Hydraulic cylinder electroplating wastewater treatment and purification equipment

Abstract

The invention discloses hydraulic cylinder electroplating wastewater treatment and purification equipment in the technical field of wastewater treatment, which comprises a machine body, a driving shaft is transversely arranged above the machine body, the driving shaft is provided with a plurality of groups of filtering units and filter pressing units, and the filtering units and the filter pressing units are distributed in a staggered manner; clearing units are arranged on the two sides of each filtering unit, baffles are arranged on the two sides of the machine body, and a plurality of guide frames of V-shaped structures are evenly distributed on the baffles. The driving shaft is arranged to push the multiple sets of plate frames to synchronously conduct opening and closing operation, the purpose of synchronously discharging all solid waste in the filter press is achieved, the discharging operation efficiency is improved, the clearing unit is arranged to remove the residual solid waste on the filter plate, the solid waste can be effectively prevented from remaining on the filter plate, and the filter press is convenient to use. And stable proceeding of subsequent electroplating water treatment operation is ensured.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a hydraulic cylinder electroplating wastewater treatment and purification device. Background Technology

[0002] Electroplating wastewater is an industrial wastewater generated in the electroplating industry that contains harmful substances such as heavy metals, acids and alkalis, organic compounds and cyanides. Due to its complex composition and large amount of toxic substances, direct discharge without treatment will cause serious pollution to water bodies, soil and ecosystems. Therefore, electroplating wastewater needs to be purified before discharge.

[0003] The treatment and purification process of electroplating wastewater generally includes five parts: flocculation sedimentation, coarse filtration, neutralization reaction, precision filtration, and deep adsorption filtration. The coarse filtration section often uses a plate and frame filter press. However, existing plate and frame filter presses commonly suffer from the following problems: 1. When discharging the solid waste formed after filtration, only one set of plates and frames can be moved at a time, resulting in only a small portion of the solid waste being discharged from the filter press each time. This leads to a slow overall discharge process and low discharge efficiency. 2. Current discharge operations often rely on gravity to allow the solid waste to naturally detach from the plates and frames. However, because the solid waste is formed after compression, some of it tends to adhere to and remain on the filter plates. Existing filter presses lack measures to remove this residual waste, thus affecting the subsequent treatment effect. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned hydraulic cylinder electroplating wastewater treatment and purification equipment, the present invention proposes a hydraulic cylinder electroplating wastewater treatment and purification equipment to solve such problems.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a hydraulic cylinder electroplating wastewater treatment and purification device, including a machine body, a drive shaft is horizontally arranged above the machine body, the drive shaft is provided with multiple sets of filter units and pressure filter units, the filter units and pressure filter units are distributed in an alternating manner, each set of filter units is provided with a cleaning unit on both sides, baffles are provided on both sides of the machine body, and multiple sets of V-shaped guide frames are evenly distributed on the baffles; The drive shaft has multiple sets of spiral drive grooves with different lengths and spiral structures, and each set of spiral drive grooves has the same number of spiral turns. Each set of spiral drive grooves corresponds to a set of filter units or a set of pressure filter units. The cleaning unit includes two sets of scraping components symmetrically arranged inside the filter unit, guide components arranged at both ends of each set of scraping components, with the outer end of the guide component abutting against the outer side of the V-shaped inclined side of the guide frame, and reset components arranged inside both sides of the filter unit, with one end abutting against the other side of the guide component.

[0006] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, the machine body is provided with a drain pipe on its side, a feed pipe is provided at the center of the side of the machine body, a water inlet pipe is provided inside the feed pipe, and the water inlet pipe passes through the center of the filter unit and the filter press unit. At the same time, a connector is provided at the part of the water inlet pipe located inside the filter press unit. Two sets of limit frames are provided at the top of the machine body, and the drive shaft is located between the two sets of limit frames. A motor is connected to one end of the drive shaft.

[0007] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, the filter unit includes a first hanger disposed at the top of the filter unit and passing through the limiting frame, a plate frame located on the side of the filter unit, a filter plate disposed in the plate frame, and an extension shaft disposed in the first hanger, the extension shaft extending into the spiral drive groove, and the drive shaft passing laterally through the part of the first hanger located in the limiting frame.

[0008] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, wherein: discharge pipes are provided on both sides below the plate frame and are connected to the drain pipe, and the top of the discharge pipe is connected to the filter plate, a connecting pipe is provided at the center of the filter plate and is connected to the feed pipe, a filter pressing groove is provided inside the plate frame and the filter plate is located in the filter pressing groove, and the filter plate divides the filter pressing groove into left and right parts.

[0009] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, the filter press unit includes a second hanger disposed at the top of the filter press unit and passing through the limiting frame, a frame located on the side of the filter unit, an air bladder disposed within the frame, a second connecting pipe disposed at the center of the air bladder, a second extension shaft disposed within the second hanger and extending into the spiral drive groove, connecting rings disposed on both sides of the lower end of the frame, a pressure chamber opened inside the air bladder, and a second filter press groove opened within the frame, with the air bladder located within the second filter press groove and dividing the second filter press groove into left and right parts. The connector is located within the second connecting pipe, and the outer end of the connector extends into the pressure chamber.

[0010] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, wherein: the first connecting pipe is connected to the second connecting pipe, the first filter tank is connected to the second filter tank, and the two connected together form a filter chamber, and a slot communicating with the filter chamber is opened on the outer wall of one end of the first connecting pipe, and the discharge pipe is connected to the connecting ring.

[0011] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, the scraping assembly includes two sets of scrapers located on the front and rear sides of the filter plate, connecting blocks disposed at both ends of each set of scrapers, a reset component disposed between the two sets of connecting blocks distributed in the front and rear, and an elastic telescopic rod located between the connecting block and the scraper.

[0012] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, the guide assembly includes an elastic telescopic rod II located between two sets of connecting blocks distributed in the front and rear, and a guide shaft disposed at the outer end of the elastic telescopic rod II and abutting against the V-shaped inclined side of the guide frame.

[0013] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, the reset component includes a spring located inside the side of the filter unit, a push plate disposed at one end of the spring, and the push plate abutting against the side of the guide assembly.

[0014] As a preferred embodiment of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention, the filter unit has a mounting groove on its side that matches the spring, and the side of the mounting groove is open to the outside, and the push plate can slide vertically along the mounting groove.

[0015] The beneficial effects of this invention are as follows: By setting a drive shaft to drive multiple sets of plates and frames to open and close synchronously, the solid waste in the filter press can be discharged synchronously, thereby improving the efficiency of the discharge operation. The machine body is equipped with multiple sets of spiral drive grooves of different lengths, and the length ratio of the multiple sets of spiral drive grooves is 1:2:3:4..., with each set of spiral drive grooves corresponding to a set of filter units or filter press units. Therefore, by driving multiple sets of spiral drive grooves to move synchronously by the drive shaft, multiple sets of filter units and filter press units can be moved synchronously, thereby achieving the synchronous opening and closing of multiple sets of filter units and filter press units for discharge, significantly improving the working efficiency of the discharge operation. By setting up a cleaning unit to remove residual solid waste from the filter plate, it is possible to effectively prevent solid waste from remaining on the filter plate and ensure the smooth operation of subsequent electroplating water treatment. The cleaning unit is equipped with a scraping component on the outer wall of the filter plate. The scraping component can move along the outer wall of the filter plate while the plate frame is opening and closing, through the cooperation of the guide component and the guide frame, thereby scraping off the solid waste attached to the outside of the filter plate. This effectively prevents solid waste from remaining on the filter plate and ensures the smooth operation of subsequent electroplating water treatment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0017] Figure 2 This is a side view of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0018] Figure 3 This is a partial structural diagram of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0019] Figure 4 This is a schematic diagram of the drive shaft propulsion path of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0020] Figure 5 This is a schematic diagram of the filter unit of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0021] Figure 6 This is a schematic diagram of the internal structure of the filter unit in the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0022] Figure 7 This is a schematic diagram of the filter press unit of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0023] Figure 8 This is a schematic diagram of the internal structure of the filter press unit of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0024] Figure 9 This is a schematic diagram of the combined structure of the filtration unit and the pressure filter unit in the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0025] Figure 10 This is a schematic diagram of the cleaning unit of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0026] Figure 11 This is a schematic diagram of the working state structure of the cleaning unit of the hydraulic cylinder electroplating wastewater treatment and purification equipment of the present invention.

[0027] Reference numerals: 1. Machine body; 11. Drain pipe; 12. Feed pipe; 13. Water inlet pipe; 131. Connector; 14. Limiting frame; 15. Drive shaft; 151. Screw drive groove; 16. Motor; 17. Baffle; 18. Guide frame; 2. Filter unit; 21. Plate and frame; 22. Filter plate; 23. Hanger 1; 24. Extension shaft 1; 25. Discharge pipe; 26. Connecting pipe 1; 27. Filter press tank 1; 3. Filter press unit; 31. Frame 32. Airbag; 33. Connecting pipe II; 35. Hanger II; 36. Extension shaft II; 37. Connecting ring; 38. Pressure chamber; 39. Filter press tank II; 4. Cleaning unit; 41. Scraping assembly; 411. Scraper; 412. Connecting block; 413. Elastic telescopic rod I; 42. Guide assembly; 421. Elastic telescopic rod II; 422. Guide shaft; 43. Reset component; 431. Spring; 432. Push plate; 5. Filter press chamber. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Reference Figures 1 to 11 This invention includes a hydraulic cylinder electroplating wastewater treatment and purification device, comprising a body 1, a drive shaft 15 horizontally arranged above the body 1, the drive shaft 15 being provided with multiple sets of filter units 2 and pressure filter units 3, the filter units 2 and pressure filter units 3 being arranged in an alternating manner, each set of filter units 2 having a cleaning unit 4 on both sides, baffles 17 being provided on both sides of the body 1, the baffles 17 having multiple sets of V-shaped guide frames 18 evenly distributed on the baffles 17, the filter units 2 and pressure filter units 3 being installed in such a way that a set of pressure filter units 3 is arranged between every two adjacent sets of filter units 2, the V-shaped opening of the guide frame 18 having a large amplitude; Reference Figure 4 The drive shaft 15 has multiple sets of spiral drive grooves 151 with different lengths and spiral structures. Each set of spiral drive grooves 151 has the same number of spiral turns. Each set of spiral drive grooves 151 corresponds to a set of filter units 2 or a set of filter press units 3. The length ratio of the multiple sets of spiral drive grooves 151 is 1:2:3:4... Each set of spiral drive grooves 151 corresponds to only one set of filter units 2 or filter press units 3. The ratio of the distance between the beginning of each two adjacent sets of spiral drive grooves 151 to the distance between the ends of the same set of two adjacent sets of spiral drive grooves 151 is 1:2. Reference Figure 10 The cleaning unit 4 includes two sets of scraping components 41 symmetrically arranged inside the filter unit 2, guide components 42 arranged at both ends of each set of scraping components 41, with the outer end of the guide component 42 abutting against the outer side of the V-shaped inclined side of the guide frame 18, and reset components 43 arranged inside both sides of the filter unit 2, with one end abutting against the other side of the guide component 42. The scraping components 41 can scrape off the solid waste attached to the filter unit 2 by moving along the inner wall of the filter unit 2.

[0031] Furthermore, refer to Figure 1 The machine body 1 has a drain pipe 11 on its side and a feed pipe 12 at the center of its side. A water inlet pipe 13 is installed inside the feed pipe 12 and passes through the center of the filter unit 2 and the filter press unit 3. A connector 131 is installed at the part of the water inlet pipe 13 inside the filter press unit 3. Two sets of limit frames 14 are installed at the top of the machine body 1 and the drive shaft 15 is located between the two sets of limit frames 14. A motor 16 is connected to one end of the drive shaft 15. The drain pipe 11 is used to discharge the liquid pressed in the filter unit 2. The water inlet pipe 13 can inject liquid or gas into the interior of the filter press unit 3 through the connector 131. The motor 16 is used to drive the drive shaft 15 to rotate.

[0032] Among them, reference Figure 5 and Figure 6 The filter unit 2 includes a hanger 23 disposed at the top of the filter unit 2 and passing through the limiting frame 14, a plate frame 21 located on the side of the filter press unit 3, a filter plate 22 disposed in the plate frame 21, and an extension shaft 24 disposed in the hanger 23. The extension shaft 24 extends into the spiral drive groove 151. At the same time, the drive shaft 15 passes laterally through the part of the hanger 23 located in the limiting frame 14. The hanger 23 is limited by two sets of limiting frames 14. The extension shaft 24 extends into the spiral drive groove 151. Therefore, when the drive shaft 15 rotates, the spiral drive groove 151 will push the extension shaft 24 to move. The extension shaft 24 and the hanger 23 are limited by the limiting frame 14. Therefore, the filter unit 2 as a whole can only slide along the limiting frame 14 via the hanger 23.

[0033] Furthermore, refer to Figure 6The lower sides of the plate frame 21 are provided with discharge pipes 25, which are connected to the drain pipe 11. The top of the discharge pipe 25 is connected to the filter plate 22. The center of the filter plate 22 is provided with a connecting pipe 26, which is connected to the feed pipe 12. The inside of the plate frame 21 is provided with a filter press trough 27, and the filter plate 22 is located in the filter press trough 27. The filter plate 22 divides the filter press trough 27 into left and right parts. The discharge pipes 25 can discharge the liquid filtered by the filter plate 22, and the filter press trough 27 provides space for filtering electroplating water flocs.

[0034] Among them, reference Figure 7 and Figure 8 The filter press unit 3 includes a second hanger 35 disposed at the top of the filter press unit 3 and passing through the limiting frame 14, a frame 31 located on the side of the filter unit 2, an air bladder 32 disposed within the frame 31, a second connecting pipe 33 disposed at the center of the air bladder 32, a second extension shaft 36 disposed within the second hanger 35 and extending into the spiral drive groove 151, connecting rings 37 disposed on both sides of the lower end of the frame 31, a pressure chamber 38 opened inside the air bladder 32, and a second filter press groove 39 opened within the frame 31, with the air bladder 32 located within the second filter press groove 39, and the air bladder 32 dividing the second filter press groove 39 into left and right parts, and a connector 131 located within the second connecting pipe 33. The outer end of the connector 131 extends into the pressure chamber 38. The extension shaft 36 is driven by the spiral drive groove 151, which can push the filter press unit 3 to move on the limit frame 14 in the same way as the filter unit 2. The water inlet pipe 13 can deliver solids or liquids into the pressure chamber 38 through the connector 131, thereby causing the air bag 32 to expand. The expanded air bag 32 will compress the space between the filter unit 2 and the filter press unit 3, thereby squeezing the flocs located between them. The squeezed flocs will undergo solid-liquid separation. The solids remain between the filter unit 2 and the filter press unit 3, while the liquid is discharged through the filter plate 22 into the discharge pipe 25 and finally transported to the outside.

[0035] Furthermore, refer to Figure 3 Connecting pipe 26 is connected to connecting pipe 33, and filter press tank 27 is connected to filter press tank 39. The two connected components form filter press chamber 5. One end of connecting pipe 26 has a slot on its outer wall that is connected to filter press chamber 5. Discharge pipe 25 is connected to connecting ring 37. Connecting pipe 26 and connecting pipe 33 on multiple sets of filter units 2 and filter press unit 3 can be combined to form a tunnel for conveying electroplating water flocs inward by mutual contact. The tunnel is connected to feed pipe 12. Therefore, the electroplating water flocs to be filtered can be conveyed into the filter press chamber 5 composed of filter unit 2 and filter press unit 3 for filtration. Discharge pipe 25 and connecting ring 37 can form a tunnel for conveying the filtered liquid outward. The tunnel is connected to drain pipe 11, which can then convey the liquid outward.

[0036] Combination Figure 4 When the second extension shaft 36 and the first extension shaft 24 are respectively at the beginning of the first set of spiral drive grooves 151 and the second set of spiral drive grooves 151, the distance between them is 1. At this time, the corresponding frame 31 and plate frame 21 are spliced ​​together. When the drive shaft 15 rotates, the first set of spiral drive grooves 151 and the second set of spiral drive grooves 151 will push the corresponding second extension shaft 36 and the first extension shaft 24 from the beginning to the end. At this time, the distance between the second extension shaft 36 and the first extension shaft 24 increases from 1 to 2. At this time, the frame 31 and the plate frame 21 will be disconnected, and the distance between them increases, thereby realizing the opening and discharging action. Multiple sets of filter units 2 and filter press units 3 are driven by corresponding spiral drive grooves 151 on drive shaft 15 through corresponding extension shaft 1 24 and extension shaft 2 36. Each set of spiral drive grooves 151 corresponds to a set of filter units 2 or filter press units 3. Therefore, by driving multiple sets of spiral drive grooves 151 synchronously through drive shaft 15, multiple sets of filter units 2 and filter press units 3 can be moved. Moreover, the ratio of the total moving distance of each adjacent filter unit 2 and filter press unit 3 is proportionally increased, that is, the distance between each adjacent filter unit 2 and filter press unit 3 increases synchronously. In other words, at this time, filter units 2 and filter press units 3 are in an open discharge state. In summary, multiple sets of filter units 2 and filter press units 3 are driven synchronously by drive shaft 15, which can achieve synchronous driving of multiple sets of filter units 2 and filter press units 3 to open and close discharge operations, which significantly improves the working efficiency of discharge work. Similarly, rotating drive shaft 15 in the opposite direction can drive multiple sets of filter units 2 and filter press units 3 to reset and close, which is convenient for continuing the pressing and purification process.

[0037] Among them, reference Figure 10 The scraping assembly 41 includes two sets of scrapers 411 located on the front and rear sides of the filter plate 22, connecting blocks 412 disposed at both ends of each set of scrapers 411, a reset component 43 disposed between the two sets of connecting blocks 412 distributed in the front and rear, and an elastic telescopic rod 413 located between the connecting block 412 and the scraper 411. The connecting block 412 is attached to the inner wall of the filter plate 22 and can scrape off the solid waste attached to the filter plate 22 when it moves. The elastic telescopic rod 413, through cooperation with the connecting block 412, always pushes the scraper 411 to be attached to the outer surface of the filter plate 22. The filter unit 2 has slots on both sides that match the angle of the connecting block 412. When the filter unit 2 and the filter press unit 3 are attached, the connecting block 412 will be matched and locked in the slot.

[0038] Among them, reference Figure 10The guide assembly 42 includes a second elastic telescopic rod 421 located between two sets of connecting blocks 412 distributed front and rear, and a guide shaft 422 disposed at the outer end of the second elastic telescopic rod 421 and abutting against the V-shaped inclined side of the guide frame 18. The second elastic telescopic rod 421 pulls the two sets of connecting blocks 412 inward at all times, so that the scraping assembly 41 can be firmly attached to both sides of the filter unit 2, and the guide shaft 422 can be guided by the inclined side of the guide frame 18 when moving by abutting against the guide frame 18.

[0039] Among them, reference Figure 6 The reset component 43 includes a spring 431 located inside the side of the filter unit 2, a push plate 432 disposed at one end of the spring 431, and the push plate 432 abutting against the side of the guide component 42. The spring 431 pushes the push plate 432 elastically, which can keep the scraping component 41 and the guide component 42 in the center of the filter unit 2, that is, the initial position. When the scraping component 41 is subjected to external force and expands to the upper and lower sides of the filter unit 2, the spring 431 will contract and store energy, waiting for the reset operation.

[0040] Furthermore, refer to Figure 6 The filter unit 2 has a mounting groove on its side that matches the spring 431, and the side of the mounting groove is open to the outside. The push plate 432 can slide vertically along the mounting groove. The vertically sliding push plate 432 can push the scraping component 41 to perform a vertical position holding operation.

[0041] During use, refer to Figure 11 When the filter unit 2 opens and discharges material in the horizontal direction, the moving filter unit 2 will drive the cleaning unit 4 to move as a whole. The moving cleaning unit 4 will cause the top guide shaft 422 to move along the V-shaped inclined side of the guide frame 18. At this time, the push plate 432 will push the spring 431 to contract in the opposite direction. At this time, the two sets of scraping components 41 will move in opposite directions in the vertical direction through the cooperation of their respective guide shafts 422 and the guide frame 18. The vertically moving scraping components 41 will move on the outer wall of the filter plate 22 through the two sets of corresponding scrapers 411, thereby scraping off the solid waste attached to the filter plate 22. This can effectively prevent solid waste from remaining on the filter plate 22 and ensure the smooth operation of subsequent electroplating water treatment. Moreover, the above-mentioned cleaning operation is carried out synchronously with the discharge action of the filter unit 2, which can further speed up the discharge efficiency. When the filter unit 2 closes, the guide component 42 will move in the opposite direction along the guide frame 18 to achieve the reset operation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hydraulic cylinder electroplating wastewater treatment and purification equipment, comprising a machine body (1), characterized in that: The upper transverse of the machine body (1) is provided with a driving shaft (15), the driving shaft (15) is provided with a plurality of filtering units (2) and filter pressing units (3), the filtering units (2) and filter pressing units (3) are distributed in an interleaved manner, both sides of each filtering unit (2) are provided with a cleaning unit (4), both sides of the machine body (1) are provided with baffles (17), and the baffles (17) are uniformly provided with a plurality of guide frames (18) in V-shaped structure. A plurality of spiral drive grooves (151) with different lengths are formed in the driving shaft (15) in spiral structure, the number of spiral turns of each spiral drive groove (151) is the same, and each spiral drive groove (151) corresponds to a filtering unit (2) or a filter pressing unit (3). The cleaning unit (4) comprises two groups of scraping assemblies (41) symmetrically arranged in the filtering unit (2), guide assemblies (42) arranged at both ends of each scraping assembly (41), outer ends of the guide assemblies (42) abutting outside V-shaped inclined edges of the guide frame (18), and reset components (43) arranged in the inside of both sides of the filtering unit (2) and abutting on the other side of the guide assembly (42).

2. The hydraulic cylinder electroplating wastewater treatment and purification apparatus according to claim 1, characterized in that: The side of the machine body (1) is provided with a drain pipe (11), the center of the side of the machine body (1) is provided with a feeding pipe (12), the feeding pipe (12) is provided with a water inlet pipe (13), the water inlet pipe (13) passes through the center of the filtering unit (2) and the filter pressing unit (3), the part of the water inlet pipe (13) in the filter pressing unit (3) is provided with a connector (131), the top of the machine body (1) is provided with two groups of limiting frames (14), the driving shaft (15) is located between the two groups of limiting frames (14), and one end of the driving shaft (15) is connected with a motor (16).

3. The apparatus according to claim 2, wherein: The filtering unit (2) comprises a hanger one (23) arranged at the top of the filtering unit (2) and passing through the limiting frame (14), a plate frame (21) located on the side of the filter pressing unit (3), a filter plate (22) arranged in the plate frame (21), and an extension shaft one (24) arranged in the hanger one (23), and the extension shaft one (24) extends into the spiral drive groove (151), and the driving shaft (15) transversely passes through the part of the hanger one (23) located in the limiting frame (14).

4. The apparatus according to claim 3, wherein: The plate frame (21) is provided with a discharge pipe (25) on both sides below, the discharge pipe (25) is communicated with the drain pipe (11), the top of the discharge pipe (25) is communicated with the filter plate (22), the center of the filter plate (22) is provided with a connecting pipe one (26), the connecting pipe one (26) is communicated with the feeding pipe (12), the plate frame (21) is provided with a filter pressing groove one (27) in the inside, the filter plate (22) is located in the filter pressing groove one (27), and the filter plate (22) divides the filter pressing groove one (27) into two parts.

5. The apparatus according to claim 4, wherein: The filter pressing unit (3) comprises a hanging frame two (35) arranged at the top end of the filter pressing unit (3) and penetrating the limiting frame (14), a frame (31) arranged at the side of the filter unit (2), an air bag (32) arranged in the frame (31), a connecting pipe two (33) arranged at the center position of the air bag (32), an extension shaft two (36) arranged in the hanging frame two (35) and extending into the spiral driving groove (151), a connecting ring (37) arranged at the lower end of the frame (31), a pressure cavity (38) opened in the air bag (32), and a filter pressing groove two (39) opened in the frame (31), and the air bag (32) is located in the filter pressing groove two (39), and the air bag (32) divides the filter pressing groove two (39) into left and right two parts, and the joint (131) is located in the connecting pipe two (33), and the outer end of the joint (131) extends into the pressure cavity (38).

6. The apparatus according to claim 5, wherein: The connecting pipe one (26) and the connecting pipe two (33) are in communication, the filter pressing groove one (27) and the filter pressing groove two (39) are in abutting communication, the two in communication are combined into a filter pressing bin (5), and one end of the connecting pipe one (26) is provided with a notch in communication with the filter pressing bin (5), and the discharge pipe (25) and the connecting ring (37) are in abutting communication.

7. The hydraulic cylinder electroplating wastewater treatment and purification apparatus according to claim 3, characterized in that: The scraping assembly (41) comprises two groups of scraping plates (411) arranged at the front and rear sides of the filter plate (22), connecting blocks (412) arranged at the two ends of each group of scraping plates (411), a reset component (43) arranged between the two groups of connecting blocks (412) distributed in front and back, and elastic expansion rods one (413) arranged between the connecting blocks (412) and the scraping plates (411).

8. The apparatus according to claim 7, wherein the apparatus is characterized by: The guide assembly (42) comprises elastic expansion rods two (421) arranged between the two groups of connecting blocks (412) distributed in front and back, and guide shafts (422) arranged at the outer ends of the elastic expansion rods two (421) and abutting against the V-shaped bevels of the guide frame (18).

9. The apparatus according to claim 1, wherein: The reset component (43) comprises springs (431) arranged inside the side of the filter unit (2), push plates (432) arranged at one end of the springs (431), and the push plates (432) abutting against the side of the guide assembly (42).

10. The apparatus according to claim 9, wherein the apparatus is characterized by: The side of the filter unit (2) is provided with a mounting groove matched with the spring (431), and the side of the mounting groove is open outward, and the push plate (432) can slide in the vertical direction along the mounting groove.

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