Indoor waste gas filter capable of regenerating activated carbon
By designing an indoor exhaust gas filter with regenerable activated carbon, utilizing lint-free cleaning of the interception box, a heater to regenerate the activated carbon layer, and a multi-layer filtration structure, the problems of resource waste and clogging after the use of activated carbon and filter screens are solved, realizing the reuse of activated carbon and improving airflow filtration efficiency.
Patent Information
- Application Number
- CN202511463406.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2025-11-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing technologies, activated carbon and filter screens fail to effectively utilize their remaining adsorption capacity after use, resulting in resource waste and easy clogging of the filter screens, which affects the airflow filtration efficiency.
An indoor exhaust gas filter with regenerable activated carbon was designed, comprising a purification box, an interception box, a filter box, and a purification cartridge. Adhesive lint is used to clean impurities on the surface of the interception box. A heater regenerates the activated carbon layer and activates the activated carbon layer. A rotating shaft drives the filter frame to rotate and intercept impurities, achieving multi-layer filtration and disinfection.
It enables the reuse of activated carbon, reduces resource consumption, maintains filter cleanliness, improves airflow filtration efficiency, and extends equipment lifespan.
Smart Images

Figure CN120926530A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of indoor exhaust gas treatment technology, and in particular to an indoor exhaust gas filter using regenerable activated carbon. Background Technology
[0002] Indoor environments include residences, office buildings, offices, vehicles, cultural, entertainment, and sports venues, hospital wards, school and kindergarten classrooms and activity rooms, restaurants, hotels, and other similar places.
[0003] To ensure indoor air cleanliness, activated carbon or filters are used to intercept impurities in the airflow. Currently, after the activated carbon or filters have been processed, operators manually replace them. This method has the following drawbacks: the activated carbon is discarded directly after replacement without being reused, thus failing to utilize its remaining adsorption capacity and increasing operating costs. Furthermore, the filters are not properly maintained during operation, requiring operators to manually remove and clean them after a period of use. This method cannot guarantee the cleanliness of the filters in a timely manner and allows impurities in the airflow to easily accumulate on the filters, causing pore blockage and affecting the efficiency of airflow filtration. Summary of the Invention
[0004] The purpose of this invention is to solve the problem of poor indoor airflow filtration efficiency in the prior art, and to propose an indoor exhaust gas filter using regenerable activated carbon.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: An indoor exhaust gas filter using renewable activated carbon includes a purification box equipped with casters for purifying indoor airflow. The purification box contains an interception box and a filter box for intercepting dust. A lint roller for cleaning the surface of the interception box is mounted inside the purification box via a movable component. A purification cylinder connected to the filter box and used for purifying dust is located outside the purification box. An installation frame that mates with the interception box is located inside the purification box, and an activated carbon layer for intercepting impurities in the airflow is laid within the installation frame. A heater for heating the activated carbon layer is mounted on the installation frame.
[0006] Preferably, the purification box is fitted with a door via a pin, and symmetrically arranged mounting brackets are fixedly installed inside the purification box. Positioning rods extending into the mounting brackets are fixedly installed on both sides of the interception box.
[0007] Preferably, the interception box has uniformly distributed filter holes on its surface for collecting dust, and the filter holes have a trapezoidal annular structure. A fine filter screen for intercepting dust is installed inside the interception box, and a fine filter cloth is laid on the fine filter screen. An installation plate extending outside the interception box is fixedly installed on the fine filter screen, and the installation plate and the interception box are provided with magnetic plates of opposite poles attracting each other. A sealing plug that fits into the interception box is provided on the installation plate.
[0008] Preferably, the movable component includes a housing connected to the purification box, and a lead screw is rotatably installed inside the housing. A matching nut is slidably sleeved on the lead screw, and a positioning cylinder is rotatably installed on the nut. The positioning cylinder and the lint trap are provided with mutually cooperating letter Velcro.
[0009] Preferably, a guide plate is fixedly installed on the nut, a groove is provided on the purification box to guide the guide plate, the lead screw is horizontally set on one side of the interception box, a handle extending to the outside of the outer shell is fixedly installed on the lead screw, and a fixing bolt connected to the outer shell is threaded on the handle, and an opening and closing plate is installed on the top pin of the outer shell.
[0010] Preferably, the interception box and the mounting frame are provided with corresponding threaded pipes, and a threaded reinforcing pipe is provided between the two threaded pipes.
[0011] Preferably, a mesh plate is fixedly installed inside the filter box, and the filter box is divided into an upper chamber and a lower chamber by the mesh plate. The lower chamber is connected to the purification cylinder by a pipe for unidirectional airflow. The upper chamber is lined with a purification layer for purifying dust.
[0012] Preferably, the mesh plate is horizontally arranged, the pipe is equipped with a one-way valve for controlling the flow direction of dust and disinfectant, and the purification layer is composed of a sponge layer, a filter cotton layer, an odor adsorption layer, and an activated carbon fiber layer.
[0013] Preferably, the top of the purification cylinder is connected to a sealing cap by screws, the bottom of the purification cylinder is fixedly installed with a ring frame, and a ring plate is slidably sleeved on the ring frame. A stirring rod for stirring the disinfectant is fixedly installed on the ring plate. A motor is fixedly installed on the sealing cap, and the output end of the motor is fixedly connected to a rotating shaft that cooperates with the ring plate. Three circumferentially distributed filter frames for intercepting impurities are fixedly installed on the rotating shaft, and absorbent cotton is laid inside the filter frames.
[0014] Preferably, a hollow column is fixedly installed on the ring plate, the rotating shaft is vertically arranged, and a pressure rod extending into the hollow column is fixedly installed on the rotating shaft. A groove for guiding the ring plate is provided on the ring frame.
[0015] Compared with the prior art, the present invention has the following advantages: 1. This invention, by setting up an interception box, a filter box, and a purification cylinder in the purification box, enables the purification structure inside the interception box, filter box, and purification cylinder to intercept dust in the airflow, thereby filtering the indoor airflow and ensuring the cleanliness of the indoor airflow.
[0016] 2. This invention provides lint traps inside the outer shell to adhere to impurities on the surface of the interception box, thereby ensuring the cleanliness and filtration efficiency of the interception box. The activated carbon layer can be heated by a heater, allowing it to be regenerated and reused, thus reducing resource consumption.
[0017] 3. This invention uses the rotation of the rotating shaft to drive the filter frame to intercept impurities in the disinfectant. By removing the rotating shaft from the purification cylinder, the disinfectant can be disinfected by the impurities in the airflow. The operator can clean the filter frame and purification cylinder. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of an indoor exhaust gas filter using renewable activated carbon proposed in this invention. Figure 2 This is a cross-sectional view of the purification chamber of an indoor exhaust gas filter using renewable activated carbon proposed in this invention. Figure 3 This is a cross-sectional view of an indoor exhaust gas filter using renewable activated carbon proposed in this invention. Figure 4 This is a top sectional view of an indoor exhaust gas filter using renewable activated carbon proposed in this invention. Figure 5 This is a side sectional view of an indoor exhaust gas filter using renewable activated carbon proposed in this invention. Figure 6 This is a cross-sectional view of the purification cylinder of an indoor exhaust gas filter using renewable activated carbon, as proposed in this invention.
[0019] In the diagram: 1. Purification box; 2. Mounting frame; 3. Positioning rod; 4. Interception box; 5. Filter hole; 6. Mounting plate; 7. Fine filter screen; 8. Fine filter cloth; 9. Outer shell; 10. Lead screw; 11. Nut; 12. Positioning cylinder; 13. Lint trap; 14. Mounting frame; 15. Threaded pipe; 16. Threaded reinforcing pipe; 17. Heater; 18. Filter box; 19. Mesh plate; 20. Purification cylinder; 21. Pipe; 22. Ring frame; 23. Ring plate; 24. Stirring rod; 25. Hollow column; 26. Motor; 27. Rotating shaft; 28. Filter frame; 29. Absorbent cotton; 30. Pressure rod. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0021] Reference Figures 1-6 An indoor exhaust gas filter using renewable activated carbon includes a purification box 1 equipped with casters for purifying indoor airflow. When the purification box 1 is powered on, indoor airflow enters the purification box 1 through an air inlet pipe. This technical solution is existing technology and will not be elaborated on here. The purification box 1 is equipped with an interception box 4 and a filter box 18 for intercepting dust. The purification box 1 is fitted with a door by a pin. Symmetrically arranged mounting brackets 2 are fixedly installed inside the purification box 1. Positioning rods 3 extending into the mounting brackets 2 are fixedly installed on both sides of the interception box 4. The mounting brackets 2 can position the positioning rods 3, making the installation of the interception box 4 more convenient. After the interception box 4 is removed from the purification box 1, the operator can clean the disassembled interception box 4.
[0022] The interception box 4 has uniformly distributed filter holes 5 on its surface for collecting dust. The filter holes 5 have a trapezoidal annular structure. A fine filter screen 7 for intercepting dust is installed inside the interception box 4, and a fine filter cloth 8 is laid on the fine filter screen 7. By setting the filter holes 5 to a trapezoidal annular structure, impurities are not easily allowed to flow out after entering the interception box 4. The fine filter screen 7 and the fine filter cloth 8 can intercept impurities in the airflow.
[0023] A mounting plate 6 extending out of the interception box 4 is fixedly installed on the fine filter screen 7. The mounting plate 6 and the interception box 4 are provided with magnetic plates with opposite poles attracting each other. The mounting plate 6 is provided with a sealing plug that fits into the interception box 4. By pulling out the mounting plate 6, the mounting plate 6 can drive the fine filter screen 7 out of the interception box 4, which makes it more convenient for the operator to clean the fine filter screen 7.
[0024] Lint sticky tape 13 is installed inside the purification box 1 via a movable part to clean the surface of the interception box 4.
[0025] The movable component includes a housing 9 connected to the purification box 1, and a lead screw 10 is rotatably installed inside the housing 9. A matching nut 11 is slidably sleeved on the lead screw 10, and a positioning cylinder 12 is rotatably installed on the nut 11. The positioning cylinder 12 and the lint trap 13 are provided with mutually cooperating letter Velcro. By setting the positioning cylinder 12 and the lint trap 13 inside the purification box 1, the lint trap 13 can adsorb impurities on the surface of the interception box 4 when rotating. The letter Velcro connects the positioning cylinder 12 and the lint trap 13, making it more convenient to replace the lint trap 13 later.
[0026] A guide plate is fixedly installed on the nut 11. A groove is provided on the purification box 1 to guide the guide plate. The groove guides the guide plate and limits the movement direction of the nut 11. The lead screw 10 is horizontally set on one side of the interception box 4. A handle extending to the outer shell 9 is fixedly installed on the lead screw 10. A fixing bolt connected to the outer shell 9 is threaded on the handle. An opening and closing plate is installed on the top pin of the outer shell 9. The outer shell 9 is opened by opening and closing the pin. When the positioning cylinder 12 moves the lint remover 13 into the outer shell 9, the operator can quickly remove the lint remover 13.
[0027] The outside of the purification box 1 is provided with a purification cylinder 20 connected to the filter box 18 for purifying dust. The interception box 4 and the mounting frame 14 are provided with corresponding threaded pipes 15, and a threaded reinforcing pipe 16 is provided between the two threaded pipes 15. By traction of the threaded reinforcing pipe 16 to rotate, the threaded reinforcing pipe 16 connects the two threaded pipes 15 when it moves, thereby limiting the flow direction of the airflow.
[0028] The purification box 1 is equipped with a mounting frame 14 that cooperates with the interception box 4. The mounting frame 14 is lined with an activated carbon layer for intercepting impurities in the airflow. The mounting frame 14 is equipped with a heater 17 for heating the activated carbon layer. The activated carbon layer intercepts impurities in the airflow. When the filtration effect of the activated carbon layer is not good, the heater 17 is powered on to heat the activated carbon layer and reactivate its activity, thereby reducing resource consumption.
[0029] A mesh plate 19 is fixedly installed inside the filter box 18. The filter box 18 is divided into an upper chamber and a lower chamber by the mesh plate 19. The lower chamber is connected to the purification cylinder 20 by a pipe 21 for unidirectional airflow. A purification layer for purifying dust is laid in the upper chamber. The mesh plate 19 is set horizontally. A one-way valve for controlling the flow direction of dust and disinfectant is installed in the pipe 21. By installing a one-way valve in the pipe 21, the flow direction of dust and disinfectant can be controlled. The purification layer is composed of a sponge layer, a filter cotton layer, an odor adsorption layer, and an activated carbon fiber layer. The sponge layer and filter cotton layer can intercept micro dust in the airflow, the odor adsorption layer can adsorb odors in the airflow, and the activated carbon fiber layer can adsorb dust, thereby fully filtering the flowing airflow.
[0030] The top of the purification cylinder 20 is connected to a sealing cap by screws, and the bottom of the purification cylinder 20 is fixedly installed with a ring frame 22. A ring plate 23 is slidably sleeved on the ring frame 22. A stirring rod 24 for stirring the disinfectant is fixedly installed on the ring plate 23. The groove guides the ring plate 23, so that the ring plate 23 drives the stirring rod 24 to stir the disinfectant, thereby increasing the contact between the dust and the disinfectant.
[0031] A motor 26 is fixedly installed on the sealing cover, and the output end of the motor 26 is fixedly connected to a rotating shaft 27 that cooperates with the ring plate 23. Three circumferentially distributed filter frames 28 that intercept impurities are fixedly installed on the rotating shaft 27, and absorbent cotton 29 is laid inside the filter frames 28. A hollow column 25 is fixedly installed on the ring plate 23. The rotating shaft 27 is vertically set, and a pressure rod 30 extending into the hollow column 25 is fixedly installed on the rotating shaft 27. A groove is opened on the ring frame 22 to guide the ring plate 23. When the rotating shaft 27 rotates, it drives the filter frames 28 and absorbent cotton 29 to rotate. When the filter frames 28 rotate, they can intercept dust, and the absorbent cotton 29 can adsorb dust, so that the airflow can be fully filtered when it passes through the disinfectant.
[0032] It should be noted that the specific model and specifications of heater 17 and motor 26 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here.
[0033] The functional principle of this invention can be explained through the following operational methods: The purification box 1 is moved indoors by the casters. After the purification box 1 is powered on, the airflow in the room enters the interception box 4 through the air inlet pipe and filter hole 5. The fine filter cloth 8 and fine filter screen 7 in the interception box 4 can intercept the airflow. After initial filtration, the airflow enters the mounting frame 14 through the threaded pipe 15. The activated carbon layer can intercept impurities in the airflow. After further filtration, the airflow enters the filter box 18. The purification layer in the upper cavity can intercept impurities. The airflow enters the purification cylinder 20 through the mesh plate 19 and the pipe 21. The airflow and disinfectant are filtered together. The output of motor 26 drives shaft 27 to rotate, shaft 27 drives filter frame 28 to rotate, filter frame 28 drives absorbent cotton 29 to intercept impurities in disinfectant, shaft 27 drives ring plate 23 to rotate through pressure rod 30 and hollow column 25, ring plate 23 drives stirring rod 24 to stir disinfectant and dust when rotating in groove, airflow is discharged from purification cylinder 20 through through hole on sealing cover; After the purification box 1 has been used for a period of time, the traction handle is rotated, and the handle drives the lead screw 10 to rotate. When the lead screw 10 rotates, it drives the nut 11 to move horizontally. When the nut 11 moves, the positioning cylinder 12 abuts against the interception box 4. When the positioning cylinder 12 rotates, it uses the adhesive sticker 13 to stick the impurities on the surface of the interception box 4. When it is necessary to clean the inside of the purification box 1, the purification box 1 is opened through the door, the threaded reinforcing tube 16 is rotated to disconnect the two threaded tubes 15, the interception box 4 is lifted, and the interception box 4 drives the positioning rod 3 to disconnect from the mounting frame 2. The operator takes the interception box 4 out of the purification box 1 and pulls out the mounting plate 6, so that the mounting plate 6 drives the fine filter screen 7 and fine filter cloth 8 to be taken out of the interception box 4. The operator can then clean the inside of the interception box 4. The traction opening and closing plate opens the outer casing 9, and the lint trap 13 is removed from the positioning cylinder 12 using the letter Velcro. Remove the screws and pull out the sealing cover, so that the sealing cover moves the filter frame 28 and the absorbent cotton 29 out, and check the status of the filter frame 28 and the purification cylinder 20.
[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. An indoor exhaust gas filter using regenerable activated carbon, comprising a purification box (1) equipped with wheels for purifying indoor airflow, characterized in that, The purification box (1) is equipped with an interception box (4) and a filter box (18) for intercepting dust. The purification box (1) is equipped with a lint roller (13) for cleaning the surface of the interception box (4) via a moving part. The purification box (1) is equipped with a purification cylinder (20) connected to the filter box (18) for purifying dust on the outside. The purification box (1) is equipped with an installation frame (14) that cooperates with the interception box (4). The installation frame (14) is lined with an activated carbon layer for intercepting impurities in the airflow. The installation frame (14) is equipped with a heater (17) for heating the activated carbon layer.
2. The indoor exhaust gas filter with regenerable activated carbon according to claim 1, characterized in that, The purification box (1) is fitted with a door via a pin, and a symmetrically arranged mounting bracket (2) is fixedly installed inside the purification box (1). Positioning rods (3) extending into the mounting bracket (2) are fixedly installed on both sides of the interception box (4).
3. The indoor exhaust gas filter using regenerable activated carbon according to claim 1, characterized in that, The interception box (4) has uniformly distributed filter holes (5) for collecting dust on its surface, and the filter holes (5) are trapezoidal ring structures. A fine filter screen (7) for intercepting dust is installed inside the interception box (4), and a fine filter cloth (8) is laid on the fine filter screen (7). An installation plate (6) extending to the outside of the interception box (4) is fixedly installed on the fine filter screen (7), and the installation plate (6) and the interception box (4) are provided with magnetic plates that attract each other. A sealing plug that fits into the interception box (4) is provided on the installation plate (6).
4. An indoor exhaust gas filter using regenerable activated carbon according to claim 1, characterized in that, The movable component includes a housing (9) connected to the purification box (1), and a lead screw (10) is rotatably installed inside the housing (9). A matching nut (11) is slidably sleeved on the lead screw (10), and a positioning cylinder (12) is rotatably installed on the nut (11). The positioning cylinder (12) and the lint remover (13) are provided with mutually cooperating letter Velcro.
5. An indoor exhaust gas filter using regenerable activated carbon according to claim 4, characterized in that, A guide plate is fixedly installed on the nut (11), and a groove is provided on the purification box (1) for guiding the guide plate. The screw (10) is horizontally set on one side of the interception box (4). A handle extending to the outer shell (9) is fixedly installed on the screw (10), and a fixing bolt connected to the outer shell (9) is threaded on the handle. An opening and closing plate is installed on the top pin of the outer shell (9).
6. An indoor exhaust gas filter using regenerable activated carbon according to claim 1, characterized in that, The interception box (4) and the mounting frame (14) are provided with corresponding threaded pipes (15), and a threaded reinforcing pipe (16) is provided between the two threaded pipes (15).
7. An indoor exhaust gas filter using regenerable activated carbon according to claim 1, characterized in that, The filter box (18) is fixedly installed with a mesh plate (19). The filter box (18) is divided into an upper chamber and a lower chamber by the mesh plate (19). The lower chamber is connected to the purification cylinder (20) by a pipe (21) for unidirectional airflow. The upper chamber is covered with a purification layer for purifying dust.
8. An indoor exhaust gas filter using regenerable activated carbon according to claim 7, characterized in that, The mesh plate (19) is set horizontally, and the pipe (21) is equipped with a one-way valve for controlling the flow of dust and disinfectant. The purification layer is composed of a sponge layer, a filter cotton layer, an odor adsorption layer, and an activated carbon fiber layer.
9. An indoor exhaust gas filter using regenerable activated carbon according to claim 1, characterized in that, The top of the purification cylinder (20) is connected to a sealing cap by screws. A ring frame (22) is fixedly installed at the bottom of the purification cylinder (20), and a ring plate (23) is slidably sleeved on the ring frame (22). A stirring rod (24) for stirring the disinfectant is fixedly installed on the ring plate (23). A motor (26) is fixedly installed on the sealing cap, and a rotating shaft (27) that cooperates with the ring plate (23) is fixedly connected to the output end of the motor (26). Three circumferentially distributed filter frames (28) that intercept impurities are fixedly installed on the rotating shaft (27), and absorbent cotton (29) is laid inside the filter frames (28).
10. An indoor exhaust gas filter using regenerable activated carbon according to claim 9, characterized in that, A hollow column (25) is fixedly installed on the ring plate (23), the rotating shaft (27) is vertically arranged, and a pressure rod (30) extending into the hollow column (25) is fixedly installed on the rotating shaft (27). A groove is provided on the ring frame (22) for guiding the ring plate (23).
Citation Information
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