Electroplating wastewater treatment device and treatment process

Abstract

The present invention relates to the field of wastewater treatment technology, specifically to an electroplating wastewater treatment device and treatment process, including a frame, a filtering mechanism, a cleaning unit and an installation unit. The present invention selects the required number of filter boxes according to the filtering requirements, and quickly assembles all the filter boxes through the installation unit, that is, a filtering system with successively smaller filter holes is formed from top to bottom, which is convenient for quick disassembly and assembly, and improves the convenience of the use process. Secondly, it meets the filtering requirements of different batches of wastewater, ensures that the final pretreated wastewater meets the requirements of subsequent operations, avoids the problem of unstable pretreatment effects, and moves the filter plate in the backup area into the filter box for filtering by moving the filter plate backward, so that the filtering performance of the filter box meets the requirements. At the same time, the filter plate is cleaned by the cleaning unit in the process to avoid clogging that affects the filtering performance.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to an electroplating wastewater treatment device and a treatment process. Background Art

[0002] Electroplating wastewater refers to industrial wastewater containing heavy metal ions, chemicals and other pollutants generated during the electroplating process. Since the electroplating process involves a variety of metals and chemicals, the wastewater composition is complex and highly polluting, posing a potential threat to the environment and human health. Electroplating wastewater is generally treated by a combination of ion exchange treatment and PO reverse osmosis treatment, but it usually requires pretreatment before the above treatment operations. The first step in the pretreatment of electroplating wastewater is filtration to remove suspended matter and large particles in the wastewater to prevent the above substances from damaging the RO membrane.

[0003] At present, the above-mentioned filtration operation is mainly carried out through preliminary filtration through facilities such as screens, grit chambers, and sedimentation tanks. In order to prevent blockage or reduced efficiency, the above-mentioned facilities need to be cleaned and maintained regularly, and the labor and time costs required are high. Secondly, due to the complex and changeable composition of electroplating wastewater, the water quality and water volume fluctuate greatly, which makes it difficult to maintain a stable pretreatment effect. The degree of filtration required for electroplating wastewater in different production batches is different, and the filtration parameters in the device need to be adjusted multiple times. The overall operation is cumbersome, which is not conducive to batch filtration of electroplating wastewater. Summary of the invention

[0004] Based on this, it is necessary to provide an electroplating wastewater treatment device and a treatment process, aiming to solve the above-mentioned problems of the prior art.

[0005] The present application provides an electroplating wastewater treatment device, comprising: a frame, which is L-shaped, and the opposite surfaces of the vertical section and the horizontal section of the frame are fixedly provided with mounting shafts with axes extending from front to rear through fixing blocks, and two mounting shafts are jointly provided with two front-to-back symmetrical mounting plates, the rear mounting plate is fixedly sleeved on the mounting shaft, and the front mounting plate is slidably installed on the mounting shaft forward and backward.

[0006] A filtering mechanism, a filtering mechanism for filtering waste water is commonly arranged between the two mounting plates, the filtering mechanism comprises a filtering box, a plurality of filtering boxes distributed along the length direction are commonly installed on the two mounting plates, rectangular through grooves are provided on both left and right end surfaces of the filtering box, and the through groove on the left side of the filtering box is located above the through groove on the right side, a filtering plate is slidably arranged in the filtering box and is located between the two through grooves in the filtering box in the up and down directions, and a cleaning unit is arranged in the filtering box.

[0007] A mounting unit is provided between the frame, the mounting plate and all the filter boxes.

[0008] According to a favorable embodiment, a docking channel that docks with the left through groove on the adjacent filter box is fixedly provided in the through groove on the right side of the filter box, a water inlet pipe connected to the corresponding through groove is fixedly provided on the left end face of the leftmost filter box, and a water outlet pipe connected to the corresponding through groove is fixedly installed on the right end face of the rightmost filter box.

[0009] According to a preferred embodiment, the mounting unit includes a mounting hole, and the mounting plate is penetrated by a plurality of mounting holes arranged equidistantly along its length direction. The front and rear end surfaces of the filter box are fixedly provided with mounting columns with axes extending from front to rear, and the end surfaces of the mounting columns are chamfered.

[0010] According to a favorable embodiment, U-shaped mounting frames are fixedly provided on both front and rear end surfaces of the filter box, the U-shaped opening of the mounting frame faces to the left, and the left end surfaces of the two horizontal sections of the mounting frame are provided with card slots, which are rectangular sections and semicircular sections from left to right, and clamping columns are fixedly provided on both front and rear end surfaces of the filter box.

[0011] According to a favorable embodiment, the installation unit also includes a lifting plate, and the upper end surface of the horizontal section of the frame is slidably installed with the lifting plate through two vertical columns distributed on the left and right, and a fixed column with a vertical axis is fixedly arranged on the lifting plate, and a sliding block located on the right side of the fixed column is slidably arranged on the lifting plate, and the sliding column is installed on the sliding block, and the upper end surfaces of the fixed column and the sliding column are fixedly provided with locking blocks, and the locking blocks are respectively a right-angled trapezoidal section and a rectangular section from top to bottom, and the inclined surface of the right-angled trapezoidal section faces the rear side and is inclined backward from top to bottom, and a locking groove is provided on the locking block.

[0012] According to a favorable embodiment, the mounting unit further comprises a locking hole, the sliding column slides up and down through the sliding block, a plurality of locking holes equidistantly arranged from top to bottom are formed on the sliding column, and a latch is inserted on the sliding block for forward and backward sliding movement.

[0013] According to a favorable embodiment, the cleaning unit includes a movable plate, and the upper end surface of the lifting plate is provided with a movable plate that slides back and forth through a fixed rod from front to back through an axis, and the upper end surface of the movable plate is fixed with a plurality of driving rods that are equidistantly arranged from left to right and whose lengths decrease successively, and the rear end surface of the filter plate is fixed with a movable bar, and a circular hole is opened through the movable bar, and a multi-stage hydraulic push rod is jointly arranged between the movable plate and the lifting plate, and a reference bar is fixed on the upper end surface of the lifting plate.

[0014] According to a favorable embodiment, the cleaning unit also includes an L-shaped frame, the upper end surface of the filter box slides back and forth and is penetrated by the L-shaped frame, the lower end surface of the L-shaped frame is fixedly provided with a triangular push plate through a connecting plate, the rear end surface of the filter box is penetrated by a sewage trough located above the filter plate, and the L-shaped frame is fixedly connected to the corresponding movable bar through an L-shaped driving bar.

[0015] According to a favorable embodiment, the upper end surface of the filter box slides up and down and is penetrated by a T-shaped plate, the lower end surface of the T-shaped plate is fixedly provided with a sealing plate, a spring is fixedly provided between the horizontal section of the T-shaped plate and the upper end surface of the filter box, a triangular block in the form of a right triangle is fixedly provided on the upper end surface of the front end portion of the horizontal section of the L-shaped frame, the inclined surface of the triangular block is inclined downward from front to back, a matching groove is penetrated by the vertical section of the T-shaped plate, and the horizontal section of the L-shaped frame penetrates the matching groove.

[0016] In summary, the present invention includes at least one of the following beneficial effects: First, the present invention selects the required number of filter boxes according to the filtering requirements, and quickly assembles all the filter boxes through the installation unit, that is, a filtering system with successively smaller filter holes is formed from top to bottom, which is convenient for quick disassembly and assembly, and improves the convenience of the use process. Secondly, it meets the filtering requirements of different batches of wastewater, ensures that the final pretreated wastewater meets the needs of subsequent operations, avoids the problem of unstable pretreatment effects, and moves the filter plate in the backup area into the filter box for filtering through the process of moving the filter plate backward, so that the filtering performance of the filter box meets the requirements. At the same time, the filter plate is cleaned by the cleaning unit in the process to avoid clogging that affects the filtering performance.

[0017] 2. In the present invention, a three-point fixed installation is formed for each filter box through the cooperation between the installation shaft, the installation column and the installation frame. All the filter boxes are stacked and installed in sequence from top to bottom, and finally the front mounting plate is locked by the locking block to complete the locking of all the filter boxes. At this time, all the filter boxes and the frame together form a fixed triangular frame. The above processes cooperate with each other to improve the stability of the filter box during the fixed installation process, and the above method is convenient for disassembling the filter box or adding the filter box, which is convenient for subsequent maintenance or changing the overall filtering parameters, reducing costs and improving efficiency.

[0018] 3. In the present invention, during the backward movement of the filter plate, the connecting plate and the triangular push plate push the suspended matter and large particles of impurities in the filter box. After the connecting plate moves to the rear side of the corresponding slot, the drain chute opens. Under the action of the water flow, the suspended matter and large particles of impurities are discharged from the filter box through the drain chute. The filter plate is moved intermittently while the suspended matter and large particles in the filter box are discharged to avoid blockage while maintaining the filtering performance of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1A three-dimensional structural schematic diagram of an electroplating wastewater treatment device provided according to an embodiment of the present invention is shown.

[0021] Figure 2 A partial three-dimensional structural schematic diagram of an electroplating wastewater treatment device provided according to an embodiment of the present invention is shown.

[0022] Figure 3 The embodiment of the present invention provides Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 A schematic diagram of the three-dimensional structure among the mounting plate, mounting columns and filter box provided according to an embodiment of the present invention is shown.

[0024] Figure 5 A partial cross-sectional three-dimensional structural schematic diagram of a filter box, a docking channel and a filter plate provided according to an embodiment of the present invention is shown.

[0025] Figure 6 A schematic diagram of the three-dimensional structure among the moving plate, the driving rod and the moving bar provided according to an embodiment of the present invention is shown.

[0026] Figure 7 A schematic diagram of a partial cross-sectional three-dimensional structure between a filter box, a filter plate and a blocking plate provided according to an embodiment of the present invention is shown.

[0027] The above drawings include the following reference numerals: 1, frame; 10, mounting shaft; 11, mounting plate; 2, filter mechanism; 20, filter box; 200, through slot; 201, filter plate; 21, cleaning unit; 210, moving plate; 211, driving rod; 212, moving bar; 213, circular hole; 214, reference bar; 215, multi-stage hydraulic push rod; 220, L-shaped frame; 221, triangular push plate; 222, drain tank; 223, T-shaped plate; 224, Sealing plate; 225, spring; 226, triangular block; 227, matching groove; 23, mounting unit; 230, mounting hole; 231, mounting column; 232, mounting frame; 233, card slot; 234, card connection column; 240, lifting plate; 241, fixed column; 242, sliding block; 243, sliding column; 244, locking block; 245, locking groove; 25, locking hole; 250, latch; 26, docking channel; 260, water inlet pipe; 261, water outlet pipe. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0029] like Figure 1 As shown, an electroplating wastewater treatment device includes: a frame 1, which is L-shaped, and the opposite surfaces of the vertical section and the horizontal section of the frame 1 are fixedly provided with a mounting shaft 10 with an axis extending from front to rear through a fixing block, and two mounting shafts 10 are jointly provided with two front-to-back symmetrical mounting plates 11, the rear mounting plate 11 is fixedly sleeved on the mounting shaft 10, and the front mounting plate 11 is slidably installed on the mounting shaft 10 front and back.

[0030] like Figure 1 and Figure 5 As shown, a filter mechanism 2 for filtering waste water is commonly provided between the two mounting plates 11, and the filter mechanism 2 includes a filter box 20. A plurality of filter boxes 20 distributed along the length direction thereof are commonly provided on the two mounting plates 11, and through grooves 200 are provided on both left and right end surfaces of the filter box 20, and the through groove 200 on the left side of the filter box 20 is located above the through groove 200 on the right side, and a filter plate 201 is provided in the filter box 20 for sliding back and forth and located between the two through grooves 200 in the filter box 20 in the up and down directions, and the apertures of the filter holes on all the filter plates 201 decrease successively downward along the length direction of the mounting plate 11, and a cleaning unit 21 for cleaning the filter plate 201 and cleaning the filtered matter is provided in the filter box 20.

[0031] like Figure 1 As shown, a mounting unit 23 is commonly provided between the frame 1 , the mounting plate 11 and all the filter boxes 20 .

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, a docking channel 26 is fixedly provided in the through groove 200 on the right side of the filter box 20, which is docked with the through groove 200 on the left side of the adjacent filter box 20, a water inlet pipe 260 connected to the corresponding through groove 200 is fixedly provided on the left end face of the leftmost filter box 20, and a water outlet pipe 261 connected to the corresponding through groove 200 is fixedly installed on the right end face of the rightmost filter box 20, and the electroplating wastewater is pumped into the water inlet pipe 260 by a water pump (not shown in the figure).

[0033] During operation, firstly, the required number of filter boxes 20 are selected according to the filtering treatment requirements, and all the filter boxes 20 are installed in sequence between the two mounting plates 11 through the mounting unit 23, and the docking channel 26 on the left filter box 20 is made to pass through the left through groove 200 on the right adjacent filter box 20, and then the two mounting plates 11 and all the filter boxes 20 are locked. Secondly, the water inlet pipe 260 is connected to the leftmost filter box 20, and the water outlet pipe 261 is connected to the rightmost filter box 20. Then the water pump works to pump the electroplating wastewater into the leftmost filter box 20 through the water inlet pipe 260, and the wastewater passes through each filter box 20 from top to bottom. In this process, the filter plates 201 in all the filter boxes 20 filter the wastewater in sequence from large pore size to small pore size, and filter the suspended matter and large particulate matter in the wastewater. Finally, the filtered wastewater is discharged through the outlet pipe 261.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the mounting unit 23 includes a mounting hole 230, and the mounting plate 11 is provided with a plurality of mounting holes 230 arranged equidistantly along its length direction. The front and rear end surfaces of the filter box 20 are fixedly provided with mounting columns 231 with an axis extending from front to rear, and the end surfaces of the mounting columns 231 are chamfered.

[0035] like Figure 2 , Figure 4 and Figure 7 As shown, U-shaped mounting frames 232 are fixedly provided on both front and rear end surfaces of the filter box 20, the U-shaped opening of the mounting frame 232 faces the left side, and the left end surfaces of the two horizontal sections of the mounting frame 232 are provided with card slots 233, and the card slots 233 are respectively a rectangular section and a semicircular section from left to right. A clamping column 234 is fixedly provided on both front and rear end surfaces of the filter box 20, and the clamping column 234 cooperates with the card slot 233 corresponding to the upper horizontal section of the mounting frame 232 on the right adjacent filter box 20, and the mounting column 231 cooperates with the card slot 233 on the lower horizontal section of the adjacent mounting frame 232.

[0036] like Figure 1 and Figure 2As shown, the mounting unit 23 also includes a lifting plate 240, and the upper end surface of the horizontal section of the frame 1 is slidably mounted with the lifting plate 240 by two vertical columns distributed left and right. The lifting plate 240 is driven by an external hydraulic cylinder (not shown in the figure) to move up and down, and a fixed column 241 with a vertical axis is fixedly arranged on the lifting plate 240, and a sliding block 242 located on the right side of the fixed column 241 is slidably arranged on the lifting plate 240 left and right, and a sliding column 243 is mounted on the sliding block 242, and a locking block 244 is fixedly arranged on the upper end surfaces of the fixed column 241 and the sliding column 243, and the locking block 244 is successively composed of a right-angled trapezoidal section and a rectangular section from top to bottom, and the inclined surface of the right-angled trapezoidal section faces the rear side and tilts backward from top to bottom, and a locking groove 245 is provided on the locking block 244.

[0037] During operation, the rear mounting plate 11 is fixed and maintains a set tilt angle. In the process of assembling all the filter boxes 20, the first installed filter box 20 is first manually moved to the leftmost installation position, and the card grooves 233 on the lower horizontal sections of the two mounting frames 232 on the filter box 20 are tightly engaged with the left mounting shaft 10. Then, the filter box 20 is moved backward so that the rear mounting column 231 passes through the corresponding mounting hole 230 on the rear mounting plate 11. Through the above operation process, the filter box 20 is preliminarily supported, and the preliminary assembly of the first filter box 20 is completed.

[0038] After that, the second filter box 20 is installed, and the second filter box 20 is manually moved to the right side position of the first filter box 20, and the first filter box 20 is moved forward so that the rear mounting post 231 of the filter box 20 is separated from the rear mounting plate 11, so as to avoid the subsequent assembly process of the filter box 20, and the card slot 233 of the upper horizontal section of the mounting frame 232 on the second filter box 20 is engaged with the card connection post 234 on the first filter box 20, and the card slot 233 on the lower horizontal section is engaged with the mounting post 231 on the first filter box 20. In this process, the docking channel 26 in the first filter box 20 is docked with the through groove 200 on the left side of the second filter box 20, and the two filter boxes 20 are moved backward so that the mounting posts 231 on the two filter boxes 20 can be inserted into the corresponding mounting holes 230 on the rear mounting plate 11, completing the preliminary assembly of the second filter box 20.

[0039] Repeat the above process to complete the preliminary assembly process of all filter boxes 20. At this time, the rear mounting columns 231 of all filter boxes 20 are inserted into the mounting holes 230 on the rear mounting plate 11. Then, the front mounting plate 11 is moved backward so that the front mounting columns 231 are inserted into the mounting holes 230 on the front mounting plate 11. At this point, the assembly and placement process of all filter boxes 20 is completed. For each filter box 20, a three-point mounting and fixing structure is formed by the mounting columns 231, the mounting frame 232 and the clamping columns 234 thereon, thereby improving the stability of the filter box 20.

[0040] Afterwards, the external hydraulic cylinder works to make the lifting plate 240 drive the two locking blocks 244 to move up synchronously. The inclined surface of the locking block 244 contacts the front mounting plate 11, pushing the mounting plate 11 to move backward and make it close to the filter box 20. Finally, the mounting shaft 10 is inserted into the corresponding locking groove 245, completing the locking of the front mounting plate 11 and the locking assembly of all filter boxes 20.

[0041] In summary, the required number of filter boxes 20 are assembled in the above manner to form a filtration path composed of multiple layers of filter plates 201 with different pore sizes, and the required filtration effect is achieved through multi-stage filtration. Secondly, the above assembly method facilitates the installation and disassembly of the filter box 20.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, the mounting unit 23 also includes a locking hole 25, and the sliding column 243 slides up and down through the sliding block 242. The sliding column 243 is provided with a plurality of locking holes 25 arranged equidistantly from top to bottom, and the sliding block 242 is inserted with a latch 250 for sliding forward and backward.

[0043] According to the number of filter boxes 20 that need to be assembled, before the locking block 244 is moved up to lock, the sliding block 242, the sliding column 243 and the right locking block 244 are manually moved so that the locking block 244 moves to below the installation position of the rightmost filter box 20. At the same time, the pin 250 is manually pulled out and the sliding column 243 is moved to adjust the height of the locking block 244 so that when the left locking block 244 is moved up to lock, the locking block 244 is also moved up to lock the corresponding filter box 20. Thereafter, the pin 250 is manually inserted into the corresponding locking hole 25 to complete the adjustment and locking process of the right locking block 244.

[0044] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the cleaning unit 21 includes a movable plate 210, and the upper end surface of the lifting plate 240 is provided with a movable plate 210 that slides back and forth through a fixed rod from front to back through an axis, and the upper end surface of the movable plate 210 is fixedly provided with a plurality of driving rods 211 that are equidistantly arranged from left to right and whose lengths decrease successively, and the rear end surface of the filter plate 201 is fixedly provided with a movable bar 212, and a circular hole 213 is opened through the movable bar 212, and a multi-stage hydraulic push rod 215 is commonly provided between the movable plate 210 and the lifting plate 240, and a reference bar 214 is fixedly provided on the upper end surface of the lifting plate 240.

[0045] During the locking process of all filter boxes 20, the multi-stage hydraulic push rod 215 works to make the movable plate 210 drive all the driving rods 211 thereon to move forward synchronously. The movable plate 210 moves to contact with the reference bar 214 and then stops. At this time, all the driving rods 211 are located at the position docking with the movable bar 212. Then the external hydraulic cylinder works to make the lifting plate 240 move up for locking. The lifting plate 240 drives the movable plate 210 and all the driving rods 211 to move up synchronously. The driving rod 211 passes through the circular hole 213 on the corresponding movable bar 212, which is convenient for subsequently driving the filter plate 201 to move back and forth to adjust the filter area.

[0046] Initial state see Figure 5 In this state, the area where the filter plate 201 is located inside the filter box 20 is the filtering area, and the area where the filter plate 201 is located outside the filter box 20 is the backup area. After a period of filtering operation in the filter box 20, the filtering effect of the filter plate 201 in the filtering area is reduced. At this time, the multi-stage hydraulic push rod 215 works to make the movable plate 210 drive all the filter plates 201 to move backward through the driving rod 211, so that the filter plate 201 in the backup area enters the filtering area for replacement, ensuring that the filtering capacity of the filter plate 201 in the filtering area meets the demand.

[0047] like Figure 1 and Figure 7 As shown, the cleaning unit 21 also includes an L-shaped frame 220, the upper end surface of the filter box 20 slides back and forth and is penetrated by the L-shaped frame 220, the lower end surface of the L-shaped frame 220 is fixedly provided with a triangular push plate 221 through a connecting plate, and the rear end surface of the filter box 20 is penetrated by a sewage trough 222 located above the filter plate 201, and the L-shaped frame 220 is fixedly connected to the corresponding movable bar 212 through an L-shaped driving bar.

[0048] like Figure 1 and Figure 7 As shown, the upper end surface of the filter box 20 slides up and down and is penetrated by a T-shaped plate 223, the lower end surface of the T-shaped plate 223 is fixedly provided with a blocking plate 224, a spring 225 is fixedly provided between the horizontal section of the T-shaped plate 223 and the upper end surface of the filter box 20, a right-angled triangle block 226 is fixedly provided on the upper end surface of the front end portion of the horizontal section of the L-shaped frame 220, the inclined surface of the triangular block 226 is inclined downward from front to back, the vertical section of the T-shaped plate 223 is penetrated by a matching groove 227, and the horizontal section of the L-shaped frame 220 is penetrated by the matching groove 227.

[0049] During operation, during the backward movement of the filter plate 201, the filter plate 201 slides back and forth relative to the sealing plate 224. The sealing plate 224 performs preliminary cleaning on the filter plate 201 in the filter area, so that large particles and suspended matter attached thereto remain in the filter box 20. At the same time, the moving bar 212 drives the connecting plate and the triangular push plate 221 to move backward synchronously through the L-shaped frame 220. During this process, the connecting plate and the triangular push plate 221 push the suspended matter and large particles of impurities in the filter box 20 to move backward synchronously.

[0050] As the L-shaped frame 220 continues to move backward, when the inclined surface of the triangular block 226 contacts the inner wall of the matching groove 227, the connecting plate and the triangular block 226 are located on the rear side of the inside of the filter box 20, so that the area between the connecting plate and the inner wall of the rear side of the filter box 20 is separated, which is convenient for continued filtration between the front side of the connecting plate and the inner wall of the front side of the filter box 20, while avoiding the backflow of suspended matter and large particles of impurities pushed in the above process. At the same time, the triangular block 226 lifts up the T-shaped plate 223 and the sealing plate 224, and the spring 225 is stretched. At this time, the sewage trough 222 is opened. Under the action of the water flow in the above area, this part of the suspended matter and large particles of impurities are discharged from the filter box 20 through the sewage trough 222. When the subsequent moving bar 212 moves forward and resets, the triangular block 226 withdraws from the matching groove 227, and the elastic force generated by the deformation of the spring 225 resets the sealing plate 224 to continue to block the sewage trough 222.

[0051] In summary, the above cleaning process is repeated to complete the sewage discharge process of suspended matter and impurities in the filter box 20 to avoid clogging problems. Secondly, after the filter plate 201 is moved out of the filter box 20, the filter plate 201 located in the backup area can be cleaned to ensure that the filtering capacity meets the operational requirements.

[0052] like Figure 1-Figure 7 As shown, in addition, the present invention also proposes a process for treating electroplating wastewater, comprising the following steps: S1, assembling the filter box 20: moving the first installed filter box 20 to the leftmost installation position, and making the card slots 233 on the lower horizontal sections of the two mounting frames 232 on the filter box 20 snap into contact with the left mounting shaft 10, and then moving the filter box 20 backward so that the rear mounting column 231 passes through the corresponding mounting hole 230 on the rear mounting plate 11. Through the above operation process, the first filter box 20 is preliminarily supported, and repeating the above process to install and place all the filter boxes 20 in sequence from top to bottom.

[0053] S2. Lock the filter box 20: manually move the sliding block 242 to just below the installation position of the rightmost filter box 20, and adjust the height of the locking block 244. Then the external hydraulic cylinder works to make the lifting plate 240 drive the two locking blocks 244 to move up synchronously, and the installation shaft 10 is inserted into the corresponding locking groove 245, completing the locking of the front mounting plate 11 and the locking assembly of all filter boxes 20.

[0054] S3. Filtration and self-cleaning: The external water pump works to pump the electroplating wastewater into the leftmost filter box 20 through the water inlet pipe 260. The wastewater passes through each filter box 20 from top to bottom in turn to filter the suspended matter and large particles in the wastewater. Finally, the filtered wastewater is discharged through the outlet pipe 261. At the same time, during the above process, the multi-stage hydraulic push rod 215 works to make the movable plate 210 drive all the filter plates 201 to move backward through the driving rod 211, so that the filter plates 201 in the backup area enter the filter area for replacement. At the same time, the connecting plate pushes the suspended matter and large particles in the filter box 20 to move to the vicinity of the sewage trough 222, and are discharged through the action of water flow.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electroplating wastewater treatment device, characterized in that: include: A frame (1), wherein the frame (1) is L-shaped, and opposite surfaces of the vertical section and the horizontal section of the frame (1) are fixedly provided with mounting shafts (10) whose axes extend from front to rear through fixing blocks, and two mounting shafts (10) are jointly provided with two front-to-back symmetrical mounting plates (11), the rear mounting plate (11) is fixedly sleeved on the mounting shaft (10), and the front mounting plate (11) is slidably installed on the mounting shaft (10) in a front-to-back manner; A filter mechanism (2), wherein a filter mechanism (2) for filtering wastewater is disposed between the two mounting plates (11), the filter mechanism (2) comprising a filter box (20), a plurality of filter boxes (20) distributed along the length direction of the two mounting plates (11) being disposed on the two mounting plates (11), rectangular through grooves (200) being provided on both left and right end surfaces of the filter box (20), and the left through groove (200) of the filter box (20) being located above the right through groove (200), a filter plate (201) being disposed in the filter box (20) so as to slide forward and backward and be located between the two through grooves (200) in the filter box (20) in the up-down direction, and a cleaning unit (21) being disposed in the filter box (20); A mounting unit (23), wherein the mounting unit (23) is commonly disposed between the frame (1), the mounting plate (11) and all the filter boxes (20); A U-shaped mounting frame (232) is fixedly provided on both the front and rear end surfaces of the filter box (20), the U-shaped opening of the mounting frame (232) faces the left side, and the left end surfaces of the two horizontal sections of the mounting frame (232) are provided with a clamping groove (233), the clamping groove (233) is a rectangular section and a semicircular section from left to right, and a clamping column (234) is fixedly provided on both the front and rear end surfaces of the filter box (20); The mounting unit (23) comprises a mounting hole (230), and the mounting plate (11) is provided with a plurality of mounting holes (230) arranged equidistantly along its length direction. The front and rear end surfaces of the filter box (20) are both fixedly provided with mounting columns (231) with axes extending from front to rear, and the end surfaces of the mounting columns (231) are chamfered.

2. The electroplating wastewater treatment device according to claim 1, characterized in that: A docking channel (26) is fixedly arranged in the through groove (200) on the right side of the filter box (20) for docking with the through groove (200) on the left side of the adjacent filter box (20); a water inlet pipe (260) connected to the corresponding through groove (200) is fixedly arranged on the left end surface of the leftmost filter box (20); and a water outlet pipe (261) connected to the corresponding through groove (200) is fixedly installed on the right end surface of the rightmost filter box (20).

3. The electroplating wastewater treatment device according to claim 1, characterized in that: The mounting unit (23) further comprises a lifting plate (240), the upper end surface of the horizontal section of the frame (1) being slidably mounted with the lifting plate (240) via two vertical columns distributed left and right, a fixed column (241) with a vertical axis being fixedly arranged on the lifting plate (240), a sliding block (242) being slidably arranged left and right on the lifting plate (240) and located on the right side of the fixed column (241), a sliding column (243) being mounted on the sliding block (242), locking blocks (244) being fixedly arranged on the upper end surfaces of the fixed column (241) and the sliding column (243), the locking blocks (244) being respectively right-angled trapezoidal sections and rectangular sections from top to bottom, the inclined surface of the right-angled trapezoidal sections facing the rear side and tilting backward from top to bottom, and a locking groove (245) being provided on the locking block (244).

4. The electroplating wastewater treatment device according to claim 3, characterized in that: The mounting unit (23) further comprises a locking hole (25), the sliding column (243) slides up and down to penetrate the sliding block (242), a plurality of locking holes (25) arranged equidistantly from top to bottom are provided on the sliding column (243), and a latch (250) is slidably inserted into the sliding block (242) forward and backward.

5. The electroplating wastewater treatment device according to claim 3, characterized in that: The cleaning unit (21) comprises a movable plate (210), the upper end surface of the lifting plate (240) is provided with the movable plate (210) by means of a fixed rod from front to back along an axis, a plurality of driving rods (211) arranged equidistantly from left to right and with decreasing lengths are fixedly provided on the upper end surface of the movable plate (210), a movable bar (212) is fixedly provided on the rear end surface of the filter plate (201), a circular hole (213) is penetrated through the movable bar (212), a multi-stage hydraulic push rod (215) is commonly provided between the movable plate (210) and the lifting plate (240), and a reference bar (214) is fixedly provided on the upper end surface of the lifting plate (240).

6. The electroplating wastewater treatment device according to claim 5, characterized in that: The cleaning unit (21) further comprises an L-shaped frame (220), the upper end surface of the filter box (20) slides back and forth and is penetrated by the L-shaped frame (220), the lower end surface of the L-shaped frame (220) is fixedly provided with a triangular push plate (221) via a connecting plate, the rear end surface of the filter box (20) is penetrated by a sewage discharge groove (222) located above the filter plate (201), and the L-shaped frame (220) is fixedly connected to the corresponding moving bar (212) via an L-shaped driving bar.

7. The electroplating wastewater treatment device according to claim 6, characterized in that: The upper end surface of the filter box (20) slides up and down and is penetrated by a T-shaped plate (223), the lower end surface of the T-shaped plate (223) is fixedly provided with a blocking plate (224), a spring (225) is fixedly provided between the horizontal section of the T-shaped plate (223) and the upper end surface of the filter box (20), a right-angled triangle block (226) is fixedly provided on the upper end surface of the front end portion of the horizontal section of the L-shaped frame (220), the inclined surface of the triangle block (226) is inclined downward from front to back, a matching groove (227) is penetrated by the vertical section of the T-shaped plate (223), and the horizontal section of the L-shaped frame (220) penetrates the matching groove (227).

8. A process for treating electroplating wastewater, which is completed by using the electroplating wastewater treatment device according to claim 7, characterized in that: The following steps are involved: S1, assembling the filter box (20): the slots (233) on the lower horizontal sections of the two mounting frames (232) on the first filter box (20) are clamped and tightly connected to the left mounting shaft (10), and then the filter box (20) is moved backward so that the rear mounting column (231) passes through the corresponding mounting hole (230) on the rear mounting plate (11), and the above process is repeated to install and place all the filter boxes (20) in order from top to bottom; S2, locking the filter box (20): moving the sliding block (242) to the position directly below the installation position of the rightmost filter box (20), and adjusting the height of the locking block (244), the lifting plate (240) drives the two locking blocks (244) to move upward synchronously, and the installation shaft (10) is inserted into the corresponding locking groove (245), thereby completing the locking of the front side installation plate (11) and the locking assembly of all the filter boxes (20); S3, Filtration and self-cleaning: The electroplating wastewater is pumped into the leftmost filter box (20) through the water inlet pipe (260), and the wastewater passes through each filter box (20) from top to bottom in turn to filter the suspended matter and large particles in the wastewater. Finally, the filtered wastewater is discharged through the water outlet pipe (261). At the same time, the multi-stage hydraulic push rod (215) works to make the movable plate (210) drive all the filter plates (201) to move backward through the driving rod (211), so that the filter plates (201) in the backup area enter the filter area for replacement. At the same time, the connecting plate pushes the suspended matter and large particles in the filter box (20) to move to the sewage trough (222) and discharge them through the action of water flow.

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