Advanced treatment device and treatment method for ship ballast water

Abstract

The invention relates to the technical field of ship ballast water treatment, and particularly discloses a ship ballast water advanced treatment device and method.The ship ballast water advanced treatment device comprises a base, supporting legs are fixedly installed at the four corners of the top of the base, and a treatment tank is fixedly installed at the tops of the supporting legs. A set of complete and efficient ballast water treatment flow is constructed, large-particle impurities are effectively intercepted by the filtering mechanism, and the burden of subsequent treatment is relieved; the stirring mechanism realizes full mixing of the disinfectant and the ballast water, so that the disinfection effect is improved; and finally, the treated ballast water flows into a purifier and is sequentially purified layer by layer through an activated carbon filter element, an ultrafiltration membrane filter element, a nanofiltration membrane filter element and a reverse osmosis membrane filter element, tiny impurities, bacteria, viruses and various pollutants in the water are further removed, and the treatment quality of the ballast water is improved in the whole process.

Description

Technical Field

[0001] The present invention relates to the technical field of ship ballast water treatment, in particular to a ship ballast water deep treatment device and a treatment method. Background Art

[0002] Ship ballast water is water injected into the ballast tank of a ship to ensure safe navigation, stable operation and reasonable draft of the ship. This water usually comes from the sea area where the ship is located. The weight distribution and stability of the ship will change at different stages of navigation, such as when the ship is empty or when the cargo volume changes. By adjusting the amount and distribution of ballast water, the weight of the ship can be effectively balanced to ensure that the ship has good stability and maneuverability during navigation, and avoid the risk of the ship tilting or even capsizing due to the shift of the center of gravity. However, the transfer of ship ballast water between different sea areas may lead to the invasion of marine organisms and cause serious damage to the local marine ecosystem. Therefore, the effective management and treatment of ship ballast water is particularly important;

[0003] In the context of the booming shipping industry today, ships will inevitably discharge ballast water from the bottom of the ship into the marine environment during routine operations such as cargo loading and unloading and drainage. However, this ballast water is not clean water, but rich in sediments, bacteria and other pollutants, which pose a serious threat to the marine ecosystem, greatly destroy the ecological balance of the ocean, and cause many environmental problems. Therefore, it is urgent to effectively treat ship ballast water to achieve environmental protection goals;

[0004] The existing technology for the treatment of ship ballast water is mainly concentrated in the field of filtration and purification. Usually, the ballast water is firstly filtered with a filter, and then disinfectant is added and stirred and disinfected with the help of a stirring device. However, this treatment method has significant defects. On the one hand, in the filtration process, impurities intercepted by the filter are very easy to adhere to the outer surface of the filter. With the continuous accumulation of impurities, the filter is frequently blocked, resulting in the need to frequently clean the filter, which seriously affects the ballast water treatment efficiency and increases the operating cost and time cost. On the other hand, the stirring structure design is too simple, mostly a single stirring frame stirring clockwise, which is very easy to produce vortex phenomenon during the stirring process, making it impossible for the ballast water to achieve uniform up and down rolling, which in turn causes the disinfectant to be unable to fully contact and play a role in the ballast water, greatly reducing the disinfection effect and limiting the overall treatment capacity. In summary, in order to improve the treatment effect of ship ballast water, it is urgent to carry out innovative improvement and design of existing treatment technologies and equipment. Summary of the invention

[0005] The object of the present invention is to provide a ship ballast water deep treatment device and treatment method to solve the problem that the existing technology cannot treat ballast water more efficiently during application as mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides a ship ballast water deep treatment device, comprising a base, support legs are fixedly installed at the four corners of the top of the base, a treatment tank body is fixedly installed on the top of the support legs, a filtering mechanism is installed on the top of the treatment tank body by bolts, a stirring mechanism is movably installed on the bottom of the filtering mechanism, the stirring mechanism is rotatably connected to the inside of the treatment tank body, a driving mechanism is fixedly installed on the upper end of the treatment tank body at the outside of the filtering mechanism, the output end of the driving mechanism is transmission-connected to the top of the filtering mechanism, a drain valve is fixedly installed on the bottom of the treatment tank body, and a purifier is fixedly installed on the output end of the drain valve;

[0007] The filtering mechanism includes a conical filter screen, which is installed on the top of the processing tank body by bolts. A collecting assembly is provided on the outside of the conical filter screen. The stirring mechanism is installed on the bottom of the conical filter screen. A cleaning assembly is rotatably connected to the outer surface of the conical filter screen. The bottom of the cleaning assembly passes through the conical filter screen and is connected to the top of the stirring mechanism.

[0008] Furthermore, the driving mechanism includes a support frame, which is fixedly installed on the rear side of the upper end of the processing tank body, and a top plate is fixedly installed on the top of the support frame. A driving motor is fixedly installed on the top of the top plate, and an output end of the driving motor passes through the top plate and is fixedly installed with a first gear, and the first gear is meshingly connected to the cleaning component.

[0009] Furthermore, a connecting arm is fixedly installed on the inner side of the support frame, a ring-shaped tube is fixedly installed on the end of the connecting arm, drainage pipes are fixedly installed at equal intervals on the bottom of the ring-shaped tube, a water filling pipe is fixedly installed on the outer side of the ring-shaped tube, and a water filling bucket is fixedly installed on the top of the water filling pipe.

[0010] Furthermore, the interior of the purifier is linearly arranged at equal intervals and is provided with an activated carbon filter element, an ultrafiltration membrane filter element, a nanofiltration membrane filter element and a reverse osmosis membrane filter in sequence, the interior of the activated carbon filter element is composed of an activated carbon adsorption plate, the interior of the ultrafiltration membrane filter element is composed of a polyvinylidene fluoride filter layer material, the interior of the nanofiltration membrane filter element is composed of a sulfonated polyethersulfone filter layer material, the interior of the reverse osmosis membrane filter is composed of an aromatic polyamide filter layer material, and a discharge pipe is fixedly connected to the outside of the purifier, and a connecting flange is fixedly installed at the outer end of the discharge pipe.

[0011] Furthermore, the cleaning assembly includes a rotating shaft, which is rotatably connected to the middle part of the conical filter screen, and a cleaning arm is fixedly connected to the upper end of the outer surface of the rotating shaft at equal intervals, and a cleaning brush plate is fixedly installed on the inner side of the cleaning arm, and the inner side of the cleaning brush plate is fit-connected to the outer surface of the conical filter screen, and a second gear is fixedly installed on the top of the rotating shaft, and the second gear is meshingly connected to the first gear, and the bottom of the rotating shaft is connected to the top of the stirring mechanism.

[0012] Furthermore, the stirring mechanism includes fixed columns, which are arranged in a ring at equal intervals and fixedly installed at the bottom of the conical filter. A ring frame is fixedly installed at the bottom of the fixed column. A transmission assembly is provided at the bottom of the ring frame. A stirring assembly is installed at the bottom of the transmission assembly. The stirring assembly is movably installed inside the processing tank.

[0013] Furthermore, the transmission assembly includes a cross and an inner gear ring, the cross is fixedly mounted on the bottom of the rotating shaft, the inner gear ring is fixedly mounted on the bottom of the annular frame, the outer end of the bottom of the cross is equidistantly arranged in a ring shape and rotatably connected to an external gear, the bottom of the cross is located on the inner side of the external gear and is equidistantly arranged in a ring shape and rotatably connected to an internal gear, the internal gear and the external gear are meshingly connected, and the stirring assembly is arranged at the bottom of the cross.

[0014] Furthermore, the stirring assembly includes an auger and a stirring frame, the auger is fixedly installed at the bottom of the cross, the stirring frames are fixedly installed at the bottom of each internal gear, and stirring plates are fixedly installed on the inner side of the stirring frame at equal intervals and linearly arranged, and the lower end of the auger and the lower end of the processing tank are both conically arranged.

[0015] Furthermore, the collecting assembly includes an annular guide bucket and a scratch frame. The cross-sectional shape of the annular guide bucket is V-shaped. A discharge pipe is fixedly installed on one side of the bottom of the annular guide bucket. A collecting box is fixedly installed on the outer end of the discharge pipe. The top of the discharge pipe is connected to the interior of the guide bucket. The lower end of the interior of the collecting box is slidably connected to a collecting drawer. Both ends of the outer side of the collecting drawer are fixedly connected with magnetic plates. The magnetic plate and the collecting box are magnetically connected. The scratch frame is fixedly installed on the outer end of the cleaning arm, and the bottom of the scratch frame is fit-connected to the top of the annular guide bucket.

[0016] A method for deep treatment of ship ballast water comprises the following steps:

[0017] S1: Use sand filter to filter the ballast water preliminarily to remove larger impurities;

[0018] S2: The ballast water after preliminary filtration is injected into the water adding bucket, guided into the annular pipe through the water adding bucket, and then transported to the top center of the conical filter through the drainage pipe;

[0019] S3: Start the driving motor, the motor drives the first gear to rotate, drives the second gear to operate, causes the rotating shaft to rotate, drives the cleaning arm to rotate, the cleaning brush plate cleans the conical filter screen, the scratch frame cleans the annular guide bucket, and the impurities fall into the collection drawer in the collection box;

[0020] S4: The driving motor runs, driving the rotating shaft to rotate, and the cross at the bottom of the rotating shaft rotates accordingly, driving the auger to stir the ballast water in the middle of the treatment tank, and at the same time driving the outer gear and the inner gear to make a circular motion around the rotating shaft, so that the stirring frame and the stirring plate rotate;

[0021] S5: Add disinfectant into the treatment tank, and the stirring mechanism allows the disinfectant and ballast water to be mixed quickly and evenly;

[0022] S6: After the ballast water disinfection treatment is completed, open the drain valve at the bottom of the treatment tank, and the treated ballast water flows into the purifier, and is purified layer by layer through the activated carbon filter element, ultrafiltration membrane filter element, nanofiltration membrane filter element and reverse osmosis membrane filter element in turn.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] First, in the present invention, by setting a filtering mechanism, ballast water enters the conical filter through the water hopper, the annular pipe and the drain pipe during use. While the filter filters impurities, the cleaning design can start the drive motor to drive the gear to rotate during use, and then drive the rotating shaft and the cleaning arm, so that the cleaning brush plate can continuously brush and clean the conical filter to prevent impurities from accumulating and clogging the filter. The cleaning arm also drives the scraping frame to clean the annular guide bucket, and guides the filtered large particles of impurities for collection. The impurities fall into the collection drawer through the discharge pipe for centralized treatment. This process avoids frequent disassembly and assembly of the filter, ensures that the ballast water filtering process can operate stably for a long time, effectively improves work efficiency, reduces maintenance costs, and ensures the efficiency and convenience of the ship's ballast water filtration process;

[0025] Secondly, in the present invention, by setting a stirring mechanism, during use, the cross at the bottom of the rotating shaft can be driven by the driving motor to rotate, driving the auger to initially stir the ballast water in the middle of the treatment tank. At the same time, the cross drives the outer gear and the inner gear to make circular motion around the rotating shaft, and the outer gear meshes with the inner gear ring, so that the outer gear and the inner gear rotate themselves during the displacement process, thereby driving the stirring frame and the stirring plate at the bottom to rotate. This unique stirring method allows the stirring frame and the stirring plate to perform secondary mixing of the ballast water around the auger. When the disinfectant is added to the treatment tank body, it can be quickly and evenly integrated with the ballast water, greatly improving the disinfection efficiency, avoiding uneven disinfection, and ensuring the reliability and stability of the ballast water disinfection effect;

[0026] Thirdly, in the present invention, a complete and efficient ballast water treatment process is constructed from filtration to disinfection to deep purification. The filtering mechanism effectively intercepts large-particle impurities, reducing the burden for subsequent treatment; the stirring mechanism realizes the full mixing of the disinfectant and the ballast water, thereby improving the disinfection effect; finally, the treated ballast water flows into the purifier, and passes through the activated carbon filter element, ultrafiltration membrane filter element, nanofiltration membrane filter element and reverse osmosis membrane filter element in turn, so as to further remove tiny impurities, bacteria, viruses and various pollutants in the water. The whole process not only improves the treatment quality of ballast water and makes it meet environmental emission standards, but also reduces the potential harm to the marine ecological environment, and provides reliable technical support for the green treatment of ship ballast water. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure in the present invention when viewed from above;

[0030] Figure 4 It is a schematic diagram of the structure of the filtering mechanism in the present invention;

[0031] Figure 5 This is a bottom view of the structure of the stirring mechanism of the present invention;

[0032] Figure 6 It is a front structural schematic diagram of the stirring mechanism in the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of the collection component in the present invention in the open state;

[0034] Figure 8 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0035] Fig. 9 It is a schematic diagram of the internal structure of the purifier in the present invention.

[0036] In the figure: 1, base; 2, support leg; 3, treatment tank; 4, drain valve; 5, filtering mechanism; 51, cone filter; 52, collecting assembly; 521, annular guide bucket; 522, discharge pipe; 523, collecting box; 524, collecting drawer; 525, magnetic plate; 53, cleaning assembly; 531, rotating shaft; 532, cleaning arm; 533, cleaning brush plate; 534, second gear; 535, scratching frame; 6, stirring mechanism; 61, fixed column; 62, annular frame; 63, transmission assembly; 631, cross; 632. inner gear ring; 633. outer gear; 634. inner gear; 64. stirring assembly; 641. auger; 642. stirring frame; 643. stirring plate; 7. driving mechanism; 71. supporting frame; 72. top plate; 73. driving motor; 74. first gear; 75. connecting arm; 76. annular tube; 77. drain pipe; 78. water adding pipe; 79. water adding bucket; 8. purifier; 9. activated carbon filter element; 10. ultrafiltration membrane filter element; 11. nanofiltration membrane filter element; 12. reverse osmosis membrane filter element; 13. discharge pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 9 In an embodiment of the present invention, a ship ballast water deep treatment device includes a base 1, support legs 2 are fixedly installed at the four corners of the top of the base 1, a treatment tank body 3 is fixedly installed on the top of the support legs 2, a filter mechanism 5 is installed on the top of the treatment tank body 3 by bolts, a stirring mechanism 6 is movably installed at the bottom of the filtering mechanism 5, the stirring mechanism 6 is rotatably connected to the inside of the treatment tank body 3, the upper end of the treatment tank body 3 is located outside the filtering mechanism 5 and a driving mechanism 7 is fixedly installed, the output end of the driving mechanism 7 is transmission-connected to the top of the filtering mechanism 5, a drain valve 4 is fixedly installed at the bottom of the treatment tank body 3, and a purifier 8 is fixedly installed at the output end of the drain valve 4;

[0039] The filter mechanism 5 includes a conical filter screen 51, which is installed on the top of the treatment tank body 3 by bolts. A collecting component 52 is provided on the outside of the conical filter screen 51. The stirring mechanism 6 is installed on the bottom of the conical filter screen 51. The outer surface of the conical filter screen 51 is rotatably connected with a cleaning component 53. The bottom of the cleaning component 53 passes through the conical filter screen 51 and is connected to the top of the stirring mechanism 6. In the filter mechanism 5, the conical filter screen 51 effectively intercepts large particles of impurities, and the collecting component 52 on the outside thereof is convenient for centralized collection of impurities, and the cleaning component 53 can clean the conical filter screen 51 in real time to prevent clogging, thereby ensuring The filtration is carried out efficiently and continuously. The stirring mechanism 6 and the filtering mechanism 5 work closely together. Driven by the driving mechanism 7, the ballast water can be stirred in all directions and at multiple levels, so that the disinfectant and the ballast water are fully mixed, which greatly improves the disinfection effect. The drain valve 4 at the bottom of the treatment tank 3 is convenient for discharging the treated ballast water. The connected purifier 8 further purifies it in depth to remove tiny impurities, bacteria, viruses and other pollutants. The overall device has a compact structure and complete functions. From filtration, disinfection to deep purification, each part works together to effectively improve the treatment quality of ballast water and reduce the risk of pollution to the marine environment.

[0040] See also Figure 1-Figure 7 The driving mechanism 7 includes a support frame 71, which is fixedly installed on the upper rear side of the processing tank body 3. A top plate 72 is fixedly installed on the top of the support frame 71, and a driving motor 73 is fixedly installed on the top of the top plate 72. The output end of the driving motor 73 passes through the top plate 72 and is fixedly installed with a first gear 74. The first gear 74 is meshed and connected with the cleaning component 53. A connecting arm 75 is fixedly installed on the inner side of the support frame 71, and an annular tube 76 is fixedly installed on the end of the connecting arm 75. Drain pipes 77 are fixedly installed at equal intervals at the bottom of the annular tube 76. A water adding pipe 78 is fixedly installed on the outer side of the annular tube 76. A water adding bucket 79 is fixedly installed on the top of the water adding pipe 78. The support frame 71 is firmly installed on the upper rear side of the processing tank body 3, and the top plate 72 on its top provides reliable support for the driving motor 73 to ensure that the motor can operate smoothly. The first gear 74 connected to the output end of the driving motor 73 meshes with the cleaning assembly 53, which can accurately transmit power. The cleaning assembly 53 is driven by the operation of the motor to efficiently clean the conical filter 51 and maintain the efficient operation of the filtering mechanism 5. At the same time, the connecting arm 75 on the inner side of the support frame 71 fixes the annular tube 76, which not only ensures the stable position of the annular tube 76, but also provides a reliable path for water flow guidance. The drainage pipes 77 at equal intervals at the bottom of the annular tube 76 can make the ballast water flow evenly to the conical filter 51, thereby improving the filtering effect. The setting of the water adding pipe 78 and the water adding bucket 79 facilitates the injection of ballast water, and lays the foundation for the smooth progress of subsequent treatment from the water inlet link. The coordinated cooperation of various components improves the working efficiency and stability of the entire device.

[0041] See also Figure 1-Figure 3 and Fig. 9 , the interior of the purifier 8 is linearly arranged with equal spacing, and an activated carbon filter element 9, an ultrafiltration membrane filter element 10, a nanofiltration membrane filter element 11 and a reverse osmosis membrane filter are installed in sequence. The interior of the activated carbon filter element 9 is composed of an activated carbon adsorption plate, the interior of the ultrafiltration membrane filter element 10 is composed of a polyvinylidene fluoride filter layer material, the interior of the nanofiltration membrane filter element 11 is composed of a sulfonated polyethersulfone filter layer material, and the interior of the reverse osmosis membrane filter is composed of an aromatic polyamide filter layer material. A discharge pipe 13 is fixedly connected to the outside of the purifier 8, and a connecting flange is fixedly installed on the outer end of the discharge pipe 13. The first gear 74 connected to the output end of the drive motor 73 is meshed with the cleaning component 53, which can accurately transmit power. The operation of the motor drives the cleaning component 53 to efficiently clean the conical filter 51 and maintain the efficient operation of the filtering mechanism 5. At the same time, the connecting arm 75 on the inner side of the support frame 71 fixes the annular tube 76, which not only ensures the stable position of the annular tube 76, but also provides a reliable path for water flow guidance. The drainage pipes 77 at equal intervals at the bottom of the annular tube 76 can make the ballast water flow evenly to the conical filter 51, thereby improving the filtering effect. The arrangement of the water adding pipe 78 and the water adding bucket 79 facilitates the injection of ballast water. At the same time, the drainage pipe 77 arranged in a ring shape can discharge the ballast water to the top middle of the conical filter 51, thereby enabling it to withstand a wider filtering area.

[0042] See also Figure 4-Figure 8 The cleaning assembly 53 includes a rotating shaft 531, which is rotatably connected to the middle part of the conical filter screen 51. The upper end of the outer surface of the rotating shaft 531 is fixedly connected with a cleaning arm 532 at an equal interval. A cleaning brush plate 533 is fixedly installed on the inner side of the cleaning arm 532. The inner side of the cleaning brush plate 533 is fitted and connected with the outer surface of the conical filter screen 51. A second gear 534 is fixedly installed on the top of the rotating shaft 531. The second gear 534 is meshed and connected with the first gear 74. The bottom of the rotating shaft 531 is connected to the top of the stirring mechanism 6. The cleaning arms 532 fixed at equal intervals on the outer surface of the rotating shaft 531 cooperate with the cleaning brush plate 533 on the inner side to fully clean the conical filter screen 51. The outer surface of the conical filter 51 is fitted in place. As the rotating shaft 531 rotates, the cleaning brush plate 533 efficiently brushes away impurities attached to the filter, effectively preventing the filter from being blocked, and ensuring the continuity and efficiency of the filtration. The second gear 534 is meshed with the first gear 74 of the driving mechanism 7, accurately receiving the power of the driving motor 73, providing stable and strong operating power for the cleaning component 53, and the bottom of the rotating shaft 531 is connected to the stirring mechanism 6, realizing the linkage between the filtering and stirring links, which not only improves the treatment efficiency of the ballast water, but also optimizes the operation coordination of the overall device, making the process from filtering impurities to stirring and disinfecting smoother.

[0043] See also Figure 4-Figure 6The stirring mechanism 6 includes a fixed column 61, which is arranged in a ring shape with equal spacing and fixedly installed at the bottom of the conical filter screen 51. An annular frame 62 is fixedly installed at the bottom of the fixed column 61. A transmission component 63 is provided at the bottom of the annular frame 62. A stirring component 64 is installed at the bottom of the transmission component 63. The stirring component 64 is movably installed inside the processing tank body 3. The transmission component 63 includes a cross 631 and an inner gear ring 632. The cross 631 is fixedly installed at the bottom of the rotating shaft 531. The inner gear ring 632 is fixedly installed at the bottom of the annular frame 62. The outer end of the bottom of the frame 631 is rotatably connected to the outer gear 633 in an annular arrangement at equal intervals. The bottom of the cross 631 is located on the inner side of the outer gear 633 and is rotatably connected to the inner gear 634 in an annular arrangement at equal intervals. The inner gear 634 and the outer gear 633 are meshed and connected. The stirring assembly 64 is arranged at the bottom of the cross 631. The stirring assembly 64 includes an auger 641 and a stirring frame 642. The auger 641 is fixedly installed at the bottom of the cross 631. The stirring frames 642 are fixedly installed at the bottom of each inner gear 634. The inner side of the stirring frame 642 is fixedly installed at the bottom of each inner gear 634. The stirring plates 643 are fixedly installed with linear spacing. The lower ends of the auger 641 and the lower ends of the processing tank body 3 are both set in a cone shape. In the transmission component 63, the cross 631 is connected to the bottom of the rotating shaft 531, which can effectively transmit the power from the rotating shaft 531. The inner gear ring 632 cooperates with the outer gear 633 and the inner gear 634. When the cross 631 rotates, the outer gear 633 is driven by the inner gear ring 632 to drive the inner gear 634 meshing with it to rotate synchronously, realizing multi-angle and multi-directional power transmission. 41 is located at the bottom of the cross 631, and can perform initial stirring on the ballast water in the middle of the treatment tank to form a water flow base, while the stirring rack 642 fixed at the bottom of each inner gear 634, the stirring plate 643 inside thereof, during the rotation with the inner gear 634, performs secondary stirring on the water flow stirred by the auger 641. Since the auger 641 and the stirring rack 642 and the stirring plate 643 have different stirring directions and ranges, the ballast water and disinfectant can be mixed more fully in an all-round manner, thereby ensuring the high efficiency and uniformity of the disinfection treatment, and greatly improving the treatment quality of the ballast water.

[0044] See also Figure 1-Figure 5 and Figure 7The collecting assembly 52 includes an annular guide bucket 521 and a scratch frame 535. The cross-sectional shape of the annular guide bucket 521 is set in a V shape. A discharge pipe 522 is fixedly installed on one side of the bottom of the annular guide bucket 521. A collecting box 523 is fixedly installed on the outer end of the discharge pipe 522. The top of the discharge pipe 522 is connected to the interior of the guide bucket. The lower end of the interior of the collecting box 523 is slidably connected with a collecting drawer 524. Both ends of the outer side of the collecting drawer 524 are fixedly connected with magnetic plates 525. The magnetic plates 525 and the collecting box 523 are magnetically connected. The scratch frame 535 is fixedly installed on the outer end of the cleaning arm 532. The bottom of the scratch frame 535 is fitted and connected with the top of the annular guide bucket 521. The annular guide bucket 521 is designed with a V-shaped cross-section, which can effectively guide the large particles of impurities filtered out by the conical filter 51 and make them slide to the bottom along the V-shaped slope. This design is conducive to the collection of impurities. The impurities in the annular guide bucket 521 converge in the middle, and the discharge pipe 522 on the bottom side smoothly guides the impurities in the annular guide bucket 521 to the collection box 523, ensuring the high efficiency of impurity transfer. The collection drawer 524 in the collection box 523 is magnetically connected to the collection box 523 through the magnetic plate 525, which not only ensures the stability of the drawer in the collection box 523, but also facilitates disassembly and cleaning. The collected impurities can be easily handled by simply pulling out the collection drawer 524, and the scratch frame 535 is fixed to the outer end of the cleaning arm 532, and the bottom is fitted with the top of the annular guide bucket 521. When the cleaning arm 532 rotates, the scratch frame 535 can promptly scrape off the impurities attached to the top of the annular guide bucket 521 and make it fall into the discharge pipe 522, further ensuring the integrity of impurity collection, avoiding impurity accumulation, ensuring the smooth operation of the entire filtration and collection process, and improving the reliability and convenience of the device for ballast water impurity treatment.

[0045] A method for deep treatment of ship ballast water comprises the following steps:

[0046] S1: Use sand filter to filter the ballast water preliminarily to remove larger impurities;

[0047] S2: The ballast water after preliminary filtration is injected into the water adding bucket 79, guided by the water adding bucket 79 to flow into the annular pipe 76, and then transported to the top center of the conical filter screen 51 through the drainage pipe 77;

[0048] S3: Start the driving motor 73, the motor drives the first gear 74 to rotate, drives the second gear 534 to operate, causes the rotating shaft 531 to rotate, drives the cleaning arm 532 to rotate, the cleaning brush plate 533 cleans the conical filter 51, the scratch frame 535 cleans the annular guide bucket 521, and the impurities fall into the collection drawer 524 in the collection box 523;

[0049] S4: The driving motor 73 is running, driving the rotating shaft 531 to rotate, and the cross 631 at the bottom of the rotating shaft 531 rotates accordingly, driving the auger 641 to stir the ballast water in the middle of the treatment tank, and at the same time driving the outer gear 633 and the inner gear 634 to make a circular motion around the rotating shaft 531, so that the stirring frame 642 and the stirring plate 643 rotate;

[0050] S5: Add the disinfectant into the treatment tank 3, and the stirring mechanism 6 allows the disinfectant and the ballast water to be mixed quickly and evenly;

[0051] S6: After the ballast water disinfection treatment is completed, the drain valve 4 at the bottom of the treatment tank is opened, and the treated ballast water flows into the purifier 8, and is purified layer by layer through the activated carbon filter element 9, the ultrafiltration membrane filter element 10, the nanofiltration membrane filter element 11 and the reverse osmosis membrane filter element 12 in sequence.

[0052] The working principle of the present invention is as follows: in the present invention, the setting of the filtering mechanism 5 greatly improves the efficiency and sustainability of ballast water treatment. When the device is running, a sand filter can be used to initially filter the water to remove larger impurities therein, and then the ballast water is injected into the water adding bucket 79, guided by the water adding bucket 79 to flow into the annular pipe 76, and then transported to the top center of the conical filter 51 through the drain pipe 77. The conical filter 51 performs initial filtration on the ballast water, and impurities adhere to its outer surface. At this time, the drive motor 73 is started, and the motor drives the first gear 74 to rotate, thereby driving the second gear 534 to operate. The rotation of the second gear 534 causes the rotating shaft 531 to rotate, driving the cleaning arm 532 to rotate together, and the cleaning brush plate 533 on the cleaning arm 532 is tightly fitted with the outer surface of the conical filter 51. The cleaning arm 532 rotates, and the cleaning brush plate 533 continuously rubs the conical filter screen 51, effectively removing the attached impurities. At the same time, the cleaning arm 532 drives the scraping frame 535 to scrape the inside of the annular guide bucket 521. Under the combined action of the cleaning brush plate 533 and the filtering of the conical filter screen 51, the filtered large particles of impurities are guided and discharged into the annular guide bucket 521, and then pushed into the discharge pipe 522 through the scraping frame 535, and finally fall into the collection drawer 524 in the collection box 523. This design allows the conical filter screen 51 to remain unobstructed and avoid clogging problems. There is no need to frequently disassemble the cleaning filter screen, ensuring that the device can stably treat the ballast water for a long time. After the treatment is completed, the particles collected in the collection drawer 524 can be removed by simply pulling the collection drawer 524, which is convenient for the use of the device.

[0053] In addition, the stirring mechanism 6 of the present invention further optimizes the disinfection treatment process of ballast water. When the driving motor 73 is running, it drives the rotating shaft 531 to rotate, and the cross 631 at the bottom of the rotating shaft 531 rotates accordingly. The rotation of the cross 631 not only drives the auger 641 at the bottom to stir the ballast water in the middle of the treatment tank, but also drives the outer gear 633 and the inner gear 634 to make a circular motion around the rotating shaft 531. During the movement, the outer gear 633 meshes with the stationary inner gear ring 632, and is driven to rotate by the inner gear ring 632, thereby driving the inner gear 634 to rotate synchronously. The rotation of the inner gear 634 drives the stirring frame 642 at the bottom thereof and the stirring plate 643 inside the stirring frame 642 to rotate together. At this time, the auger 64 The ballast water is rotated and stirred in the middle of the treatment tank, and the stirring frame 642 and the stirring plate 643 rotate around the auger 641 and stir and mix the stirred ballast water for the second time. When the disinfectant is added to the treatment tank body 3, this efficient stirring method can make the disinfectant and the ballast water mix quickly and evenly, which greatly improves the disinfection efficiency of the ballast water, avoids the problem of uneven treatment, and significantly improves the overall treatment effect. After the ballast water disinfection treatment is completed, the drain valve 4 at the bottom of the treatment tank is opened, and the treated ballast water flows into the purifier 8, and passes through the activated carbon filter element 9, the ultrafiltration membrane filter element 10, the nanofiltration membrane filter element 11 and the reverse osmosis membrane filter element 12 for purification, which further improves the treatment quality of the ballast water.

Claims

1. A ship ballast water deep treatment device, characterized in that: The invention comprises a base (1), support legs (2) are fixedly mounted at the four corners of the top of the base (1), a treatment tank body (3) is fixedly mounted on the top of the support legs (2), a filtering mechanism (5) is mounted on the top of the treatment tank body (3) by bolts, a stirring mechanism (6) is movably mounted on the bottom of the filtering mechanism (5), the stirring mechanism (6) is rotatably connected to the inside of the treatment tank body (3), a driving mechanism (7) is fixedly mounted on the upper end of the treatment tank body (3) outside the filtering mechanism (5), the output end of the driving mechanism (7) is transmission-connected to the top of the filtering mechanism (5), a drain valve (4) is fixedly mounted on the bottom of the treatment tank body (3), and a purifier (8) is fixedly mounted on the output end of the drain valve (4); The filtering mechanism (5) comprises a conical filter (51), the conical filter (51) being mounted on the top of the processing tank (3) by means of bolts, a collecting assembly (52) being arranged on the outer side of the conical filter (51), the stirring mechanism (6) being mounted on the bottom of the conical filter (51), a cleaning assembly (53) being rotatably connected to the outer surface of the conical filter (51), the bottom of the cleaning assembly (53) passing through the conical filter (51) and being connected to the top of the stirring mechanism (6).

2. A ship ballast water deep treatment device according to claim 1, characterized in that: The driving mechanism (7) comprises a support frame (71), the support frame (71) is fixedly mounted on the rear side of the upper end of the processing tank body (3), a top plate (72) is fixedly mounted on the top of the support frame (71), a driving motor (73) is fixedly mounted on the top of the top plate (72), an output end of the driving motor (73) passes through the top plate (72) and is fixedly mounted with a first gear (74), and the first gear (74) is meshingly connected to the cleaning assembly (53).

3. A ship ballast water deep treatment device according to claim 2, characterized in that: A connecting arm (75) is fixedly mounted on the inner side of the support frame (71), an annular tube (76) is fixedly mounted on the end of the connecting arm (75), drainage pipes (77) are fixedly mounted at equal intervals on the bottom of the annular tube (76), a water supply pipe (78) is fixedly mounted on the outer side of the annular tube (76), and a water supply bucket (79) is fixedly mounted on the top of the water supply pipe (78).

4. A ship ballast water deep treatment device according to claim 1, characterized in that: The interior of the purifier (8) is linearly arranged at equal intervals and is provided with an activated carbon filter element (9), an ultrafiltration membrane filter element (10), a nanofiltration membrane filter element (11) and a reverse osmosis membrane filter in sequence. The interior of the activated carbon filter element (9) is composed of an activated carbon adsorption plate, the interior of the ultrafiltration membrane filter element (10) is composed of a polyvinylidene fluoride filter layer material, the interior of the nanofiltration membrane filter element (11) is composed of a sulfonated polyethersulfone filter layer material, and the interior of the reverse osmosis membrane filter is composed of an aromatic polyamide filter layer material. The outside of the purifier (8) is fixedly connected to a discharge pipe (13), and a connecting flange is fixedly installed at the outer end of the discharge pipe (13).

5. The ship ballast water deep treatment device according to claim 1, characterized in that: The cleaning assembly (53) comprises a rotating shaft (531), the rotating shaft (531) is rotatably connected to the middle part of the conical filter (51), the upper end of the outer surface of the rotating shaft (531) is fixedly connected with a cleaning arm (532) at equal intervals, the inner side of the cleaning arm (532) is fixedly installed with a cleaning brush plate (533), the inner side of the cleaning brush plate (533) is closely connected to the outer surface of the conical filter (51), the top of the rotating shaft (531) is fixedly installed with a second gear (534), the second gear (534) is meshingly connected with the first gear (74), and the bottom of the rotating shaft (531) is connected to the top of the stirring mechanism (6).

6. A ship ballast water deep treatment device according to claim 5, characterized in that: The stirring mechanism (6) comprises fixed columns (61), the fixed columns (61) are arranged in a ring shape at equal intervals and fixedly mounted on the bottom of the conical filter (51), an annular frame (62) is fixedly mounted on the bottom of the fixed columns (61), a transmission component (63) is provided at the bottom of the annular frame (62), a stirring component (64) is installed at the bottom of the transmission component (63), and the stirring component (64) is movably mounted inside the processing tank (3).

7. A ship ballast water deep treatment device according to claim 6, characterized in that: The transmission assembly (63) comprises a cross (631) and an inner gear ring (632), wherein the cross (631) is fixedly mounted on the bottom of the rotating shaft (531), and the inner gear ring (632) is fixedly mounted on the bottom of the annular frame (62). The outer end of the bottom of the cross (631) is rotatably connected to an outer gear (633) arranged in a ring shape at equal intervals, and the bottom of the cross (631) is located on the inner side of the outer gear (633) and is rotatably connected to an inner gear (634) arranged in a ring shape at equal intervals, and the inner gear (634) is meshingly connected to the outer gear (633), and the stirring assembly (64) is arranged at the bottom of the cross (631).

8. A ship ballast water deep treatment device according to claim 7, characterized in that: The stirring assembly (64) comprises an auger (641) and a stirring frame (642), wherein the auger (641) is fixedly mounted on the bottom of the cross (631), and the stirring frames (642) are fixedly mounted on the bottom of each internal gear (634). Stirring plates (643) are fixedly mounted on the inner side of the stirring frame (642) at equal intervals and in a linear arrangement, and the lower end of the auger (641) and the lower end of the processing tank (3) are both arranged in a conical shape.

9. A ship ballast water deep treatment device according to claim 4, characterized in that: The collecting assembly (52) comprises an annular guide bucket (521) and a scratch frame (535). The cross-section of the annular guide bucket (521) is V-shaped. A discharge pipe (522) is fixedly mounted on one side of the bottom of the annular guide bucket (521). A collecting box (523) is fixedly mounted on the outer end of the discharge pipe (522). The top of the discharge pipe (522) is connected to the interior of the guide bucket. The lower end of the interior of the collecting box (523) is slidably connected to a collecting drawer (524). Both ends of the outer side of the collecting drawer (524) are fixedly connected to magnetic plates (525). The magnetic plates (525) and the collecting box (523) are magnetically connected. The scratch frame (535) is fixedly mounted on the outer end of the cleaning arm (532). The bottom of the scratch frame (535) is fitted and connected to the top of the annular guide bucket (521).

10. A method for deep treatment of ship ballast water, using a device for deep treatment of ship ballast water according to any one of claim 1, characterized in that: The steps include: S1: Use sand filter to filter the ballast water preliminarily to remove larger impurities; S2: The ballast water after preliminary filtration is injected into the water adding bucket (79), guided by the water adding bucket (79) to flow into the annular pipe (76), and then transported to the top center of the conical filter (51) through the drainage pipe (77); S3: starting the driving motor (73), the motor drives the first gear (74) to rotate, drives the second gear (534) to operate, causes the rotating shaft (531) to rotate, drives the cleaning arm (532) to rotate, the cleaning brush plate (533) cleans the conical filter (51), the scratch frame (535) cleans the annular guide bucket (521), and the impurities fall into the collection drawer (524) in the collection box (523); S4: The driving motor (73) is operated to drive the rotating shaft (531) to rotate, and the cross (631) at the bottom of the rotating shaft (531) rotates accordingly, driving the auger (641) to stir the ballast water in the middle of the treatment tank, and at the same time driving the outer gear (633) and the inner gear (634) to make a circular motion around the rotating shaft (531), so that the stirring frame (642) and the stirring plate (643) rotate; S5: adding disinfectant into the treatment tank (3), and using the stirring mechanism (6) to quickly and evenly mix the disinfectant with the ballast water; S6: After the ballast water disinfection treatment is completed, the drain valve (4) at the bottom of the treatment tank is opened, and the treated ballast water flows into the purifier (8), and is purified layer by layer through the activated carbon filter element (9), the ultrafiltration membrane filter element (10), the nanofiltration membrane filter element (11) and the reverse osmosis membrane filter element (12) in sequence.

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