A fluorine-containing wastewater treatment device

Abstract

This utility model discloses a fluoride-containing wastewater treatment device, relating to the field of wastewater treatment technology. Specifically, it includes a reaction mixing section and a filtration section. The reaction mixing section includes a shell, with a turbine mounted on the top of the shell. A rotor is movably connected to the middle of the turbine. A fluoride-containing wastewater inlet pipe is located at the inlet end of the turbine, and a fluoride-containing wastewater outlet pipe is located at the outlet end of the turbine. A reagent addition pipe is located in the middle of the fluoride-containing wastewater outlet pipe, and the bottom end of the fluoride-containing wastewater outlet pipe extends into the inner cavity of the shell. A stirring structure is located in the middle of the inner cavity of the shell. This application utilizes the turbine to convert the kinetic energy of the fluoride-containing wastewater into mechanical energy, driving the stirring structure to rotate, thus reducing the energy consumption of the device. Furthermore, it can separate different batches of wastewater, avoiding cross-mixing of wastewater from different reaction stages, and can precisely control the reaction time between wastewater and reagents, improving the treatment effect and efficiency of fluoride-containing wastewater.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a fluoride-containing wastewater treatment device. Background Technology

[0002] Fluoride-containing wastewater refers to industrial or domestic wastewater containing fluorides. Currently, the main methods for treating fluoride-containing wastewater include ion exchange, chemical precipitation, reverse osmosis, and electrochemical methods. Among these, chemical precipitation is widely used due to its simple operation and low cost. This method involves adding reagents (such as calcium salts or aluminum salts) to the wastewater, causing fluoride ions to react with the reagents to form insoluble precipitates, which are then removed through solid-liquid separation. After the reagents are added, they are usually thoroughly mixed with the fluoride-containing wastewater in a container. However, the mixing time between different batches of wastewater and reagents varies, and mixing different batches of wastewater together affects the treatment efficiency of the fluoride-containing wastewater. Furthermore, during the filtration process, solid precipitates tend to accumulate on the filter screen surface, leading to a decrease in filtration efficiency and affecting the filtration effect. Based on this, this application proposes a fluoride-containing wastewater treatment device. Utility Model Content

[0003] This invention provides a fluoride-containing wastewater treatment device, which solves the problems mentioned in the background art, such as different batches of wastewater being mixed with reagents at different times, resulting in different batches of wastewater being mixed together, affecting the treatment efficiency of fluoride-containing wastewater; and solid precipitates easily accumulating on the filter screen surface during the filtration process, affecting the filtration effect.

[0004] This utility model provides the following technical solution: a fluoride-containing wastewater treatment device, comprising a reaction mixing section and a filtration section. The reaction mixing section includes a shell, a turbine is provided at the top of the shell, a rotor is movably connected to the middle of the turbine, a fluoride-containing wastewater inlet pipe is provided at the inlet end of the turbine, a fluoride-containing wastewater outlet pipe is provided at the outlet end of the turbine, a reagent addition pipe is provided in the middle of the fluoride-containing wastewater outlet pipe, and the bottom end of the fluoride-containing wastewater outlet pipe extends to the inner cavity of the shell. A stirring structure is provided in the middle of the inner cavity of the shell. The stirring structure includes an active stirring rod, a driven stirring rod, and a transmission stirring rod connected to the bottom middle of the rotor. The active stirring rod and the driven stirring rod, two adjacent driven stirring rods, the transmission stirring rod, and the adjacent driven stirring rod are all connected by connecting rods. Stirring blades are uniformly arranged on the outer surface of the stirring structure. Rotational separation components are provided at the bottom ends of the active stirring rod and the driven stirring rods. A fixed separation component is provided at the bottom end of the inner cavity of the shell.

[0005] Preferably, the rotating separation assembly includes a first driving structure, a sealing plate connected to the end of the output shaft of the first driving structure, and an isolation plate connected to the stirring structure. The isolation plate is movably connected to the inner cavity of the shell, and both the isolation plate and the sealing plate are provided with through holes.

[0006] Preferably, the fixed partition assembly includes a fixed plate connected to the bottom end of the inner cavity of the housing, and a sealing plate is connected to the bottom of the fixed plate through a second driving structure. Both the fixed plate and the sealing plate are provided with through holes.

[0007] Preferably, a third driving structure is provided at the center of the top of the fixed plate, the end of the output shaft of the third driving structure is in contact with the bottom of the transmission stirring rod, and an electromagnet is provided at the bottom of the transmission stirring rod.

[0008] Preferably, the discharge end of the reaction mixing section is connected to the feed end of the filtration section. The filtration section includes a filter box, and a filter belt is movably connected to the top of the inner cavity of the filter box. Filter grooves are uniformly arranged on the outer wall of the filter belt. A liquid collection tank and a blower are arranged on the inner side of the straight section of the filter belt. The liquid collection tank is located below the reaction mixing section. A first drain pipe is provided at the liquid discharge end of the liquid collection tank. One end of the first drain pipe extends to the outside of the filter box. The air outlet end of the blower contacts the top of the lower straight section of the filter belt. A second drain pipe is provided on one side of the bottom of the filter box. An impurity draining screen is provided between the filter belt and the second drain pipe. The impurity draining screen is fixedly connected to the filter box.

[0009] Preferably, an exhaust window is provided on one side of the filter box, and an opening and closing door is provided on one side of the filter box; the bottom of the inner cavity of the liquid collection tank is inclined, and the first drain pipe is located at the lower end of the inner cavity of the liquid collection tank.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This fluoride-containing wastewater treatment device utilizes a turbine to convert the kinetic energy of the wastewater into mechanical energy, driving the stirring structure to rotate, thus reducing the device's energy consumption. Furthermore, rotating and fixed partition components divide the inner cavity of the shell into several independent chambers, separating different batches of wastewater and preventing cross-mixing between wastewater at different reaction stages. This allows for precise control of the reaction time between wastewater and reagents, improving the treatment effect and efficiency of fluoride-containing wastewater. It also prevents the filtration process from affecting the precipitation reaction process, further enhancing the treatment effect of fluoride-containing wastewater.

[0012] 2. This fluoride-containing wastewater treatment device utilizes a rotating filter belt, which allows intercepted impurities to be transferred away in a timely manner, preventing impurities from affecting the effective filtration area of ​​the filter belt. Furthermore, wastewater filtration and filter belt cleaning can be carried out simultaneously, avoiding efficiency reduction caused by impurities clogging the filter belt and ensuring wastewater filtration efficiency. Attached Figure Description

[0013] Figure 1This is a front view of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the back of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 4 This is a bottom view of the stirring structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the liquid collection tank structure of this utility model.

[0018] In the diagram: 1. Shell; 2. Filter box; 3. Opening door; 4. Turbine; 5. Fluorine wastewater inlet pipe; 6. Fluorine wastewater outlet pipe; 7. Reagent addition pipe; 8. Air compressor; 9. Exhaust window; 10. First drain pipe; 11. Fourth drive structure; 12. Second drain pipe; 13. Drive roller; 14. Filter belt; 15. Liquid collection tank; 16. Blower plate; 17. Filter tank; 18. Active stirring rod; 19. Driven stirring rod; 20. First drive structure; 21. Rotor; 22. Isolation plate; 23. Impurity draining screen; 24. Connecting rod; 25. Stirring blade; 26. Fixing plate; 27. Third drive structure; 28. Second drive structure; 29. ​​Sealing plate; 30. Drive stirring rod; 31. Electromagnet; 32. Sealing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides an embodiment: Please refer to Figures 1-5 A fluoride-containing wastewater treatment device includes a reaction mixing section and a filtration section. The reaction mixing section includes a shell 1, a turbine 4 is provided at the top of the shell 1, a rotor 21 is movably connected to the middle of the turbine 4, a fluoride-containing wastewater inlet pipe 5 is provided at the inlet end of the turbine 4, a fluoride-containing wastewater outlet pipe 6 is provided at the outlet end of the turbine 4, a reagent addition pipe 7 is provided in the middle of the fluoride-containing wastewater outlet pipe 6, and the bottom end of the fluoride-containing wastewater outlet pipe 6 extends into the inner cavity of the shell 1. In use, the fluoride-containing wastewater enters the inner cavity of the turbine 4 through the fluoride-containing wastewater inlet pipe 5 and is discharged into the inner cavity of the shell 1 through the fluoride-containing wastewater outlet pipe 6. During the flow of the wastewater in the turbine 4, it can drive the rotor 21 to rotate.

[0021] A stirring structure is provided in the middle of the inner cavity of the shell 1. The stirring structure includes an active stirring rod 18, a driven stirring rod 19, and a transmission stirring rod 30 connected to the bottom center of the rotor 21. The driven stirring rod 19 is located between the active stirring rod 18 and the transmission stirring rod 30. The active stirring rod 18 is movably connected to the top of the shell 1. The active stirring rod 18 and the driven stirring rod 19 are connected by a connecting rod 24. Two adjacent driven stirring rods 19 are connected by another connecting rod 24. The transmission stirring rod 30 and its adjacent driven stirring rod 19 are connected by a connecting rod 24. In this configuration, when the rotor 21 rotates, it can drive the active stirring rod 18 to rotate, which in turn drives the connected driven stirring rod 19 to rotate. The rotating driven stirring rod 19 can drive another adjacent driven stirring rod 19 or the transmission stirring rod 30 to rotate via the connecting rod 24, thus realizing the rotation of the stirring structure. The outer surface of the stirring structure is uniformly provided with stirring blades 25. When the stirring structure rotates, it can drive the stirring blades 25 to rotate, and the stirring blades 25 can agitate the wastewater around them, so that the fluoride-containing wastewater and the reagent can be fully mixed and reacted.

[0022] Both the bottom end of the active stirring rod 18 and the bottom end of the driven stirring rod 19 are provided with a rotating partition assembly. The rotating partition assembly includes a first driving structure 20 connected to the stirring structure, a sealing plate 32 connected to the end of the output shaft of the first driving structure 20, and an isolation plate 22 connected to the stirring structure. The isolation plate 22 is movably connected to the inner cavity of the housing 1. The sealing plate 32 is in contact with the bottom of the isolation plate 22. Both the isolation plate 22 and the sealing plate 32 are provided with through holes. Under the action of the first driving structure 20, the sealing plate 32 can rotate, so that the through holes on the sealing plate 32 and the through holes on the isolation plate 22 can be in a staggered or overlapping state. When the through holes on the sealing plate 32 and the through holes on the isolation plate 22 are in a staggered state, the sealing plate 32 and the isolation plate 22 form a partition plate to intercept and restrict the wastewater. When the through holes on the sealing plate 32 and the through holes on the isolation plate 22 are in an overlapping state, the wastewater can flow freely in the housing 1. Furthermore, the rotation of the stirring structure can drive the first driving structure 20 and the isolation plate 22 to rotate, thereby reducing the probability of blockage of the through hole during drainage. The first driving structure 20 is existing technology, and it only needs to be able to drive the sealing plate 32 to rotate.

[0023] A fixed partition assembly is provided at the bottom of the inner cavity of the housing 1. The fixed partition assembly includes a fixed plate 26 connected to the bottom of the inner cavity of the housing 1. A sealing plate 29 is connected to the bottom of the fixed plate 26 through a second driving structure 28. Both the fixed plate 26 and the sealing plate 29 are provided with through holes. Under the action of the second driving structure 28, the sealing plate 29 can rotate. The through holes on the sealing plate 29 and the through holes on the fixed plate 26 can be staggered or overlapped. When the through holes on the sealing plate 29 and the through holes on the fixed plate 26 are staggered, the sealing plate 29 and the fixed plate 26 form a partition, and the inner cavity of the housing 1 is sealed, which facilitates the thorough mixing and reaction of wastewater and reagents in the housing 1. When the through holes on the sealing plate 29 and the through holes on the fixed plate 26 are overlapped, the liquid in the housing 1 can be discharged through the through holes. The second driving structure 28 is a publicly available technology, which only needs to be able to drive the sealing plate 29 to rotate.

[0024] As described above, during operation, the turbine 4 converts the kinetic energy of the fluoride-containing wastewater into mechanical energy, driving the stirring structure to rotate and reducing energy consumption. Furthermore, the rotating and fixed partition components divide the inner cavity of the housing 1 into several independent chambers, separating different batches of wastewater and preventing cross-mixing between different reaction stages. This allows for precise control of the reaction time between the wastewater and the reagents, improving the treatment effect and efficiency of the fluoride-containing wastewater. It also prevents the filtration process from affecting the precipitation reaction, further enhancing the treatment effect of the fluoride-containing wastewater.

[0025] A third drive structure 27 is located at the center of the top of the fixed plate 26. The end of the output shaft of the third drive structure 27 contacts the bottom of the transmission stirring rod 30, and an electromagnet 31 is located at the bottom of the transmission stirring rod 30. When the electromagnet 31 is energized, it and the end of the output shaft of the third drive structure 27 are magnetically attracted to each other. The end of the output shaft of the third drive structure 27 is made of a ferromagnetic material. With this configuration, when wastewater stops entering the shell 1, the third drive structure 27 can drive the stirring structure to continue rotating. The third drive structure 27 is existing technology and only needs to be able to drive the stirring structure to rotate.

[0026] The discharge end of the reaction mixing section is connected to the feed end of the filtration section. The filtration section includes a filter box 2. A filter belt 14 is movably connected to the top of the inner cavity of the filter box 2. Drive rollers 13 are movably connected to both sides of the top of the inner cavity of the filter box 2. The two drive rollers 13 are connected via the filter belt 14. A fourth drive structure 11 is provided at one end of the filter box 2. The fourth drive structure 11 drives the drive rollers 13. Under the action of the fourth drive structure 11, the drive rollers 13 can rotate, and the rotating drive rollers 13 can drive the filter belt 14 to rotate. The fourth drive structure 11 is existing technology; it only needs to be able to drive the drive rollers 13 to rotate.

[0027] The outer wall of the filter belt 14 is uniformly provided with filter grooves 17. When the filter grooves 17 move to the bottom of the housing 1, the liquid discharged from the housing 1 can fall into the filter grooves 17. The bottom of the filter grooves 17 is uniformly provided with filter holes. The mesh diameter of the filter holes can be set according to the requirements and is not limited here. The filter holes can intercept impurities in the liquid to achieve wastewater filtration. The inner side of the straight section of the filter belt 14 is provided with a liquid collection tank 15. The liquid collection tank 15 is located below the reaction mixing section. The filtered wastewater falls into the liquid collection tank 15. The bottom of the inner cavity of the liquid collection tank 15 is inclined. The lower end of the inner cavity of the liquid collection tank 15 is provided with a first drain pipe 10. The end of the first drain pipe 10 away from the liquid collection tank 15 extends to the outside of the filter box 2. The filtered wastewater can be discharged through the first drain pipe 10.

[0028] A blower plate 16 is installed on the inner side of the straight section of the filter belt 14. The air outlet of the blower plate 16 contacts the top of the lower straight section of the filter belt 14. An air compressor 8 is installed on the filter housing 2. The air outlet of the air compressor 8 is connected to the air inlet of the blower plate 16 through a high-pressure resistant pipe. When the air compressor 8 is working, compressed air can enter the inner cavity of the blower plate 16 through the high-pressure resistant pipe. The compressed air blown out of the blower plate 16 can clean the filter tank 17 and blow away the impurities clogging the filter holes. An exhaust window 9 is provided on one side of the filter housing 2 to discharge excess gas from the filter housing 2.

[0029] Below the filter belt 14 is a dewatering screen 23, which is fixedly connected to the filter housing 2. Impurities falling from the filter tank 17 fall onto the dewatering screen 23. A door 3 is provided on one side of the filter housing 2. When the door 3 is closed, the inner cavity of the filter housing 2 is sealed. When the door 3 is open, it is convenient for staff to clean the impurities collected on the dewatering screen 23.

[0030] A second drain pipe 12 is provided on one side of the bottom of the filter box 2. The impurity drain net 23 is located between the filter belt 14 and the second drain pipe 12. The wastewater accumulated at the bottom of the inner cavity of the filter box 2 can be discharged by using the second drain pipe 12.

[0031] As described above, during the use of the filtration unit, wastewater filtration and filter belt cleaning can be carried out simultaneously, which can avoid the reduction in efficiency caused by impurities clogging the filter belt and ensure the wastewater filtration efficiency.

[0032] All electrical appliances involved in this application are existing technologies. Those skilled in the art can select appropriate models according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand the working principle and connection method of the electrical appliances involved in this application. With the help of those skilled in the art, all electrical appliances in this application and their compatible power supplies are connected by wires. According to the actual situation, appropriate controllers are selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection is completed by the sequential operation of each electrical component. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and the control of the electrical appliances will not be described.

[0033] In summary: When this fluoride-containing wastewater treatment device is in use, the fluoride-containing wastewater to be treated enters the inner cavity of the turbine 4 through the fluoride-containing wastewater inlet pipe 5, and is discharged into the inner cavity of the shell 1 through the fluoride-containing wastewater outlet pipe 6. During the flow of the wastewater within the turbine 4, it drives the rotor 21 to rotate. During the flow of the fluoride-containing wastewater within the fluoride-containing wastewater outlet pipe 6, the reagents used to treat the fluoride-containing wastewater (such as calcium salts, aluminum salts, etc.) are discharged through the reagent addition pipe 7. The reagents and the fluoride-containing wastewater undergo preliminary mixing within the fluoride-containing wastewater outlet pipe 6, and the mixture enters the inner cavity of the shell 1. For ease of description, it is referred to as... Figure 3 For example, the rotating and fixed partition components divide the inner cavity of the housing 1 into a first chamber, a second chamber, and a third chamber from top to bottom. During the entry of the mixture, the bottom of the third chamber is closed, that is, the through hole on the sealing plate 29 and the through hole on the fixed plate 26 are staggered. The fixed partition component intercepts the mixture, confining it within the third chamber. When the third chamber is filled with the mixture, the bottom of the second chamber is closed, that is, the through hole on the sealing plate 32 and the through hole on the adjacent isolation plate 22 are staggered. The mixture then enters the second chamber, thus preventing cross-mixing of different batches of mixture. When the wastewater and reagent in the third chamber are repeatedly mixed and reacted, and filtration is required, the bottom of the third chamber is in an open state, that is, the through hole on the sealing plate 29 and the through hole on the fixing plate 26 are in an overlapping state. The mixture in the third chamber can fall onto the filter belt 14 through the through hole. The filter belt 14 intercepts impurities, and the filtered wastewater enters the liquid collection tank 15 and is discharged through the first drain pipe 10. When the mixture in the third chamber is emptied, the bottom of the third chamber is in a closed state, and the bottom of the second chamber is in an open state. The mixture in the second chamber is transferred to the third chamber, and then the mixture in the first chamber is transferred to the second chamber, which facilitates the continuous operation of the device.

[0034] The standard parts used in this utility model are all purchased from the market according to actual application needs. Irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each structure all adopt conventional techniques such as bolt connections that are already mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be detailed here. Furthermore, the materials of each structural component in this application can be selected according to requirements and are not limited here. Content not described in detail in this specification belongs to the prior art known to those skilled in the art. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fluorine-containing wastewater treatment apparatus comprising a reaction mixing section and a filtration section, characterized by: The reaction mixing section includes a shell (1), a turbine (4) is provided at the top of the shell (1), a rotor (21) is movably connected to the middle of the turbine (4), a fluoride-containing wastewater inlet pipe (5) is provided at the inlet end of the turbine (4), a fluoride-containing wastewater outlet pipe (6) is provided at the outlet end of the turbine (4), a reagent addition pipe (7) is provided in the middle of the fluoride-containing wastewater outlet pipe (6), and the bottom end of the fluoride-containing wastewater outlet pipe (6) extends into the inner cavity of the shell (1). A stirring structure is provided in the middle of the inner cavity of the shell (1), and the stirring structure includes a rotor (21) connected to the rotor (21). 1) The active stirring rod (18), the driven stirring rod (19) and the transmission stirring rod (30) are connected at the bottom center. The active stirring rod (18) and the driven stirring rod (19), two adjacent driven stirring rods (19) and the transmission stirring rod (30) and the adjacent driven stirring rod (19) are all connected by connecting rods (24). The outer surface of the stirring structure is uniformly provided with stirring blades (25). The bottom end of the active stirring rod (18) and the bottom end of the driven stirring rod (19) are provided with rotating partition components. The bottom end of the inner cavity of the shell (1) is provided with a fixed partition component.

2. A fluorine-containing wastewater treatment apparatus according to claim 1, characterized by: The rotating separation assembly includes a first drive structure (20), a sealing plate (32) connected to the end of the output shaft of the first drive structure (20), and an isolation plate (22) connected to the stirring structure. The isolation plate (22) is movably connected to the inner cavity of the housing (1). Both the isolation plate (22) and the sealing plate (32) are provided with through holes.

3. A fluorine-containing wastewater treatment apparatus according to claim 1, characterized by: The fixed partition assembly includes a fixed plate (26) connected to the bottom of the inner cavity of the housing (1). The bottom of the fixed plate (26) is connected to a sealing plate (29) through a second drive structure (28). Both the fixed plate (26) and the sealing plate (29) are provided with through holes.

4. A fluorine-containing wastewater treatment apparatus according to claim 3, characterized by: A third drive structure (27) is provided at the middle of the top of the fixed plate (26). The end of the output shaft of the third drive structure (27) is in contact with the bottom of the transmission stirring rod (30), and an electromagnet (31) is provided at the bottom of the transmission stirring rod (30).

5. A fluorine-containing wastewater treatment apparatus according to claim 1, characterized by: The discharge end of the reaction mixing section is connected to the inlet end of the filtration section. The filtration section includes a filter box (2). A filter belt (14) is movably connected to the top of the inner cavity of the filter box (2). Filter grooves (17) are evenly arranged on the outer side wall of the filter belt (14). A liquid collection tank (15) and a blower plate (16) are arranged on the inner side of the straight section of the filter belt (14). The liquid collection tank (15) is located below the reaction mixing section. A first drain pipe (10) is provided at the liquid outlet end. One end of the first drain pipe (10) extends to the outside of the filter box (2). The air outlet end of the blower plate (16) contacts the top of the straight section of the filter belt (14). A second drain pipe (12) is provided on one side of the bottom end of the filter box (2). An impurity draining net (23) is provided between the filter belt (14) and the second drain pipe (12). The impurity draining net (23) is fixedly connected to the filter box (2).

6. A fluorine-containing wastewater treatment apparatus according to claim 5, characterized by: The filter box (2) is provided with an exhaust window (9) on one side and an opening and closing door (3) on one side; the bottom of the inner cavity of the liquid collection tank (15) is inclined, and the first drain pipe (10) is located at the lower end of the inner cavity of the liquid collection tank (15).

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