Purification device

Abstract

The application provides a purification device. The purification device comprises a first electrode plate, an ionization tank, a cleaning tank, a re-dissolving collection tank and an actuating mechanism. The first electrode plate is at least two and is arranged at intervals. The ionization tank is provided with a second electrode plate, the second electrode plate is at least two and is arranged at intervals, and the ionization tank is used for containing quantum dot mixed solution to be purified. The cleaning tank is used for containing cleaning solution, and the re-dissolving collection tank is used for containing quantum dot re-dissolving solution. The actuating mechanism can drive the first electrode plate to be sequentially inserted into the ionization tank, the cleaning tank and the re-dissolving collection tank. In the state that the first electrode plate is inserted into the ionization tank, the second electrode plate and the first electrode plate are alternately arranged at intervals.

Description

Technical Field

[0001] This application belongs to the field of quantum dot purification technology, and in particular relates to purification devices. Background Technology

[0002] Quantum dots, also known as semiconductor nanocrystals, are a novel type of fluorescent nanomaterial. Their particle size is smaller than the Bohr radius of their constituent materials, and their three-dimensional dimensions are all within the nanometer range (e.g., 1 nm to 100 nm). Because electrons and holes are quantumly confined, the continuous band structure transforms into a discrete energy level structure with molecular properties, enabling them to emit fluorescence upon excitation. Therefore, quantum dots of different sizes can be excited simultaneously using a single wavelength of light source.

[0003] Quantum dots possess unique optoelectronic properties due to their quantum size effect, quantum confinement effect, and surface effect, and have broad application prospects in fields such as light-emitting diodes, solar cells, biological characterization, and photoelectric sensors. However, on the one hand, traditional quantum dot materials contain heavy metal elements such as Cd and Te, which are not only costly but also highly biotoxic; on the other hand, the preparation of traditional quantum dot materials requires strict control of the moisture and oxygen content of the system, which places stringent requirements on the synthesis equipment and processes for quantum dot materials.

[0004] Traditional quantum dot purification methods include ionization, centrifugation, and extraction. Ionization purification is cumbersome, requires harsh conditions, necessitates manual operation, is relatively dangerous, and produces poor purification consistency, leaving room for improvement. Summary of the Invention

[0005] In order to solve or improve at least one of the problems mentioned in the background art, this application provides a purification apparatus.

[0006] This application provides a purification apparatus, which includes:

[0007] First electrode plate, there are at least two first electrode plates arranged at intervals;

[0008] An ionization cell is provided with a second electrode plate, at least two of which are spaced apart, and the ionization cell is used to contain a quantum dot mixture to be purified;

[0009] A cleaning tank, used to hold cleaning fluid;

[0010] A redissolution collection tank, used to hold quantum dot redissol solutions.

[0011] An actuation mechanism is provided that can drive the first electrode plate to be sequentially placed into the ionization tank, the cleaning tank, and the resolution collection tank. When the first electrode plate is inserted into the ionization tank, the second electrode plate and the first electrode plate are alternately and spaced apart.

[0012] In at least one embodiment, the actuation mechanism includes a first linear module and a second linear module. The first linear module is used to drive the first electrode plate to move along the X-axis direction, and the second linear module is used to drive the ionization tank, the cleaning tank, and the resolution collection tank to move along the Z-axis direction. Alternatively, the second linear module is used to drive the first electrode plate to move along the Z-axis direction, wherein the X-axis direction is perpendicular to the Z-axis direction.

[0013] In at least one embodiment, the ionization tank is provided with a removable conductive block, which separates each of the second electrode plates.

[0014] In at least one embodiment, the purification apparatus further includes an electrode mounting plate and a quick-change device, wherein the first electrode plate is mounted on the electrode mounting plate, the electrode mounting plate is detachably mounted on the quick-change device, and the quick-change device is connected to the actuation mechanism.

[0015] In at least one embodiment, the electrode mounting plate has a protrusion, and the quick-change device includes a detachable main body and a clamping part, the main body and the clamping part being able to combine to define a clamping groove or separate and release the clamping groove, wherein the protrusion is confined within the clamping groove when the clamping groove is defined.

[0016] In at least one embodiment, the quick-change device further includes a fastening bolt and a handle. The main body is provided with an internal thread. One end of the fastening bolt passes through the clamping part and is connected to the internal thread. The other end of the fastening bolt is fixedly connected to the handle. By turning the handle, the clamping part can be moved toward the main body to define the clamping groove or the clamping part can be moved away from the main body to release the clamping groove.

[0017] In at least one embodiment, a spring is further provided between the main body and the clamping part in the direction in which the clamping part moves toward the main body.

[0018] In at least one embodiment, the electrode mounting plate is further provided with a first conductive sheet, which is used to connect to one of the positive and negative poles of the power supply, respectively. The ionization tank is provided with a second conductive sheet, which is connected in series with the second electrode plate. When the first electrode plate is placed in the ionization tank, the first conductive sheet can abut against the second conductive sheet, so that the second electrode plate and the first electrode plate are respectively connected to one of the positive and negative poles of the power supply.

[0019] In at least one embodiment, the electrode mounting plate is further provided with a third conductive sheet, and the ionization tank is provided with a fourth conductive sheet. The third conductive sheet and the fourth conductive sheet are configured to emit a confirmation signal after contact to confirm that the first electrode plate has been inserted into the designed position of the ionization tank; and / or, the actuation mechanism is provided with a displacement sensor to confirm whether the first electrode plate has been inserted into the designed position of the ionization tank.

[0020] In at least one embodiment, the remelting collection tank includes a main body having an opening facing upwards. The remelting collection tank includes an insertion area located at the top of the main body. From the upper side to the lower side of the insertion area, the width of the opening of the insertion area gradually decreases in the X-axis direction, which is parallel to the horizontal movement direction of the first electrode plate. The minimum opening width of the insertion area is equal to the opening width of the area of ​​the main body of the remelting collection tank below the insertion area used to accommodate the first electrode plate.

[0021] This application proposes an apparatus for ionizing and purifying quantum dots. By controlling the sequential placement of electrode plates into the ionization tank, washing tank, and reconstitution collection tank, the purification process is automated and the purification consistency is high. Attached Figure Description

[0022] Figure 1A A schematic diagram of the purification apparatus according to an embodiment of this application is shown.

[0023] Figure 1B for Figure 1A The left view.

[0024] Figure 2A A front view of the quick-change device and electrode mounting plate of the purification apparatus according to an embodiment of this application is shown.

[0025] Figure 2B It shows Figure 2A AA sectional view.

[0026] Figure 2C It shows Figure 2A BB cross-sectional view.

[0027] Figure 2D An isometric view of the quick-change device and electrode mounting plate of the purification apparatus according to an embodiment of this application is shown.

[0028] Figure 3 A schematic diagram of the ionization cell of a purification apparatus according to an embodiment of this application is shown.

[0029] Figure 4A A front view of the reconstitution collection tank of a purification apparatus according to an embodiment of this application is shown.

[0030] Figure 4B It shows Figure 4A CC section view.

[0031] Figure 4C It shows Figure 4B A magnified view of a portion of the image.

[0032] Figure 4D An isometric view of the reconstitution collection tank of a purification apparatus according to an embodiment of this application is shown.

[0033] Explanation of reference numerals in the attached figures

[0034] 1. Frame; 11. First linear module; 12. Second linear module;

[0035] 2. Power supply;

[0036] 3 Quick-change device; 31 Main body; 32 Clamping part; 33 Fastening bolt; 34 Handle; 35 Spring; 36 Limit stop; 37 Contact switch; 381 First hole; 382 Second hole; 383 Third hole; 39 Clamping groove;

[0037] 4. Electrode mounting plate; 41. Protrusion; 42. First conductive sheet;

[0038] 5. First electrode plate;

[0039] 6. Ionization tank; 61. Conductive block; 62. Second electrode plate; 63. Second conductive sheet; 64. Ionization tank handle structure;

[0040] 7 cleaning tanks;

[0041] 8. Redissolution collection tank; 81. Main body of redissolution collection tank; 82. Placement area;

[0042] 9 mobile stations. Detailed Implementation

[0043] Exemplary embodiments of this application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are for teaching those skilled in the art how to implement this application only, and are not intended to exhaustively describe all possible methods of this application, nor to limit the scope of this application.

[0044] See Figure 1A , Figure 1B This application provides a purification device, which includes a frame 1, an actuation mechanism, a power supply 2, a quick-change device 3, and an electrode mounting plate 4 (see [reference]). Figures 2A to 2D ), first electrode plate 5, ionization tank 6, cleaning tank 7, resolution collection tank 8, and moving stage 9.

[0045] See also Figure 3 The ionization tank 6 is equipped with a second electrode plate 62. The ionization tank 6 holds the quantum dot mixture to be purified, the washing tank 7 holds the washing solution, and the reconstitution collection tank 8 holds the quantum dot reconstitution solution. An actuation mechanism drives the first electrode plate 5 to be sequentially placed into the ionization tank 6, the washing tank 7, and the reconstitution collection tank 8 to achieve the corresponding ionization, washing, and reconstitution processes, thus realizing the ionization purification of the quantum dots.

[0046] The purification process of quantum dots, especially the ionization process, requires direct current voltage. Manually changing the position of the electrode plate poses not only the risk of electric shock but also the risk of exposure to harmful solvents. This application uses an actuation mechanism to move the first electrode plate, automatically performing the corresponding purification process. Compared to traditional manual operation, this avoids operator exposure to electricity and harmful solvents, thus ensuring higher safety.

[0047] In addition, the mechanical control scheme through the actuation mechanism can easily achieve consistency in electrode plate height, position, and voltage across different purification batches, thus improving the consistency of the quantum dot purification process compared to manual operation.

[0048] For ease of description, this application introduces as follows: Figure 1A The X-axis and Z-axis directions are shown. For example, the actuation mechanism may include a first linear module 11 and a second linear module 12.

[0049] The first linear module 11 is used to drive the quick-change device 3 to move in the X-axis direction. The second linear module 12 is used to drive the moving stage 9 to move in the Z-axis direction. The ionization tank 6, the cleaning tank 7, and the resolution collection tank 8 can be arranged on the moving stage 9 along the X-axis direction.

[0050] Of course, the quick-change device 3 can also be moved simultaneously in the X-axis and Z-axis directions, while the positions of the ionization tank 6, cleaning tank 7 and resolution collection tank 8 are fixed.

[0051] This application does not limit the specific type of actuation mechanism. For example, the first linear module 11 and the second linear module 12 can be ball screw assemblies, synchronous belt assemblies, etc., and the power output device can be a stepper motor, servo motor, etc. For system stability, this application recommends using a servo motor. When using ball screw assemblies and motors as actuation mechanisms, the rotation angle of the output shaft in the motor can be calculated to accurately position and calculate the moving distance of the first linear module 11 and the second linear module 12, ensuring the precise alignment of components such as the first electrode plate 5 and the second electrode plate 62. To make the movement of the components more stable, auxiliary guide rails can also be provided.

[0052] See Figure 2A , Figure 2B , Figure 2C , Figure 2D The quick-change device 3 is used to clamp or release the electrode mounting plate 4, on which the first electrode plate 5 can be mounted. The first electrode plate 5 can be quickly replaced using the quick-change device 3.

[0053] For example, the quick-change device 3 may include a main body 31, a clamping part 32, a fastening bolt 33, a handle 34 and a spring 35.

[0054] See Figure 2C In one embodiment of this application, the main body 31 and the clamping part 32 can be combined (also referred to as clamped in one embodiment of this application) to define a clamping groove 39 (e.g., a dovetail groove), and the clamping groove 39 can be released when the main body 31 and the clamping part 32 are separated. The electrode mounting plate 4 has a protrusion 41 that mates with the clamping groove 39, for example, in a dovetail shape. When the quick-change device 3 is clamped, the electrode mounting plate 4 is confined in the clamping groove 39 by the protrusion 41.

[0055] See Figure 2B The main body 31 may have an internal thread. One end of the fastening bolt 33 can pass through the clamping part 32 and connect to the internal thread of the main body 31. The other end of the fastening bolt 33 is fixedly connected to the handle 34. See also Figure 2C A spring 35 is also provided between the main body 31 and the clamping part 32 in the direction in which the clamping part 32 moves toward the main body 31. By rotating the handle 34, the fixing bolt 33 can be turned toward or away from the main body 31. Furthermore, by adjusting the compression degree of the spring 35 through the handle 34 and the clamping part 32, the gap between the main body 31 and the clamping part 32 can be adjusted, so that the quick-change device 3 forms or releases the clamping groove 39 to clamp or release the electrode mounting plate 4.

[0056] See Figure 2A , Figure 2D A limiting block 36 can be provided at one end of the main body 31 to prevent the electrode mounting plate 4 from sliding. See also Figure 2B A first hole 381 can be provided on the top of the main body 31 to facilitate connection between the main body 31 and, for example, an actuation mechanism. A second hole 382 can be provided on the side of the main body 31 opposite to the handle 34 to facilitate installation of the main body 31 with other structures. See also Figure 2D A third hole 383 can be provided on the side of the main body 31 opposite to the limiting block 36. The cavity forming the third hole 383 can communicate with the electrode mounting plate 4, so that the top surface of the electrode mounting plate exposed at the third hole 383 can be easily removed from the electrode mounting plate 4. For example, when removing the electrode mounting plate 4, the bottom surface of the electrode mounting plate 4 and the top surface exposed from the third hole 383 can be clamped to remove the electrode mounting plate 4.

[0057] Of course, the quick-change device 3 and the electrode mounting plate 4 need to be detachable; this application does not limit the specific form of the mounting. For example, the electrode mounting plate 4 can be connected to the quick-change device 3 by magnetic attraction, snap-fit, or other means.

[0058] Ionization tank 6 is used to hold the quantum dot mixture to be purified, and solid quantum dots can be precipitated through ionization.

[0059] See Figure 1A , Figure 1B The electrode mounting plate 4 is equipped with a first electrode plate 5, which is connected to the positive terminal of the power supply 2 and serves as the anode plate.

[0060] See Figure 3 The ionization tank 6 can be equipped with a conductive block 61 and a second electrode plate 62 separated by the conductive block 61. The second electrode plate 62 can serve as a cathode plate, cooperating with the first electrode plate 5 to achieve the ionization process. The conductive block 61 is detachable, facilitating the adjustment of the position of the second electrode plate 62 in the ionization tank 6, and thus the adjustment of the number of second electrode plates 62 used in the ionization tank 6. The conductive block 61 is conductive, facilitating the connection of all second electrode plates 62 in series to achieve the same potential.

[0061] The ionization tank 6 can also be equipped with a second conductive plate 63, which can be connected in series with the second electrode plate 62. A first conductive plate 42 can also be installed on the electrode mounting plate 4, which can be connected to the negative terminal of the power supply 2. When the first electrode plate 5 is placed in the ionization tank 6, the first conductive plate 42 can contact the second conductive plate 63, so that the second electrode plate 63 and the first electrode plate 5 are respectively connected to the positive and negative terminals of the power supply 2. Of course, the positions of the positive and negative terminals can also be interchanged.

[0062] By controlling the first linear module 11 and the second linear module 12, the first electrode plate 5 is inserted into the ionization tank 6. There can be multiple first electrode plates 5 and multiple equal second electrode plates 62 (e.g., not less than two). These multiple first electrode plates 5 and multiple second electrode plates 62 are alternately arranged and spaced apart (or their positions are staggered). In this state, the positive terminal of the power supply 2 is connected to the first electrode plate 5 (anode plate), the negative terminal of the power supply 2 is connected to the first conductive sheet 42, the first conductive sheet 42 is connected to the second conductive sheet 63, and the second conductive sheet 63 is connected to the second electrode plate 62 (cathode plate). The second electrode plate 62 and the first electrode plate 5 have a quantum dot mixture to be purified, thus forming a circuit between the positive and negative terminals of the power supply 2 and achieving ionization.

[0063] The output voltage of power supply 2 can be initially set to a low voltage to test the data in the circuit and determine if a short circuit is present. If no short circuit is found, the output voltage of power supply 2 can then be set to a high voltage (suitable for the ionization process) to make the ionization process safer. Furthermore, voltage control can be achieved through a control system. Compared to manually setting the voltage magnitude and application time, the control system offers more precise control, ensuring consistent ionization times for different batches of quantum dots and improving uniformity.

[0064] It is understandable that the spacing between the electrode plates is small. Traditional ionization processes require manual control of the electrode plate positions, making insertion and removal difficult and resulting in poor accuracy and consistency. In this embodiment, a braking mechanism is used to achieve precise alignment and movement of multiple electrode plates, facilitating insertion and removal, reducing operational difficulty, increasing efficiency, and improving accuracy and consistency.

[0065] See Figure 1B and Figure 3 An ionization tank handle structure 64 may be provided on the ionization tank 6 to provide an operating position for the operator when installing or removing the ionization tank 6. For example, the ionization tank handle structure 64 may be located at the middle position in the Z-axis direction of the ionization tank 6.

[0066] A third conductive plate can be installed on the electrode mounting plate 4, and a fourth conductive plate can be installed at the ionization tank 6. The third and fourth conductive plates can be configured to emit a confirmation signal upon contact to confirm that the first electrode plate 5 has been inserted into the designed position of the ionization tank 6. Alternatively, the actuation mechanism can be equipped with a displacement sensor to confirm whether the first electrode plate 5 has been inserted into the designed position of the ionization tank 6. Of course, both of the above-mentioned methods for determining the insertion position can be used simultaneously to improve accuracy.

[0067] After ionization, solid quantum dots and other solid impurities are adsorbed on the first electrode plate 5.

[0068] See Figure 1BA contact switch 37 can be installed around the first electrode plate 5. The contact switch 37 generates an electrical signal upon impact. During the upward movement of the ionization tank 6, cleaning tank 7, and resolution collection tank 8, the contact switch 37 can contact the corresponding structures of these tanks to determine their position, thus preventing damage from continuous movement. The contact switch 37 can also be replaced with a laser sensor or similar device.

[0069] This application enables multiple first conductive sheets 5 to be placed into the ionization tank 6 simultaneously, making the degree of ionization of the quantum dot mixture easy to control and ensuring good ionization consistency across multiple batches of the mixture.

[0070] The cleaning tank 7 is used to hold the cleaning solution, which can remove solid impurities other than quantum dots adsorbed on the first electrode plate 5. Of course, there can be multiple cleaning tanks 7.

[0071] See Figure 4A , Figure 4B , Figure 4C , Figure 4D The resolution collection tank 8 is used to hold quantum dot resolution solution (e.g., chloroform), which can resolution the solid quantum dots adsorbed on the first electrode plate 5.

[0072] The remelting collection tank 8 may include a main body 81 having an opening facing upwards. The first electrode plate 5 can be inserted into the remelting collection tank 8 through this opening.

[0073] See Figure 4C , Figure 4D In one embodiment of this application, the remelting collection tank 8 includes an insertion area 82. Exemplarily, the insertion area 82 may be located at the center of the main body 81 in the Y-axis direction and at its top in the Z-axis direction. From the upper side to the lower side (from top to bottom in the Z-axis direction) of the insertion area 82, the width of the opening in the X-axis direction of the insertion area 82 may be set to gradually decrease to reduce scraping when the first electrode plate 5 is inserted into the main body 81 of the remelting collection tank. The X-axis direction is parallel to the horizontal movement direction of the first electrode plate 5, and the minimum opening width of the insertion area 82 is equal to the opening width of the area of ​​the main body 81 of the remelting collection tank below the insertion area 82 used to accommodate the first electrode plate 5.

[0074] It is understandable that, compared to the embodiment where the opening width between the two side walls of the main body 81 of the remelting collection tank is uniform, the embodiment of this application provides a side wall with a gradually changing opening width in the insertion area 82. The opening width at the top of the insertion area 82 can be greater than the opening width of other areas of the main body 81 of the remelting collection tank, and the opening width at the bottom of the insertion area 82 can be the same as the opening width of other areas of the main body 81 of the remelting collection tank. This makes it easier to insert the first electrode plate 5 when the opening is relatively large, and after further insertion, the insertion area 82 and other areas of the main body 81 of the remelting collection tank transition smoothly, thereby reducing the precision requirements for the position during insertion and reducing the scratching problem caused by misalignment.

[0075] In one embodiment of this application, the width of the placement area 82 along the Y-axis direction may be greater than the width of the first electrode plate 5 along the Y-axis direction.

[0076] In one embodiment of this application, position sensors may also be provided on each component to facilitate position coordination.

[0077] The control unit (for example, the control device for the first linear module 11 and the second linear module 12 can be a programmable logic controller (PLC or an all-in-one controller) so that the accuracy of the entire equipment can be controlled within 0.2mm.

[0078] A transparent protective shell, such as transparent glass or transparent plastic, with an opening and closing door can be installed on frame 1. This protective shell prevents operators from coming into contact with electricity and harmful solvents. A sensor can be installed on the opening and closing door to trigger an alarm if the door is accidentally opened while the equipment is running.

[0079] This application enables mechanized operation of the quantum dot purification process, with precise electrode alignment, better ionization consistency of the quantum dot mixture, a safer working environment, and higher production efficiency.

[0080] The above description is the preferred embodiment of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be regarded as embodiments of this application.

Claims

1. A purification apparatus, characterized in that, The purification apparatus for ionizing and purifying quantum dots includes: First electrode plate (5), there are at least two first electrode plates (5) and they are arranged at intervals; An ionization tank (6) is provided with a second electrode plate (62), wherein there are at least two second electrode plates (62) arranged at intervals, and the ionization tank (6) is used to contain the quantum dot mixture to be purified; Cleaning tank (7), which is used to hold cleaning solution; The redissolution collection tank (8) is used to hold the quantum dot redissolution solution. An actuation mechanism is provided, which can drive the first electrode plate (5) to be sequentially placed into the ionization tank (6), the cleaning tank (7), and the resolution collection tank (8). When the first electrode plate (5) is inserted into the ionization tank (6), the second electrode plate (62) and the first electrode plate (5) are alternately and spaced apart. After ionization in the ionization tank (6), the first electrode plate (5) is adsorbed with solid quantum dots. The actuation mechanism can drive the first electrode plate (5) with adsorbed solid quantum dots to move to the resolution collection tank (8). The resolution collection tank (8) is used to resolution the solid quantum dots adsorbed on the first electrode plate (5).

2. The purification apparatus according to claim 1, characterized in that, The actuation mechanism includes a first linear module (11) and a second linear module (12). The first linear module (11) is used to drive the first electrode plate (5) to move along the X-axis direction. The second linear module (12) is used to drive the ionization tank (6), the cleaning tank (7), and the reconstitution collection tank (8) to move along the Z-axis direction; or, the second linear module (12) is used to drive the first electrode plate (5) to move along the Z-axis direction. The X-axis direction is perpendicular to the Z-axis direction.

3. The purification apparatus according to claim 1, characterized in that, The ionization tank (6) is provided with a detachable conductive block (61), which separates each of the second electrode plates (62).

4. The purification apparatus according to claim 1, characterized in that, The purification device further includes an electrode mounting plate (4) and a quick-change device (3), wherein the first electrode plate (5) is mounted on the electrode mounting plate (4), the electrode mounting plate (4) is detachably mounted on the quick-change device (3), and the quick-change device (3) is connected to the actuation mechanism.

5. The purification apparatus according to claim 4, characterized in that, The electrode mounting plate (4) has a protrusion (41), and the quick-change device (3) includes a detachable main body (31) and a clamping part (32). The main body (31) and the clamping part (32) can be combined to define a clamping groove (39) or separated to release the clamping groove (39). When the clamping groove (39) is defined, the electrode mounting plate (4) is limited to the clamping groove (39) by the protrusion (41).

6. The purification apparatus according to claim 5, characterized in that, The quick-change device (3) also includes a fastening bolt (33) and a handle (34). The main body (31) is provided with an internal thread. One end of the fastening bolt (33) passes through the clamping part (32) and is connected to the internal thread. The other end of the fastening bolt (33) is fixedly connected to the handle (34). By turning the handle (34), the clamping part (32) can be moved toward the main body (31) to define the clamping groove (39), or the clamping part (32) can be moved away from the main body (31) to release the clamping groove (39).

7. The purification apparatus according to claim 6, characterized in that, A spring (35) is also provided between the main body (31) and the clamping part (32) in the direction in which the clamping part (32) moves toward the main body part (31).

8. The purification apparatus according to claim 4, characterized in that, The electrode mounting plate (4) is also provided with a first conductive sheet (42), which and the first electrode plate (5) are respectively used to connect to one of the positive and negative poles of the power supply (2). The ionization tank (6) is provided with a second conductive sheet (63), which is connected in series with the second electrode plate (62). When the first electrode plate (5) is placed in the ionization tank (6), the first conductive sheet (42) can contact the second conductive sheet (63), so that the second electrode plate (62) and the first electrode plate (5) are respectively connected to one of the positive and negative poles of the power supply (2).

9. The purification apparatus according to claim 4, characterized in that, The electrode mounting plate (4) is also provided with a third conductive sheet, and the ionization tank (6) is provided with a fourth conductive sheet. The third conductive sheet and the fourth conductive sheet are configured to emit a confirmation signal after contact to confirm that the first electrode plate (5) has been inserted into the designed position of the ionization tank (6). And / or, the actuation mechanism is provided with a displacement sensor to confirm whether the first electrode plate (5) is inserted into the designed position of the ionization tank (6).

10. The purification apparatus according to any one of claims 1 to 9, characterized in that, The redissolution collection tank (8) includes a main body (81) having an opening facing the top. The collection tank (8) includes an insertion area (82) located at the top of the main body (81) of the reconstitution collection tank. From the upper side to the lower side of the insertion area (82), the width of the opening of the insertion area (82) gradually decreases in the X-axis direction. The X-axis direction is parallel to the horizontal movement direction of the first electrode plate (5). The minimum opening width of the insertion area (82) is equal to the opening width of the area of ​​the main body (81) of the reconstitution collection tank below the insertion area (82) used to accommodate the first electrode plate (5).

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