An electrodialysis device for efficient brine treatment

Abstract

The present invention provides an electrodialysis device for efficient concentrated brine treatment, comprising a split device housing, a flip sleeve rotatably mounted at the inner center of the split device housing, and a flip frame fixedly mounted on the surface of the flip sleeve, wherein the split device housing comprises a device lower shell and a device upper shell symmetrically arranged in the upper and lower parts. The present invention can perform ion diffusion, can help prevent pollutants from being deposited on the diaphragm through turbulence, and can work in two zones in a coordinated manner without shutting down the entire machine when a problem occurs inside, so as to solve the problem that the existing equipment cannot promote ion dispersion in the normal operating position, resulting in serious concentration polarization and low ion exchange efficiency. Secondly, dirt and impurities are easily attached to the membrane surface, causing membrane contamination, which greatly shortens the service life of the membrane. In addition, most of the existing equipment is a single processing station. Once a local problem occurs, the entire machine needs to be shut down for repair and maintenance, which will lead to production stagnation.

Description

Technical Field

[0001] The present invention relates to the technical field of electrodialysis, in particular to an electrodialysis device for efficiently treating concentrated brine. Background Art

[0002] Industrial production processes, such as those in the chemical, pharmaceutical, and printing and dyeing industries, generate large quantities of brine. Traditional brine treatment methods, such as evaporation and crystallization, and ion exchange, suffer from high energy consumption, low treatment efficiency, and the tendency to generate secondary pollution. With increasing environmental protection requirements and the increasing scarcity of water resources, the development of efficient, energy-saving, and environmentally friendly brine treatment technologies is urgent. As a new membrane separation technology, electrodialysis shows great potential in the field of brine treatment. It utilizes the selective permeability of ion exchange membranes to anions and cations, and under the action of a DC electric field, it causes ions in the solution to migrate in a directional manner, thereby achieving the separation and concentration of brine.

[0003] In the field of brine treatment, traditional electrodialysis equipment has numerous shortcomings. First, existing equipment cannot promote ion dispersion in the normal operating position, resulting in severe concentration polarization and low ion exchange efficiency. Second, dirt and impurities easily adhere to the membrane surface, causing membrane fouling and significantly shortening the membrane's service life. Furthermore, existing equipment often operates at a single processing station. Once a local problem occurs, the entire machine must be shut down for repair and maintenance, which can lead to production stagnation and financial losses for the company. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an electrodialysis device for the efficient treatment of concentrated brine, which is capable of ion diffusion, can prevent pollutants from being deposited on the membrane through turbulence, and can work in two zones in a coordinated manner without shutting down the entire machine when problems occur, so as to solve the problem that the existing equipment cannot promote ion dispersion in the normal operating position, resulting in serious concentration polarization and low ion exchange efficiency. Secondly, dirt and impurities are easily attached to the membrane surface, causing membrane pollution and greatly shortening the service life of the membrane. In addition, most of the existing equipment is a single processing station. Once a local problem occurs, the entire machine needs to be shut down for repair and maintenance, which will lead to production stagnation.

[0005] To achieve the above-mentioned object, the present invention is implemented through the following technical solution: an electrodialysis device for efficiently treating concentrated brine, comprising a split device housing, a flip sleeve rotatably mounted at the center of the split device housing, and a flip frame fixedly mounted on the surface of the flip sleeve, wherein the split device housing comprises a device lower housing and a device upper housing symmetrically arranged in the upper and lower parts, and a partition is symmetrically installed front and back between each two adjacent flip frames;

[0006] It also includes an upper shell lifting mechanism, which is arranged on both sides of the lower shell of the equipment and is used to lift the upper shell of the equipment to replace and repair the internal components of the split equipment shell;

[0007] A flip drive assembly is provided on one side of the lower shell of the device and is used to drive the flip sleeve to rotate and change the electrodialysis station;

[0008] An ion diffusion mechanism is provided on the partition plate and is used to diffuse ions between each two adjacent groups of flip frames to promote ion migration;

[0009] A dual-zone water flow control mechanism is provided on the partition and is used to control the water flow of the partition, so that the interior of the split device housing is divided into an upper dialysis treatment space and a lower dialysis treatment space or an overall treatment space;

[0010] The dual-mechanism control assembly is arranged at the top of one side of the lower shell of the equipment and is used to drive and control the ion diffusion mechanism and the dual-zone water flow control mechanism.

[0011] Furthermore, the flip frame is coaxially fixed to the flip sleeve, and six groups of flip frames are provided, and are distributed equidistantly from left to right along the axial position of the flip sleeve. The six groups of flip frames are symmetrically installed with a positive electrode plate, a second anion permeable membrane, a second cation permeable membrane, a first anion permeable membrane, a first cation permeable membrane and a negative electrode plate from left to right, and a guide groove is opened on the top of the flip sleeve between the two groups of separators;

[0012] A first pure water chamber is formed between the second anion permeable membrane and the second cation permeable membrane, a second pure water chamber is formed between the first anion permeable membrane and the first cation permeable membrane, a first concentrated water chamber is formed between the positive electrode plate and the second anion permeable membrane, a second concentrated water chamber is formed between the second cation permeable membrane and the first anion permeable membrane, and a third concentrated water chamber is formed between the first cation permeable membrane and the negative electrode plate.

[0013] Furthermore, the upper shell lifting mechanism includes a mounting base, a first cylinder, a mounting block and a drive mounting plate. The mounting base is fixedly mounted on the bottom of both sides of the lower shell of the device. The first cylinder is fixedly mounted on the front and rear sides of the top of the mounting base. The mounting block is fixedly mounted on the output end of the first cylinder and is fixedly mounted on the side close to the upper shell of the device. The drive mounting plate is fixedly mounted on the top of the first cylinder and is fixedly mounted on the side close to the lower shell of the device.

[0014] Furthermore, the flipping drive assembly includes a reduction motor, a drive shaft, gear 1 and a gear ring, the reduction motor is fixedly mounted on the front side of the top of the drive mounting plate, the drive shaft is fixedly mounted on the output end of the reduction motor, the gear 1 is fixedly mounted on the end of the drive shaft away from the reduction motor, the gear ring is fixedly mounted on the end of the flipping sleeve surface close to the reduction motor, and the gear ring is meshed with gear 1.

[0015] Furthermore, the dual-mechanism control assembly includes a second cylinder, a pushing block, an annular limit ring block, a pushing rod, a driving block, a diamond-shaped extrusion plate, a limit frame, a reset frame, a limit rod, a spring and a limit slide, the second cylinder is fixedly mounted on the rear side of the top of the driving mounting plate, the pushing block is fixedly mounted on the output end of the second cylinder, the pushing rod is rotatably mounted inside the flip sleeve, one end of the pushing rod close to the pushing block is fixedly mounted on the annular limit ring block, the annular limit ring block and the pushing block axially rotate and limit cooperate, the driving block is fixedly mounted on the top of the flip sleeve and is located at the center of the guide groove, the driving block slides with the inner wall of the guide groove, the bottom of the diamond-shaped extrusion plate is fixedly mounted on the top of the driving block, the limit frame is fixedly mounted on the top of the partition, the reset frame is provided with two groups, and are symmetrically mounted on one side of the limit frame near the flip sleeve, the limit rod is fixedly mounted on the bottom of the reset frame, the spring sleeve is arranged on the surface of the limit rod, and one end is fixedly mounted on the reset frame, and the limit slide is fixedly mounted on both sides of the top and bottom of the inner wall of the limit frame.

[0016] Furthermore, the ion diffusion mechanism includes an ion diffusion drive oblique block, a tooth plate, a second gear, a stirring shaft and an ion diffusion plate, the ion diffusion drive oblique block is slidably installed on the left side inside the limit frame, the tooth plate is fixedly installed on the side of the ion diffusion drive oblique block close to the flip sleeve, the stirring shaft is rotatably installed on the side of the partition away from the flip sleeve, the second gear is fixedly installed at the center of the stirring shaft surface and is located at the top of the partition, the ion diffusion plate is fixedly installed at the top and bottom of the stirring shaft surface, the second gear is meshed with the tooth plate, the ion diffusion drive oblique block is slidably matched with the diamond extrusion plate, the top and bottom of the partition are fixedly installed with a limiting ring located on the surface of the stirring shaft, the limiting ring is rotatably matched with the stirring shaft, and the surface of the stirring shaft is fixedly installed with a retaining ring for limiting the axial movement of the stirring shaft, and the retaining ring is located at the bottom of the limiting ring.

[0017] Furthermore, the dual-zone water flow control mechanism includes a sealing drive bevel block, a movable plate, a sealing plate and a movable groove. The sealing drive bevel block is slidably installed on the right side inside the limit frame, the movable plate is fixedly installed on a pair of ends of the sealing drive bevel block close to the flip sleeve, the sealing plate is fixedly installed on the bottom of the movable plate, and the movable groove is opened inside the partition and slides with the sealing plate.

[0018] Furthermore, a rectangular sealing gasket is clamped on the lower shell of the device and is sealed with the upper shell of the device. The surface of the flip frame is provided with a double-layer sealing ring. The surface of the sealing plate is provided with a U-shaped sealing strip and is sealed with the movable groove. The end of the spring away from the reset frame is in contact with the ion diffusion drive bevel and the sealing drive bevel. The limit rod is in internal sliding cooperation with the ion diffusion drive bevel and the sealing drive bevel. The top and bottom of the ion diffusion drive bevel and the sealing drive bevel are provided with limit slides that are slidably cooperated with the limit slide. The sealing drive bevel and the ion diffusion drive bevel are fixedly installed with side limit strips on the side close to the inner wall of the limit frame. The inner wall of the limit frame is provided with a slide groove that is slidably cooperated with the side limit strip.

[0019] Beneficial effects of the present invention: The present invention sets an ion diffusion mechanism. Under the drive of the dual-mechanism control component, the ion diffusion plate increases the turbulence of the water flow, effectively promotes ion diffusion, reduces concentration polarization, and significantly improves the ion exchange efficiency and desalination effect. The split structure and convenient maintenance design facilitate timely cleaning and maintenance of the membrane, extending the service life of the membrane. The split equipment shell and flip shaft sleeve design realize independent operation and flexible switching of the upper and lower working areas. The dual-zone water flow control mechanism can also realize dual-zone collaborative work to improve the processing capacity. In addition, the upper shell lifting mechanism and the flip drive assembly facilitate the replacement and maintenance of internal components. When local problems occur, there is no need to shut down the entire machine, reducing the losses caused by production stagnation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

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

[0022] Figure 2 For the present invention Figure 1 A side structural diagram of

[0023] Figure 3 This is a schematic diagram of the maintenance state of the present invention;

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the lower shell of the device of the present invention;

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of the local explosion three-dimensional structure;

[0027] Figure 7It is a schematic diagram of the three-dimensional structure of the flip frame of the present invention;

[0028] Figure 8 For the present invention Figure 7 Schematic diagram of the local three-dimensional structure;

[0029] Figure 9 This is a schematic diagram of the exploded three-dimensional structure of the partition of the present invention;

[0030] Figure 10 For the present invention Figure 9 The enlarged structural diagram at B in the middle;

[0031] Figure 11 This is a schematic diagram of the exploded three-dimensional structure of the limiting frame of the present invention;

[0032] Figure 12 This is a schematic diagram of a half-cut exploded three-dimensional structure of the partition of the present invention;

[0033] Figure 13 It is a schematic diagram of the three-dimensional structure of the pushing block of the present invention.

[0034] In the figure: 1. Equipment lower shell; 101. Rectangular sealing gasket; 2. Equipment upper shell; 11. Mounting base plate; 12. First cylinder; 121. Mounting block; 13. Drive mounting plate; 131. Reducer motor; 1311. Drive shaft; 1312. Gear 1; 1313. Gear ring; 132. Second cylinder; 1321. Push block; 1322. Annular limit ring block; 1323. Push rod; 1324. Drive block; 1325. Diamond extrusion plate; 3. First raw water inlet pipe; 4. Three-way solenoid valve; 41. Raw water inlet pipe; 43. Second raw water inlet pipe; 5. First concentrated water extraction pipe; 51. Pure water extraction pipe; 53. Second concentrated water extraction; 54. Second pure water extraction pipe; 55. Stop valve; 6. Flip Shaft sleeve; 61, guide groove; 7, partition; 7110, U-shaped sealing strip; 701, limiting collar; 71, moving groove; 711, sealing plate; 712, moving plate; 713, sealing drive inclined block; 72, ion diffusion drive inclined block; 721, tooth plate; 722, second gear; 723, stirring shaft; 724, ion diffusion plate; 73, limiting frame; 731, reset frame; 732, limiting rod; 733, spring; 7301, limiting slide; 7302, limiting slide; 74, side limiting strip; 8, flip frame; 81, positive electrode plate; 82, negative electrode plate; 83, first cation permeable membrane; 84, first anion permeable membrane; 85, second cation permeable membrane; 86, second anion permeable membrane. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] See also Figure 1 and Figure 7 , Figure 1 It is a structural schematic diagram of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the flip frame of the present invention.

[0037] An electrodialysis device for efficiently treating concentrated brine, comprising a split device housing, a flip sleeve 6 rotatably mounted at the center of the split device housing, and a flip frame 8 fixedly mounted on the surface of the flip sleeve 6. The split device housing comprises a device lower shell 1 and a device upper shell 2 symmetrically arranged in an upper and lower direction. The flip frame 8 is coaxially fixed to the flip sleeve 6, and six groups of flip frames 8 are provided. The flip frames 8 are equidistantly distributed from left to right along the axial position of the flip sleeve 6. The six groups of flip frames 8 are symmetrically mounted from left to right on a positive electrode plate 81, a second anion permeable membrane 86, a second cation permeable membrane 85, a first anion permeable membrane 84, a first cation permeable membrane 83, and a negative electrode plate 82. A partition 7 is symmetrically mounted front to back between each two adjacent groups of flip frames 8. A guide groove 61 is provided on the top of the flip sleeve 6 between the two groups of partitions 7.

[0038] The first pure water chamber is formed between the second anion permeable membrane 86 and the second cation permeable membrane 85, the second pure water chamber is formed between the first anion permeable membrane 84 and the first cation permeable membrane 83, the first concentrated water chamber is formed between the positive electrode plate 81 and the second anion permeable membrane 86, the second concentrated water chamber is formed between the second cation permeable membrane 85 and the first anion permeable membrane 84, and the third concentrated water chamber is formed between the first cation permeable membrane 83 and the negative electrode plate 82.

[0039] See also Figures 1 to 13 As shown, Figure 1 It is a structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 A side structural diagram of Figure 3 It is a maintenance status schematic diagram of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at A in the middle; Figure 5 This is a schematic diagram of the internal three-dimensional structure of the lower shell of the device of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the local explosion three-dimensional structure; Figure 7 It is a schematic diagram of the three-dimensional structure of the flip frame of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the local three-dimensional structure;

[0040] Figure 9 This is a schematic diagram of the exploded three-dimensional structure of the partition of the present invention; Figure 10 For the present invention Figure 9The enlarged structural diagram at B in the middle; Figure 11 This is a schematic diagram of the exploded three-dimensional structure of the limiting frame of the present invention; Figure 12 This is a schematic diagram of a half-cut exploded three-dimensional structure of the partition of the present invention; Figure 13 It is a schematic diagram of the three-dimensional structure of the pushing block of the present invention.

[0041] It also includes a raw water input component, which is arranged on the front side of the lower shell 1 of the equipment and is used to input raw water into the split equipment shell; the raw water input component includes a first raw water input pipe 3, a three-way solenoid valve 4, a raw water inlet pipe 41 and a second raw water input pipe 43. The top of the first raw water input pipe 3 is connected to the bottom of the lower shell 1 of the equipment through five groups of connecting pipes distributed at equal distances laterally. The three-way solenoid valve 4 is arranged on the front side of the lower shell 1 of the equipment. The three-way solenoid valve 4 is connected to the first raw water input pipe 3 through a pipeline. The raw water inlet pipe 41 is connected to one end of the three-way solenoid valve 4. The second raw water input pipe 43 is connected to the front side of the upper shell 2 of the equipment. The three-way solenoid valve 4 is connected to the second raw water input pipe 43 through a pipeline.

[0042] The raw water inlet pipe 41 is connected to external raw water and is delivered to 31 and the first raw water inlet pipe 3 through the three-way solenoid valve 4. The raw water is then delivered to the interior of the split device housing through 31 or the first raw water inlet pipe 3. The delivery direction of the raw water inlet pipe 41 is controlled by the three-way solenoid valve 4. For example, when electrodialysis is performed at the bottom of the split device housing, the first raw water inlet pipe 3 is opened and the second raw water inlet pipe 43 is closed. In this case, raw water can only enter the interior of the device lower housing 1. When electrodialysis is performed at the top of the split device housing, the first raw water inlet pipe 3 is closed and the second raw water inlet pipe 43 is opened. In this case, raw water can only enter the interior of the device upper housing 2. The partition 7 divides the upper and lower working areas into two working areas. When the working pressure is high, both the upper and lower spaces are activated, and the first raw water inlet pipe 3 and the second raw water inlet pipe 43 are opened. Raw water can enter the interior of the device lower housing 1 and the upper housing 2 simultaneously, performing dual-zone operation. The dual-zone water flow control mechanism on the partition 7 allows water to flow between the upper and lower working areas.

[0043] The concentrated water and pure water discharge assembly is arranged on the lower shell 1 and the upper shell 2 of the equipment, and is used to extract the pure water and concentrated water in the split equipment shell; the concentrated water and pure water discharge assembly includes a first concentrated water extraction pipe 5, a pure water extraction pipe 51, a second concentrated water extraction 53, a second pure water extraction pipe 54 and a stop valve 55. The first concentrated water extraction pipe 5 is connected to the first concentrated water chamber, the second concentrated water chamber and the third concentrated water chamber inside the lower shell 1 of the equipment through a pipeline, the pure water extraction pipe 51 is connected to the first pure water chamber and the second pure water chamber inside the lower shell 1 of the equipment through a pipeline, the second concentrated water extraction 53 passes through the first concentrated water chamber, the second concentrated water chamber and the third concentrated water chamber inside the upper shell 2 of the equipment from top to bottom through a pipeline, and the first concentrated water extraction pipe 53 passes through the first concentrated water chamber, the second concentrated water chamber and the third concentrated water chamber inside the upper shell 2 of the equipment from top to bottom through a pipeline. The two pure water extraction pipes 54 are connected to the first pure water chamber and the second pure water chamber inside the equipment upper shell 2 through pipelines. The first concentrated water extraction pipe 5, the pure water extraction pipe 51, the second concentrated water extraction 53 and the second pure water extraction pipe 54 are connected to the end close to the split equipment shell with a stop valve 55, and the stop valve 55 is used to independently control the drainage working status of the first concentrated water chamber, the second concentrated water chamber, the third concentrated water chamber, the first pure water chamber and the second pure water chamber. The pure water extraction pipe 51 and the second pure water extraction pipe 54 are connected to the external pure water pool at one end away from the equipment lower shell 1 and the equipment upper shell 2, and the second concentrated water extraction 53 and the first concentrated water extraction pipe 5 are connected to the external concentrated water pool at one end away from the equipment lower shell 1 and the equipment upper shell 2.

[0044] When the external pure water pool and the concentrated water pool circulate and pump water through their internal water pumps, the pure water pool extracts the pure water in the first pure water chamber and the second pure water chamber through the second pure water extraction pipe 54 and the pure water extraction pipe 51. When the concentrated water pool circulates and pumps water through its internal water pump, the concentrated water in the first concentrated water chamber, the second concentrated water chamber and the third concentrated water chamber is extracted through the second concentrated water extraction 53 and the first concentrated water extraction pipe 5.

[0045] The upper shell lifting mechanism is arranged on both sides of the lower shell 1 of the equipment, and is used to lift the upper shell 2 of the equipment to replace and repair the internal components of the split equipment shell; the upper shell lifting mechanism includes a mounting base 11, a first cylinder 12, a mounting block 121 and a drive mounting plate 13, the mounting base 11 is fixedly mounted on the bottom of both sides of the lower shell 1 of the equipment, the first cylinder 12 is fixedly mounted on the front and rear sides of the top of the mounting base 11, the mounting block 121 is fixedly mounted on the output end of the first cylinder 12, and is fixedly mounted on the side close to the upper shell 2 of the equipment, the drive mounting plate 13 is fixedly mounted on the top of the first cylinder 12, and is fixedly mounted on the side close to the lower shell 1 of the equipment.

[0046] The mounting base 11 cooperates with the driving mounting plate 13 to stably mount the first cylinder 12 so that the first cylinder 12 will not tilt or shake after installation. At the same time, after starting the first cylinder 12, the mounting block 121 can be driven to move up and down through the output end, and then the upper shell 2 of the device fixed thereto can be driven to be lifted upward through the mounting block 121. When the upper shell 2 of the device is opened, it is convenient for mechanics to repair and maintain the equipment. When the bottom diaphragm of the split device housing needs to be maintained, the flip drive assembly is used to drive the flip sleeve 6 before starting, and then the flip sleeve 6 is used to flip multiple groups of bottom dialysis diaphragms to the top, which facilitates maintenance while allowing the original top area devices to flip to the bottom to continue working.

[0047] The flip drive assembly is arranged on one side of the lower shell 1 of the equipment and is used to drive the flip sleeve 6 to rotate and change the electrodialysis station; the flip drive assembly includes a reduction motor 131, a drive shaft 1311, a gear 1312 and a gear ring 1313. The reduction motor 131 is fixedly mounted on the front side of the top of the drive mounting plate 13, the drive shaft 1311 is fixedly mounted on the output end of the reduction motor 131, the gear 1312 is fixedly mounted on the end of the drive shaft 1311 away from the reduction motor 131, and the gear ring 1313 is fixedly mounted on the end of the surface of the flip sleeve 6 close to the reduction motor 131, and the gear ring 1313 is engaged with the gear 1312.

[0048] After the reduction motor 131 is started, it can drive the drive shaft 1311 to rotate, and then drive the gear 1312 to rotate through the drive shaft 1311, and then drive the gear ring 1313 engaged with it to rotate through the gear 1312, and then drive the flip sleeve 6 to rotate through the gear ring 1313, and then drive the partition 7 and flip frame 8 fixed to it to flip through the flip sleeve 6 to realize the switching of the dialysis operation area.

[0049] The dual-mechanism control component is arranged at the top of one side of the lower shell 1 of the equipment, and is used to drive and control the ion diffusion mechanism and the dual-zone water flow control mechanism; the dual-mechanism control component includes a second cylinder 132, a pushing block 1321, an annular limiting ring block 1322, a pushing rod 1323, a driving block 1324, a diamond extrusion plate 1325, a limiting frame 73, a reset frame 731, a limiting rod 732, a spring 733 and a limiting slide 7301, the second cylinder 132 is fixedly mounted on the rear side of the top of the driving mounting plate 13, the pushing block 1321 is fixedly mounted on the output end of the second cylinder 132, the pushing rod 1323 is rotatably mounted inside the flip sleeve 6, and the end of the pushing rod 1323 close to the pushing block 1321 is connected to the annular limiting ring block 1322 Fixed installation, the annular limit ring block 1322 is matched with the push block 1321 for axial rotation limiting, the driving block 1324 is fixedly installed on the top of the flip sleeve 6 and is located at the center of the guide groove 61, the driving block 1324 is slidably matched with the inner wall of the guide groove 61, the bottom of the diamond extrusion plate 1325 is fixedly installed with the top of the driving block 1324, the limit frame 73 is fixedly installed on the top of the partition 7, the reset frame 731 is set in two groups, and is symmetrically installed on the side of the limit frame 73 close to the flip sleeve 6, the limit rod 732 is fixedly installed on the bottom of the reset frame 731, the spring 733 is sleeved on the surface of the limit rod 732, and one end is fixedly installed with the reset frame 731, and the limit slide 7301 is fixedly installed on both sides of the top and bottom of the inner wall of the limit frame 73.

[0050] After the second cylinder 132 is started, it can drive the pushing block 1321 to move left and right through the output end, and due to the axial rotation limit cooperation between the pushing block 1321 and the annular limiting ring block 1322, the annular limiting ring block 1322 can be pushed left and right by the pushing block 1321 when following the rotation of the pushing rod 1323. When the annular limiting ring block 1322 is pushed by the pushing block 1321, it can drive the pushing rod 1323 to move left and right, and then drive the driving block 1324 to move left and right through the pushing rod 1323, and then drive the diamond extrusion plate 1325 to move left and right through the driving block 1324 to drive the ion diffusion mechanism and the dual-zone water control mechanism to work.

[0051] The ion diffusion mechanism is provided on the partition 7 and is used to diffuse the ions between each two adjacent groups of flip frames 8 to promote the migration of the ions therein; the ion diffusion mechanism includes an ion diffusion driving inclined block 72, a tooth plate 721, a second gear 722, a stirring shaft 723 and an ion diffusion plate 724. The ion diffusion driving inclined block 72 is slidably mounted on the left side of the inner limit frame 73, the tooth plate 721 is fixedly mounted on the side of the ion diffusion driving inclined block 72 close to the flip shaft sleeve 6, the stirring shaft 723 is rotatably mounted on the side of the inner partition 7 away from the flip shaft sleeve 6, and the second gear 722 is fixedly mounted. At the center of the surface of the stirring shaft 723 and at the top of the partition 7, the ion diffusion plate 724 is fixedly installed on the top and bottom of the surface of the stirring shaft 723, the second gear 722 is engaged with the tooth plate 721, the ion diffusion drive bevel 72 is slidably matched with the diamond extrusion plate 1325, and the top and bottom of the partition 7 are fixedly installed with a limiting ring 701 located on the surface of the stirring shaft 723. The limiting ring 701 rotates with the stirring shaft 723, and a retaining ring for limiting the axial movement of the stirring shaft 723 is fixedly installed on the surface of the stirring shaft 723. The retaining ring is located at the bottom of the limiting ring 701.

[0052] The ion diffusion driving inclined block 72 can be squeezed by the diamond-shaped squeezing plate 1325 driven to the left to move to the side away from the flip sleeve 6. At this time, the spring 733 is squeezed, so that its elastic force is compressed, and then the tooth plate 721 fixed to the ion diffusion driving inclined block 72 can be driven to move to the side away from the flip sleeve 6, thereby driving the second gear 722 engaged with it to rotate. The second gear 722 drives the stirring shaft 723 fixed thereto to rotate, and the stirring shaft 723 drives the ion diffusion sheet 724 to twist, thereby increasing the water content through the ion diffusion sheet 724. The turbulence of the water flow is reduced, the ion diffusion between the two sets of flip frames 8 is promoted, and the concentration polarization is reduced. When the diamond extrusion plate 1325 moves to the right, the ion diffusion driving inclined block 72 loses the tightness of the diamond extrusion plate 1325, and the elastic force of the spring 733 at the bottom of the reset frame 731 is released to bounce the ion diffusion driving inclined block 72 toward the side close to the flip shaft sleeve 6, so that the ion diffusion driving inclined block 72 drives the tooth plate 721 fixed thereto to move toward the side close to the flip shaft sleeve 6, and drives the second gear 722 meshed with it to reverse again, thereby enhancing the turbulence of the water flow.

[0053] The dual-zone water flow control mechanism is arranged on the partition 7 and is used to control the water flow function of the partition 7, so that the interior of the split equipment shell is divided into an upper dialysis treatment space and a lower dialysis treatment space or an overall treatment space; the dual-zone water flow control mechanism includes a sealing drive bevel 713, a movable plate 712, a sealing plate 711 and a movable groove 71, the sealing drive bevel 713 is slidably installed on the right side of the limit frame 73, the movable plate 712 is fixedly installed on a pair of ends of the sealing drive bevel 713 close to the flip sleeve 6, the sealing plate 711 is fixedly installed on the bottom of the movable plate 712, and the movable groove 71 is opened inside the partition 7 and slides with the sealing plate 711.

[0054] The sealing drive bevel 713 can be driven to the right by the diamond extrusion plate 1325 to drive the sealing drive bevel 713 to move to the side away from the flip sleeve 6 through the diamond corner, thereby driving the movable plate 712 fixed to the sealing drive bevel 713 to move to the side away from the flip sleeve 6, and then the movable plate 712 drives the sealing plate 711 to move to the side away from the flip sleeve 6, thereby staggering the sealing plate 711 and the movable groove 71, so that a gap appears inside the partition 7, thereby facilitating the communication between the upper and lower areas of the split device shell, and when the upper and lower areas of the split device shell are not required When the parts are partially interconnected, the diamond extrusion plate 1325 is moved to the left and reset to the center. Then, since the sealing drive bevel 713 loses the tight support of the diamond extrusion plate 1325, the elastic force of the spring 733 at the bottom of the reset frame 731 is released to bounce the sealing drive bevel 713 to the side close to the flip sleeve 6 and reset it. At this time, the sealing drive bevel 713 drives the movable plate 712 and the sealing plate 711 to move to the side close to the flip sleeve 6, so that the sealing plate 711 is completely fitted with the inner wall of the movable groove 71 for sealing, thereby separating the upper and lower parts of the interior of the split equipment shell again.

[0055] A rectangular sealing gasket 101 is clamped on the lower shell 1 of the device and is sealed with the upper shell 2 of the device. The surface of the flip frame 8 is covered with a double-layer sealing ring. The surface of the sealing plate 711 is covered with a U-shaped sealing strip 7110 and is sealed with the movable groove 71. The end of the spring 733 away from the reset frame 731 is in contact with the ion diffusion drive bevel 72 and the sealing drive bevel 713. The limiting rod 732 is internally slidably matched with the ion diffusion drive bevel 72 and the sealing drive bevel 713. The top and bottom of the ion diffusion drive bevel 72 and the sealing drive bevel 713 are both provided with limiting slide grooves 7302 that are slidably matched with the limiting slide bar 7301. The sealing drive bevel 713 and the ion diffusion drive bevel 72 are fixedly installed with a side limiting strip 74 on the side close to the inner wall of the limit frame 73. The inner wall of the limit frame 73 is provided with a slide groove that is slidably matched with the side limiting strip 74.

[0056] The rectangular sealing gasket 101 can make the sealing of the device lower shell 1 and the device upper shell 2 stronger after being combined, preventing internal liquid leakage. At the same time, the double-layer sealing ring can ensure that the cavities between the flip frames 8 are well isolated, so that the pure water and concentrated water between them will not merge, and the U-shaped sealing strip 7110 can be used to make the sealing plate 711 and the movable groove 71 seal and match to achieve good isolation effect, ensuring that the upper and lower parts of the split device shell will not interfere with each other. The limiting rod 732 can guide and limit the sliding process of the ion diffusion drive bevel 72 and the sealing drive bevel 713. At the same time, the limiting slide groove 7302 cooperates with the limiting slide bar 7301 to make the ion diffusion drive bevel 72 and the sealing drive bevel 713 slide back and forth stably, and the side limiting strip 74 can also cooperate with the limiting slide bar 7301 to ensure that the ion diffusion drive bevel 72 and the sealing drive bevel 713 will not move up and down when sliding back and forth, thereby ensuring movement stability.

[0057] Working Principle: 1. Raw Water Input: Raw water enters the three-way solenoid valve 4 through the raw water inlet pipe 41. The three-way solenoid valve 4 controls the flow of raw water according to the requirements of the electrodialysis operation. When electrodialysis is performed at the bottom of the split-type device housing, the first raw water inlet pipe 3 is opened and the second raw water inlet pipe 43 is closed, allowing raw water to enter the interior of the device's lower housing 1. When electrodialysis is performed at the top of the split-type device housing, the first raw water inlet pipe 3 is closed and the second raw water inlet pipe 43 is opened, allowing raw water to enter the interior of the device's upper housing 2. When operating at high pressures and requiring dual-zone operation, both the first raw water inlet pipe 3 and the second raw water inlet pipe 43 are opened, allowing raw water to enter both the lower housing 1 and the interior of the upper housing 2 simultaneously.

[0058] 2. Electrodialysis Process: Under the action of a DC electric field, with potential difference as the driving force, the selective permeability of the ion exchange membrane is utilized to cause anions and cations to migrate toward the positive and negative electrodes, respectively. Cations in the dilute water chamber migrate toward the negative electrode, permeate the cation membrane, and are intercepted by the anion membrane in the concentrate chamber; while anions in the water migrate toward the positive electrode, pass through the anion membrane, and are intercepted by the cation membrane in the concentrate chamber, thus achieving concentration, desalination, refinement, and purification of the solution. In this device, a first pure water chamber is formed between the second anion permeable membrane 86 and the second cation permeable membrane 85, a second pure water chamber is formed between the first anion permeable membrane 84 and the first cation permeable membrane 83, a first concentrated water chamber is formed between the positive electrode plate 81 and the second anion permeable membrane 86, a second concentrated water chamber is formed between the second cation permeable membrane 85 and the first anion permeable membrane 84, and a third concentrated water chamber is formed between the first cation permeable membrane 83 and the negative electrode plate 82. After the raw water enters the device, under the action of the electric field, ions migrate and separate between the chambers, the ions in the pure water chamber gradually decrease to become pure water, and the ion concentration in the concentrated water chamber continues to increase to become concentrated water.

[0059] 3. Ion Diffusion Promotion: After the second cylinder 132 in the dual-mechanism control assembly is activated, it drives the push block 1321 to move left and right through its output port, thereby driving the annular limit ring 1322, push rod 1323, drive block 1324, and diamond-shaped extrusion plate 1325 to move left and right. When the diamond-shaped extrusion plate 1325 moves left, it compresses the ion diffusion drive ramp 72 away from the inverting sleeve 6, driving the tooth plate 721 to move, causing the meshed second gear 722 to rotate. This in turn drives the agitator shaft 723 and ion diffusion plate 724 to twist, increasing water turbulence, promoting ion diffusion between the two sets of inverting frames 8, and reducing concentration polarization. When the diamond-shaped extrusion plate 1325 moves right, the ion diffusion drive ramp 72 returns to its original position under the elastic force of the spring 733, driving the tooth plate 721 to move in the opposite direction, again driving the second gear 722 to reverse, further increasing water turbulence.

[0060] 4. Dual-zone water flow control: When the upper and lower areas of the split equipment shell need to communicate with each other, the diamond extrusion plate 1325 in the dual-mechanism control assembly moves to the right, and drives the sealing drive bevel 713 to move to the side away from the flip sleeve 6 through the diamond corner, driving the movable plate 712 and the sealing plate 711 to move, so that the sealing plate 711 is staggered with the movable groove 71, and a gap appears inside the partition 7, which facilitates the communication between the upper and lower areas; when the upper and lower parts do not need to communicate with each other, the diamond extrusion plate 1325 moves to the left and resets, and the sealing drive bevel 713 is reset under the elastic force of the spring 733, driving the movable plate 712 and the sealing plate 711 to move to the side close to the flip sleeve 6, so that the sealing plate 711 is completely fitted with the inner wall of the movable groove 71 for sealing, so that the upper and lower parts inside the split equipment shell are separated again.

[0061] 5. Discharge of concentrated water and pure water: When the external pure water pool and the concentrated water pool circulate water through their internal water pumps, the pure water pool extracts the pure water in the first pure water chamber and the second pure water chamber through the second pure water extraction pipe 54 and the pure water extraction pipe 51, and the concentrated water pool extracts the concentrated water inside the first concentrated water chamber, the second concentrated water chamber and the third concentrated water chamber through the second concentrated water extraction 53 and the first concentrated water extraction pipe 5.

[0062] VI. Equipment Maintenance and Workstation Switching: When equipment maintenance is required, the first cylinder 12 in the upper shell lifting mechanism is activated, driving the mounting block 121 up and down through the output end, thereby driving the upper shell 2 of the equipment upward, facilitating maintenance personnel to access the interior of the equipment. When the bottom diaphragm of the split device housing needs to be maintained, the reduction motor 131 in the flip drive assembly can first drive the flip sleeve 6 to rotate, flipping the multiple bottom dialysis diaphragm groups to the top, facilitating maintenance while allowing the original top area components to flip to the bottom to continue working.

[0063] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0064] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electrodialysis device for high-efficiency concentrated brine treatment, comprising a split device housing, a flip sleeve (6) rotatably mounted at the center of the split device housing, and a flip frame (8) fixedly mounted on the surface of the flip sleeve (6), characterized in that: The split device housing comprises a device lower housing (1) and a device upper housing (2) symmetrically arranged in the upper and lower parts, and a partition (7) is symmetrically installed front and back between each two sets of adjacent flip frames (8); It also includes an upper shell lifting mechanism, which is arranged on both sides of the equipment lower shell (1) and is used to lift the equipment upper shell (2) to replace and repair the internal components of the split equipment shell; A flip drive assembly is provided on one side of the lower shell (1) of the device and is used to drive the flip sleeve (6) to rotate and change the electrodialysis station; An ion diffusion mechanism is provided on the partition (7) and is used to diffuse ions between each two adjacent groups of flip frames (8) to promote the migration of ions therein; A dual-zone water flow control mechanism is provided on the partition (7) and is used to control the water flow of the partition (7), so that the interior of the split device housing is divided into an upper dialysis treatment space and a lower dialysis treatment space or an overall treatment space; The dual-mechanism control component is arranged on the top of one side of the lower shell (1) of the device and is used to drive and control the ion diffusion mechanism and the dual-zone water flow control mechanism.

2. The electrodialysis equipment for efficient concentrated brine treatment according to claim 1, characterized in that: The flip frame (8) is coaxially fixed to the flip sleeve (6), and six groups of the flip frames (8) are provided and are distributed equidistantly from left to right along the axial position of the flip sleeve (6). The six groups of the flip frames (8) are symmetrically installed with a positive electrode plate (81), a second anion permeable membrane (86), a second cation permeable membrane (85), a first anion permeable membrane (84), a first cation permeable membrane (83) and a negative electrode plate (82) from left to right. A guide groove (61) located between two groups of separators (7) is opened on the top of the flip sleeve (6); A first pure water chamber is formed between the second anion permeable membrane (86) and the second cation permeable membrane (85), a second pure water chamber is formed between the first anion permeable membrane (84) and the first cation permeable membrane (83), a first concentrated water chamber is formed between the positive electrode plate (81) and the second anion permeable membrane (86), a second concentrated water chamber is formed between the second cation permeable membrane (85) and the first anion permeable membrane (84), and a third concentrated water chamber is formed between the first cation permeable membrane (83) and the negative electrode plate (82).

3. The electrodialysis equipment for efficient concentrated brine treatment according to claim 2, characterized in that: The upper shell lifting mechanism comprises a mounting base (11), a first cylinder (12), a mounting block (121) and a drive mounting plate (13), wherein the mounting base (11) is fixedly mounted on the bottom of both sides of the lower shell (1) of the device, the first cylinder (12) is fixedly mounted on the front and rear sides of the top of the mounting base (11), the mounting block (121) is fixedly mounted on the output end of the first cylinder (12), and is fixedly mounted on the device upper shell (2) on the side close to the device upper shell (2), the drive mounting plate (13) is fixedly mounted on the top of the first cylinder (12), and is fixedly mounted on the device lower shell (1) on the side close to the device lower shell (1).

4. The electrodialysis equipment for efficient concentrated brine treatment according to claim 3, characterized in that: The flip drive assembly comprises a reduction motor (131), a drive shaft (1311), a gear 1 (1312) and a gear ring (1313), wherein the reduction motor (131) is fixedly mounted on the front side of the top of the drive mounting plate (13), the drive shaft (1311) is fixedly mounted on the output end of the reduction motor (131), the gear 1 (1312) is fixedly mounted on an end of the drive shaft (1311) away from the reduction motor (131), and the gear ring (1313) is fixedly mounted on an end of the surface of the flip shaft sleeve (6) close to the reduction motor (131), and the gear ring (1313) is meshed with the gear 1 (1312).

5. The electrodialysis equipment for efficient concentrated brine treatment according to claim 2, characterized in that: The dual-mechanism control assembly comprises a second cylinder (132), a pushing block (1321), an annular limiting ring block (1322), a pushing rod (1323), a driving block (1324), a diamond-shaped extrusion plate (1325), a limiting frame (73), a reset frame (731), a limiting rod (732), a spring (733) and a limiting slide (7301), wherein the second cylinder (132) is fixedly mounted on the rear side of the top of the driving mounting plate (13), the pushing block (1321) is fixedly mounted on the output end of the second cylinder (132), the pushing rod (1323) is rotatably mounted inside the flip sleeve (6), and one end of the pushing rod (1323) close to the pushing block (1321) is fixedly mounted on the annular limiting ring block (1322), and the annular limiting ring block (1322) and the pushing rod (1323) are fixedly mounted. The movable block (1321) is axially rotated and limited, the driving block (1324) is located at the center of the guide groove (61), the driving block (1324) is slidably matched with the inner wall of the guide groove (61), the bottom of the diamond extrusion plate (1325) is fixedly installed with the top of the driving block (1324), the limiting frame (73) is fixedly installed on the top of the partition (7), the reset frame (731) is provided with two groups, and is symmetrically installed on one side of the limiting frame (73) close to the flip shaft sleeve (6), the limiting rod (732) is fixedly installed at the bottom of the reset frame (731), the spring (733) is sleeved on the surface of the limiting rod (732), and one end is fixedly installed with the reset frame (731), and the limiting slide (7301) is fixedly installed on both sides of the top and bottom of the inner wall of the limiting frame (73).

6. The electrodialysis equipment for efficient concentrated brine treatment according to claim 5, characterized in that: The ion diffusion mechanism comprises an ion diffusion driving inclined block (72), a tooth plate (721), a second gear (722), a stirring shaft (723) and an ion diffusion plate (724), wherein the ion diffusion driving inclined block (72) is slidably mounted on the left side of the interior of the limit frame (73), the tooth plate (721) is fixedly mounted on the side of the ion diffusion driving inclined block (72) close to the flip shaft sleeve (6), the stirring shaft (723) is rotatably mounted on the side of the interior of the partition (7) away from the flip shaft sleeve (6), the second gear (722) is fixedly mounted at the center of the surface of the stirring shaft (723) and located at the top of the partition (7), and the stirring shaft (723) is rotatably mounted on the side of the interior of the partition (7) away from the flip shaft sleeve (6). The ion diffusion plate (724) is fixedly mounted on the top and bottom of the surface of the stirring shaft (723); the second gear (722) is meshed with the tooth plate (721); the ion diffusion driving bevel block (72) is slidably matched with the diamond extrusion plate (1325); the top and bottom of the partition (7) are fixedly mounted with a limiting collar (701) located on the surface of the stirring shaft (723); the limiting collar (701) is rotationally matched with the stirring shaft (723); a retaining ring for limiting the axial movement of the stirring shaft (723) is fixedly mounted on the surface of the stirring shaft (723); the retaining ring is located at the bottom of the limiting collar (701).

7. The electrodialysis equipment for efficient concentrated brine treatment according to claim 6, characterized in that: The dual-zone water flow control mechanism comprises a sealing drive inclined block (713), a movable plate (712), a sealing plate (711) and a movable groove (71), wherein the sealing drive inclined block (713) is slidably mounted on the right side of the interior of the limit frame (73), the movable plate (712) is fixedly mounted on a pair of ends of the sealing drive inclined block (713) close to the flip shaft sleeve (6), the sealing plate (711) is fixedly mounted on the bottom of the movable plate (712), and the movable groove (71) is opened inside the partition (7) and slidably cooperates with the sealing plate (711).

8. The electrodialysis equipment for efficient concentrated brine treatment according to claim 7, characterized in that: The lower shell (1) of the device is clamped with a rectangular sealing gasket (101) that is sealed with the upper shell (2) of the device. The surface of the flip frame (8) is provided with a double-layer sealing ring. The surface of the sealing plate (711) is provided with a U-shaped sealing strip (7110) that is sealed with the movable groove (71). The end of the spring (733) away from the reset frame (731) is in contact with the ion diffusion drive inclined block (72) and the sealing drive inclined block (713). The limiting rod (732) is in contact with the ion diffusion drive inclined block (72). ) and the internal sliding fit of the sealing drive bevel (713), the top and bottom of the ion diffusion drive bevel (72) and the sealing drive bevel (713) are both provided with a limiting slide groove (7302) that slides with the limiting slide bar (7301), and the sealing drive bevel (713) and the ion diffusion drive bevel (72) are fixedly installed with a side limiting strip (74) on the side close to the inner wall of the limiting frame (73), and the inner wall of the limiting frame (73) is provided with a slide groove that slides with the side limiting strip (74).

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