A ship exhaust gas treatment device based on activated carbon

Abstract

The application discloses a ship tail gas treatment device based on activated carbon and particularly relates to the technical field of tail gas treatment, which comprises a dust removal pipe, an air inlet connecting pipe is connected to the front end of the dust removal pipe, a filter assembly is arranged in the dust removal pipe, the filter assembly is provided with a protective shell and two mounting rings, the protective shell is arranged at the front position of the outer ring of the dust removal pipe, a water-cooling circulation pipe is arranged in the protective shell, the inner ring of the water-cooling circulation pipe is attached to the outer wall of the dust removal pipe, a liquid inlet that is adaptively matched with the water-cooling circulation pipe is connected to the central position of the bottom end of the protective shell, a liquid outlet is connected to the top end of the protective shell and is connected to the end of the water-cooling circulation pipe that is away from the liquid inlet, and the two mounting rings are arranged at the front positions in the dust removal pipe. The application can reduce the temperature of tail gas, make the temperature of tail gas reach the optimal adsorption temperature range of activated carbon, facilitate maintenance, and regularly discharge the failed activated carbon.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas treatment technology, and more specifically to a ship exhaust gas treatment device based on activated carbon. Background Technology

[0002] Ships generate exhaust gases while sailing. These exhaust gases mainly consist of pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter. During ship operation, these gases can impact the environment and human health. Therefore, treatment devices are needed to treat the exhaust gases before they are released. A ship exhaust gas treatment device is a type of equipment used to treat harmful gases emitted by ships in order to reduce their impact on the environment. The main goal of this equipment is to reduce the emission of harmful substances from ship exhaust gases.

[0003] Chinese patent provides a ship exhaust gas treatment device, publication number CN221492048U, which includes a treatment box, a vent pipe fixedly installed at the upper end of the treatment box, a purification box fixedly installed on one side of the vent pipe, a dust removal box fixedly installed on one side of the treatment box, and two storage boxes fixedly installed in the middle of the interior of the treatment box.

[0004] The above-mentioned device uses a treatment box, a purification box and a dust removal box to treat exhaust gas. It treats harmful substances in the exhaust gas through physical treatment methods. The dust removal box is equipped with multiple layers of filters of different densities. Through layer-by-layer filtration, the particles in the exhaust gas are filtered out. The exhaust gas passes through two protective boxes containing activated carbon particles, which can effectively adsorb and remove residual harmful substances in the exhaust gas.

[0005] However, its pretreatment structure is relatively simple. Because the exhaust gas from ship engines is at a high temperature, in order to ensure the adsorption performance of activated carbon, the exhaust gas temperature needs to be reduced to the appropriate adsorption temperature range of activated carbon. Without treating the exhaust gas temperature, the adsorption effect may be affected. At the same time, it is difficult to monitor the concentration of pollutants such as sulfur dioxide and nitrogen oxides in the exhaust gas before direct emission, resulting in poor performance. Furthermore, activated carbon will reach saturation after adsorbing a certain amount of pollutants and needs to be regenerated. The activated carbon is directly installed in the purification box, making maintenance and replacement difficult and reducing the flexibility of use. Summary of the Invention

[0006] To address the problems in the prior art, the present invention provides a ship exhaust gas treatment device based on activated carbon.

[0007] A ship exhaust gas treatment device based on activated carbon includes a dust removal pipe, an air inlet connection pipe connected to the front end of the dust removal pipe, a filter assembly inside the dust removal pipe, the filter assembly having a protective shell and two mounting rings, and the protective shell being installed at the front position of the outer ring of the dust removal pipe.

[0008] The protective shell is equipped with a water-cooled circulation pipe inside. The inner ring of the water-cooled circulation pipe is fitted to the outer wall of the dust removal pipe. The bottom of the protective shell is connected to a liquid inlet that is compatible with the water-cooled circulation pipe. The top of the protective shell is connected to a liquid outlet, which is connected to the end of the water-cooled circulation pipe away from the liquid inlet. Two mounting rings are respectively installed inside the dust removal pipe at the front position. A coarse filter and a fine filter are installed at the front end of the mounting rings by mounting bolts. A rotating rod is rotatably installed at the front and rear ends of the coarse filter and the fine filter, and a fan blade is provided at the front position of the outer ring of the rotating rod.

[0009] An adsorption assembly is provided at the rear end of the dust removal pipe. The adsorption assembly has a filling tube and two mounting frames. The two mounting frames are installed at the front and rear ends of the filling tube, and the front end of one of the mounting frames is connected to the rear end of the dust removal pipe. The mounting frame has two movable slots inside, and movable blocks are slidably installed in each of the two movable slots. Activated carbon plates are installed inside the movable blocks by fixing bolts. Two sealing boxes are installed at the top of the mounting frame, and sliding plates are slidably installed inside the sealing boxes. The bottom end of the sliding plate is connected to the rear of the outer ring of the movable block. An electric telescopic rod is installed at the front end of the sealing box, and the end of the push rod of the electric telescopic rod is connected to the sliding plate.

[0010] Optionally, the front and rear ends of the mounting frame are provided with material changing ports that are compatible with the movable block on the side away from the dust removal pipe. The front and rear ends of the mounting frame are detachably equipped with sealing plates that are compatible with the material changing ports by fixing nuts.

[0011] Optionally, a barrier mesh is provided at both the front and rear ends of the filling tube, a filler tube is connected to the top of the filling tube, and a discharge tube that is compatible with the filler tube is connected to the bottom of the filling tube.

[0012] Optionally, a detection tube is connected to the rear end of one of the mounting frames, a filter cotton plate box is connected to the rear end of the detection tube, an exhaust fan is connected to the end of the filter cotton plate box away from the detection tube, and an exhaust pipe is connected to the rear end of the exhaust fan.

[0013] Optionally, a solenoid valve is provided at the connection between the exhaust fan and the exhaust pipe, a gas monitoring sensor is provided at the top of the detection pipe, an air spray pipe is provided at the rear side of the detection pipe, and an air jet head adapted to the activated carbon plate is provided at the end of the air spray pipe that extends into the detection pipe.

[0014] Optionally, the sides of the two movable blocks that are close to each other are fitted with the mounting frame, and a sealing ring is provided at the connection between the mounting frame and the movable blocks. The activated carbon plate is detachably connected to the movable blocks by fixing bolts.

[0015] Optionally, the outer ring of the rotating rod is fixedly connected to the front end of both the coarse and fine filter screens. The two connecting plates are fitted with cleaning plates by connecting bolts, and the rear ends of the two cleaning plates are respectively attached to the front ends of the coarse and fine filter screens.

[0016] Optionally, the water-cooled circulation pipe is a spiral hollow pipe, and the inner walls of the dust removal pipe, detection pipe, and filling pipe are all coated with a ceramic coating.

[0017] Optionally, a temperature sensor is installed at the rear end of the top of the dust removal pipe, and a pressure sensor is installed at the rear end of both the top of the dust removal pipe and the rear end of the bottom of the detection pipe.

[0018] Optionally, the connection between the filling pipe and the discharge pipe is tapered, the filling pipe contains activated carbon particles, and the interior of the filling pipe contains several material distribution plates.

[0019] The beneficial effects of this invention are:

[0020] This invention, by setting up a dust removal pipe, a filter component, and an adsorption component to work together, can adsorb and treat the exhaust gas of a ship engine. The coarse and fine filter screens can intercept large particulate impurities such as carbon soot particles and unburned fuel particles in the exhaust gas. At the same time, it can reduce the temperature of the exhaust gas, so that the temperature of the exhaust gas reaches the optimal adsorption temperature range of activated carbon, which can improve the adsorption effect.

[0021] By setting up an electric telescopic rod, sealing plate, activated carbon plate, and sliding plate to work together, the movable blocks can adsorb and perform secondary filtration on the filtered and cooled smoke and dust to remove smaller particles. During use, the pressure sensor can detect the pressure data and adjust different movable blocks to adsorb alternately. After the adsorption is saturated, the blocks can be moved to the material replacement port for replacement, which is convenient for maintenance and reduces the impact on adsorption efficiency.

[0022] By setting up a packing pipe, a discharge pipe, and a barrier net in coordination, the packing pipe can transport activated carbon particles of suitable size to the space between two movable blocks, which facilitates feeding and improves the adsorption effect. The discharge pipe can periodically discharge the ineffective activated carbon, which is convenient for collection and subsequent treatment. After feeding, the packing pipe can be connected to an emergency pipeline, which can facilitate the emergency discharge of exhaust gas to a safe location in case of failure, and prevent exhaust gas from accumulating on the ship.

[0023] By setting up a detection tube in conjunction with the adsorption assembly, the quality of the flue gas can be detected by a gas monitoring sensor during the adsorption of dust. If the flue gas is substandard, the exhaust fan and solenoid valve are closed, and air is blown into the detection tube through the air spray pipe to blow the flue gas back to the adsorption assembly for adsorption. This increases the contact time between the activated carbon particles in the activated carbon plate and discharge pipe and the flue gas, so as to ensure thorough adsorption and filtration. After detection, the flue gas is discharged through the solenoid valve. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a ship exhaust gas treatment device based on activated carbon according to the present invention.

[0025] Figure 2 This invention relates to a ship exhaust gas treatment device based on activated carbon. Figure 1 Top view of the structure;

[0026] Figure 3 This is a structural exploded view of the activated carbon plate and mounting frame in a ship exhaust gas treatment device based on activated carbon according to the present invention.

[0027] Figure 4 This is a cross-sectional view of the internal structure of a dust removal pipe in a ship exhaust gas treatment device based on activated carbon according to the present invention.

[0028] Figure 5 This invention relates to a ship exhaust gas treatment device based on activated carbon. Figure 4 Enlarged view of area A;

[0029] Figure 6 This is a cross-sectional view of the connection between the mounting frame and the movable block in a ship exhaust gas treatment device based on activated carbon according to the present invention.

[0030] Figure 7 This is a cross-sectional view of the internal structure of the mounting frame and sealing box in a ship exhaust gas treatment device based on activated carbon according to the present invention.

[0031] In the diagram: 1. Dust removal pipe; 2. Air inlet connection pipe; 3. Filter assembly; 301. Protective shell; 302. Water-cooled circulation pipe; 303. Liquid inlet; 304. Liquid outlet; 305. Mounting ring; 306. Coarse filter screen; 307. Fine filter screen; 308. Rotating rod; 309. Fan blade; 3010. Connecting plate; 3011. Cleaning plate; 4. Temperature sensor; 5. Pressure sensor; 6. Adsorption assembly; 601. Mounting frame; 602. Movable block; 60 3. Activated carbon plate; 604. Sliding plate; 605. Sealing box; 606. Electric telescopic rod; 607. Material changing port; 608. Sealing plate; 609. Fixing nut; 6010. Sealing ring; 6011. Packing tube; 6012. Discharge pipe; 6013. Barrier mesh; 6014. Material distribution inclined plate; 7. Detection tube; 8. Gas monitoring sensor; 9. Filter cotton plate box; 10. Air spray pipe; 11. Exhaust fan; 12. Exhaust pipe; 13. Solenoid valve. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-7 As shown, a ship exhaust gas treatment device based on activated carbon includes a dust removal pipe 1, an air inlet connection pipe 2 connected to the front end of the dust removal pipe 1, and a filter assembly 3 disposed inside the dust removal pipe 1. The filter assembly 3 has a protective shell 301 and two mounting rings 305, and the protective shell 301 is installed at the front position of the outer ring of the dust removal pipe 1.

[0034] The protective shell 301 is equipped with a water-cooled circulation pipe 302. The inner ring of the water-cooled circulation pipe 302 is fitted to the outer wall of the dust removal pipe 1. The bottom of the protective shell 301 is connected to a liquid inlet 303 that is compatible with the water-cooled circulation pipe 302. The top of the protective shell 301 is connected to a liquid outlet 304, which is connected to the end of the water-cooled circulation pipe 302 away from the liquid inlet 303. Two mounting rings 305 are installed at the front of the dust removal pipe 1. The front end of the mounting rings 305 is equipped with a coarse filter 306 and a fine filter 307 by mounting bolts. A rotating rod 308 is rotatably installed at the center of the front and rear ends of the coarse filter 306 and the fine filter 307. A fan blade 309 is provided at the front of the outer ring of the rotating rod 308.

[0035] An adsorption component 6 is provided at the rear end of the dust removal pipe 1. The adsorption component 6 has a filling tube and two mounting frames 601. The two mounting frames 601 are installed at the front and rear ends of the filling tube, and the front end of one of the mounting frames 601 is connected to the rear end of the dust removal pipe 1. The mounting frame 601 has two movable slots inside, and movable blocks 602 are slidably installed in each of the two movable slots. Activated carbon plates 603 are installed inside the movable blocks 602 by fixing bolts. Two sealing boxes 605 are installed at the top of the mounting frame 601, and sliding plates 604 are slidably installed inside the sealing boxes 605. The bottom end of the sliding plate 604 is connected to the rear position of the outer ring of the movable block 602. An electric telescopic rod 606 is installed at the front end of the sealing box 605, and the end of the push rod of the electric telescopic rod 606 is connected to the sliding plate 604.

[0036] As a technical optimization of the present invention, the front and rear ends of the mounting frame 601 are provided with material changing ports 607 that are compatible with the movable block 602 on the side away from the dust removal pipe 1. The front and rear ends of the mounting frame 601 are detachably installed with sealing plates 608 that are compatible with the material changing ports 607 by fixing nuts 609.

[0037] By controlling the retraction of the push rod of the electric telescopic rod 606, the saturated activated carbon plate 603 can be moved to the material exchange port 607 for disassembly.

[0038] As a technical optimization of the present invention, a barrier net 6013 is provided at both the front and rear ends of the filling tube, a filler tube 6011 is connected to the top of the filling tube, and a discharge tube 6012 that is compatible with the filler tube 6011 is connected to the bottom of the filling tube.

[0039] By opening the discharge valve on the discharge pipe 6012, the saturated activated carbon particles in the filling tube will leak out from the discharge pipe 6012 until the tube is empty. Then, the discharge pipe 6012 can be closed, and the feed valve on the filling tube 6011 can be opened. Afterward, personnel can add suitable and brand-new activated carbon particles into the filling tube.

[0040] As a technical optimization of the present invention, a detection tube 7 is connected to the rear end of one of the mounting frames 601, a filter cotton plate box 9 is connected to the rear end of the detection tube 7, an exhaust fan 11 is connected to the end of the filter cotton plate box 9 away from the detection tube 7, and an exhaust pipe 12 is connected to the rear end of the exhaust fan 11.

[0041] When the exhaust gas quality does not meet the emission standards, the exhaust fan 11 and solenoid valve 13 will be shut off to prevent the exhaust gas that does not meet the emission standards from being discharged. After the gas monitoring sensor 8 detects that the flue gas meets the emission standards, the solenoid valve 13 will be opened and the exhaust fan 11 will be started to quickly discharge the treated flue gas.

[0042] As a technical optimization of the present invention, an electromagnetic valve 13 is provided at the connection between the exhaust fan 11 and the exhaust pipe 12, a gas monitoring sensor 8 is provided at the top end of the detection pipe 7, a blower pipe 10 is provided at the rear side of the detection pipe 7, and a jet nozzle adapted to the activated carbon plate 603 is provided at one end of the blower pipe 10 that extends into the detection pipe 7.

[0043] By connecting the air jet pipe 10 to an external air jet pipe, clean air can be delivered to the detection pipe 7 and sprayed out by opening the air valve. This blows the flue gas into the adsorption component 6, helping the flue gas to contact the adsorption component 6 and improve the adsorption efficiency.

[0044] As a technical optimization of the present invention, the sides of the two movable blocks 602 that are close to each other are fitted with the mounting frame 601, and a sealing ring 6010 is provided at the connection between the mounting frame 601 and the movable blocks 602. The activated carbon plate 603 is detachably connected to the movable blocks 602 by fixing bolts.

[0045] The sealing ring 6010 reduces the probability of exhaust gas leakage, and the activated carbon plate 603 and the movable block 602 are detachably connected for easy disassembly and replacement.

[0046] As a technical optimization of the present invention, the outer ring of the rotating rod 308 is fixedly connected to the front end of the coarse filter screen 306 and the fine filter screen 307. The two connecting plates 3010 are equipped with cleaning plates 3011 by connecting bolts, and the rear ends of the two cleaning plates 3011 are respectively attached to the front ends of the coarse filter screen 306 and the fine filter screen 307.

[0047] The coarse filter 306 and fine filter 307 can intercept large particulate impurities such as carbon soot particles and unburned fuel particles in the exhaust gas. The cleaning plate 3011 is attached to the coarse filter 306 and fine filter 307 and rotates continuously to clean their windward surfaces, reducing the probability of blockage by large particulate impurities.

[0048] As a technical optimization of the present invention, the water-cooled circulation pipe 302 is a spiral hollow pipe, and the inner walls of the dust removal pipe 1, the detection pipe 7, and the filling pipe are all provided with a ceramic coating.

[0049] The water-cooled circulation pipe 302 can reduce the exhaust gas temperature, bringing it to the optimal adsorption temperature range of activated carbon, which facilitates improved adsorption effect. The spiral hollow pipe can also improve the contact effect, and the ceramic coating can reduce friction between the exhaust gas and the pipe.

[0050] As a technical optimization of the present invention, a temperature sensor 4 is installed at the rear end of the top of the dust removal pipe 1, and a pressure sensor 5 is installed at the rear end of the top of the dust removal pipe 1 and the rear end of the bottom of the detection pipe 7.

[0051] The temperature and pressure of the exhaust gas can be monitored by temperature sensor 4 and pressure sensor 5, and different moving blocks 602 can be adjusted to perform alternating adsorption. Pressure sensor 5 can be a high-sensitivity sensor, such as Sensors Expert's PT124B-210, and temperature sensor 4 can be Rosemount's Pt100.

[0052] As a technical optimization of the present invention, the connection between the filling pipe and the discharge pipe 6012 is tapered, the filling pipe contains activated carbon particles, and the filling pipe contains several material spreading inclined plates 6014.

[0053] The inclined plate 6014 can be used to distribute the activated carbon particles to prevent them from clumping together directly below the packing tube 6011, thereby improving the adsorption effect of the activated carbon particles.

[0054] In use, valves are installed on each pipe, which will not be described in detail here. The dust removal pipe 1, detection pipe 7, adsorption component 6, filter component 3 and other components can be installed in a suitable treatment position with the help of existing brackets. Then, the air inlet connection pipe 2 can be connected to the ship's exhaust gas discharge pipe to transport the exhaust gas into the dust removal pipe 1. The liquid inlet 303 is connected to the ship's cooling water system, and the liquid outlet 304 is connected to the circulating water pump to circulate the cooling water to the water-cooled circulation pipe 302. After the exhaust gas enters the dust removal pipe 1, the exhaust gas in the dust removal pipe 1 can be cooled by the water-cooled circulation pipe 302 so that the exhaust gas temperature can be controlled at the optimal adsorption temperature of activated carbon.

[0055] The flue gas first comes into contact with the coarse filter 306 and the fine filter 307. Through the coarse filter 306 and the fine filter 307, large particulate impurities such as carbon soot particles and unburned fuel particles in the exhaust gas can be intercepted and filtered. Then the filtered and cooled exhaust gas comes into contact with the activated carbon plate 603 to adsorb and filter small particulate impurities and harmful gases in the exhaust gas. After that, the exhaust gas passes through the first mounting frame 601 and comes into contact with the activated carbon particles in the barrier net 6013 for secondary adsorption.

[0056] During the adsorption process, the exhaust gas will enter the detection tube 7. Since the adsorption effect of activated carbon is directly proportional to the contact time, the longer the contact time, the better the adsorption effect. At this time, the exhaust gas quality can be detected by the gas monitoring sensor 8. If the exhaust gas quality does not meet the emission standards, the exhaust fan 11 and the solenoid valve 13 will be shut off to prevent the exhaust gas that does not meet the emission standards from being discharged.

[0057] Once the gas monitoring sensor 8 detects that the flue gas meets the emission standards, the control solenoid valve 13 is opened and the exhaust fan 11 is started to quickly discharge the treated flue gas. This step can be repeated to adsorb the exhaust gas. If the standards are not met, the blower pipe 10 can be connected to an external blower pipe. Then, by opening the air valve, clean air can be delivered to the detection pipe 7 and blown into the adsorption component 6 to help the flue gas contact the adsorption component 6 and improve the adsorption efficiency.

[0058] Furthermore, during exhaust gas delivery, the exhaust gas comes into contact with the fan blade 309, which drives the fan blade 309 to rotate continuously. Since the fan blade 309 is mounted on the rotating rod 308, it can drive the rotating rod 308 to rotate. The rotation of the rotating rod 308 can drive the cleaning plate 3011 to rotate in contact with the coarse filter screen 306 and the fine filter screen 307, so as to clean their windward surfaces and reduce the probability of large particles clogging them.

[0059] Meanwhile, two activated carbon plates 603 are installed in each of the two mounting frames 601 via movable blocks 602, and a pressure sensor 5 is installed in the dust removal pipe 1. The pressure sensor 5 can detect the pressure in the dust removal pipe 1. When one of the activated carbon plates 603 gradually becomes saturated, its resistance will gradually increase, and the pressure will rise accordingly. When the pressure reaches the set alarm value, the push rod of one of the electric telescopic rods 606 can be controlled to retract, so as to move the saturated activated carbon plate 603 to the material exchange port 607, while the push rod of the other electric telescopic rod 606 will extend, so as to push the new activated carbon plate 603 between the dust removal pipe 1 and the detection pipe 7 for the adsorption treatment of the exhaust gas.

[0060] Afterwards, personnel can use tools to remove the sealing plate 608 and then remove the saturated activated carbon plate 603 from the movable block 602 for replacement, so as to enable automatic adjustment. At the same time, the saturated activated carbon plate 603 can be moved to the maintenance position, and the service life and adsorption efficiency of the activated carbon can also be evaluated based on the pressure change data measured at the pressure sensor 5.

[0061] If, after replacement, the pressure sensor 5 detects that the pressure inside the dust removal pipe 1 is still relatively high, the external collection pipe can be connected to the discharge pipe 6012. Then, the discharge valve on the discharge pipe 6012 can be opened. At this time, the activated carbon particles that are saturated with adsorption in the filling pipe will leak out from the discharge pipe 6012 until they are emptied. Then, the discharge pipe 6012 can be closed, and the feed valve on the packing pipe 6011 can be opened. Afterward, personnel can add suitable and brand-new activated carbon particles into the packing pipe. During the addition process, the set material distribution plate 6014 can play a material distribution role to prevent the activated carbon particles from accumulating and clumping directly below the packing pipe 6011, thereby improving the uniformity of addition. After addition, the brand-new activated carbon particles have less resistance and will not cause significant interference to the exhaust gas flow. At this time, the pressure will drop accordingly.

[0062] Furthermore, after the addition of activated carbon granules, the packing tube 6011 can be connected to the external emergency exhaust pipe. In case of malfunction or other emergency, the packing tube 6011 can be manually opened to discharge the exhaust gas in the dust removal pipe 1 and the detection pipe 7 to a safe location, thus preventing the exhaust gas from accumulating on the ship and causing danger.

[0063] Furthermore, the display and control components and modules used in the aforementioned electric telescopic rod 606, temperature sensor 4, pressure sensor 5, gas monitoring sensor 8, solenoid valve 13, and exhaust fan 11 are all existing technologies, which can be fully implemented by those skilled in the art. The power supply is also common knowledge in the field and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and control program.

[0064] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A ship exhaust gas treatment device based on activated carbon, comprising a dust removal pipe, wherein the front end of the dust removal pipe is connected to an air inlet connection pipe, characterized in that: The dust removal pipe is equipped with a filter assembly inside. The filter assembly has a protective shell and two mounting rings, and the protective shell is installed at the front position of the outer ring of the dust removal pipe. The protective shell is equipped with a water-cooled circulation pipe inside. The inner ring of the water-cooled circulation pipe is fitted to the outer wall of the dust removal pipe. The bottom of the protective shell is connected to a liquid inlet that is compatible with the water-cooled circulation pipe. The top of the protective shell is connected to a liquid outlet, which is connected to the end of the water-cooled circulation pipe away from the liquid inlet. Two mounting rings are respectively installed inside the dust removal pipe at the front position. A coarse filter and a fine filter are installed at the front end of the mounting rings by mounting bolts. A rotating rod is rotatably installed at the front and rear ends of the coarse filter and the fine filter, and a fan blade is provided at the front position of the outer ring of the rotating rod. An adsorption assembly is provided at the rear end of the dust removal pipe. The adsorption assembly has a filling tube and two mounting frames. The two mounting frames are installed at the front and rear ends of the filling tube, and the front end of one of the mounting frames is connected to the rear end of the dust removal pipe. The mounting frame has two movable slots inside, and movable blocks are slidably installed in each of the two movable slots. Activated carbon plates are installed inside the movable blocks by fixing bolts. Two sealing boxes are installed at the top of the mounting frame, and sliding plates are slidably installed inside the sealing boxes. The bottom end of the sliding plate is connected to the rear of the outer ring of the movable block. An electric telescopic rod is installed at the front end of the sealing box, and the end of the push rod of the electric telescopic rod is connected to the sliding plate.

2. The ship exhaust gas treatment device based on activated carbon according to claim 1, characterized in that, The front and rear ends of the mounting frame are provided with material changing ports that are compatible with the movable block on the side away from the dust removal pipe. The front and rear ends of the mounting frame are detachably equipped with sealing plates that are compatible with the material changing ports by fixing nuts.

3. The ship exhaust gas treatment device based on activated carbon according to claim 1, characterized in that, The filling tube is equipped with a barrier mesh at both the front and rear ends. The top end of the filling tube is connected to a filler tube, and the bottom end of the filling tube is connected to a discharge tube that is compatible with the filler tube.

4. The ship exhaust gas treatment device based on activated carbon according to claim 3, characterized in that, One of the mounting frames is connected to a detection tube at its rear end, and a filter cotton plate box is connected to the rear end of the detection tube. An exhaust fan is connected to the end of the filter cotton plate box away from the detection tube, and an exhaust pipe is connected to the rear end of the exhaust fan.

5. A ship exhaust gas treatment device based on activated carbon according to claim 4, characterized in that, A solenoid valve is installed at the connection between the exhaust fan and the exhaust pipe. A gas monitoring sensor is installed at the top of the detection pipe. An air spray pipe is installed at the rear side of the detection pipe, and an air jet head that is compatible with the activated carbon plate is installed at the end of the air spray pipe that extends into the detection pipe.

6. The ship exhaust gas treatment device based on activated carbon according to claim 1, characterized in that, The two movable blocks are attached to each other on one side and fit against the mounting frame. A sealing ring is provided at the connection between the mounting frame and the movable blocks. The activated carbon plate is detachably connected to the movable blocks by fixing bolts.

7. A ship exhaust gas treatment device based on activated carbon according to claim 2, characterized in that, The outer ring of the rotating rod is fixedly connected to the front end of both the coarse and fine filter screens. The two connecting plates are fitted with cleaning plates by connecting bolts, and the rear ends of the two cleaning plates are respectively attached to the front ends of the coarse and fine filter screens.

8. A ship exhaust gas treatment device based on activated carbon according to claim 4, characterized in that, The water-cooled circulation pipe is a spiral hollow tube, and the inner walls of the dust removal pipe, detection pipe, and filling pipe are all coated with ceramic coating.

9. A ship exhaust gas treatment device based on activated carbon according to claim 3, characterized in that, Temperature sensors are installed at the rear end of the top of the dust removal pipe, and pressure sensors are installed at the rear end of both the top of the dust removal pipe and the rear end of the bottom of the detection pipe.

10. A ship exhaust gas treatment device based on activated carbon according to claim 3, characterized in that, The connection between the filling pipe and the discharge pipe is tapered. Activated carbon particles are placed inside the filling pipe, and several material distribution inclined plates are arranged inside the filling pipe.

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