Activated carbon filtering device for post-treatment of organosilicon surfactant

Abstract

A tank cover is arranged on the upper surface of an outer tank body, a feeding pipe is arranged on the lower surface of the tank cover, an inner tank body is further arranged on the lower surface of the tank cover, the inner tank body is coaxially arranged outside the feeding pipe, a first sieve plate is arranged in the inner tank body, and a second sieve plate is arranged in the inner tank body. A plurality of overflow grooves are formed in the side wall of the inner tank body and located above the first sieve plate, a second sieve plate is arranged on the periphery of the inner tank body, a first activated carbon layer is filled in the inner tank body and located below the first sieve plate, and a second activated carbon layer is arranged in the outer tank body and between the outer tank body and the inner tank body. The organic silicon surface active agent can be adsorbed and filtered twice through the two activated carbon layers, the adsorption and filtering effects on impurities in the organic silicon surface active agent are greatly improved, more space is saved through the structure, the sectional area of a flowing path is smaller, and therefore the utilization rate of activated carbon is higher.

Description

Technical Field

[0001] This utility model relates to the field of chemistry, and in particular to activated carbon filtration equipment, specifically an activated carbon filtration device for post-treatment of organosilicon surfactants. Background Technology

[0002] Organosilicon surfactants contain both hydrophilic and hydrophobic parts in their molecules, enabling them to alter the surface tension of liquids or the interfacial tension between two phases. They have wide applications in pharmaceuticals, medical devices, chemicals, plastics, coatings, emulsions, inks, leather, textiles, building materials, electrical insulation, and cosmetics. In the chemical field, organosilicon surfactants serve as key raw materials for the synthesis of resins, synthetic rubbers, lubricants, and additives. They are also indispensable in the synthesis of nanomaterials.

[0003] After being processed by polycondensation or esterification, organosilicon surfactants generally undergo post-treatment. First, the pH value is neutralized, followed by decolorization and filtration. Finally, solvents or additives are added to adjust the product's properties. The decolorization and filtration processes are accomplished through adsorption and filtration using activated carbon. Current activated carbon filtration devices for organosilicon surfactant post-treatment employ a tank structure filled with activated carbon. In existing technologies, the organosilicon surfactant enters the tank, resulting in single-layer filtration with limited effectiveness. Furthermore, due to the large cross-sectional area of ​​some tank sections, the organosilicon surfactant cannot reach certain areas of the activated carbon, leading to low activated carbon utilization. Therefore, an improved technology is urgently needed to address these problems in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide an activated carbon filtration device for the post-treatment of organosilicon surfactants, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an activated carbon filtration device for post-treatment of organosilicon surfactants, comprising an outer tank, an inner tank, a feed pipe, and a tank cover. The bottom of the outer tank has a discharge port, and the upper surface of the outer tank has a tank cover. A feed port is located at the center of the upper surface of the tank cover, and a feed pipe is located on the lower surface of the tank cover, communicating with the feed port. An inner tank is also located on the lower surface of the tank cover, coaxially disposed outside the feed pipe and coaxially disposed inside the outer tank. A perforated plate is provided at the bottom of the pipe. A boss is provided on the upper part of the inner tank along the circumference. A first screen plate is provided inside the inner tank. The outer periphery of the first screen plate is supported on the upper surface of the boss and fastened with bolts. The feed pipe passes through the first screen plate. Several overflow grooves are opened on the side wall of the inner tank above the first screen plate. A second screen plate is provided on the outer periphery of the inner tank. A first activated carbon layer is filled inside the inner tank below the first screen plate. A second activated carbon layer is provided between the outer tank and the inner tank. The second activated carbon layer is supported on the second screen plate.

[0006] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model has several support legs at the bottom of the outer tank.

[0007] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model has an activated carbon inlet at the upper end of the side wall of the outer tank and an activated carbon outlet at the lower end of the side wall of the outer tank, and both the activated carbon inlet and the activated carbon outlet are provided with covers.

[0008] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model includes an inner annular thickened platform, a middle annular thickened platform and an outer annular thickened platform on the lower surface of the can lid. The outer annular thickened platform has a groove on its outer side and a first sealing ring is provided in the groove.

[0009] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model is wherein the top end of the feed pipe is connected to the inner annular thickened platform via a flange.

[0010] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model is wherein the top of the inner tank is connected to the intermediate annular thickened platform via a flange.

[0011] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model includes a first sieve plate with several through grooves and a first filter screen disposed within the through grooves. A through hole is provided at the center of the first sieve plate, and the feed pipe passes through the through hole.

[0012] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model includes a second sieve plate with several through grooves and a second filter screen disposed within the through grooves, and a groove with a second sealing ring disposed within the groove.

[0013] Preferably, the activated carbon filtration device for post-treatment of organosilicon surfactants provided by this utility model has a plurality of reinforcing plates disposed on the lower surface of the second sieve plate and between it and the inner tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] An inner tank is set inside the outer tank, and the feed pipe extends into the inner tank. The inner tank is filled with a first activated carbon layer, and the space between the outer pipe and the inner tank is filled with a second activated carbon layer. The two activated carbon layers can adsorb and filter the organosilicon surfactant twice, which greatly improves the adsorption and filtration effect of impurities in the organosilicon surfactant. Moreover, this structure saves more space. The flow direction in the inner tank is from bottom to top, and the flow direction in the outer tank is from top to bottom. The flow path cross-sectional area is smaller, which makes the utilization rate of activated carbon higher. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the can lid;

[0018] Figure 3 This is a schematic diagram of the can lid's structure viewed from below.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the first sieve plate;

[0020] Figure 5 This is a top view of the first sieve plate.

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the second sieve plate;

[0022] Figure 7 This is a top view of the second sieve plate.

[0023] In the diagram: 1. Outer tank; 2. Inner tank; 3. Feed pipe; 4. Tank cover; 5. Discharge port; 6. Feed port; 7. Perforated plate; 8. Boss; 9. First sieve plate; 10. Overflow trough; 11. Second sieve plate; 12. First activated carbon layer; 13. Second activated carbon layer; 14. Support leg; 15. Activated carbon inlet; 16. Activated carbon outlet; 17. Inner annular thickened platform; 18. Middle annular thickened platform; 19. Outer annular thickened platform; 20. First sealing ring; 21. First filter screen; 22. Through hole; 23. Second filter screen; 24. Second sealing ring; 25. Reinforcing plate. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Please see Figure 1-7This utility model provides a technical solution: an activated carbon filtration device for post-treatment of organosilicon surfactants, comprising an outer tank 1, an inner tank 2, a feed pipe 3, and a tank cover 4. The outer tank 1 has a discharge port 5 at its bottom, and a tank cover 4 on its upper surface. A feed port 6 is located at the center of the upper surface of the tank cover 4. The feed pipe 3 is located on the lower surface of the tank cover 4, and the feed pipe 3 communicates with the feed port 6. The inner tank 2 is also located on the lower surface of the tank cover 4. The lower surface of the tank cover 4 has an inner annular thickened platform 17, a middle annular thickened platform 18, and an outer annular thickened platform 19. A groove is formed on the outer side of the outer annular thickened platform 19, and a first sealing ring 20 is located within the groove. The inner annular thickened platform 17 and the middle annular thickened platform 18... To facilitate the installation of the feed pipe 3 and the inner tank 2, the first sealing ring 20 is installed via the outer annular thickened platform 19, ensuring the sealing of the connection between the tank cover 4 and the outer tank 1. The top of the feed pipe 3 is connected to the inner annular thickened platform 17 via a flange, thus connecting the feed pipe 3 to the tank cover 4. The top of the inner tank 2 is connected to the middle annular thickened platform 18 via a flange, thus connecting the inner tank 2 to the tank cover 4. The inner tank 2 is coaxially positioned outside the feed pipe 3 and coaxially positioned inside the outer tank 1. The bottom of the feed pipe 3 is provided with an orifice plate 7. The upper part of the inner tank 2 is provided with a boss 8 along the circumferential direction. The inner tank 2 is provided with a first screen plate 9, and the outer periphery of the first screen plate 9 is supported on the upper surface of the boss 8 and fastened with bolts. The inner tank 2 is filled with a first activated carbon layer 12 below the first sieve plate 9. A feed pipe 3 passes through the first sieve plate 9. The first sieve plate 9 has several through slots, and a first filter screen 21 is installed within each slot. A through hole 22 is located at the center of the first sieve plate 9, through which the feed pipe 3 passes. The first filter screen 21 prevents the activated carbon in the first activated carbon layer 12 from overflowing from the first sieve plate 9 into the overflow trough 10, and ensures that the organosilicon surfactant can pass smoothly through the first sieve plate 9. Several overflow troughs 10 are located on the side wall of the inner tank 2 above the first sieve plate 9. A second sieve plate 11 is installed around the outer perimeter of the inner tank 2. A second activated carbon layer 13 is installed between the outer tank 1 and the inner tank 2, and the second activated carbon layer 13 is supported by the second sieve plate 1. Above the inner tank 1, the second sieve plate 11 has several through slots and a second filter screen 23 is installed in the through slots. The outer periphery of the second sieve plate 11 has a groove and a second sealing ring 24 is installed in the groove to prevent the activated carbon of the second activated carbon layer 13 from falling from the second sieve plate 11 to the bottom of the outer tank 1, and to ensure that the organosilicon surfactant can pass smoothly through the second sieve plate 11. The second sealing ring 24 ensures the sealing between the outer periphery of the second sieve plate 11 and the outer tank 1. Several reinforcing plates 25 are installed between the lower surface of the second sieve plate 11 and the inner tank 2 to ensure the structural strength and support of the second sieve plate 11. Several supporting legs 14 are installed at the bottom of the outer tank 1 to achieve overall elevation and support. An activated carbon inlet 15 is installed at the upper end of the side wall of the outer tank 1.An activated carbon outlet 16 is provided at the lower end of the side wall of the outer tank 1. Both the activated carbon inlet 15 and the activated carbon outlet 16 are equipped with covers. Activated carbon is added to the interior of the outer tank 1 through the activated carbon inlet 15, and the activated carbon is discharged from the interior of the outer tank 1 through the activated carbon outlet 16.

[0027] Installation method and operating principle: First, install the perforated plate 7 at the bottom of the feed pipe 3 with bolts. Then, connect the feed pipe 3 to the inner annular thickened platform 17 on the lower surface of the can cover 4 with flanges and bolts. Place some activated carbon into the inner can 2, and place the first screen plate 9 into the inner can 2 and support it on the boss 8. At the same time, use bolts to fasten the first screen plate 9 to the boss 8. Pass the feed pipe 3 through the through hole 22 at the center of the first screen plate 9, and fasten the top of the inner can 2 to the middle annular thickened platform 18 on the lower surface of the can cover 4 with flanges and bolts. Then, place the inner can 2 into the outer can 1. At this time, the second sealing ring 24 around the second screen plate 11 is in close contact with the inner wall of the outer can 1 until the can cover 4 is pressed onto the top of the outer can 1. At this time, the first sealing ring 20 around the annular thickened platform 19 on the lower surface of the can cover 4 is in close contact with the inner wall of the outer can 1. At the same time, use bolts to connect the can cover 4 to the top of the outer can 1, completing the installation. Finally, a portion of the activated carbon is fed from the activated carbon inlet 15 between the outer tank 1 and the inner tank 2, and supported on the second sieve plate 11. During use, the pH-adjusted silicone surfactant is pumped from the inlet 6 into the feed pipe 3, then through the perforated plate 7 into the inner tank 2. After adsorption and filtration by the first activated carbon layer 12, it passes through the first filter screen 21 of the first sieve plate 9 and overflows from the overflow trough 10 at the top of the inner tank 2 into the outer tank 1. Then, by gravity, it passes through the second activated carbon layer 13, undergoes a second adsorption and filtration by the second activated carbon layer 13, and finally flows through the second filter screen 23 of the second sieve plate 11 into the bottom of the outer tank 1, and is discharged from the outlet 5. The outer tank 1, inner tank 2, feed pipe 3, and tank cover 4 are all made of stainless steel. This utility model has a reasonable structure. An inner tank 2 is set inside the outer tank 1, and the feed pipe 3 extends into the inner tank 2. The inner tank 2 is also filled with a first activated carbon layer 12, and the space between the outer pipe and the inner tank 2 is filled with a second activated carbon layer 13. Through the two activated carbon layers, the organosilicon surfactant can be adsorbed and filtered twice, which greatly improves the adsorption and filtration effect of impurities in organosilicon surfactant. Moreover, this structure saves more space. The flow direction in the inner tank 2 is from bottom to top, and the flow direction in the outer tank 1 is from top to bottom. The cross-sectional area of ​​the flow path is smaller, which makes the utilization rate of activated carbon higher.

[0028] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0029] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An activated carbon filtration device for post-treatment of organosilicon surfactants, characterized in that: The container includes an outer tank (1), an inner tank (2), a feed pipe (3), and a lid (4). The outer tank (1) has a discharge port (5) at its bottom. The outer tank (1) has a lid (4) on its upper surface. A feed port (6) is located at the center of the upper surface of the lid (4). A feed pipe (3) is located on the lower surface of the lid (4), and the feed pipe (3) is connected to the feed port (6). An inner tank (2) is also located on the lower surface of the lid (4). The inner tank (2) is coaxially positioned outside the feed pipe (3) and coaxially positioned inside the outer tank (1). A perforated plate (7) is located at the bottom of the feed pipe (3). A perforated plate (7) is located on the upper part of the inner tank (2) along the circumferential direction. The inner tank (2) is provided with a first screen plate (9) inside the boss (8). The outer periphery of the first screen plate (9) is supported on the upper surface of the boss (8) and fastened by bolts. The feed pipe (3) passes through the first screen plate (9). Several overflow grooves (10) are opened on the side wall of the inner tank (2) above the first screen plate (9). The outer periphery of the inner tank (2) is provided with a second screen plate (11). The inner tank (2) is filled with a first activated carbon layer (12) below the first screen plate (9). The outer tank (1) is provided with a second activated carbon layer (13) between it and the inner tank (2). The second activated carbon layer (13) is supported on the second screen plate (11).

2. The activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: The bottom of the outer tank (1) is provided with several support legs (14).

3. The activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: An activated carbon inlet (15) is provided at the upper end of the side wall of the outer tank (1), and an activated carbon outlet (16) is provided at the lower end of the side wall of the outer tank (1). Both the activated carbon inlet (15) and the activated carbon outlet (16) are provided with covers.

4. The activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: The lower surface of the can lid (4) is provided with an inner annular thickened platform (17), a middle annular thickened platform (18) and an outer annular thickened platform (19). The outer annular thickened platform (19) has a groove on its outer side and a first sealing ring (20) is provided in the groove.

5. The activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: The top of the feed pipe (3) is connected to the inner annular thickened platform (17) via a flange.

6. The activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: The top of the inner tank (2) is connected to the middle annular thickened platform (18) via a flange.

7. The activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: The first sieve plate (9) has several through slots and a first filter screen (21) is provided in the through slots. A through hole (22) is provided at the center of the first sieve plate (9), and the feed pipe (3) passes through the through hole (22).

8. An activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: The second sieve plate (11) has several through slots and a second filter screen (23) is provided in the through slots. The second sieve plate (11) has a groove on its outer periphery and a second sealing ring (24) is provided in the groove.

9. An activated carbon filtration device for post-treatment of organosilicon surfactants according to claim 1, characterized in that: Several reinforcing plates (25) are provided on the lower surface of the second sieve plate (11) and between it and the inner tank (2).

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