A fluidized bed calcination activated carbon filter cartridge assembly

Abstract

This utility model relates to the field of activated carbon filter cartridges, and more particularly to a fluidized bed calcined activated carbon filter cartridge assembly. It includes an outer tube and activated carbon. An upper flange is installed at one end of the outer tube, and a lower flange is installed at the end of the outer tube furthest from the upper flange. A filter structure is formed on the inner wall of the outer tube. The filter structure includes an air distribution plate, which is fixedly connected to the inner wall of the outer tube. A plurality of air inlets are evenly formed on the surface of the air distribution plate. A support ring is fixedly connected to the inner wall of the outer tube. The fluidized bed calcined activated carbon filter cartridge assembly provided by this utility model has the advantages of stably supporting the activated carbon while ensuring uniform airflow through the filter layer, avoiding uneven local airflow velocity that could cause turbulent flow of activated carbon particles. This ensures the stability of the fluidized bed calcination process and prevents fine activated carbon particles from leaking out of the filter cartridge assembly, thus improving the cleanliness of the final produced gas.

Description

Technical Field

[0001] This utility model relates to the field of activated carbon filter cartridges, and in particular to a fluidized bed calcined activated carbon filter cartridge. Background Technology

[0002] Activated carbon filtration and purification equipment is widely used in environmental management, fluid purification and other fields. Vertical cylindrical filter cartridges are the core components of this type of equipment, which rely on internal activated carbon media to complete adsorption and purification operations, and have a wide range of applications.

[0003] Traditional vertical filter cartridges have a closed cylindrical structure, filled with activated carbon media, and the airflow is unidirectional in the vertical direction. The bottom of the filter cartridge is an integral closed plate with a fixed internal cavity structure and statically stacked activated carbon.

[0004] The above-mentioned issues have revealed the following defects: Traditional vertical filter elements use solid base plates or conventional partition structures, resulting in poor uniformity of air distribution throughout the entire area, large differences in airflow velocity within the cavity, uneven media contact, and the solidified internal structure cannot meet the stable requirement of uniform air distribution throughout the entire area. Furthermore, the overall structural form is too simple to simultaneously meet the requirements of uniform air distribution and adaptation to auxiliary working conditions. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the poor uniformity of air distribution, large differences in airflow velocity within the cavity, uneven media contact, inability of the solidified internal structure to meet the stable requirement of uniform air distribution, and the single overall structural form, which makes it difficult to meet the requirements of uniform air distribution and adaptation to auxiliary working conditions.

[0006] To solve the above-mentioned technical problems, this utility model provides a fluidized bed calcined activated carbon filter element assembly, comprising: an outer tube and activated carbon, an upper flange installed at one end of the outer tube, a lower flange installed at the end of the outer tube away from the upper flange, a filter structure provided on the inner wall of the outer tube, the filter structure including an air distribution plate, the air distribution plate being fixedly connected to the inner wall of the outer tube, a plurality of air inlet holes being uniformly opened on the surface of the air distribution plate, a support ring being fixedly connected to the inner wall of the outer tube, and a first filter screen being fixedly connected to the outer tube by means of the support ring.

[0007] The effects achieved by the above components are as follows: by adding a filter assembly, the activated carbon can be stably supported, while ensuring that the airflow can pass through the filter layer evenly, avoiding the flow disorder of activated carbon particles caused by uneven local airflow velocity. This not only ensures the stability of the fluidized bed calcination process, but also prevents fine activated carbon particles from leaking out of the filter element assembly, improves the cleanliness of the final produced gas, and reduces the burden of subsequent treatment.

[0008] Preferably, the upper surface of the first filter screen abuts against the limiting frame, and the limiting frame, the first filter screen, and the support ring are all threadedly connected by three screws.

[0009] The effects achieved by the above components are as follows: by adding a limiting bracket, the filter screen on the first filter screen can be limited and fixed, preventing the filter screen from shifting and deforming due to airflow impact during high-temperature calcination. At the same time, the screw connection makes disassembly and assembly simple, facilitating subsequent cleaning and replacement of the filter screen, and reducing maintenance costs. The screw also passes through the limiting bracket, the first filter screen, and the support ring, locking the three components together, further improving the stability of the overall structure and reducing the probability of structural loosening during use.

[0010] Preferably, a second filter screen is fixedly connected to the inner wall of the outer tube, and the second filter screen is located above the air distribution plate.

[0011] The effect achieved by the above components is as follows: by adding a second filter screen between the air distribution plate and the activated carbon, the falling activated carbon can be caught and blocked for a second time, further preventing activated carbon particles from leaking into the air intake area below the air distribution plate, thus ensuring the fluidization effect of the overall structure.

[0012] Preferably, an auxiliary ring is fixedly connected to the inner wall of the outer tube, and the auxiliary ring abuts against the air distribution plate.

[0013] The effect achieved by the above components is to further limit and fix the air distribution plate by the auxiliary ring, prevent the air distribution plate from shaking or shifting due to long-term impact of airflow, and ensure the stability of the air distribution plate position.

[0014] Preferably, the outer tube has an auxiliary structure on its arc surface. The auxiliary structure includes a connecting pipe that is connected to the outer tube. A sleeve is fitted on one side of the connecting pipe, and a filter tube is fixedly connected to the inner wall of the sleeve. The filter tube abuts against the inner wall of the connecting pipe, and a sealing cap is threaded onto the arc surface of the connecting pipe.

[0015] The effect achieved by the above components is that, by setting up auxiliary structures, external pipes can be connected, making it easy to introduce high-temperature hot air to bake the activated carbon that has absorbed a lot of dirt clean at high temperature, without having to be disassembled and replaced.

[0016] Preferably, a sealing ring, which is a rubber ring, is fixedly connected to the side of the sleeve near the sealing cap.

[0017] The effects achieved by the above components are as follows: by filling the gap between the sleeve and the sealing cap with the sealing ring, the sealing performance at the docking position is improved, high-temperature airflow is prevented from leaking at the docking position, the internal pressure of the device is stabilized, heat energy is reduced, and the effect of activated carbon regeneration and calcination is further guaranteed.

[0018] Preferably, the arc surface of the sealing cap is provided with three reserved grooves, and the inner wall of the reserved grooves is fixedly connected with a number of anti-slip protrusions.

[0019] The effect achieved by the above components is as follows: by using the reserved groove and anti-slip protrusions, the friction when rotating the sealing cap can be increased, making it easier for operators to rotate the sealing cap to complete the disassembly and assembly operations, reducing the difficulty of installation and disassembly, and improving the convenience of operation.

[0020] Compared with related technologies, the fluidized bed calcined activated carbon filter element assembly provided by this utility model has the following beneficial effects:

[0021] This invention provides a fluidized bed calcined activated carbon filter element assembly. After the entire filter structure is installed via an upper and lower flange, gas enters from the lower flange, passes through an air distribution plate with inlet holes for uniform distribution, and then flows upward. The flowing airflow passes through the second filter screen and enters the activated carbon area. The air distribution plate's structure, which evenly disperses the airflow, ensures that the airflow acts uniformly on the entire activated carbon bed, keeping the activated carbon particles in a stable fluidized bed state. This increases the contact area between the airflow and the activated carbon, improving the efficiency of calcination regeneration and adsorption treatment. The airflow then passes through the first filter screen and finally exits from the upper flange. The first and second filter screens can perform dual-filtering of the activated carbon particles. A layer of barriers prevents fine activated carbon particles from leaking out with the airflow, ensuring the cleanliness of the outgoing gas. A limiting frame, together with a screw, stably fixes the first filter screen to the support ring, preventing the first filter screen from shifting due to airflow impact. An auxiliary ring reinforces the air distribution plate to prevent it from shifting, ensuring air distribution stability. By adding a filter assembly, the activated carbon can be stably supported, while ensuring that the airflow can pass through the filter layer evenly, avoiding uneven local airflow velocity that would cause turbulent flow of activated carbon particles. This not only ensures the stability of the fluidized bed calcination process but also prevents fine activated carbon particles from leaking out of the filter element assembly, improving the cleanliness of the final output gas and reducing the burden on subsequent treatment.

[0022] When online cleaning of activated carbon is required, remove the sealing cap, align the sleeve with the filter tube with the connecting pipe to complete the connection, and fill the gap with the sealing ring to ensure a tight seal. Then, high-temperature regeneration gas flow can be introduced into the activated carbon bed through the connecting pipe to directly calcine the activated carbon within the device, burning off the adsorbed dirt and restoring the carbon material. The anti-slip protrusions in the reserved groove make it easy for operators to rotate and disassemble the sealing cap. The entire structure, through the cooperation of its various components, not only solves the problem of uneven gas distribution in traditional structures, but also adapts to the working conditions of online fluidized bed calcination and cleaning, taking into account both uniform gas distribution and the requirements of auxiliary working conditions. By setting up auxiliary structures, external pipe connections can be made to facilitate the introduction of high-temperature hot gas, which can bake the activated carbon full of dirt clean at high temperature without disassembling and replacing it. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of a fluidized bed calcined activated carbon filter element assembly provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shown is a top-down view of the structure.

[0025] Figure 3 for Figure 2 The diagram shows a partial cross-section of the structure.

[0026] Figure 4 for Figure 3 The diagram shows a partial structural disassembly.

[0027] Figure 5 for Figure 2 The diagram shows the internal structure of the outer tube.

[0028] Figure 6 for Figure 5 The diagram shows a partial structural disassembly.

[0029] Figure 7 for Figure 2 The diagram shows a partial structural disassembly of the auxiliary structure.

[0030] The following are the labeling elements in the diagram: 1. Outer pipe; 2. Filter structure; 21. Air distribution plate; 22. Air inlet; 23. Support ring; 24. First filter screen; 25. Limiting bracket; 27. Screw; 28. Second filter screen; 29. ​​Auxiliary ring; 3. Auxiliary structure; 31. Connecting pipe; 32. Sleeve; 33. Filter tube; 34. Sealing cap; 35. Sealing ring; 36. Reserved groove; 37. Anti-slip protrusion; 4. Upper flange; 5. Lower flange; 6. Activated carbon. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0033] Please see Figures 1 to 7 The present invention provides a fluidized bed calcined activated carbon filter element assembly, comprising: an outer tube 1 and activated carbon 6, an upper flange 4 installed at one end of the outer tube 1, a lower flange 5 installed at the end of the outer tube 1 away from the upper flange 4, a filter structure 2 provided on the inner wall of the outer tube 1, and an auxiliary structure 3 provided on the arc surface of the outer tube 1.

[0034] In the embodiments of this utility model, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The filter structure 2 includes an air distribution plate 21, which is fixedly connected to the inner wall of the outer tube 1. The surface of the air distribution plate 21 is evenly provided with several air inlet holes 22. A support ring 23 is fixedly connected to the inner wall of the outer tube 1. A first filter screen 24 is fixedly connected to the outer tube 1 via the support ring 23. The upper surface of the first filter screen 24 abuts against a limiting frame 25. The limiting frame 25, the first filter screen 24, and the support ring 23 are all threadedly connected by three screws 27. The limiting frame 25 can limit and fix the filter screen on the first filter screen 24, preventing the filter screen from shifting and deforming due to airflow impact during high-temperature calcination. Simultaneously, the screw connection 27 is easy to install and remove, facilitating subsequent cleaning and replacement of the filter screen, resulting in lower maintenance costs. The screws 27 also penetrate the limiting frame 25. The first filter disc 24 and the support ring 23 can lock the three components together, further improving the stability of the overall structure and reducing the probability of structural loosening during use. The inner wall of the outer tube 1 is fixedly connected to the second filter disc 28, which is located above the air distribution plate 21. The second filter disc 28 can be between the air distribution plate 21 and the activated carbon 6, and can provide secondary support and blocking for the falling activated carbon 6, further preventing activated carbon 6 particles from leaking into the air intake area below the air distribution plate 21. The inner wall of the outer tube 1 is fixedly connected to the auxiliary ring 29, which abuts against the air distribution plate 21. The auxiliary ring 29 further limits and fixes the air distribution plate 21, preventing the air distribution plate 21 from shaking or shifting due to long-term airflow impact, and ensuring the stability of the position of the air distribution plate 21.

[0035] In the embodiments of this utility model, please refer to Figure 1 , Figure 2 and Figure 7 The auxiliary structure 3 includes a connecting pipe 31, which is connected to the outer pipe 1. A sleeve 32 is fitted onto one side of the connecting pipe 31. A filter pipe 33 is fixedly connected to the inner wall of the sleeve 32, and the filter pipe 33 abuts against the inner wall of the connecting pipe 31. A sealing cap 34 is threaded onto the arc surface of the connecting pipe 31. A sealing ring 35, which is a rubber ring, is fixedly connected to the side of the sleeve 32 near the sealing cap 34, thereby improving the sealing performance at the mating position. To prevent high-temperature airflow from leaking at the docking point, ensure stable internal pressure of the device, reduce heat energy waste, and further guarantee the regeneration and calcination effect of activated carbon 6, the arc surface of the sealing cap 34 is provided with three reserved grooves 36. The inner wall of the reserved grooves 36 is fixedly connected with several anti-slip protrusions 37. The reserved grooves 36, together with the anti-slip protrusions 37, can increase the friction when rotating the sealing cap 34, making it easier for operators to rotate the sealing cap 34 to complete the disassembly and assembly operations, reducing the difficulty of installation and disassembly, and improving the convenience of operation.

[0036] The working principle of the fluidized bed calcined activated carbon filter element assembly provided by this utility model is as follows: After the entire filter structure 2 is installed through the upper flange 4 and the lower flange 5, the gas enters from the lower flange 5, passes through the air distribution plate 21 with air inlet holes 22, and flows upward after being evenly distributed. The flowing airflow passes through the second filter screen 28 and enters the activated carbon 6 area. The structure of the air distribution plate 21, which evenly disperses the airflow, allows the airflow to act evenly on the entire activated carbon 6 bed, so that the activated carbon 6 particles are in a stable fluidized bed state, increasing the contact area between the airflow and the activated carbon 6, and improving the efficiency of calcination regeneration and adsorption treatment. The airflow then passes through the first filter screen 24 and finally flows out from the upper flange 4. The first filter screen 24 and the second filter screen 28 can filter the activated carbon 6. The particles are double-layered to prevent fine activated carbon 6 particles from leaking out with the airflow, ensuring the cleanliness of the outflowing gas. The limiting frame 25, together with the screw 27, stably fixes the first filter screen 24 on the support ring 23, preventing the first filter screen 24 from shifting due to airflow impact. The auxiliary ring 29 reinforces the air distribution plate 21 to prevent it from shifting, ensuring air distribution stability. By adding a filter assembly, the activated carbon 6 can be stably supported, while ensuring that the airflow can pass through the filter layer evenly, avoiding uneven local airflow velocity that would cause the activated carbon 6 particles to flow turbulently. This not only ensures the stability of the fluidized bed calcination process, but also prevents fine activated carbon 6 particles from leaking out of the filter element assembly, improving the cleanliness of the final output gas and reducing the burden of subsequent processing.

[0037] When online cleaning of activated carbon 6 is required, remove the sealing cap 34, align the sleeve 32 with the filter tube 33 with the connecting pipe 31 to complete the connection, and fill the gap with the sealing ring 35 to ensure sealing. Then, high-temperature regeneration gas flow can be introduced into the activated carbon 6 bed through the connecting pipe 31 to directly calcine the activated carbon 6 in the device, burn off the adsorbed dirt, and restore the carbon material. The anti-slip protrusion 37 in the reserved groove 36 can facilitate the operator to rotate and disassemble the sealing cap 34. The entire structure solves the problem of uneven gas distribution in traditional structures through the cooperation of various structures, and can adapt to the working conditions of online fluidized bed calcination and cleaning. It takes into account the usage requirements of uniform gas distribution and auxiliary working conditions. By setting the auxiliary structure 3, external pipe connection can be made to facilitate the introduction of high-temperature hot air to bake the activated carbon 6 full of dirt clean at high temperature without disassembling and replacing it.

[0038] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fluidized bed calcined activated carbon filter element assembly, characterized in that, include: An outer tube (1) and activated carbon (6) are provided. An upper flange (4) is installed at one end of the outer tube (1), and a lower flange (5) is installed at the end of the outer tube (1) away from the upper flange (4). A filter structure (2) is provided on the inner wall of the outer tube (1). The filter structure (2) includes an air distribution plate (21). The air distribution plate (21) is fixedly connected to the inner wall of the outer tube (1). Several air inlets (22) are evenly provided on the surface of the air distribution plate (21). A support ring (23) is fixedly connected to the inner wall of the outer tube (1). A first filter screen (24) is fixedly connected to the outer tube (1) by means of the support ring (23).

2. The fluidized bed calcined activated carbon filter element assembly according to claim 1, characterized in that, The upper surface of the first filter screen (24) abuts against the limiting frame (25), and the limiting frame (25), the first filter screen (24) and the support ring (23) are connected by three screws (27).

3. The fluidized bed calcined activated carbon filter element assembly according to claim 1, characterized in that, The inner wall of the outer tube (1) is fixedly connected to a second filter screen (28), which is located above the air distribution plate (21).

4. The fluidized bed calcined activated carbon filter element assembly according to claim 3, characterized in that, An auxiliary ring (29) is fixedly connected to the inner wall of the outer tube (1), and the auxiliary ring (29) abuts against the air distribution plate (21).

5. The fluidized bed calcined activated carbon filter element assembly according to claim 1, characterized in that, The outer tube (1) has an auxiliary structure (3) on its arc surface. The auxiliary structure (3) includes a connecting tube (31) which is connected to the outer tube (1). A sleeve (32) is fitted on one side of the connecting tube (31). A filter tube (33) is fixedly connected to the inner wall of the sleeve (32). The filter tube (33) abuts against the inner wall of the connecting tube (31). A sealing cap (34) is threaded onto the arc surface of the connecting tube (31).

6. A fluidized bed calcined activated carbon filter element assembly according to claim 5, characterized in that, A sealing ring (35) is fixedly connected to the side of the sleeve (32) near the sealing cap (34), and the sealing ring (35) is a rubber ring.

7. A fluidized bed calcined activated carbon filter element assembly according to claim 6, characterized in that, The sealing cap (34) has three reserved grooves (36) on its arc surface, and the inner wall of the reserved grooves (36) is fixedly connected with several anti-slip protrusions (37).

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