Dechlorination equipment and its operation for ethylene glycol products

Abstract

This invention belongs to the technical field of ethylene glycol solution dechlorination devices, specifically an ethylene glycol product dechlorination salt device and its usage method, including an ion exchange tank. The bottom of the ion exchange tank is fixedly equipped with an inlet and a drain outlet, the top of the ion exchange tank is fixedly equipped with an isolation top cover, and one side of the ion exchange tank is fixedly equipped with an outlet. Through a first control component, when the ion exchange resin shrinks, the second filter moves downward under the action of gravity and spring force. Simultaneously, the first control component promptly controls the device to stop the continued injection of ethylene glycol, avoiding the situation where the valve is not closed in time, causing ethylene glycol to remain in an injected state. This prevents some ethylene glycol from entering the next process without dechlorination salts, potentially leading to ethylene glycol failing to meet national standards after treatment. This invention improves the ethylene glycol treatment effect and also increases the reaction efficiency of the device.

Description

Technical Field

[0001] This invention relates to the technical field of ethylene glycol solution dechlorination equipment, specifically to an ethylene glycol product dechlorination salt equipment and its usage method. Background Technology

[0002] Ethylene glycol, also known as glycol or 1,2-ethylene glycol, abbreviated as EG, has the chemical formula (CH₂OH)₂ and is the simplest diol. It is a colorless, odorless, sweet-tasting liquid commonly used as a solvent, antifreeze, and raw material for synthetic polyester. However, ethylene glycol is often contaminated during mining and transportation, acquiring a certain amount of chloride salts, which can negatively impact the environment, human health, and industrial production. Therefore, dechlorination treatment is necessary to ensure that the chlorine content of ethylene glycol products is below the national standard.

[0003] Existing ethylene glycol dechlorination devices dechlorinate ethylene glycol by allowing it to flow into a tank filled with ion exchange resin. The resin then strips and absorbs chloride ions from the ethylene glycol, thus achieving dechlorination. However, the exchange capacity of the ion exchange resin gradually decreases during use, requiring the device to be shut down and the resin regenerated after a certain flow rate. Typically, the ethylene glycol processing capacity is calculated based on the flow meter, and the valve is manually closed for regeneration. However, this process is prone to failure to close the valve promptly, resulting in continued use of resin with poor exchange efficiency, ultimately leading to ethylene glycol treatment that does not meet national standards. Therefore, this ethylene glycol dechlorination device is proposed to address these issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies and solve the problem of continued use without timely valve closure, which can reduce the contact area between ethylene glycol and resin during exchange and thus affect the reaction rate of ethylene glycol, and because ethylene glycol is constantly being injected and the reaction between ethylene glycol and resin is relatively slow, some ethylene glycol may enter the next process without being dechlorinated, potentially leading to ethylene glycol failing to meet national standards after treatment, this invention proposes an ethylene glycol dechlorination device and its usage method.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: The ethylene glycol product dechlorination device of this invention includes an ion exchange tank; an inlet and a drain are fixedly installed at the bottom of the ion exchange tank, an isolation top cover is fixedly installed at the top of the ion exchange tank, an outlet is fixedly installed on one side of the ion exchange tank, a first filter screen and a second filter screen are provided on the inner wall of the ion exchange tank, the second filter screen is placed above the first filter screen, the second filter screen is slidably installed on the inner wall of the ion exchange tank, and a first control component is provided at the top of the second filter screen; through the provided first and second control components, when the performance of the ion exchange resin deteriorates, a large number of ions adsorb and the resin pores shrink, resulting in a shrinkage phenomenon, the device can be configured to... Under the influence of gravity and spring force, the second filter screen moves downwards. Simultaneously, the first and second control components control the opening and closing of the inlet and outlet, thereby timely controlling the device to stop the continued injection of ethylene glycol. This avoids the situation where the valve is not closed in time and continued use can easily lead to a reduction in the contact area between ethylene glycol and resin during exchange, thus affecting the reaction rate of ethylene glycol. At the same time, since ethylene glycol is constantly being injected and the reaction between ethylene glycol and resin is relatively slow, some ethylene glycol may easily enter the next process without dechlorination salts, which may result in the treated ethylene glycol failing to meet national standards. This improves the treatment effect of ethylene glycol and also increases the reaction efficiency of the device.

[0006] Preferably, the first control component includes a base, a first rack, a first gear, a first rotating rod, a first bevel gear, a second bevel gear, a second rotating rod, a first control housing, a first ball valve, a connecting block, and a spring. The top of the second filter screen is fixedly mounted on the base, the top of the base is fixedly mounted on the first rack, the top of the first rack is provided with a third control component, the top of the first rack is fixedly mounted on the spring, the end of the spring away from the first rack is fixedly mounted on the inner wall of the isolation top cover, one side of the first rack is meshed with the first gear, the bottom of the first gear is provided with a loosening component, the inner wall of the first gear is fixedly mounted on the first rotating rod, the end of the first rotating rod away from the first gear passes through the isolation top cover and extends to the outer wall of the isolation top cover, the end of the first rotating rod placed on the outer wall of the isolation top cover is fixedly mounted with the first bevel gear. A second bevel gear is meshed with one end of a bevel gear, and a second rotating rod is fixedly installed at the bottom end of the second bevel gear. A first control housing is fitted onto the outer walls of the first bevel gear, the second bevel gear, and the second rotating rod. A connecting block is fixedly installed on one side of the first control housing, and the side of the connecting block away from the first control housing is fixedly installed on the outer wall of the ion exchange tank. A first ball valve is fixedly installed at the bottom end of the second rotating rod, and the first ball valve is placed on the inner wall of the inlet. The second rotating rod is rotatably connected to the inlet. A connecting block is fixedly installed on the outer wall of the first control housing, and the side of the connecting block away from the first control housing is fixedly installed on the outer wall of the ion exchange tank. A first ball valve is rotatably installed at the bottom end of the second rotating rod, and a second control component is provided at the bottom end of the first ball valve. This improves the treatment effect of ethylene glycol and also increases the reaction efficiency of the device.

[0007] Preferably, the second control component includes a third rotary rod, a third bevel gear, a fourth bevel gear, a fourth rotary rod, a second ball valve, and a rotating handle. The third rotary rod is fixedly mounted on the bottom end of the first ball valve. A third bevel gear is fixedly mounted on the end of the third rotary rod away from the first ball valve. A fourth bevel gear is meshed with one end of the third bevel gear. A fourth rotary rod is fixedly mounted on one side of the fourth bevel gear. A second ball valve is fixedly mounted on the end of the fourth rotary rod away from the fourth bevel gear. The second ball valve is rotatably mounted on the inner wall of the drain outlet. The fourth bevel gear is located away from the first ball valve. A rotating handle is fixedly installed on one side of the four rotating rods. A third control housing is sleeved on the outer wall of the third rotating rod, the third bevel gear, and the fourth bevel gear. The top of the third control housing is fixedly installed on the outer wall of the water inlet. A limit component is provided on the outer wall of the rotating handle. This avoids the problem that when the ion exchange resin is regenerated, the residual ethylene glycol waste liquid in the ion exchange tank reacts with the regenerated liquid, affecting the resin regeneration effect and causing a decrease in the subsequent dechlorination effect. This allows the waste liquid to be automatically discharged when the ethylene glycol stops flowing in, thus improving the subsequent dechlorination effect.

[0008] Preferably, both the first and second ball valves have ball valve housings on their outer walls. The ball valve housings are fixedly installed on the inner walls of the inlet and outlet. The side wall of the ball valve housing has a straight through hole, and the distance between the upper and lower sides of the straight through hole is the same as the radius of the first or second ball valve. This avoids the problem that the outlet will gradually open during the process of closing the inlet, resulting in untreated ethylene glycol being discharged directly from the outlet without passing through the inlet. This ensures that the outlet is closed when the inlet is open, or the outlet is open when the inlet is closed.

[0009] Preferably, the limiting component includes a rotating block, a first limiting block, and a second limiting block. The rotating block is fixedly installed on the outer wall of the rotating handle. The first limiting block and the second limiting block are respectively provided on both sides of the rotating block. The first limiting block and the second limiting block are fixedly installed on the outer wall of the third control housing and on the inner wall of the first control housing. The first limiting block, the second limiting block, and the axis of the rotating handle are arranged perpendicularly. With the limiting component, the rotating handle can only rotate 90 degrees when it is turned. This, in conjunction with the first control mechanism and the second control mechanism, can control the drain outlet to be closed during the inlet process and the inlet to be closed during the drain outlet opening process.

[0010] Preferably, the third control component includes a first locking block, a second control housing, and a second locking block. The first locking block is fixedly installed on the top of the first rack, and a second locking block abuts against one side of the first locking block. The second control housing is installed on the side of the second locking block away from the first locking block. The second locking block and the second control housing are connected by a drive component. The top of the second control housing is fixedly installed on the inner wall of the isolation top cover. This avoids the problem that after the inlet is manually opened, the regenerated liquid has not yet restored the volume of the resin, and the second filter screen closes the inlet again under the action of gravity and spring. It can fix the second filter screen when the inlet is opened. At the same time, after the regenerated liquid restores the volume of the resin, the second locking block disengages from the first locking block with the cooperation of the drive component, so that the first control component resumes operation. This allows the inlet to be automatically closed when ethylene glycol is injected for dechlorination.

[0011] Preferably, the drive assembly includes a drive gear, a second rack, a third rack, and a float. The third rack is fixedly installed on the side of the second locking block away from the first locking block. The third rack is slidably installed on the inner wall of the second control housing. The drive gear is meshed at the top of the third rack, and the second rack is meshed on one side of the drive gear. The second rack and the third rack are arranged perpendicular to each other. The float is fixedly installed at the bottom of the second rack and is placed below the second filter screen and inside the water inlet. With the drive assembly, when the ion exchange resin volume recovers, the resin expansion pushes the float upward, the float drives the second rack to move, the second rack drives the drive gear to rotate, the drive gear drives the third rack to move, and the third rack drives the second locking block to retract, releasing the contact between the second locking block and the first locking block. This avoids the problem that the first control assembly cannot reset due to the mutual contact and limitation between the first and second locking blocks when the resin volume recovers, thus preventing the device from operating normally and improving the reliability of the device.

[0012] Preferably, the loosening assembly includes a second gear, a fifth bevel gear, a sixth bevel gear, a loosening column, and a fifth rotating rod. The second gear is meshed with the bottom end of the first gear. The fifth rotating rod is fixedly installed on the inner wall of the second gear. The fifth bevel gear is fixedly installed on the outer wall of the fifth rotating rod. The sixth bevel gear is meshed with one side of the fifth bevel gear. The loosening column is fixedly installed at the bottom end of the sixth bevel gear. The loosening column passes through the second filter screen and extends below the second filter screen. The loosening column and the inner wall of the second filter screen are connected by a bearing. This design avoids the problem of resin being unable to participate in ion exchange due to tight accumulation, which increases the number of times the volume can be restored using regenerated liquid, resulting in waste. This improves the resin utilization rate and also allows for better resin restoration when using regenerated liquid, thus improving the resin restoration efficiency.

[0013] The method for using the dechlorination salt removal device for ethylene glycol products includes the following steps:

[0014] Step 1: When starting the dechlorination treatment of ethylene glycol, allow ethylene glycol to flow into the ion exchange tank through the inlet, so that the ethylene glycol can fully contact and react with the ion exchange resin filled in the ion exchange tank, and the ethylene glycol with the target ions removed is discharged from the outlet.

[0015] Step 2: After ethylene glycol reacts with the ion exchange resin for a period of time, the ion exchange resin adsorbs a large number of ions, causing the pores to shrink and resulting in a contraction phenomenon. This causes the float to move downwards due to gravity. The float drives the second rack to move, which in turn drives the drive gear to rotate. The drive gear then drives the third rack to move closer to the second locking block. The third rack then drives the second locking block to move. Simultaneously, the spring releases its elastic potential energy, pushing the first rack downwards. The first rack drives the first gear to rotate, which in turn drives the first rotating rod to rotate. The first rotating rod then drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate. The second bevel gear then drives the second rotating rod to rotate. The second rotating rod drives the first ball valve to rotate. When the performance of the ion exchange resin decreases to a certain extent, the first ball valve rotates 45 degrees and closes, stopping the inflow of ethylene glycol. The rotation of the first ball valve also drives the third rotating rod to rotate, which in turn drives the third bevel gear to rotate. The third bevel gear then drives the fourth bevel gear to rotate, which in turn drives the fourth rotating rod to rotate. The fourth rotating rod then drives the second ball valve to rotate, causing the second ball valve to also rotate to 45 degrees.

[0016] Step 3: After the first ball valve is closed and the flow of ethylene glycol stops, the ethylene glycol in the ion exchange tank continues to react with the resin, which drives the first control component to operate, thereby causing the first ball valve and the second ball valve to continue to rotate until the first gear is 90 degrees, so that the second ball valve gradually opens and the wastewater is discharged.

[0017] Step 4: After the wastewater is completely discharged, turn the handle to operate the first control component and the second control component, so that the first ball valve is turned to open and the second ball valve is turned to close, so that the regenerated liquid flows into the ion exchange tank. At the same time, the second filter screen moves upward, the second filter screen moves the base, the base moves the first rack, and the first rack moves the first locking block, so that the first locking block and the second locking block abut against each other, so that the first control component will not move due to gravity and the elastic potential energy of the spring, thereby closing the first ball valve.

[0018] Step 5: After the ion exchange resin has been regenerated for a period of time, the resin releases ions and begins to expand in volume, pushing the float to move upward. The float drives the second rack to move, the second rack drives the drive gear to rotate, the drive gear drives the third rack to move away from the second locking block, and the third rack drives the second locking block to move, so that the second locking block no longer abuts against the first locking block, thus releasing the limiting effect on the first control component.

[0019] Step 6: During the ethylene glycol dechlorination and resin regeneration process, the ion exchange resin undergoes shrinkage and swelling. Under the influence of gravity and the thrust of resin expansion, the second filter moves up and down. The second filter moves the base, which in turn moves the first rack. The first rack rotates the first gear, which in turn rotates the second gear. The second gear then rotates the fifth rotating rod, which in turn rotates the fifth bevel gear. The fifth bevel gear rotates the sixth bevel gear, which in turn rotates the loosening column. This causes the loosening column to slightly loosen the resin particles, allowing the resin to fully contact and react with the liquid.

[0020] The advantages of this invention are:

[0021] 1. This invention, through the setting of a first control component, when the adsorption performance of the ion exchange resin decreases and shrinkage occurs, the resin volume decreases. Under the action of the gravity of the second filter screen and the elasticity of the second control shell, the second filter screen moves downward. The second filter screen drives the base to move, the base then drives the first rack to move, the first rack drives the first gear to rotate, the first gear drives the first rotating rod to rotate, the first rotating rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear then drives the second rotating rod to rotate, and the second rotating rod drives the first ball valve to rotate, causing the first ball valve to block the inflow of ethylene glycol. Thus, the opening and closing of the inlet is controlled by the change in resin volume, avoiding the problem of continuous use of ion exchange resin causing the resin's adsorption performance to decrease, making it difficult to effectively remove chloride salts from ethylene glycol and easily failing to meet national standards. This improves the treatment effect of ethylene glycol and also improves the reaction efficiency of the device.

[0022] 2. This invention, through the provision of a second control component, enables the first ball valve to rotate when the ion exchange resin performance deteriorates and the first control component is closed. This rotation drives the third rotating rod, which in turn drives the third bevel gear, which in turn drives the fourth bevel gear, which in turn drives the fourth rotating rod. The fourth rotating rod then drives the second ball valve, opening the drain port and discharging untreated waste liquid. When regenerated liquid needs to flow in, the handle can be rotated to open the first ball valve and close the second ball valve via the first control component. This avoids the problem of residual ethylene glycol waste liquid in the ion exchange tank reacting with the regenerated liquid during the regeneration of the ion exchange resin, which would affect the resin regeneration effect and lead to a decrease in the subsequent dechlorination effect. The waste liquid can be automatically discharged when the ethylene glycol flow stops, improving the subsequent dechlorination effect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the first control component of the present invention;

[0025] Figure 2 This is a schematic cross-sectional view of the first control component of the present invention;

[0026] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 For the present invention Figure 3 Enlarged view at point C;

[0028] Figure 5 For the present invention Figure 2 Enlarged view at point B in the middle;

[0029] Figure 6 This is a cross-sectional schematic diagram of the second control component of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged view of point D in the middle.

[0031] In the diagram: 1. Inlet; 2. Ion exchange tank; 3. First filter screen; 4. Second filter screen; 5. Outlet; 6. Isolation top cover; 7. Base; 8. First rack; 9. First gear; 10. First rotating rod; 11. First bevel gear; 12. Second bevel gear; 13. Second rotating rod; 14. First control housing; 15. First ball valve; 16. Third rotating rod; 17. Third bevel gear; 18. Fourth bevel gear; 19. Fourth rotating rod; 20. Second ball valve; 21. Drain 21. Drain outlet; 22. Rotating handle; 23. Connecting block; 24. Second gear; 25. Fifth bevel gear; 26. Sixth bevel gear; 27. First locking block; 28. Second control housing; 29. ​​Drive gear; 30. Second rack; 31. Third rack; 32. Second locking block; 33. Float; 34. Loosening column; 35. Rotating block; 36. First limiting block; 37. Second limiting block; 38. Spring; 39. Third control housing; 40. Ball valve housing; 41. Fifth rotating rod. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see Figure 1-7 As shown, the ethylene glycol dechlorination device includes an ion exchange tank 2. An inlet 1 and a drain 21 are fixedly installed at the bottom of the ion exchange tank 2. An isolation top cover 6 is fixedly installed at the top of the ion exchange tank 2. An outlet 5 is fixedly installed on one side of the ion exchange tank 2. A first filter screen 3 and a second filter screen 4 are provided on the inner wall of the ion exchange tank 2. The second filter screen 4 is positioned above the first filter screen 3 and is slidably installed on the inner wall of the ion exchange tank 2. A first control component is provided at the top of the second filter screen 4. Through the first and second control components, when the performance of the ion exchange resin deteriorates, a large number of ions adsorb and the resin porosity shrinks, causing a shrinkage phenomenon, the second filter screen 4... Under the action of gravity and the elastic force of spring 38, the second filter screen 4 moves downward. At the same time, the first and second control components control the opening and closing of the inlet 1 and the outlet 21, thereby timely controlling the device to stop the continued injection of ethylene glycol. This avoids the situation where the valve is not closed in time and the device continues to be used, which can easily lead to a reduction in the contact area between ethylene glycol and resin during the exchange process, thus affecting the reaction rate of ethylene glycol. At the same time, since ethylene glycol is constantly being injected and the reaction between ethylene glycol and resin is relatively slow, some ethylene glycol may easily enter the next process without dechlorination salts, which may lead to the problem that the treated ethylene glycol does not meet national standards. This improves the treatment effect of ethylene glycol and also improves the reaction efficiency of the device.

[0035] Please see Figure 1-3As shown, the first control component includes a base 7, a first rack 8, a first gear 9, a first rotating rod 10, a first bevel gear 11, a second bevel gear 12, a second rotating rod 13, a first control housing 14, a first ball valve 15, a connecting block 23, and a spring 38. The base 7 is fixedly mounted on the top of the second filter screen 4. The first rack 8 is fixedly mounted on the top of the base 7. A third control component is disposed on the top of the first rack 8. A spring 38 is fixedly mounted on the top of the first rack 8. The end of the spring 38 away from the first rack 8 is fixedly mounted on the inner wall of the isolation top cover 6. The first gear 9 is meshed on one side of the first rack 8. A loosening component is disposed at the bottom of the first gear 9. A first rotating rod 10 is fixedly installed on the inner wall. The end of the first rotating rod 10 away from the first gear 9 passes through the isolation top cover 6 and extends to the outer wall of the isolation top cover 6. A first bevel gear 11 is fixedly installed at the end of the first rotating rod 10 on the outer wall of the isolation top cover 6. A second bevel gear 12 is meshed at one end of the first bevel gear 11. A second rotating rod 13 is fixedly installed at the bottom end of the second bevel gear 12. A first control housing 14 is sleeved on the outer walls of the first bevel gear 11, the second bevel gear 12, and the second rotating rod 13. A connecting block 23 is fixedly installed on one side of the first control housing 14. The side of the connecting block 23 away from the first control housing 14 is fixedly installed on the outer wall of the ion exchange tank 2. The second rotating rod... A first ball valve 15 is fixedly installed at the bottom of the second rotating rod 13. The first ball valve 15 is placed on the inner wall of the inlet 1. The second rotating rod 13 is rotatably connected to the inlet 1. A connecting block 23 is fixedly installed on the outer wall of the first control housing 14. The side of the connecting block 23 away from the first control housing 14 is fixedly installed on the outer wall of the ion exchange tank 2. The first ball valve 15 is rotatably installed at the bottom of the second rotating rod 13. A second control component is provided at the bottom of the first ball valve 15. Through the first control component, when the adsorption performance of the ion exchange resin decreases and shrinkage occurs, the resin volume decreases. Under the action of the gravity of the second filter screen 4 and the elastic force of the second control housing 28, the second filter screen 4 moves downward, and the second filter screen 4 drives the base 7. The base 7 moves, which in turn moves the first rack 8. The first rack 8 drives the first gear 9 to rotate, which in turn drives the first rotating rod 10 to rotate. This causes the first rotating rod 10 to drive the first bevel gear 11 to rotate, which in turn drives the second bevel gear 12 to rotate. The second bevel gear 12 then drives the second rotating rod 13 to rotate, which in turn drives the first ball valve 15 to rotate. This causes the first ball valve 15 to block the inflow of ethylene glycol, thereby controlling the opening and closing of the inlet 1 by changing the resin volume. This avoids the problem of continuous use of ion exchange resin, which reduces the adsorption performance of the resin and makes it difficult to effectively remove chloride salts from ethylene glycol, thus failing to meet national standards. This improves the treatment effect of ethylene glycol and also increases the reaction efficiency of the device.

[0036] Example 2

[0037] Please see Figure 2-7 As shown in the comparative embodiment one, as another implementation of the present invention, the second control component includes a third rotating rod 16, a third bevel gear 17, a fourth bevel gear 18, a fourth rotating rod 19, a second ball valve 20, and a rotating handle 22. The third rotating rod 16 is fixedly installed at the bottom end of the first ball valve 15. The third bevel gear 17 is fixedly installed at the end of the third rotating rod 16 away from the first ball valve 15. The fourth bevel gear 18 is meshed at one end of the third bevel gear 17. The fourth rotating rod 19 is fixedly installed on one side of the fourth bevel gear 18. The second ball valve 20 is fixedly installed at the end of the fourth rotating rod 19 away from the fourth bevel gear 18. The second ball valve 20 is rotatably installed on the inner wall of the drain outlet 21. The rotating handle 22 is fixedly installed on the side of the fourth bevel gear 18 away from the fourth rotating rod 19. A third control housing 39 is sleeved on the outer walls of the third rotating rod 16, the third bevel gear 17, and the fourth bevel gear 18. The top end of the third control housing 39 is fixed... Installed on the outer wall of the inlet 1, the outer wall of the rotating handle 22 is equipped with a limit component. Through the second control component, when the performance of the ion exchange resin deteriorates and the first control component is closed, the first ball valve 15 rotates, driving the third rotating rod 16 to rotate. The third rotating rod 16 drives the third bevel gear 17 to rotate, which in turn drives the fourth bevel gear 18 to rotate. The fourth bevel gear 18 drives the fourth rotating rod 19 to rotate, which in turn drives the second ball valve 20 to rotate, opening the drain port 21 to discharge untreated waste liquid. When regenerated liquid needs to flow in, the handle 22 can be rotated to open the first ball valve 15 and close the second ball valve 20 via the first control component. This prevents the reaction between residual ethylene glycol waste liquid in the ion exchange tank 2 and the regenerated liquid during the regeneration of the ion exchange resin, which would affect the resin regeneration effect and lead to a decrease in subsequent dechlorination efficiency. This allows the waste liquid to be automatically discharged when the ethylene glycol flow stops, improving the subsequent dechlorination efficiency.

[0038] Please see Figure 5As shown, both the first ball valve 15 and the second ball valve 20 have ball valve housings 40 on their outer walls. The ball valve housings 40 are fixedly installed on the inner walls of the inlet 1 and the outlet 21. A straight through-hole is formed on the side wall of the ball valve housing 40, and the distance between the upper and lower sides of the straight through-hole is the same as the radius of the first ball valve 15 or the second ball valve 20. Through the straight through-hole on the side wall of the ball valve housing 40, the second ball valve 20 can be rotated when the first ball valve 15 rotates, but the outlet 21 will not open until the first ball valve 15 has rotated 45 degrees. This allows for wastewater discharge. Simultaneously, when the first ball valve 15 rotates in the reverse direction, the inlet 1 will not open during the first 45-degree rotation, and the drain port 21 will be closed. Then, when the first ball valve 15 rotates again, the inlet 1 begins to open, while the drain port 21 remains closed. This prevents the drain port 21 from gradually opening during the closing of the inlet 1, thus avoiding the problem of untreated ethylene glycol being discharged directly from the drain port 21 without passing through the inlet 1. This ensures that the drain port 21 is closed when the inlet 1 is open, or open when the inlet 1 is closed.

[0039] Please see Figure 5-7 As shown, the limiting component includes a rotating block 35, a first limiting block 36, and a second limiting block 37. The rotating block 35 is fixedly installed on the outer wall of the rotating handle 22. The first limiting block 36 and the second limiting block 37 are respectively provided on both sides of the rotating block 35. The first limiting block 36 and the second limiting block 37 are fixedly installed on the outer wall of the third control housing 39 and on the inner wall of the first control housing 14. The first limiting block 36, the second limiting block 37, and the rotating handle 22 are arranged perpendicularly to each other. With the limiting component, when the rotating handle 22 is turned, the rotating handle 22 can only rotate 90 degrees. Thus, in conjunction with the first control mechanism and the second control mechanism, it can control the drain outlet 21 to be in a closed state during the process of the water inlet 1 and the water inlet 1 to be in a closed state during the process of the drain outlet 21 being opened.

[0040] Please see Figure 2-4As shown, the third control component includes a first locking block 27, a second control housing 28, and a second locking block 32. The first locking block 27 is fixedly installed on the top of the first rack 8. The second locking block 32 abuts against one side of the first locking block 27. The second control housing 28 is installed on the side of the second locking block 32 away from the first locking block 27. The second locking block 32 and the second control housing 28 are connected by a drive component. The top of the second control housing 28 is fixedly installed on the inner wall of the isolation top cover 6. With the third control component, after the water inlet 1 is closed, because the first locking block 27 is located below the second locking block 32, and then the water inlet 1 is manually opened... When the inlet is opened, the first locking block 27 moves above the second locking block 32 and then abuts against the second locking block 32, thereby fixing the position of the second filter screen 4. This avoids the problem that after the inlet 1 is manually opened, the regenerated liquid has not yet restored the volume of the resin, and the second filter screen 4 closes the inlet 1 again under the action of gravity and spring 38. It can fix the second filter screen 4 when the inlet 1 is opened. At the same time, after the regenerated liquid restores the volume of the resin, with the cooperation of the drive component, the second locking block 32 disengages from the first locking block 27, thereby allowing the first control component to resume operation. This enables the automatic control of closing the inlet 1 when ethylene glycol is injected for dechlorination.

[0041] Please see Figure 2-4 As shown, the drive assembly includes a drive gear 29, a second rack 30, a third rack 31, and a float 33. The third rack 31 is fixedly mounted on the side of the second locking block 32 away from the first locking block 27. The third rack 31 is slidably mounted on the inner wall of the second control housing 28. The drive gear 29 is meshed at the top of the third rack 31, and the second rack 30 is meshed on one side of the drive gear 29. The second rack 30 and the third rack 31 are perpendicular to each other. A float 33 is fixedly mounted at the bottom of the second rack 30, and the float 33 is positioned below the second filter screen 4. 33 is placed inside the inlet 1; through the set drive component, when the ion exchange resin volume recovers, the resin expansion pushes the float 33 to move upward, the float 33 drives the second rack 30 to move, the second rack 30 drives the drive gear 29 to rotate, the drive gear 29 drives the third rack 31 to move, the third rack 31 drives the second locking block 32 to retract, releasing the second locking block 32 from the abutment of the first locking block 27, avoiding the problem that the first control component cannot be reset due to the mutual abutment and limitation of the first locking block 27 and the second locking block 32 when the resin volume expands and recovers, thus preventing the device from operating normally, and improving the reliability of the device.

[0042] Please see Figure 2-3As shown, the loosening assembly includes a second gear 24, a fifth bevel gear 25, a sixth bevel gear 26, a loosening post 34, and a fifth rotating rod 41. The second gear 24 is meshed with the bottom end of the first gear 9. The fifth rotating rod 41 is fixedly installed on the inner wall of the second gear 24. The fifth bevel gear 25 is fixedly installed on the outer wall of the fifth rotating rod 41. The sixth bevel gear 26 is meshed with one side of the fifth bevel gear 25. The loosening post 34 is fixedly installed at the bottom end of the sixth bevel gear 26. The loosening post 34 passes through the second filter screen 4 and extends to the bottom of the second filter screen 4. The loosening post 34 is connected to the inner wall of the second filter screen 4 by a bearing. The loosening component, when the resin volume changes, drives the second gear 24 to rotate through the operation of the first control component. The second gear 24 drives the fifth rotating rod 41 to rotate, the fifth rotating rod 41 drives the fifth bevel gear 25 to rotate, the fifth bevel gear 25 drives the sixth bevel gear 26 to rotate, and the sixth bevel gear 26 drives the loosening column 34 to rotate. This causes the loosening column 34 to slightly loosen the resin, avoiding the problem that the resin is tightly packed and some surfaces cannot participate in ion exchange, which would increase the number of times the volume is restored using regenerated solution and cause waste. This improves the resin utilization rate and also allows for better resin restoration when using regenerated solution, thus improving the resin restoration efficiency.

[0043] The method for using the dechlorination salt removal device for ethylene glycol products includes the following steps:

[0044] Step 1: When starting the dechlorination treatment of ethylene glycol, ethylene glycol flows into ion exchange tank 2 through inlet 1, so that ethylene glycol can fully contact and react with the ion exchange resin filled in ion exchange tank 2, and the ethylene glycol with the target ions removed is discharged from outlet 5.

[0045] Step 2: After ethylene glycol reacts with ion exchange resin for a period of time, the ion exchange resin adsorbs a large number of ions, causing the pores to shrink and resulting in a contraction phenomenon. This causes the float 33 to move downwards due to gravity. The float 33 drives the second rack 30 to move, the second rack 30 drives the drive gear 29 to rotate, the drive gear 29 drives the third rack 31 to move closer to the second locking block 32, the third rack 31 drives the second locking block 32 to move, and at the same time, the spring 38 releases elastic potential energy to push the first rack 8 downwards. The first rack 8 drives the first gear 9 to rotate, the first gear 9 drives the first rotating rod 10 to rotate, the first rotating rod 10 drives the first bevel gear 11 to rotate, the first bevel gear 11 drives the second bevel gear 12 to rotate, and the second bevel gear 12 drives the second rotating rod 13 to rotate. The second rotating rod 13 drives the first ball valve 15 to rotate. When the performance of the ion exchange resin decreases to a certain extent, the first ball valve 15 rotates 45 degrees and closes, stopping the inflow of ethylene glycol. The rotation of the first ball valve 15 also drives the third rotating rod 16 to rotate. The third rotating rod 16 drives the third bevel gear 17 to rotate. The third bevel gear 17 then drives the fourth bevel gear 18 to rotate. The fourth bevel gear 18 drives the fourth rotating rod 19 to rotate. The fourth rotating rod 19 drives the second ball valve 20 to rotate, so that the second ball valve 20 also rotates to 45 degrees.

[0046] Step 3: After the first ball valve 15 is closed and the flow of ethylene glycol is stopped, the ethylene glycol in the ion exchange tank 2 continues to react with the resin, which drives the first control component to operate, thereby causing the first ball valve 15 and the second ball valve 20 to continue to rotate until the first gear is 90 degrees, so that the second ball valve 20 gradually opens and the wastewater is discharged.

[0047] Step 4: After the wastewater is completely discharged, turn the handle 22 to operate the first control component and the second control component, so that the first ball valve 15 is turned to open and the second ball valve 20 is turned to close, so that the regenerated liquid flows into the ion exchange tank 2. At the same time, the second filter screen 4 moves upward, the second filter screen 4 drives the base 7 to move, the base 7 drives the first rack 8 to move, and the first rack 8 drives the first locking block 27 to move, so that the first locking block 27 abuts against the second locking block 32, so that the first control component will not move due to gravity and the elastic potential energy of the spring 38, thereby closing the first ball valve 15.

[0048] Step 5: After the ion exchange resin has been regenerated for a period of time, the resin releases ions and begins to expand in volume, pushing the float 33 to move upward. The float 33 drives the second rack 30 to move, the second rack 30 drives the drive gear 29 to rotate, the drive gear 29 drives the third rack 31 to move away from the second locking block 32, the third rack 31 drives the second locking block 32 to move, so that the second locking block 32 no longer abuts against the first locking block 27, thus releasing the limiting effect on the first control component.

[0049] Step 6: During the ethylene glycol dechlorination and resin regeneration process, the ion exchange resin undergoes shrinkage and swelling. Under the influence of gravity and the thrust of resin expansion, the second filter screen 4 moves up and down. The second filter screen 4 drives the base 7 to move, the base 7 drives the first rack 8 to move, the first rack 8 drives the first gear 9 to rotate, the first gear 9 drives the second gear 24 to rotate, the second gear 24 drives the fifth rotating rod 41 to rotate, the fifth rotating rod 41 drives the fifth bevel gear 25 to rotate, the fifth bevel gear 25 drives the sixth bevel gear 26 to rotate, and the sixth bevel gear 26 drives the loosening column 34 to rotate, causing the loosening column 34 to slightly loosen the resin particles, allowing the resin to fully contact and react with the liquid.

[0050] Working principle: When the dechlorination treatment of ethylene glycol begins, ethylene glycol flows into the ion exchange tank 2 through the inlet 1, allowing the ethylene glycol to fully contact and react with the ion exchange resin filled in the ion exchange tank 2. The ethylene glycol with the target ions removed is discharged from the outlet 5.

[0051] After ethylene glycol reacts with the ion exchange resin for a period of time, the ion exchange resin adsorbs a large number of ions, causing the pores to shrink and resulting in a contraction phenomenon. This causes the float 33 to move downwards due to gravity. The float 33 drives the second rack 30 to move, which in turn drives the drive gear 29 to rotate. The drive gear 29 drives the third rack 31 to move closer to the second locking block 32. The third rack 31 then drives the second locking block 32 to move. At the same time, the spring 38 releases its elastic potential energy, pushing the first rack 8 downwards. The first rack 8 drives the first gear 9 to rotate, which in turn drives the first rotating rod 10 to rotate. The first rotating rod 10 drives the first bevel gear 11 to rotate, which in turn drives the second bevel gear 12 to rotate. The second bevel gear 12 then drives the second rotating rod 13 to rotate. The second rotating rod 13 drives the first ball valve 15 to rotate. When the performance of the ion exchange resin decreases to a certain extent, the first ball valve 15 rotates 45 degrees and closes, stopping the inflow of ethylene glycol. The rotation of the first ball valve 15 also drives the third rotating rod 16 to rotate. The third rotating rod 16 drives the third bevel gear 17 to rotate. The third bevel gear 17 then drives the fourth bevel gear 18 to rotate. The fourth bevel gear 18 drives the fourth rotating rod 19 to rotate. The fourth rotating rod 19 drives the second ball valve 20 to rotate, so that the second ball valve 20 also rotates to 45 degrees.

[0052] After the first ball valve 15 is closed and the flow of ethylene glycol stops, the ethylene glycol in the ion exchange tank 2 continues to react with the resin, driving the first control component to operate, which in turn causes the first ball valve 15 and the second ball valve 20 to continue to rotate until the first gear reaches 90 degrees, causing the second ball valve 20 to gradually open and discharge the wastewater.

[0053] After the wastewater is completely discharged, turn the handle 22 to operate the first control component and the second control component, so that the first ball valve 15 is turned to open and the second ball valve 20 is turned to close, so that the regenerated liquid flows into the ion exchange tank 2. At the same time, the second filter screen 4 moves upward, the second filter screen 4 drives the base 7 to move, the base 7 drives the first rack 8 to move, and the first rack 8 drives the first locking block 27 to move, so that the first locking block 27 abuts against the second locking block 32, so that the first control component will not move due to gravity and the elastic potential energy of the spring 38, thereby closing the first ball valve 15.

[0054] After the ion exchange resin is regenerated for a period of time, the resin releases ions and begins to expand in volume, pushing the float 33 to move upward. The float 33 drives the second rack 30 to move, the second rack 30 drives the drive gear 29 to rotate, and the drive gear 29 drives the third rack 31 to move away from the second locking block 32. The third rack 31 drives the second locking block 32 to move, so that the second locking block 32 no longer abuts against the first locking block 27, thus releasing the limiting effect on the first control component.

[0055] During the regeneration of ethylene glycol dechlorination salt and resin, the ion exchange resin undergoes shrinkage and swelling. Under the action of gravity and the thrust of resin expansion, the second filter screen 4 moves up and down. The second filter screen 4 drives the base 7 to move, the base 7 drives the first rack 8 to move, the first rack 8 drives the first gear 9 to rotate, the first gear 9 drives the second gear 24 to rotate, the second gear 24 drives the fifth rotating rod 41 to rotate, the fifth rotating rod 41 drives the fifth bevel gear 25 to rotate, the fifth bevel gear 25 drives the sixth bevel gear 26 to rotate, and the sixth bevel gear 26 drives the loosening column 34 to rotate, causing the loosening column 34 to slightly loosen the resin particles, allowing the resin to fully contact and react with the liquid.

[0056] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] 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 claimed invention.

Claims

1. An apparatus for dechlorinating salt from ethylene glycol product, characterized by: The utility model provides an ion exchange tank (2), the bottom end fixed mounting of ion exchange tank (2) has water inlet (1) and blowdown (21), the top fixed mounting of ion exchange tank (2) has isolated top cover (6), the one side fixed mounting of ion exchange tank (2) has water outlet (5), the inner wall of ion exchange tank (2) is provided with first filter screen (3) and second filter screen (4), second filter screen (4) is placed first filter screen (3) top, second filter screen (4) sliding installation is in the inner wall of ion exchange tank (2), the top of second filter screen (4) is provided with first control assembly, first control assembly includes base (7), first rack (8), first gear (9), first rotating rod (10), first bevel gear (11), second bevel gear (12), second rotating rod (13), first control shell (14), first ball valve (15), connecting block (23) and spring (38), the top fixed mounting of second filter screen (4) has base (7), the top fixed mounting of base (7) has first rack (8), the top of first rack (8) is provided with third control assembly, the top fixed mounting of first rack (8) has spring (38), the inner wall of isolated top cover (6) is fixedly installed at the end away from first rack (8) of spring (38), the side of first rack (8) is engagedly installed with first gear (9), the bottom of first gear (9) is provided with loose assembly, the inner wall of first gear (9) is fixedly installed with first rotating rod (10), the end away from first gear (9) of first rotating rod (10) passes through isolated top cover (6) and extends to the outer wall of isolated top cover (6), first bevel gear (11) is fixedly installed at the end of first rotating rod (10) and is placed isolated top cover (6) outer wall, one end of first bevel gear (11) is engagedly installed with second bevel gear (12), the bottom of second bevel gear (12) is fixedly installed with second rotating rod (13), the outer wall of first bevel gear (11), second bevel gear (12) and second rotating rod (13) is sleeved with first control shell (14), one side of first control shell (14) is fixedly installed with connecting block (23), the outer wall of ion exchange tank (2) is fixedly installed at the side away from first control shell (14) of connecting block (23), the bottom of second rotating rod (13) is fixedly installed with first ball valve (15), first ball valve (15) is placed in the inner wall of water inlet (1), and second rotating rod (13) is rotatably connected between water inlet (1), the outer wall of first control shell (14) is fixedly installed with connecting block (23), the outer wall of ion exchange tank (2) is fixedly installed at the side away from first control shell (14) of connecting block (23), the bottom of second rotating rod (13) rotatably installs first ball valve (15), and the bottom of first ball valve (15) is provided with second control assembly.

2. The ethylene glycol product dechlorination salt apparatus of claim 1, wherein: The second control assembly comprises a third rotating rod (16), a third bevel gear (17), a fourth bevel gear (18), a fourth rotating rod (19), a second ball valve (20) and a rotating handle (22), the bottom end of the first ball valve (15) is fixedly installed with the third rotating rod (16), one end of the third rotating rod (16) away from the first ball valve (15) is fixedly installed with the third bevel gear (17), one end of the third bevel gear (17) is meshedly installed with the fourth bevel gear (18), one side of the fourth bevel gear (18) is fixedly installed with the fourth rotating rod (19), one end of the fourth rotating rod (19) away from the fourth bevel gear (18) is fixedly installed with the second ball valve (20), the second ball valve (20) is rotatably installed on the inner wall of the blowdown opening (21), one side of the fourth bevel gear (18) away from the fourth rotating rod (19) is fixedly installed with the rotating handle (22), the outer wall of the third rotating rod (16), the third bevel gear (17) and the fourth bevel gear (18) is sleeved with the third control shell (39), the top end of the third control shell (39) is fixedly installed on the outer wall of the water inlet (1), and the outer wall of the rotating handle (22) is provided with a limiting assembly.

3. The ethylene glycol product dechlorination salt apparatus of claim 1, wherein: The outer wall of the first ball valve (15) and the second ball valve (20) is provided with a ball valve shell (40), the ball valve shell (40) is fixedly installed on the inner wall of the water inlet (1) and the blowdown opening (21), the side wall of the ball valve shell (40) is provided with a linear hole, and the distance between the upper side and the lower side of the linear hole is the same as the radius of the first ball valve (15) or the second ball valve (20).

4. The ethylene glycol product dechlorination salt apparatus of claim 2, wherein: The limiting assembly comprises a rotating block (35), a first limiting block (36) and a second limiting block (37), the outer wall of the rotating handle (22) is fixedly installed with the rotating block (35), the two sides of the rotating block (35) are respectively provided with the first limiting block (36) and the second limiting block (37), the first limiting block (36) and the second limiting block (37) are fixedly installed on the outer wall of the third control shell (39), the first limiting block (36) and the second limiting block (37) are fixedly installed on the inner wall of the first control shell (14), and the first limiting block (36), the second limiting block (37) and the rotating handle (22) are vertically arranged.

5. The ethylene glycol product dechlorination salt apparatus of claim 1, wherein: The third control assembly comprises a first clamping block (27), a second control shell (28) and a second clamping block (32), the top end of the first rack (8) is fixedly installed with the first clamping block (27), one side of the first clamping block (27) abuts against the second clamping block (32), one side of the second clamping block (32) away from the first clamping block (27) is installed with the second control shell (28), the second clamping block (32) and the second control shell (28) are connected through a driving assembly, and the top end of the second control shell (28) is fixedly installed on the inner wall of the isolation top cover (6).

6. The ethylene glycol product dechlorination salt apparatus of claim 5, wherein: The driving assembly comprises a driving gear (29), a second rack (30), a third rack (31) and a floating ball (33), the third rack (31) is fixedly installed on the side, away from the first clamping block (27), of the second clamping block (32), the third rack (31) is slidingly installed on the inner wall of the second control shell (28), the top end of the third rack (31) is meshedly installed with the driving gear (29), one side of the driving gear (29) is meshedly installed with the second rack (30), the second rack (30) and the third rack (31) are perpendicular to each other, the bottom end of the second rack (30) is fixedly installed with the floating ball (33), the floating ball (33) is arranged below the second filter screen (4), and the floating ball (33) is arranged inside the water inlet (1).

7. The ethylene glycol product dechlorination salt apparatus of claim 1, wherein: The loosening assembly comprises a second gear (24), a fifth bevel gear (25), a sixth bevel gear (26), a loosening column (34) and a fifth rotating rod (41), the bottom end of the first gear (9) is meshedly installed with the second gear (24), the inner wall of the second gear (24) is fixedly installed with the fifth rotating rod (41), the outer wall of the fifth rotating rod (41) is fixedly installed with the fifth bevel gear (25), one side of the fifth bevel gear (25) is meshedly installed with the sixth bevel gear (26), the bottom end of the sixth bevel gear (26) is fixedly installed with the loosening column (34), the loosening column (34) penetrates through the second filter screen (4) and extends below the second filter screen (4), and the loosening column (34) and the inner wall of the second filter screen (4) are connected through a bearing.

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