Electrophoretic wastewater filtration device based on static exchange

Abstract

The utility model discloses an electrophoresis wastewater filtering device based on static exchange relates to electrophoresis wastewater filtering technical field, including bearing plate, bearing frame, first pipeline, mixing jar and second shunt, the bearing plate top is provided with bearing mechanism, the bearing mechanism includes bearing frame and support frame, the bearing plate is fixed with support frame bolt through bearing frame, realizes equipment multistage adaptation function, fine filter bin effluent is sent into reverse osmosis jar through third pipeline and booster pump, and six evenly arranged reverse osmosis membranes in jar increase filtration area, and second shunt and first shunt realize concentrated water and fresh water separation through static exchange process, prolong the residence time of wastewater on the membrane surface, strengthen heavy metal ion interception effect, and booster pump can automatically adjust power according to pressure, and compared with traditional constant voltage mode, it is more energy -conserving, and detachable cover plate is convenient for single branch membrane element maintenance replacement, reduces downtime, and improves equipment operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electrophoretic wastewater filtration technology, specifically to an electrophoretic wastewater filtration device based on static exchange. Background Technology

[0002] Electrophoretic wastewater filtration devices are used to treat wastewater generated during the electrophoretic coating process. They filter, separate, and purify the wastewater using physical, chemical, or biological methods to remove pollutants, achieving environmental emission standards or enabling wastewater reuse. However, existing electrophoretic wastewater filtration devices have some shortcomings, such as:

[0003] The wastewater reuse device for electrophoresis lines described in application number CN202322983169.0 has a weak filtration effect on impurities such as paint residue, metal fragments, and colloidal particles in the wastewater due to the multi-layer gradient filtration of the coarse filter chamber and the composite treatment of the fine filter chamber. This may increase the risk of subsequent reverse osmosis membrane fouling. The lack of a mixing tank and stirring device prevents the wastewater from fully mixing and reacting with the flocculant, hindering the aggregation of colloidal particles into large flocs. This results in poor pretreatment and is detrimental to the removal of pollutants in subsequent filtration processes. Furthermore, the fixed device structure makes it difficult to flexibly adjust the equipment levels according to the scale of wastewater treatment. This may lead to insufficient treatment capacity or waste of equipment resources when treating wastewater of different scales, and it is also inconvenient for transportation and on-site assembly. Utility Model Content

[0004] The purpose of this utility model is to provide an electrophoretic wastewater filtration device based on static exchange, in order to solve the problems mentioned in the background art of existing equipment on the market, such as simple coarse filter chamber filtration level, weak impurity filtration effect, easy to cause subsequent reverse osmosis membrane fouling; lack of mixing tank and stirring device, poor pretreatment effect; fixed structure, difficult to adjust the level according to the treatment scale, inconvenient transportation and assembly, and possible problems of insufficient treatment capacity or waste of resources.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrophoretic wastewater filtration device based on static exchange, comprising a support plate, a support frame, a first pipeline, a mixing tank, and a second diversion pipe;

[0006] A bearing mechanism is provided above the bearing plate. The bearing mechanism includes a bearing frame and a support frame. The bearing plate is fixed to the support frame by bolts through the bearing frame, realizing the multi-level adaptation function of the equipment.

[0007] As a preferred technical solution of this utility model, a support frame is vertically fixed above the support plate, and ten support frames are evenly arranged, with bolt holes evenly opened on the side surface of the support frame;

[0008] Using the above technical solution, the bearing plate is fixed to the support frame by bolts. The equipment level can be flexibly adjusted according to the scale of wastewater treatment, realizing multi-level adaptation function. It not only meets the needs of different treatment volumes, but also facilitates disassembly during transportation and rapid on-site assembly. At the same time, the evenly arranged bearing frame and the symmetrically distributed support frame form a stable support structure, avoiding deformation of the equipment due to heavy load.

[0009] As a preferred technical solution of this utility model, the bearing frame is fixed to the support frame by bolts, and four support frames are evenly fixed on the side of the mixing tank. The bottom of the mixing tank is connected to the first pipeline for water inlet. A waterproof motor is fixedly connected inside the mixing tank, and a protective top is fixedly connected above the waterproof motor. The output shaft of the waterproof motor is fixedly connected to the stirring paddle.

[0010] Using the above technical solution, ten evenly arranged support frames with bolt holes on the sides are fixed to the support frames with bolts, making the installation position of core components such as the mixing tank controllable. The grid-like support layout enhances the overall stability of the equipment. At the same time, the modular design of bolted connections facilitates the individual disassembly and repair of components during later maintenance, reducing maintenance complexity. The waterproof motor inside the mixing tank drives the agitator to rotate, which allows the wastewater and flocculant to mix and react fully, accelerating the agglomeration of colloidal particles into large flocs and improving pretreatment efficiency. The protective top covers the waterproof motor to prevent wastewater from splashing in and causing short circuits, extending the motor's service life and ensuring continuous operation of the equipment.

[0011] As a preferred technical solution of this utility model, the mixing tank is connected to one end of the second pipeline, and the other end of the second pipeline is connected to the coarse filter chamber. The coarse filter chamber is composed of three layers of stainless steel filter screens with gradually decreasing pore size from top to bottom. An isolation net is fixedly connected below the coarse filter chamber, and a fine filter chamber is connected below the isolation net. The fine filter chamber is composed of an activated carbon adsorption layer and a reverse osmosis membrane filtration layer.

[0012] Using the above technical solution, the coarse filter chamber consists of three layers of stainless steel filter screens with gradually decreasing pore sizes from top to bottom. Through this gradient filtration design, paint residue, metal debris, and colloidal particles are sequentially trapped, significantly reducing wastewater turbidity and lessening the load on the subsequent fine filter chamber. An isolation screen separates the coarse and fine filter chambers, preventing floc shedding and interference with the fine filtration process, while simultaneously guiding water flow evenly into the activated carbon adsorption layer. The activated carbon adsorption layer in the fine filter chamber adsorbs organic matter, pigments, and some heavy metal ions from the wastewater. The reverse osmosis membrane filtration layer further traps small molecule pollutants, providing a more efficient and effective filtration process. The subsequent reverse osmosis tank provides pretreatment, reducing the risk of membrane element fouling. The hierarchical design of the isolation mesh and fine filter chamber forms a composite treatment path of "physical interception + chemical adsorption + membrane separation," improving the purification effect. The activated carbon adsorption layer of the fine filter chamber can adsorb organic matter, pigments, and some heavy metal ions in the wastewater, while the reverse osmosis membrane filtration layer further intercepts small molecule pollutants, providing pretreatment for the subsequent reverse osmosis tank and reducing the risk of membrane element fouling. The hierarchical design of the isolation mesh and fine filter chamber forms a composite treatment path of "physical interception + chemical adsorption + membrane separation," improving the purification effect.

[0013] As a preferred technical solution of this utility model, the bottom of the fine filter chamber is connected to one end of the third pipeline, the other end of the third pipeline is connected in series with a booster pump, and the booster pump is connected to the reverse osmosis tank. The reverse osmosis tank is fixedly connected to a second diversion pipe, the second diversion pipe is connected to the reverse osmosis membrane, the reverse osmosis membrane is connected to the first diversion pipe, a cover plate is fitted on the top of the first diversion pipe, and six reverse osmosis membranes are evenly arranged.

[0014] Using the above technical solution, the effluent from the fine filtration chamber is sent to the reverse osmosis tank by a booster pump. Six evenly arranged reverse osmosis membranes increase the filtration area. The second and first split pipes achieve the separation of concentrate and desalination through a static exchange process, extending the residence time of wastewater on the membrane surface and enhancing the removal effect of heavy metal ions. The booster pump automatically adjusts its power according to the pressure, which greatly improves the energy saving effect compared with the traditional constant pressure mode. The removable cover plate facilitates the maintenance and replacement of individual membrane elements and reduces downtime.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Bearing mechanism design and multi-level adaptation function: Ten evenly arranged bearing frames are vertically fixed above the bearing plate, and bolt holes are opened on the side. They are connected to four support frames evenly fixed on the side of the mixing tank by bolts. This design can flexibly adjust the equipment level according to the scale of wastewater treatment and achieve multi-level adaptation: it can not only meet the needs of different treatment volumes, but also facilitate disassembly during transportation and rapid on-site assembly. In addition, the evenly arranged bearing frames and the symmetrically distributed support frames form a stable support structure to prevent the equipment from deforming due to heavy load.

[0017] 2. Improved Mixing Tank Structure and Pretreatment Efficiency: Water enters the mixing tank through the first pipeline at the bottom. Inside, a waterproof motor drives the agitator to rotate, which allows the wastewater and flocculant to mix and react fully. This significantly shortens the reaction time compared to traditional static mixing, accelerates the aggregation of colloidal particles into large flocs, and improves pretreatment efficiency. The protective top above the waterproof motor prevents wastewater from splashing in and causing short circuits, thus extending the motor's service life. The mixing tank is connected to the coarse filter chamber through the second pipeline, providing pretreatment for subsequent filtration processes.

[0018] 3. Composite treatment path of coarse and fine filtration chambers: The coarse filtration chamber adopts a gradient filtration design with decreasing pore size, which sequentially intercepts paint residue, metal debris, and colloidal particles, reducing wastewater turbidity and reducing the load on subsequent treatment. The isolation net separates the coarse and fine filtration chambers to prevent flocs from falling off and interfering with the fine filtration process, and guides the water flow to enter the fine filtration chamber evenly. The fine filtration chamber consists of an activated carbon adsorption layer and a reverse osmosis membrane filtration layer: the activated carbon adsorbs organic matter, pigments, and some heavy metal ions, while the reverse osmosis membrane filtration layer intercepts small molecule pollutants, forming a composite treatment path of "physical interception + chemical adsorption + membrane separation", which improves the purification effect and reduces the risk of subsequent reverse osmosis membrane fouling.

[0019] 4. High-efficiency separation and energy-saving design of the reverse osmosis unit: The effluent from the fine filter chamber is sent to the reverse osmosis tank through the third pipeline and the booster pump. The six evenly arranged reverse osmosis membranes in the tank increase the filtration area. The second and first split pipes achieve the separation of concentrate and desalination through a static exchange process, which prolongs the residence time of wastewater on the membrane surface and enhances the removal effect of heavy metal ions. The booster pump can automatically adjust its power according to the pressure, which is more energy-efficient than the traditional constant pressure mode. The removable cover plate facilitates the maintenance and replacement of individual membrane elements, reduces downtime, and improves equipment operation and maintenance efficiency. Attached Figure Description

[0020] Figure 1 This is a side view of the structure of this utility model;

[0021] Figure 2 This is a side view of the cross-sectional structure of this utility model;

[0022] Figure 3 This is a cross-sectional front view of the present invention.

[0023] Figure 4 This is a schematic diagram of the bearing plate and bearing frame structure of this utility model.

[0024] In the diagram: 1. Support plate; 2. Support frame; 3. First pipeline; 4. Mixing tank; 5. Second pipeline; 6. Coarse filter chamber; 7. Fine filter chamber; 8. Third pipeline; 9. Reverse osmosis tank; 10. Support frame; 11. Cover plate; 12. First diversion pipe; 13. Waterproof motor; 14. Agitator; 15. Isolation net; 16. Reverse osmosis membrane; 17. Booster pump; 18. Protective top; 19. Second diversion pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 The present invention provides a device for filtering electrophoretic wastewater based on static exchange, comprising a support plate 1, a support frame 2, a first pipeline 3, a mixing tank 4, a second pipeline 5, a coarse filter chamber 6, a fine filter chamber 7, a third pipeline 8, a reverse osmosis tank 9, a support frame 10, a cover plate 11, a first diversion pipe 12, a waterproof motor 13, a stirring paddle 14, an isolation net 15, a reverse osmosis membrane 16, a booster pump 17, a protective top 18, and a second diversion pipe 19.

[0027] Multiple uniformly arranged support frames 2 are vertically arranged above the support plate 1. The sides of the support frames are pre-set with bolt holes. They are connected to the support frames 10 fixed to the side of the mixing tank 4 by bolts. This structure can flexibly adjust the equipment level according to the scale of wastewater treatment, such as stacking filter units, to achieve multi-level adaptation: it can meet the needs of different treatment volumes, and is easy to disassemble during transportation and quickly assemble on site. The uniformly arranged support frames 2 and the symmetrically distributed support frames 10 form a stable support structure to prevent the equipment from deforming due to heavy load.

[0028] Water enters the bottom of the mixing tank 4 through a pipeline. Inside, a waterproof motor 13 drives the stirring paddle 14 to rotate, which can fully mix and react the wastewater and flocculant, accelerate the aggregation of colloidal particles to form large flocs, and improve the pretreatment efficiency. A protective top 18 is set above the waterproof motor 13 to prevent wastewater from splashing in and causing a short circuit, thus extending the service life of the motor. The mixing tank 4 is connected to the support frame 2 by bolts, which facilitates separate disassembly and maintenance during later maintenance.

[0029] The coarse filter chamber 6 consists of three layers of stainless steel filter screens with gradually decreasing pore size from top to bottom, which sequentially trap paint residue, metal debris, and colloidal particles, reducing wastewater turbidity and lessening the load on subsequent treatment. The isolation net 15 separates the coarse filter chamber 6 from the fine filter chamber 7, preventing flocs from falling off and interfering with the fine filtration process, and guiding the water flow to enter the fine filter chamber 7 evenly. The fine filter chamber 7 consists of an activated carbon adsorption layer and a reverse osmosis membrane 16 filtration layer. Through a composite path of physical interception, chemical adsorption, and membrane separation, it adsorbs organic matter, pigments, heavy metal ions, and traps small molecule pollutants, providing pretreatment for subsequent treatment.

[0030] The effluent from the fine filtration chamber 7 is sent to the reverse osmosis tank 9 via the booster pump 17. Multiple evenly arranged reverse osmosis membranes 16 inside the tank increase the filtration area. The diversion pipe structure achieves the separation of concentrate and desalination through a static exchange process, prolonging the residence time of wastewater on the membrane surface and enhancing the removal effect of heavy metal ions. The booster pump 17 can automatically adjust its power according to the pressure to improve energy efficiency. The removable cover plate 11 design facilitates the maintenance and replacement of individual membrane elements, reducing downtime.

[0031] Working principle: When using an electrophoretic wastewater filtration device based on static exchange, wastewater enters the mixing tank 4 through the first pipeline 3. Under the action of the agitator 14 driven by the waterproof motor 13, it mixes and precipitates with flocculant. It then enters the coarse filter chamber 6 through the second pipeline 5. The coarse filter chamber 6 uses three layers of stainless steel filter screens with gradually decreasing pore size from top to bottom to intercept paint residue, metal debris, and colloidal particles. It is then guided to the fine filter chamber 7 by the isolation net 15. Organic matter, pigments, and some heavy metal ions are adsorbed by the activated carbon adsorption layer. Small molecule pollutants are then intercepted by the reverse osmosis membrane 16 filter layer. After that, it is sent to the reverse osmosis tank 9 by the booster pump 17 through the third pipeline 8. The concentrated water and desalinated water are separated by the static exchange process of six evenly arranged reverse osmosis membranes 16 and the second diversion pipe 19 and the first diversion pipe 12. The equipment is fixed to the support frame 2 of the support plate 1 and the support frame 10 on the side of the mixing tank 4 by bolts. The layers can be flexibly adjusted. The key components adopt a modular design for easy maintenance.

[0032] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A static exchange based electrophoretic wastewater filtration device comprising a carrier plate (1), a mixing tank (4) and a fine filter bin (7); characterized in that: The bearing plate (1) is provided with a bearing mechanism above it, which comprises a bearing frame (2) and a support frame (10), and the bearing plate (1) is bolted with the support frame (10) through the bearing frame (2), realizing the multi-stage adaptive function of the equipment.

2. A static exchange based electrophoretic wastewater filtration device according to claim 1, wherein, The bearing frame (2) is vertically fixed above the bearing plate (1), and there are ten bearing frames (2) evenly arranged, and bolt holes are evenly arranged on the side surface of the bearing frame (2).

3. A static exchange based electrophoretic wastewater filtration device according to claim 1, wherein, The bearing frame (2) is fixed with the support frame (10) through bolts, and the support frame (10) is evenly fixed on the side surface of the mixing tank (4), the first pipeline (3) is communicated with the bottom of the mixing tank (4), the first pipeline (3) is used for water inlet, the waterproof motor (13) is fixedly connected in the mixing tank (4), the protection top (18) is fixedly connected above the waterproof motor (13), and the output shaft of the waterproof motor (13) is fixedly connected with the stirring paddle (14).

4. The electrophoretic wastewater filtration device based on static exchange according to claim 1, characterized in that, The mixing tank (4) is communicated with one end of the second pipeline (5) above it, the other end of the second pipeline (5) is communicated with the coarse filter bin (6), and the coarse filter bin (6) is composed of three layers of stainless steel filter screens with gradually decreasing hole diameters from top to bottom, the isolation net (15) is fixedly connected below the coarse filter bin (6), the fine filter bin (7) is communicated below the isolation net (15), and the fine filter bin (7) is composed of an activated carbon adsorption layer and a reverse osmosis membrane filtration layer.

5. A static exchange based electrophoretic wastewater filtration device according to claim 1, wherein, The fine filter bin (7) is communicated with one end of the third pipeline (8) below it, the other end of the third pipeline (8) is connected with the booster pump (17), and the booster pump (17) is communicated with the reverse osmosis tank (9) above it, the second shunt pipe (19) is fixedly connected in the reverse osmosis tank (9), the reverse osmosis membrane (16) is communicated above the second shunt pipe (19), the first shunt pipe (12) is communicated above the reverse osmosis membrane (16), the first shunt pipe (12) is sleeved with the cover plate (11), and the reverse osmosis membrane (16) is evenly arranged.

Images