Ternary precursor washing wastewater filtering device

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a ternary precursor washing wastewater filtering device which comprises a supporting seat, a supporting cylinder is fixedly mounted in the supporting seat, and an equipment cylinder is fixedly mounted at the upper end of the supporting cylinder through an arranged supporting column; a centrifugal filtering mechanism used for carrying out classified screening on metal precipitates in the ternary precursor washing wastewater through the centrifugal filtering effect is arranged in the supporting cylinder, and a driving mechanism used for providing power for the centrifugal filtering mechanism is arranged in the supporting cylinder and the equipment cylinder jointly. Rapid centrifugal filtration of metal precipitates in the ternary precursor washing wastewater is completed by adopting integrated operation of centrifugal filtration, graded screening and anti-blocking, and meanwhile, effective graded screening is performed on the internal metal precipitates through the centrifugal filtration effect, so that the metal precipitates with different sizes are graded; meanwhile, in the centrifugal filtration process, scrubbing and knocking are utilized, so that metal sediment adhesion substances on the filter screen are effectively removed, and the filter screen is kept clean.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a ternary precursor washing wastewater filtering device. Background Art

[0002] Ternary precursors are the core raw materials for preparing cathode materials for ternary lithium batteries. During their production, a washing process is required to remove impurities (such as sodium ions⁺, sulfate ions, and chloride ions) remaining on the surface of the precursor particles to ensure the electrochemical performance of the final battery material. This washing process generates a large amount of ternary precursor washing wastewater, which contains target metal ions such as nickel, cobalt, and manganese, as well as impurity metal ions such as calcium, magnesium, and iron. Direct discharge of this ternary precursor washing wastewater, which contains a large number of metal ions, would be harmful to human health and the environment. Therefore, the heavy metal content of the ternary precursor washing wastewater needs to be treated. The most common treatment method is to first add an appropriate amount of alkaline powder. After sufficient stirring, the nickel, cobalt, manganese, calcium, magnesium, and iron ions in the ternary precursor washing wastewater will precipitate as metal precipitates. Centrifugal filtration is then performed to separate the metal precipitates from the ternary precursor washing wastewater. Because these metal precipitates have high recovery value, the separated metal precipitates are finally recovered and extracted for reuse.

[0003] At present, there are the following disadvantages in the rapid centrifugal filtration treatment of metal precipitates in ternary precursor washing wastewater: 1. During the centrifugal filtration separation operation of the ternary precursor washing wastewater, the metal precipitates in the ternary precursor washing wastewater will continue to adhere to the filter screen, and as the metal precipitates accumulate, the filter screen channel will gradually be blocked, resulting in reduced filtration efficiency, increased wastewater treatment time, and the metal precipitates adhering to the filter screen may be released in subsequent links, causing secondary pollution; 2. The existing separation and rapid treatment operation directly separates all large and small metal precipitates in the ternary precursor washing wastewater, and does not classify metal precipitates of different sizes. The metal content in large metal precipitates is high, and the metal content in small metal precipitates is low. The recovery and extraction methods of metal precipitates with different metal contents are also different. If all large and small metal precipitates use the same recovery and extraction process, the efficiency of recovery, extraction and reuse will also be reduced if the metal precipitates are not classified during centrifugal filtration treatment. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a ternary precursor washing wastewater filtration device, which is achieved by the following specific technical means:

[0005] A ternary precursor washing wastewater filtration device includes a support base, a support cylinder is fixedly installed in the support base, an equipment cylinder is fixedly installed on the upper end of the support cylinder through a set support, a centrifugal filtration mechanism is provided in the support cylinder for performing graded screening of metal precipitates in the ternary precursor washing wastewater through centrifugal filtration, and a driving mechanism for providing power to the centrifugal filtration mechanism is commonly provided in the support cylinder and the equipment cylinder.

[0006] The driving mechanism includes a main body provided in the support tube and the equipment tube, a driving part provided on the main body, and a switching part provided on the driving part for switching between centrifugal screening and discharge of metal precipitates of the centrifugal filter mechanism.

[0007] The centrifugal filtering mechanism comprises a centrifugal part arranged on the main body, a discharge part for transporting the metal precipitates filtered by the centrifugal part upward is arranged in the support cylinder, and a matching part for matching with the main body is arranged on the discharge part.

[0008] An anti-blocking mechanism is provided in the support cylinder for adaptively preventing the centrifugal part from blocking; the anti-blocking mechanism includes a knocking part provided on the main body and used to cooperate with the centrifugal part to elastically knock the centrifugal part, and a brushing part is provided on the knocking part for brushing the centrifugal part.

[0009] As a preferred technical solution of the present invention, the main body includes a first bracket, a second bracket, a first shaft cylinder, a bearing circular plate and a second shaft cylinder. The first bracket is fixedly installed at the center of the inner part of the equipment cylinder, and the second bracket corresponding to the first bracket is fixedly installed at the lower end of the inner part of the support cylinder. The first shaft cylinder is installed between the second bracket and the first bracket through a bearing. The outer ring wall of the first shaft cylinder is fixedly sleeved with a bearing circular plate located above the second bracket. The bearing circular plate is connected to the second bracket through a bearing. The upper end of the first bracket is installed with a second shaft cylinder coaxial with the first shaft cylinder through a bearing.

[0010] As a preferred technical solution of the present invention, the driving part includes a first motor and a third shaft cylinder. The first bracket and the second bracket are jointly installed with a third shaft cylinder located in the first shaft cylinder through a bearing. The third shaft cylinder, the first shaft cylinder and the second shaft cylinder are coaxial. The upper end of the third shaft cylinder passes through the second shaft cylinder. The first motor is fixedly installed in the equipment cylinder, and the output end of the first motor is connected to the third shaft cylinder through a transmission gear set.

[0011] As a preferred technical solution of the present invention, the switching part includes an electric push rod, a first socket, a first spring plug rod, a second socket, a second spring plug rod and a spindle-shaped block. The electric push rod is fixedly installed on the upper end surface of the third shaft cylinder. The inner ring wall of the second shaft cylinder is provided with a plurality of first matching sockets in a circular array. The third shaft cylinder is provided with a first socket corresponding to the first matching socket one by one. The first spring plug rod is slidably installed in the first socket. The inner ring wall of the first shaft cylinder is provided with a plurality of second matching sockets in a circular array. The third shaft cylinder is provided with a second socket corresponding to the second matching socket one by one. The second spring plug rod is slidably installed in the second socket. The telescopic end of the electric push rod is fixedly installed with a spindle-shaped block located in the third shaft cylinder.

[0012] As a preferred technical solution of the present invention, the centrifugal part includes a vertical cylinder and sieve holes. The upper end surface of the supporting circular plate is fixedly installed with several vertical cylinders with increasing radius from the inside to the outside. The several vertical cylinders are coaxial with the first shaft cylinder. The outer ring wall of the vertical cylinder is evenly penetrated by several sieve holes in an array. Screens are provided in the sieve holes, and the mesh size of the screen on the vertical cylinder increases from the inside to the outside.

[0013] As an optimal technical solution of the present invention, the discharging part includes a guide column, a limiting slide, a screw rod, a slider and a discharging ring plate, the lower end surface of the first bracket is fixedly installed with a guide column corresponding to the vertical cylinder and located on the outer side of the corresponding vertical cylinder, and the lower end surface of the first bracket is also fixedly installed with a guide column located in the innermost vertical cylinder, a cavity is provided in the guide column, and a front-back symmetrical limiting slide is opened through the guide column, and a screw rod passing through the upper end surface of the first bracket is installed in the guide column through a bearing, and a slider threadedly connected to the corresponding screw rod is slidably installed in the front-back symmetrical limiting slides on the same guide column, and a discharging ring plate located above the bearing circular plate is provided between adjacent vertical cylinders, between the outermost vertical cylinder and the support cylinder, and between the innermost vertical cylinder and the first shaft cylinder, the discharging ring plate is fixedly connected to the corresponding slider, the discharging ring plate is slidably connected to the corresponding guide column, and the lower end surface of the bearing circular plate is penetrated by a drainage hole corresponding to the discharge ring plate, and an electronic valve is provided in the drainage hole.

[0014] As a preferred technical solution of the present invention, the matching part includes a first belt and a second belt, the upper ends of several of the screw rods are connected by a first belt transmission, and the innermost screw rod and the second shaft cylinder are connected by a second belt transmission.

[0015] As a preferred technical solution of the present invention, the knocking part includes a fixed rod, a rotating cylinder, a curved plate, a right-angle support block and a spring telescopic rod. Except for the innermost guide column, the other guide columns close to the side wall of the first shaft cylinder are fixedly installed with a fixed rod through a fixed seat. A rotating cylinder corresponding to the sieve holes arranged one by one in the upper and lower directions is installed on the fixed rod through a bearing. The rotating cylinder is fixedly installed with a curved plate, and the outer side wall of the curved plate is covered with a layer of wear-resistant rubber. The guide column is fixedly installed with a right-angle support block corresponding to the corresponding rotating cylinder one by one. A spring telescopic rod is hinged between the right-angle support block and the corresponding curved plate, and a through groove corresponding to the curved plate is provided on the discharge ring plate.

[0016] As a preferred technical solution of the present invention, the brushing part includes a triangular protrusion and a brush. A triangular protrusion for contacting the sieve hole is fixedly installed on the front end of the arc plate and on the side wall close to the corresponding vertical cylinder, and a brush is fixedly installed on the arc plate and located in front of the triangular protrusion.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The ternary precursor washing wastewater filtration device, through the coordinated use of the driving mechanism, centrifugal filtration mechanism and anti-blocking mechanism, adopts the integrated operation of centrifugal filtration, graded screening and anti-blocking to complete the rapid centrifugal filtration of metal precipitates in the ternary precursor washing wastewater, optimizes the operation process, and realizes the efficient treatment of metal precipitates in the ternary precursor washing wastewater. At the same time, the internal metal precipitates are effectively graded and screened through the centrifugal filtration effect, and metal precipitates of different sizes are graded to improve the efficiency of subsequent recovery, extraction and reuse. At the same time, brushing and knocking are used in the centrifugal filtration process to effectively remove metal precipitate adhesions on the filter screen, keep the filter screen clean, and further improve the centrifugal filtration efficiency and the graded screening efficiency of metal precipitates.

[0019] 2. The ternary precursor washing wastewater filtration device, through the coordinated use of the set driving mechanism and the centrifugal filtration mechanism, can grade and screen the metal precipitates inside it through centrifugal filtration. The centrifugal filtration effect can effectively grade and screen the metal precipitates according to their size differences, and the effective grading and screening of metal precipitates can better improve the efficiency of subsequent recovery, extraction and reuse.

[0020] 3. The ternary precursor washing wastewater filtration device, through the mutual use of the anti-blocking mechanism and the centrifugal filtration mechanism, in the process of centrifugal filtration treatment, when the arc plate reaches the sieve hole, the filter screen is brushed by the brush, effectively removing the metal precipitates adhering to the filter screen and maintaining the cleanliness of the filter screen. When leaving the sieve hole, the filter screen is knocked by elastic deformation, thereby reducing the blockage of the filter screen through the dual methods of brushing and knocking, improving the centrifugal filtration efficiency, and improving the overall grading and screening performance of metal precipitates in the ternary precursor washing wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when it is working.

[0022] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention.

[0023] Figure 3 It is a partial three-dimensional structural diagram of the driving mechanism and centrifugal filtering mechanism of the present invention.

[0024] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the switching portion of the present invention.

[0025] Figure 5 It is a partially cutaway three-dimensional structural schematic diagram of the centrifugal filter mechanism of the present invention.

[0026] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0027] Figure 7 for Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0028] In the figure: 1. Support seat; 2. Support cylinder; 3. Equipment cylinder; 4. Driving mechanism; 41. Main body; 411. First bracket; 412. Second bracket; 413. First shaft cylinder; 414. Carrying circular plate; 415. Second shaft cylinder; 42. Driving unit; 421. First motor; 422. Third shaft cylinder; 43. Switching unit; 431. Electric push rod; 432. First jack; 433. First spring plug rod; 434. Second jack; 435. Second spring plug rod; 436. Spindle cone block; 5. Centrifugal Filter mechanism; 51, centrifugal part; 511, vertical cylinder; 512, sieve hole; 52, discharge part; 521, guide column; 522, limit slide; 523, screw rod; 524, slider; 525, discharge ring plate; 53, matching part; 531, first belt; 532, second belt; 6, anti-blocking mechanism; 61, knocking part; 611, fixing rod; 612, rotating cylinder; 613, arc plate; 614, right-angle support block; 615, spring telescopic rod; 62, scrubbing part; 621, triangular protrusion; 622, brush. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 and Figure 2 A ternary precursor washing wastewater filtering device includes a support base 1, a support cylinder 2 is fixedly installed in the support base 1, an equipment cylinder 3 is fixedly installed on the upper end of the support cylinder 2 through a set support, a centrifugal filtering mechanism 5 is provided in the support cylinder 2 for performing graded screening of metal precipitates in the ternary precursor washing wastewater through centrifugal filtration, and a driving mechanism 4 for providing power to the centrifugal filtering mechanism 5 is jointly provided in the support cylinder 2 and the equipment cylinder 3.

[0031] See also Figure 2 The driving mechanism 4 includes a main body 41 provided in the support cylinder 2 and the equipment cylinder 3, a driving part 42 is provided on the main body 41, and a switching part 43 for switching the centrifugal filtering mechanism 5 to perform centrifugal screening and discharge of metal precipitates is provided on the driving part 42.

[0032] See also Figure 1 and Figure 2The centrifugal filtering mechanism 5 includes a centrifugal portion 51 arranged on the main body 41, and a discharge portion 52 is provided in the support cylinder 2 for transporting the metal precipitate filtered by the centrifugal portion 51 upward. The discharge portion 52 is provided with a matching portion 53 that matches the main body 41.

[0033] See also Figure 2 and Figure 3 An anti-blocking mechanism 6 for adaptively preventing the centrifugal part 51 is provided in the support cylinder 2; the anti-blocking mechanism 6 includes a knocking part 61 provided on the main body 41 and used to cooperate with the centrifugal part 51 to elastically knock the centrifugal part 51, and a brushing part 62 for brushing the centrifugal part 51 is provided on the knocking part 61.

[0034] See also Figure 2 、 Figure 3 and Figure 4 The main body 41 includes a first bracket 411, a second bracket 412, a first shaft cylinder 413, a bearing circular plate 414 and a second shaft cylinder 415. The first bracket 411 is fixedly installed at the center of the equipment cylinder 3, and the second bracket 412 corresponding to the first bracket 411 is fixedly installed at the lower end of the support cylinder 2. The first shaft cylinder 413 is installed between the second bracket 412 and the first bracket 411 through a bearing. The outer ring wall of the first shaft cylinder 413 is fixedly sleeved with a bearing circular plate 414 located above the second bracket 412. The bearing circular plate 414 is connected to the second bracket 412 through a bearing. The upper end of the first bracket 411 is equipped with a second shaft cylinder 415 coaxial with the first shaft cylinder 413 through a bearing.

[0035] See also Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The driving part 42 includes a first motor 421 and a third shaft cylinder 422. The first bracket 411 and the second bracket 412 are jointly penetrated by a bearing to install a third shaft cylinder 422 located in the first shaft cylinder 413. The third shaft cylinder 422, the first shaft cylinder 413 and the second shaft cylinder 415 are coaxial. The upper end of the third shaft cylinder 422 passes through the second shaft cylinder 415. The first motor 421 is fixedly installed in the equipment cylinder 3. The output end of the first motor 421 is connected to the third shaft cylinder 422 through a transmission gear set.

[0036] See also Figure 2 、 Figure 3 and Figure 4The switching part 43 includes an electric push rod 431, a first socket 432, a first spring plug rod 433, a second socket 434, a second spring plug rod 435 and a spindle-shaped block 436. The electric push rod 431 is fixedly installed on the upper end surface of the third shaft cylinder 422. The inner ring wall of the second shaft cylinder 415 is provided with a plurality of first matching sockets in a circumferential array. The third shaft cylinder 422 is provided with a first socket 432 corresponding to the first matching sockets one by one. The first spring plug rod 433 is slidably installed in the first socket 432. The inner ring wall of the first shaft cylinder 413 is provided with a plurality of second matching sockets in a circumferential array. The third shaft cylinder 422 is provided with a second socket 434 corresponding to the second matching sockets one by one. The second spring plug rod 435 is slidably installed in the second socket 434. The telescopic end of the electric push rod 431 is fixedly installed with a spindle-shaped block 436 located in the third shaft cylinder 422.

[0037] See also Figure 2 、 Figure 3 and Figure 5 The centrifugal part 51 includes a vertical cylinder 511 and a sieve hole 512. A plurality of vertical cylinders 511 with increasing radius are fixedly installed on the upper end surface of the supporting circular plate 414 from the inside to the outside. The plurality of vertical cylinders 511 are coaxial with the first shaft cylinder 413. A plurality of sieve holes 512 are evenly penetrated through the outer ring wall of the vertical cylinder 511 in an array manner. Screens are arranged in the sieve holes 512, and the mesh size of the screen on the vertical cylinder 511 increases from the inside to the outside.

[0038] During specific operation, when it is necessary to centrifuge and separate the metal precipitates in the ternary precursor washing wastewater, the ternary precursor washing wastewater containing the metal precipitates is first passed into the innermost vertical cylinder 511, and then the electric push rod 431 is started so that its telescopic end carries the spindle-shaped block 436 to the second spring plug 435, so that the spindle-shaped block 436 synchronously squeezes the second spring plug 435 outward. At this time, the second spring plug 435 will pass through the second socket 434 and be inserted into the second matching socket, thereby locking the third shaft cylinder 422 with the first shaft cylinder 413.

[0039] Then start the first motor 421 to rotate the third shaft cylinder 422 through the transmission gear set, and the third shaft cylinder 422 will rotate the supporting circular plate 414 through the first shaft cylinder 413, and the supporting circular plate 414 will cause several vertical cylinders 511 to rotate synchronously counterclockwise, and the unidirectional rotation of the vertical cylinder 511 will perform centrifugal filtration operation on the ternary precursor washing wastewater. The centrifugal filtration operation can effectively grade and screen the metal precipitates according to the size differences of the metal precipitates, because the ternary precursor washing wastewater will continuously pass through the sieve in the sieve hole 512 during the centrifugal filtration operation, and the sieve with increasing mesh number will grade and screen the metal precipitates inside the ternary precursor washing wastewater, and the graded screening will obtain metal precipitates of different sizes, so as to improve the efficiency of subsequent recovery, extraction and reuse.

[0040] See also Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The discharge part 52 includes a guide column 521, a limiting slide 522, a screw rod 523, a slider 524 and a discharge ring plate 525. The lower end surface of the first bracket 411 is fixedly installed with a guide column 521 that corresponds to the vertical cylinder 511 one by one and is located on the outside of the corresponding vertical cylinder 511. The lower end surface of the first bracket 411 is also fixedly installed with a guide column 521 located in the innermost vertical cylinder 511. A cavity is provided in the guide column 521. The guide column 521 is penetrated by a front-to-back symmetrical limiting slide 522. The guide column 521 is installed with a screw rod 523 that penetrates the upper end surface of the first bracket 411 through a bearing. Slide blocks 524 threadedly connected to the corresponding screw rods 523 are installed in the front-to-back symmetrical limiting slides 522 on the column 521 for sliding movement. Discharge ring plates 525 located above the bearing circular plate 414 are provided between adjacent vertical cylinders 511, between the outermost vertical cylinder 511 and the support cylinder 2, and between the innermost vertical cylinder 511 and the first shaft cylinder 413. The discharge ring plates 525 are fixedly connected to the corresponding slide blocks 524, and the discharge ring plates 525 are slidably connected to the corresponding guide columns 521. The lower end surface of the bearing circular plate 414 is penetrated by drainage holes corresponding to the discharge ring plates 525, and electronic valves are provided in the drainage holes.

[0041] See also Figure 2 and Figure 3 The matching part 53 includes a first belt 531 and a second belt 532. The upper ends of the plurality of screw rods 523 are connected by the first belt 531, and the innermost screw rod 523 and the second shaft cylinder 415 are connected by the second belt 532.

[0042] During specific operation, after the ternary precursor washing wastewater is centrifuged and filtered for a certain period of time, the electric push rod 431 is started in reverse so that the spindle cone block 436 reaches the first spring plug rod 433, and the first spring plug rod 433 passes through the first socket 432 and is inserted into the first matching socket, thereby locking the third shaft cylinder 422 and the second shaft cylinder 415, so that the first shaft cylinder 413 no longer rotates when the third shaft cylinder 422 rotates.

[0043] Then the first motor 421 is started to rotate the second shaft cylinder 415 through the third shaft cylinder 422, and the second shaft cylinder 415 will rotate with the innermost screw rod 523 through the second belt 532, and will rotate synchronously with several screw rods 523 under the transmission of the first belt 531, thereby synchronously driving the slider 524 in the guide column 521 to rise, and the slider 524 will synchronously drive the corresponding discharge ring plate 525 to rise. During the rising process of the discharge ring plate 525, the rubber scraper provided on the side wall of the discharge ring plate 525 will scrape the metal precipitates attached to the side wall of the vertical cylinder 511 and the filter screen, and the scraped metal precipitates will fall onto the discharge ring plate 525, and when the discharge ring plate 525 rises between the support cylinder 2 and the equipment cylinder 3, the graded and screened metal precipitates will be brought out of the ternary precursor washing wastewater. At this time, the metal precipitates of different sizes on different discharge ring plates 525 are separately extracted and collected by an external extraction pump.

[0044] Then the electronic valve in the drain hole can be started to discharge the separated and filtered ternary precursor washing wastewater for the next process. After the ternary precursor washing wastewater is discharged, the electronic valve is closed and the first motor 421 is started in reverse so that the discharge ring plate 525 is lowered to the lowest point of the guide column 521 again through the cooperation of the discharge part 52 and the main body 41, and the next batch of ternary precursor washing wastewater can be processed.

[0045] See also Figure 3 、 Figure 5 、 Figure 6 and Figure 7 The knocking part 61 includes a fixed rod 611, a rotating cylinder 612, a curved plate 613, a right-angle support block 614 and a spring telescopic rod 615. Except for the innermost guide column 521, the other guide columns 521 are fixedly installed with a fixed rod 611 on a side wall close to the first shaft cylinder 413 through a fixed seat. The fixed rod 611 is mounted with a rotating cylinder 612 corresponding to the sieve holes 512 arranged up and down through a bearing. The curved plate 613 is fixedly mounted on the rotating cylinder 612, and the outer wall of the curved plate 613 is covered with a layer of wear-resistant rubber. The guide column 521 is fixedly installed with a right-angle support block 614 corresponding to the corresponding rotating cylinder 612. The spring telescopic rod 615 is hinged between the right-angle support block 614 and the corresponding curved plate 613. The discharge ring plate 525 is provided with a through groove corresponding to the curved plate 613.

[0046] See also Figure 3 and Figure 7 The brushing part 62 includes a triangular protrusion 621 and a brush 622. A triangular protrusion 621 for contacting the sieve hole 512 is fixedly installed on the front end of the arc plate 613 and on a side wall close to the corresponding vertical cylinder 511. A brush 622 located in front of the triangular protrusion 621 is fixedly installed on the arc plate 613.

[0047] During specific operation, when the vertical cylinder 511 rotates to grade and screen the metal precipitates in the ternary precursor washing wastewater, the curved plate 613 will be squeezed by the spring telescopic rod 615 so that its front end is always in contact with the side wall of the vertical cylinder 511. When the vertical cylinder 511 rotates unidirectionally and the front end of the curved plate 613 reaches the sieve hole 512, the brush 622 at the front end of the curved plate 613 will brush the filter screen in the sieve hole 512 to remove the metal precipitates adhering to the filter screen and maintain the cleanliness of the filter screen. When the curved plate 613 is about to leave the sieve hole 512, the sieve hole 512 will contact the triangular protrusion 621, causing the curved plate 613 to pop out to the side away from the corresponding vertical cylinder 511, and under the action of the spring telescopic rod 615, the curved plate 613 will bounce back and knock on the filter screen, thereby reducing the blockage of the filter screen and maintaining the smooth flow of water through the dual methods of brushing and knocking.

[0048] See also Figure 1 — Figure 7 Working principle: When it is necessary to perform centrifugal filtration and separation treatment on the metal precipitates in the ternary precursor washing wastewater, the ternary precursor washing wastewater containing the metal precipitates is first passed into the innermost vertical cylinder 511, and then the electric push rod 431 is started first, and the third shaft cylinder 422 is locked with the first shaft cylinder 413 through the switching part 43, and then the first motor 421 is started to perform centrifugal filtration operation on the ternary precursor washing wastewater through the driving part 42 and the centrifugal part 51, so as to grade and screen the metal precipitates inside the ternary precursor washing wastewater, and during the screening process, the filter screen is brushed and knocked by the anti-blocking mechanism 6 to reduce the blockage of the filter screen.

[0049] After the ternary precursor washing wastewater is centrifuged and filtered for a certain period of time, the electric push rod 431 is started in reverse to lock the third shaft cylinder 422 and the second shaft cylinder 415 through the switching part 43, and then the first motor 421 is started to cooperate with the driving part 42 and the discharge part 52 to bring the metal precipitates after graded screening out of the ternary precursor washing wastewater. At this time, the different metal precipitates after graded screening are extracted separately through an external extraction pump.

[0050] Then the electronic valve in the drain hole can be started to discharge the ternary precursor washing wastewater after centrifugal filtration separation to the subsequent process. After the ternary precursor washing wastewater is discharged, the electronic valve is closed, and the first motor 421 is started in reverse so that it cooperates with the discharge part 52 and the main body 41 to lower the discharge ring plate 525 to the lowest point of the guide column 521 again, and the next batch of ternary precursor washing wastewater can be processed.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0053] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ternary precursor washing wastewater filtering device, comprising a support base (1), characterized in that: A support cylinder (2) is fixedly installed in the support seat (1); an equipment cylinder (3) is fixedly installed on the upper end of the support cylinder (2) via a support column; a centrifugal filter mechanism (5) is provided in the support cylinder (2) for performing graded screening of metal precipitates in ternary precursor washing wastewater by centrifugal filtration; a driving mechanism (4) for providing power to the centrifugal filter mechanism (5) is provided in both the support cylinder (2) and the equipment cylinder (3); The driving mechanism (4) includes a main body (41) provided in both the support cylinder (2) and the device cylinder (3); a driving part (42) is provided on the main body (41); and a switching part (43) is provided on the driving part (42) for switching between centrifugal screening and discharge of metal precipitates in the centrifugal filtering mechanism (5); The centrifugal filtering mechanism (5) comprises a centrifugal portion (51) arranged on a main body (41); a discharge portion (52) for transporting metal precipitates filtered by the centrifugal portion (51) upward is arranged in the support cylinder (2); and a matching portion (53) for matching with the main body (41) is arranged on the discharge portion (52); An anti-blocking mechanism (6) for implementing adaptive anti-blocking for the centrifugal part (51) is provided in the support cylinder (2); The anti-blocking mechanism (6) comprises a knocking part (61) provided on the main body (41) and used for cooperating with the centrifugal part (51) to elastically knock the centrifugal part (51), and a scrubbing part (62) is provided on the knocking part (61) for scrubbing the centrifugal part (51).

2. The ternary precursor washing wastewater filtering device according to claim 1, characterized in that: The main body (41) includes a first bracket (411), a second bracket (412), a first shaft cylinder (413), a bearing circular plate (414) and a second shaft cylinder (415). The first bracket (411) is fixedly installed at the center of the interior of the equipment cylinder (3). The second bracket (412) corresponding to the first bracket (411) is fixedly installed at the lower end of the interior of the support cylinder (2). The first shaft cylinder (413) is installed between the second bracket (412) and the first bracket (411) via a bearing. The outer ring wall of the first shaft cylinder (413) is fixedly sleeved with a bearing circular plate (414) located above the second bracket (412). The bearing circular plate (414) and the second bracket (412) are connected via a bearing. The upper end of the first bracket (411) is installed with a second shaft cylinder (415) coaxial with the first shaft cylinder (413) via a bearing.

3. The ternary precursor washing wastewater filtering device according to claim 2, characterized in that: The driving part (42) includes a first motor (421) and a third shaft cylinder (422); the first bracket (411) and the second bracket (412) are both provided with a third shaft cylinder (422) located in the first shaft cylinder (413) through a bearing; the third shaft cylinder (422), the first shaft cylinder (413) and the second shaft cylinder (415) are coaxial; the upper end of the third shaft cylinder (422) passes through the second shaft cylinder (415); the first motor (421) is fixedly installed in the equipment cylinder (3); the output end of the first motor (421) is connected to the third shaft cylinder (422) through a transmission gear set.

4. The ternary precursor washing wastewater filtering device according to claim 3, characterized in that: The switching part (43) includes an electric push rod (431), a first jack (432), a first spring plug rod (433), a second jack (434), a second spring plug rod (435) and a spindle cone block (436). The electric push rod (431) is fixedly mounted on the upper end surface of the third shaft cylinder (422). The inner ring wall of the second shaft cylinder (415) is provided with a plurality of first matching jacks in a circumferential array. The third shaft cylinder (422) is provided with first jacks (433) corresponding to the first matching jacks. 432), a first spring plug rod (433) is slidably installed in the first socket (432), a plurality of second matching sockets are provided in a circular array on the inner ring wall of the first shaft cylinder (413), a second socket (434) corresponding to the second matching sockets is provided through the third shaft cylinder (422), a second spring plug rod (435) is slidably installed in the second socket (434), and a spindle cone-shaped stop block (436) located in the third shaft cylinder (422) is fixedly installed at the telescopic end of the electric push rod (431).

5. The ternary precursor washing wastewater filtering device according to claim 2, characterized in that: The centrifugal part (51) includes a vertical cylinder (511) and sieve holes (512). The upper end surface of the bearing circular plate (414) is fixedly mounted with a plurality of vertical cylinders (511) with increasing radii from the inside to the outside. The plurality of vertical cylinders (511) are coaxial with the first shaft cylinder (413). The outer ring wall of the vertical cylinder (511) is uniformly penetrated by a plurality of sieve holes (512) in an array manner.

6. The ternary precursor washing wastewater filtering device according to claim 5, characterized in that: The sieve holes (512) are all provided with sieves, and the mesh size of the sieves on the vertical cylinder (511) increases from the inside to the outside.

7. The ternary precursor washing wastewater filtering device according to claim 5, characterized in that: The discharge portion (52) includes a guide column (521), a limiting slideway (522), a screw rod (523), a slider (524) and a discharge ring plate (525). The lower end surface of the first bracket (411) is fixedly mounted with a guide column (521) corresponding to the vertical cylinder (511) and located outside the corresponding vertical cylinder (511). The lower end surface of the first bracket (411) is also fixedly mounted with a guide column (521) located in the innermost vertical cylinder (511). A cavity is provided in the guide column (521). A limiting slideway (522) is provided on the guide column (521) in a front-to-back symmetrical manner. A screw rod (523) is installed in the guide column (521) through a bearing and passes through the upper end surface of the first bracket (411). A slider (524) threadedly connected to the corresponding screw rod (523) is slidably installed in the front-to-back symmetrical limiting slideways (522) on a guide column (521). A discharge ring plate (525) located above the bearing circular plate (414) is provided between adjacent vertical cylinders (511), between the outermost vertical cylinder (511) and the support cylinder (2), and between the innermost vertical cylinder (511) and the first shaft cylinder (413). The discharge ring plate (525) is fixedly connected to the corresponding slider (524). The discharge ring plate (525) is slidably connected to the corresponding guide column (521). A drainage hole corresponding to the discharge ring plate (525) is installed through the lower end surface of the bearing circular plate (414), and an electronic valve is provided in the drainage hole.

8. The ternary precursor washing wastewater filtering device according to claim 7, characterized in that: The matching portion (53) includes a first belt (531) and a second belt (532); the upper ends of the plurality of screw rods (523) are connected to each other through the first belt (531); and the innermost screw rod (523) and the second shaft cylinder (415) are connected to each other through the second belt (532).

9. The ternary precursor washing wastewater filtering device according to claim 7, characterized in that: The knocking part (61) includes a fixed rod (611), a rotating cylinder (612), an arc plate (613), a right-angle support block (614) and a spring telescopic rod (615). Except for the innermost guide column (521), the other guide columns (521) are fixedly mounted with the fixed rod (611) on a side wall close to the first shaft cylinder (413) through a fixed seat. The fixed rod (611) is mounted with rotating shafts corresponding to the sieve holes (512) arranged one by one in the vertical direction through a bearing. The rotating cylinder (612) is fixedly mounted with an arc-shaped plate (613), the outer wall of the arc-shaped plate (613) is covered with a layer of wear-resistant rubber, a right-angle support block (614) corresponding to the corresponding rotating cylinder (612) is fixedly mounted on the guide column (521), a spring telescopic rod (615) is hinged between the right-angle support block (614) and the corresponding arc-shaped plate (613), and a through groove corresponding to the arc-shaped plate (613) is opened on the discharge ring plate (525).

10. The ternary precursor washing wastewater filtering device according to claim 9, characterized in that: The scrubbing portion (62) comprises a triangular convex block (621) and a brush (622); a triangular convex block (621) for contacting the sieve hole (512) is fixedly mounted on a side wall of the front end of the arc-shaped plate (613) and close to the corresponding vertical cylinder (511); and a brush (622) located in front of the triangular convex block (621) is fixedly mounted on the arc-shaped plate (613).

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