Recycling equipment for filtering oil and water for ship

Abstract

The utility model relates to recycling equipment for filtering oil and water for ships, relates to the technical field of oil and water separation, and aims to solve the problem of insufficient oil and water filtration of equipment. The recycling equipment comprises a precipitation separation cylinder, the precipitation separation cylinder is provided with a water inlet, a water outlet and an oil outlet, and one side of the precipitation separation cylinder is provided with an intermediate treatment box; a water conveying pipe is arranged at a water outlet of the precipitation separation barrel, a water inlet pipe used for being in butt joint with the water conveying pipe is arranged on the middle treatment box, a recycling separation tank is arranged at the top of the middle treatment box, and a circulating pipe used for being communicated with the middle treatment box is arranged at the bottom of the recycling separation tank; according to the oil-water separation device, it is ensured that oil and impurities in an oil-water mixture can be efficiently and thoroughly removed, the water quality is remarkably improved, and the effect that the expected cleanliness standard can be achieved can be achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the oil-water separation technical field, in particular to a recycling equipment for ship oil-water filtration. BACKGROUND

[0002] In the complex pipeline system of a ship, oil-water purification is a crucial link. The ship oil-water filtration equipment, as the core of this link, undertakes the task of effectively separating and purifying the oil-water mixture generated during the operation of the ship. These equipment usually adopts advanced physical or chemical separation technologies, such as gravity separation, centrifugal separation or membrane separation, etc., to ensure that the oil and water in the oil-water mixture can be efficiently and completely separated. The water quality after purification treatment can meet the needs of various water-using equipment on the ship, thereby ensuring the normal operation of the ship.

[0003] In the related art, after the equipment performs oil-water filtration, part of the tiny oil may still not be completely filtered out. The residual oil or tiny impurities may enter the subsequent system with the water flow, which not only makes the filtered water quality unable to reach the expected cleanliness standard, but also may pose a potential threat to the cooling system, lubrication system and other equipment that rely on clean water sources of the ship, thereby affecting the overall performance and navigation safety of the ship. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem of insufficient oil-water filtration of the equipment, the application provides a recycling equipment for ship oil-water filtration.

[0005] The recycling equipment for ship oil-water filtration provided by the application adopts the following technical scheme:

[0006] The recycling equipment for ship oil-water filtration comprises a sedimentation separation cylinder, wherein the sedimentation separation cylinder is respectively provided with a water inlet, a water outlet and an oil outlet; one side of the sedimentation separation cylinder is provided with an intermediate treatment box; a water delivery pipe is arranged at the water outlet of the sedimentation separation cylinder; an inlet pipe for butt joint with the water delivery pipe is arranged on the intermediate treatment box; a recycling separation tank is arranged on the top of the intermediate treatment box; a circulation pipe for communication with the intermediate treatment box is arranged at the bottom of the recycling separation tank; a backflow pipe for communication with the sedimentation separation cylinder is arranged on the top of the recycling separation tank; and a backflow control valve for controlling the on-off is arranged on the backflow pipe.

[0007] Since part of the tiny oil may not be completely filtered out after the equipment filters the oil-water mixture, the residual oil or tiny impurities may enter the subsequent system with the water flow, which not only makes the filtered water fail to reach the expected cleanliness standard, but also may pose a potential threat to the cooling system, lubrication system and other equipment relying on clean water source of the ship, thereby affecting the overall performance and navigation safety of the ship; By adopting the technical scheme, the sedimentation separation cylinder is provided, the water inlet, the water outlet and the oil outlet are respectively arranged on the sedimentation separation cylinder, the sedimentation separation cylinder is communicated with the water inlet pipe of the intermediate treatment box through the water conveying pipe, the intermediate treatment box is communicated with the recirculation separation tank through the circulation pipe, and the recirculation separation pipe is communicated to the sedimentation separation cylinder through the backflow pipe;

[0008] When filtering the oil-water mixture, the oil-water mixture is introduced into the sedimentation separation cylinder through the water inlet, and most of the oil and heavy impurities begin to separate due to the action of gravity. The heavy impurities may deposit at the bottom of the cylinder, and the lighter oil may float on the upper layer of the water. After a period of sedimentation and separation, the relatively clean water flows out of the water outlet of the sedimentation separation cylinder, the water outlet is connected with the water conveying pipe to convey the water to the intermediate treatment box. The water entering the intermediate treatment box may still contain some tiny oil or impurities. The intermediate treatment box is provided with an additional filtering or treatment mechanism to further purify the water quality. The water treated by the intermediate treatment box is sent into the recirculation separation tank through the circulation pipe, and the water stored in the recirculation separation tank is sent back to the sedimentation separation cylinder through the backflow pipe to undergo the sedimentation and separation process again, forming a closed recirculation system. After multiple cycles and separations, the water quality will reach the expected cleanliness standard, and the clean water can be discharged or reused through a suitable outlet.

[0009] Through the arrangement of the sedimentation separation cylinder, the intermediate treatment box and the recirculation separation tank, the equipment ensures that the oil and impurities in the oil-water mixture can be efficiently and completely removed through a multi-stage separation mechanism, the water quality is significantly improved and can reach the expected cleanliness standard, which not only meets the demand of the ship system for clean water source, but also helps to prolong the service life of the equipment, improve the utilization rate of resources, reduce the discharge of waste water, meet the environmental protection requirements, and protect the cooling system, lubrication system and other equipment relying on clean water source of the ship, prevent equipment failure or performance decline caused by water quality problems, and ensure the overall performance and navigation safety of the ship.

[0010] Optionally, the water inlet and the water outlet are arranged at high and low liquid levels of the sedimentation separation cylinder respectively, the oil outlet is arranged at the top of the sedimentation separation cylinder, and a blowdown port for blowdown is arranged at the bottom of the sedimentation separation cylinder.

[0011] By adopting the technical scheme, the pollution discharge opening is arranged at the bottom of the sediment separation cylinder; through the arrangement of the water inlet, the water outlet, the oil outlet and the pollution discharge opening, the water inlet is arranged at the high liquid level position, so that the oil-water mixture can be fully dispersed when entering the sediment separation cylinder, the contact area of the oil droplets and the water is increased, and the subsequent sediment separation process is facilitated; the water outlet is arranged at the low liquid level position, so that the relatively clean water after sedimentation can be smoothly discharged, and the oil droplets or impurities that are not completely precipitated are avoided from being carried due to the high water level; the oil outlet is arranged at the top of the sediment separation cylinder, the oil floating on the water surface can be smoothly collected by using the characteristic that the oil density is smaller than the water density, the effective recovery of the oil is ensured, the waste of the oil and the environmental pollution are reduced, and the impurities and the sediments precipitated from the sediment separation cylinder can be conveniently discharged through the pollution discharge opening arranged at the bottom of the sediment separation cylinder, so that the pollution discharge operation is simplified, and the cleaning and the efficient operation of the sediment separation cylinder are facilitated.

[0012] Optionally, a double-pipe conveying mechanism is arranged between the water conveying pipe and the water inlet pipe, the double-pipe conveying mechanism comprises a main conveying pipe and an auxiliary conveying pipe, the main conveying pipe and the auxiliary conveying pipe are arranged side by side, and two ends of the main conveying pipe and the auxiliary conveying pipe are connected to the water conveying pipe and the water inlet pipe respectively.

[0013] By adopting the technical scheme, the double-pipe conveying mechanism is arranged between the water conveying pipe and the water inlet pipe, the double-pipe conveying mechanism comprises a main conveying pipe and an auxiliary conveying pipe; through the arrangement of the double-pipe conveying mechanism, parallel conveying of the oil-water mixture is realized, the conveying efficiency is improved, more water can be conveyed to the intermediate treatment box for treatment in unit time, when one of the pipes fails or needs to be maintained, the other pipe can continue to work as a backup path, the continuity and reliability of the system are ensured, and the design of the double-pipe conveying mechanism enables the system to flexibly adjust the conveying amount according to actual needs, for example, in peak period or when a large amount of oil-water mixture needs to be quickly treated, the main conveying pipe and the auxiliary conveying pipe can be simultaneously started to improve the conveying efficiency, and in low peak period or when the treatment amount is small, only one of the pipes can be started to save energy.

[0014] Optionally, a circulating conveying pump for assisting water pumping is arranged on the main conveying pipe and the auxiliary conveying pipe, and a flow control valve for controlling the flow is arranged on the main conveying pipe and the auxiliary conveying pipe.

[0015] By adopting the technical scheme, the circulating conveying pump and the flow control valve are arranged on the main conveying pipe and the auxiliary conveying pipe; the circulating conveying pump can provide stable and powerful water pumping power for the main conveying pipe and the auxiliary conveying pipe, so that the oil-water mixture can be smoothly conveyed to the intermediate treatment tank, the water pumping efficiency is improved, the conveying time is shortened, and the flow control valve can accurately adjust the water flow in the main conveying pipe and the auxiliary conveying pipe, so that the system can be flexibly adjusted according to actual needs, which helps to optimize the conveying process and improve the overall efficiency of the system.

[0016] Optionally, the intermediate treatment tank is internally provided with a plurality of partitions, and the plurality of partitions are sequentially and spacedly arranged in the intermediate treatment tank.

[0017] By adopting the technical scheme, the plurality of partitions are sequentially and spacedly arranged in the intermediate treatment tank, thereby forming different treatment areas; the intermediate treatment tank is divided into different treatment areas by the plurality of partitions, so that the oil-water mixture at different stages can be treated in a targeted manner, and the partitioned treatment helps to improve the overall treatment efficiency and improve the water quality more quickly.

[0018] Optionally, the intermediate treatment tank is internally provided with a plurality of partitions, and the plurality of partitions are sequentially and spacedly arranged in the intermediate treatment tank.

[0019] By adopting the technical scheme, the plurality of partitions are sequentially and spacedly arranged in the intermediate treatment tank, thereby forming different treatment areas; the intermediate treatment tank is divided into different treatment areas by the plurality of partitions, so that the oil-water mixture at different stages can be treated in a targeted manner, and the partitioned treatment helps to improve the overall treatment efficiency and improve the water quality more quickly.

[0020] Optionally, the intermediate treatment tank is internally provided with a plurality of partitions, and the plurality of partitions are sequentially and spacedly arranged in the intermediate treatment tank.

[0021] By adopting the technical scheme, the plurality of partitions are sequentially and spacedly arranged in the intermediate treatment tank, thereby forming different treatment areas; the intermediate treatment tank is divided into different treatment areas by the plurality of partitions, so that the oil-water mixture at different stages can be treated in a targeted manner, and the partitioned treatment helps to improve the overall treatment efficiency and improve the water quality more quickly.

[0022] Optionally, the intermediate treatment tank is internally provided with a plurality of partitions, and the plurality of partitions are sequentially and spacedly arranged in the intermediate treatment tank.

[0023] By adopting the technical scheme, the support frame is installed on the ground, and the intermediate treatment box and the recycling separation tank are arranged on the support frame; through the arrangement of the support frame, the weight of the intermediate treatment box and the recycling separation tank can be stably supported, so that they will not tilt or collapse during use, and the long-term operation of the equipment is ensured.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] Through the arrangement of the sedimentation separation cylinder, the intermediate treatment box and the recycling separation tank, the equipment uses a multi-stage separation mechanism to ensure that the oil and impurities in the oil-water mixture can be efficiently and completely removed, the water quality is significantly improved, and the expected cleanliness standard can be reached, not only meeting the demand of the ship system for clean water source, but also helping to prolong the service life of the equipment, improve the utilization rate of resources, reduce the discharge of waste water, meet the environmental protection requirements, and help to protect the cooling system, lubrication system and other equipment that rely on clean water source of the ship, prevent equipment failure or performance decline caused by water quality problems, and ensure the overall performance and navigation safety of the ship;

[0026] Through the arrangement of the double-pipe conveying mechanism, parallel conveying of the oil-water mixture is realized, the conveying efficiency is improved, more water can be conveyed to the intermediate treatment box for treatment in unit time, and when one of the pipes fails or needs maintenance, the other pipe can continue to work as a backup path to ensure the continuity and reliability of the system. The design of the double-pipe conveying mechanism allows the system to flexibly adjust the conveying capacity according to actual needs, for example, during peak period or when a large amount of oil-water mixture needs to be quickly treated, the main conveying pipe and the auxiliary conveying pipe can be simultaneously started to improve the conveying efficiency; while in the low peak period or when the processing capacity is small, only one of the pipes can be started to save energy;

[0027] Through the arrangement of the circulating conveying pump and the flow control valve, the circulating conveying pump can provide stable and powerful water pumping power for the main conveying pipe and the auxiliary conveying pipe, ensuring that the oil-water mixture can be smoothly conveyed to the intermediate treatment box, improving the water pumping efficiency and shortening the conveying time. The flow control valve can accurately adjust the water flow in the main conveying pipe and the auxiliary conveying pipe to ensure that the system can be flexibly adjusted according to actual needs, which helps to optimize the conveying process and improve the overall efficiency of the system. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic diagram of a recycling equipment for filtering oil-water of a ship in an embodiment of the present application.

[0029] Figure 2 is an internal sectional view of a recycling equipment for filtering oil-water of a ship in an embodiment of the present application.

[0030] Explanation of reference signs: 1, sedimentation separation cylinder; 2, water inlet; 3, water outlet; 4, oil outlet; 5, intermediate treatment box; 6, water conveying pipe; 7, water inlet pipe; 8, recirculation separation tank; 9, circulation pipe; 10, backflow pipe; 11, backflow control valve; 12, sewage outlet; 13, double-pipe conveying mechanism; 131, main conveying pipe; 132, auxiliary conveying pipe; 14, circulation conveying pump; 15, flow control valve; 16, partition plate; 17, sedimentation plate; 18, backwashing port; 19, support frame. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings Figures 1-2 The present application is further described in detail.

[0032] The present application discloses a recirculation device for filtering oil and water on a ship. Referring to Figure 1 The recirculation device for filtering oil and water on a ship comprises a sedimentation separation cylinder 1, which is hollow in the present embodiment. The sedimentation separation cylinder 1 separates oil and water by gravity. In addition, a coalescing separator can be provided inside the sedimentation separation cylinder 1. The coalescing separator is made of oleophilic material. When the oil-water mixture flows through the material, the oil droplets are adsorbed and coalesce into larger oil droplets, which then float to the liquid surface under the action of gravity, thereby improving the separation efficiency of oil and water.

[0033] Referring to Figure 1 and Figure 2 The sedimentation separation cylinder 1 is provided with a water inlet 2, a water outlet 3, an oil outlet 4, and a sewage outlet 12. The water inlet 2 and the water outlet 3 are provided on the outer wall of the sedimentation separation cylinder 1. The water inlet 2 is located at a high liquid level of the sedimentation separation cylinder 1, and the water outlet 3 is located at a low liquid level of the sedimentation separation cylinder 1. The oil outlet 4 is provided at the top of the sedimentation separation cylinder 1, and the sewage outlet 12 is provided at the bottom of the sedimentation separation cylinder 1. In the present embodiment, the water inlet 2, the water outlet 3, and the oil outlet 4 are each provided with a corresponding pipe, and a valve for controlling the on-off of the sewage outlet 12 is provided. The water inlet 2 is arranged at a high liquid level to ensure that the oil-water mixture can be fully dispersed when entering the sedimentation separation cylinder 1, thereby increasing the contact area between the oil droplets and the water and facilitating the subsequent sedimentation separation process. The water outlet 3 is arranged at a low liquid level to ensure that the relatively clean water after sedimentation can be smoothly discharged, thereby avoiding the carrying of incompletely precipitated oil droplets or impurities due to the high water level. The oil outlet 4 is arranged at the top of the sedimentation separation cylinder 1 to take advantage of the fact that the oil has a lower density than water, so that the oil floating on the water surface can be collected smoothly, thereby ensuring the effective recovery of the oil and reducing the waste and environmental pollution of the oil. The sewage outlet 12 is provided at the bottom of the sedimentation separation cylinder 1 to conveniently discharge the precipitated impurities and sediments, thereby simplifying the sewage operation and helping to maintain the cleanliness and efficient operation of the sedimentation separation cylinder 1.

[0034] Referring to Figure 1The side of the precipitation separation cylinder 1 is provided with an intermediate treatment box 5 and a recycling separation tank 8, and a support frame 19 is arranged below the intermediate treatment box 5 in the embodiment, and the intermediate treatment box 5 and the recycling separation tank 8 are fixed on the support frame 19; the support frame 19 can stably support the weight of the intermediate treatment box 5 and the recycling separation tank 8, so as to ensure that they will not tilt or collapse during use, and ensure long-term operation of the equipment.

[0035] With reference to Figure 1 and Figure 2 , the water outlet 3 of the precipitation separation cylinder 1 is provided with a water conveying pipe 6, and the intermediate treatment box 5 is communicated with a water inlet pipe 7, and a double-pipe conveying mechanism 13 is arranged between the water conveying pipe 6 and the water inlet pipe 7, the double-pipe conveying mechanism 13 includes a main conveying pipe 131 and an auxiliary conveying pipe 132, the main conveying pipe 131 and the auxiliary conveying pipe 132 are arranged side by side, and the two ends of the main conveying pipe 131 and the auxiliary conveying pipe 132 are respectively communicated with the water conveying pipe 6 and the water inlet pipe 7.

[0036] With reference to Figure 1 , the main conveying pipe 131 and the auxiliary conveying pipe 132 are both provided with a circulating conveying pump 14 and a flow control valve 15; which helps to realize parallel conveying of oil-water mixture, improves conveying efficiency, so that more water can be conveyed to the intermediate treatment box 5 for treatment in unit time, at the same time, when one of the pipes fails or needs maintenance, the other pipe can continue to work as a backup path to ensure the continuity and reliability of the system, and the design of the double-pipe conveying mechanism 13 enables the system to flexibly adjust the conveying amount according to actual needs, for example, during peak period or when a large amount of oil-water mixture needs to be quickly treated, the main conveying pipe 131 and the auxiliary conveying pipe 132 can be simultaneously started to improve the conveying efficiency; while in the off-peak period or when the processing capacity is small, only one of the pipes can be started to save energy.

[0037] With reference to Figure 1 and Figure 2 , the intermediate treatment box 5 is a hollow structure, and a plurality of partitions 16 are arranged in the intermediate treatment box 5, the plurality of partitions 16 are arranged in the height direction of the intermediate treatment box 5, and the plurality of partitions 16 divide the intermediate treatment box 5 into different treatment areas, which can be used for targeted treatment of oil-water mixtures at different stages, and different filter media can be filled in different areas, and the filter media in the embodiment can be quartz sand, activated carbon, anthracite, etc., and the partitioned treatment mode helps to improve the overall treatment efficiency and improve the water quality faster.

[0038] With reference to Figure 1 and Figure 2The intermediate treatment tank 5 is internally provided with a sedimentation plate 17, which is arranged obliquely at the bottom of the intermediate treatment tank 5, effectively utilizes the internal space of the intermediate treatment tank 5, and increases the sedimentation area. A larger sedimentation area means that more oil droplets and impurities have the opportunity to deposit on the sedimentation plate 17, thereby improving the sedimentation efficiency.

[0039] With reference to Figure 1 Meanwhile, the intermediate treatment tank 5 is provided with a backwashing port 18. In this embodiment, the backwashing port 18 is in a closed state for a long time when the intermediate treatment tank 5 is not cleaned. The backwashing port 18 can be directly connected to the inside of the intermediate treatment tank 5. By means of inverted flow, the inside of the intermediate treatment tank 5 is washed by using water or compressed air as a medium, so that oil droplets, impurities and dirt attached to the sedimentation plate 17, the partition plate 16 and the tank wall can be completely removed, thereby ensuring the cleanliness of the inside of the intermediate treatment tank 5.

[0040] With reference to Figure 1 The intermediate treatment tank 5 is provided with a circulating pipe 9, one end of which is installed at the top of the intermediate treatment tank 5, and the other end of which is installed at the bottom of the recirculation separation tank 8. The circulating pipe 9 is connected to the inside of the intermediate treatment tank 5 and the recirculation separation tank 8, and can be provided with a corresponding valve and pump body.

[0041] With reference to Figure 1 The recirculation separation tank 8 can store water for a short time. The recirculation separation tank 8 is provided with a backflow pipe 10, one end of which is connected to the inside of the recirculation separation tank 8, and the other end of which is connected to the inside of the sedimentation separation cylinder 1. In this embodiment, the installation position of the backflow pipe 10 on the sedimentation separation cylinder 1 is located at a high liquid level. The backflow pipe 10 is provided with a backflow control valve 11, and can also be provided with a corresponding pump body.

[0042] The implementation principle of the recirculation equipment for filtering oil-water of a ship is as follows: when filtering oil-water, the oil-water mixture is introduced into the sedimentation separation cylinder 1 through the water inlet 2. Due to the action of gravity, most of the oil and heavy impurities will begin to separate. The heavy impurities may deposit at the bottom of the cylinder, and the lighter oil will float on the upper layer of water. After a period of sedimentation and separation, the relatively clean water will flow out through the water outlet 3 of the sedimentation separation cylinder 1. The water outlet 3 is connected with the water conveying pipe 6, and the water is conveyed to the intermediate treatment box 5. The water entering the intermediate treatment box 5 may still contain some small oil or impurities. The intermediate treatment box 5 is provided with an additional filtering or treatment mechanism to further purify the water quality. The water treated by the intermediate treatment box 5 is sent into the recirculation separation tank 8 through the circulation pipe 9, and the water stored in the recirculation separation tank 8 is sent back to the sedimentation separation cylinder 1 through the backflow pipe 10 to undergo the sedimentation and separation process again, forming a closed-loop recirculation system. After multiple cycles and separations, the water quality will reach the expected cleanliness standard, and the clean water can be discharged or reused through a suitable outlet.

[0043] Through the arrangement of the sedimentation separation cylinder 1, the intermediate treatment box 5 and the recirculation separation tank 8, the equipment ensures that the oil and impurities in the oil-water mixture can be efficiently and completely removed through a multi-stage separation mechanism, and the water quality is significantly improved to reach the expected cleanliness standard, which not only meets the demand of the ship system for clean water source, but also helps to prolong the service life of the equipment, improve the utilization rate of resources, reduce the discharge of waste water, meet the environmental protection requirements, and protect the cooling system, lubrication system and other equipment relying on clean water source of the ship, prevent equipment failure or performance decline caused by water quality problems, and ensure the overall performance and navigation safety of the ship.

[0044] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A marine oil-water filtration recirculation apparatus comprising a sedimentation separation cylinder, characterized by: The sediment separation cylinder is provided with a water inlet, a water outlet and an oil outlet, one side of the sediment separation cylinder is provided with an intermediate treatment box, the water outlet of the sediment separation cylinder is provided with a water conveying pipe, the intermediate treatment box is provided with a water inlet pipe for connecting with the water conveying pipe, the top of the intermediate treatment box is provided with a recycling separation tank, the bottom of the recycling separation tank is provided with a circulation pipe for connecting with the intermediate treatment box, the top of the recycling separation tank is provided with a backflow pipe for connecting with the sediment separation cylinder, and the backflow pipe is provided with a backflow control valve for controlling the on-off.

2. A recirculation apparatus for oil-water filtration of a marine vessel according to claim 1, characterized in that: The water inlet and the water outlet are arranged at high and low liquid levels of the sediment separation cylinder respectively, the oil outlet is arranged at the top of the sediment separation cylinder, and the bottom of the sediment separation cylinder is provided with a blowdown port for blowdown.

3. A recirculation apparatus for oil-water filtration of a marine vessel according to claim 1, characterized in that: A double-pipe conveying mechanism is arranged between the water conveying pipe and the water inlet pipe, the double-pipe conveying mechanism comprises a main conveying pipe and an auxiliary conveying pipe, the main conveying pipe and the auxiliary conveying pipe are arranged side by side, and the two ends of the main conveying pipe and the auxiliary conveying pipe are connected to the water conveying pipe and the water inlet pipe respectively.

4. A recirculation apparatus for oil and water filtration of a marine vessel according to claim 3, characterized in that: The main conveying pipe and the auxiliary conveying pipe are provided with a circulating conveying pump for assisting water pumping, and the main conveying pipe and the auxiliary conveying pipe are provided with a flow control valve for controlling flow.

5. A recirculation apparatus for oil and water filtration of a marine vessel according to claim 1, characterized in that: The intermediate treatment box is provided with a plurality of partitions arranged in the intermediate treatment box.

6. A recirculation apparatus for oil and water filtration of a marine vessel according to claim 5, characterized in that: The intermediate treatment box is provided with a sedimentation plate for increasing the sedimentation area, and the sedimentation plate is arranged obliquely at the bottom of the intermediate treatment box.

7. A recirculation apparatus for oil and water filtration of a marine vessel according to claim 5, characterized in that: The intermediate treatment box is provided with a backwashing port for cleaning the inside, and the backwashing port is communicated to the inside of the intermediate treatment box.

8. A recirculation apparatus for oil and water filtration of a marine vessel according to claim 1, characterized in that: The intermediate treatment box is provided with a support frame for supporting, and the intermediate treatment box and the recycling separation tank are arranged on the support frame.

Images