Water treatment device for a longline fishing vessel

Abstract

The application is suitable for the technical field of seawater treatment, and provides a water treatment device for an ocean fishing boat, which comprises a precipitation tank for providing a seawater flocculation and precipitation space, an opening is arranged at the bottom of the precipitation tank, a top plate and a bottom plate are respectively detachably installed on the inner wall of the top of the precipitation tank and the bottom of the precipitation tank through bolts, the bottom plate is used for closing the opening, and a threaded rod is rotatably installed between the top plate and the bottom plate. The water treatment device for the ocean fishing boat provided by the scheme can adjust the height of the filter plate to separate the clear liquid and the solid precipitate by cooperating the precipitation tank, the filter plate and the adjusting mechanism, so that the precipitate is prevented from entering the subsequent treatment link, the loss of filter material is reduced, the time and labor cost are reduced, the precipitation tank is convenient to clean, the seawater and the flocculating agent can be stirred and mixed by arranging the adjusting cylinder and the stirring rod, and the reaction efficiency is increased.

Description

Technical Field

[0001] This invention belongs to the field of seawater treatment technology, and in particular relates to a water treatment device for ocean-going fishing vessels. Background Technology

[0002] Distant-water fishing vessels are vessels that specialize in fishing operations outside national jurisdictional waters (such as the high seas or other countries' exclusive economic zones). Their core mission is to obtain fishery resources through continuous navigation and operations. These vessels are usually equipped with advanced fishing equipment, navigation systems, and automation devices, and must meet international technical standards to safeguard maritime rights and resource development strategies. To ensure navigation safety and operational efficiency, distant-water fishing vessels need to carry out two key treatments on seawater: the first treatment is for ballast water management, and the second treatment focuses on ensuring freshwater supply.

[0003] When purifying seawater to ensure freshwater supply, the seawater needs to be treated sequentially by sedimentation, coarse filtration, fine filtration and reverse osmosis. During the flocculation and sedimentation treatment of seawater, the sediment settles in the treatment space. When the upper clear liquid is extracted, it is easy to mix with the clear liquid and enter the next treatment stage. As a result, the filter media inside the coarse filtration system is worn out quickly. Frequent replacement of filter media is not only time-consuming and labor-intensive, but also leads to waste of resources. Summary of the Invention

[0004] This invention provides a water treatment device for ocean-going fishing vessels, aiming to solve the problem mentioned in the background art that when seawater is subjected to flocculation and sedimentation treatment, the precipitate settles in the treatment space and easily mixes with the supernatant during the extraction of the supernatant liquid, thus entering the next treatment stage.

[0005] To solve the above problems, the present invention is implemented as follows: a water treatment device for ocean-going fishing vessels, comprising: a sedimentation tank for providing space for seawater flocculation and sedimentation, the sedimentation tank having an opening at the bottom; a top plate and a bottom plate detachably mounted on the inner wall of the top of the sedimentation tank and the bottom of the sedimentation tank respectively by bolts, the bottom plate being used to close the opening; a threaded rod rotatably mounted between the top plate and the bottom plate; a filter plate threadedly sleeved on the threaded rod for squeezing and separating the clear liquid from the solid sediment; the top plate, bottom plate, and threaded rod are all arranged in groups, the filter plate being threadedly sleeved on the two threaded rods, and an adjustment mechanism for driving the threaded rod to rotate to adjust the height of the filter plate at the bottom of the sedimentation tank.

[0006] Preferably, the bottom of the sedimentation tank is fixed with a support box, and the adjustment mechanism includes mounting brackets detachably mounted on the inner walls of both sides of the support box, drive shafts rotatably mounted on the two mounting brackets respectively, a first chain drive assembly disposed between the two drive shafts for transmission, connecting blocks slidably sleeved on the two drive shafts respectively, connecting cylinders fixed to the bottom of the two threaded rods respectively, the connecting blocks being mounted in the connecting cylinders by connecting bolts, a support shaft rotatably mounted in the support box, a first connecting member disposed between the support shaft and any one of the drive shafts, a motor fixed in the support box, a drive shaft with a coupling mounted on the output shaft of the motor, and a first bevel gear fixed on the drive shaft and the support shaft respectively and meshing with each other for transmission.

[0007] Preferably, the first connecting member includes a first support plate fixed to the top of the support shaft, an electric telescopic rod mounted on the top of the first support plate, a first limiting cylinder fixed to the output rod of the electric telescopic rod, and a first limiting block fixed to the transmission shaft. The electric telescopic rod is used to adjust the height of the first limiting cylinder to adjust the connection and transmission state between the first limiting block and the first limiting cylinder.

[0008] Preferably, the top of the sedimentation tank is provided with a coarse filter tank and a fine filter tank. A first water pump and a second water pump are fixed on both sides of the coarse filter tank, respectively. The inlet and outlet of the first water pump extend into the sedimentation tank and the coarse filter tank, respectively. The inlet and outlet of the second water pump extend into the coarse filter tank and the fine filter tank, respectively. The coarse filter tank is provided with multiple isolation racks for isolating filter media of different fineness. The fine filter tank is provided with filter cartridges for filtering fine impurities.

[0009] Preferably, the bottom plate is provided with a notched ring, and a sealing ring is fixed in the notched ring to contact the outer wall of the bottom of the sedimentation tank for preventing leakage. The sedimentation tank is provided with a replenishment pipe for providing channels for adding seawater and flocculant, and the fine filter tank is provided with a drain pipe for providing channels for discharging clarified liquid. The drain pipe is connected to an external reverse osmosis treatment device.

[0010] Preferably, the sedimentation tank has an operating port on one side for providing a sediment processing channel, and a baffle for closing the operating port is detachably installed on the sedimentation tank. A rubber ring that contacts the outer wall of the sedimentation tank is installed on the baffle. The baffle, the coarse filter tank, and the fine filter tank are all provided with observation windows for displaying the internal structural status.

[0011] Preferably, triangular blocks for strengthening the structure of the support box are fixed on both inner walls of the support box, the support box is provided with a protective door for sealing the support box, and the support box is provided with a plurality of heat dissipation holes for assisting the motor in dissipating heat.

[0012] Preferably, the filter plate consists of an adjusting block threaded onto the threaded rod, a support frame detachably mounted on the adjusting block, and a metal mesh mounted on the support frame. The threaded rod, adjusting block, support frame, and metal mesh are all made of stainless steel.

[0013] Preferably, the drive shaft is provided with a guide groove, and a guide block that is fixedly connected to the connecting block is slidably installed in the guide groove. The guide groove and the guide block are used to limit the movement path of the connecting block.

[0014] Preferably, the first limiting block is a polygonal prism, the first limiting cylinder is provided with a limiting space for accommodating the first limiting block, the first limiting block slides in contact with the inner wall of the limiting space, and the bottom of the support box is provided with an anti-slip pad.

[0015] Compared with related technologies, the water treatment device for ocean-going fishing vessels provided by the present invention has the following beneficial effects: Compared with existing technologies, the water treatment device for ocean-going fishing vessels provided by this solution, through the combination of a sedimentation tank, filter plates and an adjustment mechanism, can adjust the height of the filter plates to isolate the clear liquid from solid sediments, prevent sediments from entering subsequent treatment stages, reduce filter material wear, lower time and labor costs, and facilitate cleaning of the sedimentation tank. By setting up an adjustment cylinder and a stirring rod, seawater and flocculant can be stirred and mixed, increasing reaction efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main sectional view of a water treatment device for ocean-going fishing vessels provided by the present invention; Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure; Figure 3 for Figure 1 An enlarged structural diagram of part B shown in the figure; Figure 4 This is a schematic diagram of the assembly structure of the threaded rod, drive shaft, and support shaft in this invention; Figure 5 This is a cross-sectional view of the fixing frame in this invention; Figure 6 This is a three-dimensional structural diagram of the first limiting block in this invention; Figure 7 for Figure 1 An enlarged structural diagram of section C shown in the figure; Figure 8 This is a schematic diagram of the assembly structure of the regulating cylinder and the stirring rod in this invention; Figure 9A schematic front view of a water treatment device for a deep-sea fishing vessel provided by the present invention; Figure 10 This is a cross-sectional view of the coarse filter tank in this invention.

[0017] Reference numerals: 1. Sedimentation tank; 2. Top plate; 3. Bottom plate; 4. Threaded rod; 5. Filter plate; 6. Support box; 7. Mounting frame; 8. Drive shaft; 9. First chain drive assembly; 10. Support shaft; 11. First support plate; 12. Electric telescopic rod; 13. First limiting cylinder; 14. First limiting block; 15. Connecting block; 16. Connecting cylinder; 17. Motor; 18. Drive shaft; 19. First bevel gear; 20. Adjusting cylinder; 21. Stirring rod; 22. 23. Fixed frame; 24. First connecting shaft; 25. Second chain drive assembly; 26. Second connecting shaft; 27. Second bevel gear; 28. Second support plate; 29. ​​Spring; 20. Second limiting cylinder; 31. Second limiting block; 32. Electromagnet; 33. Connecting frame; 34. Coarse filter tank; 35. Fine filter box; 36. Filter element assembly; 37. First water pump; 38. Second water pump; 39. Baffle; 40. Protective door; 41. Observation window; 42. Isolation frame. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a water treatment device for ocean-going fishing vessels, such as... Figure 1-10 As shown, the water treatment device for ocean-going fishing vessels includes: a sedimentation tank 1 for providing space for seawater flocculation and sedimentation, the sedimentation tank 1 having an opening at the bottom; a top plate 2 and a bottom plate 3, respectively detachably installed on the inner wall of the top of the sedimentation tank 1 and the bottom of the sedimentation tank 1 by bolts, the bottom plate 3 being used to close the opening; a threaded rod 4 rotatably installed between the top plate 2 and the bottom plate 3; a filter plate 5 threadedly sleeved on the threaded rod 4 for squeezing and separating the clear liquid from the solid sediment; the top plate 2, the bottom plate 3, and the threaded rod 4 are all arranged in groups, the filter plate 5 is threadedly sleeved on the two threaded rods 4, and the bottom of the sedimentation tank 1 is provided with an adjustment mechanism for driving the threaded rod 4 to rotate to adjust the height of the filter plate 5.

[0020] In this embodiment, during seawater flocculation and sedimentation treatment, seawater and flocculant are introduced into sedimentation tank 1, and the sediment settles in sedimentation tank 1. When it is necessary to extract the supernatant, the adjustment mechanism at the bottom of sedimentation tank 1 is activated. The adjustment mechanism drives the threaded rod 4 to rotate. The rotation of the threaded rod 4 causes the filter plate 5 to move up and down between the top plate 2 and the bottom plate 3. By adjusting the height of the filter plate 5 to a suitable position, the solid sediment is squeezed under the filter plate 5, thereby isolating the supernatant from the solid sediment. Then the supernatant can be extracted for subsequent coarse filtration, fine filtration and reverse osmosis treatment. When the threaded rod 4 needs to be replaced, the top plate 2 and the bottom plate 3 can be removed from sedimentation tank 1 by removing the bolts. By adjusting the height of filter plate 5 to isolate the clear liquid from solid sediment, sediment can be prevented from entering the subsequent coarse filtration system, reducing the wear of filter media inside the coarse filtration system, reducing the time and labor costs caused by frequent replacement of filter media, and avoiding resource waste. The threaded rod 4 can be removed by disassembling the top plate 2 and the bottom plate 3, which facilitates the cleaning and maintenance of the sedimentation tank 1 and ensures the normal operation of the water treatment device.

[0021] In a further preferred embodiment of the present invention, a support box 6 is fixed to the bottom of the sedimentation tank 1. The adjustment mechanism includes mounting brackets 7 detachably mounted on the inner walls of both sides of the support box 6, transmission shafts 8 rotatably mounted on the two mounting brackets 7 respectively, a first chain drive group 9 disposed between the two transmission shafts 8 for transmission, connecting blocks 15 slidably sleeved on the two transmission shafts 8 respectively, connecting cylinders 16 fixed to the bottom of the two threaded rods 4 respectively, the connecting blocks 15 being mounted in the connecting cylinders 16 by connecting bolts, a support shaft 10 rotatably mounted in the support box 6, a first connecting member disposed between the support shaft 10 and any one of the transmission shafts 8, a motor 17 fixed in the support box 6, a drive shaft 18 with a coupling mounted on the output shaft of the motor 17, and a first bevel gear 19 fixed on the drive shaft 18 and the support shaft 10 respectively and meshing with each other for transmission.

[0022] In this embodiment, when the height of the filter plate 5 needs to be adjusted, the motor 17 is started. The motor 17 drives the drive shaft 18 to rotate through the coupling. The drive shaft 18 transmits power to the support shaft 10, causing the support shaft 10 to rotate. The support shaft 10 drives one of the transmission shafts 8 to rotate through the first connecting member. This transmission shaft 8 drives the other transmission shaft 8 to rotate synchronously through the first chain drive group 9. When the two transmission shafts 8 rotate, they respectively drive the connecting block 15, which is slidably sleeved on it, to rotate. Since the connecting block 15 is installed in the connecting cylinder 16 by connecting bolts, and the connecting cylinder 16 is fixed to... At the bottom of the threaded rod 4, the connecting block 15 will drive the threaded rod 4 to rotate. When the threaded rod 4 rotates, the filter plate 5, which is threaded and sleeved on its outside, moves up and down between the top plate 2 and the bottom plate 3 to adjust the height of the filter plate 5, thereby isolating the clear liquid from the solid sediment. If it is necessary to maintain the adjustment mechanism or replace the parts, the mounting bracket 7 can be removed from the inner walls on both sides of the support box 6 to operate the drive shaft 8, the first chain drive group 9, and other components. Alternatively, the connecting bolts can be removed to separate the connecting block 15 from the connecting cylinder 16, and the relevant parts of the threaded rod 4 or the drive shaft 8 can be processed separately. By setting a detachable mounting bracket 7, it is convenient to install, disassemble and maintain transmission components such as the drive shaft 8 and the first chain drive group 9. By setting the cooperation of the motor 17, drive shaft 18, first bevel gear 19, support shaft 10, first connector, drive shaft 8, first chain drive group 9, connecting block 15, connecting cylinder 16 and threaded rod 4, the height of filter plate 5 can be adjusted, effectively separating the clear liquid from solid sediments, preventing sediments from entering subsequent treatment stages and reducing filter material wear.

[0023] In a further preferred embodiment of the present invention, the first connecting member includes a first support plate 11 fixed to the top of the support shaft 10, an electric telescopic rod 12 mounted on the top of the first support plate 11, a first limiting cylinder 13 fixed to the output rod of the electric telescopic rod 12, and a first limiting block 14 fixed to the transmission shaft 8. The electric telescopic rod 12 is used to adjust the height of the first limiting cylinder 13 to adjust the connection and transmission state between the first limiting block 14 and the first limiting cylinder 13.

[0024] In this embodiment, during normal operation, the electric telescopic rod 12 is activated, causing its output rod to extend and drive the first limiting cylinder 13 to rise to a suitable height. At this time, the first limiting block 14 fixed on the transmission shaft 8 is embedded in the first limiting cylinder 13. When the motor 17 drives the support shaft 10 to rotate through the drive shaft 18 and the first bevel gear 19, the first support plate 11 at the top of the support shaft 10 rotates accordingly, thereby driving the electric telescopic rod 12 and the first limiting cylinder 13 to rotate. Since the first limiting block 14 is embedded in the first limiting cylinder 13, the rotation of the first limiting cylinder 13 will drive the first limiting block 14 and the transmission shaft 8 to rotate. The transmission shaft 8 then drives another transmission shaft 8 to rotate synchronously through the first chain transmission group 9. When the rotation of the transmission shaft 8 is not required, the electric telescopic rod 12 is activated, causing its output rod to retract and driving the first limiting cylinder 13 to descend, so that the first limiting block 14 is separated from the first limiting cylinder 13. At this time, the rotation of the support shaft 10 will not be transmitted to the transmission shaft 8. The first support plate 11 provides a stable installation base for the electric telescopic rod 12, ensuring that the electric telescopic rod 12 can work normally. The electric telescopic rod 12 allows the height of the first limiting cylinder 13 to be flexibly adjusted. By controlling the connection and separation state between the first limiting cylinder 13 and the first limiting block 14, it is possible to conveniently control whether the transmission shaft 8 receives the power transmitted by the support shaft 10, thereby realizing flexible control of the height adjustment of the filter plate 5. When the height of the filter plate 5 needs to be adjusted, the transmission system can work normally. When no adjustment is needed or maintenance of the adjustment mechanism is required, the power transmission can be cut off to reduce unnecessary wear and energy consumption.

[0025] In a further preferred embodiment of the present invention, the top of the sedimentation tank 1 is provided with a coarse filter tank 33 and a fine filter tank 34. A first water pump 36 and a second water pump 37 are fixed on both sides of the coarse filter tank 33, respectively. The inlet and outlet ends of the first water pump 36 extend into the sedimentation tank 1 and the coarse filter tank 33, respectively. The inlet and outlet ends of the second water pump 37 extend into the coarse filter tank 33 and the fine filter tank 34, respectively. The coarse filter tank 33 is provided with a plurality of isolation racks 41 for isolating filter media of different fineness. The fine filter tank 34 is provided with a filter element assembly 35 for filtering fine impurities.

[0026] In this embodiment, after the sedimentation tank 1 completes the seawater sedimentation treatment and the upper clear liquid and solid sediment are effectively separated, the first water pump 36 is started. The inlet end of the first water pump 36 draws the upper clear liquid from the sedimentation tank 1, and the outlet end delivers the clear liquid to the coarse filter tank 33. After the clear liquid enters the coarse filter tank 33, it passes through filter media of different fineness separated by multiple isolation racks 41 for coarse filtration to remove larger particles of impurities. After coarse filtration is completed, the second water pump 37 is started. The inlet end of the second water pump 37 draws the coarsely filtered seawater from the coarse filter tank 33, and the outlet end delivers the seawater to the fine filter tank 34. After the seawater enters the fine filter tank 34, it passes through the filter element group 35 for fine filtration to further filter out fine impurities and finally obtain a clear liquid that meets the requirements. By setting a coarse filter tank 33 and a fine filter tank 34 at the top of the sedimentation tank 1, and cooperating with a first water pump 36 and a second water pump 37, the first water pump 36 and the second water pump 37 can transport seawater from one treatment stage to the next, ensuring the continuity and stability of seawater treatment. By setting multiple isolation racks 41 in the coarse filter tank 33 to isolate filter media of different fineness, the filter can be graded according to the size of impurities, which improves the coarse filtration effect and efficiency and extends the service life of the subsequent fine filter cartridge group 35. The filter cartridge group 35 in the fine filter tank 34 can perform deep filtration of seawater, effectively remove fine impurities, and ensure that the quality of the final clear liquid meets the usage standards.

[0027] In a further preferred embodiment of the present invention, a notched ring is provided in the bottom plate 3, and a sealing ring for preventing leakage is fixed in the notched ring and contacts the bottom outer wall of the sedimentation tank 1. The sedimentation tank 1 is provided with a replenishment pipe for providing channels for adding seawater and flocculant, and the fine filter tank 34 is provided with a drain pipe for providing channels for discharging clear liquid. The drain pipe is connected to an external reverse osmosis treatment device.

[0028] In this embodiment, when installing the base plate 3, the base plate 3 is installed at the bottom of the sedimentation tank 1. At this time, the sealing ring fixed in the concave ring in the base plate 3 is in close contact with the outer wall of the bottom of the sedimentation tank 1 to form a sealing structure, preventing the seawater in the sedimentation tank 1 from leaking during the treatment process. When seawater treatment is required, seawater and flocculant are added to the sedimentation tank 1 through the liquid replenishment pipe on the sedimentation tank 1. The seawater and flocculant are mixed in the sedimentation tank 1 and undergo flocculation and sedimentation treatment. The clear liquid after sedimentation treatment is filtered through the coarse filter tank 33 and the fine filter tank 34 in sequence to finally obtain a relatively pure clear liquid. This clear liquid is discharged to the external reverse osmosis treatment equipment through the drain pipe on the fine filter tank 34 for further treatment to obtain fresh water that meets the usage standards. The sealing ring installed in the concave ring of the bottom plate 3 effectively enhances the sealing of the bottom of the sedimentation tank 1, preventing leakage during seawater treatment, ensuring a stable and clean treatment environment, and reducing the risk of equipment damage and reduced treatment efficiency caused by leakage. The liquid replenishment pipe installed on the sedimentation tank 1 provides a convenient channel for the addition of seawater and flocculant, allowing operators to replenish materials in a timely manner according to treatment needs. By connecting the drain pipe on the fine filter tank 34 to the external reverse osmosis treatment equipment, the clarified liquid after preliminary filtration can smoothly enter the subsequent treatment stages, forming a complete seawater treatment chain.

[0029] In a further preferred embodiment of the present invention, an operating port for providing a sediment processing channel is provided on one side of the sedimentation tank 1, and a baffle 38 for closing the operating port is detachably installed on the sedimentation tank 1. A rubber ring that contacts the outer wall of the sedimentation tank 1 is installed on the baffle 38. The baffle 38, the coarse filter tank 33 and the fine filter tank 34 are all provided with observation windows 40 for displaying the internal structural status.

[0030] In this embodiment, when the device is operating normally, the baffle 38 is in a closed operating port state, and the rubber ring is in close contact with the outer wall of the sedimentation tank 1 to ensure the sealing of the sedimentation tank 1 and prevent seawater and sediment from leaking. When a certain amount of sediment accumulates in the sedimentation tank 1 and needs to be cleaned, or when internal components need to be repaired and maintained, the baffle 38 is removed from the sedimentation tank 1 and the operating port is opened. The staff can process the sediment in the sedimentation tank 1 or repair and replace internal components through the operating port. After processing or repair, the baffle 38 is reinstalled on the sedimentation tank 1 to close the operating port. During the operation of the device, the staff can observe the accumulation of sediment in the sedimentation tank 1, the usage status of the filter media in the coarse filter tank 33, and the working status of the filter element group 35 in the fine filter tank 34 at any time through the observation window 40. By setting an operating port and installing a baffle 38 on one side of the sedimentation tank 1, a convenient passage is provided for cleaning sediment and inspecting and maintaining internal components, which improves the maintainability and service life of the equipment. By installing a rubber ring on the baffle 38, the sealing effect is enhanced, effectively preventing seawater and sediment leakage and ensuring the stability and cleanliness of the treatment environment. By setting an observation window 40, staff can understand the internal structural status in real time without opening the equipment, which facilitates the timely detection of potential problems and the taking of corresponding measures.

[0031] In a further preferred embodiment of the present invention, triangular blocks for strengthening the structure of the support box 6 are fixed on both inner walls of the support box 6, the support box 6 is provided with a protective door 39 for sealing the support box 6, and the support box 6 is provided with a plurality of heat dissipation holes for assisting the motor 17 in dissipating heat.

[0032] In this embodiment, when the support box 6 is subjected to the force generated by the operation of the internal components and the possible external forces, the triangular block will distribute and transmit the force, thereby enhancing the overall structural strength of the support box 6. When it is necessary to inspect, maintain or debug the internal adjustment mechanism and other components of the support box 6, the protective door 39 provided on the support box 6 can be opened, and the staff can easily enter the support box 6 to operate. After the operation is completed, the protective door 39 is closed. By fixing triangular blocks on the inner walls of both sides of the support box 6, the structural strength of the support box 6 is effectively improved, enabling it to better withstand the various forces brought about by the operation of internal components and the external environment. This reduces the possibility that the support box 6 may affect the normal operation of internal components due to deformation under stress. By setting a protective door 39 on the support box 6, it is convenient for staff to inspect, maintain and debug the internal components, thereby improving the maintainability of the equipment and reducing maintenance costs and time.

[0033] In a further preferred embodiment of the present invention, the filter plate 5 consists of an adjusting block threaded onto the threaded rod 4, a support frame detachably mounted on the adjusting block, and a metal mesh mounted on the support frame. The threaded rod 4, the adjusting block, the support frame, and the metal mesh are all made of stainless steel.

[0034] In this embodiment, when the threaded rod 4 rotates under the drive of the drive device, the adjusting block will move linearly along the axial direction of the threaded rod 4. When the adjusting block moves, it drives the support frame that is detachably installed to move synchronously, and the metal mesh installed on the support frame also moves together, thereby realizing the adjustment of the height of the filter plate 5 in the sedimentation tank 1. When it is necessary to maintain the filter plate 5, replace the metal mesh, or clean the support frame, the support frame can be removed from the adjusting block and the corresponding operation can be performed. By setting the adjusting block to cooperate with the threaded rod 4, the height adjustment of the filter plate 5 is stable, and the position of the filter plate 5 can be flexibly adjusted according to different seawater treatment needs. By setting the detachable support frame and adjusting block, it is convenient to maintain the filter plate 5 and replace parts. When the metal mesh is damaged or needs to be cleaned, there is no need to replace the entire filter plate 5, which reduces maintenance costs and time.

[0035] In a further preferred embodiment of the present invention, the transmission shaft 8 is provided with a guide groove, and a guide block fixedly connected to the connecting block 15 is slidably installed in the guide groove. The guide groove and the guide block are used to limit the movement path of the connecting block 15.

[0036] In this embodiment, by setting a guide groove to cooperate with the connecting block 15, a guiding function is provided for the movement of the connecting block 15, which can ensure that the connecting block 15 moves along the set path during the movement, avoiding problems such as component collision and jamming caused by movement deviation, and improving the stability and reliability of the device operation.

[0037] In a further preferred embodiment of the present invention, the first limiting block 14 is a polygonal prism, the first limiting cylinder 13 is provided with a limiting space for accommodating the first limiting block 14, the first limiting block 14 slides in contact with the inner wall of the limiting space, and the bottom of the support box 6 is provided with an anti-slip pad.

[0038] In this embodiment, when the transmission component connected to the first limiting block 14 moves, the first limiting block 14 will drive the first limiting cylinder 13 to move. By adopting a first limiting block 14 with a polygonal prism structure and cooperating with the limiting space of the first limiting cylinder 13, the excessive rotation or deviation from the predetermined track of related components during movement can be avoided, thereby improving the overall reliability and safety of the device. By setting anti-slip pads at the bottom of the support box 6, the stability of the device in the complex working environment of the fishing boat is enhanced.

[0039] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, an adjusting cylinder 20 rotatably installed inside the support box 6 and rotatably connected to the sedimentation tank 1 is provided. A stirring rod 21 that can extend outside the adjusting cylinder 20 is slidably installed inside the adjusting cylinder 20. A connecting frame 32 that can move through the filter plate 5 is fixed on the stirring rod 21.

[0040] In this embodiment, when the device is running, the adjusting cylinder 20 inside the support box 6 starts to rotate. As the adjusting cylinder 20 rotates, the stirring rod 21 also rotates, fully mixing the flocculant and seawater. Since the connecting frame 32 fixed on the stirring rod 21 moves through the filter plate 5, the stirring rod 21 extends and retracts when the height of the filter plate 5 is adjusted, preventing structural interference. By setting the adjusting cylinder 20 in conjunction with the stirring rod 21, the stirring rod 21 can not only realize the rotation stirring function, but also be extended and retracted according to actual needs, ensuring the stirring and mixing function while preventing structural interference.

[0041] In another embodiment of the present invention, a fixing frame 22 is fixed inside the support box 6, a first connecting shaft 23 is rotatably mounted on the fixing frame 22, a second chain drive assembly 24 for transmission is provided between the first connecting shaft 23 and the adjusting cylinder 20, a second connecting shaft 25 is rotatably mounted on the fixing frame 22, a second bevel gear 26 is fixed on both the second connecting shaft 25 and the drive shaft 18, the two second bevel gears 26 mesh for transmission, and a second connecting member is provided between the first connecting shaft 23 and the second connecting shaft 25.

[0042] In this embodiment, the drive shaft 18 starts to rotate under the drive of the power source (motor 17). According to the principle of bevel gear transmission, the rotation of the drive shaft 18 will drive the second connecting shaft 25 to rotate synchronously on the fixed frame 22. When the second connecting shaft 25 rotates, it transmits power to the first connecting shaft 23 through the second connecting member, so that the first connecting shaft 23 also rotates on the fixed frame 22. The rotation of the first connecting shaft 23 is transmitted to the regulating cylinder 20 through the second chain drive group 24, thereby driving the regulating cylinder 20 to rotate in the support box 6, providing power for the regulating cylinder 20 to drive the stirring rod 21 and other components to work, and realizing the stirring operation in the seawater treatment process. The transmission structure of the second bevel gear 26 set on the fixed frame 22 can change the direction of power transmission, so that the power of the drive shaft 18 can be flexibly transmitted to the second connecting shaft 25, and then transmitted to the adjusting cylinder 20 through the second connecting piece and the first connecting shaft 23, forming a multi-stage transmission, which increases the flexibility and adaptability of the device's power transmission. The stability and reliability of power transmission are enhanced by setting the second chain drive group 24.

[0043] In another embodiment of the present invention, the second connecting member includes a second support plate 27 fixed to the top of the second connecting shaft 25, a spring 28 installed on the top of the second support plate 27, a second limiting cylinder 29 fixed to the top of the spring 28, and a second limiting block 30 fixed to the bottom of the first connecting shaft 23. The second limiting cylinder 29 can be sleeved on the second limiting block 30 for transmission. An electromagnet 31 is fixed on the second support plate 27 for attracting the second limiting cylinder 29 to disconnect the connection between the second limiting cylinder 29 and the second limiting block 30.

[0044] In this embodiment, when the device is operating normally, the electromagnet 31 is in an unenergized state. At this time, the spring 28 pushes the second limiting cylinder 29 upward by its own elasticity, so that the second limiting cylinder 29 is sleeved outside the second limiting block 30. When the second connecting shaft 25 rotates, its top second support plate 27 rotates accordingly, thereby driving the first connecting shaft 23 to rotate, realizing the transmission of power from the second connecting shaft 25 to the first connecting shaft 23. When it is necessary to disconnect the transmission, the electromagnet 31 is energized, and the electromagnet 31 generates magnetic attraction to the second limiting cylinder 29, so that the second limiting cylinder 29 overcomes the elastic force of the spring 28 and moves downward, thereby detaching from the second limiting block 30 and disconnecting the power transmission between the second connecting shaft 25 and the first connecting shaft 23. By energizing and de-energizing the electromagnet 31, the connection and disconnection of the second limiting cylinder 29 and the second limiting block 30 can be conveniently and quickly controlled, thereby realizing the on / off of power transmission between the second connecting shaft 25 and the first connecting shaft 23. This allows the device to flexibly adjust the transmission state according to actual needs at different working stages, improving the ease of operation and controllability of the device.

[0045] In another embodiment of the present invention, a guide rod is fixed to the top of the second support plate 27, which movably passes through the spring 28 and extends to the top of the second limiting cylinder 29, for limiting the extension and retraction path of the spring 28.

[0046] In this embodiment, when the second connecting shaft 25 rotates and drives the second support plate 27 to rotate, the rotational power is effectively transmitted because the top of the second support plate 27 is fixed with a guide rod, and the guide rod moves through the spring 28 and extends to the top of the second limiting cylinder 29. By setting the guide rod, the extension and retraction path of the spring 28 is limited, which effectively prevents the spring 28 from shifting its position due to uneven force or other factors during the extension and retraction process, thus ensuring the stability and reliability of the spring 28.

[0047] In summary, compared with related technologies, this device, by setting up a sedimentation tank 1, a filter plate 5, and an adjustment mechanism, can adjust the height of the filter plate 5 to isolate the clear liquid from the solid precipitate, preventing the precipitate from entering the subsequent treatment stage, reducing filter material wear, lowering time and labor costs, and facilitating the cleaning of the sedimentation tank 1. By setting up an adjustment cylinder 20 and a stirring rod 21, seawater and flocculant can be stirred and mixed, increasing reaction efficiency.

[0048] It is worth noting that all circuits, electronic components, and modules involved in this invention are existing technologies (motor 17 can be a YE4 / YE5 series high-efficiency three-phase asynchronous motor, electric telescopic rod 12 can be an SXTL small electric push rod telescopic rod, the first water pump 36 and the second water pump 37 are of the same model, which can be QH series (such as 250QH, 200QH, etc.) or AT / Jin'aote brand 250QH series. All of the above electrical appliances can be replaced by other models of electrical appliances with the same function to achieve the target effect). Those skilled in the art can fully implement these technologies, so there is no need to elaborate. The content protected by this invention does not involve improvements to software and methods. This solution also includes an electrical control cabinet, which is installed on the equipment. During use, each electrical device can be started through the electrical control cabinet. The power connection method of each electrical device is an existing mature technology, which is well known to those skilled in the art, and will not be elaborated further here.

[0049] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A water treatment device for ocean-going fishing vessels, characterized in that, include: A sedimentation tank for providing space for seawater flocculation and sedimentation, wherein the bottom of the sedimentation tank is provided with an opening; The top plate and bottom plate, which are detachably installed on the inner wall of the top of the sedimentation tank and the bottom of the sedimentation tank respectively, are used to close the opening; Rotary threaded rod installed between the top plate and the bottom plate; A filter plate with a threaded sleeve on the outside of the threaded rod is used to squeeze and separate the clear liquid from the solid precipitate; The top plate, bottom plate, and threaded rods are all arranged in groups. The filter plate is threaded onto the two threaded rods. The bottom of the sedimentation tank is provided with an adjustment mechanism for driving the threaded rods to rotate and adjust the height of the filter plate.

2. The water treatment device for ocean-going fishing vessels as described in claim 1, characterized in that, The bottom of the sedimentation tank is fixed with a support box. The adjustment mechanism includes mounting brackets detachably mounted on the inner walls of both sides of the support box, drive shafts rotatably mounted on the two mounting brackets respectively, a first chain drive assembly disposed between the two drive shafts for transmission, connecting blocks slidably sleeved on the two drive shafts respectively, connecting cylinders fixed to the bottom of the two threaded rods respectively, the connecting blocks being mounted in the connecting cylinders by connecting bolts, a support shaft rotatably mounted in the support box, a first connecting member disposed between the support shaft and any one of the drive shafts, a motor fixed in the support box, a drive shaft with a coupling mounted on the output shaft of the motor, and a first bevel gear fixed on the drive shaft and the support shaft respectively and meshing with each other for transmission.

3. The water treatment device for ocean-going fishing vessels as described in claim 2, characterized in that, The first connecting member includes a first support plate fixed to the top of the support shaft, an electric telescopic rod mounted on the top of the first support plate, a first limiting cylinder fixed to the output rod of the electric telescopic rod, and a first limiting block fixed to the transmission shaft. The electric telescopic rod is used to adjust the height of the first limiting cylinder to adjust the connection and transmission state between the first limiting block and the first limiting cylinder.

4. The water treatment device for ocean-going fishing vessels as described in claim 1, characterized in that, The top of the sedimentation tank is equipped with a coarse filter tank and a fine filter tank. A first water pump and a second water pump are fixed on both sides of the coarse filter tank, respectively. The inlet and outlet of the first water pump extend into the sedimentation tank and the coarse filter tank, respectively. The inlet and outlet of the second water pump extend into the coarse filter tank and the fine filter tank, respectively. The coarse filter tank is equipped with multiple isolation racks to isolate filter media of different fineness. The fine filter tank is equipped with filter cartridges for filtering fine impurities.

5. The water treatment device for ocean-going fishing vessels as described in claim 4, characterized in that, The bottom plate is provided with a notched ring, and a sealing ring is fixed in the notched ring to contact the outer wall of the bottom of the sedimentation tank for preventing leakage. The sedimentation tank is provided with a replenishment pipe for providing channels for adding seawater and flocculant. The fine filter tank is provided with a drain pipe for providing channels for discharging clarified liquid. The drain pipe is connected to an external reverse osmosis treatment device.

6. The water treatment device for ocean-going fishing vessels as described in claim 4, characterized in that, The sedimentation tank has an operating port on one side for providing a sediment processing channel. A baffle for closing the operating port is detachably installed on the sedimentation tank. A rubber ring that contacts the outer wall of the sedimentation tank is installed on the baffle. The baffle, the coarse filter tank, and the fine filter tank are all provided with observation windows for displaying the internal structural status.

7. The water treatment device for ocean-going fishing vessels as described in claim 2, characterized in that, Triangular blocks are fixed on both inner walls of the support box to strengthen the structure of the support box. The support box is provided with a protective door for sealing the support box and multiple heat dissipation holes for assisting the motor in dissipating heat.

8. The water treatment device for ocean-going fishing vessels as described in claim 1, characterized in that, The filter plate consists of an adjusting block threaded onto the threaded rod, a support frame detachably mounted on the adjusting block, and a metal mesh mounted on the support frame. The threaded rod, adjusting block, support frame, and metal mesh are all made of stainless steel.

9. The water treatment device for ocean-going fishing vessels as described in claim 2, characterized in that, The drive shaft is provided with a guide groove, and a guide block that is fixedly connected to the connecting block is slidably installed in the groove. The guide groove and the guide block are used to limit the movement path of the connecting block.

10. The water treatment device for ocean-going fishing vessels as described in claim 3, characterized in that, The first limiting block is a polygonal prism, and the first limiting cylinder has a limiting space for accommodating the first limiting block. The first limiting block slides in contact with the inner wall of the limiting space, and the bottom of the support box is provided with an anti-slip pad.

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