Iron phosphate precipitation electrodialysis device

Abstract

The utility model belongs to the technical field of iron phosphate precipitation, and particularly relates to an iron phosphate precipitation electrodialysis device which comprises a shell, an electrodialysis mechanism is arranged in the shell and comprises a cathode plate, an anode plate, an anionic membrane and a cationic membrane, and the cathode plate and the anode plate are respectively mounted on two sides in the shell. The anion membranes and the cation membranes are arranged in the shell, a partition plate mechanism is arranged in the shell and comprises an insertion plate, a first anion membrane layer, a second anion membrane layer, a first cation membrane layer and a second cation membrane layer, the insertion plate is arranged in the shell, the first anion membrane layer and the first cation membrane layer are arranged on the two sides of the insertion plate respectively, and the second anion membrane layer and the second cation membrane layer are arranged on the two sides of the insertion plate respectively. The second female membrane layer is arranged on the outer side of the first female membrane layer, and the second male membrane layer is arranged on the outer side of the first male membrane layer, so that the technical problems in the background art that the electrodialysis efficiency is low, the structure of a partition plate is limited, and the connection mode with an external water pipe is inconvenient to disassemble and maintain are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron phosphate precipitation, and in particular relates to an iron phosphate precipitation electrodialysis device. Background Art

[0002] In the prior art, the electrodialysis efficiency of the existing ferric phosphate precipitation electrodialysis device is low during use, which is mainly due to certain limitations in the design and structure of the device. For example, the anion membrane and the cation membrane in the device may have problems such as low ion passage rate and poor selectivity, resulting in unsatisfactory ion separation effect. In addition, the design of the partition mechanism and the connection mechanism of the device may also affect the electrodialysis efficiency, which needs further improvement.

[0003] In the existing ferric phosphate precipitation electrodialysis device, the partition adopts a plate-frame integrated design, which can improve the stability and durability of the device to a certain extent. However, due to the structural limitations of the partition, the liquid flow channel can only be set on the surface of the electrodialysis liquid distribution channel, which may result in a shorter liquid flow path and insufficient ion migration distance, thereby affecting the electrodialysis efficiency.

[0004] The existing connection method between the iron phosphate precipitation electrodialysis device and the external water pipe is a fixed connection, which ensures the stability and safety of the connection to a certain extent. However, in practical applications, if replacement or maintenance is required, the fixed connection method will be inconvenient, which may increase the difficulty of maintenance and affect the normal operation of the device.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide an electrodialysis device for ferric phosphate precipitation, so as to solve the problems in the background technology of low electrodialysis efficiency, structural limitations of partitions, and inconvenient disassembly and maintenance of the connection mode with external water pipes.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A ferric phosphate precipitation electrodialysis device comprises a shell, an electrodialysis mechanism is arranged in the shell, the electrodialysis mechanism comprises a cathode plate, an anode plate, an anion membrane and a cation membrane, the cathode plate and the anode plate are respectively installed on both sides of the shell, the anion membrane and the cation membrane are provided in multiple groups and installed in the shell, a partition mechanism is arranged in the shell, the partition mechanism comprises an insert plate, a first anion membrane layer, a second anion membrane layer, a first cation membrane layer and a second cation membrane layer, the insert plate is installed in the shell, the first anion membrane layer and the first cation membrane layer are respectively arranged on both sides of the insert plate, the second anion membrane layer is arranged on the outside of the first anion membrane layer, and the second cation membrane layer is arranged on the outside of the first cation membrane layer.

[0009] Preferably, a first concentrated water flow channel is provided on the first anion membrane layer, and a second concentrated water flow channel is provided on the second anion membrane layer, thereby effectively achieving separation and concentration of ions and improving the efficiency of electrodialysis.

[0010] Preferably, a first fresh water flow channel is provided on the first cation membrane layer, and a second fresh water flow channel is provided on the second cation membrane layer, thereby effectively realizing the separation and concentration of ions and improving the efficiency of electrodialysis.

[0011] Preferably, the separator mechanism is provided in multiple groups and is respectively arranged between the anion membrane and the cation membrane, thereby improving the efficiency of the electrodialysis.

[0012] Preferably, a water pipe is provided on the bottom surface of the shell, and a pneumatic butterfly valve is provided between the shell and the water pipe, thereby improving the flexibility and controllability of the system.

[0013] Preferably, a connecting mechanism is provided at the bottom end of the water pipe, and the connecting mechanism includes a connecting pipe, a convex strip, a sleeve, a pressure plate and a hinge. The connecting pipe is arranged at the bottom end of the water pipe, the convex strip is arranged on the outer wall of the connecting pipe, the sleeve is arranged on the outer wall of the convex strip, the pressure plate is provided in two groups and is arranged on the outer wall of the sleeve, and the hinge is installed on the two groups of pressure plates to facilitate the extrusion and fixation of the outer wall of the water pipe.

[0014] Preferably, a fastening mechanism is provided on the pressure plate, and the fastening mechanism includes a hinged seat, a latch, a clamp and a slot, the hinged seat is installed on the pressure plate, the latch is installed on the hinged seat, the clamp is installed on the latch, and the slot is provided on the clamp, so as to facilitate the connection and fixation of the water pipe.

[0015] Preferably, the clamp is provided with a plug hole, and the hinge seat is provided with a plug piece, which improves the stability of the fastening and ensures the safe operation of the system.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) The electrodialysis mechanism of the utility model realizes the directional migration of ions under the action of a DC electric field by using an anion membrane and a cation membrane, thereby realizing the separation and concentration of ions in a solution. The design of this mechanism allows only specific types of ions to pass through the corresponding membrane, thereby effectively separating the ions in the solution and achieving the purpose of purification.

[0018] (2) The partition mechanism of the utility model includes multiple groups of plug plates and membrane layers, which effectively separate the electrodialysis device into multiple concentrated water chambers and fresh water chambers, increase the path for ion migration, and improve the separation efficiency. At the same time, the partition mechanism also provides more surface area, so that more ions can migrate on the membrane, thereby improving the efficiency of electrodialysis.

[0019] (3) The design of the connection mechanism of the utility model makes it easy to connect the water pipe to the external pipe, and the connection can be fixed by a pressure plate to ensure the stability and safety of the connection. In addition, the design of the connection mechanism also makes replacement or maintenance more convenient and quick.

[0020] (4) The fastening mechanism of the utility model includes a hinge seat, a latch, a clamp and a slot, and the water pipe can be fixed by the cooperation of the latch and the slot, thereby ensuring the stability and safety of the connection. In addition, the design of the fastening mechanism also makes replacement or maintenance more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the water pipe and the pneumatic butterfly valve of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the partition mechanism of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the connection mechanism of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0026] Figure 6 It is a cross-sectional view of the internal structure of the sleeve of the utility model.

[0027] Description of main reference numerals:

[0028] 1. Shell; 2. Cathode plate; 3. Anode plate; 4. Anion membrane; 5. Cationic membrane; 6. Insert plate; 7. First anion membrane layer; 8. Second anion membrane layer; 9. First cation membrane layer; 10. Second cation membrane layer; 11. First concentrated water flow channel; 12. Second concentrated water flow channel; 13. First fresh water flow channel; 14. Second fresh water flow channel; 15. Water pipe; 16. Pneumatic butterfly valve; 17. Connecting pipe; 18. Raised strip; 19. Sleeve; 20. Press plate; 21. Hinge; 22. Articulated seat; 23. Latch; 24. Clamp; 25. Slot; 26. Socket; 27. Insert. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] See attached Figure 1-6 , a ferric phosphate precipitation electrodialysis device, comprising:

[0032] A housing 1 is provided with an electrodialysis mechanism, the electrodialysis mechanism comprising a cathode plate 2, an anode plate 3, an anion membrane 4 and a cation membrane 5, the cathode plate 2 and the anode plate 3 are respectively mounted on both sides of the housing 1, and the anion membrane 4 and the cation membrane 5 are both provided with multiple groups and mounted in the housing 1;

[0033] A partition mechanism is arranged in the outer shell 1, and the partition mechanism includes an insert plate 6, a first negative membrane layer 7, a second negative membrane layer 8, a first positive membrane layer 9 and a second positive membrane layer 10. The insert plate 6 is installed in the outer shell 1, the first negative membrane layer 7 and the first positive membrane layer 9 are respectively arranged on both sides of the insert plate 6, the second negative membrane layer 8 is arranged on the outside of the first negative membrane layer 7, and the second positive membrane layer 10 is arranged on the outside of the first positive membrane layer 9.

[0034] In this embodiment, a first concentrated water flow channel 11 is opened on the first anion membrane layer 7, and a second concentrated water flow channel 12 is opened on the second anion membrane layer 8, which helps to separate the concentrated water flow channel from the fresh water flow channel during the electrodialysis process, effectively realizes the separation and concentration of ions, and improves the efficiency of electrodialysis; a first fresh water flow channel 13 is opened on the first cation membrane layer 9, and a second fresh water flow channel 14 is opened on the second cation membrane layer 10, which helps to separate the concentrated water flow channel from the fresh water flow channel during the electrodialysis process, effectively realizes the separation and concentration of ions, and improves the efficiency of electrodialysis.

[0035] The partition mechanism is provided with multiple groups and is respectively arranged between the anion membrane 4 and the cation membrane 5, which effectively increases the path of ion migration and improves the separation efficiency. At the same time, the partition mechanism also provides more surface area, so that more ions can migrate on the membrane, improving the efficiency of electrodialysis.

[0036] A water pipe 15 is provided on the bottom surface of the shell 1, and a pneumatic butterfly valve 16 is provided between the shell 1 and the water pipe 15. Through the control of the pneumatic butterfly valve 16, the flow and pressure of the water pipe 15 can be adjusted, thereby improving the flexibility and controllability of the system.

[0037] A connecting mechanism is provided at the bottom end of the water pipe 15, and the connecting mechanism includes a connecting pipe 17, a convex strip 18, a sleeve 19, a pressing plate 20 and a hinge 21. The connecting pipe is arranged at the bottom end of the water pipe 15, the convex strip 18 is arranged on the outer wall of the connecting pipe 17, the sleeve 19 is arranged on the outer wall of the convex strip 18, two groups of pressing plates 20 are arranged and arranged on the outer wall of the sleeve 19, and the hinge 21 is installed on the two groups of pressing plates 20, and the external water pipe is inserted between the connecting pipe 17 and the sleeve 19, and the outer wall of the water pipe is squeezed and fixed by the two groups of pressing plates 20.

[0038] The pressing plate 20 is provided with a fastening mechanism, which includes an articulated seat 22, a latch 23, a clamp 24 and a slot 25. The articulated seat 22 is mounted on the pressing plate 20, the latch 23 is mounted on the articulated seat 22, the clamp 24 is mounted on the latch 23, and the slot 25 is arranged on the clamp 24. The two groups of pressing plates 20 are pressed against the outer wall of the water pipe, the insert 27 is inserted into the jack 26 arranged on the clamp 24, and then the slot 25 arranged on the clamp 24 is clamped on the latch 23, and the two groups of pressing plates 20 are pressed relative to each other, so that the water pipe can be connected and fixed; the clamp 24 is provided with a jack 26, and the articulated seat 22 is provided with a insert 27, which facilitates the assembly and disassembly of the fastening mechanism, and also improves the stability of the fastening, thereby ensuring the safe operation of the system.

[0039] In this embodiment, the solution is injected into the housing 1, and the anion membrane 4 and the cation membrane 5 are alternately arranged between the positive anode plate 3 and the cathode plate 2. Under the action of the DC electric field, the potential difference is used as the driving force, and the ions in the solution migrate in a directional manner. The cation membrane 5 only allows cations to pass through and intercept anions, and the anion membrane 4 only allows anions to pass through and intercept cations, thereby dividing the partition into a fresh water chamber and a concentrated water chamber, so that the ions are separated and concentrated, and the solution is purified. The first concentrated water flow channel 11 and the second concentrated water flow channel 12 are respectively arranged above the first anion membrane layer 7 and the second anion membrane layer 8, and the first fresh water flow channel 13 and the second fresh water flow channel 14 are respectively arranged above the first cation membrane layer 9 and the second cation membrane layer 10, so as to facilitate the opening of the liquid flow channel between the two connected anion membrane layers and the cation membrane layer. When the water supply pipe 15 is connected to the external water pipe, the external water pipe is inserted between the connecting pipe 17 and the sleeve 19, and the outer wall of the water pipe is squeezed and fixed by two sets of pressing plates 20.

[0040] See also Figure 5 The pressing plate 20 is provided with a fastening mechanism, which includes an articulated seat 22, a latch 23, a clamp 24 and a slot 25. The articulated seat 22 is mounted on the pressing plate 20, the latch 23 is mounted on the articulated seat 22, the clamp 24 is mounted on the latch 23, and the slot 25 is arranged on the clamp 24; a plug hole 26 is provided on the clamp 24, and a plug piece 27 is provided on the articulated seat 22. When it is necessary to fix the connection of the external water pipe, the two groups of pressing plates 20 are pressed against the outer wall of the water pipe, the plug piece 27 is inserted into the plug hole 26 provided on the clamp 24, and then the slot 25 provided on the clamp 24 is clamped on the latch 23, and the two groups of pressing plates 20 are pressed relative to each other, so that the water pipe can be connected and fixed.

[0041] When in use, the solution is injected into the shell 1, and the anion membrane 4 and the cation membrane 5 are alternately arranged between the positive anode plate 3 and the cathode plate 2. Under the action of the DC electric field, the potential difference is used as the driving force, and the ions in the solution migrate in a directional manner. The cation membrane 5 only allows cations to pass through and intercept anions, and the anion membrane 4 only allows anions to pass through and intercept cations, thereby dividing the partition into a fresh water chamber and a concentrated water chamber, so that the ions are separated and concentrated, and the solution is purified. The first concentrated water flow channel 11 and the second concentrated water flow channel 12 are respectively arranged above the first anion membrane layer 7 and the second anion membrane layer 8, and the first fresh water flow channel 13 and the second fresh water flow channel 14 are respectively arranged above the first cation membrane layer 9 and the second cation membrane layer 10, so as to facilitate the opening of the liquid flow channel between the two connected anion membrane layers and the cation membrane layer. When the water pipe 15 is connected to the external water pipe, the external water pipe is inserted between the connecting pipe 17 and the sleeve 19, and the outer wall of the water pipe is squeezed and fixed by two sets of pressing plates 20.

[0042] When it is necessary to fix the connection of the external water pipe, the two groups of pressure plates 20 are pressed against the outer wall of the water pipe, the insert 27 is inserted into the insertion hole 26 set on the clamp 24, and then the clamping groove 25 set on the clamp 24 is clamped on the pin 23, and the two groups of pressure plates 20 are pressed relative to each other, so that the water pipe can be connected and fixed.

[0043] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. An electrodialysis device for ferric phosphate precipitation, characterized in that: include: A housing, wherein an electrodialysis mechanism is disposed in the housing; The electrodialysis mechanism comprises a cathode plate, an anode plate, an anion membrane and a cation membrane, wherein the cathode plate and the anode plate are respectively mounted on both sides of the housing, and the anion membrane and the cation membrane are both provided with multiple groups and mounted in the housing; A partition mechanism is provided in the shell; The partition mechanism includes an insert plate, a first negative membrane layer, a second negative membrane layer, a first positive membrane layer and a second positive membrane layer. The insert plate is installed in an outer shell. The first negative membrane layer and the first positive membrane layer are respectively arranged on both sides of the insert plate, the second negative membrane layer is arranged on the outside of the first negative membrane layer, and the second positive membrane layer is arranged on the outside of the first positive membrane layer.

2. The iron phosphate precipitation electrodialysis device according to claim 1, characterized in that: The first cathode membrane layer is provided with a first concentrated water flow channel, and the second cathode membrane layer is provided with a second concentrated water flow channel.

3. The iron phosphate precipitation electrodialysis device according to claim 1, characterized in that: A first fresh water flow channel is opened on the first cation membrane layer, and a second fresh water flow channel is opened on the second cation membrane layer.

4. The iron phosphate precipitation electrodialysis device according to claim 1, characterized in that: The partition mechanism is provided in multiple groups and is respectively arranged between the anion membrane and the cation membrane.

5. The iron phosphate precipitation electrodialysis device according to claim 1, characterized in that: A water pipe is arranged on the bottom surface of the shell, and a pneumatic butterfly valve is arranged between the shell and the water pipe.

6. The iron phosphate precipitation electrodialysis device according to claim 5, characterized in that: A connecting mechanism is provided at the bottom end of the water pipe, and the connecting mechanism includes a connecting pipe, a convex strip, a sleeve, a pressure plate and a hinge. The connecting pipe is arranged at the bottom end of the water pipe, the convex strip is arranged on the outer wall of the connecting pipe, the sleeve is arranged on the outer wall of the convex strip, the pressure plate is provided in two groups and is arranged on the outer wall of the sleeve, and the hinge is installed on the two groups of pressure plates.

7. The iron phosphate precipitation electrodialysis device according to claim 6, characterized in that: The pressure plate is provided with a fastening mechanism, which includes an articulated seat, a latch, a clamp and a slot. The articulated seat is mounted on the pressure plate, the latch is mounted on the articulated seat, the clamp is mounted on the latch, and the slot is provided on the clamp.

8. The iron phosphate precipitation electrodialysis device according to claim 7, characterized in that: The clamp is provided with an insertion hole, and the hinge seat is provided with an insertion sheet.

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