Wastewater purification treatment device for pharmaceutical production

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a wastewater purification treatment device for pharmaceutical production, which comprises an air flotation chamber, the air flotation chamber is composed of a purification cylinder and two baffle plates, the axis of the purification cylinder is horizontal, openings on the left and right sides of the purification cylinder are both provided with annular flanges, and the two baffle plates are respectively arranged in the two annular flanges. Therefore, the baffle plate blocks the opening of the purification cylinder; by adopting the mode that the air supply trough plate carries air and presses the air into the wastewater, the air can form a large number of bubbles in the wastewater, so that floating impurities in the wastewater are subjected to air flotation separation treatment through the bubbles, and the wastewater is purified; therefore, the air supply trough plate can achieve the purpose of continuous exhaust in wastewater along with continuous change of the opening angle of the air supply trough plate, so that bubbles are distributed in the wastewater in a large area, and the wastewater treatment effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a wastewater purification treatment device used for medicine production. Background Art

[0002] Pharmaceutical production wastewater refers to wastewater containing a large amount of harmful substances such as chemicals, herbal fibers, colloids, etc. that are associated with the manufacture of medicines. Its direct discharge will cause great harm to the environment and human body. Therefore, the wastewater needs to be purified before discharge. Since the wastewater contains a large amount of floating objects, in the commonly used wastewater purification method, it is necessary to use an air flotation machine to separate the floating objects. When using a traditional air flotation machine, air is discharged into the wastewater through an air pump and the air forms bubbles in the water. In this way, the floating objects can be adsorbed by the surface of the bubbles, thereby achieving the aggregation and floating separation of the floating objects. However, in this air flotation method, since the bubbles discharged from the exhaust pipe are relatively aggregated and the bubble volume is large, the bubbles cannot be distributed over a large area inside the air flotation machine, resulting in the bubbles floating too fast and unable to fully adsorb and treat the floating objects in the wastewater, thereby affecting the quality of wastewater treatment. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a wastewater purification treatment device for pharmaceutical production.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] Wastewater purification and treatment equipment for pharmaceutical production, including:

[0006] The air flotation chamber is composed of a purification cylinder and two baffles. The axis of the purification cylinder is horizontal. Annular baffles are provided on the openings on the left and right sides of the purification cylinder. The two baffles are respectively arranged inside the two annular baffles, so that the baffles block the opening of the purification cylinder, and the purification cylinder rotates on the baffles.

[0007] An air dispersion mechanism, wherein the air dispersion mechanism is composed of a plurality of air delivery slot plates;

[0008] Among them, a water inlet pipe is connected to the baffle on one side of the purification cylinder, and an overflow pipe and a through port are provided on the baffle on the other side of the purification cylinder. The overflow pipe is located above the through port, and multiple air supply slots are distributed in a ring shape on the circumferential inner wall of the purification cylinder. The cross-sectional shape of the air supply slot is arc-shaped, and the axis of the air supply slot is parallel to the axis of the purification cylinder. Both ends of the air supply slot are blocked, and the opening of the air supply slot is located on its outer wall, and the direction of the opening of the air supply slot is along the tangent direction of the air supply slot following the circular motion of the purification cylinder.

[0009] Preferably, a partition is provided inside the purification cylinder, the partition is located above the liquid level in the purification cylinder, and both ends of the partition are fixed on two baffles respectively;

[0010] A sliding groove is provided inside the air supply groove plate, and an arc-shaped sealing plate is slidably provided in the sliding groove. The arc-shaped sealing plate is coaxial with the air supply groove plate, and the sliding direction of the arc-shaped sealing plate is along the circumferential direction of the axis of the air supply groove plate. The end of the arc-shaped sealing plate slides out into the opening of the air supply groove plate, and the opening and closing of the air supply groove plate can be controlled by the arc-shaped sealing plate.

[0011] Preferably, a drain outlet is provided on the air delivery trough plate, and the drain outlet and the opening of the air delivery trough plate are located on both sides of the axis of the air delivery trough plate. When the arc-shaped sealing plate is located in the slide groove, the arc-shaped sealing plate blocks the drain outlet, and when the arc-shaped sealing plate blocks the opening of the air delivery trough plate, the drain outlet is opened.

[0012] Preferably, a drainage groove is provided on the circumferential outer wall of the arc-shaped sealing plate, and the position of the drainage groove is aligned with the position of the drain outlet.

[0013] Preferably, the upper surface of the partition is configured as an arc, the lower surface of the partition is configured as an inclined surface, and the inclined surface is inclined toward the side where the air delivery slot plate moves out of the water surface in the purification cylinder, and the partition is inclined along the axis direction of the purification cylinder;

[0014] A material conveying trough plate is arranged on the through opening.

[0015] Preferably, both ends of the air delivery slot plate are rotatably provided with a rotating shaft, the rotating shaft is coaxial with the air delivery slot plate, the rotating shaft passes through the end of the air delivery slot plate and the annular retaining edge of the purification cylinder and extends to the outside of the purification cylinder, the rotating shaft rotates on the air delivery slot plate and the purification cylinder, one end of the rotating shaft is fixed with a first connecting rod, the first connecting rod is fixedly connected to the arc-shaped sealing plate, the other end of the rotating shaft is fixed with a second connecting rod, and the second connecting rod is provided with a sliding column;

[0016] Both ends of the purification cylinder are provided with annular groove plates, and the annular groove plates are separated from the purification cylinder. The annular groove plates are composed of a first arc groove plate and a second arc groove plate. The circle where the first arc groove plate is located is located outside the circle where the second arc groove plate is located. The first arc groove plate, the second arc groove plate and the purification cylinder are coaxial, and the sliding column is slidably installed in the annular groove plate.

[0017] Preferably, it also includes an arc-shaped base, the purification cylinder is rotatably installed in the arc-shaped base, a fixing plate is fixed on the baffle, the fixing plate is fixed on the outer wall of the arc-shaped base, and the annular groove plate is fixed on the fixing plate.

[0018] Preferably, an annular tooth groove is provided on the circumferential outer wall of the purification cylinder, a motor is provided on the arc-shaped base, a gear is provided at the output end of the motor, and the gear meshes with the teeth in the tooth groove on the purification cylinder.

[0019] Compared with the prior art, the present invention has the following beneficial effects: by adopting the method of using an air supply slot plate to carry air and press it into the wastewater, a large number of bubbles can be formed in the wastewater by the air supply slot plate, thereby performing flotation separation treatment on the floating impurities in the wastewater through the bubbles, thereby achieving the purification of the wastewater; at the same time, since the air supply slot plate follows the purification cylinder for circular motion, the air supply slot plate can achieve the purpose of continuous exhaust in the wastewater as the opening angle thereof continuously changes, that is, the air supply slot plate is always in an exhaust state during the movement of the wastewater, thereby making the bubbles distributed over a large area in the wastewater; and since the opening angle of the air supply slot plate changes gradually, combined with the effect of water pressure on the air, the volume of the bubbles discharged from the opening position of the air supply slot plate is small, thus achieving the working effect of small bubbles distributed over a large area in the wastewater, thereby effectively increasing the adsorption amount of impurities, facilitating comprehensive flotation treatment of the wastewater, and improving the wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 yes Figure 1 Right view structural diagram;

[0023] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of the medium purification cylinder;

[0024] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the middle purification cylinder;

[0025] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure of the middle air delivery slot plate;

[0026] Figure 6 yes Figure 2 A schematic diagram of the enlarged structure of the first curved slot plate and the second curved slot plate;

[0027] Figure 7 yes Figure 6 Left view structural diagram;

[0028] Markings in the attached drawings: 1. purification cylinder; 2. baffle; 3. water inlet pipe; 4. overflow pipe; 5. through port; 6. air supply trough plate; 7. partition; 8. slide chute; 9. arc-shaped sealing plate; 10. drain outlet; 11. drainage trough; 12. rotating shaft; 13. first connecting rod; 14. second connecting rod; 15. sliding column; 16. first arc-shaped trough plate; 17. second arc-shaped trough plate; 18. arc-shaped bottom support; 19. fixing plate; 20. motor; 21. gear; 22. feed trough plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0032] like Figures 1 to 5 As shown, the wastewater purification treatment device for pharmaceutical production of the present invention comprises:

[0033] The air flotation chamber is composed of a purification cylinder 1 and two baffles 2. The axis of the purification cylinder 1 is horizontal. Annular ribs are arranged on the openings on the left and right sides of the purification cylinder 1. The two baffles 2 are respectively arranged inside the two annular ribs, so that the baffles 2 block the opening of the purification cylinder 1, and the purification cylinder 1 rotates on the baffles 2.

[0034] An air dispersion mechanism, the air dispersion mechanism is composed of a plurality of air delivery slot plates 6;

[0035] Among them, a water inlet pipe 3 is connected to the baffle plate 2 on one side of the purification cylinder 1, and an overflow pipe 4 and a through port 5 are provided on the baffle plate 2 on the other side of the purification cylinder 1. The overflow pipe 4 is located above the through port 5. A plurality of air supply slots 6 are distributed in a ring shape on the circumferential inner wall of the purification cylinder 1. The cross-sectional shape of the air supply slot 6 is an arc. The axis of the air supply slot 6 is parallel to the axis of the purification cylinder 1. Both ends of the air supply slot 6 are blocked. The opening of the air supply slot 6 is located on its outer wall, and the direction of the opening of the air supply slot 6 is along the tangent direction of the air supply slot 6 following the circular motion of the purification cylinder 1.

[0036] Specifically, waste water is stored in the middle and lower part of the purification cylinder 1, and air is filled on the upper side of the purification cylinder 1. The purification cylinder 1 performs circular motion along its axis, and the purification cylinder 1 can drive multiple air supply slots 6 thereon to perform synchronous circular motion. In this way, when the opening of the air supply slot 6 faces downward and enters the water, the air in the air supply slot 6 cannot be discharged and carried into the water. As the air supply slot 6 continues to move, the angle of the opening of the air supply slot 6 keeps changing. At this time, the air in the air supply slot 6 will be continuously discharged into the water through the edge position of its opening, that is, the air supply slot 6 keeps moving in an arc while following the purification cylinder 1. The air dispersing work is carried out, and the wastewater in the purification cylinder 1 is continuously supplemented into the air delivery slot plate 6. Due to the effect of water pressure and the continuous change of the inclination angle of the air delivery slot plate 6, the volume of the bubbles discharged from the edge position of the air delivery slot plate 6 is small. Therefore, the air delivery slot plate 6 realizes continuous movement and uniform air dispersing in the wastewater, so that the bubbles can be evenly and widely distributed at the bottom of the wastewater, and the bubble volume is small, thereby realizing the flotation separation of impurities in the wastewater. The baffle plate 2 supports the purification cylinder 1 and blocks the opening of the purification cylinder 1. The air can flow on both sides of the inside and outside of the purification cylinder 1 through the overflow pipe 4.

[0037] When in use, waste water is introduced into the purification cylinder 1 through the baffle plate 2, and the purification cylinder 1 is rotated. The purification cylinder 1 carries multiple air delivery slots 6 thereon and rotates synchronously. The air delivery slots 6 press the air inside them into the water, and as the angle of the arc-shaped movement of the air delivery slots 6 changes continuously, the opening direction of the air delivery slots 6 changes continuously. At this time, the air in the air delivery slots 6 will be continuously discharged into the water through the edge position of its opening and form bubbles in the water. Due to the effect of water pressure and the squeezing of the bubbles by the edge position of the opening of the air delivery slots 6, the volume of the generated bubbles is avoided to be too large, so that the air delivery slots 6 can be A large number of bubbles are arranged in the wastewater, and the bubbles are small in size. The bubbles float in the wastewater and adsorb the floating impurities in the wastewater, thereby realizing the purification of the wastewater. As multiple air supply slots 6 continuously press air into the water, continuous flotation purification of the wastewater is realized. The purified wastewater flows toward the water inlet pipe 3 and is discharged through the water inlet pipe 3. At the same time, the water inlet pipe 3 can limit the amount of wastewater stored in the purification cylinder 1, and the setting of the overflow pipe 4 can enable air to flow on both sides of the purification cylinder 1, thereby replenishing air inside the purification cylinder 1.

[0038] Since the distribution area of ​​bubbles discharged from the air delivery slot plate 6 is related to the opening angle and opening size of the air delivery slot plate 6, it is necessary to make the diameter of the opening of the air delivery slot plate 6 occupy at most one-fourth of the circle where the cross-section of the air delivery slot plate 6 is located, and the direction of the opening of the air delivery slot plate 6 needs to be along the tangent direction of its circular motion. In this way, after the air delivery slot plate 6 enters the wastewater, as its opening angle continues to change, it can always achieve air dispersion, thereby increasing the bubble distribution area and the air storage capacity inside the air delivery slot plate 6, and avoiding the situation where the air inside the air delivery slot plate 6 is not discharged before it moves to the end of its stroke in the wastewater due to the opening angle of the air delivery slot plate 6 being too large.

[0039] By adopting the method of using the air supply slot plate 6 to carry air and press it into the wastewater, a large number of bubbles can be formed in the wastewater, so that the floating impurities in the wastewater are flotated and separated by the bubbles, thereby achieving the purification of the wastewater. At the same time, since the air supply slot plate 6 follows the purification cylinder 1 to perform circular motion, the air supply slot plate 6 can achieve the purpose of continuous exhaust in the wastewater as the opening angle thereof continues to change, that is, the air supply slot plate 6 is always in an exhaust state during the movement of the air supply slot plate 6 in the wastewater, so that the bubbles are distributed over a large area in the wastewater, and since the opening angle of the air supply slot plate 6 changes gradually, combined with the effect of water pressure on the air, the volume of the bubbles discharged from the opening position of the air supply slot plate 6 is small, thus achieving the working effect of small bubbles being distributed over a large area in the wastewater, thereby effectively increasing the adsorption amount of impurities, facilitating comprehensive flotation treatment of the wastewater, and improving the wastewater treatment effect.

[0040] Preferably, Figures 4 to 5 As shown, a partition 7 is provided inside the purification cylinder 1, and the partition 7 is located above the liquid level in the purification cylinder 1, and the two ends of the partition 7 are respectively fixed on the two baffles 2;

[0041] A slide groove 8 is opened inside the air supply groove plate 6, and an arc-shaped sealing plate 9 is slidably provided in the slide groove 8. The arc-shaped sealing plate 9 is coaxial with the air supply groove plate 6, and the sliding direction of the arc-shaped sealing plate 9 is along the circumferential direction of the axis of the air supply groove plate 6. The end of the arc-shaped sealing plate 9 slides out into the opening of the air supply groove plate 6, and the opening and closing of the air supply groove plate 6 can be controlled by the arc-shaped sealing plate 9.

[0042] Specifically, when the air delivery slot plate 6 rotates in the purification cylinder 1 to the side where the wastewater enters, the opening on the air delivery slot plate 6 is in an open state, that is, the arc-shaped sealing plate 9 does not block the opening of the air delivery slot plate 6. When the air delivery slot plate 6 is located in the purification cylinder 1 and rotates to the side where the wastewater is removed, the arc-shaped sealing plate 9 blocks the opening of the air delivery slot plate 6. At this time, the air delivery slot plate 6 and the arc-shaped sealing plate 9 act as a closed whole and move with the purification cylinder 1. The outer wall of the arc-shaped sealing plate 9 salvages the floating impurities floating on the liquid surface. Thereby, the floating impurities are separated from the liquid surface and move with the purification cylinder 1. When the arc sealing plate 9 moves to the top of the partition 7, the arc sealing plate 9 slides back into the slide groove 8. At this time, the opening of the air supply slot plate 6 is opened, and the impurities on the surface of the arc sealing plate 9 are separated from the arc sealing plate 9 and fall onto the partition 7 due to the blocking and scraping effect of the edge position of the opening of the air supply slot plate 6, thereby realizing the automatic cleaning of the floating impurities. At this time, the air supply slot plate 6 and the arc sealing plate 9 realize both the air supply work and the impurity salvage work.

[0043] Preferably, Figure 5 As shown, a drain port 10 is provided on the air supply trough plate 6, and the drain port 10 and the opening of the air supply trough plate 6 are located on both sides of the axis of the air supply trough plate 6. When the arc-shaped sealing plate 9 is located in the slide groove 8, the arc-shaped sealing plate 9 blocks the drain port 10. When the arc-shaped sealing plate 9 blocks the opening of the air supply trough plate 6, the drain port 10 is opened.

[0044] Specifically, when the air supply trough plate 6 carries air into the wastewater, the arc-shaped sealing plate 9 does not block the opening of the air supply trough plate 6. At this time, the arc-shaped sealing plate 9 slides into the slide groove 8 and blocks the drain port 10, thereby preventing air from being discharged through the drain port 10. When the arc-shaped sealing plate 9 moves out of the water surface and blocks the opening of the air supply trough plate 6, the drain port 10 opens, and the wastewater filled in the air supply trough plate 6 can be discharged through the drain port 10, thereby preventing the arc-shaped sealing plate 9 from opening the opening of the air supply trough plate 6 again, and the wastewater filled in the air supply trough plate 6 from falling onto the partition 7.

[0045] In actual use, when the arc-shaped sealing plate 9 seals and closes the opening of the air delivery slot plate 6, a gap for air flow is left between the end of the arc-shaped sealing plate 9 and the side wall of the opening of the air delivery slot plate 6, thereby facilitating the smooth discharge of waste water in the air delivery slot plate 6 through the drain port 10. The number of drain ports 10 can be set according to actual needs.

[0046] Preferably, Figure 5 As shown, a drainage groove 11 is opened on the circumferential outer wall of the arc-shaped sealing plate 9, and the position of the drainage groove 11 is aligned with the position of the drain outlet 10.

[0047] Specifically, when the arc-shaped sealing plate 9 stops sealing the opening of the air supply groove plate 6 and slides back into the slide groove 8, in order to avoid that there is still a lot of wastewater in the slide groove 8 after the arc-shaped sealing plate 9 blocks the drain outlet 10 and affects the normal resetting of the arc-shaped sealing plate 9, it is necessary to drain the wastewater in the slide groove 8 with the help of the connection relationship between the slide groove 8, the drainage groove 11 and the drain outlet 10, thereby ensuring the normal movement of the arc-shaped sealing plate 9 in the slide groove 8.

[0048] Preferably, Figure 3 and Figure 4 As shown, the upper surface of the partition 7 is set to be an arc, and the lower surface of the partition 7 is set to be an inclined surface, and the inclined surface is inclined toward the side where the air delivery slot plate 6 moves out of the water surface in the purification cylinder 1, and the partition 7 is inclined along the axis direction of the purification cylinder 1;

[0049] The through opening 5 is provided with a material conveying trough plate 22 .

[0050] Specifically, by setting the upper surface of the partition 7 as an arc surface and tilting the partition 7, impurities that fall onto the partition 7 can be gathered conveniently. By setting the lower surface of the partition 7 as an inclined surface, the floating impurities can be moved conveniently along the inclined surface toward the air supply groove plate 6 in the purification cylinder 1 to move out of the water surface, thereby facilitating the gathering of impurities and facilitating the salvage of the arc-shaped sealing plate 9.

[0051] Impurities accumulated on the upper surface of the partition plate 7 can be discharged through the through opening 5 and the feed trough plate 22.

[0052] Preferably, Figures 5 to 7 As shown, both ends of the air delivery slot plate 6 are rotatably provided with a rotating shaft 12, the rotating shaft 12 is coaxial with the air delivery slot plate 6, the rotating shaft 12 passes through the end of the air delivery slot plate 6 and the annular retaining edge of the purification cylinder 1 and extends to the outside of the purification cylinder 1, the rotating shaft 12 rotates on the air delivery slot plate 6 and the purification cylinder 1, one end of the rotating shaft 12 is fixed with a first connecting rod 13, the first connecting rod 13 is fixedly connected to the arc-shaped sealing plate 9, and the other end of the rotating shaft 12 is fixed with a second connecting rod 14, and the second connecting rod 14 is provided with a sliding column 15;

[0053] Both ends of the purification cylinder 1 are provided with annular groove plates, and the annular groove plates are separated from the purification cylinder 1. The annular groove plates are composed of a first arc groove plate 16 and a second arc groove plate 17. The circle where the first arc groove plate 16 is located is located outside the circle where the second arc groove plate 17 is located. The first arc groove plate 16, the second arc groove plate 17 and the purification cylinder 1 are coaxial, and the sliding column 15 is slidably installed in the annular groove plate.

[0054] Specifically, when the purification cylinder 1 rotates, the purification cylinder 1 can drive the second connecting rod 14 and the sliding column 15 to slide in the annular groove plate through the rotating shaft 12. Since the circle where the first arc groove plate 16 is located is located outside the circle where the second arc groove plate 17 is located, when the sliding column 15 slides between the first arc groove plate 16 and the second arc groove plate 17, the sliding column 15 will drive the rotating shaft 12 to rotate through the second connecting rod 14, thereby driving the arc sealing plate 9 to slide in the slide groove 8 through the first connecting rod 13, thereby adjusting the position of the arc sealing plate 9. When the sliding column 15 slides in the first arc groove plate 16, the arc sealing plate 9 slides into the slide groove 8, and the opening of the air supply groove plate 6 is in an open state. When the sliding column 15 slides in the second arc groove plate 17, the arc sealing plate 9 blocks the opening of the air supply groove plate 6.

[0055] Preferably, Figure 1 As shown, it also includes an arc-shaped base 18, and the purification cylinder 1 is rotatably installed in the arc-shaped base 18. A fixing plate 19 is fixed on the baffle 2, and the fixing plate 19 is fixed on the outer wall of the arc-shaped base 18. The annular groove plate is fixed on the fixing plate 19.

[0056] Specifically, the arc-shaped base 18 and the fixing plate 19 can support the purification cylinder 1 and the baffle plate 2, and the fixing plate 19 can support and fix the annular groove plate.

[0057] Preferably, Figure 1 As shown, an annular tooth groove is provided on the circumferential outer wall of the purification cylinder 1, a motor 20 is provided on the arc-shaped base 18, and a gear 21 is provided at the output end of the motor 20, which meshes with the teeth in the tooth groove on the purification cylinder 1.

[0058] Specifically, the motor 20 can drive the purification cylinder 1 to rotate through the gear 21 and the teeth in the tooth grooves on the purification cylinder 1, thereby providing power for the purification cylinder 1.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A wastewater purification device for pharmaceutical production, characterized in that: include: An air flotation chamber, the air flotation chamber is composed of a purification cylinder (1) and two baffles (2), the axis of the purification cylinder (1) is horizontal, annular baffles are provided on the openings on the left and right sides of the purification cylinder (1), and the two baffles (2) are respectively arranged inside the two annular baffles, so that the baffles (2) block the opening of the purification cylinder (1), and the purification cylinder (1) rotates on the baffles (2); An air dispersion mechanism, the air dispersion mechanism being composed of a plurality of air delivery slot plates (6); A water inlet pipe (3) is connected to a baffle plate (2) on one side of the purification cylinder (1), an overflow pipe (4) and a through port (5) are provided on the baffle plate (2) on the other side of the purification cylinder (1), the overflow pipe (4) is located above the through port (5), a plurality of air supply slots (6) are distributed in an annular shape on the circumferential inner wall of the purification cylinder (1), the cross-sectional shape of the air supply slots (6) is an arc, the axis of the air supply slots (6) is parallel to the axis of the purification cylinder (1), both ends of the air supply slots (6) are blocked, the opening of the air supply slots (6) is located on the outer wall thereof, and the direction of the opening of the air supply slots (6) is along the tangent direction of the air supply slots (6) following the circumferential motion of the purification cylinder (1).

2. The wastewater purification device for pharmaceutical production according to claim 1, characterized in that: The purification cylinder (1) is provided with a partition (7) inside, the partition (7) is located above the liquid level in the purification cylinder (1), and the two ends of the partition (7) are respectively fixed on the two baffles (2); A slide groove (8) is provided inside the air delivery groove plate (6), and an arc-shaped sealing plate (9) is slidably provided inside the slide groove (8). The arc-shaped sealing plate (9) is coaxial with the air delivery groove plate (6), and the sliding direction of the arc-shaped sealing plate (9) is along the circumferential direction of the axis of the air delivery groove plate (6). The end of the arc-shaped sealing plate (9) slides and extends into the opening of the air delivery groove plate (6), and the opening and closing of the air delivery groove plate (6) can be controlled by the arc-shaped sealing plate (9).

3. The wastewater purification device for pharmaceutical production according to claim 2, characterized in that: The air delivery slot plate (6) is provided with a drainage port (10), and the drainage port (10) and the opening of the air delivery slot plate (6) are located on both sides of the axis of the air delivery slot plate (6). When the arc-shaped sealing plate (9) is located in the slide groove (8), the arc-shaped sealing plate (9) blocks the drainage port (10), and when the arc-shaped sealing plate (9) blocks the opening of the air delivery slot plate (6), the drainage port (10) is opened.

4. The wastewater purification device for pharmaceutical production according to claim 3, characterized in that: A drainage groove (11) is provided on the circumferential outer wall of the arc-shaped sealing plate (9), and the position of the drainage groove (11) is aligned with the position of the drainage outlet (10).

5. The wastewater purification device for pharmaceutical production according to claim 4, characterized in that: The upper surface of the partition (7) is arranged in an arc shape, and the lower surface of the partition (7) is arranged in an inclined surface, and the inclined surface is inclined toward the side where the air delivery slot plate (6) moves out of the water surface in the purification cylinder (1), and the partition (7) is inclined along the axial direction of the purification cylinder (1); The through opening (5) is provided with a material conveying trough plate (22).

6. The wastewater purification device for pharmaceutical production according to claim 5, characterized in that: Both ends of the air delivery slot plate (6) are rotatably provided with a rotating shaft (12), the rotating shaft (12) is coaxial with the air delivery slot plate (6), the rotating shaft (12) passes through the end of the air delivery slot plate (6) and the annular retaining edge of the purification cylinder (1) and extends to the outside of the purification cylinder (1), the rotating shaft (12) rotates on the air delivery slot plate (6) and the purification cylinder (1), one end of the rotating shaft (12) is fixed with a first connecting rod (13), the first connecting rod (13) is fixedly connected to the arc-shaped sealing plate (9), the other end of the rotating shaft (12) is fixed with a second connecting rod (14), and the second connecting rod (14) is provided with a sliding column (15); Both ends of the purification cylinder (1) are provided with an annular groove plate, and the annular groove plate is separated from the purification cylinder (1), and the annular groove plate is composed of a first arc-shaped groove plate (16) and a second arc-shaped groove plate (17), the circle where the first arc-shaped groove plate (16) is located is located outside the circle where the second arc-shaped groove plate (17) is located, the first arc-shaped groove plate (16), the second arc-shaped groove plate (17) and the purification cylinder (1) are coaxial, and the sliding column (15) is slidably installed in the annular groove plate.

7. The wastewater purification device for pharmaceutical production according to claim 6, characterized in that: It also includes an arc-shaped base (18), the purification cylinder (1) is rotatably mounted in the arc-shaped base (18), a fixing plate (19) is fixed on the baffle (2), the fixing plate (19) is fixed on the outer wall of the arc-shaped base (18), and the annular groove plate is fixed on the fixing plate (19).

8. The wastewater purification device for pharmaceutical production according to claim 7, characterized in that: An annular tooth groove is provided on the circumferential outer wall of the purification cylinder (1), a motor (20) is provided on the arc-shaped base (18), a gear (21) is provided at the output end of the motor (20), and the gear (21) meshes with the teeth in the tooth groove on the purification cylinder (1).

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