Electrostatic adsorption and membrane filtration type underwater micro-plastic collecting device

Abstract

The utility model discloses an electrostatic adsorption and membrane filtration type underwater micro-plastic collecting device which comprises a silt separation bin, an adsorption bin and a filter bin, a sewage inlet pipe and a sewage passing pipe are arranged on the two sides of a separation main bin of the silt separation bin, and a grating filter plate is clamped in the separation main bin; a three-way sand discharging pipe is welded to the bottom of the separation main bin through a bottom convex bin pipe in an intercommunication mode, underwater micro-plastic is collected by arranging a collection device composed of the silt separation bin, the adsorption bin and the filtering bin, silt can be intercepted in advance through a grating filter plate in the silt separation bin, and the water flow speed is reduced through a wedge-shaped divider in the adsorption bin; the micro-plastic can be more fully contacted with the carbon electrode plate for collection, the carbon electrode plate is assisted by the ultrasonic vibrator to release the micro-plastic, and the filter bin where the semi-permeable membrane is located is matched with a double-filter structure, so that the micro-plastic can be accurately intercepted, the defect of low interception rate of a traditional large-aperture filter cover is overcome, and the efficient collection of the micro-plastic is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to water body micro -plastic pollution treatment technical field especially relates to a electrostatic adsorption and membrane filtration formula underwater micro -plastic collection device. BACKGROUND

[0002] Micro -plastic in aquatic ecosystem can be transmitted and accumulated through food chain, and after small aquatic organism intakes micro -plastic, will be preyed on by large -sized organism, leading to the enrichment of micro -plastic in high -level organism of food chain, can influence the structure and function of entire ecological system, therefore, need to collect and govern underwater micro -plastic.

[0003] At present, some underwater micro -plastic collection devices usually adopt two kinds of filter covers with large aperture and small aperture to carry out secondary filtration when collecting underwater micro -plastic, but silt particles, plastic bags and other sundries still cause the bottom filter cover to be blocked, and its self -adaptability and operation ability are weak, and the aperture of filter cover is usually large, and the interception rate of micro -plastic is low, so it is difficult to realize the effective collection of underwater micro -plastic, for this purpose, the utility model provides a electrostatic adsorption and membrane filtration formula underwater micro -plastic collection device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a electrostatic adsorption and membrane filtration formula underwater micro -plastic collection device, and the collection of underwater micro -plastic is carried out through the collection device of the combination of silt separation bin, adsorption bin and filter bin, the silt in silt separation bin can be intercepted in advance by the grid filter plate, avoids its subsequent processing link and causes the blockage, the wedge-shaped partition ware in adsorption bin reduces the water flow velocity, makes micro -plastic more fully contact with carbon electrode plate, utilizes electrostatic adsorption principle, significantly improves micro -plastic collection efficiency, and with ultrasonic vibrator auxiliary carbon electrode plate releases micro -plastic, avoids its accumulation and blockage on the surface of electrode plate, ensures that the adsorption link is long -term stable operation, and the filter bin of the semi -permeable membrane adopts double -filtering structure, can accurately intercept micro -plastic, makes up the defect that traditional large -aperture filter cover is low in interception rate, realizes the efficient collection of micro -plastic, and the utility model combines electrostatic adsorption and membrane filtration technology, makes micro -plastic directional movement to carbon electrode plate through the effect of electric field, then forms enrichment liquid by ultrasonic auxiliary release, finally, accurate filtration is carried out by semi -permeable membrane, ensures the efficient capture of micro -plastic, can effectively solve the problems in the background art.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a kind of electrostatic adsorption and membrane filtration underwater microplastic collection device, including silt separation bin, adsorption bin and filter bin, the separation main bin of silt separation bin is provided with inlet pipe and overflow pipe on both sides, and grid filter plate is clamped in the bin of separation main bin, the bottom of separation main bin is interconnected by bottom convex bin pipe Welded with three-way sand discharge pipe, the adsorption main bin of adsorption bin is provided with inlet pipe and drain pipe on both sides, and inlet pipe is connected with overflow pipe flange, wedge-shaped partition is inserted in the bin of adsorption main bin, and the adsorption main bin between wedge-shaped partition is opened with inner welding bottom baffle sink cavity, and adsorption main bin bottom is welded with the bin of cave box that is interconnected with sink cavity, carbon electrode plate is inserted on the surface of bottom baffle, and liquid collection groove is opened on the surface of the plate body of bottom baffle, the bottom of adsorption main bin is connected with main filter bin by bottom mounting frame, and semi-permeable membrane for collecting microplastic is installed in the bin body of main filter bin.

[0007] Further, the silt separation bin includes a separation main bin, a separation bin cover and a grid filter plate, the bin body of the separation main bin is interconnected with an inlet pipe and an overflow pipe on both sides, and a flange plate is arranged at the pipe opening of the inlet pipe and the overflow pipe, U-shaped supports for clamping the grid filter plate are symmetrically welded at the inner bin wall of the separation main bin close to the overflow pipe, the bottom of the separation main bin between the U-shaped supports and the inlet pipe is protruded downward with a bottom convex bin pipe, and the single-side pipe opening of the bottom convex bin pipe is interconnected with the elbow pipe of a three-way sand discharge pipe, the bin opening top end of the separation main bin is locked with the separation bin cover by bolts, and a sealing gasket A is pressed between the separation bin cover and the separation main bin.

[0008] By adopting the above technical scheme, after placing the sealing gasket A at the top end of the separation main bin of the silt separation bin, the separation bin cover can be pressed on the surface of the sealing gasket A, and then the separation bin cover and the silt separation bin can be locked by bolts for detachable installation, the grid filter plate can be clamped in the bin of the separation main bin by the U-shaped supports, after the inlet pipe of the silt separation bin is flange-connected with the water outlet end of the sewage pump through the pipeline with the flange plate, the sewage with microplastics can be flushed into the separation main bin, and some silt impurities in the water can be intercepted at the grid filter plate and sink downward into the bottom convex bin pipe, the flange plate is arranged on the three-way sand discharge pipe of the bottom convex bin pipe, so that the three-way sand discharge pipe can be flange-connected with an electric valve, to facilitate opening the three-way sand discharge pipe for sand discharge and removal at regular intervals, and when the sand is not discharged, the electric valve can be closed, so that the water in the separation main bin will not be reduced.

[0009] Further, the over-pollution pipe is connected to the water inlet pipe of the adsorption chamber by bolt and nut flange, and the adsorption chamber comprises an adsorption main chamber, an adsorption chamber cover, a connecting pipe, a wedge-shaped divider and a carbon electrode plate. The water inlet pipe and the water outlet pipe are mutually welded outside the chamber walls on both sides of the adsorption main chamber, and the corner insertion slots for inserting the wedge-shaped divider are arranged on the inner chamber walls of the bottom of the adsorption chamber near the water inlet pipe and the water outlet pipe. The bucket chamber box is welded on the bottom of the adsorption chamber between the corner insertion slots, the box cavity of the bucket chamber box is vertically interconnected with the sink cavity of the adsorption chamber, the bottom baffle surface welded on the inner wall of the sink cavity is arranged with the electrode plate slots for inserting the carbon electrode plate, the bottom baffle surface outside the electrode plate slots is throughly arranged with the liquid collecting groove, the gas inlet pipe and the liquid outlet pipe are mutually welded on the both side box pipe openings of the bucket chamber box, and the side mounting column for the ultrasonic vibrator is fixed on the remaining two side walls of the bucket chamber box away from the water inlet pipe and the water outlet pipe. The adsorption chamber cover is locked on the upper box opening of the bucket chamber box by bolts, and the sealing pad B is pressed between the adsorption chamber cover and the bucket chamber box. The connecting pipe for connecting the carbon electrode plate is mutually welded on the top end of the adsorption chamber cover.

[0010] By adopting the above technical scheme, the adsorption main bin of the adsorption bin has an angle slot for arranging and inserting a wedge-shaped separator, the wedge-shaped separator can resist the water flow, thereby reducing the flow rate of the water flow in the adsorption main bin, then a carbon electrode plate can be inserted into the polar plate slot at the bottom baffle of the adsorption main bin, at the same time, a sealing pad B can be placed at the top end of the adsorption main bin, then the end connector of the carbon electrode plate can be connected to a waterproof electrode lead which is externally connected to the connecting pipe of the adsorption bin cover, then the sealing pad B is pressed and placed on the adsorption bin cover, a bolt is screwed between the adsorption bin cover and the adsorption main bin to lock them, at the same time, the water inlet pipe of the adsorption main bin can be flange-connected to the sewage pipe of the silt separation bin to communicate, so that the sewage after silt separation can enter the adsorption main bin, then the sewage can be discharged outward along the drain pipe, the hopper box below the adsorption main bin can be flange-connected to the electric valve through the liquid discharge pipe, the air inlet pipe of the hopper box can also be flange-connected to the electric valve, and the electric valve is connected to the gas outlet pipe of the external gas blowing device, at the same time, the side-mounted column of the adsorption main bin can be coated with insulating glue and then screwed with the ultrasonic vibrator, and the contact surface between the ultrasonic vibrator and the adsorption main bin is coated with insulating glue for contact, after the carbon electrode plate is electrified to generate an electric field, since the microplastics in the water have a certain charge, they will move directionally under the action of the electric field, thereby being adsorbed to the surface of the carbon electrode plate with opposite charge, after the water in the adsorption main bin stops flowing, the carbon electrode plate stops supplying power, then the residual water in the adsorption main bin can be controlled by the ultrasonic generator connected to the ultrasonic vibrator to make the ultrasonic vibrator transmit ultrasonic waves to the adsorption main bin, the cavitation effect generated by the high-frequency sound waves forms micro bubbles in the liquid, and the impact force generated when the bubbles burst helps the microplastics to separate from the carbon electrode plate, thereby making the liquid in the adsorption main bin mixed with the microplastics to form microplastic-rich liquid, and the liquid can pass through the bottom baffle along the liquid collection groove and enter the hopper box along the sink cavity, and the enriched liquid can be discharged after the electric valve at the liquid discharge pipe is opened.

[0011] Further, bottom mounting frames are symmetrically welded below the filter bins on both sides of the hopper box, and the vertical frame plates of the bottom mounting frames are locked with main filter bins of the filter bins through bolts, the filter bins comprise the main filter bins, filter bin covers, bottom connecting frames, grid support plates, metal support frames and semi-permeable membranes, the top ends of the bin bodies of the main filter bins are locked with the filter bin covers through bolts, and sealing pads C are pressed and connected between the filter bin covers and the main filter bins, bottom connecting frames are welded below the filter bin covers, side insertion slots for inserting the grid support plates into the frames are formed in the side frame walls of the bottom connecting frames, the metal support frames are clamped in the grid support plates, and the semi-permeable membranes are fixed in the frame openings of the metal support frames, the bin bottoms of the main filter bins are protruded downward with convex pipes, and three-way tail discharge pipes are intercommunicatively welded at the side openings of the convex pipes of the main filter bins, and inlet filter pipes are intercommunicatively welded at the top ends of the cover bodies of the filter bin covers.

[0012] By adopting the technical scheme, after the bottom mounting frame is welded outside the adsorption main bin, the bottom mounting frame can be connected to the main filter bin by means of bolt locking, the surface of the main filter bin can be provided with a sealing gasket C, the metal support frame can be fixedly bonded with a semi-permeable membrane, then the metal support frame is clamped into the grid support plate, and then the grid support plate with the metal support frame is inserted into the cavity of the frame from the side slot of the bottom frame, so that the semi-permeable membrane can be used for filtering and retaining microplastics at the cavity of the bottom frame, then the bottom frame can be placed in the main filter bin, then the filter cover is pressed on the surface of the sealing gasket C, and the filter cover and the main filter bin are locked by screwing the bolt, and meanwhile, the three-way tail exhaust pipe of the main filter bin can be flange-connected with the electric valve, so that the liquid at the three-way tail exhaust pipe can be conveniently controlled to be discharged, and the inlet filter pipe at the top end of the filter cover can be flange-connected with the electric valve below the liquid exhaust pipe for controllable on-off connection.

[0013] Further, the frame body of the bottom frame is provided with right-angle plates at four corners of the top end, and the right-angle plates of the bottom frame are welded to the lower surface of the filter cover, and the side insertion slots of the side surface of the bottom frame are symmetrically provided with two groups;

[0014] By adopting the technical scheme, the bottom frame is connected to the filter cover below by welding the right-angle plates, and the double groups of grid support plates can be inserted into the double groups of side insertion slots of the bottom frame, so that the double groups of filter structures can be installed at the bottom frame.

[0015] Further, the outside of the adsorption main bin is arranged with threaded columns of side mounting columns above the filter cover, and the rectangular cover frame of the side mounting columns is welded to the outer wall of the adsorption main bin;

[0016] By adopting the technical scheme, after the ultrasonic vibrator is screwed and mounted on the side mounting column of the adsorption main bin, the rectangular cover frame can cover the side mounting column and the ultrasonic vibrator outside the side mounting column.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The collecting device composed of the silt separation bin, the adsorption bin and the filter bin is used for collecting the underwater microplastics, the grid filter plate in the silt separation bin can pre-intercept silt to avoid the silt from entering the subsequent processing link to cause blockage, the wedge-shaped divider in the adsorption bin reduces the water flow speed, so that the microplastics can be more fully contacted with the carbon electrode plate, the electrostatic adsorption principle is used to significantly improve the microplastic collection efficiency, and the ultrasonic vibrator is used to assist the carbon electrode plate to release the microplastics, so as to avoid the microplastics from being accumulated and blocked on the surface of the electrode plate, ensure the long-term stable operation of the adsorption link, the filter bin with the semi-permeable membrane adopts the double filter structure, so that the microplastics can be accurately intercepted, the defect of low interception rate of the traditional large-aperture filter cover is made up, and the efficient collection of the microplastics is realized.

[0019] And the utility model discloses the electrostatic adsorption is combined with membrane filtration technology, and through the electric field effect makes the directional movement of microplastic to carbon electrode plate, and then forms the enrichment liquid through ultrasonic wave auxiliary release, finally by the accurate filtration of semipermeable membrane, ensure the efficient capture of microplastic, and the modular design is convenient to detach and maintain, and the independent opening and closing structure of each chamber makes the cleaning and replacement operation of internal components simple and easy, the chamber cover of separation main chamber, adsorption main chamber and filter chamber can be detached, and it is convenient for staff to clean and maintain internal structure regularly. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0021] Figure 2 It is the mud separation chamber, adsorption chamber and filter chamber split schematic drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0022] Figure 3 It is the mud separation chamber explosion drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0023] Figure 4 It is the adsorption chamber explosion drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0024] Figure 5 It is the bottom baffle and adsorption main chamber split drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0025] Figure 6 It is the filter chamber explosion drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0026] Figure 7 It is the separation main chamber and separation chamber cover split schematic drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0027] Figure 8 It is the adsorption main chamber and adsorption chamber cover split schematic drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0028] Figure 9 It is the main filter chamber and filter chamber cover split schematic drawing of the utility model discloses a kind of electrostatic adsorption and membrane filtration formula underwater microplastic collection device.

[0029] In the figure: 1, sediment separation bin; 2, adsorption bin; 3, filter bin; 4, bottom mounting frame; 5, separation main bin; 6, separation bin cover; 7, sealing gasket A; 8, sewage inlet pipe; 9, sewage outlet pipe; 10, bottom convex bin pipe; 11, U-shaped support; 12, grid filter plate; 13, three-way sand discharge pipe; 14, adsorption main bin; 15, water inlet pipe; 16, drain pipe; 17, adsorption bin cover; 18, sealing gasket B; 19, wiring pipe; 20, corner slot; 21, wedge-shaped divider; 22, bottom partition; 23, carbon electrode plate; 24, hopper box; 25, air inlet pipe; 26, liquid discharge pipe; 27, side-mounted column; 28, ultrasonic vibrator; 29, electrode plate groove; 30, liquid collection groove; 31, main filter bin; 32, filter bin cover; 33, sealing gasket C; 34, filter inlet pipe; 35, bottom connecting frame; 36, grid support plate; 37, metal support frame; 38, semi-permeable membrane; 39, three-way tail discharge pipe. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application will be further described in conjunction with specific embodiments.

[0031] As shown in Figures 1-9 An electrostatic adsorption and membrane filtration type underwater micro-plastic collection device, comprising a sediment separation bin 1, an adsorption bin 2 and a filter bin 3, the separation main bin 5 of the sediment separation bin 1 is provided with a sewage inlet pipe 8 and a sewage outlet pipe 9 on both sides, and a grid filter plate 12 is clamped in the separation main bin 5, the bottom of the separation main bin 5 is interconnected and welded with a three-way sand discharge pipe 13 through a bottom convex bin pipe 10, the adsorption main bin 14 of the adsorption bin 2 is provided with a water inlet pipe 15 and a drain pipe 16 on both sides, and the water inlet pipe 15 is flange-connected with the sewage outlet pipe 9, a wedge-shaped divider 21 is inserted in the adsorption main bin 14, a sink cavity with a bottom partition 22 welded inside is formed between the wedge-shaped dividers 21 in the adsorption main bin 14, and a hopper box 24 interconnected with the sink cavity is welded at the bottom of the adsorption main bin 14, a carbon electrode plate 23 is inserted on the surface of the bottom partition 22, and a liquid collection groove 30 is formed on the surface of the plate body of the bottom partition 22, the bottom of the adsorption main bin 14 is connected with a main filter bin 31 through a bottom mounting frame 4, and a semi-permeable membrane 38 for collecting micro-plastics is installed in the bin body of the main filter bin 31.

[0032] The silt separation bin 1 comprises a separation main bin 5, a separation bin cover 6 and a grid filter plate 12. The bin body of the separation main bin 5 is interconnected and welded with an inlet pipe 8 and an outlet pipe 9 at both sides, flanges are arranged at the pipe openings of the inlet pipe 8 and the outlet pipe 9, U-shaped supports 11 for clamping the grid filter plate 12 are symmetrically welded at the inner bin wall of the separation main bin 5 close to the outlet pipe 9, a bottom convex bin pipe 10 is protruded downward at the bottom of the separation main bin 5 between the U-shaped supports 11 and the inlet pipe 8, a bend pipe of a three-way sand discharge pipe 13 is interconnected and welded at the single-side pipe opening of the bottom convex bin pipe 10, the bin opening top end of the separation main bin 5 is locked by the separation bin cover 6 through bolts, and a sealing gasket A7 is pressed between the separation bin cover 6 and the separation main bin 5.

[0033] By adopting the above technical scheme, after the sealing gasket A7 is placed at the top end of the separation main bin 5 of the silt separation bin 1, the separation bin cover 6 can be pressed on the surface of the sealing gasket A7, then the separation bin cover 6 can be locked with the silt separation bin 1 by using bolts for detachable installation, the grid filter plate 12 can be clamped by the U-shaped supports 11 in the separation main bin 5, after the inlet pipe 8 of the silt separation bin 1 is flange-connected with the outlet end of the sewage pump through the pipe with the flange, the sewage with micro-plastics can be flushed into the separation main bin 5, then some silt impurities in the water can be intercepted at the grid filter plate 12 and fall downward into the bottom convex bin pipe 10, the three-way sand discharge pipe 13 of the bottom convex bin pipe 10 is provided with a flange, so that it can be flange-connected with an electric valve, which is convenient for opening the three-way sand discharge pipe 13 for sand discharge and wiping at regular time, and when the sand is not discharged, the electric valve can be closed, so that the water in the separation main bin 5 will not be reduced.

[0034] The outlet pipe 9 is flange-connected at the water inlet pipe 15 of the adsorption bin 2 through bolts and nuts, the adsorption bin 2 comprises an adsorption main bin 14, an adsorption bin cover 17, a wiring pipe 19, a wedge-shaped divider 21 and a carbon electrode plate 23, the two side bin walls of the adsorption main bin 14 are interconnected and welded with the water inlet pipe 15 and a water outlet pipe 16, the bottom inner bin wall of the adsorption bin 2 close to the water inlet pipe 15 and the water outlet pipe 16 is provided with an angle insertion slot 20 for inserting and installing the wedge-shaped divider 21, a hopper box 24 is welded at the bottom of the adsorption bin 2 between the angle insertion slots 20, the box cavity of the hopper box 24 is vertically interconnected with a sink cavity of the adsorption bin 2, a bottom partition plate 22 is welded at the inner wall of the sink cavity, the surface of the bottom partition plate 22 is arranged with electrode plate grooves 29 for inserting and installing the carbon electrode plate 23, a liquid collecting groove 30 is penetrated and arranged on the surface of the bottom partition plate 22 outside the electrode plate grooves 29, the two side box openings of the hopper box 24 are interconnected and welded with an air inlet pipe 25 and a liquid discharge pipe 26, side mounting columns 27 for screwing and installing ultrasonic vibration elements 28 are fixed on the remaining two side box walls of the hopper box 24 away from the water inlet pipe 15 and the water outlet pipe 16, the upper box opening of the hopper box 24 is locked by the adsorption bin cover 17 through bolts, a sealing gasket B18 is pressed between the adsorption bin cover 17 and the hopper box 24, the adsorption bin cover 17 is interconnected and welded with the wiring pipe 19 for wiring of the carbon electrode plate 23 at the top end.

[0035] By adopting the above technical scheme, the adsorption main bin 14 of the adsorption bin 2 has the angular slot 20, which can arrange and insert the wedge-shaped partition 21. The wedge-shaped partition 21 can resist the water flow, thereby reducing the flow rate of the water flow in the adsorption main bin 14. Then, the bottom baffle 22 of the adsorption main bin 14 can insert the carbon electrode plate 23 in the plate slot 29. Meanwhile, the top end of the adsorption main bin 14 can place the sealing pad B18. Then, the end connector of the carbon electrode plate 23 can pass through some waterproof electrode leads to the outside of the connecting pipe 19 of the adsorption bin cover 17. Then, the sealing pad B18 is pressed and placed on the adsorption bin cover 17. The bolt is screwed between the adsorption bin cover 17 and the adsorption main bin 14 to lock them. Meanwhile, the water inlet pipe 15 of the adsorption main bin 14 can be flange-connected to the sewage pipe 9 of the silt separation bin 1 to communicate. After the silt is separated, the sewage can enter the adsorption main bin 14. Then, the sewage can be discharged outward along the drain pipe 16. The hopper box 24 below the adsorption main bin 14 can be flange-connected to the electric valve through the liquid discharge pipe 26. The air inlet pipe 25 of the hopper box 24 can also be flange-connected to the electric valve. The electric valve is connected to the gas outlet pipe of the external gas blowing device. Meanwhile, the side-mounted column 27 of the adsorption main bin can be coated with insulating glue and then screwed with the ultrasonic vibrator 28. The contact surface between the ultrasonic vibrator 28 and the adsorption main bin 14 is coated with insulating glue to contact. After the carbon electrode plate 23 is electrified to generate an electric field, the microplastics in the water have a certain charge. Under the action of the electric field, the microplastics will move directionally and be adsorbed to the surface of the carbon electrode plate 23 with opposite charge. After the water in the adsorption main bin 14 stops flowing, the carbon electrode plate 23 stops supplying power. Then, the residual water in the adsorption main bin 14 can be controlled by the ultrasonic generator connected to the external controllable ultrasonic generator. The ultrasonic vibrator 28 transmits ultrasonic waves to the adsorption main bin 14. The cavitation effect generated by the high-frequency sound waves forms micro-bubbles in the liquid. The impact force generated when the bubbles burst helps the microplastics to separate from the carbon electrode plate 23, so that the liquid in the adsorption main bin 14 and the microplastics form a microplastics-rich liquid. These rich liquids can pass through the bottom baffle 22 along the liquid collection groove 30 and enter the hopper box 24 along the sink cavity. After the electric valve at the liquid discharge pipe 26 is opened, the rich liquids can be discharged.

[0036] The bottom of the filter bin 3 is welded with the bottom connecting frame 35, and the side frame wall of the bottom connecting frame 35 is provided with a side insertion slot for inserting the grid support plate 36 into the frame. The grid support plate 36 is clamped with the metal support frame 37, and the frame opening of the metal support frame 37 is fixed with the semi-permeable membrane 38. The bottom of the main filter bin 31 protrudes downward with a convex pipe, and the side opening of the convex pipe of the main filter bin 31 is interconnectedly welded with a three-way tail exhaust pipe 39. The top end of the filter bin cover 32 is interconnectedly welded with an inlet filter pipe 34.

[0037] By adopting the above technical scheme, after the bottom mounting frame 4 is welded outside the adsorption main bin 14, the bottom mounting frame 4 can be connected by bolting the main filter bin 31 of the filter bin 3. The surface of the main filter bin 31 can be placed with a sealing gasket C33, and the metal support frame 37 can be bonded with a semi-permeable membrane 38. Then the metal support frame 38 is clamped into the grid support plate 36, and then the grid support plate 36 with the metal support frame 38 is inserted into the side insertion slot of the bottom connecting frame 35. The semi-permeable membrane 38 can be used for filtering and retaining microplastics in the frame cavity of the bottom connecting frame 35. Then the bottom connecting frame 35 can be placed in the main filter bin 31, and then the filter bin cover 32 is pressed on the surface of the sealing gasket C33. The filter bin cover 32 and the main filter bin 31 are locked by using bolts. At the same time, the three-way tail exhaust pipe 39 of the main filter bin 31 can be flange-connected with an electric valve, so that the liquid at the three-way tail exhaust pipe 39 can be conveniently controlled to be discharged. The inlet filter pipe 34 at the top end of the filter bin cover 32 can be flange-connected with an electric valve below the liquid discharge pipe 26 for controllable on-off connection.

[0038] The top end of the frame body of the bottom connecting frame 35 is protruded with a right angle plate at four corners, and the right angle plate of the bottom connecting frame 35 is welded on the lower surface of the filter bin cover 32. The side insertion slot of the side surface of the bottom connecting frame 35 is symmetrically provided with two groups.

[0039] By adopting the above technical scheme, the bottom connecting frame 35 is connected by welding a right angle plate under the filter bin cover 32, and the double grid support plates 36 can be inserted into the double side insertion slots of the bottom connecting frame 35, so that the double filter structures can be installed at the bottom connecting frame 35.

[0040] The outer side of the adsorption main bin 14 is arranged with a threaded column body of the side mounting column 27 above the filter bin cover 32, and the outer wall of the adsorption main bin 14 is welded with a rectangular cover frame for covering the side mounting column 27.

[0041] By adopting the above technical scheme, after the side-mounted column 27 of the adsorption main bin 14 is screw-connected and installed with the ultrasonic vibrator 28, the rectangular cover frame can cover the side-mounted column 27 and the ultrasonic vibrator 28 outside the side-mounted column 27.

[0042] It should be noted that the utility model is a kind of electrostatic adsorption and membrane filtration type underwater micro plastic collection device, when the micro plastic collection device is used for underwater micro plastic collection, the grid filter plate 12 is clamped in the separation main bin 5 of the silt separation bin 1 with the U-shaped support 11, then the sealing gasket A7 cooperates with the separation bin cover 6 and is locked at the top end of the separation main bin 5 by bolt to seal, then the inlet pipe 8 of the separation main bin 5 is flange-connected with the outlet end of the sewage pump after being connected with the pipeline with flange, and the outlet pipe 9 of the separation main bin 5 can be flange-connected at the inlet pipe 15 of the adsorption bin 2;

[0043] The wedge-shaped divider 21 is inserted in the angular slot 20 in the adsorption main bin 14, then the polar plate slot 29 on the surface of the bottom baffle 22 is inserted with the carbon electrode plate 23, and the top end of the adsorption main bin 14 can be placed with the sealing gasket B18, then the terminal end of the carbon electrode plate 23 can be connected with the electrode lead outside the connection pipe 19 of the adsorption bin cover 17 by some waterproof electrode lead, the electrode lead is connected with the upper terminal end of the carbon electrode plate 23, and the electrode lead can be wrapped with waterproof adhesive for waterproofing, and the connection pipe 19 can be provided with a waterproof rubber plug, so that the electrode lead can be pulled out through the center hole of the rubber plug for waterproof installation.

[0044] Then the bucket box 24 below the adsorption main bin 14 can be flange-connected with the electric valve through the liquid discharge pipe 26, the air inlet pipe 25 of the bucket box 24 can also be flange-connected with the electric valve, and the electric valve is connected with the gas outlet pipe of the external gas blowing device, the side-mounted column 27 of the adsorption main bin can be coated with insulating glue and then screw-connected with the ultrasonic vibrator 28, and the contact surface between the ultrasonic vibrator 28 and the adsorption main bin 14 is coated with insulating glue for contact, the electric valve at the liquid discharge pipe 26 can be flange-connected with the filter inlet pipe 34 of the filter bin 3, the metal support frame 37 is clamped with the semi-permeable membrane 38 into the grid support plate 6, then the grid support plate 6 can be inserted in the side slot of the bottom connecting frame 35, the sealing gasket C33 is placed on the surface of the main filter bin 31, then the bottom connecting frame 35 can be placed in the main filter bin 31, the filter cover 32 is pressed on the surface of the main filter bin 31 with the sealing gasket C33, and the filter cover 32 and the main filter bin 31 are locked by bolts, at this time, the three-way tail discharge pipe 39 of the filter bin 31 can be flange-connected with the electric valve, so that the liquid at the three-way tail discharge pipe 39 can be conveniently controlled to discharge, the main filter bin 31 can be locked in the bottom mounting frame 4 of the separation main bin 5 by bolts, and then a supporting frame body matched with the structure and shape of the separation main bin 5, the adsorption main bin 14 and the main filter bin 31 can be customized by skilled mechanics or welders;

[0045] The sewage pump communicating with the sewage inlet pipe 8 can be put into the sewage containing underwater microplastics into the separation main bin 5, and then the silt in the sewage can be filtered and retained after being washed to the grid filter plate 12, and the silt falls under the self-weight and is collected in the bottom convex bin pipe 10, and the sewage after simple separation of silt can enter the adsorption main bin 14 in the adsorption bin 2 along the sewage pipe 9 at the separation main bin 5, and the slow flow water can be more gently contacted with the carbon electrode plate 23 after the slow flow water in the adsorption main bin 14 encounters the resistance of the wedge-shaped divider 21, and the electric field is generated after the carbon electrode plate 23 is powered on at the carbon electrode plate 23. Under the action of the electric field, the microplastics in the water will move directionally and be adsorbed to the surface of the carbon electrode plate 23 with opposite charge, and the water adsorbed with the microplastics can be normally discharged into the water body along the drain pipe 16, and the carbon electrode plate 23 in the adsorption bin 2 needs to be cleaned according to the data of multiple uses to determine when to clean the microplastics. When cleaning the microplastics, the sewage pump needs to stop pumping, so that the water in the adsorption bin 2 is lower than the drainage liquid level of the drain pipe 16, and the carbon electrode plate 23 stops power supply;

[0046] Then the ultrasonic vibrator 28 is connected to the external controllable ultrasonic generator for control, so that the ultrasonic vibrator 28 transmits ultrasonic waves to the adsorption main bin 14. The cavitation effect generated by high-frequency sound waves forms micro-bubbles in the liquid, and the impact force generated when the bubbles burst helps the microplastics to separate from the carbon electrode plate 23, so that the liquid in the adsorption main bin 14 and the microplastics form a microplastics-rich liquid. These rich liquids can pass through the bottom baffle 22 along the sink cavity to the hopper box 24 along the liquid collection tank 30. After the electric valve at the liquid discharge pipe 26 is opened, the rich liquid can be discharged. At the same time, after the electric valve at the gas inlet pipe 25 is opened, the gas blowing device can blow compressed gas into the gas inlet pipe 25. These gases can help the microplastics-rich liquid in the hopper box 24 to accelerate into the liquid discharge pipe 26 along the tubular cavity at the bottom of the hopper box 24. After the electric valve between the liquid discharge pipe 26 and the filter inlet pipe 34 is opened, the microplastics-rich liquid can enter the main filter bin 31 of the filter bin 3. The semi-permeable membrane 38 at the bottom connecting frame 35 below the filter bin cover 32 can filter and retain the microplastics, so that the liquid of the microplastics-rich liquid passes through the semi-permeable membrane 38 and enters the three-way tail pipe 39. After the electric valve installed at the three-way tail pipe 39 is opened, the liquid with retained microplastics can be smoothly discharged;

[0047] The filter cover 32 of the filter bin 3 is disassembled upwards, the grid support plate 36 in the bottom connecting frame 35 can be pulled out, so as to flush the microplastics collected on the surface of the semi-permeable membrane 38, and the microplastics are treated according to the existing microplastic treatment method, and the respective bin openings of the separation main bin 5, the adsorption main bin 14 and the main filter bin 31 can be disassembled and opened, so that the structures in the respective bins are conveniently taken out for cleaning and maintenance, and the electric control structures described in the application can be connected and controlled by professional electrical and mechanical technicians according to their years of work experience and combined with the operation requirements of the microplastic treatment site, and excessive description is not made here.

[0048] It should be noted that the utility model is a kind of electrostatic adsorption and membrane filtration type underwater microplastic collection device, components in the utility model are components known to those skilled in the art, and its structure and principle can be known by technical personnel or obtained by conventional experimental method.

[0049] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electrostatic adsorption and membrane filtration type underwater microplastic collection device, characterized in that: The utility model relates to a sand separation bin (1), adsorption bin (2) and filter bin (3) are included, the separation main bin (5) both sides of sand separation bin (1) are provided with inlet sewage pipe (8) and sewage pipe (9), and the separation main bin (5) is equipped with grating filter plate (12) in the bin, and the bottom of separation main bin (5) is interconnected and welded with three -way sand discharge pipe (13) through bottom convex bin pipe (10), the adsorption main bin (14) both sides of adsorption bin (2) are provided with inlet water pipe (15) and drain pipe (16), and inlet water pipe (15) is connected with sewage pipe (9) flange, the adsorption main bin (14) is inserted with wedge -shaped partition (21) in the bin, and the adsorption main bin (14) between wedge -shaped partition (21) is opened with the inner welding bottom baffle (22) of sink cavity, and the adsorption main bin (14) bottom is welded with the hopper box (24) of with sink cavity intercommunication, the surface of bottom baffle (22) is inserted with carbon electrode plate (23), and the surface of the plate body of bottom baffle (22) is opened with liquid collecting groove (30), the bottom of adsorption main bin (14) is connected with main filter bin (31) through bottom mounting bracket (4), and the bin body of main filter bin (31) is installed with semi -permeable membrane (38) for collecting microplastic.

2. The electrostatic adsorption and membrane filtration type underwater microplastic collection device according to claim 1, characterized in that: The utility model relates to a sand separation bin (1), adsorption bin (2) and filter bin (3) are included, the separation main bin (5) both sides of sand separation bin (1) are provided with inlet sewage pipe (8) and sewage pipe (9), and the separation main bin (5) is equipped with grating filter plate (12) in the bin, and the bottom of separation main bin (5) is interconnected and welded with three -way sand discharge pipe (13) through bottom convex bin pipe (10), the adsorption main bin (14) both sides of adsorption bin (2) are provided with inlet water pipe (15) and drain pipe (16), and inlet water pipe (15) is connected with sewage pipe (9) flange, the adsorption main bin (14) is inserted with wedge -shaped partition (21) in the bin, and the adsorption main bin (14) between wedge -shaped partition (21) is opened with the inner welding bottom baffle (22) of sink cavity, and the adsorption main bin (14) bottom is welded with the hopper box (24) of with sink cavity intercommunication, the surface of bottom baffle (22) is inserted with carbon electrode plate (23), and the surface of the plate body of bottom baffle (22) is opened with liquid collecting groove (30), the bottom of adsorption main bin (14) is connected with main filter bin (31) through bottom mounting bracket (4), and the bin body of main filter bin (31) is installed with semi -permeable membrane (38) for collecting microplastic.

3. The electrostatic adsorption and membrane filtration type underwater microplastic collection device according to claim 2, characterized in that: The over-pollution pipe (9) is connected to the water inlet pipe (15) of the adsorption bin (2) by bolt and nut flange, and the adsorption bin (2) comprises an adsorption main bin (14), an adsorption bin cover (17), a wiring pipe (19), a wedge-shaped divider (21) and a carbon electrode plate (23), the outer side walls of the adsorption main bin (14) are interconnected by welding with the water inlet pipe (15) and the drain pipe (16), and the bottom inner wall of the adsorption bin (2) near the water inlet pipe (15) and the drain pipe (16) is provided with an angle insertion slot (20) for inserting the wedge-shaped divider (21), the bottom of the adsorption bin (2) between the angle insertion slots (20) is welded with a hopper box (24), the box cavity of the hopper box (24) is vertically interconnected with the sink cavity of the adsorption bin (2), and the surface of the bottom baffle (22) welded on the inner wall of the sink cavity is arranged with electrode plate grooves (29) for inserting the carbon electrode plate (23), the surface of the bottom baffle (22) outside the electrode plate grooves (29) is provided with a liquid collecting groove (30) penetratingly, the two side box pipe openings of the hopper box (24) are interconnected by welding with the gas inlet pipe (25) and the liquid discharge pipe (26), and the remaining two side box walls of the hopper box (24) away from the water inlet pipe (15) and the drain pipe (16) are fixed with side mounting columns (27) for screwing the ultrasonic vibrator (28), the upper box opening of the hopper box (24) is locked by a bolt with the adsorption bin cover (17), and the adsorption bin cover (17) and the hopper box (24) are pressure-connected with a sealing gasket B (18), and the top end of the adsorption bin cover (17) is interconnected by welding with the wiring pipe (19) for wiring of the carbon electrode plate (23).

4. The electrostatic adsorption and membrane filtration type underwater microplastic collection device according to claim 3, characterized in that: The bottom mounting frame (4) is symmetrically welded below the filter bin (3) on both sides of the hopper box (24), and the vertical frame plate of the bottom mounting frame (4) is locked by a bolt with the main filter bin (31) of the filter bin (3), the filter bin (3) comprises a main filter bin (31), a filter bin cover (32), a bottom connecting frame (35), a grid supporting plate (36), a metal supporting frame (37) and a semi-permeable membrane (38), the top end of the bin body of the main filter bin (31) is locked by a bolt with the filter bin cover (32), and the filter bin cover (32) and the main filter bin (31) are pressure-connected with a sealing gasket C (33), the bottom connecting frame (35) is welded below the filter bin cover (32), and the side frame wall of the bottom connecting frame (35) is provided with a side insertion slot for inserting the grid supporting plate (36) into the frame, the metal supporting frame (37) is clamped in the grid supporting plate (36), and the frame opening of the metal supporting frame (37) is fixed with a semi-permeable membrane (38), the bin bottom of the main filter bin (31) is protruded downward with a convex pipe, and the convex pipe side opening of the main filter bin (31) is interconnected by welding with a three-way tail discharge pipe (39), and the cover body top end of the filter bin cover (32) is interconnected by welding with an inlet filter pipe (34).

5. The electrostatic adsorption and membrane filtration type underwater microplastic collection device according to claim 4, characterized in that: The frame body top end of the bottom connecting frame (35) is protruded with a right angle plate at four corners, and the right angle plate of the bottom connecting frame (35) is welded on the lower surface of the filter bin cover (32), and the side insertion slots of the bottom connecting frame (35) are symmetrically provided with two groups.

6. The electrostatic adsorption and membrane filtration type underwater microplastic collection device according to claim 5, characterized in that: The side-mounted column (27) is arranged and welded on the threaded column above the filter bin cover (32) outside the adsorption main bin (14), and the rectangular cover frame is welded on the outer wall of the adsorption main bin (14) to cover the side-mounted column (27).

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