A conveniently maintained activated carbon adsorption tower for exhaust gas treatment

Abstract

This utility model discloses an easy-to-maintain activated carbon adsorption tower for waste gas treatment, comprising a shell and a filter structure. The shell has opposing air inlet and air outlet surfaces, with an air inlet and an air outlet respectively located at the center of the air inlet and air outlet surfaces. The filter structure is disposed inside the shell and connected to the air inlet, and is separated from part of the inner wall of the shell to form an air outlet chamber. The filter structure includes a filter media cylinder and a separator cylinder. The filter media cylinder is connected to the air inlet surface, and one end of the separator cylinder is connected to the air inlet, while the other end abuts against the bottom of the filter media cylinder. The separator cylinder divides the internal space of the filter media cylinder into an air inlet chamber and a filter chamber surrounding the air inlet chamber, with the filter chamber filled with filter media. Multiple air holes are provided on the walls of both the filter media cylinder and the separator cylinder. A replacement port is provided on the air inlet surface in the area corresponding to the filter chamber, and a cover plate is detachably connected to the replacement port. The technical solution of this utility model aims to improve the efficiency of filter media replacement and adsorption efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to an easy-to-maintain activated carbon adsorption tower for waste gas treatment. Background Technology

[0002] Activated carbon adsorption towers are one of the most common core devices in industrial waste gas treatment. Their basic structure typically includes a steel shell filled with a large amount of granular or honeycomb activated carbon as filter media. Waste gas enters the tower through an inlet on one side of the shell. As it passes through the activated carbon layer, pollutants are adsorbed and trapped by its abundant pore structure, and the purified gas is discharged from an outlet on the other side.

[0003] However, this traditional mainstream structure has significant drawbacks. When some or all of the activated carbon becomes saturated, the machine must be shut down and the huge cover on the top or side of the tower must be opened to remove the loading box that holds the activated carbon, replace the activated carbon inside, and then reinstall it in the tower. This operation is cumbersome and time-consuming. In terms of adsorption efficiency, the traditional structure is prone to uneven airflow distribution. The exhaust gas tends to pass through the path with the least resistance, resulting in some areas of activated carbon not being saturated while other areas have already been penetrated. The overall adsorption efficiency fails to reach the optimal level, causing filter media waste and increased operating costs. Utility Model Content

[0004] The main purpose of this invention is to provide an easy-to-maintain activated carbon adsorption tower for waste gas treatment, which aims to improve the efficiency of filter media replacement and adsorption efficiency.

[0005] To achieve the above objectives, this utility model proposes an easy-to-maintain activated carbon adsorption tower for waste gas treatment, comprising:

[0006] The housing has an air inlet and an air outlet facing each other, and the air inlet and air outlet are respectively provided at the center of the air inlet and air outlet.

[0007] A filter structure is disposed inside the housing and connected to the air inlet, and the filter structure is separated from part of the inner wall of the housing to form an air outlet chamber;

[0008] The filter structure includes a filter media cylinder and a separator cylinder. The filter media cylinder is connected to the air inlet surface. One end of the separator cylinder is connected to the air inlet, and the other end is abutted against the bottom of the filter media cylinder. The separator cylinder divides the internal space of the filter media cylinder into an air inlet chamber and a filter chamber surrounding the air inlet chamber. The filter chamber is filled with filter media.

[0009] The walls of the filter media cylinder and the separator cylinder are provided with multiple air holes so that the exhaust gas can flow from the air inlet chamber through the filter chamber and out to the air outlet chamber. The air inlet surface is provided with a replacement port in the area corresponding to the filter chamber, and a cover plate is detachably connected to the replacement port.

[0010] In one possible implementation, the filter chamber is provided with multiple partitions in the circumferential direction to divide the filter chamber into multiple independent chambers, and each chamber is provided with a cover plate.

[0011] In one possible implementation, a plurality of support columns are connected between the outer wall of the filter cartridge and the inner wall of the housing.

[0012] In one possible implementation, the air inlet is connected to a pipe connection on the side away from the air inlet chamber.

[0013] In one possible implementation, a support base is provided on the bottom side of the housing.

[0014] This invention utilizes a replacement port with a cover on the air inlet directly opposite the filter chamber. Maintenance personnel can directly open the cover to replace the activated carbon in the lower filter chamber without disassembling any internal structure, greatly simplifying the process, shortening downtime, and reducing labor intensity and maintenance costs. Simultaneously, the device guides exhaust gas evenly from the bottom into the circumferentially separated independent filter chambers via a separator, forcing the exhaust gas to fully penetrate the filter media layer, ensuring uniform airflow distribution, and significantly improving adsorption efficiency and treatment stability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an embodiment of the easy-to-maintain activated carbon adsorption tower for waste gas treatment according to the present invention;

[0017] Figure 2 This is a cross-sectional view of an embodiment of the easy-to-maintain activated carbon adsorption tower for waste gas treatment according to this utility model;

[0018] Figure 3 This is a cross-sectional view from another perspective of an embodiment of the easy-to-maintain activated carbon adsorption tower for waste gas treatment according to this utility model.

[0019] Explanation of icon numbers:

[0020] 1. Shell; 11. Air inlet; 12. Air outlet; 13. Air inlet; 14. Air outlet; 15. Replacement port; 16. Cover plate; 17. Pipe connection; 2. Air outlet chamber; 3. Filter media cartridge; 31. Air hole; 4. Divider cylinder; 5. Air inlet chamber; 6. Filter chamber; 61. Filter media; 62. Partition plate; 7. Support column; 8. Support base.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] Reference Figures 1 to 3 This utility model proposes an easy-to-maintain activated carbon adsorption tower for waste gas treatment, comprising a shell 1 and a filter structure. The shell 1 has an inlet surface 11 and an outlet surface 12, with an inlet 13 and an outlet 14 respectively located at the center of the inlet surface 11 and the outlet surface 12. The filter structure is disposed inside the shell 1 and connected to the inlet 13, and is separated from part of the inner wall of the shell 1 to form an outlet chamber 2. The filter structure includes a filter media cylinder 3 and a separator cylinder 4, with the filter media cylinder 3 connected to the inlet surface 11. One end of the separator cylinder 4 is connected to the air inlet 13, and the other end abuts against the bottom of the filter media cylinder 3. The separator cylinder 4 divides the internal space of the filter media cylinder 3 into an air inlet chamber 5 and a filter chamber 6 surrounding the air inlet chamber 5. The filter chamber 6 is filled with filter media. The walls of both the filter media cylinder 3 and the separator cylinder 4 are provided with multiple air holes 31 so that the exhaust gas flows from the air inlet chamber 5 through the filter chamber 6 and out to the air outlet chamber 2 through the air holes 31. The air inlet surface 11 is provided with a replacement port 15 in the area corresponding to the filter chamber 6. A cover plate 16 is detachably connected to the replacement port 15.

[0024] Understandably, housing 1 is the main outer shell of the equipment, shaped like a cylinder. The cylinder has an inlet surface 11 and an outlet surface 12 on either side. The inlet 13 is located at the center of the inlet surface 11, through which exhaust gas enters; the outlet 14 is located at the center of the outlet surface 12, through which purified gas exits. The filter structure is the core functional component, installed inside housing 1, but not tightly attached to all the inner walls of housing 1. Instead, it remains separated from a portion of the inner walls of housing 1; this separation forms the outlet chamber 2. The outlet chamber 2 collects the clean gas that has passed through activated carbon filtration and guides it to the outlet 14.

[0025] The filter structure itself consists of two parts, resembling a concentric cylinder. The filter media cylinder 3 is a larger outer cylinder connected to the air inlet surface 11 of the housing 1; the separator cylinder 4 is a smaller inner cylinder, one end directly connected to and leading to the air inlet 13, and the other end extending downwards to abut against the bottom of the filter media cylinder 3, dividing the internal space of the filter media cylinder 3 into two parts: the air inlet chamber 5 and the filter chamber 6. The air inlet chamber 5 is the cavity inside the separator cylinder 4, through which exhaust gas directly enters the cavity from the air inlet 13; the filter chamber 6 is the annular cavity between the separator cylinder 4 and the filter media cylinder 3. This cavity is filled with activated carbon filter media 61, which is where the actual adsorption and purification occur. In this example, the filter media 61 can be an activated carbon plate with through holes, or a filter bag containing activated carbon powder, etc., without further limitation.

[0026] Exhaust gas enters through inlet 13 and is directly guided down to intake chamber 5 via separator 4. Within intake chamber 5, the exhaust gas diffuses outward through pores 31 on the wall of separator 4, entering filter chamber 6. It then passes through activated carbon filter media 61 within filter chamber 6, where pollutants are adsorbed. The purified gas flows out through pores 31 on the wall of filter media 3, entering outlet chamber 2 between housing 1 and the filter structure, and finally exiting through outlet 14. The annularly distributed filter chamber 6 achieves more efficient and comprehensive adsorption.

[0027] On the air intake surface 11, at an annular position directly opposite the filter chamber 6, there is a replacement port 15, which is sealed with a cover plate 16. In this example, it is connected by bolts or other means that allow for quick disassembly. During maintenance, simply open this cover plate 16 to directly access the activated carbon inside the filter chamber 6. Old, depleted activated carbon can be drawn out through this port, and new activated carbon can be filled in through this port. If it is a carbon plate, it can be directly plugged in and replaced.

[0028] Reference Figures 1 to 3 In one embodiment of the present invention, a plurality of partitions 62 are arranged circumferentially inside the filter cavity 6 to divide the filter cavity 6 into a plurality of independent chambers, and each chamber is provided with a cover plate 16.

[0029] Understandably, multiple baffles 62 were added inside the original annular filter chamber 6. These baffles 62 divided the entire annular area into multiple independent, fan-shaped chambers. Each independent fan-shaped chamber has an independent cover 16 that can be opened and closed separately.

[0030] Because the adsorption efficiency of activated carbon varies with usage time and exhaust gas concentration, not all zones will saturate simultaneously. The compartmentalized design allows users to replace the filter media only in saturated chambers, saving significant amounts of activated carbon material costs.

[0031] For large adsorption towers, after being filled with a large amount of activated carbon, the wall of the filter media cylinder 3 will be subjected to significant lateral pressure. The internal circumferential baffles 62 act as reinforcing ribs, significantly enhancing the strength and stability of the entire filtration structure and preventing deformation or damage.

[0032] Reference Figures 2 to 3 In one embodiment of this utility model, a plurality of support columns 7 are connected between the outer wall surface of the filter cylinder 3 and the inner wall surface of the housing 1.

[0033] Understandably, the support column 7 ensures structural strength and stability. When exhaust gas enters the equipment, it will generate a certain impact force and vibration. The support column 7 can effectively transfer these forces from the internal filter cylinder 3 to the robust outer shell 1, preventing the filter cylinder 3 from shaking or shifting violently. The filled activated carbon will generate outward lateral pressure on the cylinder wall of the filter cylinder 3. The support column 7 provides additional support points for the filter cylinder 3, greatly enhancing its resistance to pressure and deformation, and preventing damage to the cylinder.

[0034] Reference Figures 1 to 2 In one embodiment of the present invention, the air inlet 13 is connected to a pipe connection part 17 on the side away from the air inlet chamber 5.

[0035] Understandably, a pipe connection 17 is connected to the outer side of the air inlet surface 11 of the equipment casing to facilitate connection to external pipes. Industrial waste gas is drawn in by a fan through a large pipeline system. The end of this pipeline system needs to be securely connected to the activated carbon adsorption tower through this pipe connection 17, thereby seamlessly and sealedly guiding the waste gas into the tower for treatment. This standardized interface design makes the installation of the equipment very simple. When system maintenance or relocation is required, this part can be easily disassembled to separate the equipment from the pipeline system.

[0036] Reference Figures 1 to 3 In one embodiment of this utility model, a support base 8 is provided on the bottom side of the housing 1.

[0037] Understandably, at the very bottom of the entire equipment housing 1, there is a support base 8, which in this case is a frame welded from steel profiles, capable of stably placing the equipment on the ground.

[0038] The entire adsorption tower is quite heavy, including the metal shell 1, all the internal steel structures, and the large amount of activated carbon filling it. The support base 8 evenly distributes this enormous weight, preventing the bottom of the shell 1 from being directly subjected to force and deformed; a low-center-of-gravity, wide base can lower the overall center of gravity of the equipment, effectively preventing the equipment from tipping over or shaking, and ensuring the stability of the equipment.

[0039] This invention employs a replacement port 15 located on the air inlet surface 11 directly opposite the filter chamber 6, covered with a cover plate 16. Maintenance personnel can directly open the cover plate 16 to replace the activated carbon in the lower filter chamber 6 without disassembling any internal structure, greatly simplifying the process, shortening downtime, and reducing labor intensity and maintenance costs. Simultaneously, the device guides the exhaust gas evenly from the bottom into the circumferentially separated independent filter chambers 6 via a separator cylinder 4, forcing the exhaust gas to fully penetrate the filter media layer, ensuring uniform airflow distribution, and significantly improving adsorption efficiency and treatment stability.

[0040] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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 application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An activated carbon adsorption tower for exhaust gas treatment which is easy to maintain, characterized in that, include: The housing has an air inlet and an air outlet facing each other, and the air inlet and air outlet are respectively provided at the center of the air inlet and air outlet. A filter structure is disposed inside the housing and connected to the air inlet, and the filter structure is separated from part of the inner wall of the housing to form an air outlet chamber; The filter structure includes a filter media cylinder and a separator cylinder. The filter media cylinder is connected to the air inlet surface. One end of the separator cylinder is connected to the air inlet, and the other end is abutted against the bottom of the filter media cylinder. The separator cylinder divides the internal space of the filter media cylinder into an air inlet chamber and a filter chamber surrounding the air inlet chamber. The filter chamber is filled with filter media. The walls of the filter media cylinder and the separator cylinder are provided with multiple air holes so that the exhaust gas can flow from the air inlet chamber through the filter chamber and out to the air outlet chamber. The air inlet surface is provided with a replacement port in the area corresponding to the filter chamber, and a cover plate is detachably connected to the replacement port.

2. The activated carbon adsorption tower for exhaust gas treatment, which is convenient to maintain according to claim 1, characterized in that, The filter chamber is provided with multiple partitions in the circumferential direction, which divide the filter chamber into multiple independent chambers, and each chamber is provided with a cover plate.

3. The easily-maintained activated carbon adsorption tower for exhaust gas treatment according to claim 2, characterized by, Multiple support columns connect the outer wall of the filter media cartridge to the inner wall of the housing.

4. The easily-maintained activated carbon adsorption tower for exhaust gas treatment according to claim 1, characterized by, The air inlet is connected to a pipe connection on the side away from the air inlet chamber.

5. The easily-maintained activated carbon adsorption tower for exhaust gas treatment according to claim 1, characterized by, A support base is provided on the bottom side of the housing.

Images