A new type of cylindrical activated carbon regeneration tank

Abstract

This utility model discloses a novel columnar activated carbon regeneration tank, comprising a tank body with an upper end cap at the top and a lower end cap with a 60° conical structure at the bottom; a first steam or nitrogen inlet and a second steam or nitrogen inlet on the tank body; two sets of spray pipe assemblies arranged inside the tank body, respectively connected to the first and second steam or nitrogen inlets; a steam outlet at the bottom of the tank body, and a collection pipe assembly connected to the steam outlet inside the lower end cap. This utility model, by replacing the original water cap fixing plate inside the regeneration tank with a collection pipe assembly, can fully utilize the space of the lower end cap, reduce the overall height of the regeneration tank, and increase the activated carbon processing capacity. The collection pipe assembly has a simple structure, is easy to install and maintain, and can reduce manufacturing and processing costs. The 60° conical structure of the lower end cap allows the activated carbon to be discharged quickly and automatically through the activated carbon outlet at the bottom, improving unloading efficiency.

Description

Technical Field

[0001] This utility model relates to the field of activated carbon regeneration equipment, specifically a novel columnar activated carbon regeneration tank. Background Technology

[0002] Columnar activated carbon is widely used in waste gas treatment due to its excellent adsorption performance. However, the adsorption capacity of columnar activated carbon has a certain saturation point. During use, to restore the adsorption capacity of columnar activated carbon, it needs to undergo activation and regeneration (desorption) treatment to remove adsorbed pollutants, thus achieving reuse. A common method is to treat the columnar activated carbon with low-temperature steam. In this process, the columnar activated carbon is thoroughly mixed with low-temperature steam, which is then injected into the activated carbon through a nozzle to restore its adsorption effect.

[0003] Chinese invention patent CN116328747A discloses an activated carbon thermal cycle regeneration system and its process. The regeneration tank has a water cap fixing plate at the bottom of the tank body. Activated carbon accumulates on the water cap fixing plate, which results in the space at the bottom of the tank body of the regeneration tank not being effectively utilized.

[0004] Furthermore, current low-temperature steam regeneration methods have limitations in restoring the iodine value and carbon tetrahydrogenate value of activated carbon, resulting in a continuous decrease in the adsorption capacity of activated carbon after each regeneration. In addition, the unloading operation of activated carbon after regeneration is cumbersome and complex, leading to high labor costs and affecting regeneration efficiency. Utility Model Content

[0005] To address the aforementioned issues, this invention provides a novel columnar activated carbon regeneration tank. This regeneration tank utilizes a collection pipe assembly instead of a water cap fixing plate, making full use of the space in the lower end cap. The 60° conical lower end cap allows for rapid and automatic discharge of activated carbon, improving unloading efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a columnar activated carbon regeneration tank, including a tank body, an upper end cap at the top of the tank body, and a lower end cap at the bottom of the tank body. An activated carbon inlet is located at the center of the upper end cap, and the lower end cap has a 60° conical structure with an activated carbon outlet at the center of its bottom. The tank body has a first steam or nitrogen inlet and a second steam or nitrogen inlet. Two sets of spray nozzle assemblies are arranged inside the tank body, respectively connected to the first and second steam or nitrogen inlets. A steam outlet is located at the bottom of the tank body, and a collection pipe assembly connected to the steam outlet is located in the lower part of the tank body and inside the lower end cap. The collection pipe assembly includes a primary collection pipe, a secondary collection pipe, a tertiary collection pipe, collection branch pipes, and a filter cap. Multiple secondary collection pipes are symmetrically arranged on both sides of the primary collection pipe. Multiple tertiary collection pipes are arranged along the length of each secondary collection pipe at its bottom. Multiple downwardly inclined collection branch pipes are arranged along the circumference of each tertiary collection pipe at its lower part. A filter cap is located at the lower end of each collection branch pipe, and a screen is provided on the filter cap.

[0008] Furthermore, the primary collection pipe has a first flange at one end, which is connected to the steam outlet on the activated carbon regeneration tank, and a first cover plate at the other end. Several second flanges are symmetrically arranged on both sides of the primary collection pipe. The secondary collection pipe has a third flange at one end and a cap at the other end, and the third flange is connected to the second flange. The tertiary collection pipe has a fourth flange at the top, which is installed at the bottom of the secondary collection pipe. The bottom of the tertiary collection pipe has a second cover plate. Each tertiary collection pipe has 2 to 4 collection branch pipes evenly arranged at the bottom.

[0009] Furthermore, the tank body is provided with a first carbon layer temperature detection port and a second carbon layer temperature detection port below the first steam or nitrogen inlet and the second steam or nitrogen inlet, respectively, and the lower end cap is provided with a third carbon layer temperature detection port.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The columnar activated carbon regeneration tank provided by this utility model replaces the original water cap fixing plate inside the regeneration tank with a collection pipe assembly. This fully utilizes the space of the lower end cap, reduces the overall height of the regeneration tank, and increases the activated carbon processing capacity. The collection pipe assembly has a simple structure, is easy to install and maintain, and reduces manufacturing and processing costs. The screen effectively prevents activated carbon from entering the steam circulation pipeline. The lower end cap adopts a 60° conical structure, allowing activated carbon to be quickly and automatically discharged through the activated carbon outlet at the bottom, improving unloading efficiency. This utility model not only ensures that the original process meets the requirements for activated carbon regeneration, and the iodine value after regeneration is not reduced, but also saves material and labor costs and facilitates subsequent installation and maintenance. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] In the attached diagram:

[0014] Figure 1 This is a schematic diagram of the overall structure of the columnar activated carbon regeneration tank provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the collection tube assembly provided by this utility model, wherein (a) is a schematic diagram of the first-stage collection tube, (b) is a schematic diagram of the second-stage collection tube, (c) is a schematic diagram of the third-stage collection tube, and (d) is a schematic diagram of the third-stage collection tube. Figure 1 The AA section diagram, i.e. the layout diagram of the collection branch pipe;

[0016] Wherein: 1—Activated carbon inlet; 2—Tank body; 3—First steam or nitrogen inlet; 4—First carbon layer temperature detection port; 5—Second steam or nitrogen inlet; 6—Second carbon layer temperature detection port; 7—Steam outlet; 8—Third carbon layer temperature detection port; 9—Activated carbon outlet; 10—Lower end cap; 11—Upper end cap; 20—Spray nozzle assembly; 50—Collection pipe assembly; 51—First-stage collection pipe; 52—Second-stage collection pipe; 53—Third-stage collection pipe; 54—Collection branch pipe; 55—First flange; 56—Second flange; 57—First cover plate; 58—Third flange; 59—End cap; 60—Fourth flange; 61—Second cover plate; 62—Filter cap; 63—Screen. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] like Figure 1 As shown, this utility model provides a novel columnar activated carbon regeneration tank, including a tank body 2. The top of the tank body 2 has an upper end cap 11, and the bottom of the tank body 2 has a lower end cap 10. An activated carbon inlet 1 is located at the center of the upper end cap 11, and the lower end cap 10 has a 60° conical structure with an activated carbon outlet 9 located at the center of its bottom. Based on the height of the tank body 2, multiple sets of nozzle assemblies 20 are evenly arranged inside the tank body 2, and multiple steam or nitrogen inlets are correspondingly provided on the tank body 2. Each set of nozzle assemblies 20 is connected to one steam or nitrogen inlet. Specifically, Figure 1Two sets of nozzle assemblies 20 are arranged in the middle, which are respectively connected to the first steam or nitrogen inlet 3 and the second steam or nitrogen inlet 5 on the tank body 2. A steam outlet 7 is provided at the lower part of the tank body 2 near the lower end cap 10. A collection pipe assembly 50 is provided in the lower part of the tank body 2 and inside the lower end cap 10. The collection pipe assembly 50 is located below the nozzle assembly and is connected to the steam outlet 7. A first carbon layer temperature detection port 4 and a second carbon layer temperature detection port 6 are respectively provided below the first steam or nitrogen inlet 3 and the second steam or nitrogen inlet 5 on the tank body 2. A third carbon layer temperature detection port 8 is provided on the lower end cap 10.

[0019] This utility model uses a collection pipe assembly 50 to replace the original water cap fixing plate, such as Figure 2 As shown, the collecting pipe assembly 50 includes a primary collecting pipe 51, a secondary collecting pipe 52, a tertiary collecting pipe 53, a collecting branch pipe 54, and a filter cap 62. The primary collecting pipe 51 has a first flange 55 at one end, connected to the steam outlet 7, and a first cover plate 57 at the other end. Several second flanges 56 are symmetrically arranged on both sides of the primary collecting pipe 51. The secondary collecting pipe 52 has a third flange 58 at one end and a cap 59 at the other end. The third flange 58 connects to the second flanges 56, thereby installing the secondary collecting pipe 52 onto both sides of the primary collecting pipe 51. The top of the tertiary collection pipe 53 is provided with a fourth flange 60, through which the tertiary collection pipe 53 is installed at the bottom of the secondary collection pipe 52. The bottom of the tertiary collection pipe 53 is provided with a second cover plate 61. The lower part of the tertiary collection pipe 53 is provided with 2 to 4 downwardly inclined collection branch pipes 54. The lower end of the collection branch pipe 54 is provided with a filter cap 62, and a screen 63 is provided on the filter cap 62. The screen 63 can prevent columnar activated carbon and powdered carbon powder in the regeneration tank from entering the collection branch pipe 54.

[0020] When the collection pipe assembly 50 is arranged, the three-stage collection pipe 53 extends downward into the lower end cap 10, and the lower end of the collection branch pipe 54 is close to the bottom of the lower end cap. Several collection branch pipes 54 are evenly arranged in the lower end cap 10.

[0021] Once the columnar activated carbon is saturated with adsorption, it is transferred into the regeneration tank through activated carbon inlet 1, filling the tank body 2 and the lower head 10. Superheated steam or nitrogen is then introduced through the first steam or nitrogen inlet 3 and the second steam or nitrogen inlet 5 located on the tank body 2. The superheated steam or nitrogen is evenly sprayed into each layer of activated carbon through the nozzle assembly 20, heating the columnar activated carbon. Upon contact with the activated carbon, the steam or nitrogen forms lower-temperature steam, which is collected through the collection branch pipe 54 located within the conical lower head 10. The steam then sequentially enters the tertiary collection pipe 53, the secondary collection pipe 52, and the primary collection pipe 51, before exiting the tank body 2 through the steam outlet 7. With the continuous introduction of superheated steam, the temperature of the activated carbon layer gradually increases from top to bottom, causing a continuous rise in the temperature of the activated carbon within the lower head 10. The carbon layer temperature is detected by the first carbon layer temperature detection port 4 and the second carbon layer temperature detection port 6 located on the tank body 2, and the third carbon layer temperature detection port 8 located on the lower head 10. Because the collecting branch pipes 54 are evenly distributed within the lower head 10, it ensures that the activated carbon within the lower head 10 can be heated uniformly, allowing it to be fully activated and regenerated. After regeneration, the columnar activated carbon is discharged from the regeneration tank through the activated carbon outlet 9.

[0022] This invention uses a collection pipe assembly 50 to replace the original water cap fixing plate, making full use of the space in the lower end cap and reducing the overall height of the regeneration tank. The collection pipe assembly 50 has a simple structure, is easy to install and maintain, and reduces manufacturing and processing costs. The screen effectively prevents activated carbon from entering the hot circulation pipe. The lower end cap adopts a 60° conical structure, allowing activated carbon to be discharged quickly and automatically through the activated carbon outlet at the bottom, improving unloading efficiency.

[0023] The above is a further detailed description of the present utility model in conjunction with specific embodiments, and it should not be considered that the specific implementation of the present utility model is limited to this. For those skilled in the art to which the present utility model pertains and related fields, any extensions, operation methods, and data substitutions made based on the technical solution concept of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A columnar activated carbon regeneration tank, characterized in that: The container includes a tank body (2), with an upper end cap (11) at the top and a lower end cap (10) at the bottom. An activated carbon inlet (1) is located at the center of the upper end cap (11), and the lower end cap (10) has a 60° conical structure with an activated carbon outlet (9) at the center of its bottom. The tank body (2) has a first steam or nitrogen inlet (3) and a second steam or nitrogen inlet (5). Two sets of nozzle assemblies (20) are arranged inside the tank body (2), respectively connected to the first steam or nitrogen inlet (3) and the second steam or nitrogen inlet (5). A steam outlet (7) is located at the bottom of the tank body (2). The lower part and the lower end cap (10) are provided with a collection pipe assembly (50) that communicates with the steam outlet (7); the collection pipe assembly (50) includes a primary collection pipe (51), a secondary collection pipe (52), a tertiary collection pipe (53), a collection branch pipe (54) and a filter cap (62). The primary collection pipe (51) is provided with multiple secondary collection pipes (52) symmetrically on both sides. Each secondary collection pipe (52) is provided with multiple tertiary collection pipes (53) along its length at the bottom. Each tertiary collection pipe (53) is provided with multiple downwardly inclined collection branch pipes (54) along its circumference at the lower part. The lower end of the collection branch pipe (54) is provided with a filter cap (62) and a screen (63) is provided on the filter cap (62).

2. The columnar activated carbon regeneration tank according to claim 1, characterized in that: The first-stage collection pipe (51) has a first flange (55) at one end, which is connected to the steam outlet on the activated carbon regeneration tank, and a first cover plate (57) at the other end. Several second flanges (56) are symmetrically arranged on both sides of the first-stage collection pipe (51). The second-stage collection pipe (52) has a third flange (58) at one end and a cap (59) at the other end. The third flange (58) is connected to the second flange (56). The third-stage collection pipe (53) has a fourth flange (60) at the top. The fourth flange (60) is installed at the bottom of the second-stage collection pipe (52). The bottom of the third-stage collection pipe (53) has a second cover plate (61). Each third-stage collection pipe (53) has 2 to 4 collection branch pipes (54) evenly arranged at the bottom.

3. The columnar activated carbon regeneration tank according to claim 1 or 2, characterized in that: The tank body (2) is provided with a first carbon layer temperature detection port (4) and a second carbon layer temperature detection port (6) below the first steam or nitrogen inlet (3) and the second steam or nitrogen inlet (5), respectively, and the lower end cap (10) is provided with a third carbon layer temperature detection port (8).

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