An exhaust gas treatment emission filtering mechanism

By using a three-way valve to switch activated carbon filter plates in the exhaust filtration mechanism of the exhaust gas treatment, and combining a steam unit and a water pump spray system to self-clean the activated carbon plates, the problem of frequent replacement of activated carbon filter plates is solved, thereby improving exhaust gas emission efficiency and resource utilization efficiency.

CN224442556UActive Publication Date: 2026-07-03GUANGXI NANNING KANGWANJIA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI NANNING KANGWANJIA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-06-05
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing technologies, activated carbon filter plates need to be disassembled and replaced by workers after a period of use in the waste gas emission filtration process, which leads to a reduction in waste gas emission efficiency.

Method used

An exhaust filtration mechanism for waste gas treatment was designed. It uses a three-way valve to switch activated carbon filter plates, a steam unit to self-clean the activated carbon plates, and combines water pump spraying and condenser to treat waste gas, thereby realizing automatic cleaning and regeneration of activated carbon plates.

Benefits of technology

This reduces the frequency of activated carbon filter replacement, improves exhaust gas emission efficiency, and enhances resource utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of waste gas treatment and filtration technology, and discloses a waste gas treatment emission filtration mechanism, including a fixed base and a three-way valve. A treatment box, a first exhaust box, and a second exhaust box are fixedly installed on the outer surface of the fixed base. The output end of the three-way valve is fixedly connected to the interior of the first exhaust box and the second exhaust box, respectively. When the activated carbon filter plate in the first exhaust box has been used for too long and the filter plate efficiency has decreased, the three-way valve is controlled to discharge waste gas into the second exhaust box, and the exhaust pipe and sewage pipe fixedly connected to the outer surface of the first exhaust box are closed. The waste gas treatment worker controls the steam unit installed through the outer surface of the first exhaust box to operate, so as to perform self-cleaning on several activated carbon plates, thereby reducing the need for workers to disassemble and replace the activated carbon filter plates after a period of use and improving the emission efficiency of waste gas.
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Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment and filtration technology, specifically to a waste gas treatment emission filtration mechanism. Background Technology

[0002] Waste gas refers to toxic and harmful gases emitted by humans during production and daily life, especially from chemical plants, steel mills, pharmaceutical factories, coking plants, and oil refineries. The waste gas emitted by these plants has a strong odor, seriously pollutes the environment, and affects human health. Waste gas contains a large number of pollutants and has a complex and diverse composition. Waste gas containing gaseous pollutants such as VOCs, odors, sulfur oxides, nitrogen oxides, or dioxins is particularly difficult to treat. At the same time, these substances emit a foul odor and are an important factor causing air pollution.

[0003] Currently, during the process of filtering exhaust gases, activated carbon filter plates need to be disassembled and replaced by workers after a period of use, which seriously reduces the efficiency of exhaust gas emission. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an exhaust filtration mechanism for waste gas treatment, thereby solving the problem mentioned in the background art that activated carbon filter plates need to be disassembled and replaced by workers after a period of use, which seriously reduces the exhaust gas emission efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment emission filtration mechanism, comprising a fixed base and a three-way valve. A treatment box, a first exhaust box, and a second exhaust box are fixedly installed on the outer surface of the fixed base. The output end of the three-way valve is fixedly connected to the interior of the first exhaust box and the second exhaust box, respectively. Several activated carbon plates are provided inside the first exhaust box and the second exhaust box. A top plate is provided on the outer surface of the first exhaust box and the second exhaust box. A suction pump is fixedly connected to the outer surface of both top plates. A condenser is fixedly connected to the output end of the suction pump. A steam generator and a cooler are connected through the outer surface of the first exhaust box and the second exhaust box. An exhaust pipe and a sewage pipe are fixedly connected to the outer surface of the first exhaust box and the second exhaust box.

[0006] Preferably, a purified water tank is fixedly installed on the outer surface of the fixed base, a water pump is provided on the outer surface of the purified water tank, a spray pipe is fixedly connected to the output end of the water pump, a plurality of spray heads are provided inside the treatment box through the spray pipe, a connecting pipe is fixedly connected to the bottom of the treatment box, an electric valve is provided on the outer surface of the connecting pipe, a filter box is fixedly connected to the output end of the connecting pipe, a circulation pipe is fixedly connected to the outer surface of the filter box, the output end of the circulation pipe is fixedly connected to the inside of the purified water tank, an exhaust gas inlet pipe is fixedly connected to the inside of the treatment box, an exhaust pipe is fixedly connected to the outer surface of the treatment box away from the exhaust gas inlet pipe, and the exhaust pipe is fixedly connected to the output end of the three-way valve away from the first exhaust box and the second exhaust box.

[0007] Preferably, the three-way valve is an electric three-way regulating valve, the electric valve is an electric control valve, the steam unit is a steam generator, and the outer surface of the fixed base is provided with a controller. The output end of the controller is electrically connected to the three-way valve, the electric valve, the water pump, the air cooler, the steam unit, the air pump, and the condenser.

[0008] Preferably, the spray pipe is located at the top of the exhaust gas inlet pipe, the outer surface of the filter box is fixedly connected to the discharge pipe, and the bottom of the treatment box is funnel-shaped.

[0009] Preferably, control valves are provided on the outer surfaces of both exhaust pipes and sewage pipes, the sewage pipe is located at the lower part of the three-way valve, the activated carbon plates are located at the upper part of the three-way valve, and the exhaust pipe is located at the upper part of the activated carbon plates.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The exhaust filtration mechanism of this waste gas treatment system controls a three-way valve to discharge waste gas into a second exhaust box when the activated carbon filter plates in the first exhaust box have been used for too long and their efficiency has decreased. This closes the exhaust pipe and sewage pipe that are fixedly connected to the outer surface of the first exhaust box. The waste gas treatment workers control the steam generator set installed through the outer surface of the first exhaust box to operate and perform self-cleaning on several activated carbon plates. This reduces the need for workers to disassemble and replace the activated carbon filter plates after a period of use, thereby improving the efficiency of waste gas emission.

[0012] 2. The exhaust filtration mechanism of this waste gas treatment uses a water pump to adjust the purified water in the purified water tank, so that it sprays and filters the waste gas entering the treatment box from the waste gas inlet pipe. The wastewater generated from filtering the waste gas flows into the filter box through a connecting pipe for filtration. The filtered purified water is then recycled back into the purified water tank through a circulating water tank, thereby improving resource utilization efficiency and facilitating use. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model from the left side;

[0015] Figure 3 This is a top view of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model from the right side;

[0017] Figure 5 This is a front sectional view of the processing box structure of this utility model;

[0018] Figure 6 This is a front sectional view of the condenser structure of this utility model.

[0019] In the diagram: 1. Fixed base; 2. Processing box; 3. No. 1 exhaust box; 4. No. 2 exhaust box; 5. Three-way valve; 6. Top plate; 7. Air pump; 8. Condenser; 9. Steam unit; 10. Air cooler; 11. Exhaust pipe; 12. Sewage pipe; 13. Activated carbon plate; 14. Purified water tank; 15. Water pump; 16. Spray pipe; 17. Connecting pipe; 18. Electric valve; 19. Filter box; 20. Circulation pipe; 21. Waste gas inlet pipe; 22. Exhaust pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Please refer to Figures 1-6.

[0022] An exhaust filtration mechanism for treating waste gas includes a fixed base 1 and a three-way valve 5. A treatment box 2, a first exhaust box 3, and a second exhaust box 4 are fixedly installed on the outer surface of the fixed base 1. The output end of the three-way valve 5 is fixedly connected to the interior of the first exhaust box 3 and the second exhaust box 4, respectively. Several activated carbon plates 13 are provided inside the first exhaust box 3 and the second exhaust box 4. A top plate 6 is provided on the outer surface of the first exhaust box 3 and the second exhaust box 4. An air pump 7 is fixedly connected to the outer surface of the two top plates 6. A condenser 8 is fixedly connected to the output end of the air pump 7. A steam unit 9 and a cold air fan 10 are connected through the outer surface of the first exhaust box 3 and the second exhaust box 4. An exhaust pipe 11 and a sewage pipe 12 are fixedly connected to the outer surface of the first exhaust box 3 and the second exhaust box 4.

[0023] Specifically, the waste gas treated in the treatment box 2 is selectively circulated to either the first exhaust box 3 or the second exhaust box 4 via the three-way valve 5. When the activated carbon filter plates in the first exhaust box 3 have been used for too long and their efficiency has decreased, the three-way valve 5 is controlled to discharge the waste gas into the second exhaust box 4. The exhaust pipe 11 and the drain pipe 12, which are fixedly connected to the outer surface of the first exhaust box 3, are closed. The waste gas treatment worker controls the steam generator 9, which is installed through the outer surface of the first exhaust box 3, to operate and self-clean several activated carbon plates 13. A certain amount of steam is generated during the cleaning process, and then controlled... The vacuum pump 7 extracts the steam generated during cleaning into the condenser 8. When the saturated steam containing a large amount of organic matter passes through the condenser 8, the gaseous organic matter and water are condensed into a mixed solution and sent to the separator for separation. Valuable solutions are separated and recovered, while other waste liquids are discharged into the sewage tank. Then, the air cooler 10 is controlled to cool and dry the activated carbon plate 13 to a normal temperature and dry state to ensure its adsorption efficiency. This achieves the effect of reducing the need for workers to disassemble and replace the activated carbon filter plate after a period of use and improving the emission efficiency of waste gas.

[0024] In the embodiment: control valves are provided on the outer surfaces of the two exhaust pipes 11 and the sewage pipe 12. The sewage pipe 12 is located at the lower part of the three-way valve 5. Several activated carbon plates 13 are located at the upper part of the three-way valve 5. The exhaust pipe 11 is located at the upper part of the several activated carbon plates 13.

[0025] Specifically, since control valves are installed on the outer surfaces of both exhaust pipes 11 and sewage pipe 12, sewage pipe 12 is located at the lower part of three-way valve 5, several activated carbon plates 13 are located at the upper part of three-way valve 5, and exhaust pipe 11 is located at the upper part of several activated carbon plates 13, due to the characteristics of the exhaust gas itself, the exhaust gas passes through several activated carbon plates 13 in sequence for layer-by-layer filtration during the treatment and emission process, and is then discharged from exhaust pipe 11, so that the exhaust gas emission meets the standards.

[0026] The working principle involves selectively channeling the treated exhaust gas from the treatment chamber 2 to either exhaust chamber 3 or exhaust chamber 4 via a three-way valve 5. When the activated carbon filter plates in exhaust chamber 3 have been used for an extended period and their efficiency decreases, the three-way valve 5 is controlled to discharge the exhaust gas into exhaust chamber 4. The exhaust pipe 11 and drain pipe 12, which are fixedly connected to the outer surface of exhaust chamber 3, are then closed. The exhaust gas treatment worker controls the steam generator 9, which runs through the outer surface of exhaust chamber 3, to perform self-cleaning on several activated carbon plates 13. This cleaning process generates steam, which is then extracted by the suction pump 7 and directed to the condenser 8. When the saturated steam containing a large amount of organic matter passes through the condenser 8, it becomes gaseous. Organic matter and water are condensed into a mixed solution and sent to a separator for separation. Valuable solutions are recovered, while other waste liquids are discharged into a sewage tank. Then, the cooler 10 is controlled to cool and dry the activated carbon plates 13 to room temperature to ensure their adsorption efficiency. Then, the three-way valve 5 is controlled to allow the waste gas to pass through the first exhaust box 3 again. Then, the relevant equipment in the second exhaust box 4 is controlled to perform self-cleaning on several activated carbon plates 13 in the second exhaust box 4. Compared with related technologies, the exhaust filtration mechanism for waste gas treatment provided by this utility model has the following beneficial effects: it reduces the need for workers to disassemble and replace the activated carbon filter plates after a period of use, thereby improving the efficiency of waste gas emission. Example

[0027] Please refer to Figures 1-6.

[0028] A purified water tank 14 is fixedly installed on the outer surface of the fixed base 1. A water pump 15 is installed on the outer surface of the purified water tank 14. A spray pipe 16 is fixedly connected to the output end of the water pump 15. Several spray heads are installed inside the treatment box 2 through the spray pipe 16. A connecting pipe 17 is fixedly connected to the bottom of the treatment box 2. An electric valve 18 is installed on the outer surface of the connecting pipe 17. A filter box 19 is fixedly connected to the output end of the connecting pipe 17. A circulation pipe 20 is fixedly connected to the outer surface of the filter box 19. The output end of the circulation pipe 20 is fixedly connected to the inside of the purified water tank 14. An exhaust gas inlet pipe 21 is fixedly connected to the inside of the treatment box 2. An exhaust pipe 22 is fixedly connected to the outer surface of the treatment box 2 away from the exhaust gas inlet pipe 21. The exhaust pipe 22 is fixedly connected to the output end of the three-way valve 5 away from the first exhaust box 3 and the second exhaust box 4.

[0029] Specifically, the water pump 15 adjusts the purified water in the purified water tank 14, so that it sprays and filters the exhaust gas entering the treatment box 2 from the exhaust gas inlet pipe 21 through the spray pipe 16. The wastewater generated from filtering the exhaust gas flows to the filter box 19 through the connecting pipe 17 for filtration. The filtered purified water is then recycled back to the purified water tank 14 through the circulating water tank, thereby improving the efficiency of resource utilization and facilitating its use.

[0030] In this embodiment: the three-way valve 5 is an electric three-way regulating valve, the electric valve 18 is an electric control valve, the steam unit 9 is a steam generator, and the outer surface of the fixed base 1 is equipped with a controller. The output end of the controller is electrically connected to the three-way valve 5, the electric valve 18, the water pump 15, the air cooler 10, the steam unit 9, the air pump 7, and the condenser 8.

[0031] Specifically, the three-way valve 5 is an electric three-way regulating valve. This electric three-way regulating valve consists of a linear-stroke electronic electric actuator and a three-way confluence / diversion valve with a cylindrical, thin-walled, window-shaped valve core. It features a compact structure, light weight, sensitive operation, and precise flow characteristics. It directly accepts 4-20mA DC, 0-10mA DC, or 1-5V input from regulating instruments. The operation can be controlled by DC control signals and single-phase power supply, realizing automatic adjustment and control of fluid media in process pipelines. It is widely used to accurately control process parameters such as pressure, flow rate, temperature, and liquid level of media such as gas, liquid, and steam, and keep them at a given value. It is suitable for situations where a fluid is split into two streams through a three-way valve 516 or two fluids are combined into one fluid through a three-way valve 5. The electric valve 18 is an electric control valve, which is convenient for workers to operate. The steam unit 9 is a steam generator, also called a steam heat source machine, which is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. The outer surface of the fixed base 1 is equipped with a controller. The output end of the controller is electrically connected to the three-way valve 5, the electric valve 18, the water pump 15, the air cooler 10, the steam unit 9, the air pump 7, and the condenser 8. The controller is an existing structure, and the control circuit can be implemented by simple programming by those skilled in the art. It is common knowledge in the field. It is only used and not modified. Therefore, the control method and circuit connection will not be described in detail.

[0032] In this embodiment: the spray pipe 16 is located at the top of the exhaust gas inlet pipe 21, the outer surface of the filter box 19 is fixedly connected to the discharge pipe, and the bottom of the treatment box 2 is funnel-shaped.

[0033] Specifically, since the spray pipe 16 is located at the top of the exhaust gas inlet pipe 21, the outer surface of the filter box 19 is fixedly connected to the discharge pipe, and the bottom of the treatment box 2 is funnel-shaped, it is convenient to discharge the purified water sprayed on the exhaust gas.

[0034] Working principle: The water pump 15 adjusts the purified water in the purified water tank 14, so that it sprays and filters the exhaust gas entering the treatment tank 2 from the exhaust gas inlet pipe 21 through the spray pipe 16. The wastewater generated from filtering the exhaust gas flows through the connecting pipe 17 to the filter box 19 for filtration. The filtered purified water flows back to the purified water tank 14 through the circulating water tank for recycling. The purified exhaust gas then flows through the exhaust pipe 22 and connects to the three-way valve 5. The three-way valve 5 then selects to connect to the first exhaust box 3 or the second exhaust box 4. Compared with related technologies, the exhaust gas treatment emission filtration mechanism provided by this utility model has the following beneficial effects: thereby improving the utilization efficiency of resources and facilitating use.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust treatment emission filtering mechanism comprising a fixed seat (1) and a three-way valve (5), characterized in that: The outer surface of the fixed base (1) is fixedly installed with a processing box (2), a first exhaust box (3) and a second exhaust box (4). The output end of the three-way valve (5) is fixedly connected to the interior of the first exhaust box (3) and the second exhaust box (4). The interior of the first exhaust box (3) and the second exhaust box (4) is provided with several activated carbon plates (13). The outer surface of the first exhaust box (3) and the second exhaust box (4) is provided with a top plate (6). The outer surface of the two top plates (6) is fixedly connected with a vacuum pump (7). The output end of the vacuum pump (7) is fixedly connected with a condenser (8). The outer surface of the first exhaust box (3) and the second exhaust box (4) is connected to a steam unit (9) and a cold air blower (10). The outer surface of the first exhaust box (3) and the second exhaust box (4) is fixedly connected with an exhaust pipe (11) and a sewage pipe (12).

2. An exhaust treatment emission filtering mechanism according to claim 1, wherein: A purified water tank (14) is fixedly installed on the outer surface of the fixed base (1). A water pump (15) is provided on the outer surface of the purified water tank (14). A spray pipe (16) is fixedly connected to the output end of the water pump (15). Several spray heads are provided inside the treatment box (2) through the spray pipe (16). A connecting pipe (17) is fixedly connected to the bottom of the treatment box (2). An electric valve (18) is provided on the outer surface of the connecting pipe (17). The output end of the connecting pipe (17) is fixedly connected to... The filter box (19) has a circulation pipe (20) fixedly connected to its outer surface. The output end of the circulation pipe (20) is fixedly connected to the interior of the purified water tank (14). The interior of the treatment box (2) is fixedly connected to the exhaust gas inlet pipe (21). The outer surface of the treatment box (2) away from the exhaust gas inlet pipe (21) is fixedly connected to the exhaust pipe (22). The exhaust pipe (22) is fixedly connected to the output end of the three-way valve (5) away from the first exhaust box (3) and the second exhaust box (4).

3. An exhaust treatment emission filtering mechanism according to claim 2, wherein: The three-way valve (5) is an electric three-way regulating valve, the electric valve (18) is an electric control valve, the steam unit (9) is a steam generator, and the outer surface of the fixed base (1) is equipped with a controller. The output end of the controller is electrically connected to the three-way valve (5), the electric valve (18), the water pump (15), the air cooler (10), the steam unit (9), the air pump (7), and the condenser (8).

4. The exhaust filtration mechanism for waste gas treatment according to claim 2, characterized in that: The spray pipe (16) is located at the top of the exhaust gas inlet pipe (21), the outer surface of the filter box (19) is fixedly connected to the discharge pipe, and the bottom of the treatment box (2) is funnel-shaped.

5. The exhaust treatment emission filtering mechanism of claim 1, wherein: Control valves are provided on the outer surfaces of the two exhaust pipes (11) and the sewage pipe (12). The sewage pipe (12) is located at the lower part of the three-way valve (5), and several activated carbon plates (13) are located at the upper part of the three-way valve (5). The exhaust pipe (11) is located at the upper part of several activated carbon plates (13).