Oily water recycling device for wharf boat

Abstract

The invention discloses an oily water recovery treatment device for a wharf boat, and relates to the technical field of oily water recovery, the oily water recovery treatment device comprises a damping assembly module assembled with a deck bin of the wharf boat, a storage tank module arranged on the damping assembly module, and a multi-layer filtering module communicated with the bottom of the storage tank module; the multi-layer filtering module comprises a barrel and transmission assemblies arranged at the upper end and the lower end of the barrel, and a first filtering layer, a second filtering layer and a third filtering layer are sequentially arranged between the transmission assemblies from inside to outside; the second brush and the third brush are respectively arranged on the inner walls of the second filter layer and the third filter layer. Through effective cooperation of all the modules, the functions of cushioning, storage tank storage, multi-stage filtering and oil-water separation are integrated, multi-stage filtering has the self-cleaning function, dirt deposition on the surface of a filtering structure is removed, the cleaning period is prolonged, the damping design can adapt to water bumping, and the practicability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste oil and water recovery, and particularly to a waste oil and water recovery and treatment device for a floating dock. Background Art

[0002] A floating dock is usually an unpowered moored ship used for loading and unloading goods or refueling and filling water for other ships. Now, some floating docks are also converted into surface offices, which have the advantages of convenient docking and long-term surface office. However, waste oil and water, as well as domestic sewage, have become urgent problems for office floating docks. In particular, waste oil and water, as well as washing water, contain organic substances, suspended solids, oils and fats, and chemical substances, etc., and cannot be directly discharged. However, the existing waste oil and water recovery and treatment devices still have the following disadvantages during use:

[0003] First: Considering the possible vibration problems in the water environment, there are certain requirements for shock absorption and the stability of the structure.

[0004] Second: The problem of the assembly space of the floating dock deck warehouse requires the assembly of multiple modules.

[0005] Third: When the filtering structure is used for a long time, problems such as blockage are likely to occur. Summary of the Invention

[0006] The purpose of the present invention is to provide a waste oil and water recovery and treatment device for a floating dock. Through the effective cooperation of each module, this device integrates functions of shock absorption, storage tank, multi-stage filtration, and oil-water separation. Among them, the multi-stage filtration takes into account the self-cleaning function to remove the stain deposits on the surface of the filtering structure, extend the cleaning cycle, and the shock absorption design can adapt to the bumps on the water surface, improving the practicability of the device.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A waste oil and water recovery and treatment device for a floating dock, comprising: a shock absorption assembly module assembled with the floating dock deck warehouse, a storage tank module provided on the shock absorption assembly module, and a multi-layer filtration module communicated with the bottom of the storage tank module; the multi-layer filtration module includes a cylinder body, drive assemblies provided at the upper and lower ends of the cylinder body, and a first filtration layer, a second filtration layer, and a third filtration layer are sequentially arranged from the inside to the outside between the drive assemblies; it also includes a second brush and a third brush respectively provided on the inner walls of the second filtration layer and the third filtration layer. When the drive assemblies operate, the inner tangent plane of the second filtration layer performs eccentric rotation along the outer wall of the first filtration layer, and the second brush can clean the outer wall of the first filtration layer. The outer tangent plane of the second filtration layer performs eccentric rotation along the inner wall of the third filtration layer, and the second brush can clean the outer wall of the second filtration layer; a suction module is circumferentially distributed on the outer wall of the cylinder body, and an oil-water separation module communicated with each suction module. When the suction module operates, the sewage sequentially passes through the first filtration layer, the second filtration layer, and the third filtration layer from the inside to the outside to complete multiple filtrations and achieve oil-water separation under the action of the oil-water separation module.

[0008] Preferably, the transmission assembly includes transmission ring assemblies and transmission frame assemblies at the upper and lower ends; the transmission ring assemblies include a first ring body, a second ring body, and a third ring body fixedly connected in sequence from inside to outside, wherein the second ring body is eccentrically arranged relative to the first ring body and the third ring body, and a through groove is formed in the first ring body; the transmission frame assemblies include a first frame body, a second frame body, and a third frame body corresponding to and oppositely arranged with the first ring body, the second ring body, and the third ring body respectively; and a plate body fixed between the first filter layer and the third filter layer, and both ends of the second filter layer are limited on both sides of the plate body. Among them, the first filter layer is rotatably installed with the first ring body and the first frame body, the second filter layer is sleeved between the second ring body and the second frame body and is eccentrically arranged with the first filter layer and the third filter layer, and the third filter layer is rotatably installed with the third ring body and the third frame body and is fixed with the first filter layer and the cylinder body.

[0009] Preferably, a connecting pipeline for connecting the transmission ring assembly and the storage tank module is further installed between the transmission ring assembly and the storage tank module; the connecting pipeline includes a docking bin fixed on the top of the cylinder body and communicated with the upper edge of the through groove, and a pipe body annularly communicated with the docking bin. One end of several pipe bodies far away from the docking bin is inserted and communicated with a transfer bin, and the transfer bin is communicated with the storage tank module.

[0010] Preferably, a driving motor is arranged on the top of the docking bin, and a connecting rod is fixed on the output end of the driving motor. The bottom end of the connecting rod sequentially passes through the through hole formed in the docking bin and the first ring body and is fixedly connected with the first ring body and the first frame body, serving as a driving source for the synchronous rotation of the transmission ring assembly and the transmission frame assembly.

[0011] Preferably, a scraping component is further arranged in the middle of the first filter layer for cleaning the inner wall of the first filter layer; the scraping component includes a scraping plate body annularly fixed on the connecting rod and attached to the inner wall of the first filter layer.

[0012] Preferably, each suction module includes two sets of oppositely distributed transmission disc assemblies. Each transmission disc assembly includes a first disc body, a second disc body, and a third disc body fixedly connected in sequence from inside to outside; and a first transmission ring and a third transmission ring rotatably installed between two first disc bodies and between two third disc bodies respectively. A connecting plate is fixed in the middle of the bottom surfaces of the first transmission ring and the third transmission ring; a second transmission ring is further included and sleeved between two second disc bodies. Both ends of the second transmission ring are limited and installed on both sides of the connecting plate and are eccentrically distributed with the first disc body and the third disc body; an inlet and an outlet are further arranged at both ends of the bottom surface of the third transmission ring, and the inlet is detachably installed with the cylinder body; and a motor arranged in one of the transmission disc assemblies and fixed with the first disc body is used for the synchronous rotation of the first disc body, the second disc body, and the third disc body.

[0013] Preferably, a placement box is provided on the top of the third transmission ring, and a mounting groove is provided on the top of the third transmission ring, and a transparent layer connected to the placement box is provided in the mounting groove.

[0014] Preferably, the shock-absorbing assembly module includes an elastic bag; the storage tank module includes a platform fixed on the top of the elastic bag, a first connecting plate annularly fixed on the top of the platform, a telescopic sleeve is fixed to each of the first connecting plates, and a telescopic rod telescopically installed inside the telescopic sleeve, and a second connecting plate is fixed to the upper part of the telescopic rod, a mounting ring is fixed to the middle part, and a spring is connected to the outer wall of the telescopic rod between the mounting ring and the telescopic sleeve; it also includes a folding storage bag fixed to a plurality of second connecting plates for storing sewage; further, a connecting piece is arranged on the top of the folding storage bag.

[0015] Preferably, a sewage circulation treatment module is also arranged between the third frame and the transfer bin for multi-stage filtration of sewage; the sewage circulation treatment module comprises an installation frame fixed to the bottom of the third frame and connected thereto, a filter plate is arranged on the step portion of the middle section of the installation frame; and a reflux pipe annularly connected to the lower part of the installation frame, and each of the reflux pipes has one end away from the installation frame passing through a through hole opened in the side wall of the cylinder and connected to the upper side wall of the folding storage bag, and each reflux pipe is provided with a pump body; and also comprises a one-way valve arranged inside each reflux pipe and flowing toward the folding storage bag.

[0016] Preferably, the oil-water separation modules correspond to the suction modules one by one, and each oil-water separation module includes a plurality of ultrasonic transducers arranged on the side wall of the elastic bag; and a connecting frame arranged on the outlet of the corresponding suction module, each connecting frame being detachably connected to a valve body; and also includes a valve slot arranged in the valve body and connected to the outside, and grooves staggered up and down are provided on both sides of the valve slot, and a block is fixed in each of the groove areas. When the oily wastewater flows from top to bottom, under the action of the block, the oily wastewater is divided into a mainstream in the valve slot and a tributary in the groove, and the tributary changes direction under the action of the groove to collide with the mainstream, forming a vortex and slowing down the flow rate of the oily wastewater.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention integrates shock absorption, storage tanks, multi-stage filtration and oil-water separation functions through the effective coordination of various modules. The multi-stage filtration also takes into account the self-cleaning function, removes the stains deposited on the surface of the filter structure, and extends the cleaning cycle. The shock absorption design can adapt to water turbulence and improve the practicality of the device.

[0019] 2. As another embodiment of the present invention, a scraper assembly is provided, which cooperates with the second brush and the third brush to realize the self-cleaning process on both sides of the first filter layer, thereby ensuring the filtering effect of the first filter layer.

[0020] 3. As other embodiments of the present invention, when the ultrasonic wave emitted by the ultrasonic transducer propagates in the oily sewage, cavitation effect and acoustic streaming effect will be generated to realize the separation of the oily sewage flowing into the valve body through the connecting frame and the crushing process of oil droplets, and the action time of the oily sewage and the ultrasonic transducer is prolonged. The valve groove provided in the valve body and the block inside the valve groove can realize the eddy current deceleration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is Figure 1 another perspective three-dimensional structural diagram of

[0023] Figure 3 is a schematic cross-sectional structure diagram of the multi-layer filtration module;

[0024] Figure 4 is a schematic diagram of the present invention with the shock absorption assembly module removed;

[0025] Figure 5 is an enlarged structural diagram at A;

[0026] Figure 6 is an enlarged structural diagram of the transmission ring assembly;

[0027] Figure 7 is a schematic cross-sectional structure diagram of the present invention;

[0028] Figure 8 is Figure 7 a partially enlarged structural diagram of

[0029] Figure 9 is a partially enlarged structural diagram of the first filter layer, the second filter layer and the third filter layer;

[0030] Figure 10 is an enlarged structural diagram of the suction module;

[0031] Figure 11 is an enlarged structural diagram of the shock absorption assembly module;

[0032] Figure 12 is a partial wireframe structural diagram of the oil-water separation module;

[0033] Figure 13 is a partially enlarged structural diagram of the oil-water separation module;

[0034] Figure 14 is a schematic assembly structure diagram of the present invention.

[0035] In the figure: 111, frustum; 211, first connecting plate; 212, telescopic sleeve; 213, telescopic rod; 214, mounting ring; 215, spring; 216, second connecting plate; 217, folding storage bladder; 311, transfer bin; 312, pipe body; 313, docking bin; 314, cylinder body; 411, first ring body; 412, second ring body; 413, third ring body; 414, first filter layer; 415, second filter layer; 416, third filter layer; 4171, third brush; 4172, second brush; 418, drive motor; 419, connecting rod; 420, scraper body; 421, plate body; 422, through slot; 423, first frame body; 424, second frame body; 425, third frame body; 511, mounting frame; 512, filter plate; 513, return pipe; 514, pump body; 611, third transmission ring; 612, inlet; 613, outlet; 614, first disc body; 615, second disc body; 616, third disc body; 617, first transmission ring; 618, connecting plate; 619, second transmission ring; 620, placement box; 621, permeable layer; 711, fitting; 712, assembly block; 713, bolt; 811, elastic bladder; 911, connecting frame; 912, valve body; 913, ultrasonic transducer; 914, valve slot; 915, stop block; 916, groove; 101, connecting piece. Detailed implementation manners

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. The following describes each embodiment of the present invention in detail with reference to the drawings.

[0037] Embodiment 1

[0038] Please refer to Figures 1 to 14, the present invention preferably provides a technical solution: an oily sewage recovery and treatment device for a floating dock, a shock absorption assembly module assembled with the floating dock deck warehouse, a storage tank module provided on the shock absorption assembly module, and a multi-layer filtration module communicated with the bottom of the storage tank module; the multi-layer filtration module includes a cylinder body 314, drive assemblies provided at the upper and lower ends of the cylinder body 314, and a first filtration layer 414, a second filtration layer 415, and a third filtration layer 416 are sequentially arranged from inside to outside between the drive assemblies; it further includes second brushes 4172 and third brushes 4171 respectively arranged on the inner walls of the second filtration layer 415 and the third filtration layer 416. When the drive assemblies operate, the inner section of the second filtration layer 415 eccentrically rotates around the outer wall of the first filtration layer 414, and the second brush 4172 can clean the outer wall of the first filtration layer 414. The outer section of the second filtration layer 415 eccentrically rotates around the inner wall of the third filtration layer 416, and the second brush 4172 can clean the outer wall of the second filtration layer 415; a suction module is circumferentially distributed on the outer wall of the cylinder body 314, and an oil-water separation module communicated with each suction module. When the suction module operates, the sewage sequentially passes through the first filtration layer 414, the second filtration layer 415, and the third filtration layer 416 from inside to outside to complete multiple filtrations and realize oil-water separation under the action of the oil-water separation module.

[0039] This application mainly includes a shock absorption assembly module, a storage tank module, a multi-layer filtration module, and an oil-water separation module. Among them, the shock absorption assembly module can be assembled with the floating dock deck warehouse, and its structural characteristics can buffer during the operation of the floating dock to adapt to the bumpy environment on the water. The inlet and outlet ends of the storage tank module are respectively communicated with the sewage discharge pipe of the floating dock and the multi-layer filtration module to respectively realize the collection of sewage and the filtration and cleaning after collection. Refer to Figure 14 , and at the same time, the oil-water separation module connected to the output end of the multi-layer filtration module further receives the filtered sewage and performs oil-water separation treatment on the sewage. Refer to Figure 1 , 2 as shown;

[0040] Considering the complex composition of the oily sewage, which may contain impurities and particulate matters, a filtration device is set in the pretreatment stage of the sewage in this application, and then oil-water separation is carried out, following the principle of classified treatment;

[0041] The multi-layer filtration module set by the present invention is specifically combined with Figure 3 , 6 , 7, 8, 9 as shown. Drive ring assemblies and drive frame assemblies are respectively arranged at the upper and lower ends of the cylinder body 314. A first filtration layer 414, a second filtration layer 415, and a third filtration layer 416 are sequentially connected from inside to outside between them. Among them, the second filtration layer 415 is eccentrically arranged with the first filtration layer 414 and the third filtration layer 416, and the second brushes 4172 and third brushes 4171 on the inner walls of the second filtration layer 415 and the third filtration layer 416 are combined with Figure 7 ,8 As shown in Fig. 9, when the inner section of the second filter layer 415 rotates eccentrically along the outer wall of the first filter layer 414, the second brush 4172 on the inner wall of the second filter layer 415 can clean the outer wall of the first filter layer 414. At the same time, the outer section of the second filter layer 415 rotates eccentrically along the inner wall of the third filter layer 416, and the second brush 4172 on the inner wall of the third filter layer 416 can clean the outer wall of the second filter layer 415, completing the filtration and self-cleaning process. The self-cleaning process can remove the stain deposits on the surface of the filtration structure, extend the cleaning cycle, and at the same time reduce the occurrence of situations where the filtration effects of the first filter layer 414, the second filter layer 415, and the third filter layer 416 are affected by blockage.

[0042] At the same time, the suction modules distributed on the outer periphery of the cylinder 314 can suck sewage from the storage tank module into the multi-layer filtration module and pass through the first filter layer 414, the second filter layer 415, and the third filter layer 416 from the inside to the outside in sequence, completing multiple filtrations and discharging the filtered water to the oil-water separation module. At this time, the oil-water separation module can utilize the cavitation effect of ultrasonic waves to impact the oil droplets, reduce the separation difficulty, and promote the microscopic mixing and separation of the oil-water mixture by virtue of the acoustic streaming effect, strengthening the separation process.

[0043] Through the effective cooperation of each module, the present invention integrates functions of shock absorption, storage tank, multi-stage filtration, and oil-water separation. Among them, the multi-stage filtration takes into account the self-cleaning function, removes the stain deposits on the surface of the filtration structure, extends the cleaning cycle, and the shock absorption design can adapt to the bumps on the water surface, improving the practicability of the device.

[0044] Furthermore, the transmission assembly includes transmission ring assemblies and transmission frame assemblies at the upper and lower ends. The transmission ring assembly includes a first ring body 411, a second ring body 412, and a third ring body 413 fixedly connected in sequence from the inside to the outside. Among them, the second ring body 412 is eccentrically arranged relative to the first ring body 411 and the third ring body 413, and a through groove 422 is opened on the first ring body 411; the transmission frame assembly includes a first frame body 423, a second frame body 424, and a third frame body 425 corresponding to and oppositely arranged with the first ring body 411, the second ring body 412, and the third ring body 413 respectively; and a plate body 421 fixed between the first filter layer 414 and the third filter layer 416, and the head and tail ends of the second filter layer 415 are limited on both sides of the plate body 421. Among them, the first filter layer 414 is rotatably installed with the first ring body 411 and the first frame body 423, the second filter layer 415 is sleeved between the second ring body 412 and the second frame body 424 and is eccentrically arranged with the first filter layer 414 and the third filter layer 416, and the third filter layer 416 is rotatably installed with the third ring body 413 and the third frame body 425 and is fixed to the first filter layer 414 and the cylinder 314.

[0045] Here, the transmission ring assembly is combined with Figure 6, the first annular body 411, the second annular body 412, and the third annular body 413 where it is located are fixedly connected in sequence from the inside out. At the same time, the second annular body 412 is eccentrically arranged relative to the first annular body 411 and the third annular body 413. For the transmission frame assembly, refer to Figure 5 , the first frame body 423, the second frame body 424, and the third frame body 425 are arranged corresponding to and opposite to the first annular body 411, the second annular body 412, and the third annular body 413 one by one. Among them, combining Figure 3 , 5 , 6, the first filter layer 414 is rotatably installed on the first annular body 411 and the third annular body 413. The second filter layer 415 is sleeved between the second annular body 412 and the second frame body 424 and is eccentrically arranged relative to the first filter layer 414 and the third filter layer 416. The third filter layer 416 is rotatably installed on the third annular body 413 and the third frame body 425 and is fixed to the first filter layer 414. Therefore, when the transmission ring assembly and the transmission frame assembly rotate, the second annular body 412 and the second frame body 424 can push the second filter layer 415 to eccentrically rotate between the first filter layer 414 and the third filter layer 416, while the first filter layer 414 and the third filter layer 416 remain stationary, so as to realize the process that the inner tangent surface of the second filter layer 415 eccentrically orbits along the outer wall of the first filter layer 414, and the outer tangent surface of the second filter layer 415 eccentrically orbits along the inner wall of the third filter layer 416.

[0046] Furthermore, a connecting pipeline for connecting the two is installed between the transmission ring assembly and the storage tank module; the connecting pipeline includes a docking bin 313 fixed on the top of the cylinder body 314 and communicating with the upper edge of the through slot 422, and a pipe body 312 annularly connected to the docking bin 313. One end of several pipe bodies 312 far from the docking bin 313 is inserted and communicated with a transfer bin 311, and the transfer bin 311 is communicated with the storage tank module.

[0047] Combining Figure 3 , the transmission ring assembly is arranged at the upper end of the cylinder body 314. A through slot 422 is opened on the first annular body 411 where the transmission ring assembly is located. At the same time, the through slot 422 is communicated with the storage tank module through the docking bin 313, the pipe body 312, and the transfer bin 311 to realize the transfer process of sewage. Because the pipe body 312 and the transfer bin 311 are detachably inserted, and a sealing ring is arranged at the connection between the two, it is convenient for the cleaning inside the device and the replacement of parts;

[0048] Furthermore, a driving motor 418 is arranged on the top of the docking bin 313, and a connecting rod 419 fixed to the output end of the driving motor 418. The bottom end of the connecting rod 419 sequentially passes through the through holes opened on the docking bin 313 and the first annular body 411 and is fixedly connected to the first annular body 411 and the first frame body 423, serving as the driving source for the synchronous rotation of the transmission ring assembly and the transmission frame assembly.

[0049] As the driving structure of the transmission ring assembly and the transmission frame assembly, the bottom end of the connecting rod 419 fixed on the driving motor 418 sequentially passes through the docking bin 313 and the through holes formed in the first ring body 411, and is fixedly connected to the first ring body 411 where the transmission ring assembly is located and the first frame body 423 where the transmission frame assembly is located, so as to realize the synchronous driving process of the transmission ring assembly and the transmission frame assembly, and further realize the eccentric rotation of the second filter layer 415 inside the first filter layer 414 and the third filter layer 416.

[0050] Embodiment 2

[0051] As another embodiment of the present invention, a scraper assembly is further provided in the middle of the first filter layer 414 for cleaning the inner wall of the first filter layer 414; the scraper assembly includes a scraper body 420 fixedly arranged in a ring shape on the connecting rod 419 and fitting with the inner wall of the first filter layer 414.

[0052] Combined with Figure 8 、 9 As shown, since the connecting rod 419 is fixed to the scraper body 420 and rotates by the power provided by the driving motor 418, and the second filter layer 415 is fixed to the third filter layer 416 and the cylinder body 314 through the plate body 421, the cleaning process of the inner wall of the second filter layer 415 by the scraper body 420 is realized;

[0053] Since the first filter layer 414 is the first to come into contact with the sewage and is most likely to be blocked, thus in this embodiment combined with Embodiment 1, the self-cleaning process on both the inner and outer sides of the first filter layer 414 can be realized, ensuring the filtering effect of the first filter layer 414.

[0054] Embodiment 3

[0055] As other embodiments of the present invention, each suction module includes two sets of oppositely distributed transmission disc assemblies, and each transmission disc assembly includes a first disc body 614, a second disc body 615 and a third disc body 616 fixedly arranged in sequence from the inside to the outside; and a first transmission ring 617 and a third transmission ring 611 rotatably installed between two first disc bodies 614 and between two third disc bodies 616 respectively, and a connecting plate 618 is fixed in the middle of the bottom surfaces of the first transmission ring 617 and the third transmission ring 611; it further includes a second transmission ring 619 sleeved between two second disc bodies 615, and both ends of the second transmission ring 619 are limitedly installed on both sides of the connecting plate 618 and are eccentrically distributed with respect to the first disc body 614 and the third disc body 616; two ends of the bottom surface of the third transmission ring 611 are further provided with an inlet 612 and an outlet 613, and the inlet 612 is detachably installed with the cylinder body 314; and a motor arranged in one of the transmission disc assemblies and fixed to the first disc body 614 is used for the synchronous rotation of the first disc body 614, the second disc body 615 and the third disc body 616.

[0056] Combined with Figure 3 、10 As shown, the first drive ring 617, the second drive ring 619, and the third drive ring 611 are distributed inside and outside. The first drive ring 617 and the third drive ring 611 are in a fixed state, while the second drive ring 619 eccentrically rotates under the action of two third discs 616. Since the two ends of the third drive ring 611 are respectively provided with an inlet 612 and an outlet 613, the inlet 612 is connected to the cylinder body 314, and the outlet 613 is connected to the oil-water separation module. When the second drive ring 619 rotates clockwise as Figure 10 shown, the space of the third drive ring 611 near the inlet 612 gradually becomes larger and sucks the water inside the cylinder body 314 into this space. At the same time, the area of the third drive ring 611 near the outlet 613 becomes smaller and squeezes the water in the third drive ring 611 towards the outlet 613, realizing the pumping process of sewage.

[0057] Furthermore, a placement box 620 is also provided on the top of the third drive ring 611, and an installation groove is opened on the top of the third drive ring 611. A permeable layer 621 connected to the placement box 620 is arranged in the installation groove.

[0058] Continuing from the above text, as Figure 10 shown, the sewage inside the third drive ring 611 and the second drive ring 619 can be pumped in from the left side and discharged to the right side. During this process, when the sewage moves clockwise between the third drive ring 611 and the second drive ring 619, the third drive ring 611 can squeeze the sewage towards the permeable layer 621 when the sewage passes through the upper part of the third drive ring 611. At this time, the sewage enters the interior of the placement box 620 through the permeable layer 621. Then, the liquid placed in the placement box 620, preferably disinfectant and sewage treatment agent, contacts and merges with the sewage for treatment. It should be noted here that the placement box 620 is a placement bin with a self-sealing cover.

[0059] Furthermore, an installation assembly is also provided between the inlet 612 and the cylinder body 314. The installation assembly includes a fitting 711 fixed and communicated with the lower part of the cylinder body 314. An assembly block 712 is arranged at the end of the fitting 711, and a connecting block is fixed at the inlet 612. It also includes a bolt 713 for connecting the assembly block 712 and the connecting block, and a sealing gasket is also arranged between the assembly block 712 and the connecting block.

[0060] Embodiment 4

[0061] As other embodiments of the present invention, the shock absorption assembly module includes an elastic bladder 811; the storage tank module includes a frustum 111 fixed to the top of the elastic bladder 811, a first connecting plate 211 annularly fixed to the top of the frustum 111, a telescopic sleeve 212 fixed to each first connecting plate 211, and a telescopic rod 213 telescopically installed inside the telescopic sleeve 212. A second connecting plate 216 is fixed to the upper part of the telescopic rod 213, and a mounting ring 214 is fixed to the middle part. A spring 215 is connected to the outer wall of the telescopic rod 213 between the mounting ring 214 and the telescopic sleeve 212; it further includes a folding storage bladder 217 fixed to a plurality of second connecting plates 216 for storing sewage; further, a connecting member 101 is provided at the top of the folding storage bladder 217.

[0062] Combined with Figure 1 As shown, in this embodiment, the first connecting plate 211, the second connecting plate 216, and the telescopic structure therebetween are preferably four. The frustum 111 fixed to the first connecting plate 211 is fixed on the elastic bladder 811, the folding storage bladder 217 fixed to the second connecting plate 216 is connected to the connecting pipeline, and at the same time, the connecting member 101 at the top of the folding storage bladder 217 can be connected to the sewage discharge pipe of the floating dock. Combined with Figure 14 , thus when the elastic bladder 811 sways with the ship, the telescopic structure can adaptively move up and down, and the folding storage bladder 217 expands and contracts with the liquid storage volume to complete the storage of sewage.

[0063] Embodiment 5

[0064] As other embodiments of the present invention, a sewage circulation treatment module is further provided between the third frame 425 and the transfer bin 311 for multi-stage filtration of sewage; the sewage circulation treatment module includes a mounting frame 511 fixed to the bottom of the third frame 425 and communicating with it, and a filter plate 512 is provided on the stepped part in the middle section of the mounting frame 511; and a return pipe 513 annularly connected to the lower part of the mounting frame 511. One end of each return pipe 513 away from the mounting frame 511 passes through a through hole opened on the side wall of the cylinder body 314 and communicates with the upper side wall of the folding storage bladder 217. A pump body 514 is provided on each return pipe 513; it further includes a one-way valve provided inside each return pipe 513 and flowing towards the folding storage bladder 217.

[0065] This embodiment can be carried out after the filtration process is completed. At this time, the pump body 514 provided on each return pipe 513 operates, and the sewage inside the mounting frame 511 and the third filter layer 416 can be pumped into the folding storage bladder 217 for circular filtration to realize the subsequent treatment of the remaining sewage.

[0066] Embodiment 6

[0067] As other embodiments of the present invention, the oil-water separation module corresponds to the suction module one by one. Each oil-water separation module includes a plurality of ultrasonic transducers 913 provided on the side wall of the elastic bladder 811; and a connection frame 911 provided on the corresponding outlet 613 where the suction module is located. A valve body 912 is detachably communicated with each connection frame 911. It also includes a valve groove 914 provided inside the valve body 912 and communicated with the outside. Grooves 916 that are staggered up and down are provided on both sides of the valve groove 914, and a stop block 915 is fixed in the area of each groove 916. When the oily sewage flows from top to bottom, under the action of the stop block 915, the oily sewage is divided into a main stream in the valve groove 914 and a tributary in the groove 916. The tributary turns around under the action of the groove 916 and collides with the main stream, forming a vortex and delaying the flow rate of the oily sewage.

[0068] In this embodiment, as shown in conjunction with Figure 1 , 11 , 12, and 13, the ultrasonic transducer 913 is a piezoelectric transducer that uses the piezoelectric effect of piezoelectric crystals for energy conversion. It is a mature existing technology. When the ultrasonic waves emitted by it propagate in the oily sewage, cavitation effect and acoustic streaming effect will be generated to realize the separation of the oily sewage flowing into the interior of the valve body 912 through the connection frame 911 and the process of crushing oil droplets.

[0069] Among them, the principle of action of the cavitation effect in the oily sewage: When the ultrasonic intensity exceeds the threshold, tiny bubbles (cavitation nuclei) are generated in the oily sewage, and then they quickly collapse due to pressure changes, generating local high temperature and high pressure, forming a high-speed jet to impact the surrounding oil droplets or pollutants, breaking them into smaller particles. It can directly damage the interfacial film (such as proteins, surfactants) of emulsified oil droplets, reduce the oil-water interfacial tension, and at the same time degrade macromolecular organic matter, reducing the resistance of subsequent cyclone separation.

[0070] The principle of action of the acoustic streaming effect in the oily sewage: The ultrasonic waves cause the oily sewage to generate a stable flow (standing wave mode) along the direction of sound wave propagation, enhancing the turbulence of the oily sewage and promoting the microscopic mixing and separation of the oil-water mixture.

[0071] In order to improve the treatment effect of the oily sewage, the valve groove 914 provided inside the valve body 912 and the stop block 915 inside the valve groove 914 can realize the process of vortex deceleration. Specifically, as shown in conjunction with Figure 11 , 12 , and 13, when the oily sewage flows from top to bottom through the valve body 912, under the action of the stop block 915, the oily sewage is divided into a main stream in the valve groove 914 and a tributary in the groove 916. The tributary turns around under the action of the groove 916 and collides with the main stream, similar to two colliding water columns, thus forming a vortex and delaying the flow rate of the oily sewage, thereby prolonging the action time of the oily sewage and the ultrasonic transducer 913 and ensuring the oil removal effect.

[0072] In the present invention, unless otherwise clearly specified or defined, the terms "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection; it may be directly connected, or indirectly connected through an intermediate medium. Among them, there are various ways of detachable installation. For example, it may be by means of cooperation between plugging and buckling, or by means of bolt connection, etc.

[0073] The specific description of the present invention in the above embodiments is only for further illustration of the present invention, and cannot be construed as a limitation on the protection scope of the present invention. Any non-essential improvements and adjustments made by those skilled in the art based on the content of the above invention fall within the protection scope of the present invention.

Claims

1. A device for recovering and treating waste oily water for a pontoon, characterized in that: include: A shock-absorbing assembly module assembled with the deck compartment of the pontoon, a storage tank module arranged on the shock-absorbing assembly module, and a multi-layer filter module connected with the bottom of the storage tank module; The multi-layer filter module comprises a cylinder (314), transmission components arranged at the upper and lower ends of the cylinder (314), and a first filter layer (414), a second filter layer (415) and a third filter layer (416) arranged in sequence from inside to outside between the transmission components; It also includes a second brush (4172) and a third brush (4171) respectively arranged on the inner walls of the second filter layer (415) and the third filter layer (416). When the transmission component is running, the inner section of the second filter layer (415) rotates eccentrically along the outer wall of the first filter layer (414), and the second brush (4172) can clean the outer wall of the first filter layer (414). The outer section of the second filter layer (415) rotates eccentrically along the inner wall of the third filter layer (416), and the second brush (4172) can clean the outer wall of the second filter layer (415); The outer wall of the cylinder (314) is circumferentially distributed with suction modules and water-oil separation modules connected to each suction module. When the suction modules are in operation, sewage passes through the first filter layer (414), the second filter layer (415) and the third filter layer (416) from the inside to the outside in sequence to complete multiple filtrations and achieve water-oil separation under the action of the water-oil separation modules.

2. The device for recovering and treating waste oily water for a pontoon according to claim 1, characterized in that: The transmission assembly includes a transmission ring assembly and a transmission frame assembly at the upper and lower ends; The transmission ring assembly comprises a first ring body (411), a second ring body (412) and a third ring body (413) which are fixedly connected in sequence from the inside to the outside, wherein the second ring body (412) is eccentrically arranged relative to the first ring body (411) and the third ring body (413), and a through groove (422) is provided on the first ring body (411); The transmission frame assembly comprises a first frame body (423), a second frame body (424) and a third frame body (425) which correspond to and are arranged relatively to the first ring body (411), the second ring body (412) and the third ring body (413) one by one; and a plate body (421) fixed between the first filter layer (414) and the third filter layer (416), and the second filter layer (415) is limited at both ends of the plate body (421), wherein the first filter layer (414) is rotatably mounted with the first ring body (411) and the first frame body (423), the second filter layer (415) is sleeved between the second ring body (412) and the second frame body (424) and is eccentrically arranged with the first filter layer (414) and the third filter layer (416), and the third filter layer (416) is rotatably mounted with the third ring body (413) and the third frame body (425) and is fixed with the first filter layer (414) and the cylinder body (314).

3. The device for recovering and treating waste oily water for a pontoon according to claim 1, characterized in that: A connecting pipeline for connecting the transmission ring assembly and the storage tank module is also installed between the transmission ring assembly and the storage tank module; The connecting pipeline comprises a docking chamber (313) fixed on the top of the cylinder (314) and connected to the upper edge of the through groove (422), and a pipe body (312) annularly connected to the docking chamber (313), and one end of a plurality of pipe bodies (312) away from the docking chamber (313) is plugged and connected to a transfer chamber (311), and the transfer chamber (311) is connected to the storage tank module.

4. The device for recovering and treating waste oily water for a pontoon according to claim 3 is characterized by: A driving motor (418) and a connecting rod (419) fixed to the output end of the driving motor (418) are arranged on the top of the docking bin (313), and the bottom end of the connecting rod (419) passes through the through holes provided on the docking bin (313) and the first ring body (411) in sequence and is fixedly connected to the first ring body (411) and the first frame body (423), and serves as a driving source for the synchronous rotation of the transmission ring assembly and the transmission frame assembly.

5. The device for recovering and treating waste oily water for a pontoon according to claim 4, characterized in that: A scraper assembly is also provided in the middle of the first filter layer (414) for cleaning the inner wall of the first filter layer (414); The scraper assembly comprises a scraper body (420) which is annularly fixed on the connecting rod (419) and is in contact with the inner wall of the first filter layer (414).

6. The device for recovering and treating waste oily water for a pontoon according to claim 1, characterized in that: Each suction module comprises two sets of transmission disc assemblies which are arranged relatively to each other, and each transmission disc assembly comprises a first disc body (614), a second disc body (615) and a third disc body (616) which are fixed in sequence from the inside to the outside; and a first transmission ring (617) and a third transmission ring (611) which are rotatably mounted between the two first disk bodies (614) and between the two third disk bodies (616), respectively, and a connecting plate (618) is fixed at the middle of the bottom surface of the first transmission ring (617) and the third transmission ring (611); It also includes a second transmission ring (619) sleeved between the two second disks (615), and the two ends of the second transmission ring (619) are limitedly installed on both sides of the connecting plate (618) and eccentrically distributed with the first disk (614) and the third disk (616); The bottom ends of the third transmission ring (611) are also provided with an inlet (612) and an outlet (613), and the inlet (612) and the cylinder (314) are detachably mounted. And a motor is arranged in one of the transmission disc assemblies and fixed to the first disc body (614), and is used for synchronous rotation of the first disc body (614), the second disc body (615) and the third disc body (616).

7. The device for recovering and treating waste oily water for a pontoon according to claim 6, characterized in that: A placement box (620) is also provided on the top of the third transmission ring (611), and a mounting groove is provided on the top of the third transmission ring (611), wherein a transparent layer (621) connected to the placement box (620) is provided in the mounting groove.

8. The device for recovering and treating waste oily water for a pontoon according to claim 1, characterized in that: The shock-absorbing assembly module includes an elastic bag (811); The storage tank module comprises a platform (111) fixed on the top of the elastic bag (811), a first connecting plate (211) annularly fixed on the top of the platform (111), a telescopic sleeve (212) fixed on each of the first connecting plates (211), and a telescopic rod (213) telescopically installed inside the telescopic sleeve (212), a second connecting plate (216) fixed on the upper part of the telescopic rod (213), a mounting ring (214) fixed in the middle part, and a spring (215) connected to the outer wall of the telescopic rod (213) between the mounting ring (214) and the telescopic sleeve (212); It also includes a foldable storage bag (217) fixed to a plurality of second connecting plates (216) for storing sewage; further, a connecting piece (101) is provided on the top of the foldable storage bag (217).

9. The device for recovering and treating waste oily water for a pontoon according to claim 2, characterized in that: A sewage circulation treatment module is also provided between the third frame (425) and the transfer bin (311) for multi-stage filtration of sewage; the sewage circulation treatment module comprises a mounting frame (511) fixed to the bottom of the third frame (425) and connected thereto, and a filter plate (512) is provided on a step portion in the middle section of the mounting frame (511); and a reflux pipe (513) annularly connected to the lower part of the installation frame (511), and one end of each reflux pipe (513) away from the installation frame (511) passes through a through hole provided in the side wall of the cylinder (314) and communicates with the upper side wall of the foldable storage bag (217), and each reflux pipe (513) is provided with a pump body (514); It also includes a one-way valve arranged inside each of the return pipes (513) and flowing toward the folding storage bag (217).

10. The device for recovering and treating waste oily water for a pontoon according to claim 8, characterized in that: The oil-water separation modules correspond to the suction modules one by one, and each oil-water separation module includes a plurality of ultrasonic transducers (913) arranged on the side wall of the elastic bag (811); and a connection frame (911) disposed on the outlet (613) of the corresponding suction module, each connection frame (911) being detachably connected to a valve body (912); It also includes a valve groove (914) which is internally arranged in the valve body (912) and communicated with the outside, and grooves (916) which are staggered up and down are opened on both sides of the valve groove (914), and a stopper (915) is fixed in the area of ​​each groove (916). When the oily wastewater flows from top to bottom, under the action of the stopper (915), the oily wastewater is divided into a mainstream in the valve groove (914) and a tributary in the groove (916), and the tributary is turned around under the action of the groove (916) to collide with the mainstream, forming a vortex and slowing down the flow rate of the oily wastewater.

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