A device for filtering and treating waste residue of electroplating wastewater

Abstract

The application discloses a kind of waste residue filtering treatment devices for electroplating wastewater, applied to electroplating wastewater treatment technical field, including wastewater treatment tank, the top of the wastewater treatment tank is bolted with sealing cover, the bottom of the sealing cover and the inside of wastewater treatment tank are fixedly connected with fixed rod, the bottom of the sealing cover and the inside of wastewater treatment tank are installed with the same two fixed rod surface penetration rotating sleeve connection rotating cylinder, the inside of the sealing cover one side is installed with first motor, the waste residue flocculation in the inside of electroplating wastewater is filtered by filter screen, so that the filtered electroplating wastewater is discharged into the inside of drainage tank through drain hole, simultaneously, rotating cylinder can rotate by itself, so after filter screen is scraped by screen scraping plate, waste residue flocculation accumulated outside filter screen can be scraped by screen scraping plate, so as to prevent waste residue flocculation from blocking filter device.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electroplating wastewater treatment, and particularly relates to a waste residue filtering treatment device for electroplating wastewater. BACKGROUND

[0002] Electroplating is a process of plating a thin layer of other metals or alloys on the surface of certain metals by using electrolysis. A large amount of harmful wastewater is generated during the electroplating process. In order to avoid pollution of the environment caused by direct discharge of the wastewater, the electroplating wastewater needs to be purified so as to meet the requirements of ecological environment detection before being discharged.

[0003] At present, a kind of electroplating wastewater filtering treatment device based on ecological environment detection is disclosed in Chinese invention with publication number CN116216892B, which relates to the technical field of wastewater treatment and comprises a treatment box, a liquid inlet pipe communicated with the side wall of the treatment box, a filter pipe communicated with the side wall of the treatment box, and a sewage discharge pipe communicated with the lower surface of the treatment box. The treatment box further comprises mixing structures respectively arranged on the inner walls of the treatment box for rapidly mixing electroplating wastewater with flocculants. The mixing structure comprises a rotating pipe rotatably installed on the inner wall of the treatment box and a motor for driving the rotating pipe to rotate. The present application sets the mixing structure to stir the wastewater with the help of the mesh cover, so that the wastewater keeps flowing, the mixing rate of the wastewater and the flocculants is accelerated, the mesh cover rotation can also make the air mixed with the flocculants discharged from different positions, thereby preventing the flocculants from gathering in a certain position as much as possible, further accelerating the mixing rate of the flocculants and the wastewater, and improving the working efficiency of the treatment device.

[0004] The existing electroplating wastewater contains a large amount of waste residue and particulate matter. The particulate matter is very small and needs to be fully filtered. Therefore, a chemical flocculant needs to be added to the electroplating wastewater to make the waste residue and other particulate matter in the electroplating wastewater flocculate together, so as to facilitate filtration. However, the conventional waste residue filtering treatment device for electroplating wastewater needs to first mix the electroplating wastewater with the chemical flocculant, and then make the waste residue and other particulate matter flocculate together before filtration treatment. The two processes cannot be performed simultaneously, thus the efficiency is low. Moreover, the flocculated waste residue is prone to clogging the filtering device, thereby affecting the treatment efficiency of the electroplating wastewater waste residue. In addition, the waste residue of the electroplating wastewater often contains a large amount of metal particulate matter, which is mixed with the flocculated waste residue after flocculation, thereby affecting the subsequent incineration efficiency of the flocculated waste residue and increasing the difficulty of treatment of the electroplating wastewater. SUMMARY

[0005] The present application aims to provide a waste residue filtering treatment device for electroplating wastewater, which has the advantages of improving the flocculation efficiency of the electroplating wastewater, preventing the flocculated waste residue from clogging the filtering device, and collecting the metal particulate matter in the flocculated waste residue, thereby reducing the difficulty of filtering treatment of the electroplating wastewater.

[0006] The above technical purpose of the present application is achieved by the following technical solution: a waste residue filtering treatment device for electroplating wastewater, comprising a wastewater treatment tank, a sealing cover is bolted to the top of the wastewater treatment tank, a fixed rod is fixedly connected to the bottom of the sealing cover and the inside of the wastewater treatment tank, a rotating cylinder penetratingly rotatably connected to the surface of the two fixed rods is installed on the bottom of the sealing cover and the inside of the wastewater treatment tank, a first motor is installed on one side of the inside of the sealing cover, a first bevel gear rotatably connected to the sealing cover is fixedly connected to the output end of the first motor, and a fourth bevel gear meshing with the first bevel gear is fixedly connected to the top of the rotating cylinder in the sealing cover.

[0007] By the above technical solution, the first bevel gear is driven to mesh with the fourth bevel gear by starting the first motor, thereby driving the rotating cylinder to rotate, and then the rotating cylinders at both ends of the rotating cylinder are driven to mesh with the second bevel gear through the third bevel gear, thereby enabling the rotating cylinder to not only rotate in the inside of the wastewater treatment tank, but also rotate by itself, so as to fully stir the electroplating wastewater and the chemical flocculation agent, thereby improving the flocculation efficiency of the electroplating wastewater; the waste residue flocculation in the electroplating wastewater is filtered through the filter screen holes, the filtered electroplating wastewater is discharged into the drainage tank through the drainage holes, and the rotating cylinder can rotate by itself, so that the waste residue flocculation accumulated outside the filter screen holes is scraped off by the screen scraper after passing through the screen holes, thereby preventing the waste residue flocculation from blocking the filtering device; the incomplete tooth ring close to the filter screen holes is driven to rotate by the rotating cylinder during the self-rotation, thereby enabling the incomplete tooth ring to mesh with the gear and drive the magnet rod to roll on the surface of the rotating cylinder, so that the magnet rod can attract the metal particles in the waste residue flocculation accumulated outside the filter screen holes, thereby reducing the difficulty of filtering treatment of the electroplating wastewater.

[0008] The present application is further provided that: the surface of the fixed rod in the inside of the wastewater treatment tank is fixedly sleeved with a second bevel gear, and the two sides of the second bevel gear are meshed with third bevel gears rotatably connected to the rotating cylinder in the inside of the wastewater treatment tank. The ends of the two third bevel gears away from the second bevel gear both penetrate the rotating cylinder in the inside of the wastewater treatment tank and are fixedly connected with rotating cylinders, and half of the surface of the rotating cylinder is provided with filter screen holes.

[0009] By the above technical solution, the electroplating wastewater and the chemical flocculation agent are fully stirred, thereby improving the flocculation efficiency of the electroplating wastewater and facilitating synchronous filtering.

[0010] The application is further provided with a fixed rod connected to both sides of the rotating cylinder inside the wastewater treatment tank, a magnet rod connected to one side of the fixed rod near the rotating cylinder, a surface of the magnet rod in a wave shape with the wave protrusions near the filter screen holes, a gear fixed to one side of the magnet rod away from the fixed rod, an incomplete tooth ring fixed to one end of the rotating cylinder surface away from the third bevel gear, the incomplete tooth ring installed on one half of the rotating cylinder surface near the filter screen holes, a connecting plate fixed to the top of the magnet rod, and a trapezoidal scraper installed on both sides of the connecting plate.

[0011] The above technical solution allows the magnet rod to attract the metal particles inside the waste residue flocculation outside the filter screen holes, thereby reducing the difficulty of electroplating wastewater filtration treatment.

[0012] The application is further provided with a mesh scraper fixed to one side of the fixed rod near the rotating cylinder, a drainage hole opened in the rotating cylinder, a sliding ring connected to the inner wall of the wastewater treatment tank, a connecting hole opened in the sliding ring and penetrating the rotating cylinder away from the third bevel gear, and a drainage groove opened in the inner wall of the wastewater treatment tank and connected to the connecting hole and the drainage hole.

[0013] The above technical solution allows the waste residue flocculation outside the filter screen holes to be scraped off, thereby preventing the waste residue flocculation from blocking the filter device.

[0014] The application is further provided with a second motor installed on one side of the bottom of the wastewater treatment tank, an output end of the second motor fixedly connected to an auger rotatingly connected to the wastewater treatment tank, and a slag discharge valve opened and threadedly connected to one end of the bottom of the wastewater treatment tank near the heat dissipation mesh.

[0015] The above technical solution allows the waste residue flocculation deposited at the bottom of the wastewater treatment tank to be discharged after the slag discharge valve is opened by rotating the auger driven by the second motor.

[0016] The application is further provided with a pouring opening opened on one side of the top of the sealing cover and a cover plate hingedly connected to the sealing cover.

[0017] The above technical solution allows the electroplating wastewater and the chemical flocculation agent to be quickly added to the wastewater treatment tank through the pouring opening without opening the sealing cover.

[0018] The application is further provided with a heat dissipation mesh fixedly installed on one side of the wastewater treatment tank and the sealing cover near the second motor and the first motor, respectively.

[0019] Adopting the technical scheme, ventilation and heat dissipation of the heat dissipation net and the first motor are facilitated, and dust and impurities are reduced from entering the interior.

[0020] The bottom of the fixed rod in the sealing cover is fixedly connected with a rhombic rod which is inserted into the top of the fixed rod in the wastewater treatment tank.

[0021] The two fixed rods in the wastewater treatment tank and the sealing cover are inserted by the rhombic rod, and the two rotating cylinders in the wastewater treatment tank and the sealing cover are inserted by sliding the insertion rod at the bottom of the second adapter disc into the interior of the first adapter disc, so that the sealing cover can be quickly detached from the top of the wastewater treatment tank, the interior of the wastewater treatment tank is cleaned, and the rotating cylinder in the wastewater treatment tank can be driven to rotate by aligning the fixed rod and the rotating cylinder.

[0022] The interior of the filter screen hole is in a V shape, and the small opening end faces the surface of the rotating cylinder.

[0023] The above technical scheme reduces the risk of waste residue flocculation blocking the interior of the filter screen hole, facilitates backwashing of the filter screen hole to flush out the waste residue flocculation inside, and facilitates filtration treatment of electroplating wastewater.

[0024] The side of the wastewater treatment tank close to the sliding ring is rotatably connected with a ball which is slidably connected with the sliding ring, and the interior of the connecting hole is bonded with a sealing ring which is slidably connected with the rotating cylinder away from the third bevel gear.

[0025] The above technical scheme reduces the friction of the sliding ring sliding in the wastewater treatment tank, improves the sealing property, and prevents unfiltered electroplating wastewater in the wastewater treatment tank from seeping into the drain groove.

[0026] In summary, the present application has the following advantages:

[0027] 1. By starting the first motor to drive the first bevel gear to engage with the fourth bevel gear to drive the rotating cylinder to rotate, and then by the rotating cylinders at both ends of the rotating cylinder engaging with the third bevel gear and the second bevel gear, the rotating cylinder can not only rotate in the wastewater treatment tank, but also rotate itself, thereby fully mixing electroplating wastewater and chemical flocculation reagents, and improving the flocculation efficiency of electroplating wastewater.

[0028] 2, the waste residue coagulation of the electroplating wastewater is filtered through the filter screen, the filtered electroplating wastewater is discharged into the drainage tank through the drainage hole, and the rotating cylinder can rotate automatically, so that the waste residue coagulation accumulated outside the filter screen is scraped off by the screen scraper after the filter screen, thereby preventing the waste residue coagulation from blocking the filter device;

[0029] 3, the incomplete tooth ring close to the filter screen is driven to rotate by the rotating cylinder during the self-rotation process, so that the incomplete tooth ring is meshed with the gear to drive the magnet rod to roll on the surface of the rotating cylinder, so that the magnet rod can suck the metal particles in the waste residue coagulation accumulated outside the filter screen, thereby reducing the difficulty of electroplating wastewater filtration treatment. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the structure schematic diagram of the present application;

[0031] Figure 2 is the structure sectional view of the present application;

[0032] Figure 3 is the structure sectional view of the rotating cylinder of the present application;

[0033] Figure 4 is the structure sectional view of the sliding ring of the present application;

[0034] Figure 5 is the structure sectional view of the present application;

[0035] Figure 6 is the structure sectional view of the present application Figure 2 A point enlargement diagram;

[0036] Figure 7 is the structure sectional view of the present application Figure 2 B point enlargement diagram;

[0037] Figure 8 is the structure sectional view of the present application Figure 3 C point enlargement diagram.

[0038] Reference numerals: 1, wastewater treatment tank; 2, sealing cover; 301, first motor; 302, first bevel gear; 303, fixed rod; 304, rotating cylinder; 305, second bevel gear; 306, third bevel gear; 307, rotating cylinder; 308, filter mesh; 309, fourth bevel gear; 401, fixed rod; 402, mesh scraping plate; 403, magnet rod; 404, connecting plate; 405, trapezoidal scraping plate; 406, drainage hole; 407, incomplete tooth ring; 408, gear; 409, sliding ring; 410, drainage groove; 411, connecting hole; 5, second motor; 6, auger; 7, slag discharge valve; 8, feeding port; 9, cover plate; 10, heat dissipation mesh; 11, rhombic rod; 12, first butt joint disc; 13, second butt joint disc; 14, plug-in rod; 15, drainage valve; 16, ball; 17, sealing ring. DETAILED DESCRIPTION

[0039] The application will be further described in detail below with reference to the accompanying drawings.

[0040] Example 1

[0041] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8The utility model provides a kind of waste residue filtering treatment device for electroplating wastewater, including wastewater treatment tank 1, the top of wastewater treatment tank 1 is bolted with sealing cover 2, the bottom of sealing cover 2 and the inside of wastewater treatment tank 1 are fixedly connected with fixed rod 303, the bottom of sealing cover 2 and the inside of wastewater treatment tank 1 are installed with the rotation sleeve 304 of same two fixed rod 303 surface penetration rotation sleeve, the inside of sealing cover 2 one side is installed with first motor 301, the output of first motor 301 is fixedly connected with the first bevel gear 302 of rotation connection with sealing cover 2, the top of the rotation sleeve 304 inside sealing cover 2 is fixedly connected with the fourth bevel gear 309 of meshing with first bevel gear 302;By opening first motor 301 drives first bevel gear 302 and fourth bevel gear 309 meshing to drive rotation sleeve 304 rotation, then through the rotation sleeve 307 of rotation sleeve 304 both ends by third bevel gear 306 and second bevel gear 305 meshing, to make rotation sleeve 307 not only can rotate in the inside of wastewater treatment tank 1, simultaneously itself can also carry out rotation, to carry out sufficient stirring to electroplating wastewater and chemical flocculation reagent, improve electroplating wastewater flocculation efficiency;The waste residue flocculation of electroplating wastewater inside is filtered by filter screen 308, makes the electroplating wastewater after filtering by drain hole 406 into the inside of drainage tank 410 and is discharged, simultaneously, because rotation sleeve 307 can rotate by itself, so filter screen 308 is after filter screen scraper 402, and filter screen scraper 402 can scrape off the waste residue flocculation that is accumulated outside filter screen 308, to prevent waste residue flocculation from blocking filter device;The incomplete tooth ring 407 of one side close to filter screen 308 is driven to rotate by rotation sleeve 307 during self-rotation, to make incomplete tooth ring 407 and gear 408 meshing drive magnet bar 403 to roll on the surface of rotation sleeve 307, so that magnet bar 403 can attract the metal particles in the waste residue flocculation that is accumulated outside filter screen 308 to the top, to reduce the difficulty of electroplating wastewater filtering treatment.

[0042] Reference Figure 2 、 Figure 6 、 Figure 7 The surface of fixed rod 303 in the inside of wastewater treatment tank 1 is fixedly sleeved with second bevel gear 305, and the two sides of second bevel gear 305 are meshed with third bevel gear 306 rotationally connected with rotation sleeve 304 in the inside of wastewater treatment tank 1. The end, away from second bevel gear 305, of the two third bevel gears 306 is penetrated through rotation sleeve 304 in the inside of wastewater treatment tank 1 and is fixedly connected with rotation cylinder 307, and half of the surface of rotation cylinder 307 is provided with filter screen 308, to fully stir electroplating wastewater and chemical flocculation reagent, so as to improve the flocculation efficiency of electroplating wastewater and facilitate synchronous filtering.

[0043] Reference Figure 2 、 Figure 3 、 Figure 6 ,Figure 7 、 Figure 8 , both sides of the rotating cylinder 304 inside the wastewater treatment tank 1 are fixedly connected with fixed rods 401, one side of the top of the fixed rod 401 close to the rotating cylinder 307 is rotatably connected with a magnet bar 403, the surface of the magnet bar 403 is wavy and the wavy convex position is close to the filter screen hole 308, one side of the magnet bar 403 away from the fixed rod 401 is fixedly connected with a gear 408, one end of the surface of the rotating cylinder 307 away from the third bevel gear 306 is fixedly connected with an incomplete tooth ring 407, the incomplete tooth ring 407 is installed on half of the surface of the rotating cylinder 307 close to the filter screen hole 308, the top of the magnet bar 403 is provided with a connecting plate 404 fixedly connected with the fixed rod 401, both sides of the connecting plate 404 are installed with trapezoidal scrapers 405 used in cooperation with the magnet bar 403, so that the magnet bar 403 can suck up the metal particles inside the waste residue and flocculating material accumulated outside the filter screen hole 308, thereby reducing the difficulty of electroplating wastewater filtration treatment.

[0044] Reference Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 , one side of the bottom of the fixed rod 401 close to the rotating cylinder 307 is fixedly connected with a screen scraper 402 used in cooperation with the filter screen hole 308, the inside of the rotating cylinder 307 is opened with a drain hole 406, the inner wall of the wastewater treatment tank 1 is slidably connected with a sliding ring 409, the inside of the sliding ring 409 is opened with a connecting hole 411 rotatably penetrating the end of the rotating cylinder 307 away from the third bevel gear 306, the inside of the inner wall of the wastewater treatment tank 1 is provided with a drainage groove 410 communicating with the connecting hole 411 and the drain hole 406, so that the waste residue and flocculating material accumulated outside the filter screen hole 308 can be scraped off, thereby preventing the waste residue and flocculating material from blocking the filtering device.

[0045] Reference Figure 2 , one side of the bottom of the wastewater treatment tank 1 is installed with a second motor 5, the output end of the second motor 5 is fixedly connected with an auger 6 rotatably connected with the wastewater treatment tank 1, one end of the bottom of the wastewater treatment tank 1 close to the heat dissipation net 10 is opened and threadedly connected with a residue discharge valve 7, by starting the second motor 5 to drive the auger 6 to rotate, the waste residue and flocculating material deposited at the bottom of the wastewater treatment tank 1 can be discharged after the residue discharge valve 7 is opened.

[0046] Reference Figure 1 、 Figure 2 , one side of the top of the sealing cover 2 is provided with a feeding port 8, one side of the feeding port 8 is provided with a cover plate 9 hingedly connected with the sealing cover 2, without opening the sealing cover 2, the electroplating wastewater needing to be treated and the chemical flocculating agent can be quickly added into the wastewater treatment tank 1 through the feeding port 8.

[0047] Reference Figure 1 、 Figure 2Both the wastewater treatment tank 1 and the sealing cover 2 are equipped with heat dissipation mesh 10 on the side closest to the second motor 5 and the first motor 301, respectively. This facilitates ventilation and heat dissipation for the heat dissipation mesh 10 and the first motor 301, while reducing the entry of dust and impurities into the interior.

[0048] refer to Figure 2 , Figure 5 The bottom of the fixing rod 303 inside the sealing cover 2 is fixedly connected to a diamond-shaped rod 11 that is inserted into the top of the fixing rod 303 inside the wastewater treatment tank 1. The ends of the rotating cylinders 304 inside the wastewater treatment tank 1 and the sealing cover 2 that are close to each other are respectively fixedly connected to a first docking plate 12 and a second docking plate 13. The bottom of the second docking plate 13 is fixedly connected to an insertion rod 14 that is inserted into the first docking plate 12. By using the diamond-shaped rod 11 to insert the two fixing rods 303 inside the wastewater treatment tank 1 and the sealing cover 2, and by using the insertion rod 14 at the bottom of the second docking plate 13 to slide into the inside of the first docking plate 12, the two rotating cylinders 304 inside the wastewater treatment tank 1 and the sealing cover 2 are inserted. This allows the sealing cover 2 to be quickly removed from the top of the wastewater treatment tank 1 for cleaning. At the same time, simply aligning the fixing rod 303 and the rotating cylinder 304 will drive the rotating cylinder 304 inside the wastewater treatment tank 1 to rotate.

[0049] refer to Figure 6 , Figure 7 The interior of the filter mesh 308 is V-shaped with the smaller opening facing the surface of the rotating cylinder 307. A drain valve 15, which is connected to the inside of the drain trough 410, is fixedly installed on one side of the surface of the wastewater treatment tank 1. This reduces the risk of waste residue flocculation clogging the filter mesh 308 and also facilitates backwashing of the filter mesh 308 to flush out the clogged waste residue flocculation, thus facilitating the filtration of electroplating wastewater.

[0050] refer to Figure 7 Inside the wastewater treatment tank 1, a ball bearing 16 is rotatably connected to the sliding ring 409 on the side close to the sliding ring 409. Inside the connection hole 411, a sealing ring 17 is slidably connected to the end of the rotating cylinder 307 away from the third bevel gear 306. This reduces the friction of the sliding ring 409 sliding inside the wastewater treatment tank 1 and improves the sealing performance, preventing unfiltered electroplating wastewater inside the wastewater treatment tank 1 from seeping into the drainage tank 410.

[0051] Brief description of the use process: by opening the first motor 301 drive first bevel gear 302 rotation and fourth bevel gear 309 meshing to drive rotating cylinder 304 in the inside of wastewater treatment tank 1 rotation, make rotating cylinder 304 surface both ends rotating cylinder 307 can be stirred mixing of electroplating wastewater and flocculating agent in the inside of wastewater treatment tank 1, then through rotating cylinder 304 both ends rotating cylinder 307 through the third bevel gear 306 and second bevel gear 305 meshing, and then make rotating cylinder 307 not only can rotate in the inside of wastewater treatment tank 1, but also can rotate itself, after another end of rotating cylinder 307 through the connecting hole 411 and the drain groove 410 in the inside of wastewater treatment tank 1 communication, make drain groove 410 can discharge the electroplating wastewater after filtering, while the other end of rotating cylinder 307 through the connecting hole 411 in the inside of sliding ring 409 rotation, and sliding ring 409 can be through rotating cylinder 307 in the inside of wastewater treatment tank 1 sliding, prevent the electroplating wastewater without filtering from entering into the inside of drain groove 410, make the electroplating wastewater without filtering can enter into the inside of rotating cylinder 307 to filter the inside waste residue flocculation, and then through rotating cylinder 307 self-rotating process, drive the incomplete tooth ring 407 close to the one side of filter screen hole 308 rotation, so that the incomplete tooth ring 407 and gear 408 meshing to drive the magnet bar 403 rolling on the surface of rotating cylinder 307, make the magnet bar 403 can attract the metal particles in the waste residue flocculation accumulated outside filter screen hole 308, while the trapezoidal scraper 405 on both ends of connecting plate 404 can push the metal particles adsorbed on the surface of magnet bar 403 to the wave-shaped recess, make the wave-shaped convex of magnet bar 403 not accumulate metal particles, so that the magnet bar 403 can adsorb more metal particles, after filter screen hole 308 again through screen hole scraper 402, screen hole scraper 402 can scrape off the waste residue flocculation accumulated outside filter screen hole 308, prevent the waste residue flocculation from blocking gear 408.

[0052] The specific embodiment is only an explanation of the application, which is not a limitation of the application, and those skilled in the art can make modifications to the embodiment without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the application, it is protected by the patent law.

Claims

1. A waste residue filtering treatment device for electroplating wastewater, comprising a wastewater treatment tank (1), characterized in that: The top of the wastewater treatment tank (1) is bolted with a sealing cover (2), the bottom of the sealing cover (2) and the inside of the wastewater treatment tank (1) are fixedly connected with first fixed rods (303), the bottom of the sealing cover (2) and the inside of the wastewater treatment tank (1) are provided with rotating cylinder rods (304) penetrating the surface of the two first fixed rods (303) and rotatingly connected, one side of the inside of the sealing cover (2) is provided with a first motor (301), the output end of the first motor (301) is fixedly connected with a first bevel gear (302) rotatingly connected with the sealing cover (2), the top of the rotating cylinder rod (304) in the inside of the sealing cover (2) is fixedly connected with a fourth bevel gear (309) meshing with the first bevel gear (302); the surface of the first fixed rod (303) in the inside of the wastewater treatment tank (1) is fixedly sleeved with a second bevel gear (305), the two sides of the second bevel gear (305) are meshed with third bevel gears (306) rotatingly connected with the rotating cylinder rod (304) in the inside of the wastewater treatment tank (1), the ends of the two third bevel gears (306) away from the second bevel gear (305) penetrate the rotating cylinder rod (304) in the inside of the wastewater treatment tank (1) and are fixedly connected with rotating cylinders (307), half of the surface of the rotating cylinder (307) is provided with filter screen holes (308); the two sides of the rotating cylinder rod (304) in the inside of the wastewater treatment tank (1) are fixedly connected with second fixed rods (401), one side of the top of the second fixed rod (401) near the rotating cylinder (307) is rotatingly connected with a magnet rod (403), the surface of the magnet rod (403) is wavy and the wavy convex position is near the filter screen hole (308), one side of the magnet rod (403) away from the second fixed rod (401) is fixedly connected with a gear (408), one end of the surface of the rotating cylinder (307) away from the third bevel gear (306) is fixedly connected with an incomplete tooth ring (407), the incomplete tooth ring (407) is installed on half of the surface of the rotating cylinder (307) near the filter screen hole (308), the top of the magnet rod (403) is provided with a connecting plate (404) fixedly connected with the second fixed rod (401), the two sides of the connecting plate (404) are installed with trapezoidal scrapers (405) used in cooperation with the magnet rod (403); one side of the bottom of the second fixed rod (401) near the rotating cylinder (307) is fixedly connected with a screen hole scraper (402) used in cooperation with the filter screen hole (308), the inside of the rotating cylinder (307) is provided with a drainage hole (406), the inner wall of the wastewater treatment tank (1) is slidingly connected with a sliding ring (409), the inside of the sliding ring (409) is provided with a connecting hole (411) penetrating and rotatingly connected with one end of the rotating cylinder (307) away from the third bevel gear (306), the inside of the inner wall of the wastewater treatment tank (1) is provided with a drainage groove (410) communicating with the connecting hole (411) and the drainage hole (406).

2. The device for filtering and treating the waste residue of electroplating wastewater according to claim 1, characterized in that: The bottom of the wastewater treatment tank (1) is provided with a second motor (5) on one side, and the output end of the second motor (5) is fixedly connected with a screw auger (6) rotatably connected with the wastewater treatment tank (1), and the bottom of the wastewater treatment tank (1) is provided with a slag discharge valve (7) on one end close to the second motor (5).

3. The device for filtering and treating the waste residue of electroplating wastewater according to claim 1, characterized in that: The top of the sealing cover (2) is provided with a feeding port (8) on one side, and the feeding port (8) is provided with a cover plate (9) hingedly connected with the sealing cover (2).

4. The device for filtering and treating the waste residue of electroplating wastewater according to claim 2, characterized in that: The wastewater treatment tank (1) and the sealing cover (2) are respectively provided with a heat dissipation net (10) fixedly installed on one side close to the second motor (5) and the first motor (301).

5. The device for filtering and treating the waste residue of electroplating wastewater according to claim 1, characterized in that: The bottom of the first fixed rod (303) inside the sealing cover (2) is fixedly connected with a rhombic rod (11) inserted into the top of the first fixed rod (303) inside the wastewater treatment tank (1), and the ends of the rotating cylinder rods (304) inside the wastewater treatment tank (1) and the sealing cover (2) close to each other are respectively fixedly connected with a first butt joint disc (12) and a second butt joint disc (13), and the bottom of the second butt joint disc (13) is fixedly connected with an insertion rod (14) inserted into the inside of the first butt joint disc (12).

6. The device for filtering and treating the waste residue of electroplating wastewater according to claim 1, characterized in that: The inside of the filter screen hole (308) is "V" shaped, and the small opening end faces the surface of the rotating cylinder (307), and the surface of the wastewater treatment tank (1) is fixedly installed with a drain valve (15) in communication with the inside of the drain groove (410).

7. The device for filtering and treating the waste residue of electroplating wastewater according to claim 1, characterized in that: The inside of the connecting hole (411) is adhered with a sealing ring (17) slidably connected with the rotating cylinder (307) away from the third bevel gear (306).

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