Biopharmaceutical wastewater treatment device

Abstract

The application relates to the technical field of wastewater treatment equipment, and discloses a biological pharmaceutical wastewater treatment equipment, which comprises a tank body, a filter plate assembly is arranged in the middle part of the inner cavity of the tank body, the filter plate assembly comprises an inner shell body which is in sliding frictional contact with the inner wall of the tank body, a filter screen is fixedly installed at the bottom end of the inner shell body through an annular buckle, a connecting rod is fixedly installed at the top end of the inner shell body, the top end of the connecting rod is in transmission connection with an output shaft of a hydraulic cylinder group fixedly installed at the top of the tank body, a liquid inlet pipeline is fixedly installed on one side of the middle part of the outer surface of the tank body and communicates with the inner cavity of the tank body, and a first through groove is formed in the middle part of the outer surface of the inner shell body. The biological pharmaceutical wastewater treatment equipment is provided with the filter plate assembly and the structure arranged on the filter plate assembly, the filter screen is made to vibrate by changing the direction of the arc-shaped curved surface of the filter screen, the flocculation pollutants filtered out are shaken off, the filter screen is prevented from being blocked, and the filtering effect and the working efficiency of the pharmaceutical wastewater are effectively improved.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment equipment technology, and in particular to a biopharmaceutical wastewater treatment equipment. Background Technology

[0002] In the process of biopharmaceutical manufacturing, a large amount of complex pharmaceutical wastewater (including unreacted raw materials, intermediates, and solvents) and highly polluting is generated during drug synthesis, extraction, and purification. If discharged directly without treatment, it will have a serious impact on the ecological environment. Therefore, the design and application of pharmaceutical wastewater treatment equipment is of great significance for environmental protection. Coagulation filtration is one of the important methods for removing suspended solids and impurities from pharmaceutical wastewater. Chemical agents are added to the wastewater to cause colloids and suspended solids to aggregate into flocs, which are then removed by filtration. However, in the process of filtering pharmaceutical wastewater, existing filtration devices are prone to clogging of the filter pores as the flocs accumulate on the filter plate system. This significantly affects the filtration effect and efficiency of the filter plate system. Furthermore, the clogging reduces the output of pharmaceutical wastewater, which, with a constant input volume, can easily lead to increased internal pressure in the wastewater treatment equipment, posing a significant safety hazard and exhibiting poor stability and reliability.

[0003] Therefore, there is an urgent need for a filtration device for pharmaceutical wastewater treatment equipment to solve the defects of the existing filtration devices in actual use. Summary of the Invention

[0004] This application proposes a biopharmaceutical wastewater treatment device, which has the advantage of effectively preventing the filter plate system in the filter device from becoming clogged. This solves the problem that in the process of filtering pharmaceutical wastewater, existing filter devices are prone to clogging the filter pores as flocculent pollutants accumulate on the filter plate system, which greatly affects the filtration effect and working efficiency of the filter plate system for pharmaceutical wastewater.

[0005] To achieve the above objectives, this application adopts the following technical solution: a biopharmaceutical wastewater treatment device, comprising a tank for filtering pharmaceutical wastewater containing added chemical agents, a filter plate assembly provided in the middle of the inner cavity of the tank, the filter plate assembly including an inner shell whose outer wall is in sliding frictional contact with the inner wall of the tank, a filter screen for filtering pharmaceutical wastewater fixedly installed at the bottom end of the inner shell by a ring buckle, a connecting rod fixedly installed at the top end of the inner shell, and the top end of the connecting rod being drively connected to the output shaft of a hydraulic cylinder assembly fixedly installed at the top of the tank, and driven by the hydraulic cylinder assembly... The inner shell and its filter screen can move up and down accordingly. A liquid inlet pipe is fixedly installed on one side of the middle of the outer surface of the tank, which is connected to the inner cavity. The other end of the liquid inlet pipe is connected to the pharmaceutical wastewater conveying pipeline system, so as to transport the pharmaceutical wastewater treated in the previous process to the inner cavity of the tank. Several sets of first through grooves connected to the inner cavity are opened in the middle of the outer surface of the inner shell. The first through grooves overlap and connect with the annular through grooves arranged on the tank. The pharmaceutical wastewater filtered by the filter screen is discharged through the first through grooves and the annular through grooves to enter the next processing step. When it is necessary to filter the pharmaceutical wastewater at the bottom of the tank cavity, the hydraulic cylinder group is activated and the filter plate assembly and its structure are moved downward until the filter screen on the filter plate assembly comes into contact with the pharmaceutical wastewater. Due to the pressure of the pharmaceutical wastewater, it bulges upward to form an arc-shaped curved structure. As the filter plate assembly moves downward, it can force the liquid level of the pharmaceutical wastewater to gradually rise and filter the pharmaceutical wastewater. In this way, the flocculent pollutants are filtered and collected below the filter screen. The filtered pharmaceutical wastewater is discharged through the first channel and the annular channel due to the rise in liquid level. Then, the hydraulic cylinder group is activated, driving the filter plate assembly and its structure to move upward. As the filter screen moves away from the pharmaceutical wastewater, it is no longer squeezed. Under the action of gravity, the filter screen naturally falls and forms a downward-concave arc-shaped curved surface structure. As the direction of the arc-shaped curved surface of the filter screen changes, it causes a shaking phenomenon, which shakes off the filtered flocculent pollutants and prevents them from clogging the filter screen. This effectively improves its filtration effect and working efficiency for pharmaceutical wastewater. At the same time, it does not cause the problem of increased pressure in the inner cavity of the tank due to filter screen clogging, and has high safety and reliability.

[0006] Furthermore, a cleaning assembly is provided at the bottom of the inner cavity of the tank. The cleaning assembly includes a hollow shaft fixedly installed at the bottom of the tank. A linkage shaft is slidably sleeved on the top of the outer surface of the hollow shaft, and a spring is provided at the bottom of the outer surface of the hollow shaft to elastically connect the linkage shaft to the bottom of the inner cavity of the tank. Three sets of scrapers arranged in a circular array are fixedly installed on the top of the outer surface of the linkage shaft. Simultaneously, a linkage groove arranged in a spiral structure is formed on the top of the outer surface of the hollow shaft, and a linkage ball is provided at the bottom of the inner wall of the linkage shaft to roll and rub against the linkage groove, thereby... When the top of the linkage shaft moves downward due to the pressure of the filter screen, the linkage groove and the linkage ball drive the linkage shaft and its scraper to rotate counterclockwise. While the filter screen filters the pharmaceutical wastewater, the counterclockwise rotating scraper removes the flocculent pollutants that have been filtered and accumulated at the bottom, further preventing the filter screen from clogging. When the filter plate assembly moves upward, the top of the linkage shaft is no longer under force. Under the elastic force of the spring, the linkage shaft is automatically forced to move clockwise upward along the track of the linkage groove and return to its initial position.

[0007] Furthermore, the trajectory surface formed by the linkage shaft and the top of the scraper when rotating counterclockwise is the same as the arc surface formed by the upward bulge of the filter screen due to the pressure of pharmaceutical wastewater. This ensures the fit between the top of the scraper and the bottom of the filter screen, resulting in a better and more efficient scraping effect on the flocculent pollutants filtered and accumulated at the bottom of the filter screen.

[0008] Furthermore, a protrusion is fixedly installed on one side of the top of the scraper, arranged along its arc-shaped surface trajectory, and a groove structure is formed at the top of the scraper to collect the scraped flocculent pollutants and prevent them from falling back into the pharmaceutical wastewater at the bottom of the tank cavity.

[0009] Furthermore, a limiting guide rod is provided on the protrusion, and a sludge removal block is slidably sleeved on the limiting guide rod. One end of the sludge removal block is fixedly connected to the end of the scraper through an elastic rope, and the other end of the sludge removal block is fixedly connected to the top of the hollow shaft through a connecting rope. Initially, the sludge removal block is located on the side close to the linkage shaft, and the elastic rope is in an elastically stretched state. A second through groove is opened inside the linkage shaft, one end of which is connected to the top of the scraper and the other end is connected to its inner cavity. A third through groove is opened at the top of the outer surface of the hollow shaft, which is connected to its inner cavity. Furthermore, when the linkage shaft moves counterclockwise downwards, the relative distance between the scraper and the top of the hollow shaft decreases. Under the action of the elastic rope, the dredging block moves outwards. When the linkage shaft moves clockwise upwards, the relative distance between the scraper and the top of the hollow shaft increases. Under the action of the connecting rope, the dredging block is forced to move inwards and return to its initial position. At the same time, the flocculent pollutants scraped and collected in the slot are squeezed and transported to the second channel and discharged through the third channel and the hollow shaft.

[0010] Furthermore, a vibrating plate with an outer diameter smaller than the inner diameter of the tank is fixedly installed in the middle of the outer surface of the linkage shaft. By setting the vibrating plate, the pharmaceutical wastewater at the bottom of the inner cavity of the tank can be stirred during the counterclockwise downward movement of the linkage shaft, thereby preventing the deposition of flocculent pollutants.

[0011] Furthermore, the liquid level of the pharmaceutical wastewater delivered into the tank cavity by the inlet pipe is always lower than the horizontal plane of the annular channel, and initially, the bottom end of the filter plate assembly is located below the horizontal plane of the annular channel, thereby ensuring that the pharmaceutical wastewater in the tank cavity will not be discharged directly without being filtered by the filter screen on the filter plate assembly.

[0012] The beneficial effects of this invention are as follows: 1. The biopharmaceutical wastewater treatment equipment provided in this application utilizes the change in the direction of the arc-shaped curved surface of the filter screen to cause it to shake, thereby shaking off the filtered flocculent pollutants and preventing them from clogging the filter screen. This effectively improves the filtration effect and working efficiency of the pharmaceutical wastewater, and at the same time, it avoids the problem of increased pressure in the inner cavity of the tank due to filter screen clogging.

[0013] 2. The biopharmaceutical wastewater treatment equipment provided in this application, regarding the arrangement of the cleaning components and their structures, when the top of the linkage shaft moves downward due to the pressure of the filter screen, under the transmission action of the linkage groove and the linkage ball, the linkage shaft and its scraper can be forced to rotate counterclockwise. While the filter screen filters the pharmaceutical wastewater, the counterclockwise rotating scraper can scrape off the flocculent pollutants filtered and accumulated at its bottom, further preventing the phenomenon of clogging the filter screen.

[0014] 3. The biopharmaceutical wastewater treatment equipment provided in this application, regarding the arrangement of the scraper and its structure, when the linkage shaft moves counterclockwise spiral downwards, the relative distance between the scraper and the top of the hollow shaft decreases. Under the action of the elastic rope, the sludge removal block moves outwards. Conversely, when the linkage shaft moves clockwise spiral upwards, the relative distance between the scraper and the top of the hollow shaft increases. Under the action of the connecting rope, the sludge removal block is forced to move inwards and return to its initial position. Simultaneously, the flocculent pollutants scraped and accumulated in the slot are squeezed and transported to the second channel and discharged through the third channel and the hollow shaft. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front view of the structure of the present invention; Figure 3 This is a schematic diagram of the filter plate assembly of the present invention; Figure 4 This is a schematic diagram of the cleaning component of the present invention; Figure 5 The structure of this invention Figure 2 Sectional view at point AA.

[0016] In the diagram: 1-Tank body, 2-Filter plate assembly, 3-Inner shell, 4-Filter screen, 5-Annular buckle, 6-First through groove, 7-Connecting rod, 8-Hydraulic cylinder assembly, 9-Annular through groove, 10-Inlet pipe, 11-Cleaning assembly, 12-Hollow shaft, 13-Linkage shaft, 14-Spring, 15-Scraper, 16-Limiting guide rod, 17-Sludge removal block, 18-Linkage groove, 19-Linkage ball, 20-Second through groove, 21-Third through groove, 22-Vibrating plate. Detailed Implementation

[0017] 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.

[0018] like Figure 1 , Figure 3As shown, a biopharmaceutical wastewater treatment device includes a tank 1 for filtering pharmaceutical wastewater containing added chemical agents. A filter plate assembly 2 is located in the middle of the inner cavity of the tank 1. The filter plate assembly 2 includes an inner shell 3 whose outer wall slides and rubs against the inner wall of the tank 1. A filter screen 4 for filtering the pharmaceutical wastewater is fixedly installed at the bottom end of the inner shell 3 via a ring buckle 5. A connecting rod 7 is fixedly installed at the top end of the inner shell 3, and the top end of the connecting rod 7 is connected to the output shaft of a hydraulic cylinder group 8 fixedly installed at the top of the tank 1. Under the driving action of the hydraulic cylinder group 8, the inner shell 3 and its components can be driven... The filter screen 4 moves up and down accordingly. A liquid inlet pipe 10 is fixedly installed on one side of the middle of the outer surface of the tank 1, which connects to the inner cavity. The other end of the liquid inlet pipe 10 is connected to the pharmaceutical wastewater conveying pipeline system, thereby conveying the pharmaceutical wastewater treated in the previous process to the inner cavity of the tank 1. Several sets of first through grooves 6 are opened in the middle of the outer surface of the inner shell 3, which connect to the inner cavity. The first through grooves 6 overlap and connect with the annular through grooves 9 arranged on the tank 1. The pharmaceutical wastewater filtered by the filter screen 4 is discharged through the first through grooves 6 and the annular through grooves 9 to enter the next processing step. When it is necessary to filter the pharmaceutical wastewater at the bottom of the inner cavity of the tank 1, the hydraulic cylinder group 8 is started and the filter plate assembly 2 and its structure are moved downward until the filter screen 4 on the filter plate assembly 2 comes into contact with the pharmaceutical wastewater. Due to the pressure of the pharmaceutical wastewater, it bulges upward to form an arc-shaped curved surface structure. As the filter plate assembly 2 moves downward, it can force the liquid level of the pharmaceutical wastewater to gradually rise and filter the pharmaceutical wastewater. In this way, the flocculent pollutants are filtered and collected below the filter screen 4. The filtered pharmaceutical wastewater is discharged through the first channel 6 and the annular channel 9 due to the rise in liquid level. Then, the hydraulic cylinder group 8 is activated, which drives the filter plate assembly 2 and its structure to move upward. As the filter screen 4 moves away from the pharmaceutical wastewater, it is no longer squeezed. Under the action of gravity, the filter screen 4 falls naturally and forms a downward-concave arc-shaped curved surface structure. As the direction of the arc-shaped curved surface of the filter screen 4 changes, it causes a shaking phenomenon, which shakes off the filtered flocculent pollutants and prevents them from clogging the filter screen 4. This effectively improves its filtration effect and working efficiency for pharmaceutical wastewater. At the same time, it does not cause the pressure in the inner cavity of the tank 1 to increase due to the clogging of the filter screen 4, thus ensuring high safety and reliability.

[0019] like Figure 1 , Figure 4 as well as Figure 5As shown, in this technical solution, a cleaning assembly 11 is provided at the bottom of the inner cavity of the tank 1. The cleaning assembly 11 includes a hollow shaft 12 fixedly installed at the bottom of the tank 1. A linkage shaft 13 is slidably sleeved on the top of the outer surface of the hollow shaft 12, and a spring 14 is provided at the bottom of the outer surface of the hollow shaft 12 to elastically connect the linkage shaft 13 with the bottom of the inner cavity of the tank 1. Three sets of scrapers 15 arranged in a ring array are fixedly installed on the top of the outer surface of the linkage shaft 13. At the same time, a linkage groove 18 arranged in a spiral structure is opened on the top of the outer surface of the hollow shaft 12, and a linkage ball 19 that rolls and rubs against the linkage groove 18 is provided at the bottom of the inner wall of the linkage shaft 13. When the top of the linkage shaft 13 is squeezed downward by the filter screen 4, the linkage groove 18 and the linkage ball 19 will drive the linkage shaft 13 and the scraper 15 on it to rotate counterclockwise. While the filter screen 4 is filtering the pharmaceutical wastewater, the scraper 15, which rotates counterclockwise, can scrape off the flocculent pollutants that are filtered and accumulated at the bottom, further preventing the filter screen 4 from being blocked. When the filter plate assembly 2 moves upward, the top of the linkage shaft 13 is no longer under force. Under the elastic force of the spring 14, the linkage shaft 13 can be automatically forced to move clockwise upward along the track of the linkage groove 18 and return to the initial position.

[0020] In this technical solution, the trajectory surface formed by the top of the linkage shaft 13 and the scraper 15 when rotating counterclockwise is the same as the arc surface formed by the upward bulge of the filter screen 4 due to the pressure of pharmaceutical wastewater. This ensures the fit between the top of the scraper 15 and the bottom of the filter screen 4, resulting in a better and more efficient scraping effect on the flocculent pollutants filtered and accumulated at the bottom of the filter screen 4.

[0021] like Figure 1 , Figure 4 as well as Figure 5 As shown, in this technical solution, a protrusion is fixedly installed on one side of the top of the scraper 15 along its arc-shaped curved surface trajectory, and a slot structure is formed at the top of the scraper 15 to collect the scraped flocculent pollutants and prevent them from falling back into the pharmaceutical wastewater at the bottom of the inner cavity of the tank 1.

[0022] In this technical solution, a limiting guide rod 16 is provided on the protrusion, and a dredging block 17 is slidably sleeved on the limiting guide rod 16. One end of the dredging block 17 is fixedly connected to the end of the scraper 15 through an elastic rope, and the other end of the dredging block 17 is fixedly connected to the top of the hollow shaft 12 through a connecting rope. Initially, the dredging block 17 is located on the side close to the linkage shaft 13, and the elastic rope is in an elastic tension state. A second through groove 20 is opened inside the linkage shaft 13, one end of which is connected to the top of the scraper 15 and the other end is connected to its inner cavity. A third through groove 21 is opened at the top of the outer surface of the hollow shaft 12, which is connected to its inner cavity. Furthermore, when the linkage shaft 13 moves counterclockwise spiral downwards, the relative distance between the scraper 15 and the top of the hollow shaft 12 decreases. Under the action of the elastic rope, the dredging block 17 moves outwards. When the linkage shaft 13 moves clockwise spiral upwards, the relative distance between the scraper 15 and the top of the hollow shaft 12 increases. Under the action of the connecting rope, the dredging block 17 is forced to move inwards and return to its initial position. At the same time, the flocculent pollutants scraped and collected in the slot are squeezed and transported to the second channel 20 and discharged through the third channel 21 and the hollow shaft 12.

[0023] like Figure 2 , Figure 4 As shown, in this technical solution, a vibrating plate 22 with an outer diameter smaller than the inner diameter of the tank 1 is fixedly installed in the middle of the outer surface of the linkage shaft 13. By setting the vibrating plate 22, the pharmaceutical wastewater at the bottom of the inner cavity of the tank 1 can be stirred during the counterclockwise downward movement of the linkage shaft 13, thereby preventing the deposition of flocculent pollutants.

[0024] In this technical solution, the liquid level of the pharmaceutical wastewater conveyed by the inlet pipe 10 to the inner cavity of the tank 1 is always lower than the horizontal plane of the annular channel 9. Initially, the bottom end of the filter plate assembly 2 is located below the horizontal plane of the annular channel 9, thereby ensuring that the pharmaceutical wastewater in the inner cavity of the tank 1 will not be discharged directly without being filtered by the filter screen 4 on the filter plate assembly 2.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A biopharmaceutical wastewater treatment device, comprising a tank (1), wherein a filter plate assembly (2) is provided in the middle of the inner cavity of the tank (1), characterized in that: The filter plate assembly (2) includes an inner shell (3) whose outer wall is in sliding friction contact with the inner wall of the tank (1). The bottom end of the inner shell (3) is fixedly installed with a filter screen (4) by a ring buckle (5). The top end of the inner shell (3) is fixedly installed with a connecting rod (7), and the top end of the connecting rod (7) is connected to the output shaft of the hydraulic cylinder group (8) fixedly installed on the top of the tank (1). A liquid inlet pipe (10) communicating with its inner cavity is fixedly installed on one side of the middle of the outer surface of the tank (1). A first through groove (6) communicating with its inner cavity is opened in the middle of the outer surface of the inner shell (3), and the first through groove (6) and the ring through groove (9) arranged on the tank (1) overlap and communicate with each other. The bottom of the inner cavity of the tank (1) is provided with a cleaning component (11). The cleaning component (11) includes a hollow shaft (12) fixedly installed at the bottom of the tank (1). A linkage shaft (13) is slidably sleeved on the top of the outer surface of the hollow shaft (12). A spring (14) is provided at the bottom of the outer surface of the hollow shaft (12) so that the linkage shaft (13) is elastically connected to the bottom of the inner cavity of the tank (1). A scraper (15) is fixedly installed on the top of the outer surface of the linkage shaft (13). Meanwhile, a linkage groove (18) with a spiral structure is opened on the top of the outer surface of the hollow shaft (12). A linkage ball (19) that rolls and rubs against the linkage groove (18) is provided at the bottom of the inner wall of the linkage shaft (13). A protrusion arranged along its arc-shaped curved surface is fixedly installed on one side of the top of the scraper (15), and a slot structure is formed at the top of the scraper (15). A limiting guide rod (16) is provided on the protrusion, and a sludge removal block (17) is slidably sleeved on the limiting guide rod (16). One end of the sludge removal block (17) is fixedly connected to the end of the scraper (15) through an elastic rope, and the other end of the sludge removal block (17) is fixedly connected to the top of the hollow shaft (12) through a connecting rope. Initially, the sludge removal block (17) is located on the side close to the linkage shaft (13), and the elastic rope is in an elastic tension state. The linkage shaft (13) has a second through groove (20) with one end connected to the top of the scraper (15) and the other end connected to its inner cavity. The top of the outer surface of the hollow shaft (12) has a third through groove (21) connected to its inner cavity. When it is necessary to filter the pharmaceutical wastewater at the bottom of the inner cavity of the tank (1), start the hydraulic cylinder group (8) and drive the filter plate assembly (2) and its structure to move downward until the filter screen (4) on the filter plate assembly (2) comes into contact with the pharmaceutical wastewater and bulges upward due to the pressure of the pharmaceutical wastewater to form an arc-shaped curved structure. Then the hydraulic cylinder group (8) is started and the filter plate assembly (2) and its structure move upward. As the filter screen (4) moves away from the pharmaceutical wastewater, it is no longer squeezed. Under the action of gravity, the filter screen (4) falls naturally and forms a downward concave arc-shaped curved surface structure.

2. The biopharmaceutical wastewater treatment equipment according to claim 1, characterized in that, The trajectory surface formed by the top of the linkage shaft (13) and the scraper (15) when rotating counterclockwise is the same as the arc surface formed by the filter screen (4) being squeezed by pharmaceutical wastewater.

3. The biopharmaceutical wastewater treatment equipment according to claim 2, characterized in that, A vibrating plate (22) with an outer diameter smaller than the inner diameter of the tank body (1) is fixedly installed in the middle of the outer surface of the linkage shaft (13).

4. The biopharmaceutical wastewater treatment equipment according to claim 1, characterized in that, The liquid level of the pharmaceutical wastewater transported by the inlet pipe (10) into the inner cavity of the tank (1) is always lower than the horizontal plane of the annular channel (9), and initially, the bottom end of the filter plate assembly (2) is located below the horizontal plane of the annular channel (9).

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