WO2024031784A1

WO2024031784A1 - Wastewater sedimentation tank for hydrogen fluoride production

Info

Publication number: WO2024031784A1
Application number: PCT/CN2022/119818
Authority: WO
Inventors: 钟华麟; 袁海明; 廖育能; 吴仕显; 赖胜华; 廖福华; 廖玉琴
Original assignee: 福建龙氟新材料有限公司
Priority date: 2022-08-12
Filing date: 2022-09-20
Publication date: 2024-02-15
Also published as: CN115304142A

Abstract

A wastewater sedimentation tank for hydrogen fluoride production, relating to the technical field of wastewater sedimentation tanks. The wastewater sedimentation tank comprises a sedimentation tank (1). A supporting plate (2) is fixedly connected to the inner cavity wall of the sedimentation tank (1); a circular shaft disc (3) passes through and is rotatably connected to the left side wall of the supporting plate (2); an electric telescopic rod (20) passes through and is fixedly connected to the right side wall of the sedimentation tank (1); the left end of the electric telescopic rod (20) is fixedly connected to the right side wall of a vertical plate; a material hopper (22) is fixedly connected to the upper end face of the supporting plate (2). The wastewater sedimentation tank for hydrogen fluoride production solves the problems that: for an existing wastewater sedimentation tank for hydrogen fluoride production, it is inconvenient to intermittently add a calcium compound into the sedimentation tank while stirring, and if a large amount of the calcium compound is fed at one time, sedimentation occurs at the bottom, and the calcium compound cannot be well mixed with the wastewater, causing waste of the calcium compound; moreover, it is inconvenient to automatically clean the inner wall of the sedimentation tank, and the inner wall of the sedimentation tank may be corroded due to the fact that the inner wall is not cleaned for a long time, shortening the service life of the sedimentation tank.

Description

Wastewater settling tank for hydrogen fluoride production

Technical field

The invention relates to the technical field of wastewater sedimentation tanks, specifically a wastewater sedimentation tank for hydrogen fluoride production.

Background technique

During the production process of hydrogen fluoride, a large amount of wastewater will be produced. The main components in the wastewater are nitric acid and hydrofluoric acid. Since the wastewater is highly acidic, direct discharge will cause greater pollution, so it is necessary to add calcium compounds to the wastewater sedimentation tank to mix with the hydrogen fluoride. The wastewater reacts and precipitates, and then the water is drained to leave the sediment.

The existing wastewater sedimentation tank for hydrogen fluoride production is inconvenient to allow calcium compounds to be added intermittently into the sedimentation tank while stirring. If a large amount is added at one time, it will be deposited at the bottom and cannot be well mixed with the wastewater, thus causing calcium compounds to form. It is a waste, and it is inconvenient to automatically clean the inner wall of the sedimentation tank in all aspects. If it is not cleaned for a long time, the inner wall of the sedimentation tank will be corroded and the service life of the sedimentation tank will be reduced.

technical problem

In view of the shortcomings of the existing technology, the present invention provides a wastewater sedimentation tank for hydrogen fluoride production, which solves the inconvenience of the existing wastewater sedimentation tank for hydrogen fluoride production. Calcium compounds are intermittently added to the sedimentation tank while stirring. It will often be deposited at the bottom and cannot be mixed well with the wastewater, resulting in a waste of calcium compounds. It is also inconvenient to automatically clean the inner wall of the sedimentation tank in all aspects. If it is not cleaned for a long time, corrosion of the inner wall of the sedimentation tank will occur. situation, reducing the service life of the sedimentation tank.

Technical solutions

In order to achieve the above objects, the present invention is realized through the following technical solutions: a wastewater sedimentation tank for hydrogen fluoride production, including a sedimentation tank, the inner cavity wall of the sedimentation tank is fixedly connected with a support plate, and the left side wall of the support plate penetrates A circular shaft plate is rotatably connected, and a sliding column is fixedly connected to the left side wall of the circular shaft plate. A long plate is symmetrically and slidingly connected to the left side wall of the support plate. One end of the two long plates that are close to each other is fixedly connected to a sliding column. Sliding frame, the inner wall of the sliding frame is slidingly connected to the sliding column, the left side wall of the long plate is symmetrically connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a stirring rod, and the two long plates are far away from each other. One end is fixedly connected with a stirring plate, the inner cavity wall of the settling tank is equipped with an automatic cleaning mechanism, the outer wall of the rotating shaft is fixedly connected with a pinion, the right side wall of the settling tank is fixedly connected with a drive motor, and the drive The output shaft of the motor penetrates the right cavity wall of the sedimentation tank and is fixedly connected to an installation shaft at one end. The outer wall of the installation shaft is slidingly connected to the main gear. The left wall of the main gear is fixedly connected to a hexagonal prism sleeve. A ring is fixedly connected to the right side wall, and a vertical plate is fixedly connected to the upper end surface of the ring. An electric telescopic rod is fixedly connected to the right side wall of the settling tank, and the left end of the electric telescopic rod is connected to the right end of the vertical plate. The side walls are fixedly connected, and the upper end surface of the support plate is fixedly connected to a charging barrel.

Preferably, a rack is symmetrically and fixedly connected to the left side wall of the support plate, and the rack is meshed with a pinion. A hexagonal prism is fixedly connected to the right end surface of the circular axis plate, and the hexagonal prism is connected to the hexagonal prism. The inner cavity wall of the sedimentation tank is fixedly connected to the outer wall of the stirring plate through a telescopic rod.

Preferably, the upper end surface of the support plate is slidably connected to a sealing plate, the lower end surface of the sealing plate is fixedly connected to a loading barrel, the lower end surface of the loading barrel is rotatably connected to a bottom plate, and the upper end surface of the sealing plate is connected to a bottom plate. Fitted with the lower end surface of the charging barrel, the upper end surface of the stirring plate is fixedly connected to the left side wall of the sealing plate through an L-shaped rod.

Preferably, the automatic cleaning mechanism includes a transmission shaft and a belt. The right cavity wall of the sedimentation tank is symmetrically and rotationally connected to a transmission shaft, and the outer wall of the transmission shaft is drivingly connected to a belt.

Preferably, the left end of the transmission shaft is fixedly connected to the slave gear, the left side wall of the belt is rotatably connected to a long shaft, the inner cavity wall of the sedimentation tank is slidingly connected to a square scraper, and the right side of the square scraper is The side wall is slidingly connected to the long axis through a strip groove.

Preferably, the lower end surface of the square scraper is symmetrically connected with a connecting rod, the bottom of the chamber of the sedimentation tank is symmetrically slidingly connected with a cleaning plate, and the lower end surface of the sedimentation tank is symmetrically provided with a collection box.

Preferably, the lower end surface of the connecting rod is rotationally connected to the upper end surface of the cleaning plate, and the inner cavity wall of the collection box is rotationally connected to a cover plate through a pin, and a torsion spring is set in the outer wall of the pin.

Preferably, one end of the torsion spring is fixedly connected to the front end surface of the settling tank, the other end of the torsion spring is fixedly connected to the outer wall of the pin shaft, and the lower end surface of the square scraper is symmetrically fixedly connected to a guide rod.

beneficial effects

The wastewater sedimentation tank for hydrogen fluoride production provided by the present invention has the following beneficial effects: 1. Through the support plate, circular shaft plate, sliding frame, long plate, sliding column, rotating shaft, stirring rod, pinion, rack, and stirring plate, The cooperation between telescopic rod, drive motor, installation shaft, ring, hexagonal prism sleeve, hexagonal prism, main gear, electric telescopic rod and vertical plate. First start the electric telescopic rod to extend and push the vertical plate through the ring to push the main gear during installation. The outer wall of the shaft slides to the left, allowing the hexagonal prism sleeve to be plugged into the hexagonal prism. Then starting the rotation of the driving motor will drive the installation shaft, main gear, and hexagonal prism to rotate synchronously, and then drive the circular shaft plate to rotate so that the sliding column on the front end face is in the When the inner wall of the sliding frame slides, the sliding frame will be moved to drive the long plate and the stirring plate to move forward and backward, which can cause the hydrogen fluoride wastewater to shake. In addition, when the long plate moves forward and backward, the pinion on the left wall of the long plate will engage with the rack, causing the two The rotating shaft and stirring rod rotate and can move forward and backward at the same time, which effectively improves the mixing effect of hydrogen fluoride wastewater and calcium compounds, improves the efficiency of hydrogen fluoride wastewater precipitation, and increases the functionality of the sedimentation tank; 2 . Through the cooperation of the loading barrel, sealing plate, unloading barrel, bottom plate and L-shaped rod, when the stirring plate moves left and right, the L-shaped rod will pull the sealing plate to slide forward and backward. When the sealing plate pulls the unloading barrel to move, it will The lower bottom plate will close when it is resisted by the support plate. When it moves to the lower part of the loading barrel, the calcium compound in the loading barrel will fall into the loading barrel. Then, as the sealing plate continues to move backward, it will no longer fit into the support. When the plate is on the top, the calcium compound in the unloading bucket will fall into the sedimentation tank. The calcium compound can be added intermittently while stirring, avoiding the situation where a large amount of calcium compound is added at one time to settle on the bottom of the pool, thereby avoiding the waste of calcium compound. And further accelerates the speed of sedimentation; 3. Through the cooperation of the automatic cleaning mechanism, transmission shaft, belt, long shaft, strip groove and square scraper, when it is necessary to clean the inner wall of the sedimentation tank, you only need to start the electric telescopic rod to shorten the vertical plate. The main gear is pulled through the ring to mesh with the slave gear, and the hexagonal prism sleeve moves to the left synchronously to disengage from the hexagonal prism. After that, the drive motor starts to drive the master gear to mesh with the slave gear through the installation shaft, causing the transmission shaft to drive When the belt moves, the long axis on the left side of the belt drives the square scraper to move downward, allowing the square scraper to effectively clean the inner wall of the sedimentation tank. By switching the transmission mode of the drive motor, it is both simple to operate and economical. The cost is reduced, and the stirring rod and stirring plate can no longer move while cleaning the inner wall, ensuring the cleanliness of the sedimentation tank and extending its service life; 4. Through the connecting rod, cleaning plate, collection box, cover plate, pin, and twist The cooperation between the spring and the guide rod will press the connecting rod to rotate when the square scraper continues to fall, causing its lower end to rotate and push the two cleaning plates to slide away from each other, allowing the cleaning plates to clean the bottom of the sedimentation tank, expanding the The cleaning range, and when the square scraper drops to the bottom, the guide rod at the lower part will resist the cover plate and rotate downward to drive the torsion spring to shrink, allowing the cleaned sediment to be pushed into the collection box for collection. After the cleaning is completed, the torsion spring The automatic reset allows the cover to rotate and close, and the wastewater for hydrogen fluoride production can continue to be poured in for the next step of precipitation. Its high degree of automation can quickly clean and collect sediment, improving the convenience of use.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.

Figure 2 is a schematic diagram of a partially cut-away structure of the sedimentation tank of the present invention.

Figure 3 is a schematic diagram of the installation structure of the rotating shaft and stirring rod of the present invention.

Figure 4 is a schematic diagram of the installation structure of the telescopic rod and stirring plate of the present invention.

Figure 5 is an enlarged structural schematic diagram of area A in Figure 4 of the present invention.

Figure 6 is an enlarged structural schematic diagram of area B in Figure 4 of the present invention.

Figure 7 is a schematic diagram of the installation structure of the transmission shaft and belt of the present invention.

Figure 8 is an enlarged structural schematic diagram of area C in Figure 7 of the present invention.

Figure 9 is a schematic diagram of the installation structure of the sealing plate and the unloading barrel of the present invention.

Figure 10 is an enlarged structural schematic diagram of area D in Figure 9 of the present invention.

In the picture: 1. Sedimentation tank; 2. Support plate; 3. Circular shaft plate; 4. Sliding frame; 5. Long plate; 6. Sliding column; 7. Rotating shaft; 8. Stirring rod; 9. Automatic cleaning mechanism; 91 , transmission shaft; 92, belt; 93, long shaft; 94, strip groove; 95, square scraper; 96, connecting rod; 97, cleaning plate; 98, collection box; 99, cover; 910, pin; 911. Torsion spring; 912. Follower gear; 913. Guide rod; 10. Pinion; 11. Rack; 12. Stirring plate; 13. Telescopic rod; 14. Drive motor; 15. Installation shaft; 16. Ring; 17. Hexagonal prism sleeve; 18. Hexagonal prism; 19. Main gear; 20. Electric telescopic rod; 21. Vertical plate; 22. Loading bucket; 23. Sealing plate; 24. Unloading bucket; 25. Bottom plate; 26. L-shaped rod.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

The present invention provides a technical solution: Embodiment 1: Please refer to Figures 1 to 5 and Figures 7 and 8, which includes a sedimentation tank 1. The inner cavity wall of the sedimentation tank 1 is fixedly connected with a support plate 2. The left side of the support plate 2 The side wall is rotatably connected with a circular axis plate 3. The left side wall of the circular axis plate 3 is fixedly connected with a sliding column 6. The left side wall of the support plate 2 is symmetrically and slidingly connected with a long plate 5. One end of the two long plates 5 is close to each other. A sliding frame 4 is fixedly connected, the inner wall of the sliding frame 4 is slidingly connected to the sliding column 6, the left side wall of the long plate 5 is symmetrically connected to a rotating shaft 7, the outer wall of the rotating shaft 7 is fixedly connected to a stirring rod 8, and the two long plates 5 The ends far away from each other are fixedly connected with a stirring plate 12, the inner cavity wall of the sedimentation tank 1 is equipped with an automatic cleaning mechanism 9, the outer wall of the rotating shaft 7 is fixedly connected with a pinion 10, and the right side wall of the sedimentation tank 1 is fixedly connected with a driving motor 14 , the output shaft of the drive motor 14 penetrates the right cavity wall of the sedimentation tank 1 and is fixedly connected to an installation shaft 15 at one end. The outer wall of the installation shaft 15 is slidingly connected to the main gear 19. The left wall of the main gear 19 is fixedly connected to a hexagonal prism sleeve 17. A ring 16 is fixedly connected to the right side wall of the main gear 19, and a vertical plate 21 is fixedly connected to the upper end surface of the ring 16. An electric telescopic rod 20 is fixedly connected to the right side wall of the sedimentation tank 1, and the left end of the electric telescopic rod 20 is connected to the vertical plate 21. The right side wall of the vertical plate 21 is fixedly connected, the upper end surface of the support plate 2 is fixedly connected with a charging bucket 22, and the left side wall of the support plate 2 is symmetrically fixedly connected with a rack 11, which meshes with the pinion 10. A hexagonal prism 18 is fixedly connected to the right end surface of the shaft plate 3. The hexagonal prism 18 is plugged into the hexagonal prism sleeve 17. The inner cavity wall of the sedimentation tank 1 is fixedly connected to the outer wall of the stirring plate 12 through a telescopic rod 13.

When working, it passes through the support plate 2, the circular shaft plate 3, the sliding frame 4, the long plate 5, the sliding column 6, the rotating shaft 7, the stirring rod 8, the pinion 10, the rack 11, the stirring plate 12, the telescopic rod 13, and the driving motor. 14. The installation shaft 15, the ring 16, the hexagonal prism sleeve 17, the hexagonal prism 18, the main gear 19, the electric telescopic rod 20 and the vertical plate 21 cooperate. First, start the electric telescopic rod 20 to extend and push the vertical plate 21 through the ring. 16 Push the main gear 19 to slide to the left on the outer wall of the installation shaft 15, so that the hexagonal prism sleeve 17 and the hexagonal prism 18 can be plugged in. Then the rotation of the drive motor 14 will drive the installation shaft 15, the main gear 19, and the hexagonal prism 18 to rotate synchronously. Then the circular shaft plate 3 is driven to rotate so that the sliding column 6 on the front end surface slides on the inner wall of the sliding frame 4, and the sliding frame 4 is moved to drive the long plate 5 and the stirring plate 12 to move forward and backward, which can cause the hydrogen fluoride wastewater to slosh. When the plate 5 moves forward and backward, the pinion 10 on the left wall of the plate 5 will mesh with the rack 11, causing the two rotating shafts 7 and the stirring rod 8 to rotate. They can rotate themselves while moving forward and backward, effectively improving the mixing of hydrogen fluoride wastewater and calcium The mixing effect of compounds also improves the efficiency of hydrogen fluoride wastewater precipitation and increases the functionality of the sedimentation tank.

Embodiment 2: Please refer to Figures 1, 2 and 9. The upper end surface of the support plate 2 is slidably connected to a sealing plate 23, and the lower end surface of the sealing plate 23 is fixedly connected to a lowering bucket 24. The lower end surface of the lowering bucket 24 rotates. A bottom plate 25 is connected, the upper end surface of the sealing plate 23 is in contact with the lower end surface of the charging barrel 22, and the upper end surface of the stirring plate 12 is fixedly connected to the left side wall of the sealing plate 23 through an L-shaped rod 26.

During operation, through the cooperation of the loading barrel 22, the sealing plate 23, the unloading barrel 24, the bottom plate 25 and the L-shaped rod 26, when the stirring plate 12 moves left and right, the sealing plate 23 will be pulled by the L-shaped rod 26 to slide forward and backward. When the sealing plate 23 pulls the lower barrel 24 to move, the bottom plate 25 at its lower part will be closed when it is resisted by the support plate 2. When it moves to the lower part of the loading barrel 22, the calcium compound in the lower barrel 24 will fall into the lower barrel 24. , and then as the sealing plate 23 continues to move backward and no longer fits the upper part of the support plate 2, the calcium compound in the discharge barrel 24 will fall into the sedimentation tank 1, and the calcium compound can be added intermittently while stirring. It avoids the situation where a large amount of one-time investment is deposited at the bottom of the pool, thus avoiding the waste of calcium compounds and further accelerating the speed of precipitation.

Embodiment 3: Please refer to Figures 2 and 3 and Figures 7 to 10. The automatic cleaning mechanism 9 includes a transmission shaft 91 and a belt 92. The right cavity wall of the sedimentation tank 1 is symmetrically connected to the transmission shaft 91 and the outer wall of the transmission shaft 91 is rotatably connected. A belt 92 is connected for transmission, a slave gear 912 is fixedly connected to the left end of the drive shaft 91, a long shaft 93 is rotatably connected to the left side wall of the belt 92, and a square scraper 95 is slidably connected to the inner cavity wall of the sedimentation tank 1. The square scraper 95 The right side wall is slidably connected to the long axis 93 through a strip groove 94.

During operation, through the cooperation of the automatic cleaning mechanism 9, the transmission shaft 91, the belt 92, the long shaft 93, the strip groove 94 and the square scraper 95, when it is necessary to clean the inner wall of the sedimentation tank 1, it is only necessary to start the electric telescopic rod 20 to shorten the vertical The plate 21 pulls the main gear 19 through the ring 16 to mesh with the slave gear 912, and the hexagonal prism sleeve 17 moves to the left synchronously to disengage from the hexagonal prism 18. After that, the driving motor 14 starts and drives the main gear 19 through the mounting shaft 15. The meshing slave gear 912 rotates, causing the transmission shaft 91 to drive the belt 92 to move, and the long axis 93 on the left side of the belt 92 to drive the square scraper 95 to move downward, allowing the square scraper 95 to move against the inner wall of the sedimentation tank 1 Effective cleaning, and by switching the transmission mode of the drive motor 14, it is easy to operate and saves costs. It can prevent the stirring rod 8 and the stirring plate 12 from moving while cleaning the inner wall, ensuring the cleanliness of the sedimentation tank 1 and prolonging its operation. service life.

Embodiment 4: Please refer to Figures 2 and 3 and Figures 4 and 6. The lower end surface of the square scraper 95 is symmetrically connected to a connecting rod 96 for rotation. The bottom of the chamber of the sedimentation tank 1 is symmetrically and slidingly connected to a cleaning plate 97. The sedimentation tank A collection box 98 is symmetrically arranged on the lower end surface of 1. The lower end surface of the connecting rod 96 is rotationally connected to the upper end surface of the cleaning plate 97. The inner cavity wall of the collection box 98 is rotationally connected to a cover plate 99 through a pin 910. The pin 910 is The outer wall is provided with a torsion spring 911. One end of the torsion spring 911 is fixedly connected to the front end surface of the settling tank 1. The other end of the torsion spring 911 is fixedly connected to the outer wall of the pin 910. The lower end surface of the square scraper 95 is symmetrically fixedly connected with a guide. Rod 913.

During operation, through the cooperation of the connecting rod 96, the cleaning plate 97, the collection box 98, the cover plate 99, the pin 910, the torsion spring 911 and the guide rod 913, the connecting rod 96 will be pressed to rotate when the square scraper 95 continues to descend. , its lower end rotates and pushes the two cleaning plates 97 to slide away from each other, allowing the cleaning plate 97 to clean the bottom of the chamber of the sedimentation tank 1, expanding the cleaning range, and when the square scraper 95 drops to the bottom, the guide rod 913 at its lower part It will resist the downward rotation of the cover plate 99 and drive the torsion spring 911 to shrink, allowing the cleaned sediment to be pushed into the collection box 98 for collection. After the cleaning is completed, the torsion spring 911 automatically resets to allow the cover plate 99 to rotate and close, and the process can continue The wastewater used in hydrogen fluoride production is poured in for the next step of precipitation. Its high degree of automation can quickly clean and collect the sediment, which improves the convenience of use.

Working principle: first start the electric telescopic rod 20 to extend and push the vertical plate 21 through the ring 16 to push the main gear 19 to slide to the left on the outer wall of the installation shaft 15, allowing the hexagonal prism sleeve 17 to be plugged into the hexagonal prism 18, and then start the drive motor The rotation of 14 will drive the installation shaft 15, the main gear 19, and the hexagonal prism 18 to rotate synchronously, and then drive the shaft plate 3 to rotate so that the sliding column 6 on the front end surface slides on the inner wall of the sliding frame 4, and the sliding frame 4 will be moved to drive the long shaft. The plate 5 and the stirring plate 12 move forward and backward, which can cause the hydrogen fluoride wastewater to slosh. In addition, when the long plate 5 moves forward and backward, the pinion 10 on the left side of the long plate 5 will mesh with the rack 11, causing the two rotating shafts 7 and the stirring rod 8 to rotate. , can rotate itself while moving forward and backward, effectively improving the mixing effect of hydrogen fluoride wastewater and calcium compounds, improving the working efficiency of hydrogen fluoride wastewater precipitation, and increasing the functionality of the sedimentation tank; the stirring plate 12 moves left and right When the sealing plate 23 is pulled by the L-shaped rod 26 to slide forward and backward, when the sealing plate 23 pulls the lowering barrel 24 to move, the bottom plate 25 at the lower part is resisted by the support plate 2 and is closed. When the sealing plate 23 moves to the lower part of the loading barrel 22, The calcium compound in the barrel 24 will fall into the lower barrel 24, and then as the sealing plate 23 continues to move backward and no longer fits the upper part of the support plate 2, the calcium compound in the lower barrel 24 will fall into In the sedimentation tank 1, calcium compounds can be added intermittently while stirring, avoiding the situation where a large amount of calcium compound is deposited at the bottom of the tank at one time, thereby avoiding the waste of calcium compounds and further speeding up the precipitation; when it is necessary to clean the sedimentation tank 1 When using the inner wall, you only need to start the electric telescopic rod 20 to shorten, so that the vertical plate 21 pulls the main gear 19 through the ring 16 to mesh with the slave gear 912, and the hexagonal prism sleeve 17 moves to the left synchronously to disengage from the hexagonal prism 18, and then drives the motor. When 14 is started, the main gear 19 will be driven through the installation shaft 15 to mesh with the slave gear 912 to rotate, so that the transmission shaft 91 drives the belt 92 to move, and the long shaft 93 on the left side of the belt 92 will drive the square scraper 95 to move downward, which can Let the square scraper 95 effectively clean the inner wall of the sedimentation tank 1, and by switching the transmission mode of the drive motor 14, the operation is simple and the cost is saved. The inner wall can be cleaned while the stirring rod 8 and the stirring plate 12 are no longer required. Movement ensures the cleanliness of the sedimentation tank 1 and prolongs its service life; when the square scraper 95 continues to decline, the connecting rod 96 will be pressed to rotate, causing its lower end to rotate and push the two cleaning plates 97 to slide away from each other, allowing the cleaning plates to slide away from each other. 97 cleans the bottom of the chamber of the sedimentation tank 1, expanding the cleaning range, and when the square scraper 95 drops to the bottom, the guide rod 913 at its lower part will resist the cover plate 99 and rotate downward to drive the torsion spring 911 to shrink, which can allow the cleaning process to be completed. The sediment is pushed into the collection box 98 for collection. After the cleaning is completed, the torsion spring 911 automatically resets, allowing the cover 99 to rotate and close, and the wastewater for hydrogen fluoride production can continue to be poured in for the next step of sedimentation. Its high degree of automation can quickly clean and collect sediment, improving the convenience of use.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims

A wastewater sedimentation tank for hydrogen fluoride production, including a sedimentation tank (1), characterized in that: a support plate (2) is fixedly connected to the inner cavity wall of the sedimentation tank (1), and the left side of the support plate (2) The wall is rotatably connected with a circular shaft disk (3), the left side wall of the circular shaft disk (3) is fixedly connected with a sliding column (6), and the left side wall of the support plate (2) is symmetrically and slidingly connected with a long plate. (5), the two long plates (5) are fixedly connected with a sliding frame (4) at one end close to each other, and the inner wall of the sliding frame (4) is slidingly connected to the sliding column (6). The long plate (5) A rotating shaft (7) is symmetrically connected to the left wall of 5), a stirring rod (8) is fixedly connected to the outer wall of the rotating shaft (7), and the ends of the two long plates (5) far away from each other are fixedly connected to a stirring rod. plate (12), an automatic cleaning mechanism (9) is installed on the inner cavity wall of the settling tank (1), a pinion (10) is fixedly connected to the outer wall of the rotating shaft (7), and the settling tank (1) A drive motor (14) is fixedly connected to the right side wall. The output shaft of the drive motor (14) penetrates through the settling tank (1). An installation shaft (15) is fixedly connected to one end of the right cavity wall of the sedimentation tank (1). The installation shaft (15) A main gear (19) is slidably connected to the outer wall, a hexagonal prism sleeve (17) is fixedly connected to the left side wall of the main gear (19), and a ring (16) is fixedly connected to the right side wall of the main gear (19). , the upper end surface of the ring (16) is fixedly connected with a vertical plate (21), and the right side wall of the sedimentation tank (1) is fixedly connected with an electric telescopic rod (20). The electric telescopic rod (20) The left end of the support plate (2) is fixedly connected to the right side wall of the vertical plate (21), and the upper end surface of the support plate (2) is fixedly connected with a charging barrel (22).
A wastewater settling tank for hydrogen fluoride production according to claim 1, characterized in that: a rack (11) is symmetrically and fixedly connected to the left side wall of the support plate (2), and the rack (11) is connected to a small The gears (10) are meshed, and the right end surface of the circular shaft plate (3) is fixedly connected with a hexagonal prism (18). The hexagonal prism (18) is plugged into the hexagonal prism sleeve (17). The settling tank (18) is The inner cavity wall of 1) is fixedly connected to the outer wall of the stirring plate (12) through the telescopic rod (13).
A wastewater sedimentation tank for hydrogen fluoride production according to claim 2, characterized in that: the upper end surface of the support plate (2) is slidably connected to a sealing plate (23), and the lower end surface of the sealing plate (23) is fixed A lower end surface of the unloading barrel (24) is connected to a bottom plate (25), and the upper end surface of the sealing plate (23) is in contact with the lower end surface of the charging barrel (22). The upper end surface of the stirring plate (12) is fixedly connected to the left side wall of the sealing plate (23) through an L-shaped rod (26).
A wastewater sedimentation tank for hydrogen fluoride production according to claim 1, characterized in that: the automatic cleaning mechanism (9) includes a transmission shaft (91) and a belt (92), and the right chamber of the sedimentation tank (1) A transmission shaft (91) is connected to the wall for symmetrical rotation, and a belt (92) is connected to the outer wall of the transmission shaft (91) for transmission.
A wastewater sedimentation tank for hydrogen fluoride production according to claim 4, characterized in that: the left end of the transmission shaft (91) is fixedly connected with a slave gear (912), and the left side wall of the belt (92) is rotationally connected There is a long axis (93), and a square scraper (95) is slidingly connected to the inner cavity wall of the sedimentation tank (1). The right side wall of the square scraper (95) is connected to the long axis through a strip groove (94). (93) Sliding connection.
A wastewater settling tank for hydrogen fluoride production according to claim 5, characterized in that: the lower end surface of the square scraper (95) is symmetrically connected to a connecting rod (96), and the settling tank (1) is connected to a connecting rod (96). A cleaning plate (97) is symmetrically and slidingly connected to the bottom of the chamber, and a collection box (98) is symmetrically provided on the lower end surface of the sedimentation tank (1).
A wastewater sedimentation tank for hydrogen fluoride production according to claim 6, characterized in that: the lower end surface of the connecting rod (96) is rotationally connected to the upper end surface of the cleaning plate (97), and the collection box (98) The inner cavity wall is rotatably connected to a cover plate (99) through a pin (910), and a torsion spring (911) is set in the outer wall of the pin (910).
A wastewater sedimentation tank for hydrogen fluoride production according to claim 7, characterized in that: one end of the torsion spring (911) is fixedly connected to the front end surface of the sedimentation tank (1), and the other end of the torsion spring (911) One end is fixedly connected to the outer wall of the pin shaft (910), and the lower end surface of the square scraper (95) is symmetrically fixedly connected to a guide rod (913).