A pharmaceutical wastewater treatment device based on tea dregs as filtering medium

Abstract

The application relates to the technical field of pharmaceutical wastewater treatment equipment, in particular to a pharmaceutical wastewater treatment device based on tea dregs as a filtering medium, which comprises a treatment box and a box cover. A rotating shaft is arranged in the treatment box, the bottom of the rotating shaft is connected with a rotating disc, a stirring rod is arranged on the rotating disc, and an arc-shaped block is connected with the lower surface. The arc-shaped block is slidably connected with a connecting disc, the connecting disc is fixed on a rotating frame, the rotating frame is arranged at the bottom of the treatment box and is connected with a supporting disc through a connecting column. The stirring rod is slidably connected with the connecting column, the top of the rotating shaft is driven to rotate by a first driving assembly, and the side of the box cover is provided with a second driving assembly for controlling lifting. The supporting disc is fixed with the bottom of a sieve box through a limiting rod, the top of the sieve box is detachably connected with a cover plate, and the limiting clamping blocks on the two sides of the limiting rod are quickly fixed or released from clamping through a clamping assembly. The device realizes efficient utilization of tea dregs and convenient installation and removal of the sieve box through mechanical design, and the chemical adsorption efficiency and treatment effect are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pharmaceutical wastewater treatment equipment, in particular to a pharmaceutical wastewater treatment device based on tea dregs as filtering medium. BACKGROUND

[0002] Pharmaceutical wastewater treatment is an integral part of the pharmaceutical industry, and its purpose is to remove pollutants from wastewater and reduce negative impacts on the environment. Traditional methods of pharmaceutical wastewater treatment often rely on chemical agents, activated carbon or other synthetic materials as filtering media, but these materials are often costly and may cause secondary pollution to the environment. Tea dregs, as a natural waste, are widely available and cost-effective, with good adsorption performance and biodegradability. Tea dregs contain various active ingredients such as polyphenols, cellulose and minerals, which can effectively remove heavy metal ions (such as lead, mercury, cadmium, etc.) and some organic pollutants in water through chemical adsorption. Therefore, tea dregs are explored as a new filtering medium for pharmaceutical wastewater treatment, which is both environmentally friendly and economical.

[0003] In the prior art, in the existing pharmaceutical wastewater treatment technology, a pretreatment device is usually used to preliminarily purify the wastewater. The main function of the pretreatment unit is to reduce the turbidity and pollutant concentration of the wastewater, remove larger solid suspended matter, fibrous matter and impurities, so as to protect the subsequent treatment unit from being blocked by large particle impurities. The pretreated wastewater is introduced into a treatment tank, and a sieve box is installed in the tank, which is filled with tea dregs. Through the static method, tea dregs can contact with wastewater and remove heavy metal ions and some organic pollutants in water by using its chemical adsorption performance. This treatment method not only reduces the use of chemical agents, but also achieves purification through the natural adsorption properties of tea dregs.

[0004] However, the existing filtering device based on tea dregs still has some problems in practical application. First of all, tea dregs need to be cleaned or replaced after a period of use, and the sieve holes on the surface of the sieve box are easily blocked by impurities, affecting the filtering efficiency. The existing sieve box is mostly fixed and installed in the treatment tank by fasteners such as bolts, and the disassembly and installation process is relatively cumbersome, which reduces the efficiency of maintenance and replacement. Secondly, the static method makes the wastewater react with the tea dregs, which can achieve a certain degree of adsorption, but the adsorption efficiency of the tea dregs is low, and part of the tea dregs may accumulate inside the sieve box and cannot fully contact with the wastewater, resulting in further decline in treatment effect and efficiency. Therefore, the present application proposes a pharmaceutical wastewater treatment device based on tea dregs as filtering medium to solve the above problems. SUMMARY

[0005] The present application aims to provide a pharmaceutical wastewater treatment device based on tea dregs as filtering medium to solve the problems raised in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: a pharmaceutical wastewater treatment device based on tea dregs as filtering medium, comprising: a treatment box and a box cover, a rotating shaft is rotatably installed in the treatment box, a rotating disc is fixedly connected to the bottom of the rotating shaft, a lever is fixedly installed on the upper surface of the rotating disc, an arc-shaped block is fixedly connected to the lower surface of the rotating disc, one side of the arc-shaped block is slidably connected with a connecting disc, the lower surface of the connecting disc is fixedly connected with a rotating frame, the rotating frame is rotatably installed at the bottom of the inner side of the treatment box, the rotating frame is fixedly connected with a supporting disc through connecting columns around the rotating frame, the lever is slidably connected with the connecting columns, the top of the rotating shaft is connected with a first driving assembly for driving the rotating shaft to rotate, one side of the box cover is connected with a second driving assembly for driving the box cover to lift.

[0007] The upper surface of the supporting disc is abutted with the bottom end of a limiting rod, the top end of the limiting rod is fixedly connected with the bottom of a sieve box, a cover plate is detachably connected to the top of the sieve box, limiting clamping blocks are arranged on both sides of the limiting rod, one end of the limiting clamping blocks is connected with a clamping assembly for driving the two limiting clamping blocks to move relative to each other.

[0008] Preferably, the first driving assembly is arranged on one side of the upper surface of the box cover, a feeding pipe is fixedly sleeved on the other side of the upper surface of the box cover, the first driving assembly comprises a first motor, the top of the first motor is fixedly connected with a fixed frame, and the bottom of the fixed frame is fixedly connected with the upper surface of the box cover.

[0009] Preferably, a driving gear is fixedly sleeved on the bottom output end of the first motor, the driving gear is in meshing transmission with a driven gear on one side, the driven gear is fixedly connected with the top end of the rotating shaft, and the top of the rotating shaft is rotatably sleeved in an upper limiting block fixedly installed in the box cover.

[0010] Preferably, the second driving assembly comprises a connecting plate, one end of the connecting plate is fixedly connected with the edge of the upper surface of the box cover, the other side of the box cover is threadedly sleeved on a threaded rod, and the upper and lower ends of the threaded rod are rotatably sleeved in a supporting frame.

[0011] Preferably, one side of the bottom of the supporting frame is welded and fixed with the outer side wall of the treatment box, a second motor is fixedly installed on the lower surface of the supporting frame, the output end of the second motor penetrates through the supporting frame and is fixedly connected with the bottom end of the threaded rod, and the connecting plate is slidably connected between the supporting frame and the clamping block.

[0012] Preferably, a lower limiting block is fixedly installed at the center position of the bottom of the inner side of the treatment box, the bottom of the rotating frame is rotatably sleeved in the lower limiting block, and arc-shaped holes are arranged in a circumferential array on the connecting disc.

[0013] Preferably, the arc-shaped holes are slidably connected with the arc-shaped block, stirring fins are fixedly connected to the outer circumferential surface of the middle segment of the rotating shaft, a discharge pipe is fixedly sleeved on the bottom of the treatment box, and the discharge pipe is fixedly connected with a discharge valve.

[0014] Preferably, the clamping assembly includes a fixed plate, a support plate fixedly connected to the lower surface of the fixed plate, a fixed upper surface of the fixed plate fixedly connected to a fixed frame, and a long pin shaft rotatably connected to the middle of a long connecting rod inside the fixed frame.

[0015] Preferably, one end of the long connecting rod is fixedly connected to the limiting clamp, and the other end of the long connecting rod is rotatably connected to one end of the short connecting rod through a short pin shaft, and the other end of the short connecting rod is rotatably connected to the pull rod through a short pin shaft.

[0016] Preferably, one side of the pull rod is slidably fitted inside a limiting plate fixedly connected to the upper surface of the fixed plate, and the other end of the pull rod is fixedly fitted with a baffle, and a rectangular spring is fixedly connected between the baffle and the limiting plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This device, through its clamping component design, makes the removal and installation of the screen box more convenient and efficient. The limiting clamp, under the action of a rectangular spring, can quickly clamp or release the limiting rod, thus avoiding the cumbersome operation of traditional bolt fixing methods, improving the efficiency of screen box replacement, and also enhancing overall processing efficiency.

[0019] The transmission design, utilizing a rotating shaft, lever, and arc-shaped block, allows the screen box to rotate intermittently within the treatment chamber, preventing the accumulation of tea residue and incomplete reaction. During rotation, the tea residue comes into full contact with the wastewater, improving chemical adsorption efficiency and further optimizing the treatment effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a bottom view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 4 This is a bottom view of the internal structure of the present invention;

[0024] Figure 5 This is a top view of the internal structure of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Processing box; 2. Box cover; 3. Rotating shaft; 4. Turntable; 5. Lever; 6. Arc-shaped block; 7. Connecting plate; 8. Rotating frame; 9. Support plate; 10. Limiting rod; 11. Screen box; 12. Cover plate; 13. Limiting clamp; 14. Feeding pipe; 15. Fixed frame; 16. Drive gear; 17. Driven gear; 18. Upper limit block; 19. Connecting plate; 20. Threaded rod; 21. 1. Support frame; 22. Locking block; 23. Lower limit block; 24. Arc hole; 25. Stirring plate; 26. Discharge pipe; 27. Discharge valve; 28. Fixing plate; 29. ​​Fixing frame; 30. Long connecting rod; 31. Short connecting rod; 32. Pull rod; 33. Limiting plate; 34. Baffle; 35. Rectangular spring; 36. Connecting column; 37. Groove; 38. Pin; 39. Return spring; 40. Stepped hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit 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.

[0028] Example 1: Please refer to Figures 1 to 6This invention provides a technical solution: a pharmaceutical wastewater treatment device based on tea residue as a filter medium, comprising: a treatment tank 1 and a tank cover 2. The treatment tank 1 is used to hold pre-treated wastewater, and the tank cover 2 is used to seal the treatment tank 1. A rotating shaft 3 is rotatably installed inside the treatment tank 1. A turntable 4 is fixedly connected to the bottom of the rotating shaft 3, so that the rotating shaft 3 can drive the turntable 4 to rotate synchronously. A lever 5 is fixedly installed on the upper surface of the turntable 4, and an arc-shaped block 6 is fixedly connected to the lower surface of the turntable 4. One side of the arc-shaped block 6 is slidably connected to a connecting plate 7. The lower surface of the connecting plate 7 is fixedly connected to a rotating frame 8. The rotating frame 8 is rotatably installed on the bottom of the inner side of the treatment tank 1. The rotating frame 8 is fixedly connected to the lower surface of a support plate 9 through connecting columns 36, which provide stable support for the support plate 9. The lever 5 is slidably connected to the connecting column 36. The top of the rotating shaft 3... The first drive assembly for driving the rotating shaft 3 to rotate is connected to the part of the box cover 2. The second drive assembly for driving the box cover 2 to rise and fall is connected to one side of the box cover 2. The second drive assembly makes the box cover 2 rise or fall, thereby facilitating the subsequent installation and removal of the sieve box 11. The upper surface of the support plate 9 abuts against the bottom end of the limiting rod 10. The top end of the limiting rod 10 is fixedly connected to the bottom of the sieve box 11. The top of the sieve box 11 is detachably connected to the cover plate 12. The detachable cover plate 12 facilitates the subsequent removal of tea residue from the sieve box 11. Limiting clamps 13 are provided on both sides of the limiting rod 10. The limiting rod 10 is limited and fixed by the clamping of the limiting clamps 13, thereby fixing the limiting rod 10 to the support plate 9. One end of the limiting clamp 13 is connected to a clamping assembly for driving the two limiting clamps 13 to move relative to each other.

[0029] In use, an appropriate amount of tea residue is added to the sieve box 11 beforehand. The cover plate 12 is installed on top of the sieve box 11, and then the cover 2 is raised by the second drive assembly to facilitate the placement of the sieve box 11 into the processing box 1, so that the bottom of the limiting rod 10 abuts against the upper surface of the support plate 9. By operating the clamping assembly, the two limiting blocks 13 move towards each other, thereby clamping and fixing the limiting rod 10. The limiting rod 10 then fixes the sieve box 11 on the support plate 9. When it is necessary to remove the sieve box 11, the two limiting blocks 13 move towards each other, thereby clamping and fixing the limiting rod 10. The clamping block 13 moves backward, thereby releasing the limiting rod 10 and allowing the screen box 11 to be easily removed. Then, the second drive assembly lowers the cover 2 until the top of the treatment box 1 is closed. Pre-treated wastewater is then poured into the treatment box 1. At this point, the first drive assembly is activated, causing the rotating shaft 3 to rotate. The rotation of the shaft 3 drives the turntable 4 to rotate, which in turn drives the lever 5 fixedly connected to its upper surface and the arc-shaped block 6 fixedly connected to its lower surface to move synchronously. When the lever 5 rotates to initially contact one of the connecting posts 36, it actuates the connecting post 36. The connecting post 36 is fixedly connected between the support plate 9 and the rotating frame 8, thus driving the support plate 9 and the rotating frame 8 to move synchronously. The rotating frame 8 rotates under the limiting position at the bottom of the treatment box 1. The connecting post 36 drives the support plate 9 to rotate circumferentially, and the support plate 9 drives the screen box 11 to rotate circumferentially. During this process, the arc-shaped block 6 gradually separates from the inner wall of the rotating frame 8, and simultaneously, the lever 5 gradually separates from the initially contacting connecting post 36 until the initial contact... When the connecting column 36 is rotated 90 degrees, the lever 5 completely separates from the initially contacting connecting column 36. Then the lever 5 continues to rotate, and the arc-shaped block 6 gradually contacts the connecting plate 7 and slides under the limit of the connecting plate 7 until the lever 5 gradually contacts the connecting column 36 again, and continues to push the lever 5 to rotate. By repeating this process, the four sieve boxes 11 can be rotated 90 degrees intermittently, thereby improving the reverse efficiency. At the same time, during the rotation of the sieve box 11, the tea residue deposited inside the sieve box 11 will shake, thereby avoiding insufficient reaction.

[0030] Example 2: Based on Example 1, a first drive assembly is disposed on one side of the upper surface of the tank cover 2, and a feeding pipe 14 is fixedly sleeved on the other side of the upper surface of the tank cover 2. The feeding pipe 14 facilitates the filling of pretreated wastewater into the treatment tank 1. The first drive assembly includes a first motor, which is electrically connected to an external control device. The top of the first motor is fixedly connected to the top of a fixing frame 15, and the bottom of the fixing frame 15 is fixedly connected to the upper surface of the tank cover 2, providing fixed support for the first motor. A drive gear 16 is fixedly sleeved at the bottom output end of the first motor. The drive gear 16... The driven gear 17 meshes with the driven gear 17, which is fixedly connected to the top of the rotating shaft 3. The top of the rotating shaft 3 is rotatably fitted inside the upper limit block 18 fixedly installed inside the box cover 2. The upper limit block 18 limits the rotation of the rotating shaft 3, thereby improving the stability of the rotating shaft 3 during rotation. By controlling the rotation of the first motor, the first motor drives the drive gear 16 to rotate. The drive gear 16 then meshes with the driven gear 17, causing the driven gear 17 to drive the rotating shaft 3 to rotate under the limit of the upper limit block 18. Thus, the rotation of the rotating shaft 3 facilitates the intermittent circular motion of the screen box 11 through subsequent transmission.

[0031] Example 3: Based on Example 2, the second drive assembly includes a connecting plate 19. One end of the connecting plate 19 is fixedly connected to the edge of the upper surface of the box cover 2. The other end of the box cover 2 is threaded onto a threaded rod 20. Both ends of the threaded rod 20 are rotatably fitted into the support frame 21. The support frame 21 provides limiting support for the threaded rod 20, thereby improving its stability during rotation. One side of the bottom of the support frame 21 is welded and fixed to the outer wall of the processing box 1. A second motor is fixedly installed on the lower surface of the support frame 21. The second motor is electrically connected to an external control device, and the output end of the second motor passes through the support frame 21. It is fixedly connected to the bottom end of the threaded rod 20. The connecting plate 19 is slidably connected to the support frame 21 through the locking block 22. The locking block 22 is slidably locked on the side wall of the support frame 21. By controlling the start of the second motor, the second motor drives the threaded rod 20 to rotate. Under the rotation of the threaded rod 20, the connecting plate 19 on it is driven to move. Since the connecting plate 19 and the threaded rod 20 are threadedly connected, and the locking block 22 is slidably locked on the support frame 21, the connecting plate 19 drives the box cover 2 to slide along the axis of the threaded rod 20, and finally realizes the lifting and lowering of the box cover 2, so as to facilitate the picking and putting in of the screen box 11.

[0032] A lower limit block 23 is fixedly installed at the center of the bottom of the inner side of the treatment box 1. The bottom of the rotating frame 8 is rotatably sleeved in the lower limit block 23. The lower limit block 23 improves the rotational stability of the rotating frame 8. The connecting plate 7 has an arc hole 24 in a circular array. The arc hole 24 is slidably connected to the arc block 6. The outer ring surface of the middle section of the rotating shaft 3 is fixedly connected to the stirring plate 25. The bottom of the treatment box 1 is fixedly sleeved with the discharge pipe 26. The bottom of the discharge pipe 26 is fixedly connected to the discharge valve 27. During the rotation of the rotating shaft 3, the stirring plate 25 will be driven to rotate, thereby stirring the stirring plate 25 in the treatment box 1, causing the sewage to turn over, and then fully contact the tea residue, thereby improving the chemical adsorption effect. After the sewage treatment is completed, the discharge pipe 26 is connected to the external pipeline, and the discharge valve 27 is opened to discharge the treated sewage to the outside for subsequent treatment.

[0033] Example 4: Based on Example 3, the clamping assembly includes a fixed plate 28, which supports the various components in the clamping assembly. The lower surface of the fixed plate 28 is fixedly connected to the support plate 9, and the upper surface of the fixed plate 28 is fixedly connected to the fixed frame 29. The fixed frame 29 is rotatably connected to the middle of the long connecting rod 30 through a long pin shaft. The fixed frame 29 limits the long connecting rod 30. One end of the long connecting rod 30 is fixedly connected to the limiting clamping block 13, and the other end of the long connecting rod 30 is rotatably connected to one end of the short connecting rod 31 through a short pin shaft. The other end of the short connecting rod 31 is rotatably connected to the pull rod 32 through a short pin shaft. One side of the pull rod 32 is slidably sleeved in the limiting plate 33 fixedly connected to the upper surface of the fixed plate 28. The fixed plate 28 limits the pull rod 32, and the other end of the pull rod 32 is fixedly sleeved with a baffle 34. A rectangular spring 35 is fixedly connected between the baffle 34 and the limiting plate 33.

[0034] When the screen box 11 needs to be removed from the support plate 9, the pull rod 32 is pulled outward. The pull rod 32 slides within the limit of the fixed plate 28, thereby causing the baffle 34 to move closer to the fixed plate 28. This compresses the rectangular spring 35. Simultaneously, the pull rod 32 drives one end of the short connecting rod 31 to move through the rotation of the short pin. The other end of the short connecting rod 31 then pulls one end of the two long connecting rods 30 through the connection of the short pin. The middle of the long connecting rods 30 is located in the fixed frame 2. The 9th pin moves in opposite directions relative to the limit pin, causing the other end of the long connecting rod 30 to move in the opposite direction. This causes the long connecting rod 30 to move the limit clamp 13 away from the limit rod 10, thereby releasing the limit rod 10 and the bottom of the screen box 11. The screen box 11 can then be quickly removed. When installation is required, the limit clamp 13 moves in opposite directions under the reverse elastic force of the rectangular spring 35, thereby fixing the limit rod 10 and the screen box 11.

[0035] Example 5: Based on Example 4, a stepped hole 40 is provided on the side wall of the sieve box 11, and a groove 37 is provided on the cover plate 12 at the corresponding position of the stepped hole 40. The groove 37 is slidably inserted into one end of the pin 38, and the other end of the pin 38 is fixedly connected to the stepped hole 40 through a return spring 39. When it is necessary to disassemble the cover plate 12, the pin 38 is pulled outward to slide out of the groove 37, and the return spring 39 is compressed at the same time to release the limitation on the cover plate 12. When it is necessary to install, the pin 38 can be reset in the groove 37 by the reverse elastic force of the return spring 39, so as to limit the cover plate 12, thereby facilitating the removal and placement of tea residue.

[0036] 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 pharmaceutical wastewater treatment device based on tea residue as a filter medium, comprising a treatment tank (1) and a tank cover (2), characterized in that: The processing box (1) is rotatably installed with a rotating shaft (3), and a turntable (4) is fixedly connected to the bottom of the rotating shaft (3). A lever (5) is fixedly installed on the upper surface of the turntable (4), and an arc block (6) is fixedly connected to the lower surface of the turntable (4). One side of the arc block (6) is slidably connected to the connecting plate (7). The lower surface of the connecting plate (7) is fixedly connected to the rotating frame (8). The rotating frame (8) is rotatably installed at the bottom of the processing box (1). The rotating frame (8) is fixedly connected to the lower surface of the support plate (9) through the connecting column (36). The lever (5) is slidably connected to the connecting column (36). A first drive assembly for driving the rotating shaft (3) to rotate is connected to the top of the rotating shaft (3). A second drive assembly for driving the box cover (2) to lift is connected to one side of the box cover (2). The upper surface of the support plate (9) abuts against the bottom end of the limiting rod (10), the top end of the limiting rod (10) is fixedly connected to the bottom of the screen box (11), the top of the screen box (11) is detachably connected to a cover plate (12), the limiting rod (10) is provided with limiting clamps (13) on both sides, and one end of the limiting clamp (13) is connected to a clamping component for driving the two limiting clamps (13) to move relative to each other.

2. The pharmaceutical wastewater treatment device based on tea residue as a filter medium according to claim 1, characterized in that: The first drive assembly is disposed on one side of the upper surface of the box cover (2), and the feeding tube (14) is fixedly sleeved on the other side of the upper surface of the box cover (2). The first drive assembly includes a first motor, the top of the first motor is fixedly connected to the top of the fixed frame (15), and the bottom of the fixed frame (15) is fixedly connected to the upper surface of the box cover (2).

3. A pharmaceutical wastewater treatment device based on tea residue as a filter medium according to claim 2, characterized in that: The first motor has a drive gear (16) fixedly mounted on the bottom output end. One side of the drive gear (16) meshes with the driven gear (17) for transmission. The driven gear (17) is fixedly connected to the top of the rotating shaft (3). The top of the rotating shaft (3) is rotatably mounted in the upper limit block (18) fixedly installed inside the box cover (2).

4. A pharmaceutical wastewater treatment device based on tea residue as a filter medium according to claim 1, characterized in that: The second drive assembly includes a connecting plate (19), one end of which is fixedly connected to the edge of the upper surface of the box cover (2), and the other end of which is threaded onto the threaded rod (20). Both ends of the threaded rod (20) are rotatably fitted inside the support frame (21).

5. A pharmaceutical wastewater treatment device based on tea residue as a filter medium according to claim 4, characterized in that: The bottom side of the support frame (21) is welded and fixed to the outer wall of the processing box (1). A second motor is fixedly installed on the lower surface of the support frame (21). The output end of the second motor passes through the support frame (21) and is fixedly connected to the bottom end of the threaded rod (20). The connecting plate (19) is slidably connected to the support frame (21) through the card block (22).

6. A pharmaceutical wastewater treatment device based on tea residue as a filter medium according to claim 5, characterized in that: A lower limit block (23) is fixedly installed at the center of the bottom of the inner side of the processing box (1). The bottom of the rotating frame (8) is rotated and sleeved in the lower limit block (23). The connecting plate (7) has an arc hole (24) arranged in a circular array.

7. A pharmaceutical wastewater treatment device based on tea residue as a filter medium according to claim 6, characterized in that: The arc hole (24) is slidably connected to the arc block (6), and the outer ring surface of the middle section of the rotating shaft (3) is fixedly connected to the stirring plate (25). The bottom of the processing box (1) is fixedly fitted with a discharge pipe (26), and the bottom of the discharge pipe (26) is fixedly connected to the discharge valve (27).

8. A pharmaceutical wastewater treatment device based on tea residue as a filter medium according to claim 1, characterized in that: The clamping assembly includes a fixed plate (28), the lower surface of which is fixedly connected to the support plate (9), the upper surface of which is fixedly connected to the fixed frame (29), the fixed frame (29) is rotatably connected to the middle of the long connecting rod (30) through a long pin shaft, one end of the long connecting rod (30) is fixedly connected to the limiting clamp (13), the other end of the long connecting rod (30) is rotatably connected to one end of the short connecting rod (31) through a short pin shaft, the other end of the short connecting rod (31) is rotatably connected to the pull rod (32) through a short pin shaft, one side of the pull rod (32) is slidably sleeved in the limiting plate (33) fixedly connected to the upper surface of the fixed plate (28), the other end of the pull rod (32) is fixedly sleeved with a baffle (34), and a rectangular spring (35) is fixedly connected between the baffle (34) and the limiting plate (33).

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