Pollution emission prevention device for ship

Abstract

The utility model discloses an anti-pollution discharge device for a ship, which belongs to the field of ship purification devices, and mainly comprises a collection box, a chemical treatment box, a filtering tank, a chlorine dioxide generator and a disinfection and discharge pool, the collection box is used for crushing, stirring and coarsely filtering excrement, the chemical treatment box is used for oxygenolysis of organic matters through chemical agents and precipitation, and the filtering tank is used for filtering the organic matters; residual pollutants are deeply removed through the filtering tank, pathogens are killed through cooperation of the disinfecting and discharging pool and the chlorine dioxide generator, and finally the sewage is discharged out of the ship through a pipeline. The device is designed aiming at the conditions of limited space, special operation environment and the like of small and medium-sized ships, all units are tightly connected, the layout is reasonable, and the device has the advantages of excellent purification effect, compact structure, simplicity and convenience in operation and maintenance, good cost effectiveness, strong adaptability to ship environment and the like, can effectively treat faeces sewage of sailors, enables the faeces sewage to stably reach the standard and be discharged, and has wide application prospects. The pollution to the marine ecological environment is reduced, and the method has great application value in the field of environmental protection of small and medium-sized ships.

Description

Technical Field

[0001] This utility model relates to the field of ship purification devices, and in particular to a ship pollution prevention and emission control device. Background Technology

[0002] With the development of the global shipping industry, small and medium-sized vessels are increasingly used in marine transportation, fishing, tourism, and other fields. However, if crew wastewater generated during ship operations is discharged directly without proper treatment, it will cause serious pollution to the marine ecological environment.

[0003] Traditional methods of ship waste disposal are relatively simple and inefficient. Some ships simply discharge waste directly into the sea, which contains large amounts of organic matter, pathogens, suspended solids, and other pollutants. This can lead to eutrophication of marine waters, causing ecological disasters such as red tides, threatening the survival and reproduction of marine life, and disrupting the marine ecological balance. At the same time, it may also pose potential risks to the health of coastal residents, for example, through the food chain, leading to diseases from the ingestion of contaminated seafood.

[0004] In recent years, although environmental regulations have become increasingly stringent, placing higher demands on ship wastewater discharge, existing ship wastewater treatment facilities still have many problems. Some devices are bulky and complex in structure, making them difficult to accommodate in the limited space of small and medium-sized ships, and their installation and maintenance costs are high, rendering them uneconomical. In addition, the purification effect of some treatment devices is not ideal, making it difficult to consistently meet increasingly stringent emission standards, especially when treating high-concentration, complex-composition crew wastewater, where the removal efficiency of organic matter, suspended solids, and pathogens is limited.

[0005] In addition, although some biological treatment technologies have good purification effects in theory, biological treatment units face many challenges in the actual operating environment of ships. For example, the growth of microorganisms is greatly affected by factors such as ship swaying, temperature changes, and water quality fluctuations, making it difficult to maintain a stable treatment effect. Moreover, the start-up and commissioning of biological treatment systems are relatively complex and require professional personnel to operate and maintain them, which is difficult to achieve on small and medium-sized ships with limited crew members.

[0006] Therefore, there is an urgent need for a crew waste purification and discharge device that is suitable for small and medium-sized ships, has a compact structure, good purification effect, is easy to operate and has a low cost, so as to meet environmental protection requirements and protect the marine ecological environment. Utility Model Content

[0007] The main objective of this invention is to provide a ship pollution prevention and discharge device that can effectively solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A ship pollution prevention and discharge device includes a collection tank, the inlet of which is connected to the sewage pipe of the ship's toilet, and the collection tank is equipped with a stirring and crushing mechanism inside. The rear end of the collection tank is connected to a chemical treatment tank, and a filter grid is provided at the connection between the two. An oxidant dripping tank and a flocculant dripping tank are installed on the top of the chemical treatment tank, and an inclined plate sedimentation zone is provided at the bottom of the chemical treatment tank. A filter tank is connected to the side of the chemical treatment tank, and a disinfection and discharge pool is connected to the bottom of the filter tank. A chlorine dioxide generator is installed on the top of the disinfection and discharge pool, and the chlorine dioxide generated by the chlorine dioxide generator is filled into the disinfection and discharge pool. A discharge port is provided at the bottom of the disinfection and discharge pool, which extends out of the ship through a pipe for discharge.

[0010] Preferably, the collection box and the chemical treatment box are connected as one piece by welding, and the bottom is fixedly installed to the top of the disinfection and discharge pool by support legs.

[0011] Preferably, a discharge inlet is provided on one side of the top surface of the collection box, the discharge inlet is sealed to the sewage pipe of the ship's toilet, and an inclined plate is provided below the discharge inlet.

[0012] Preferably, the mixing and crushing mechanism includes a mixing rod and a crushing blade. The crushing blade is spirally and symmetrically mounted on the mixing rod. A drive motor is connected to the top of the mixing rod, and the drive motor is fixedly mounted on the top surface of the collection box.

[0013] Preferably, the interior of the oxidant dripping tank and the flocculant dripping tank are respectively filled with calcium hypochlorite solution and flocculant and coagulant aid solution. A drip tube is installed at the bottom of the oxidant dripping tank and the flocculant dripping tank, and several drip heads are evenly installed on each drip tube. The drip heads are connected to the oxidant dripping tank and the flocculant dripping tank respectively through the drip tube.

[0014] Preferably, the bottom of the chemical treatment tank is provided with an inclined plate sedimentation area, and a drain valve is installed on the side. The side of the chemical treatment tank has a liquid outlet above the inclined plate sedimentation area, and the liquid outlet is connected to the filter tank through a liquid outlet pipe.

[0015] Preferably, the filter tank is equipped with a partition, which divides it into an upper activated carbon adsorption zone and a lower sand filtration zone. The bottom of the filter tank is fixed and connected to the interior of the disinfection and discharge pool by a drain pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Each unit has a compact and rational layout, closely connected according to the sewage treatment process. Collection units are placed nearby to reduce transmission obstacles. The overall design fits the space constraints of small and medium-sized vessels, occupying little space, easy to install, requiring no major modifications to the vessel, and making efficient use of space.

[0018] The chemical oxidation and precipitation unit of this device uses chemicals to break down organic matter, breaking down large molecules into smaller ones and precipitating suspended solids, significantly reducing COD and BOD. The activated carbon in the filtration and adsorption unit provides deep purification, adsorbing residual impurities and resulting in clear, transparent water free of discoloration and odor. The chlorine dioxide disinfection unit powerfully inactivates pathogens, ensuring the microbial safety of the discharged water and effectively preventing the spread of disease. Attached Figure Description

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the collection box structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the chemical treatment box structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the back structure of the chemical treatment box of this utility model;

[0023] Figure 5 This is a schematic diagram of the filter tank structure of this utility model.

[0024] In the diagram: 1. Collection tank; 2. Chemical treatment tank; 3. Filter tank; 4. Chlorine dioxide generator; 5. Disinfection and discharge tank; 6. Oxidant dripping tank; 7. Flocculant dripping tank; 8. Discharge pipe; 9. Drain pipe; 10. Support leg; 11. Discharge inlet; 12. Inclined plate; 13. Stirring rod; 14. Drive motor; 15. Crusher; 16. Filter grid; 17. Drip pipe; 18. Drip head; 19. Inclined plate sedimentation zone; 20. Drain valve; 21. Discharge port; 22. Baffle plate; 23. Activated carbon adsorption zone; 24. Sand filtration zone. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1As shown, a ship pollution prevention and discharge device mainly consists of a collection tank 1, a chemical treatment tank 2, a filter tank 3, a chlorine dioxide generator 4, and a disinfection and discharge pool 5. The inlet of the collection tank 1 is connected to the sewage pipe of the ship's toilet, and the collection tank 1 is equipped with a stirring and crushing mechanism. The rear end of the collection tank 1 is connected to a chemical treatment tank 2. The top of the chemical treatment tank 2 is equipped with an oxidant dripping tank 6 and a flocculant dripping tank 7. The bottom of the chemical treatment tank 2 is equipped with an inclined plate sedimentation area 19. The side of the chemical treatment tank 2 is connected to a filter tank 3, and the bottom of the filter tank 3 is connected to a disinfection and discharge pool 5. The top of the disinfection and discharge pool 5 is equipped with a chlorine dioxide generator 4. The chlorine dioxide generated by the chlorine dioxide generator 4 is filled into the disinfection and discharge pool 5. The bottom of the disinfection and discharge pool 5 is equipped with a discharge port, which extends out of the ship through a pipe for discharge.

[0027] In this embodiment, as Figure 2 As shown, a discharge inlet 11 is located on one side of the top surface of the collection box 1. The discharge inlet 11 is sealed to the sewage pipe of the toilet in the cabin. A sloping plate 12 is located below the discharge inlet 11. The mixing and crushing mechanism includes a mixing rod 13 and a crushing blade 15. The crushing blade 15 is spirally and symmetrically installed on the mixing rod 13. A drive motor 14 is connected to the top of the mixing rod 13. The drive motor 14 is fixedly installed on the top surface of the collection box 1. The drive motor 14 is connected to a controller. The controller has a timer program. It starts and stops after 30 seconds each time. At the same time, the controller is linked to the flush button of the toilet in the cabin. Pressing the button will start the controller.

[0028] In this embodiment, as Figures 3-4 As shown, the oxidant dripping tank 6 and the flocculant dripping tank 7 are respectively filled with calcium hypochlorite solution and flocculant and coagulant aid solutions. A drip tube 17 is installed at the bottom of each of the oxidant dripping tank 6 and the flocculant dripping tank 7. Several drip heads 18 are evenly installed on each drip tube 17, and the drip heads 18 are connected to the oxidant dripping tank 6 and the flocculant dripping tank 7 respectively through the drip tube 17. Preferably, the bottom of the chemical treatment tank 2 is provided with an inclined plate sedimentation area 19, and a drain valve 20 is installed on the side. An outlet 21 is opened on the side of the chemical treatment tank 2 above the inclined plate sedimentation area 19, and the outlet 21 is connected to the filter tank 3 through an outlet pipe 8.

[0029] In this embodiment, as Figure 5 As shown, a partition 22 is installed inside the filter tank 3, which divides the filter tank 3 into an upper activated carbon adsorption zone 23 and a lower sand filtration zone 24. The bottom of the filter tank 3 is fixed and connected to the interior of the disinfection and discharge pool 5 by a drain pipe 9.

[0030] In actual use, after the crew member has finished using the toilet, they press the flush button. On one hand, the waste mixture flows through the drain pipe to the discharge inlet 11. On the other hand, pressing the flush button simultaneously triggers the controller to start, activating the drive motor 14 to rotate the stirring rod 13, which in turn rotates the pulverizing blade 15. The waste mixture falls through the discharge inlet 11 onto the smooth inclined plate 12, changing direction and splashing onto the pulverizing blade 15. The high-speed rotating pulverizing blade 15 breaks down large solid pieces in the waste. The wastewater mixture then flows through the filter screen 16 into the chemical treatment tank 2. The oxidant dripping tank 6 and flocculant dripping tank 7 at the top of the chemical treatment tank 2 store calcium hypochlorite solution and flocculant and coagulant aid solutions, respectively. These solutions are added to the wastewater mixture through the drip pipe 17 and drip head 18 at the bottom. The calcium hypochlorite solution produces hypochlorite ions (ClO⁻), which have strong oxidizing properties and can decompose organic pollutants in the wastewater, including large organic molecules, bacteria, viruses, and other microorganisms in feces. The added flocculant and coagulant solutions then react with suspended particles, colloidal substances, and precipitates produced by oxidation in the wastewater, forming larger flocs that settle in the inclined plate sedimentation zone 19. When the sedimentation volume reaches the limit, the sediment can be discharged into a special collection tank through the drain valve 20 at the bottom of the chemical treatment tank 2, awaiting centralized treatment after the ship docks. The supernatant after flocculation, once it reaches a certain volume, flows through the outlet pipe 8 to the filter tank 3. This supernatant passes through the activated carbon adsorption zone 23 and the sand filtration zone 24 from top to bottom. Activated carbon, with its rich pore structure and large specific surface area, can adsorb residual organic pollutants, pigments, odor substances, and trace amounts of heavy metal ions in the wastewater, further purifying the wastewater. The sand filtration zone 24 is filled with sand layers of different particle sizes, as well as fiber filter media and filter screens, effectively removing small suspended particles, colloidal substances, and small amounts of precipitates produced by oxidation in the wastewater, further reducing the turbidity of the wastewater. The filtered purified water is discharged into the disinfection and discharge tank 5 through the drain pipe 9. An appropriate amount of chlorine dioxide is added to the purified water through the chlorine dioxide generator 4. Chlorine dioxide has strong oxidizing properties and can effectively kill pathogens such as bacteria, viruses, and parasite eggs in the water, ensuring that the microbiological indicators of the discharged water meet the standards. Finally, the disinfected water is discharged outside the ship through the discharge pipe.

[0031] It should be noted that the accompanying drawings in this embodiment are only for illustrating the specific structural composition and connection relationship of the device, and the dimensional proportions of each structural unit are not unique. The basic principles, main features, and advantages of this utility model have been shown and described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ship pollution prevention and discharge device, characterized in that: The system includes a collection box (1), the inlet of which is connected to the sewage pipe of the ship's toilet, and the collection box (1) is equipped with a stirring and crushing mechanism. The rear end of the collection box (1) is connected to a chemical treatment box (2), and a filter grid (16) is provided at the connection between the two. The top of the chemical treatment box (2) is equipped with an oxidant dripping box (6) and a flocculant dripping box (7). The bottom of the chemical treatment box (2) is equipped with an inclined plate sedimentation area (19). The side of the chemical treatment box (2) is connected to a filter tank (3), and the bottom of the filter tank (3) is connected to a disinfection and discharge pool (5). The top of the disinfection and discharge pool (5) is equipped with a chlorine dioxide generator (4), and the chlorine dioxide generated by the chlorine dioxide generator (4) is filled into the disinfection and discharge pool (5). The bottom of the disinfection and discharge pool (5) is equipped with a discharge port, which extends out of the ship through a pipe for discharge.

2. The ship pollution prevention and discharge device according to claim 1, characterized in that: The collection box (1) and the chemical treatment box (2) are connected by welding and the bottom is fixedly installed on the top of the disinfection and discharge pool (5) by the support legs (10).

3. A ship pollution prevention and discharge device according to claim 1, characterized in that: The collection box (1) has a discharge inlet (11) on one side of its top surface. The discharge inlet (11) is sealed to the sewage pipe of the toilet in the cabin. A sloping plate (12) is provided below the discharge inlet (11).

4. A ship pollution prevention and discharge device according to claim 3, characterized in that: The mixing and crushing mechanism includes a mixing rod (13) and a crushing blade (15). The crushing blade (15) is spirally and symmetrically installed on the mixing rod (13). A drive motor (14) is connected to the top of the mixing rod (13). The drive motor (14) is fixedly installed on the top surface of the electronic collection box (1).

5. A ship pollution prevention and discharge device according to claim 1, characterized in that: The interior of the oxidant dripping tank (6) and the flocculant dripping tank (7) is filled with calcium hypochlorite solution and flocculant and coagulant aid solution, respectively. A drip tube (17) is installed at the bottom of the oxidant dripping tank (6) and the flocculant dripping tank (7), and several drip heads (18) are evenly installed on the top of each drip tube (17). The drip heads (18) are connected to the oxidant dripping tank (6) and the flocculant dripping tank (7) through the drip tube (17), respectively.

6. A ship pollution prevention and discharge device according to claim 5, characterized in that: The bottom of the chemical treatment tank (2) is provided with an inclined plate sedimentation area (19) and a drain valve (20) is installed on the side. The side of the chemical treatment tank (2) is provided with a liquid outlet (21) above the inclined plate sedimentation area (19). The liquid outlet (21) is connected to the filter tank (3) through a liquid outlet pipe (8).

7. A ship pollution prevention and discharge device according to claim 1, characterized in that: The filter tank (3) is equipped with a partition (22) inside, which divides it into an upper activated carbon adsorption zone (23) and a lower sand filtration zone (24). The bottom of the filter tank (3) is fixed and connected to the interior of the disinfection and discharge pool (5) by a drain pipe (9).

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