A tannic acid production wastewater purification device

Abstract

This invention relates to the field of tannic acid wastewater technology and discloses a tannic acid production wastewater purification device, including a reaction cylinder. An inlet pipe is fixedly connected to one side of the upper part of the reaction cylinder, and an inlet valve is fixedly connected to the outer wall of the inlet pipe. An outlet chamber is fixedly connected to the bottom of the reaction cylinder, and an outlet valve is fixedly connected to the outer wall of the outlet chamber. A mounting frame is fixedly installed on the outer wall of the reaction cylinder. Gas outlet pipes are symmetrically connected to the top of the reaction cylinder. A liquid distribution assembly is installed inside the reaction cylinder, and a stirring assembly is installed outside the liquid distribution assembly. The liquid distribution assembly adds reagents to various areas inside the reaction cylinder. Uniform distribution of the reagents ensures that pollutants in the wastewater are in full contact with the reagents, avoiding localized excessively high or low reagent concentrations. Combined with the stirring assembly, this ensures that all wastewater in the reaction cylinder is effectively treated, thereby optimizing the reaction effect and improving the quality of wastewater treatment.

Description

Technical Field

[0001] This invention belongs to the field of tannic acid wastewater treatment technology: specifically, it relates to a tannic acid production wastewater purification device. Background Technology

[0002] The tannic acid production wastewater purification device integrates multiple wastewater treatment technologies, aiming to effectively remove harmful substances from wastewater, recover valuable components (such as tannic acid), and ensure that the treated wastewater meets discharge standards. Adding chemical agents to the wastewater can enhance purification effects, remove specific pollutants, or regulate water quality. These agents play a crucial role in wastewater treatment, helping to remove suspended solids, organic matter, heavy metal ions, and other pollutants, while also adjusting parameters such as pH and oxidation-reduction potential to achieve water purification.

[0003] Existing technologies also offer some solutions: for example, a patent with publication number CN117658349A discloses a tannic acid production waste liquid treatment device, including a reaction cylinder, an anti-backflow component fixed to the bottom of the reaction cylinder, a power module for driving the bidirectional screw in the anti-backflow component, and a mixing component arranged in a circumferential array on the top of the anti-backflow component, which is used to block the waste liquid vortex inside the reaction cylinder and generate a vortex. By blocking the waste liquid vortex inside the reaction cylinder and generating a vortex through the mixing component, the aeration range of the device is increased, which solves the problem that the waste liquid is prone to backflow and the aeration range is small when aerating tannic acid waste liquid in the prior art.

[0004] Existing equipment treats wastewater from tannic acid production by adding specific reagents to remove pollutants such as suspended solids, organic matter, and heavy metal ions. However, current wastewater treatment equipment typically adds the reagents to the reaction chamber through a fixed point and then stirs them to ensure thorough mixing with the wastewater. Because the reagents are added to the reaction chamber at a fixed point, the distribution of the reagents in the wastewater is uneven. Even after stirring, localized areas may still have excessively high or low reagent concentrations, affecting the wastewater treatment effect.

[0005] Therefore, the present invention provides a tannic acid production wastewater purification device. Summary of the Invention

[0006] To overcome the shortcomings of the prior art: to solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The tannic acid production wastewater purification device of the present invention includes a reaction cylinder, an inlet pipe fixedly connected to one side of the upper part of the reaction cylinder, an inlet valve fixedly connected to the outer wall of the inlet pipe, an outlet chamber fixedly connected to the bottom of the reaction cylinder, an outlet valve fixedly connected to the outer wall of the outlet chamber, a fixing frame fixedly installed on the outer wall of the reaction cylinder, and gas outlet pipes symmetrically fixedly connected to the top of the reaction cylinder. A liquid separation component is provided inside the reaction cylinder, which is used to add the reagent to various areas inside the reaction cylinder. A stirring component is provided outside the liquid separation component, which is used to stir the reagent and wastewater to mix them thoroughly. A scraping component is provided inside the reaction cylinder, which is used to remove impurities from the bottom surface of the inner wall of the reaction cylinder.

[0008] Preferably, the liquid separation assembly includes a liquid storage cylinder, the top end of which is rotatably connected to the inner wall of the top surface of the reaction cylinder, and the bottom end of which is rotatably connected to the inner wall of the bottom surface of the reaction cylinder. The liquid storage cylinder is located at the center of the reaction cylinder. Multiple sets of liquid outlet holes are evenly opened on the outer wall of the liquid storage cylinder. Each set of liquid outlet holes consists of several holes arranged longitudinally and evenly on the surface of the liquid storage cylinder. A spraying assembly is provided inside the liquid storage cylinder to allow the reagent to be sprayed out from each liquid outlet hole.

[0009] Preferably, the spraying assembly includes a rotating shaft located inside the liquid storage cylinder and rotatably connected at both ends to the inner walls of the top and bottom surfaces of the reaction cylinder, respectively. A motor is fixedly installed at the bottom of the reaction cylinder, and the output shaft of the motor is fixedly connected to one end of the rotating shaft. Multiple fixed push plates are fixedly connected to the outer wall of the rotating shaft. The end of the fixed push plate away from the rotating shaft is arc-shaped and fits against the inner wall of the liquid storage cylinder. Multiple blocking plates are provided on the inner wall of the liquid storage cylinder. One side of each blocking plate is arc-shaped and fits against one side of multiple sets of liquid outlet holes. The other side of each blocking plate fits against the outer wall of the rotating shaft. A liquid storage chamber is formed in the area between each fixed push plate and the blocking plate. An inlet assembly for adding the agent into each liquid storage chamber is provided above the liquid storage chamber. A linkage assembly is provided between each fixed push plate and the blocking plate.

[0010] Preferably, the linkage assembly includes multiple sets of arc-shaped push rods, with a number of arc-shaped push rods in each set. One side of each fixed push plate is fixedly connected to one end of each set of arc-shaped push rods. The outer walls of each set of arc-shaped push rods are inserted into the inner walls of each blocking plate. Each arc-shaped push rod is equipped with a high-strength spring on its exterior. One end of each high-strength spring is fixedly connected to one side of each blocking plate. The other end of each high-strength spring is fixedly connected to a frustum block. One side of each frustum block is fixedly connected to the end of the arc-shaped push rod away from the fixed push plate. Multiple limiting blocks are fixedly connected to the inner wall of the liquid storage cylinder. The multiple limiting blocks are located on one side of each of the multiple blocking plates.

[0011] Preferably, the length of one end of the arc surface of the blocking plate is slightly larger than the outer diameter of the liquid outlet, and the distance between the side of the blocking plate near the limiting block and the limiting block is the same as the thickness of the blocking plate.

[0012] Preferably, a blocking disc is rotatably connected to the top of the liquid storage cylinder, and the blocking disc is fixedly installed on the top of the reaction cylinder.

[0013] Preferably, the liquid inlet assembly includes a liquid tank, which is fixedly installed on the top of the reaction cylinder. The bottom of the liquid tank is fixedly connected to multiple connecting pipes, the outer walls of the multiple connecting pipes are respectively inserted into the inner wall of the blocking circular plate, the outlets of the multiple connecting pipes are all located directly above the liquid storage chamber, and one-way valves are provided on the outside of the multiple connecting pipes.

[0014] Preferably, multiple stirring rods are uniformly and fixedly connected to the outer wall of the liquid storage cylinder, and multiple stirring blades are fixedly connected to the outer wall of each stirring rod.

[0015] Preferably, the end of each stirring rod away from the liquid storage cylinder is in contact with the inner wall of the reaction cylinder, and a gear is fixedly connected to the outer wall of each stirring rod. Multiple annular rack plates are fixedly installed on the inner wall of the reaction cylinder, and the teeth of the annular rack plates mesh with and are compatible with the teeth of the gears.

[0016] Preferably, multiple scrapers are fixedly connected to the bottom outer wall of the liquid storage cylinder, and the bottom of the multiple scrapers are respectively attached to the bottom inner wall of the reaction cylinder.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The tannic acid production wastewater purification device of the present invention adds the reagent to various areas inside the reaction cylinder through a liquid separation component. The distribution of the reagent in various areas of the reaction cylinder can ensure that the pollutants in the wastewater are in full contact with the reagent, avoiding local reagent concentrations that are too high or too low. With the help of the set stirring component, the wastewater in the entire reaction cylinder can be effectively treated, thereby optimizing the reaction effect and improving the quality of wastewater treatment.

[0019] 2. The tannic acid production wastewater purification device of the present invention gradually brings the fixed push plate into contact with the blocking plate. As the fixed push plate rotates and comes into contact with the blocking plate, the generated squeezing force causes the reagent between the storage chambers to be sprayed out from one side of several outlet holes. When the fixed push plate and the blocking plate are completely in contact, all the reagent between each storage chamber is sprayed out, thereby achieving the effect of uniform distribution of reagent in each area inside the reaction cylinder.

[0020] 3. The tannic acid production wastewater purification device of the present invention uses a fixed push plate that is subjected to rotational force and transferred to a storage cylinder via a limiting block. This causes the storage cylinder to rotate inside the reaction cylinder. When the storage cylinder rotates, it drives multiple stirring rods and stirring blades to rotate as well, allowing the reagent to fully mix and react with the wastewater. The entire rotation process is integrated, and the reagent can be stirred and mixed immediately after it is all added, thereby optimizing the reaction time of the entire wastewater treatment. When the reagent and wastewater are mixed, the chemical reaction can reach equilibrium more quickly, thus shortening the reaction time and improving the efficiency of wastewater treatment. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional view of the entire invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the reaction cylinder in this invention;

[0024] Figure 3 This is a schematic diagram of the structure of the medicine liquid tank in this invention;

[0025] Figure 4 This is a schematic diagram of the structure at the rotating shaft in this invention;

[0026] Figure 5 This is a schematic diagram of the structure of the blocking plate in this invention;

[0027] Figure 6 This is a schematic diagram of the structure of the liquid storage cylinder in this invention;

[0028] Figure 7 This is a schematic diagram of the structure of the annular rack plate in this invention.

[0029] In the diagram: 1. Reaction cylinder; 2. Inlet pipe; 3. Inlet valve; 4. Outlet chamber; 5. Outlet valve; 6. Fixing frame; 7. Storage cylinder; 8. Outlet hole; 9. Rotating shaft; 10. Blocking plate; 11. Fixed push plate; 12. Limiting block; 13. Storage chamber; 14. Arc-shaped push rod; 15. High-strength spring; 16. Frustum block; 17. Motor; 18. Blocking plate; 19. Medicine tank; 20. Connecting pipe; 21. One-way valve; 22. Stirring rod; 23. Stirring blade; 24. Gear; 25. Annular rack plate; 26. Scraper; 27. Gas outlet pipe. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 7As shown, the present invention provides a technical solution: a tannic acid production wastewater purification device, including a reaction cylinder 1, an inlet pipe 2 fixedly connected to one side of the upper part of the reaction cylinder 1, an inlet valve 3 fixedly connected to the outer wall of the inlet pipe 2, an outlet chamber 4 fixedly connected to the bottom of the reaction cylinder 1, an outlet valve 5 fixedly connected to the outer wall of the outlet chamber 4, a fixing frame 6 fixedly installed on the outer wall of the reaction cylinder 1, and an air outlet pipe 27 symmetrically connected to the top of the reaction cylinder 1. A liquid separation component is provided inside the reaction cylinder 1, which is used to add the reagent to various areas inside the reaction cylinder 1. A stirring component is provided outside the liquid separation component, which is used to stir and fully mix the reagent and wastewater. A scraping component is provided inside the reaction cylinder 1, which is used to remove impurities from the bottom surface of the inner wall of the reaction cylinder 1.

[0032] During operation: Before wastewater treatment, open the inlet valve 3 and add the wastewater generated during the tannic acid production process into the inside of the reaction cylinder 1 through the inlet pipe 2. When the amount of wastewater inside the reaction cylinder 1 reaches the appropriate capacity, close the inlet valve 3.

[0033] During wastewater treatment, the reagent is first added to various areas inside the reaction cylinder 1 through the liquid separation component. After the reagent is added, the stirring component quickly mixes the reagent with the wastewater. During the stirring process, the reagent reacts with pollutants such as suspended solids, organic matter, and heavy metal ions in the wastewater. The reaction produces a small amount of bubbles and impurities. The bubbles rise to the water surface and are discharged through the gas outlet pipe 27, while the impurities fall to the bottom of the reaction cylinder 1 to form sediment. After the reaction is completed, the liquid outlet valve 5 is opened, and the treated wastewater flows out through the liquid outlet chamber 4 for subsequent treatment. During the discharge process, the scraping component ensures that the sediment formed at the bottom of the reaction cylinder 1 does not adhere to its inner wall. All sediment can be completely discharged through the liquid outlet chamber 4, keeping the reaction cylinder 1 clean.

[0034] Through the above embodiments, the reagent is added to various areas inside the reaction cylinder 1 by the liquid separation component. The distribution of the reagent in various areas of the reaction cylinder 1 can ensure that the pollutants in the wastewater are in full contact with the reagent, avoiding situations where the local reagent concentration is too high or too low. With the help of the set stirring component, the reagent is fully mixed, ensuring that the wastewater in the entire reaction cylinder 1 can be effectively treated, thereby optimizing the reaction effect and improving the quality of wastewater treatment.

[0035] like Figures 4 to 6As shown, the liquid separation assembly includes a liquid storage cylinder 7. The top end of the liquid storage cylinder 7 is rotatably connected to the inner wall of the top surface of the reaction cylinder 1, and the bottom end of the liquid storage cylinder 7 is rotatably connected to the inner wall of the bottom surface of the reaction cylinder 1. The liquid storage cylinder 7 is located at the center of the reaction cylinder 1. Multiple sets of liquid outlet holes 8 are evenly opened on the outer wall of the liquid storage cylinder 7. Each set of liquid outlet holes 8 consists of several holes and is evenly arranged longitudinally on the surface of the liquid storage cylinder 7. A spraying assembly is provided inside the liquid storage cylinder 7. The spraying assembly is used to spray the agent from each liquid outlet hole 8.

[0036] During operation: After the agent is added to the designated position inside the storage tank 7, the spraying component is activated. The spraying component will cause the agent to be sprayed out simultaneously through several groups of outlet holes 8. Since the storage tank 7 is located at the center of the reaction tank 1, and each group of outlet holes 8 is evenly distributed on the outer wall of the storage tank 7, and several groups of outlet holes 8 are evenly arranged longitudinally on the surface of the storage tank 7, the agent sprayed through each outlet hole 8 will be distributed in various areas inside the reaction tank 1, thereby achieving the effect of contact between the agent and the wastewater in each area.

[0037] like Figures 4 to 6 As shown, the spraying assembly includes a rotating shaft 9, which is located inside the liquid storage cylinder 7 and its two ends are rotatably connected to the inner walls of the top and bottom surfaces of the reaction cylinder 1, respectively. A motor 17 is fixedly installed at the bottom of the reaction cylinder 1, and the output shaft of the motor 17 is fixedly connected to one end of the rotating shaft 9. Multiple fixed push plates 11 are fixedly connected to the outer wall of the rotating shaft 9. The end of the fixed push plate 11 away from the rotating shaft 9 is an arc surface and fits against the inner wall of the liquid storage cylinder 7. Multiple blocking plates 10 are provided on the inner wall of the liquid storage cylinder 7. One side of the multiple blocking plates 10 is an arc surface and fits against one side of multiple sets of liquid outlet holes 8, and the other side of the multiple blocking plates 10 fits against the outer wall of the rotating shaft 9. A liquid storage chamber 13 is formed in the area between each fixed push plate 11 and the blocking plate 10. An inlet assembly for adding the agent into each liquid storage chamber 13 is provided above the liquid storage chamber 13. A linkage assembly is provided between each fixed push plate 11 and the blocking plate 10.

[0038] During operation: In the initial state, each blocking plate 10 is located on one side of each set of liquid outlet holes 8. Since one side of the blocking plate 10 is an arc surface and is attached to one side of each set of liquid outlet holes 8, the liquid outlet holes 8 are in a closed state, and wastewater will not enter the interior of the liquid storage cylinder 7.

[0039] The liquid inlet assembly ensures that the medicine is evenly added to each of the storage chambers 13, located between the blocking plate 10 and the fixed push plate 11. Then, the motor 17 is started, and its output shaft drives the rotating shaft 9 to rotate. When the rotating shaft 9 rotates, it drives each fixed push plate 11 to rotate around the rotating shaft 9 and along the inner wall of the storage cylinder 7. When the fixed push plate 11 just starts to rotate, it drives the blocking plate 10 to rotate together with it through the linkage assembly. After the blocking plate 10 rotates to a certain angle, it will just open each liquid outlet 8. When the blocking plate 10 can no longer rotate, and the rotating shaft 9 continues to drive the multiple fixed push plates 11 to rotate, the fixed push plates 11 will gradually come into contact with the blocking plate 10. When the fixed push plates 11 gradually rotate and come into contact with the blocking plate 10, due to the pressure generated, the agent between the liquid storage chambers 13 will be sprayed out from one side of several liquid outlet holes 8. When the fixed push plates 11 and the blocking plate 10 are completely in contact, all the agent between each liquid storage chamber 13 will be sprayed out, thereby achieving the effect of evenly distributing the agent in each area inside the reaction cylinder 1.

[0040] It should be noted that during each wastewater treatment, the wastewater to be treated inside the reaction cylinder 1 and the agent to be sprayed from the storage cylinder 7 are both in a full state. The full filling of the agent ensures that the agent can be effectively squeezed when the blocking plate 10 and the fixed push plate 11 rotate, thereby ensuring that the agent can be effectively sprayed out. The full filling of the wastewater ensures that the sprayed agent can cover all areas of the wastewater.

[0041] like Figures 4 to 6 As shown, the linkage assembly includes multiple sets of arc-shaped push rods 14, with several arc-shaped push rods 14 in each set. One side of each fixed push plate 11 is fixedly connected to one end of each set of arc-shaped push rods 14. The outer walls of each set of several arc-shaped push rods 14 are inserted into the inner walls of each blocking plate 10. High-strength springs 15 are provided on the outside of each arc-shaped push rod 14. One end of each high-strength spring 15 is fixedly connected to one side of the blocking plate 10, and the other end of each high-strength spring 15 is fixedly connected to a frustum block 16. One side of each frustum block 16 is fixedly connected to the end of the arc-shaped push rod 14 away from the fixed push plate 11. Multiple limiting blocks 12 are fixedly connected to the inner wall of the liquid storage cylinder 7, and the multiple limiting blocks 12 are located on one side of each of the multiple blocking plates 10.

[0042] During operation: Initially, when the rotating shaft 9 rotates and drives the fixed push plate 11 to rotate, the fixed push plate 11 will drive the blocking plate 10 to rotate through the arc-shaped push rod 14. Due to the high-strength spring 15, the fixed push plate 11 will not deform when pushing the blocking plate 10 to rotate. When the blocking plate 10 rotates to fit against one side of the limit block 12, the fixed push plate 11 can no longer push the blocking plate 10 to rotate. At this time, the fixed push plate 11 will gradually approach the blocking plate 10. Since the liquid outlets 8 are no longer closed after the blocking plate 10 rotates, the medicine inside the storage chamber 13 will be sprayed out from the liquid outlets 8 as the fixed push plate 11 gradually approaches the blocking plate 10. When the fixed push plate 11 rotates to fit against the blocking plate 10, all the medicine is squeezed out. At this time, when the motor 17 drives the rotating shaft 9 to continue rotating, it will drive the entire storage cylinder 7 to rotate.

[0043] like Figures 4 to 6 As shown, the length of one end of the arc surface of the blocking plate 10 is slightly larger than the outer diameter of the liquid outlet 8, and the distance between the side of the blocking plate 10 near the limiting block 12 and the limiting block 12 is the same as the thickness of the blocking plate 10.

[0044] During operation: The length of one end of the arc surface of the blocking plate 10 is slightly larger than the outer diameter of the liquid outlet 8, so that the blocking plate 10 can just block one side of the liquid outlet 8 in the initial state. And because the distance between the side of the blocking plate 10 near the limiting block 12 and the limiting block 12 is the same as the thickness of the blocking plate 10, when the blocking plate 10 is in contact with the limiting block 12, the liquid outlet 8 can be fully opened. And when the fixed push plate 11 rotates to be in contact with the blocking plate 10, it can just completely squeeze out the medicine in the liquid storage chamber 13.

[0045] like Figures 2 to 3 As shown, a blocking disc 18 is rotatably connected to the top of the liquid storage cylinder 7, and the blocking disc 18 is fixedly installed on the top of the reaction cylinder 1.

[0046] During operation: The top of the entire liquid storage cylinder 7 is sealed by the blocking circular plate 18, so that when the fixed push plate 11 rotates and gradually approaches the blocking plate 10 to squeeze the agent, the agent will not overflow from the top of the liquid storage cylinder 7, but will only be sprayed out through one side of each liquid outlet hole 8.

[0047] like Figures 2 to 3 As shown, the liquid inlet assembly includes a liquid tank 19, which is fixedly installed on the top of the reaction cylinder 1. Multiple connecting pipes 20 are fixedly connected to the bottom of the liquid tank 19. The outer walls of the multiple connecting pipes 20 are respectively inserted into the inner wall of the blocking circular plate 18. The outlets of the multiple connecting pipes 20 are all located directly above the liquid storage chamber 13. A one-way valve 21 is provided on the outside of the multiple connecting pipes 20.

[0048] During operation: By opening each one-way valve 21, the medicine in the medicine tank 19 can enter each storage chamber 13 evenly through multiple connecting pipes 20. Due to the one-way valves 21, when the fixed push plate 11 rotates and gradually approaches the blocking plate 10 to squeeze the medicine, the medicine will not flow back into the medicine tank 19 through the connecting pipes 20, but can only be sprayed out from one side of each outlet hole 8.

[0049] like Figure 3 and Figure 7 As shown, multiple stirring rods 22 are uniformly fixedly connected to the outer wall of the liquid storage cylinder 7, and multiple stirring blades 23 are fixedly connected to the outer wall of each stirring rod 22.

[0050] During operation: When the fixed push plate 11 rotates to fit against the blocking plate 10, causing all the reagent to be squeezed out, the motor 17 drives the rotating shaft 9 to continue rotating. At this time, the fixed push plate 11 and the blocking plate 10 can no longer rotate due to the restriction of the limiting block 12. The fixed push plate 11, under the rotational force, will transfer to the storage cylinder 7 through the limiting block 12, causing the storage cylinder 7 to rotate inside the reaction cylinder 1. When the storage cylinder 7 rotates, it will drive multiple stirring rods 22 and stirring blades 23 to rotate, so that the reagent can be fully mixed with the wastewater to react. The entire rotation process is integrated. After all the reagent is added, it can be stirred and mixed immediately, thereby optimizing the reaction time of the entire wastewater treatment. When the reagent and wastewater are mixed, the chemical reaction can reach the equilibrium state more quickly, thereby shortening the reaction time and improving the efficiency of wastewater treatment.

[0051] like Figure 3 and Figure 7 As shown, the end of each stirring rod 22 away from the liquid storage cylinder 7 is attached to the inner wall of the reaction cylinder 1. A gear 24 is fixedly connected to the outer wall of each stirring rod 22. Multiple annular rack plates 25 are fixedly installed on the inner wall of the reaction cylinder 1. The teeth of the annular rack plates 25 mesh with the teeth of the gears 24 and are compatible.

[0052] During operation: When the stirring rod 22 and the stirring blade 23 revolve around the storage tank 7 on the inner wall of the reaction tank 1, the gear 24 and the ring rack plate 25 will mesh, causing the stirring rod 22 and the stirring blade 23 to rotate. The combination of revolution and rotation makes the stirring blade 23 more effective in stirring, and the reaction between the reagent and the wastewater is more complete.

[0053] like Figures 2 to 3 As shown, multiple scrapers 26 are fixedly connected to the bottom outer wall of the liquid storage cylinder 7, and the bottom of the multiple scrapers 26 are respectively attached to the bottom inner wall of the reaction cylinder 1.

[0054] During operation: When the storage tank 7 rotates, multiple scrapers 26 will rotate around the storage tank 7 as the axis. Since the bottom of the scraper 26 is in contact with the inner wall of the bottom surface of the reaction tank 1, when the scraper 26 rotates, it can continuously scrape off the precipitate that has fallen into the bottom of the reaction tank 1, so as to prevent the precipitate from adhering to the inner wall surface of the reaction tank 1 and thus not being able to flow out of the outlet chamber 4.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tannic acid production wastewater purification device, comprising a reaction cylinder (1), characterized in that: A liquid inlet pipe (2) is fixedly connected to the upper side of the reaction cylinder (1), and a liquid inlet valve (3) is fixedly connected to the outer wall of the liquid inlet pipe (2). A liquid outlet chamber (4) is fixedly connected to the bottom of the reaction cylinder (1), and a liquid outlet valve (5) is fixedly connected to the outer wall of the liquid outlet chamber (4). A fixing frame (6) is fixedly installed on the outer wall of the reaction cylinder (1). A gas outlet pipe (27) is symmetrically fixedly connected to the top of the reaction cylinder (1). A liquid separation component is provided inside the reaction cylinder (1). The liquid separation component is used to add the reagent to various areas inside the reaction cylinder (1). A stirring component is provided outside the liquid separation component. The stirring component is used to stir the reagent and wastewater to mix them thoroughly. A scraping component is provided inside the reaction cylinder (1). The scraping component is used to remove impurities from the bottom surface of the inner wall of the reaction cylinder (1). The liquid separation assembly includes a liquid storage cylinder (7), the top end of which is rotatably connected to the inner wall of the top surface of the reaction cylinder (1), the bottom end of which is rotatably connected to the inner wall of the bottom surface of the reaction cylinder (1), and the liquid storage cylinder (7) is located at the center of the reaction cylinder (1). Multiple sets of liquid outlet holes (8) are evenly opened on the outer wall of the liquid storage cylinder (7). The number of liquid outlet holes (8) in each set is several and they are evenly arranged longitudinally on the surface of the liquid storage cylinder (7). A spray assembly is provided inside the liquid storage cylinder (7). The spray assembly is used to allow the agent to be sprayed out from each liquid outlet hole (8). The spray assembly includes a rotating shaft (9), which is located inside the liquid storage cylinder (7) and its two ends are rotatably connected to the inner walls of the top and bottom surfaces of the reaction cylinder (1), respectively. A motor (17) is fixedly installed at the bottom of the reaction cylinder (1), and the output shaft of the motor (17) is fixedly connected to one end of the rotating shaft (9). Multiple fixed push plates (11) are fixedly connected to the outer wall of the rotating shaft (9). The end of the fixed push plate (11) away from the rotating shaft (9) is arc-shaped and fits against the inner wall of the liquid storage cylinder (7). The inner wall of the liquid storage cylinder (7) is provided with There are multiple blocking plates (10), one side of each blocking plate (10) is curved and is respectively attached to one side of multiple sets of liquid outlet holes (8), and the other side of each blocking plate (10) is attached to the outer wall of the rotating shaft (9). A liquid storage chamber (13) is formed in the area between each fixed push plate (11) and the blocking plate (10). An inlet component for adding medicine to each liquid storage chamber (13) is provided above the liquid storage chamber (13). A linkage component is provided between each fixed push plate (11) and the blocking plate (10). Multiple stirring rods (22) are uniformly fixedly connected to the outer wall of the liquid storage cylinder (7), and multiple stirring blades (23) are fixedly connected to the outer wall of each stirring rod (22). Each stirring rod (22) has one end away from the liquid storage cylinder (7) attached to the inner wall of the reaction cylinder (1). Each stirring rod (22) has a gear (24) fixedly connected to its outer wall. Multiple annular rack plates (25) are fixedly installed on the inner wall of the reaction cylinder (1). The teeth of the annular rack plates (25) mesh with the teeth of the gears (24) and are compatible.

2. The tannic acid production wastewater purification device according to claim 1, characterized in that: The linkage component includes multiple sets of arc-shaped push rods (14), each set of arc-shaped push rods (14) has several units, one side of each fixed push plate (11) is fixedly connected to one end of each set of arc-shaped push rods (14), the outer wall of each set of several arc-shaped push rods (14) is inserted into the inner wall of each blocking plate (10), each arc-shaped push rod (14) is provided with a high-strength spring (15), one end of each high-strength spring (15) is fixedly connected to one side of each blocking plate (10), the other end of each high-strength spring (15) is fixedly connected to a frustum block (16), one side of each frustum block (16) is fixedly connected to the end of the arc-shaped push rod (14) away from the fixed push plate (11), the inner wall of the liquid storage cylinder (7) is fixedly connected with multiple limit blocks (12), the multiple limit blocks (12) are located on one side of each of the multiple blocking plates (10).

3. The tannic acid production wastewater purification device according to claim 2, characterized in that: The length of one end of the arc surface of the blocking plate (10) is slightly larger than the outer diameter of the liquid outlet (8). The distance between the side of the blocking plate (10) close to the limiting block (12) and the limiting block (12) is the same as the thickness of the blocking plate (10).

4. The tannic acid production wastewater purification device according to claim 3, characterized in that: A blocking disc (18) is rotatably connected to the top of the liquid storage cylinder (7), and the blocking disc (18) is fixedly installed on the top of the reaction cylinder (1).

5. The tannic acid production wastewater purification device according to claim 4, characterized in that: The liquid inlet assembly includes a liquid tank (19), which is fixedly installed on the top of the reaction cylinder (1). The bottom of the liquid tank (19) is connected to multiple connecting pipes (20). The outer walls of the multiple connecting pipes (20) are respectively inserted into the inner wall of the blocking circular plate (18). The outlets of the multiple connecting pipes (20) are all located directly above the liquid storage chamber (13). A one-way valve (21) is provided on the outside of the multiple connecting pipes (20).

6. The tannic acid production wastewater purification device according to claim 5, characterized in that: Multiple scrapers (26) are fixedly connected to the bottom outer wall of the liquid storage cylinder (7), and the bottom of the multiple scrapers (26) is respectively attached to the bottom inner wall of the reaction cylinder (1).

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