A ship oily waste water separation collection and treatment device

Abstract

The application discloses a ship oily wastewater separation collection and treatment device in the technical field of ship oily wastewater treatment, which comprises a collection tank and a filtering mechanism, the upper portion of the collection tank is provided with a pipeline assembly component, a first rotating pipe, a flow distribution structure and a rotating assembly, the middle and lower portion is provided with a plurality of oil-water separation components, a sealing assembly and a sealing driving assembly, and the outer portion is provided with a driving assembly, the oily wastewater is filtered by multiple filter screens, and solid impurities and the like are removed; the liquid enters the multiple oil-water separation components in sequence through the rotating pipe and the flow distribution structure, and the multiple oil-water separation components work simultaneously, so that the separation efficiency is improved, and the separation speed is accelerated through centrifugal action; the pipeline movement assembly and the sealing control assembly move simultaneously through the driving assembly, so that the liquid transportation, separation and oil discharge at different positions are simultaneously performed, the timely discharge of the oil liquid enables the oil-water separation components to quickly perform the next oil-water separation, and the separation work is not affected by the excessive oil liquid accumulation in the inside.

Description

Technical Field

[0001] This invention relates to the field of ship oily wastewater treatment technology, specifically to a ship oily wastewater separation, collection and treatment device. Background Technology

[0002] Ship-borne oily wastewater mainly includes domestic sewage containing detergents and foaming agents, as well as oily wastewater formed by the mixture of oil and water leaking from various machinery structures in the engine room. Direct discharge of such wastewater can easily pollute marine and river environments, thus requiring treatment. Furthermore, the impact of ships on lakes and other water bodies is even more pronounced when they operate for extended periods. Therefore, during lake ecological restoration and renovation, it is also necessary to collect and treat ship sewage and collect and treat oily wastewater mixed in with lakes in a timely manner to restore the aquatic environment.

[0003] The treatment of oily wastewater includes various methods and combinations such as membrane treatment and sedimentation treatment. For example, an oil-water separation device for treating oily wastewater, patent application number CN202121331209.8, mainly includes a separation tank, a filtration device and a cleaning device. The filtration device includes an oleophilic and hydrophobic membrane, a filter screen and an activated carbon layer, which can perform oil-water separation and filtration treatment on wastewater.

[0004] After the above-mentioned device has been working for a period of time, a lot of solid impurities will accumulate between the oleophilic and hydrophobic membrane and the filter screen, which needs to be cleaned to avoid affecting the oil-water separation and filtration process. However, during the downward movement of the cleaning brush in the cleaning device, there must be no untreated wastewater inside the device, and the device should not perform wastewater treatment. Otherwise, solids in the wastewater will accumulate on the top of the cleaning brush and cannot be cleaned or discharged. Therefore, the cleaning work of the device is related to its own separation and treatment work and cannot be carried out at the same time, which will affect the working efficiency of the device.

[0005] Based on this, the present invention designs a device for separating, collecting and treating oily wastewater from ships to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a device for separating, collecting, and treating oily wastewater from ships, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A device for separating, collecting and treating oily wastewater from ships includes a cylindrical collection box, a drain pipe located in the middle of the bottom of the inner cavity of the collection box, and a filter mechanism located at the center of the inner cavity.

[0009] The filtration mechanism includes a cylindrical filter box. The bottom of the filter box is fixedly connected to the bottom of the collection box by a plurality of evenly arranged support rods. A plurality of filter screens are evenly arranged in the lower part of the inner cavity of the filter box. The mesh size of the filter screens decreases from top to bottom. An inlet pipe is fixed on the upper part of the right side wall of the filter box, and the right end of the inlet pipe passes through and extends out of the collection box.

[0010] A pump body is located in the middle of the bottom of the filter box. A vertical delivery pipe is fixed at the top of the pump body. The top of the delivery pipe passes through and extends out of the center of multiple filter screens. The extended end is rotatably connected to a vertical second rotating pipe. A horizontal first rotating pipe is connected and fixed to the left side of the second rotating pipe. A vertical liquid outlet is fixed at the bottom of the left side of the first rotating pipe. A pipe movement assembly is provided on the upper part of the outer wall of the collection box, and the first rotating pipe is connected to the pipe movement assembly.

[0011] A diversion structure is provided between the upper side walls of the collection box and the filter box. An annular fixing plate is fixed on the inner side wall of the collection box below the diversion structure. Multiple oil-water separation components are evenly arranged and rotatably connected on the annular fixing plate along the circumferential direction, and a corresponding rotating component is provided.

[0012] The bottom of the oil-water separation component is equipped with a sealing component, and the lower part of the collection box is equipped with a sealing control component. Both the sealing control component and the pipeline movement component are connected to the drive component on the left side wall of the collection box.

[0013] The bottom of the collection box is fixed with an annular oil collection pipe. The bottom inner side of the oil-water separation component is fixedly connected to the annular oil collection pipe through an oil drain port, and the bottom of the annular oil collection pipe is equipped with an oil drain pipe.

[0014] Preferably, the oil-water separation component includes a conical separation screen cylinder with an upper diameter larger than a lower diameter. A separation membrane, which is hydrophilic and oleophobic, is fixed on the inner wall of the separation screen cylinder. An upper end plate is fixed at the top of the separation screen cylinder, and an annular lower end plate is fixed at the bottom. An upper cylinder is fixed at the center of the upper end plate. The upper cylinder is rotatably connected to the annular fixed plate, and its top extends out of the annular mounting plate and is correspondingly connected to the rotating component and the diversion structure. A lower cylinder is provided at the bottom of the collection box corresponding to the position of the lower end plate, and the bottom end of the center hole of the lower end plate is inserted into the lower cylinder. The lower cylinder is correspondingly connected to the sealing component, and the bottom of the lower cylinder extends out of the collection box and is connected to the annular oil collection pipe through the oil drain port on the inner side of the bottom.

[0015] Preferably, the rotating assembly includes a third gear ring rotatably connected to the top of the annular fixed plate, a fourth gear ring fixed to the upper part of the outer side wall of the upper cylinder, multiple fourth gear rings meshing with the inner side of the third gear ring, and a third gear meshing with the inner side of the third gear ring, the position of the third gear being offset from the position of the fourth gear ring, and a motor connected thereto, and the motor being fixed to the annular fixed plate.

[0016] Preferably, the sealing assembly includes a sealing plug located at the top of the lower end plate. The top surface of the sealing plug is a conical surface, and a vertical spring rod is fixed at the center of the bottom surface. The bottom end of the spring rod extends out of the lower end cylinder and is fixed with a circular spring block. A spring is provided between the top surface of the spring block and the top surface of the collection box. A toggle plate is rotatably connected to the outside of the spring block, and a drive plate is provided in the collection box at the position corresponding to the toggle plate.

[0017] The inner section of the drive plate has a slot at its center, in which a central shaft is fixed. The bottom of the collection box has a fixing rod with its bottom end extending into the slot. The central shaft is rotatably connected to the fixing rod at the bottom of the collection box. The actuating plate is located in the slot and has actuating grooves on both sides. Two actuating shafts are rotatably connected to the corresponding positions on the drive plate, with their inner ends extending into the actuating grooves.

[0018] Preferably, the drive assembly includes multiple fixed frames uniformly fixed on the side wall of the collection box, and a vertical drive shaft is rotatably connected to the multiple fixed frames. A first gear is fixed at the top end of the drive shaft, a second gear is fixed at the bottom end, and a first bevel gear is fixed in the middle. A second bevel gear meshes with one side of the first bevel gear. A motor is connected to the second bevel gear, and the motor is fixedly connected to the fixed frames.

[0019] Preferably, the pipeline moving assembly includes a first gear ring rotatably connected to the outer wall of the collection box, the first gear ring meshing with a first gear, an annular seat rotatably connected to the upper part of the outer wall of the collection box, a horizontal rotating plate fixed to the left side of the annular seat, the bottom left end of the rotating plate being fixedly connected to the top of the first gear ring via a support block, the left side section of the first rotating pipe being fixed to the rotating plate, and the bottom end of the liquid outlet passing through and extending out of the rotating plate.

[0020] Preferably, the sealing control assembly includes a second gear ring rotatably connected to the lower part of the outer wall of the collection box. The second gear ring meshes with a second gear. A mounting bracket is provided at the bottom right side of the second gear ring. A pressure block is fixed at the inner end of the mounting bracket. The pressure block is correspondingly connected to the drive plate of the sealing assembly. The bottom of the pressure block protrudes downward in the middle, and inclined guide surfaces are symmetrically provided on both sides of the protrusion.

[0021] Preferably, the diversion structure includes multiple diversion hoppers that are uniformly fixed along the circumference of the collection box. A diversion pipe is fixed in the middle of the bottom of the diversion hopper, and the bottom end of the diversion pipe extends into the upper end cylinder at the corresponding position. The top sides of two adjacent diversion hoppers are in contact with each other and fixed.

[0022] Preferably, an annular mounting plate is fixed in the middle of the inner wall of the filter box, and a cylindrical rotating groove is rotatably connected in the annular mounting plate. Multiple filter screens are fixed in the rotating groove. The inner end of the liquid inlet pipe is located above the right side section of the rotating groove and the filter screen. A vertical rotating cylinder is fixed together at the center of the multiple filter screens. The delivery pipe is located inside the rotating cylinder. A transmission bevel gear ring is fixed in the upper part of the outer wall of the rotating groove. A drive bevel gear meshes on one side of the transmission bevel gear ring. The drive bevel gear is connected to a motor, and the motor is mounted on the mounting plate.

[0023] Preferably, a fixing mesh is fixed between the upper side walls of the collection box and the filter box, and the fixing mesh is located above the diversion structure.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. This invention uses multiple filter screens to perform multi-stage filtration of oily wastewater, removing solid impurities and avoiding impact on subsequent water-oil separation components and other structures.

[0026] 2. This invention uses a rotating tube and a diversion structure to allow liquid to sequentially enter multiple oil-water separation components for separation. The simultaneous operation of multiple oil-water separation components improves separation efficiency, and the rotating components cause multiple oil-water separation components to rotate, thereby accelerating the separation speed through centrifugal force.

[0027] 3. This invention enables the pipeline movement component and the sealing control component to move simultaneously through the driving component, thereby allowing the liquid transportation, separation and oil discharge of the oil-water separation components at different locations to be carried out simultaneously. Timely discharge of oil also allows the oil-water separation components to quickly carry out the next oil-water separation, avoiding excessive oil accumulation inside that would affect the separation work. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure at point A of the present invention;

[0031] Figure 3 This is a schematic diagram of the top structure of the delivery pipe of the present invention;

[0032] Figure 4 This is a schematic diagram showing the location of the diversion bucket in this invention;

[0033] Figure 5 This is a schematic diagram of the middle structure of the drive shaft of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure at point B of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the driver board of the present invention;

[0036] Figure 8 This is a schematic diagram of the structure at point C of the present invention;

[0037] Figure 9 This is a schematic diagram of the inner structure of the third gear ring of the present invention;

[0038] Figure 10 This is a schematic diagram of the rotating groove of the present invention.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1-Collection box, 101-Drain pipe, 102-Annular oil collection pipe, 103-Oil discharge pipe, 104-Fixed net, 105-Diverting hopper, 106-Diverting pipe;

[0041] 2-Filter box, 201-Inlet pipe, 202-Filter screen, 203-Support rod, 204-Pump body, 205-Transfer pipe, 206-Rotating groove, 207-Transmission bevel gear ring, 208-Drive bevel gear, 209-Annular mounting plate;

[0042] 3-First rotating tube, 301-Second rotating tube, 302-Liquid outlet, 303-Rotating plate, 304-Annular seat, 305-Support block, 306-First gear ring;

[0043] 4-Drive shaft, 401-First bevel gear, 402-Second bevel gear, 403-Fixed bracket, 404-First gear, 405-Second gear;

[0044] 5-Second gear ring, 501-Mounting bracket, 502-Pressure block;

[0045] 6-Separation screen cylinder, 601-Separation membrane, 602-Upper end plate, 603-Upper end cylinder, 604-Lower end cylinder, 605-Oil drain port;

[0046] 7- Annular fixing plate, 701- Third gear ring, 702- Fourth gear ring, 703- Third gear;

[0047] 8-Sealing plug, 801-Spring rod, 802-Spring block, 803-Actuating plate, 804-Drive plate, 805-Central shaft, 806-Fixing rod, 807-Actuating groove, 808-Actuating shaft. Detailed Implementation

[0048] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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.

[0049] Example 1

[0050] Please refer to the accompanying drawings. This invention provides a technical solution:

[0051] A device for separating, collecting and treating oily wastewater from ships includes a cylindrical collection box 1, a drain pipe 101 located at the bottom center of the inner cavity of the collection box 1, and a filter mechanism located at the center of the inner cavity.

[0052] The filtration mechanism includes a cylindrical filter box 2. The bottom of the filter box 2 is fixedly connected to the bottom of the collection box 1 by a plurality of evenly arranged support rods 203. A plurality of filter screens 202 are evenly arranged in the lower part of the inner cavity of the filter box 2. The mesh size of the plurality of filter screens 202 arranged from top to bottom decreases sequentially. An inlet pipe 201 is fixed on the upper part of the right side wall of the filter box 2, and the right end of the inlet pipe 201 passes through and extends out of the collection box 1.

[0053] A pump body 204 is provided in the middle of the bottom of the filter box 2. A vertical conveying pipe 205 is fixed at the top of the pump body 204. The top of the conveying pipe 205 passes through and extends out of the center of multiple filter screens 202. The extended end is rotatably connected to a vertical second rotating pipe 301. A horizontal first rotating pipe 3 is connected and fixed to the left side of the second rotating pipe 301. A vertical liquid outlet 302 is fixed at the bottom of the left side of the first rotating pipe 3. A pipe moving assembly is provided on the upper part of the outer side wall of the collection box 1, and the first rotating pipe 3 is connected to the pipe moving assembly.

[0054] A diversion structure is provided between the upper side walls of the collection box 1 and the filter box 2. An annular fixing plate 7 is fixed on the inner side wall of the collection box 1 at the position below the diversion structure. Multiple oil-water separation components are evenly arranged and rotatably connected on the annular fixing plate 7 along the circumferential direction, and a rotating component is provided accordingly.

[0055] The bottom of the oil-water separation component is equipped with a sealing component, and the lower part of the collection box 1 is equipped with a sealing control component. Both the sealing control component and the pipeline movement component are connected to the drive component on the left side wall of the collection box 1.

[0056] The bottom of the collection box 1 is fixed with an annular oil collection pipe 102. The bottom inner side of the oil-water separation component is fixedly connected to the annular oil collection pipe 102 through the oil drain port 605, and the bottom of the annular oil collection pipe 102 is provided with an oil drain pipe 103.

[0057] When separating and treating oily wastewater, the wastewater liquid enters the filter box 2 through an external conveying structure, and undergoes multi-stage filtration through multiple filter screens 202 to remove solids. The filtered liquid can then enter the first rotating pipe 3 through the action of the pump body 204 and the conveying pipe 205.

[0058] The first rotating pipe 3 moves intermittently in the circumferential direction under the action of the drive component and the pipe movement component. Each time it stops moving, it stays above an oil-water separation component. Through the action of the diversion structure, the liquid enters the corresponding oil-water separation component for oil-water separation. The water separated by the oil-water separation component enters the collection tank for collection and is discharged through the drain pipe 101 so that it can be transported to the subsequent treatment equipment for further purification.

[0059] This application uses a rotating component to make the oil-water separation component rotate rapidly, thereby accelerating the separation speed through centrifugal force; when the first rotating tube 3 moves in the circumferential direction, the liquid to be processed is sequentially delivered to multiple oil-water separation components, and multiple oil-water separation components perform separation operations simultaneously, thereby improving the oil-water separation efficiency.

[0060] When the drive component is working, it simultaneously drives the pipe movement component and the sealing control component to move. When the first rotating pipe 3 delivers liquid to the oil-water separation component on one side, the sealing component at the opposite position opens through the sealing control component, thereby connecting the bottom of the oil-water separation component with the annular oil collecting pipe 102, and discharging the oil through the annular oil collecting pipe 102 and the oil discharge pipe 103. This allows liquid delivery, separation and oil discharge to occur simultaneously. Timely discharge of oil also enables the oil-water separation component to quickly perform the next oil-water separation, avoiding excessive oil accumulation inside that could affect the separation process.

[0061] The oil-water separation component includes a conical separation screen cylinder 6, with the upper diameter of the separation screen cylinder 6 being larger than the lower diameter. A separation membrane 601 is fixed on the inner wall of the separation screen cylinder 6, and the separation membrane 601 is a hydrophilic and oleophobic membrane. An upper end plate 602 is fixed at the top of the separation screen cylinder 6, and an annular lower end plate is fixed at the bottom. An upper end cylinder 603 is fixed at the center of the upper end plate 602. The upper end cylinder 603 is rotatably connected to the annular fixing plate 7, and its top end extends out of the annular mounting plate 209 and is correspondingly connected to the rotating component and the diversion structure. A lower end cylinder 604 is provided at the bottom of the collection box 1 corresponding to the position of the lower end plate, and the bottom end of the center hole of the lower end plate is inserted into the lower end cylinder 604. The lower end cylinder 604 is correspondingly connected to the sealing component, and the bottom of the lower end cylinder 604 extends out of the collection box 1 and is connected to the annular oil collection pipe 102 through the oil drain port 605 on the inner side of the bottom.

[0062] When the oil enters the corresponding separation cylinder 6 through the diversion structure, the separation cylinder 6 is rotated by the rotating component. While rotating, the oil and water are separated by the separation membrane 601, and the separation speed is accelerated by centrifugal force. The separation cylinder 6 mainly serves to fix and support the separation membrane 601. When liquid enters the separation cylinder 6 on one side, the bottom of the separation cylinder 6 on the opposite side is opened by the sealing control component to open the lower end cylinder 604 and the oil outlet 605 so as to discharge the oil.

[0063] The rotating assembly includes a third gear ring 701 rotatably connected to the top of the annular fixed plate 7, and a fourth gear ring 702 fixed to the upper part of the outer side wall of the upper cylinder 603. Multiple fourth gear rings 702 mesh with the inner side of the third gear ring 701, and a third gear 703 also meshes with the inner side of the third gear ring 701. The position of the third gear 703 is offset from the position of the fourth gear ring 702 and is connected to a motor, which is fixed on the annular fixed plate 7. Through the drive of the motor and the transmission of the third gear 703 and the third gear ring 701, multiple fourth gear rings 702 drive multiple oil-water separation components to rotate, so as to accelerate the separation speed of the separation membrane 601 through centrifugal action.

[0064] The sealing assembly includes a sealing plug 8 located at the top of the lower end plate. The top surface of the sealing plug 8 is a conical surface, and a vertical spring rod 801 is fixed at the center of the bottom surface. The bottom end of the spring rod 801 extends out of the lower end cylinder 604 and is fixed with a circular spring block 802. A spring is provided between the top surface of the spring block 802 and the top surface of the collection box 1. A toggle plate 803 is rotatably connected to the outside of the spring block 802. A drive plate 804 is provided in the collection box 1 at the position corresponding to the toggle plate 803.

[0065] The inner section of the drive plate 804 has a slot at its center, in which a central shaft 805 is fixed. The bottom surface of the collection box 1 has a fixing rod 806, the bottom end of which extends into the slot. The central shaft 805 is rotatably connected to the fixing rod 806 at the bottom of the collection box 1. The actuating plate 803 is located in the slot, and actuating grooves 807 are provided on both sides. Two actuating shafts 808 are rotatably connected to the corresponding positions on the drive plate 804, and the inner ends of the actuating shafts 808 extend into the actuating grooves 807.

[0066] When the sealing control assembly presses down the outer section of the drive plate 804 under the action of the drive assembly, the drive plate 804 rotates around the central axis 805, causing its inner section to move upward. Then, through the action of the actuating shaft 808 and the actuating groove 807, the actuating plate 803 drives the spring block 802, the spring rod 801 and the sealing plug 8 to move upward, thereby opening the lower end cylinder 604 so that oil can be discharged into the annular oil collection pipe 102. After the sealing control assembly disengages from the drive plate 804, the sealing plug 8 and other structures move back to their original positions through the spring, closing the lower end cylinder 604.

[0067] When sealing, the sealing plug 8 contacts the lower end plate. Due to contact friction and the action of springs and oil, it will rotate with the lower end plate. By rotating the spring block 802 and the actuating plate 803, the spring rod 801 and the sealing plug 8 can rotate normally, reducing the restriction on the movement of the sealing plug 8. In addition, the bottom end of the spring can contact the top surface of the spring block 802 but is not fixed to prevent the spring from being twisted.

[0068] The diversion structure includes multiple diversion hoppers 105 that are uniformly fixed along the circumference of the collection box 1. A diversion pipe 106 is fixed in the middle of the bottom of the diversion hopper 105. The bottom end of the diversion pipe 106 extends into the upper cylinder 603 at the corresponding position. The top sides of two adjacent diversion hoppers 105 are in contact with each other and fixed. When the first rotating tube 3 rotates, the liquid enters the corresponding oil-water separation component through the diversion hoppers 105 and the diversion pipe 106.

[0069] Example 2

[0070] The structure of this embodiment is basically the same as that of Embodiment 1. The difference is that the drive assembly includes multiple fixed brackets 403 uniformly fixed on the side wall of the collection box 1, and a vertical drive shaft 4 is rotatably connected to the multiple fixed brackets 403. A first gear 404 is fixed at the top end of the drive shaft 4, a second gear 405 is fixed at the bottom end, and a first bevel gear 401 is fixed in the middle. A second bevel gear 402 meshes with one side of the first bevel gear 401. The second bevel gear 402 is connected to a motor. The motor is fixedly connected to the fixed brackets 403. When the motor is working, it controls the first bevel gear 401 to rotate intermittently, and the rotation of the first bevel gear 401 and the second bevel gear 402 causes the drive shaft 4 to drive the first gear 404 and the second gear 405 to rotate, thereby causing the pipeline movement assembly and the sealing control assembly to work simultaneously, sequentially delivering liquid to the oil-water separation assembly at different positions, and opening the bottom of the oil-water separation assembly on the opposite side.

[0071] The pipeline motion assembly includes a first gear ring 306 rotatably connected to the outer wall of the collection tank 1. The first gear ring 306 meshes with a first gear 404, and the first gear ring 306 is driven by the rotation of the first gear 404. An annular seat 304 is rotatably connected to the upper part of the outer wall of the collection tank 1. A horizontal rotating plate 303 is fixed to the left side of the annular seat 304. The bottom left end of the rotating plate 303 is fixedly connected to the top of the first gear ring 306 through a support block 305. The left side section of the first rotating pipe 3 is fixed to the rotating plate 303, and the bottom end of the liquid outlet 302 passes through and extends out of the rotating plate 303, so that the rotating plate 303 and the annular seat 304 can drive the first rotating pipe 3 to rotate under the action of the first gear ring 306, so as to deliver the liquid to be treated to the oil-water separation assembly at different positions.

[0072] The sealing control component includes a second gear ring 5 rotatably connected to the lower part of the outer wall of the collection box 1. The second gear ring 5 meshes with a second gear 405, which drives the second gear ring 5. A mounting bracket 501 is provided at the bottom right side of the second gear ring 5. A pressure block 502 is fixed at the inner end of the mounting bracket 501. The pressure block 502 is correspondingly connected to the drive plate 804 of the sealing component. The bottom center of the pressure block 502 protrudes downward, and inclined guide surfaces are symmetrically provided on both sides of the protrusion. When the pressure block 502 rotates with the second gear ring 5, it contacts the side of the drive plate 804 of the sealing component through the guide surfaces. When it continues to rotate, the drive plate 804 is moved down through the guide surfaces until the protrusion presses on the drive plate 804.

[0073] When the pressure block 502 moves circumferentially under the action of the second gear ring 5, it gradually contacts the drive plate 804 of the sealing assembly and presses down the outer section of the drive plate 804. This causes the inner section of the drive plate 804 to move the sealing plug 8 upward through the actuating shaft 808 and other structures, opening the lower end plate to discharge the oil. When the pressure block 502 moves away from the drive plate 804, the drive plate 804 and the sealing plug 8 return to their original positions under the action of the spring, closing the lower end plate and the lower end cylinder 604, thereby realizing the control of the opening and closing of the sealing assembly.

[0074] Example 3

[0075] The structure of this embodiment is basically the same as that of Embodiment 1, except that an annular mounting plate 209 is fixed in the middle of the inner wall of the filter box 2. A cylindrical rotating groove 206 is rotatably connected in the annular mounting plate 209. Multiple filter screens 202 are fixed in the rotating groove 206. The inner end of the liquid inlet pipe 201 is located above the right side section of the rotating groove 206 and the filter screens 202. A vertical rotating cylinder is fixed at the center of the multiple filter screens 202. The delivery pipe 205 is located inside the rotating cylinder and outside the rotating groove 206. A transmission bevel gear ring 207 is fixed on the upper part of the wall. A drive bevel gear 208 meshes with one side of the transmission bevel gear ring 207. The drive bevel gear 208 is connected to a motor, which is mounted on the mounting plate. Through the transmission of the motor, the drive bevel gear 208, and the transmission bevel gear ring 207, the rotating groove 206 can drive multiple filter screens 202 to rotate, so that the filter screens 202 can rotate relative to the inner end of the liquid inlet pipe 201. This allows the filtered impurities to be evenly distributed on all parts of the filter screens 202, preventing the accumulation of impurities.

[0076] Example 4

[0077] The structure of this embodiment is basically the same as that of Embodiment 1. The difference is that a fixing net 104 is fixed between the upper part of the side wall of the collection box 1 and the filter box 2. The fixing net 104 is located above the diversion structure and provides protection for the diversion structure and oil-water separation components.

[0078] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] 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 specific implementations. 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 device for separating, collecting, and treating oily wastewater from ships, comprising a cylindrical collection tank (1), a drain pipe (101) disposed in the middle of the bottom of the inner cavity of the collection tank (1), and a filter mechanism disposed at the center of the inner cavity, characterized in that: The filtration mechanism includes a filter box (2), the bottom of which is fixedly connected to the bottom of the collection box (1) by multiple support rods (203), and multiple filter screens (202) are evenly arranged in the lower part of the inner cavity of the filter box (2). An inlet pipe (201) is fixed on the upper part of the right side wall of the filter box (2), and the right end of the inlet pipe (201) passes through and extends out of the collection box (1). The filter box (2) has a pump body (204) in the middle of the bottom. The pump body (204) has a delivery pipe (205) fixed at the top. The top of the delivery pipe (205) is rotatably connected to a second rotating pipe (301). The left side of the second rotating pipe (301) is connected to a first rotating pipe (3). The bottom of the left end of the first rotating pipe (3) is fixed with an outlet (302). The upper part of the outer wall of the collection box (1) is provided with a pipe movement assembly, and the first rotating pipe (3) is connected to the pipe movement assembly. A diversion structure is provided between the upper side wall of the collection box (1) and the filter box (2). An annular fixing plate (7) is fixed on the inner side wall of the collection box (1). Multiple oil-water separation components are evenly arranged and rotatably connected on the annular fixing plate (7) along the circumferential direction, and a rotating component is provided accordingly. The bottom of the oil-water separation component is provided with a sealing component, and the lower part of the collection box (1) is provided with a sealing control component. The sealing control component and the pipeline movement component are both connected to the drive component on the left side wall of the collection box (1). The bottom of the collection box (1) is fixed with an annular oil collection pipe (102). The bottom inner side of the oil-water separation component is fixedly connected to the annular oil collection pipe (102) through the oil drain port (605), and the bottom of the annular oil collection pipe (102) is provided with an oil drain pipe (103). The oil-water separation assembly includes a conical separation screen cylinder (6), a separation membrane (601) is fixed on the inner wall of the separation screen cylinder (6), an upper end plate (602) is fixed at the top of the separation screen cylinder (6), an annular lower end plate is fixed at the bottom, an upper end cylinder (603) is fixed at the center of the upper end plate (602), the upper end cylinder (603) is rotatably connected to the annular fixed plate (7), and is correspondingly connected to the rotating assembly and the diversion structure. The bottom of the collection box (1) is provided with a lower end cylinder (604) corresponding to the position of the lower end plate, and the bottom end of the center hole of the lower end plate is inserted into the lower end cylinder (604). The lower end cylinder (604) is correspondingly connected to the sealing assembly, and the lower end cylinder (604) is connected to the annular oil collection pipe (102) through the oil drain port (605) on the inner side of the bottom. The rotating assembly includes a third gear ring (701) rotatably connected to the top of the annular fixed plate (7), and a fourth gear ring (702) fixed on the upper part of the outer side wall of the upper end cylinder (603). Multiple fourth gear rings (702) mesh with the inner side of the third gear ring (701), and a third gear (703) also meshes with the inner side of the third gear ring (701). The position of the third gear (703) is offset from the position of the fourth gear ring (702), and a motor is connected to it. The motor is fixed on the annular fixed plate (7). The sealing assembly includes a sealing plug (8) located at the top of the lower end plate. A vertical spring rod (801) is fixed at the center of the bottom surface of the sealing plug (8). The bottom end of the spring rod (801) extends out of the lower end cylinder (604) and is fixed with a circular spring block (802). A spring is provided between the top surface of the spring block (802) and the top surface of the collection box (1). A toggle plate (803) is rotatably connected to the outside of the spring block (802). A drive plate (804) is provided in the collection box (1) at the position corresponding to the toggle plate (803). The drive plate (804) has a slot at the center of its inner section, and a central shaft (805) is fixed in the slot. The central shaft (805) is rotatably connected to the bottom of the collection box (1). The actuating plate (803) is located in the slot, and actuating grooves (807) are provided on both sides. Two actuating shafts (808) are rotatably connected to the corresponding positions on the drive plate (804), and the inner end of the actuating shaft (808) extends into the actuating groove (807).

2. The ship oily wastewater separation, collection, and treatment device according to claim 1, characterized in that: The drive assembly includes multiple fixed brackets (403) uniformly fixed on the side wall of the collection box (1), and a vertical drive shaft (4) is rotatably connected to the multiple fixed brackets (403). A first gear (404) is fixed at the top end of the drive shaft (4), a second gear (405) is fixed at the bottom end, and a first bevel gear (401) is fixed in the middle. A second bevel gear (402) meshes with one side of the first bevel gear (401). A motor is connected to the second bevel gear (402), and the motor is fixedly connected to the fixed brackets (403).

3. The ship oily wastewater separation, collection, and treatment device according to claim 2, characterized in that: The pipeline motion assembly includes a first gear ring (306) rotatably connected to the outer wall of the collection box (1), the first gear ring (306) meshing with a first gear (404), an annular seat (304) rotatably connected to the upper part of the outer wall of the collection box (1), a horizontal rotating plate (303) fixed to the left side of the annular seat (304), the bottom left end of the rotating plate (303) being fixedly connected to the top of the first gear ring (306) through a support block (305), the left side section of the first rotating pipe (3) being fixed to the rotating plate (303), and the bottom end of the liquid outlet (302) passing through and extending out of the rotating plate (303).

4. The ship oily wastewater separation, collection, and treatment device according to claim 2, characterized in that: The sealing control assembly includes a second gear ring (5) rotatably connected to the lower part of the outer wall of the collection box (1). The second gear ring (5) meshes with a second gear (405). A mounting bracket (501) is provided at the bottom right side of the second gear ring (5). A pressure block (502) is fixed at the inner end of the mounting bracket (501). The bottom of the pressure block (502) protrudes downward in the middle, and inclined guide surfaces are symmetrically provided on both sides of the protrusion.

5. The ship oily wastewater separation, collection, and treatment device according to claim 1, characterized in that: The diversion structure includes multiple diversion hoppers (105) that are uniformly fixed along the circumference of the collection box (1). A diversion pipe (106) is fixed in the middle of the bottom of the diversion hopper (105), and the top sides of two adjacent diversion hoppers (105) are in contact with each other and fixed.

6. The ship oily wastewater separation, collection, and treatment device according to claim 1, characterized in that: An annular mounting plate (209) is fixed in the middle of the inner side wall of the filter box (2). A cylindrical rotating groove (206) is rotatably connected in the annular mounting plate (209). Multiple filter screens (202) are fixed in the rotating groove (206). A transmission bevel gear ring (207) is fixed on the upper part of the outer side wall of the rotating groove (206). A drive bevel gear (208) is meshed on one side of the transmission bevel gear ring (207). A motor is connected to the drive bevel gear (208).

7. The ship oily wastewater separation, collection, and treatment device according to any one of claims 1 to 6, characterized in that: A fixing mesh (104) is fixed between the upper side walls of the collection box (1) and the filter box (2), and the fixing mesh (104) is located above the diversion structure.

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