A solution recovery device for acrylamide production

Abstract

This utility model relates to the field of acrylamide recovery technology and discloses a solution recovery device for acrylamide production. It includes an anion exchange resin column, with an internal thread two on the top inner side of the anion exchange resin column. A column rod is threaded to the outer wall of the internal thread two. A filter element is disposed at the bottom inner side of the column rod. A filter plate is engaged with the upper middle part of the inner side of the column rod, and a filter plate two is engaged with the top inner side of the column rod. An external thread one is formed on the top outer wall of the anion exchange resin column. In this utility model, by first placing a cation exchange resin column inside the anion exchange resin column, and then connecting the circular column to the external thread one, the acrylamide solution can be effectively filtered during recovery, preventing impurities from affecting subsequent normal use. This also facilitates the disassembly and installation of the filter structure, improving convenience.

Description

Technical Field

[0001] This utility model relates to the field of acrylamide recovery technology, and in particular to a solution recovery device for acrylamide production. Background Technology

[0002] With increasing environmental awareness, the chemical industry has become increasingly stringent in its requirements for environmental indicators during production processes. Only by adopting advanced acrylamide solution recovery devices can enterprises ensure that their production activities comply with environmental standards. Acrylamide production typically involves a variety of complex chemical reactions and processes, such as chemical synthesis and bio-enzymatic methods. These processes generate a large amount of solutions containing acrylamide. These solutions have complex compositions and may contain not only acrylamide but also unreacted raw materials, byproducts, catalysts, and various impurities.

[0003] Acrylamide is an important organic chemical raw material, and its polymers are widely used in water treatment, oil extraction, papermaking, and textiles. The production process of acrylamide involves a variety of chemical reactions and process steps, and the treatment and recovery of the solution is a key link. Acrylamide solutions in the production process usually contain unreacted raw materials, intermediate products, and finished products. Direct discharge will cause resource waste and increase production costs. However, existing acrylamide recovery devices lack the necessary filtration effect, which allows these impurities to enter the recovery solution, reducing the purity of the solution and affecting the quality and performance of acrylamide in subsequent production. Therefore, they are inconvenient for operators to use in daily operations and reduce the efficiency of the recovery device. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a solution recovery device for acrylamide production, aiming to improve the problem that existing acrylamide recovery devices lack necessary filtration effects during use, causing impurities to enter the recovery solution, reducing solution purity, and affecting the quality of acrylamide in subsequent production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a solution recovery device for acrylamide production, comprising an anion exchange resin column, wherein the top inner side of the anion exchange resin column is provided with an internal thread II, the outer wall of the internal thread II is threadedly connected to a column rod, a filter element is provided at the bottom inner side of the column rod, a filter plate I is engaged with the upper middle part of the inner side of the column rod, a filter plate II is engaged with the top inner side of the column rod, an external thread I is provided at the top outer wall of the anion exchange resin column, a circular column is threadedly connected to the outer wall of the external thread I, a feed pipe is connected to the middle of the top of the circular column, a cation exchange resin column is provided at the bottom inner side of the anion exchange resin column, and a backflushing mechanism is provided at the bottom outer wall of the anion exchange resin column for backflushing the inner side of the anion exchange resin column.

[0006] As a further description of the above technical solution:

[0007] The backflushing mechanism includes a connecting block and a water tank. The inner side of the connecting block is connected to the bottom of the outer wall of the anion exchange resin column. A hollow threaded rod is threadedly connected to the inner side of the connecting block. A nozzle is connected to the top of the hollow threaded rod, and a pipe is connected to the bottom of the nozzle. A water pump is fixedly connected to the left side of the inside of the water tank. The output end of the water pump is connected to the other end of the connecting block.

[0008] As a further description of the above technical solution:

[0009] An L-shaped pipe is connected to the middle right side of the water tank, and a circular plug is connected to the top of the L-shaped pipe.

[0010] As a further description of the above technical solution:

[0011] A handle is fixedly connected to the top of the outer wall of the water tank, and support legs are fixedly connected to the bottom of the outer wall of the water tank.

[0012] As a further description of the above technical solution:

[0013] An electromagnetic valve is connected to the middle of the outer wall of the pipe, and an L-shaped plate is fixedly connected to the middle of the front side of the outer wall of the water tank.

[0014] As a further description of the above technical solution:

[0015] The outer wall of each anion exchange resin column is connected to a hollow rod on the front side, and the inner front side of the hollow rod is threaded with a threaded plug.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to the left side of the outer wall of the anion exchange resin column, and an internal thread is provided on the top of the inner side of the feeding tube. A threaded plug is connected to the inner thread of the internal thread.

[0018] As a further description of the above technical solution:

[0019] A controller is fixedly connected to the center of the front side of the L-shaped plate, and multiple controllers are electrically connected to solenoid valves.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the cation exchange resin column is first placed inside the anion exchange resin column. Then, the column rod is picked up and threaded into the inner thread two of the anion exchange resin column. The filter element is then placed inside the column rod, and the circular column is picked up and connected to the outer thread one. The recovered solution is then poured into the anion exchange resin column through the inside of the feed pipe. Therefore, the acrylamide solution can be effectively recovered and filtered to avoid impurities affecting subsequent normal use. At the same time, it is convenient to disassemble and install the filter structure, thus improving convenience.

[0022] 2. In this utility model, by connecting the bottom of the anion exchange resin column to the inner side of the connecting block, and then connecting the hollow threaded rod to the inner side of the connecting block, the water pump is started to draw water from the inside of the water tank, and then backflush it to the inside of the anion exchange resin column through the pipe and nozzle, thereby cleaning the impurities adsorbed on the anion exchange resin column and the cation exchange resin column, improving the filtration effect and meeting the needs of daily use. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a solution recovery device for acrylamide production proposed in this utility model;

[0024] Figure 2 This is a structural exploded view of a solution recovery device for acrylamide production proposed in this utility model;

[0025] Figure 3 This is an exploded view of a solution recovery device for acrylamide production proposed in this utility model;

[0026] Figure 4 This is a structurally disassembled view of a solution recovery device for acrylamide production proposed in this utility model;

[0027] Figure 5 This is a structurally disassembled schematic diagram of a solution recovery device for acrylamide production proposed in this utility model;

[0028] Figure 6 This is an exploded view of a solution recovery device for acrylamide production proposed in this utility model.

[0029] Legend:

[0030] 1. Anion exchange resin column; 2. Backflush mechanism; 201. Water tank; 202. Handle 1; 203. Circular plug; 204. L-shaped tube; 205. Pipeline; 206. Connecting block; 207. Hollow threaded rod; 208. Nozzle; 209. Water pump; 3. Circular column; 4. Feeding pipe; 5. Controller; 6. Support leg; 7. Solenoid valve; 8. Handle 2; 9. External thread 1; 10. Internal thread 1; 11. Threaded plug 1; 12. Column rod; 13. Hollow rod; 14. Threaded plug 2; 15. Filter plate 1; 16. Filter plate 2; 17. Filter element; 18. Internal thread 2; 19. L-shaped plate; 20. Cation exchange resin column. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 2 - Appendix Figure 4 An embodiment of this utility model provides a solution recovery device for acrylamide production, comprising an anion exchange resin column 1, an internal thread 18 on the top inner side of the anion exchange resin column 1, a column rod 12 threaded to the outer wall of the internal thread 18, a filter element 17 at the bottom inner side of the column rod 12, a filter plate 15 engaged at the upper middle part of the inner side of the column rod 12, a filter plate 16 engaged at the top inner side of the column rod 12, an external thread 9 on the top outer wall of the anion exchange resin column 1, a circular column 3 threaded to the outer wall of the external thread 9, a feed pipe 4 connected to the top middle of the circular column 3, a cation exchange resin column 20 at the bottom inner side of the anion exchange resin column 1, a backwashing mechanism 2 at the bottom outer wall of the anion exchange resin column 1 for backwashing the inner side of the anion exchange resin column 1, a handle 202 fixedly connected to the top outer wall of a water tank 201, and support legs 6 fixedly connected to the bottom outer wall of the water tank 201.

[0033] Specifically, a filter plate 15 is engaged with the upper inner part of the column rod 12 above the filter element 17. The diameter of the filter plate 15 matches that of the filter element 17. A filter plate 16 is engaged with the top inner part of the column rod 12. The external thread 9 on the top of the outer wall of the anion exchange resin column 1 facilitates the connection of the circular column 3. The external thread 9 connects to the threaded connection of the inner wall of the circular column 3, forming a complete sealed structure. The feed pipe 4, connected to the top center of the circular column 3, adds the treatment liquid into the device to achieve anion removal. The liquid after anion exchange continues to flow downwards and enters the column rod 12. Inside the column rod 12, the liquid passes through multiple layers of filtration, including the filter element 17, filter plate 15, and filter plate 16, to further remove suspended solids.

[0034] Please see the appendix Figure 4 - Appendix Figure 6 The backflushing mechanism 2 includes a connecting block 206 and a water tank 201. The inner side of the connecting block 206 is connected to the bottom of the outer wall of the anion exchange resin column 1. A hollow threaded rod 207 is threadedly connected to the inner side of the connecting block 206. A nozzle 208 is connected to the top of the hollow threaded rod 207. A pipe 205 is connected to the bottom of the nozzle 208. A water pump 209 is fixedly connected to the left side of the inside of the water tank 201. The output end of the water pump 209 is connected to the other end of the connecting block 206. An L-shaped pipe 204 is connected to the middle right side of the water tank 201. A circular plug 203 is connected to the top of the L-shaped pipe 204.

[0035] Specifically, the connecting block 206 serves as the entire cleaning mechanism, with its inner side tightly connected to the bottom of the outer wall of the anion exchange resin column 1, ensuring that the cleaning fluid can flow smoothly from the connecting block 206 into the resin column. The hollow threaded rod 207 not only serves as a connector, but its hollow internal structure also provides space for the flow of the cleaning fluid, ensuring that the cleaning fluid can be smoothly delivered from the connecting block 206 to the nozzle 208. The top of the hollow threaded rod 207 is connected to the nozzle 208. The water tank 201 serves as a storage container for the cleaning fluid, and a water pump 209 is fixedly connected to its left side. The water pump 209 uses its strong suction capacity to extract the cleaning fluid from the water tank 201 and provide it with sufficient pressure.

[0036] Please see the appendix Figure 1 - Appendix Figure 3A solenoid valve 7 is connected to the middle of the outer wall of pipe 205. An L-shaped plate 19 is fixedly connected to the middle of the front side of the outer wall of water tank 201. A handle 8 is fixedly connected to the left side of the outer wall of anion exchange resin column 1. An internal thread 10 is opened on the top of the inner side of the feeding pipe 4. A threaded plug 11 is connected to the inner thread of the internal thread 10. Hollow rods 13 are connected to the front side of the outer wall of anion exchange resin column 1. A threaded plug 14 is connected to the front thread of the hollow rod 13. A controller 5 is fixedly connected to the middle of the front side of L-shaped plate 19. Multiple controllers 5 and solenoid valve 7 are electrically connected.

[0037] Specifically, the water tank 201 serves as the exchange treatment cleaning fluid, and the L-shaped plate 19 is fixedly connected to the middle of the front side of the outer wall of the water tank 201 to prevent the water tank 201 from shifting due to long-term exposure, further limiting the horizontal shaking of the water tank 201 and ensuring that the water tank 201 remains stable in complex working environments. The presence of the L-shaped plate 19 also greatly facilitates the installation and maintenance of the water tank 201. The feed pipe 4 is used to add treatment fluid into the anion exchange resin column 1.

[0038] Working principle: When acrylamide solution needs to be recovered, firstly, the cation exchange resin column 20 is placed inside the anion exchange resin column 1. Then, the column rod 12 is threaded and connected to the internal thread 18 on the inner side of the anion exchange resin column 1. Next, the filter element 17 is placed inside the column rod 12, and the filter plates 15 and 16 are engaged with the top of the column rod 12. Then, the circular column 3 is connected to the external thread 9. The recovered solution is then poured into the anion exchange resin column 1 through the inside of the feed pipe 4. First, the filter plates 15 and 16 are used to filter larger particles. Then, the filter element 17 and column rod 12 are used for secondary filtration. Finally, the solution is processed by the cation exchange resin column 20. Therefore, effective filtration is achieved during the recovery of acrylamide solution, avoiding impurities that may affect subsequent normal use. At the same time, the filter structure is easy to disassemble and install, improving convenience.

[0039] Next, connect the bottom of the anion exchange resin column 1 to the inside of the connecting block 206, then connect the hollow threaded rod 207 to the inside of the connecting block 206. At this time, start the water pump 209 to extract the water from the inside of the water tank 201, and then backflush it to the inside of the anion exchange resin column 1 through the pipe 205 and the nozzle 208. This cleans the impurities adsorbed on the anion exchange resin column 1 and the cation exchange resin column 20, improves the filtration effect, and meets the needs of daily use.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solution recovery device for acrylamide production, comprising an anion exchange resin column (1), characterized in that: The anion exchange resin column (1) has an internal thread 2 (18) at the top of its inner side. The outer wall of the internal thread 2 (18) is threaded with a column rod (12). The bottom of the inner side of the column rod (12) is provided with a filter element (17). The upper middle part of the inner side of the column rod (12) is engaged with a filter plate 1 (15). The top of the inner side of the column rod (12) is engaged with a filter plate 2 (16). The top of the outer wall of the anion exchange resin column (1) has an external thread 1 (9). The outer wall of the external thread 1 (9) is threaded with a circular column (3). The top middle of the circular column (3) is connected to a feed pipe (4). The bottom of the inner side of the anion exchange resin column (1) is provided with a cation exchange resin column (20). The bottom of the outer wall of the anion exchange resin column (1) is provided with a backwashing mechanism (2). The backwashing mechanism (2) is used to backwash the inner side of the anion exchange resin column (1).

2. The solution recovery device for acrylamide production according to claim 1, characterized in that: The backflushing mechanism (2) includes a connecting block (206) and a water tank (201). The inner side of the connecting block (206) is connected to the bottom of the outer wall of the anion exchange resin column (1). A hollow threaded rod (207) is threadedly connected to the inner side of the connecting block (206). A nozzle (208) is connected to the top of the hollow threaded rod (207). A pipe (205) is connected to the bottom of the nozzle (208). A water pump (209) is fixedly connected to the left side of the inside of the water tank (201). The output end of the water pump (209) is connected to the other end of the connecting block (206).

3. The acrylamide production solution recovery device according to claim 2, characterized in that: An L-shaped pipe (204) is connected to the middle right side of the water tank (201), and a circular plug (203) is connected to the top of the L-shaped pipe (204).

4. The solution recovery device for acrylamide production according to claim 2, characterized in that: A handle (202) is fixedly connected to the top of the outer wall of the water tank (201), and a support leg (6) is fixedly connected to the bottom of the outer wall of the water tank (201).

5. A solution recovery device for acrylamide production according to claim 2, characterized in that: The outer wall of the pipe (205) is connected to a solenoid valve (7), and the front side of the outer wall of the water tank (201) is fixedly connected to an L-shaped plate (19).

6. The solution recovery device for acrylamide production according to claim 1, characterized in that: The outer wall of the anion exchange resin column (1) is connected to a hollow rod (13), and the inner front side of the hollow rod (13) is threadedly connected to a threaded plug (14).

7. The solution recovery device for acrylamide production according to claim 1, characterized in that: The outer wall of the anion exchange resin column (1) is fixedly connected to a handle two (8), and the inner top of the feed tube (4) is provided with an internal thread one (10), and the inner thread one (10) is connected to a thread plug one (11).

8. A solution recovery device for acrylamide production according to claim 5, characterized in that: A controller (5) is fixedly connected to the middle of the front side of the L-shaped plate (19), and multiple controllers (5) are electrically connected to solenoid valves (7).

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