A post-treatment device for a high-exchange-rate macroporous weakly basic anion exchange resin

Abstract

This utility model discloses a post-treatment device for high-exchange macroporous weakly basic anion exchange resin, relating to the field of polymer post-treatment technology. The utility model includes an alkaline washing tank, a rinsing assembly, and a filter box. The rinsing assembly and filter box are located on one side of the alkaline washing tank. The alkaline washing tank includes an outer shell and an inner liner, with an end cap fixedly connected to the top of both the outer shell and the inner liner. A water cavity is formed between the outer shell and the inner liner. A water injection pipe is fixedly connected through the upper periphery of the outer shell. Two heating pipes are installed inside the water cavity. A storage box is installed inside the filter box, with a screening box fixedly connected to the bottom of the storage box. A hollow plate is installed above the storage box, and a nozzle is fixedly connected through the bottom of the hollow plate. This utility model achieves integrated resin post-treatment by setting up an alkaline washing tank, a rinsing assembly, and a filter box. Dust will not adhere during the rinsing process, and the resin can be more easily removed after post-treatment, accelerating the replacement of inorganic acids and silicate ions.

Description

Technical Field

[0001] This invention belongs to the field of polymer post-treatment technology, and in particular relates to a post-treatment device for a high-exchange macroporous weakly basic anion exchange resin. Background Technology

[0002] High-exchange-rate macroporous weakly basic anion exchange resins can effectively exchange inorganic acids and silicate ions in acidic or neutral media, while also adsorbing impurities with larger molecular sizes. Suitable for non-aqueous environments, their macroporous structure provides abundant adsorption sites. Combined with the chemical effects of functional groups, this significantly improves adsorption selectivity and capacity. Primarily used in water treatment, pharmaceuticals, and food industries, they offer advantages such as high regeneration efficiency, large exchange capacity, and good mechanical strength. However, once the resin adsorbs a certain amount of inorganic acids and silicate ions, its adsorption efficiency will decrease, potentially preventing it from completing its adsorption process effectively. Directly replacing the resin with new resin is costly. Post-treatment of the resin allows for its recycling; however, the following problems still exist in the current post-treatment process: The general process for post-treatment of resin is as follows: alkaline washing, separation and buffer rinsing. First, the resin is soaked in sodium hydroxide solution to displace the inorganic acid and silicate ions adsorbed by the resin. Then, the displaced resin is separated. Finally, the resin is rinsed with neutral buffer solution until it is neutral. The whole process needs to be carried out in steps, which is inconvenient to operate. When rinsing the resin, if the nozzle is too far from the resin, the neutral solution sprayed from the nozzle may pick up dust from the air and carry the dust to the resin surface, affecting the resin's performance. After rinsing, the resin needs to be removed manually, which increases labor costs. When performing alkaline washing, the resin needs to be immersed in a sodium hydroxide solution to wait for the sodium hydroxide to displace the anions in the resin. This process takes a long time. Common methods to accelerate this process include stirring or heating. However, excessive stirring may cause the resin to re-integrate with the anions, while direct heating may damage the resin structure.

[0003] To address these issues, we provide a post-treatment device for high-exchange macroporous weakly basic anion exchange resin. Utility Model Content

[0004] The purpose of this invention is to provide a post-treatment device for high-exchange-rate macroporous weakly basic anion exchange resin. By setting up an alkaline washing tank, rinsing components, filter box, cylinder, hollow plate, nozzle, storage box, screening box, lifting lug, winch, outer shell, inner tank, water chamber, and heating pipe, it solves the problems of the inability to integrate resin post-treatment, the possibility of dust contamination during rinsing, the need for manual removal of resin after post-treatment, and the excessively long waiting time for replacement.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a post-treatment device for a high-exchange-rate macroporous weakly basic anion exchange resin, comprising an alkaline washing tank, a rinsing assembly, and a filter box; the rinsing assembly is provided on one side of the alkaline washing tank, the rinsing assembly includes a workbench, a through groove is provided in the middle of the workbench, and a filter box is fixedly connected inside the through groove. The alkaline washing tank includes an outer shell and an inner liner. The inner liner is located inside the outer shell. An end cap is fixedly connected to the top of both the outer shell and the inner liner. A water cavity is opened between the outer shell and the inner liner. A water injection pipe is fixedly connected through the upper part of the outer shell. Two heating pipes are installed inside the water cavity. The heating pipes are fixedly connected to the inner wall of the outer shell. The resin alkaline washing process is carried out in the inner tank of the alkaline washing tank. Before the resin alkaline washing process, water is added from the water injection tank. After the water level reaches the upper part of the water chamber, the heating pipe is activated to heat the water, which indirectly heats the sodium hydroxide solution and resin in the alkaline washing tank, thus accelerating the alkaline washing process. The filter box is equipped with a storage box inside, and a square cone-shaped screening box is fixedly connected to the bottom of the storage box. The rinsing assembly also includes a hollow plate located above the storage box, and a nozzle is fixedly connected through the bottom of the hollow plate. After alkaline washing, the resin enters the filter box and then falls into the storage box and sieving box. The bottom of the sieving box has many small holes. The solution that flows into the filter box along with the resin flows out through the small holes. During the rinsing process, the hollow plate moves to a position above the resin and close to it. The rinsing liquid sprayed from the nozzle can directly impact the resin, preventing dust from the air from adhering to it. The rinsing liquid flows out through the small holes. After rinsing is completed, the hollow plate and nozzle rise, and the storage box and sieving box rise. The resin in the storage box and sieving box rises together, making it easier to remove the post-processed resin.

[0006] Furthermore, a support leg is fixedly connected to the bottom of the outer shell; the support leg provides support for the alkaline washing tank.

[0007] Furthermore, a feeding port is provided at the top of the end cap located above the inner liner, and a discharge pipe is fixedly connected to the middle of the bottom of the inner liner. A valve is fixedly connected to the bottom of the discharge pipe. When performing alkaline washing, the resin to be post-treated is first added through the feeding port, and then sodium hydroxide solution is added through the feeding port to soak the resin. After alkaline washing is completed, the resin enters the filter box through the resin discharge pipe. When the valve is opened, the waste liquid can be discharged from the discharge pipe.

[0008] Furthermore, a resin discharge pipe is fixedly connected through the middle of the inner liner's periphery, and the end of the resin discharge pipe away from the inner liner extends through the outer shell and is fixedly connected through the filter box. After alkaline washing, the resin enters the filter box from the resin discharge pipe, where it is rinsed and filtered. Once rinsing and filtration are complete, the resin post-treatment is finished.

[0009] Furthermore, two support legs are fixedly connected at the four corners of the bottom of the workbench; the two support legs provide support for the rinsing assembly and the filter box.

[0010] Furthermore, an inverted U-shaped support frame is fixedly connected to the top of the workbench. The two vertical parts of the support frame are located on both sides of the filter box. A cylinder is fixedly connected to the center of the top of the support frame. The piston rod of the cylinder's telescopic end extends through the support frame and is fixedly connected to the top of the hollow disk. An inlet pipe is also fixedly connected through the top of the hollow disk. When rinsing, the cylinder is activated, and the piston rod at the cylinder's telescopic end extends, causing the hollow disk to descend. The solution enters the hollow disk through the neutral solution inlet pipe and is finally sprayed out from the nozzle onto the resin to perform resin rinsing.

[0011] Furthermore, a winch is fixedly connected to the top of the workbench on both sides of the filter box. The winch is located between the filter box and the support frame. Lifting lugs are fixedly connected to both sides of the top of the storage box. Fixed pulleys are fixedly connected to the top of both sides of the filter box. The wire rope of the winch passes around the fixed pulley and the hook lock at the end of the wire rope is movably connected to the lifting lug on the same side. After the resin is rinsed, the hollow disc is raised first, and then the winch is started. The winch's wire rope pulls the lifting lugs and the storage box and screening box that are fixedly connected to the lifting lugs to rise, thereby lifting the resin for easy removal.

[0012] Furthermore, a discharge pipe 2 is fixedly connected to the bottom of the filter box, and a pH meter is fixedly connected to one side of the discharge pipe 2. During the rinsing process, the waste liquid is discharged from the discharge pipe 2, and the rinsing can be stopped when the pH meter reading is close to neutral.

[0013] This utility model has the following beneficial effects: This invention solves the problem of the need for step-by-step post-treatment of resin by setting up an alkaline washing tank, a rinsing component, and a filter box. The resin is first washed with alkaline solution in the alkaline washing tank, and then enters the filter box through the resin discharge pipe. The rinsing component sprays a neutral solution onto the resin to rinse it, thus completing the post-treatment of the resin and achieving the goal of integrated resin post-treatment processing.

[0014] This invention solves the problem of potential dust contamination during resin rinsing by incorporating a cylinder, a hollow disc, and a nozzle. During rinsing, the cylinder is activated, and the piston rod at the cylinder's extension end moves, causing the hollow disc to move and bringing the nozzle closer to the resin in the storage box. This prevents the neutral solution sprayed from the nozzle from becoming contaminated with dust during the process, thus improving rinsing quality.

[0015] This invention solves the problem of manually removing resin after post-treatment by setting up a storage box, a screening box, lifting lugs, and a winch. After the resin post-treatment is completed, the winch is started, the wire rope of the winch retracts, pulls the lifting lugs, and then lifts up the storage box and screening box, thereby lifting the resin in the storage box and screening box and achieving the purpose of convenient resin removal.

[0016] This invention solves the problem of excessively long waiting time for replacement by setting up an outer shell, an inner liner, a water cavity, and a heating tube. The water cavity between the outer shell and the inner liner contains water. When the heating tube is activated, it heats the water. After the water temperature rises, the heat is transferred to the resin and sodium hydroxide solution inside the inner liner, accelerating the replacement of inorganic acids and silicate ions, and achieving the purpose of quickly completing the alkaline washing of the resin.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the post-treatment device for a high-exchange macroporous weakly basic anion exchange resin.

[0020] Figure 2 This is a cross-sectional view of the alkaline washing tank.

[0021] Figure 3 This is a schematic diagram of the connection structure between the rinsing assembly and the filter box.

[0022] Figure 4 This is a schematic diagram of the flushing assembly.

[0023] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0024] Figure 6 This is a cross-sectional view of the filter box.

[0025] Figure 7 This is a cross-sectional view of the filter box.

[0026] The attached diagram lists the components represented by each number as follows: 1. Alkali washing tank; 101. Support leg one; 102. Outer shell; 1021. Water injection pipe; 103. Inner liner; 1031. Discharge pipe one; 1032. Valve; 104. End cap; 1041. Feed port; 105. Heating pipe; 106. Resin discharge pipe; 107. Water chamber; 2. Rinsing assembly; 201. Workbench; 2011. Support leg two; 2012. Through groove; 202. Cylinder; 203. Support frame; 204. Hollow plate; 2041. Liquid inlet pipe; 2042. Nozzle; 3. Filter box; 301. Fixed pulley; 302. Winch; 303. Storage box; 3031. Lifting lug; 304. Screening box; 305. Discharge pipe two; 306. pH meter. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0028] Please see Figure 1-6 This utility model is a post-treatment device for a high-exchange macroporous weakly basic anion exchange resin, including an alkaline washing tank 1, a rinsing assembly 2, and a filter box 3; the rinsing assembly 2 is provided on one side of the alkaline washing tank 1, the rinsing assembly 2 includes a workbench 201, a through groove 2012 is provided in the middle of the workbench 201, and the filter box 3 is fixedly connected inside the through groove 2012. The alkaline washing tank 1 includes an outer shell 102 and an inner liner 103. The inner liner 103 is located inside the outer shell 102. An end cap 104 is fixedly connected to the top of the outer shell 102 and the inner liner 103. A water cavity 107 is opened between the outer shell 102 and the inner liner 103. A water injection pipe 1021 is fixedly connected to the upper part of the periphery of the outer shell 102. Two heating pipes 105 are arranged inside the water cavity 107. The heating pipes 105 are fixedly connected to the inner wall of the outer shell 102. Before performing the resin alkaline washing operation, water is added to the water chamber 107 through the water injection pipe 1021. After the water level reaches the upper part of the water chamber 107, the heating pipe 105 is activated to heat the water. When the water is heated to a certain temperature, resin and sodium hydroxide solution are added to the inner tank 103 through the feeding port 1041. The water in the water chamber 107 indirectly heats the sodium hydroxide solution and resin in the alkaline washing tank 1, thus accelerating the alkaline washing process.

[0029] Among them, such as Figure 2 As shown, a support leg 101 is fixedly connected to the bottom of the outer shell 102; the support leg 101 provides support for the alkaline washing tank 1.

[0030] Among them, such as Figure 2 As shown, a feeding port 1041 is provided at the top of the end cap 104 above the inner liner 103. A discharge pipe 1031 is fixedly connected to the middle of the bottom of the inner liner 103. A valve 1032 is fixedly connected to the bottom of the discharge pipe 1031. When performing alkaline washing, the resin to be treated is first added through the feeding port 1041, and then sodium hydroxide solution is added through the feeding port 1041 to soak the resin. After alkaline washing, the resin will float due to its low density and then enter the filter box 3 through the resin discharge pipe 106. After all the resin is discharged, the valve 1032 is opened, and the remaining waste liquid located at the bottom of the alkaline washing tank 1 can be discharged through the discharge pipe 1031.

[0031] Among them, such as Figure 2 As shown, a resin discharge pipe 106 is fixedly connected through the middle of the inner liner 103. The end of the resin discharge pipe 106 away from the inner liner 103 extends through the outer shell 102 and is fixedly connected through the filter box 3. After adding the resin to be treated to the inner liner 103 of the alkaline washing tank 1, sodium hydroxide solution is added to soak the resin and carry out the alkaline washing of the resin. Since the resin will float after alkaline washing, after the alkaline washing is completed, the resin enters the filter box 3 from the resin discharge pipe 106. The resin is rinsed and filtered in the filter box 3. After the rinsing and filtration are completed, the resin can be taken out for reuse.

[0032] Among them, such as Figure 3 As shown, support legs 2011 are fixedly connected at the four corners of the bottom of the workbench 201; support legs 2011 provide support for the rinsing assembly 2 and the filter box 3.

[0033] The working principle of this embodiment is as follows: Before performing the resin alkaline washing, water is added to the water chamber 107 through the water injection pipe 1021. After the water level reaches the upper part of the water chamber 107, the heating pipe 105 is activated to heat the water. When the water is heated to a certain temperature, the resin to be treated is first added through the feeding port 1041, and then sodium hydroxide solution is added through the feeding port 1041 to soak the resin and perform the resin alkaline washing. Since the resin will float after alkaline washing, after alkaline washing is completed, the resin enters the filter box 3 from the resin discharge pipe 106. After all the resin is discharged, the valve 1032 is opened, and the waste liquid can be discharged from the discharge pipe 1031. The resin entering the filter box 3 is rinsed and filtered in the filter box 3. After rinsing and filtering are completed, the resin can be taken out for reuse. Specific Implementation Example 2

[0034] Please see Figure 3-7 Based on the first specific embodiment, the filter box 3 is provided with a storage box 303 inside, and a square cone-shaped screening box 304 is fixedly connected to the bottom of the storage box 303. The rinsing assembly 2 also includes a hollow plate 204 located above the storage box 303, and a nozzle 2042 is fixedly connected to the bottom of the hollow plate 204. After alkaline washing, the resin enters the filter box 3 and then falls into the storage box 303 and the sieve box 304. The sieve box 304 has many small holes at the bottom. The solution that flows into the filter box 3 along with the resin flows out through the small holes. During the rinsing operation, the hollow plate 204 moves to a position above the resin and close to the resin. The rinsing liquid sprayed from the nozzle 2042 can directly impact the resin to prevent dust from the air from adhering to it. After rinsing the resin, the rinsing liquid flows out through the small holes. After rinsing is completed, the hollow plate 204 and the nozzle 2042 rise, and the storage box 303 and the sieve box 304 rise. The resin in the storage box 303 and the sieve box 304 rise together, making it easier to remove the post-processed resin.

[0035] Among them, such as Figure 3 , Figure 4 As shown, an inverted U-shaped support frame 203 is fixedly connected to the top of the workbench 201. The two vertical parts of the support frame 203 are located on both sides of the filter box 3. A cylinder 202 is fixedly connected to the center of the top of the support frame 203. The piston rod of the telescopic end of the cylinder 202 extends through the support frame 203 and is fixedly connected to the top of the hollow disk 204. The top of the hollow disk 204 is also fixedly connected to the liquid inlet pipe 2041. During the rinsing process, cylinder 202 is activated, and the piston rod at the telescopic end of cylinder 202 extends, causing the hollow disk 204 to descend. The solution enters the hollow disk 204 through the neutral solution inlet pipe 2041 and is finally sprayed out from the nozzle 2042, spraying towards the resin to perform resin rinsing. After rinsing, cylinder 202 is activated again, and the piston rod at the telescopic end of cylinder 202 retracts, causing the hollow disk 204 to rise, preventing the hollow disk 204 from obstructing the resin removal process.

[0036] Among them, such as Figure 3-7 As shown, a winch 302 is fixedly connected to the top of the workbench 201 on both sides of the filter box 3. The winch 302 is located between the filter box 3 and the support frame 203. Lifting ears 3031 are fixedly connected to both sides of the top of the storage box 303. Fixed pulleys 301 are fixedly connected to the top of both sides of the filter box 3. The wire rope of the winch 302 passes around the fixed pulley 301 and the hook lock at the end of the wire rope is movably hoisted and connected to the lifting ear 3031 on the same side. After the resin is rinsed, the hollow plate 204 is raised first, and then the winch 302 is started. The wire rope of the winch 302 pulls the lifting lug 3031 and the storage box 303 and screening box 304 fixedly connected to the lifting lug 3031 to rise, thereby lifting the resin inside the storage box 303 and screening box 304 for easy removal of the resin.

[0037] Among them, such as Figure 6 , Figure 7 As shown, a discharge pipe 305 is fixedly connected to the bottom of the filter box 3, and a pH meter 306 is fixedly connected to one side of the discharge pipe 305. The probe of the pH meter 306 extends into the discharge pipe 305. During the rinsing process, the waste liquid is discharged from the discharge pipe 305. The pH meter 306 can measure the acidity or alkalinity of the waste liquid. When the reading of the pH meter 306 is close to neutral, the rinsing can be stopped.

[0038] The working principle of this embodiment is as follows: After alkaline washing, the resin enters the filter box 3 and then falls into the storage box 303 and the screening box 304. The solution flowing into the filter box 3 along with the resin flows out through the small hole of the screening box 304 and the discharge pipe 305. The cylinder 202 is activated, and the piston rod at the telescopic end of the cylinder 202 extends, causing the hollow disk 204 to descend. The hollow disk 204 moves to a position above the resin and close to the resin. The neutral solution enters the hollow disk 204 from the inlet pipe 2041 and is finally sprayed out from the nozzle 2042 onto the resin to perform resin washing. After washing the resin, the washing solution passes through the screening box. The waste liquid flows out of the small hole of box 304 through the discharge pipe 305. The probe of pH meter 306 is inserted into the discharge pipe 305 to measure the acidity or alkalinity of the waste liquid. When the reading of pH meter 306 is close to neutral, the flushing is stopped, cylinder 202 is started, and the piston rod at the telescopic end of cylinder 202 retracts, driving the hollow disc 204 to rise. The winch 302 is started, and the wire rope of the winch 302 pulls the lifting lug 3031 and the storage box 303 and screening box 304 fixedly connected to the lifting lug 3031 to rise, thereby lifting the resin inside the storage box 303 and screening box 304 for easy removal of the resin.

[0039] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A post-treatment device for a high-exchange-rate macroporous weakly basic anion exchange resin, comprising an alkaline washing tank (1), a rinsing assembly (2), and a filter box (3); characterized in that: A rinsing assembly (2) is provided on one side of the alkaline washing tank (1). The rinsing assembly (2) includes a workbench (201). A through groove (2012) is provided in the middle of the workbench (201). A filter box (3) is fixedly connected inside the through groove (2012). The alkaline washing tank (1) includes an outer shell (102) and an inner liner (103). The inner liner (103) is located inside the outer shell (102). An end cap (104) is fixedly connected to the top of the outer shell (102) and the inner liner (103). A water cavity (107) is opened between the outer shell (102) and the inner liner (103). A water injection pipe (1021) is fixedly connected to the upper part of the periphery of the outer shell (102). Two heating pipes (105) are arranged inside the water cavity (107). The heating pipes (105) are fixedly connected to the inner wall of the outer shell (102). The filter box (3) is provided with a storage box (303) inside. A square cone-shaped screening box (304) is fixedly connected to the bottom of the storage box (303). The rinsing assembly (2) also includes a hollow disc (204) located above the storage box (303). A nozzle (2042) is fixedly connected to the bottom of the hollow disc (204).

2. The post-treatment device for a high-exchange macroporous weakly basic anion exchange resin according to claim 1, characterized in that: The bottom end of the outer shell (102) is fixedly connected to a support leg (101).

3. The post-treatment device for a high-exchange-rate macroporous weakly basic anion exchange resin according to claim 1, characterized in that: A feeding port (1041) is provided at the top of the end cap (104) located above the inner liner (103). A discharge pipe (1031) is fixedly connected to the middle of the bottom of the inner liner (103). A valve (1032) is fixedly connected to the bottom of the discharge pipe (1031).

4. The post-treatment device for a high-exchange macroporous weakly basic anion exchange resin according to claim 1, characterized in that: A resin discharge pipe (106) is fixedly connected to the middle of the periphery of the inner liner (103). The end of the resin discharge pipe (106) away from the inner liner (103) extends through the outer shell (102) and is fixedly connected to the filter box (3).

5. The post-treatment device for a high-exchange macroporous weakly basic anion exchange resin according to claim 1, characterized in that: The workbench (201) is fixedly connected to the four corners of its bottom end with two support legs (2011).

6. The post-treatment device for a high-exchange macroporous weakly basic anion exchange resin according to claim 1, characterized in that: The top of the workbench (201) is fixedly connected to an inverted U-shaped support frame (203). The two vertical parts of the support frame (203) are located on both sides of the filter box (3). A cylinder (202) is fixedly connected at the center of the top of the support frame (203). The piston rod of the telescopic end of the cylinder (202) extends through the support frame (203) and is fixedly connected to the top of the hollow disk (204). The top of the hollow disk (204) is also fixedly connected to an inlet pipe (2041).

7. The post-treatment device for a high-exchange-rate macroporous weakly basic anion exchange resin according to claim 6, characterized in that: A winch (302) is fixedly connected to the top of the workbench (201) on both sides of the filter box (3). The winch (302) is located between the filter box (3) and the support frame (203). Lifting ears (3031) are fixedly connected to both sides of the top of the storage box (303). Fixed pulleys (301) are fixedly connected to the top of both sides of the filter box (3). The wire rope of the winch (302) passes around the fixed pulley (301) and the hook lock at the end of the wire rope is movably hoisted and connected to the lifting ear (3031) on the same side.

8. The post-treatment device for a high-exchange-rate macroporous weakly basic anion exchange resin according to claim 7, characterized in that: The bottom of the filter box (3) is fixedly connected to the discharge pipe 2 (305), and a pH detector (306) is fixedly connected to one side of the discharge pipe 2 (305).

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