A ship sewage activated carbon purification device

Abstract

This invention relates to the technical field of wastewater treatment and discloses a marine domestic sewage activated carbon purification device. The device includes a wastewater purification unit, a water storage tank mounted on the wastewater purification unit, an activated carbon adsorption unit connected to the water storage tank, a stirring device located on the water storage tank, a dosing mechanism mounted on the wastewater purification unit, and a dosing unit connected to the dosing mechanism. The dosing unit includes an injection valve connected to the dosing mechanism, a connecting pipe mounted on the injection valve, an adjusting component located on the connecting pipe, a mixing component symmetrically arranged on the adjusting component, and a spraying component connected to the mixing component. The entire dosing area of ​​this device is far from the floating oil accumulation zone at the vortex axis, which avoids oil coating of the agent and allows the gas and agent to fully mix and react in the oil-free clean water zone, breaking down oil film barriers to improve agent utilization and wastewater purification uniformity.

Description

Technical Field

[0001] This invention relates to the technical field of wastewater treatment, specifically to an activated carbon purification device for marine domestic sewage. Background Technology

[0002] The activated carbon purification device for marine sewage uses activated carbon as the core purification medium. It removes organic matter, odors, and residual pollutants from sewage through physical adsorption and filtration. It is also equipped with a chemical dosing unit to quantitatively add purification agents, achieving pretreatment flocculation and sedimentation to enhance the decontamination effect. It adopts a closed structure adapted to marine working conditions, which can adapt to the harsh environment of ship rolling, swaying, and varying humidity and salt spray. It is not prone to clogging and failure. It does not require complex electrical control intervention and can achieve stable sewage flow purification through a purely mechanical flow channel. The overall operation and maintenance is simple and complies with the environmental emission standards for ships.

[0003] However, existing sewage treatment equipment still has some problems. In order to improve the adsorption of activated carbon, existing sewage treatment equipment adds chemicals in the pretreatment step to treat oil stains in sewage. However, during the chemical dosing process, the added chemicals may come into contact with the oil stains, causing the chemicals to be coated by the oil stains. The coated chemicals are difficult to contact with sewage, resulting in the failure of sewage treatment.

[0004] Therefore, how to prevent the chemicals from being coated with oil stains and causing the wastewater treatment work to fail is a problem that needs to be solved. Summary of the Invention

[0005] This invention provides an activated carbon purification device for marine sewage to solve the aforementioned problems in the prior art.

[0006] A marine sewage activated carbon purification device includes:

[0007] Wastewater purification equipment, a water storage tank installed on the wastewater purification equipment, an activated carbon adsorption device connected to the water storage tank, a stirring device located on the water storage tank, a dosing mechanism installed on the wastewater purification equipment, and a dosing unit connected to the dosing mechanism.

[0008] The dosing unit includes a dosing valve connected to the dosing mechanism, a connecting pipe disposed on the dosing valve, an adjusting component located on the connecting pipe, a mixing component symmetrically disposed on the adjusting component, and a spraying component connected to the mixing component;

[0009] The connecting pipe is inserted into the water storage tank, and the two mixing components are connected to the two outlets of the injection valve through the injection pipe; the dosing mechanism is existing technology.

[0010] Furthermore, the adjustment assembly includes a fixing ring fixedly mounted on the connecting pipe, a rotating shaft disposed on and connected to the fixing ring, a rotating motor connected to one of the rotating shafts and disposed on the fixing ring, a transmission component for connecting the two rotating shafts, and a slider disposed on the transmission component;

[0011] The fixed ring is provided with an arc-shaped limiting groove in the circumferential direction, and the slider is located in the limiting groove and is slidably connected to the limiting groove.

[0012] Furthermore, the transmission component includes a swing rod disposed on the rotating shaft, and a rotating rod for connecting the swing rod;

[0013] The hybrid component is connected to the rotating rod;

[0014] The rotating rod has a cross-shaped structure, with its two free ends connected to two sliders respectively;

[0015] As the rotary motor operates, the slider swings on the limit groove through the set transmission components, and the mixing component rotates during the movement of the slider to adjust the spray angle of the agent.

[0016] Furthermore, the mixing assembly includes a mixing seat connected to the rotating rod, a guide seat disposed in the mixing seat, the guide seat dividing the interior area of ​​the mixing seat into a first area and a second area, a support rod connected to the guide seat and located in the first area, an adjustment seat connected to the support rod, an adjustment knob connected to the adjustment seat and screwed to the mixing seat, and a drug inlet disposed in the second area.

[0017] The adjusting seat is provided with an air injection hole, which is connected to the air delivery end of the air pump;

[0018] The spraying assembly is connected to the first region.

[0019] Furthermore, the guide seat is a tubular structure, and a partition block is provided in the middle of the guide seat so that its cross-section forms an H-shaped structure, wherein the portion of the partition block facing the second region is provided with a limiting hole.

[0020] Furthermore, the guide seat is provided with a rectangular air guide groove in the circumferential direction parallel to the axis of the guide seat, and the air guide groove is used to connect the first area and the injection assembly;

[0021] The guide seat is also provided with a connecting hole in the circumferential direction that communicates with the second region. The connecting hole is formed by a straight line segment, an arc segment and the top of the guide seat, so that the area of ​​the connecting hole and the spray assembly can be adjusted by rotating the adjustment knob.

[0022] Furthermore, the drug inlet includes a sealing seat screwed to the mixing seat and located in the second region, an air outlet rod passing through the sealing seat and movably connected to the sealing seat, and a telescopic cylinder connected to the air outlet rod;

[0023] The mixing seat is provided with a drug inlet, and the drug injection tube is set at the drug inlet for delivering the drug to the second area;

[0024] The other end of the air outlet rod is inserted into the limiting hole.

[0025] Furthermore, a first space is pre-set between the screw connection position of the sealing seat and the mixing seat and the partition block, and the sealing seat is provided with a discharge port communicating with the first space;

[0026] The vent rod is shaped like a rugby ball, and the sealing seat is elastic.

[0027] Furthermore, the injection assembly includes an air intake pipe disposed on the mixing seat, a mounting seat disposed inside the air intake pipe and connected to the air intake pipe, a first air passage pre-formed between the outer wall of the mounting seat and the inner wall of the air intake pipe, and a second air passage opened in the circumference of the air intake pipe and communicating with the first air passage.

[0028] Furthermore, the injection assembly also includes a return spring disposed in the mounting base, an abutment seat connected to the return spring, and a piston disposed on the abutment seat and abutting against the intake pipe;

[0029] The mounting base is provided with a third airway that communicates with the first airway.

[0030] Beneficial Effects: This invention discloses an activated carbon purification device for marine sewage. To prevent the agent from being coated with oil stains and causing sewage treatment failure, this device is equipped with a stirring device, an adjusting component, and a spraying component. When the agent needs to be injected, the stirring device causes the sewage in the storage tank to rotate and form a vortex. Due to the presence of the vortex, the oil stains on the sewage will be located at the center of the vortex. Then, the adjusting component starts to work. The moving adjusting component enables the spraying component to move in the limiting groove and rotate. During the formation of the vortex, the water level of the sewage near the inner wall of the storage pipe will rise, thereby completing the agent injection. This avoids the agent coming into contact with the oil stains in the sewage. At the same time, it eliminates the need for the injection tube to penetrate the oil layer for injection, avoiding the adhesion of oil stains and preventing oil stains from remaining at the injection tube opening and coating the agent. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a marine sewage activated carbon purification device according to the present invention;

[0032] Figure 2 This is a schematic diagram of the drug delivery unit structure of the present invention;

[0033] Figure 3 This is a top view of the adjustment component of the present invention;

[0034] Figure 4 This is a schematic diagram of the adjustment component of the present invention;

[0035] Figure 5 This is a schematic diagram of the hybrid component of the present invention;

[0036] Figure 6 This is a cross-sectional view of the guide seat of the present invention;

[0037] Figure 7 This is a schematic diagram of the guide seat structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the sealing seat structure of the present invention;

[0039] Figure 9 This is a schematic diagram of the spray assembly structure of the present invention;

[0040] Figure 10 This is a schematic diagram of the piston structure of the present invention.

[0041] Reference numerals: 1. Wastewater purification equipment; 2. Water storage tank; 3. Mixing equipment; 4. Dosing mechanism; 5. Dosing unit; 51. Injection valve; 52. Connecting pipe; 53. Adjusting component; 531. Fixing ring; 532. Rotary motor; 533. Swing rod; 534. Rotating rod; 535. Sliding block; 54. Mixing component; 541. Mixing seat; 542. Adjusting knob; 543. Adjusting seat; 544. Air injection hole; 545. Support rod; 546. Guide seat; 547. Telescopic cylinder; 548. Air outlet rod; 549. Sealing seat; 5410. Air guide groove; 5411. Connecting hole; 55. Spraying component; 551. Air inlet pipe; 552. First air passage; 553. Second air passage; 554. Third air passage; 555. Mounting seat; 556. Return spring; 557. Abutment seat; 558. Piston. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0045] This invention discloses an activated carbon purification device for marine sewage, with reference to... Figures 1-10 ,include:

[0046] Wastewater purification equipment 1, a water storage tank 2 installed on the wastewater purification equipment 1, an activated carbon adsorption device connected to the water storage tank 2, a stirring device 3 located on the water storage tank 2, a dosing mechanism 4 installed on the wastewater purification equipment 1, and a dosing unit 5 connected to the dosing mechanism 4; the dosing unit 5 includes an injection valve 51 connected to the dosing mechanism 4, a connecting pipe 52 installed on the injection valve 51, an adjusting component 53 located on the connecting pipe 52, a mixing component 54 symmetrically arranged on the adjusting component 53, and a spraying component 55 connected to the mixing component 54; the connecting pipe 52 is inserted into... The wastewater is introduced into the water storage tank 2. The two mixing components 54 are connected to the two outlets of the injection valve 51 through the injection pipe. The stirring device 3 causes the wastewater in the water storage tank 2 to rotate and form a vortex. Due to the presence of the vortex, the oil stains on the wastewater will be located at the center of the vortex. Then the regulating component 53 starts to work. The moving regulating component 53 enables the spraying component 55 to move in the limiting groove and rotate. During the formation of the vortex, the water level of the wastewater near the inner wall of the water storage pipe will rise, which will submerge the spraying component 55, thereby completing the injection of the agent and preventing the agent from contacting the oil stains in the wastewater.

[0047] The adjusting component 53 includes a fixing ring 531 fixedly mounted on the connecting pipe 52, a rotating shaft disposed on and connected to the fixing ring 531, a rotating motor 532 connected to one of the rotating shafts and disposed on the fixing ring 531, a transmission component for connecting the two rotating shafts, and a slider 535 disposed on the transmission component; the fixing ring 531 has an arc-shaped limiting groove on its circumference, and the slider 535 is located in the limiting groove and slidably connected to the limiting groove; the transmission component includes a swing rod 533 disposed on the rotating shaft, and a rotating rod 534 for connecting the swing rod 533; the mixing component 54 is connected to the rotating rod 534; the rotating rod 534 has a cross-shaped structure, wherein the two free ends are respectively connected to the two sliders 535; as the rotating motor 532 operates, the slider 535 swings on the limiting groove through the transmission component, and the mixing component 54 rotates during the movement of the slider 535, thereby adjusting the spray angle of the agent;

[0048] When the spray position and spray angle of the spray assembly 55 need to be adjusted, the rotary motor 532 starts to work. The rotating motor 532 drives the rotating shaft to rotate, which in turn drives the swing rod 533 to move. The swing rod 533 then drives the rotating rod 534 to move, which in turn drives the slider 535 to move in the limiting groove. As the slider 535 approaches the two ends of the limiting groove, the rotation angle of the rotating rod 534 increases. That is, when the slider 535 is close to one end of the limiting groove, and then abuts against and moves away from one end of the limiting groove, the rotating rod 534 drives the mixing assembly 54 and the spray assembly 55 to rotate. When the slider 535 is in the middle area of ​​the limiting groove, the spray assembly 55 can rotate slightly. Thus, the spray area and water entry angle of the agent can be changed by the set adjustment component 53 to complete the agent addition work.

[0049] Relying on the arc-shaped limiting groove for limiting and guiding, the slider 535 can be moved in the middle area of ​​the limiting groove to achieve small-amplitude fine adjustment of the spray component 55. When it is close to both ends of the limiting groove, it can achieve large-angle deflection, forming a dual mode of small-angle fine adjustment and large-angle wide-range adjustment. The spray posture can be flexibly matched according to the sewage turbidity and water level, and it can adapt to the dosing needs of different liquid levels and different sewage loads in the marine water storage tank 2.

[0050] The mixing assembly 54 includes a mixing seat 541 connected to the rotating rod 534, a guide seat 546 disposed in the mixing seat 541, the guide seat 546 dividing the interior area of ​​the mixing seat 541 into a first area and a second area, a support rod 545 connected to the guide seat 546 and located in the first area, an adjusting seat 543 connected to the support rod 545, an adjusting knob 542 connected to the adjusting seat 543 and screwed to the mixing seat 541, and a drug inlet disposed in the second area; the adjusting seat 543 is provided with an air injection hole 544. The air injection port 544 is connected to the air delivery end of the air pump; the injection assembly 55 is connected to the first region; the guide seat 546 is provided with a rectangular air guide groove 5410 parallel to the axial direction of the guide seat 546 in the circumferential direction, and the air guide groove 5410 is used to connect the first region and the injection assembly 55; the guide seat 546 is also provided with a connecting hole 5411 connected to the second region in the circumferential direction, and the connecting hole 5411 is formed by a straight line segment, an arc segment and the top of the guide seat 546, so that the area of ​​the connecting area between the connecting hole 5411 and the injection assembly 55 can be adjusted by rotating the adjustment knob 542;

[0051] When gas injection is required, the oil stains in the injection area need to be moved away from the injection position. At this time, through the existing air pump and air pipe, the gas enters the mixing seat through the air injection hole 544. Then the gas can be located in the first area, and the gas in the first area can enter the spray assembly 55 along the air guide groove 5410, thereby completing the gas blowing work. Through the blowing of the gas, the oil stains are moved away, avoiding the oil stains from encapsulating the agent during the injection process, which would make it difficult for the agent to react with the sewage.

[0052] The guide seat 546 is a tubular structure, and a partition block is provided in the middle of the guide seat 546 so that its cross-section forms an H-shaped structure, wherein the part of the partition block facing the second region is provided with a limiting hole.

[0053] The drug inlet includes a sealing seat 549 screwed to the mixing seat 541 and located in the second region, an air outlet rod 548 passing through the sealing seat 549 and movably connected to the sealing seat 549, and a telescopic cylinder 547 connected to the air outlet rod 548; the mixing seat 541 is provided with a drug inlet, and the drug injection tube is provided at the drug inlet for delivering the drug to the second region; the other end of the air outlet rod 548 is inserted into a limiting hole; a first space is preset between the screwed position of the sealing seat 549 and the mixing seat 541 and the partition block, and the sealing seat 549 is provided with a discharge port communicating with the first space; the air outlet rod 548 is rugby ball shaped, and the sealing seat 549 is elastic;

[0054] When the injection of the agent is required, the adjustment knob 542 is turned to change the facing area between the connecting hole 5411 and the spray assembly 55. During the gas injection operation, the gas can attract the agent (powder) through the connecting hole 5411, thus completing the injection operation. When only the oil blowing operation is required, the telescopic cylinder 547 starts to work. The moving telescopic cylinder 547 can move the air rod 548. At this time, the air rod 548 can abut against the sealing seat 549, thereby blocking the flow channel of the agent. Only gas can be sprayed out from the spray assembly 55, preventing a lot of oil stains from floating in the agent addition area and preventing oil stains from encapsulating the agent, which would cause the agent addition operation to fail.

[0055] The injection assembly 55 includes an air intake pipe 551 disposed on the mixing seat 541, a mounting seat 555 disposed inside and connected to the air intake pipe 551, a first air passage 552 pre-formed between the outer wall of the mounting seat 555 and the inner wall of the air intake pipe 551, and a second air passage 553 opened in the circumference of the air intake pipe 551 and communicating with the first air passage 552; the injection assembly 55 also includes a return spring 556 disposed in the mounting seat 555, an abutment seat 557 connected to the return spring 556, and a piston 558 disposed on the abutment seat 557 and abutting against the air intake pipe 551; the mounting seat 555 is provided with a third air passage 554 communicating with the first air passage 552;

[0056] During the initial gas injection process, due to the small amount of gas, the gas can be discharged from the second air passage 553 through the first air passage 552. Then, as the amount of gas increases, the excess gas can overcome the elastic force of the return spring 556, thereby causing the piston 558 to move away from the air inlet pipe 551. At this time, a large amount of gas is ejected circumferentially from the air inlet pipe 551, and the ejected gas can carry the agent into the sewage, thereby completing the purification of the sewage.

[0057] When the mixing device 3 mixes the marine sewage in the storage tank 2, a stable vortex is formed in the water. Light oil stains and floating sludge in the sewage will spontaneously gather at the surface of the vortex axis. This device adopts a staged dosing mode, which first injects the chemical through the second channel and then sprays it along the axis of the return spring 556. In the initial gas injection stage, the gas volume is small, and the gas carrying the chemical is only output through the second channel in a directional manner. The chemical is vertically sent into the lower layer of the water along the clear water area around the vortex, deliberately avoiding the oil sludge accumulation area in the center of the vortex. This prevents the chemical from directly contacting the surface oil stains, preventing the oil film from wrapping the chemical and causing agglomeration and deactivation, and ensuring that the chemical's own reactivity is not interfered with by the oil sludge.

[0058] As the gas supply gradually increases, the gas pressure can overcome the elastic force of the return spring 556 and push the piston 558 to move, so that the gas-powder mixture is mainly sprayed and diffused outward along the axis of the return spring 556.

[0059] This device first pre-treats the bottom wastewater by delivering targeted chemicals deep into the water body through the second channel. Then, it sprays along the axis of the return spring 556 to achieve wide-area diffusion in the lower and middle layers of the water body, forming a three-dimensional chemical delivery system that combines targeted deep-penetration with axial diffusion across the entire area. Throughout the entire chemical delivery process, the area is far from the oil accumulation zone at the vortex axis, preventing oil from coating the chemicals. Simultaneously, the gas and chemicals are allowed to fully mix and react in the oil-free clean water area, eliminating the barrier effect of an oil film. This significantly improves the utilization rate of the chemicals and the uniformity of wastewater purification. It also reduces the impurities and oil load on the downstream activated carbon adsorption equipment, making it suitable for special operating conditions such as ship swaying and the easy accumulation of oil.

[0060] Working principle description: When it is necessary to adjust the spray position and spray angle of the spray assembly 55, the rotary motor 532 starts to work. The rotating motor 532 drives the rotating shaft to rotate, which in turn drives the swing rod 533 to move. The swing rod 533 then drives the rotating rod 534 to move, which in turn drives the slider 535 to move in the limiting groove. As the slider 535 approaches the two ends of the limiting groove, the rotation angle of the rotating rod 534 increases. That is, when the slider 535 is close to one end of the limiting groove, and then abuts against and moves away from one end of the limiting groove, the rotating rod 534 drives the mixing assembly 54 and the spray assembly 55 to rotate. When the slider 535 is in the middle area of ​​the limiting groove, the spray assembly 55 can rotate slightly. Thus, the spray area and water entry angle of the agent can be changed by the set adjustment component 53 to complete the agent addition work.

[0061] When gas injection is required, the oil stains in the injection area need to be moved away from the injection position. At this time, the gas enters the mixing seat through the gas injection hole 544 through the existing air pump and air pipe. The gas can then be located in the first area. The gas in the first area can then enter the spray assembly 55 through the air guide groove 5410, thereby completing the gas blowing work. Through the blowing of the gas, the oil stains are moved away, avoiding the oil stains from encapsulating the agent during the injection process, which would make it difficult for the agent to react with the sewage.

[0062] When the injection of the agent is required, the adjustment knob 542 is turned to change the facing area between the connecting hole 5411 and the spray assembly 55. During the gas injection operation, the gas can attract the agent (powder) through the connecting hole 5411, thus completing the injection operation. When only the oil blowing operation is required, the telescopic cylinder 547 starts to work. The moving telescopic cylinder 547 can move the air rod 548. At this time, the air rod 548 can abut against the sealing seat 549, thereby blocking the flow channel of the agent. Only gas can be sprayed out from the spray assembly 55, preventing a lot of oil stains from floating in the agent addition area and preventing oil stains from encapsulating the agent, which would cause the agent addition operation to fail.

[0063] During the initial gas injection process, due to the small amount of gas, the gas can be discharged from the second air passage 553 through the first air passage 552. Then, as the amount of gas increases, the excess gas can overcome the elastic force of the return spring 556, thereby causing the piston 558 to move away from the air inlet pipe 551. At this time, a large amount of gas is ejected circumferentially from the air inlet pipe 551, and the ejected gas can carry the agent into the sewage, thereby completing the sewage purification work.

[0064] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A marine sewage activated carbon purification device, characterized in that, include: Wastewater purification equipment (1), a water storage tank (2) installed on the wastewater purification equipment (1), an activated carbon adsorption device connected to the water storage tank (2), a stirring device (3) located on the water storage tank (2), a dosing mechanism (4) installed on the wastewater purification equipment (1), and a dosing unit (5) connected to the dosing mechanism (4). The dosing unit (5) includes a dosing valve (51) connected to the dosing mechanism (4), a connecting pipe (52) disposed on the dosing valve (51), an adjusting component (53) located on the connecting pipe (52), a mixing component (54) symmetrically disposed on the adjusting component (53), and a spraying component (55) connected to the mixing component (54). The connecting pipe (52) is inserted into the water storage tank (2), and the two mixing components (54) are connected to the two outlets of the injection valve (51) through the injection pipe.

2. The activated carbon purification device for marine domestic sewage according to claim 1, characterized in that: The adjustment assembly (53) includes a fixing ring (531) fixedly mounted on the connecting pipe (52), a rotating shaft disposed on and connected to the fixing ring (531), a rotary motor (532) connected to one of the rotating shafts and disposed on the fixing ring (531), a transmission component for connecting the two rotating shafts, and a slider (535) disposed on the transmission component. The fixed ring (531) has an arc-shaped limiting groove in the circumferential direction, and the slider (535) is located in the limiting groove and is slidably connected to the limiting groove.

3. The activated carbon purification device for marine domestic sewage according to claim 2, characterized in that: The transmission component includes a swing rod (533) disposed on the rotating shaft, and a rotating rod (534) for connecting the swing rod (533). The mixing component (54) is connected to the rotating rod (534); The rotating rod (534) has a cross-shaped structure, with its two free ends connected to two sliders (535) respectively; As the rotary motor (532) operates, the slider (535) is oscillating on the limit groove through the set transmission component, and the mixing component (54) rotates during the movement of the slider (535) to adjust the spray angle of the agent.

4. The activated carbon purification device for marine domestic sewage according to claim 3, characterized in that: The mixing assembly (54) includes a mixing seat (541) connected to the rotating rod (534), a guide seat (546) disposed in the mixing seat (541), the guide seat (546) dividing the interior area of ​​the mixing seat (541) into a first area and a second area, a support rod (545) connected to the guide seat (546) and located in the first area, an adjustment seat (543) connected to the support rod (545), an adjustment knob (542) connected to the adjustment seat (543) and screwed to the mixing seat (541), and a drug inlet disposed in the second area; The adjusting seat (543) is provided with an air injection hole (544), which is connected to the air delivery end of the air pump; The spraying assembly (55) is connected to the first region.

5. The activated carbon purification device for marine domestic sewage according to claim 4, characterized in that: The guide seat (546) is a tubular structure. The guide seat (546) has a partition block in the middle to form an H-shaped cross-section. The part of the partition block facing the second region has a limiting hole.

6. The activated carbon purification device for marine domestic sewage according to claim 5, characterized in that: The guide seat (546) is provided with a rectangular air guide groove (5410) in the circumferential direction parallel to the axial direction of the guide seat (546), and the air guide groove (5410) is used to connect the first area and the injection assembly (55). The guide seat (546) is also provided with a connecting hole (5411) in the circumferential direction that communicates with the second region. The connecting hole (5411) is formed by a straight line segment, an arc segment and the top of the guide seat (546), so that the area of ​​the connecting area between the connecting hole (5411) and the spray assembly (55) can be adjusted by rotating the adjustment knob (542).

7. The activated carbon purification device for marine domestic sewage according to claim 6, characterized in that: The drug inlet includes a sealing seat (549) screwed to the mixing seat (541) and located in the second region, an air outlet rod (548) passing through the sealing seat (549) and movably connected to the sealing seat (549), and a telescopic cylinder (547) connected to the air outlet rod (548). The mixing seat (541) is provided with a drug inlet, and the drug injection tube is set at the drug inlet for delivering the drug to the second area; The other end of the air outlet rod (548) is inserted into the limiting hole.

8. The activated carbon purification device for marine domestic sewage according to claim 7, characterized in that: A first space is pre-set between the screw connection position of the sealing seat (549) and the mixing seat (541) and the partition block, and the sealing seat (549) is provided with a discharge port communicating with the first space; The vent rod (548) is rugby ball shaped, and the sealing seat (549) is elastic.

9. The activated carbon purification device for marine domestic sewage according to claim 8, characterized in that: The injection assembly (55) includes an air intake pipe (551) disposed on the mixing seat (541), a mounting seat (555) disposed inside the air intake pipe (551) and connected to the air intake pipe (551), a first air passage (552) is pre-set between the outer wall of the mounting seat (555) and the inner wall of the air intake pipe (551), and a second air passage (553) opened in the circumferential direction of the air intake pipe (551) and communicating with the first air passage (552).

10. The activated carbon purification device for marine domestic sewage according to claim 9, characterized in that: The injection assembly (55) further includes a return spring (556) disposed in the mounting base (555), an abutment (557) connected to the return spring (556), and a piston (558) disposed on the abutment (557) and abutting against the air intake pipe (551). The mounting base (555) is provided with a third air passage (554) that communicates with the first air passage (552).

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