet 26 and the second magnet 27 are opposite each other. Under the repulsive force of the magnets, the rack 23 translates and meshes with the gear 22 again, so that the subsequent impurity removal plate 7 can move to this position again to continue controlling the movement of the scraper 16.

[0067] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0068] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A wastewater purification and treatment device for biological pharmaceutical preparation, comprising a purification tank (1); characterized in that The purification tank (1) is equipped with a cleaning plate (7) inside. The surface of the cleaning plate (7) is designed with a mesh structure. A connecting plate (8) is fixed in the middle of the cleaning plate (7). An external pipe (12) is connected above the connecting plate (8). The external pipe (12) is connected to the external air supply structure. An aeration mechanism is connected below the external pipe (12) to introduce the gas in the external pipe (12) into the purification tank (1). A translation mechanism is connected above the cleaning plate (7) to control the movement of the cleaning plate (7) in the purification tank (1). An impurity collection box (2) is provided inside the purification tank (1). The impurity collection boxes (2) are symmetrically distributed about the center of the purification tank (1). The inner side of the impurity collection box (2) is designed with an open structure. An installation groove (3) is provided at the bottom of the purification tank (1) to provide installation space for the bottom of the impurity collection box (2). A shielding mechanism is provided on the inner side of the impurity collection box (2) to shield the impurities in the impurity collection box (2). The shielding mechanism includes a scraper (16), a protective net (17), and a vertical movement control mechanism; The scraper (16) is set inside the impurity collection box (2), and the scraper (16) and the impurity collection box (2) form an up-and-down sliding structure. A protective net (17) is fixed below the scraper (16) to cover the opening of the impurity collection box (2); The vertical movement control mechanism is connected to the scraper (16) and the protective net (17) to control the movement of the scraper (16) and the protective net (17).

2. The wastewater purification and treatment equipment for biological reagent preparation according to claim 1, characterized in that: The impurity collection box (2) and the purification tank (1) are detachably connected, so that the impurity collection box (2) can be removed from the inside of the purification tank (1).

3. The wastewater purification and treatment equipment for biopharmaceutical preparation according to claim 1 or 2, characterized in that: An installation block (4) is fixed on the outside of the impurity collection box (2). The installation block (4) and the purification tank (1) form a concave-convex fit structure. An installation part (5) passes through the middle of the installation block (4). A connecting groove (6) is opened above the purification tank (1). A threaded connection is formed between the connecting groove (6) and the installation part (5).

4. The wastewater purification and treatment equipment for biological reagent preparation according to claim 1, characterized in that: The translation mechanism includes a drive block (13), a reciprocating lead screw (14), and a motor (15). The drive block (13) is fixed above the impurity removal plate (7), and the drive block (13) and the purification tank (1) form a left-right sliding structure; The reciprocating lead screw (14) passes through the drive block (13) and forms a threaded connection between the drive block (13); The motor (15) is connected to the reciprocating screw (14) to control the rotation of the reciprocating screw (14).

5. The wastewater purification and treatment equipment for biological reagent preparation according to claim 1, characterized in that: The aeration mechanism includes a delivery pipe (9), a connecting pipe (10), and an aeration port (11). The conveying pipe (9) is located inside the connecting plate (8), and the conveying pipe (9) is connected to the outer pipe (12); The connecting pipe (10) is fixed at the lower end of the conveying pipe (9), and the connecting pipe (10) is located below the impurity removal plate (7), and the interior of the connecting pipe (10) is connected to the conveying pipe (9); Aeration ports (11) are evenly distributed on the surface of the connecting pipe (10).

6. The wastewater purification and treatment equipment for biological reagent preparation according to claim 1, characterized in that: Guide blocks (1601) are fixed on both the front and rear sides of the scraper (16), and the guide blocks (1601) and the impurity collection box (2) form an up-and-down sliding structure.

7. The wastewater purification and treatment equipment for biological reagent preparation according to claim 6, characterized in that: The vertical movement control mechanism includes an upper pull rope (18), a winding shaft (19), a torsion spring (20), a rotating shaft (21), and an automatic drive mechanism; The pull rope (18) is fixed above the scraper (16); The winding shaft (19) is rotatably mounted above the impurity collection box (2), and the upper end of the winding shaft (19) is connected to the upper end of the pull rope (18); A torsion spring (20) is provided at the end of the winding shaft (19) to provide rotational restoring force for the winding shaft (19); A rotating shaft (21) is rotatably installed below the impurity collection box (2), and the rotating shaft (21) is connected to the lower end of the protective net (17); An automatic drive mechanism is located on the outside of the rotating shaft (21) to drive the rotation of the rotating shaft (21).

8. The wastewater purification and treatment equipment for biological reagent preparation according to claim 7, characterized in that: The automatic drive mechanism includes a gear (22), a rack (23), a movable block (24), a return spring (25), a release mechanism, and a trigger block (29); Gear (22) is fixed to the end of rotating shaft (21); The rack (23) is positioned below the gear (22) and forms a meshing connection with the gear (22); The movable block (24) is located on the outside of the rack (23), and the movable block (24) and the impurity collection box (2) form a left-right sliding structure; The return spring (25) is fixed to the outer end of the movable block (24) to provide thrust to the movable block (24); The release mechanism is located on the outside of the rack (23) to control the translation of the rack (23); The trigger block (29) is fixed below the impurity removal plate (7). When the impurity removal plate (7) is close to the impurity collection box (2), it is in contact with the movable block (24).

9. The wastewater purification and treatment equipment for biological reagent preparation according to claim 8, characterized in that: The release mechanism includes a first magnet (26), a second magnet (27) and a third magnet (28). The first magnet (26) is fixed in the middle of the rack (23), and the rack (23) and the movable block (24) form a sliding structure. The second magnet (27) is fixed at the bottom of the purification tank (1), and the second magnet (27) and the first magnet (26) are arranged with the same magnetic poles facing each other; The third magnet (28) is fixed inside the impurity collection box (2), and the third magnet (28) and the first magnet (26) are arranged with opposite magnetic poles.

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