Electroplating sewage treatment equipment adopting flow guide plate for layered mixing

Abstract

The invention relates to the technical field of sewage treatment, in particular to electroplating sewage treatment equipment adopting guide plates for layered mixing, which comprises a coagulating sedimentation mechanism, and the coagulating sedimentation mechanism comprises a coagulating basin, a flocculation basin and a sedimentation basin which are sequentially connected from left to right; the mixing mechanism comprises a plurality of flow guide plates which are rotationally mounted in the coagulating basin and are distributed up and down; and a wadding removing mechanism. When moving to the top of the circulating cylinder, the flocculating constituent is filtered by using the filter cover, so that the flocculating constituent is gathered at the top of the circulating cylinder, then the flocculating constituent is conveyed to the discharging slide way by using the spiral plate, and mixed raw water is discharged downwards from the water leakage hole in the bottom of the discharging slide way. And the flocculating constituent is pushed by the material pushing plate to be rightwards conveyed into the sedimentation tank along the material discharging slide way, so that the flocculating constituent is conveniently separated from raw water in the flocculation tank in time, the flocculating constituent is prevented from circularly flowing in the flocculation tank, the diffusion of the medicament is prevented from being influenced, and the use effect of the medicament is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an electroplating wastewater treatment device that employs a flow guide plate for layered mixing. Background Technology

[0002] Electroplating wastewater is complex in quality and its composition is difficult to control. It contains heavy metal ions such as chromium, cadmium, nickel, copper, zinc, gold, and silver, as well as cyanides, some of which are highly toxic substances that are carcinogenic, teratogenic, and mutagenic. Therefore, electroplating wastewater must be carefully recycled and treated to eliminate or reduce its pollution to the environment.

[0003] Coagulation and sedimentation equipment is a common type of wastewater treatment equipment, generally consisting of a coagulation tank, a flocculation tank, and a sedimentation tank. Wastewater passes through these tanks sequentially. Coagulants and flocculants are added to the coagulation and flocculation tanks respectively to react with the wastewater. Existing flocculation tanks typically include a circulating stirring mechanism to aid in the mixing of the flocculant and wastewater. During mixing, the flocculant promotes the aggregation of suspended particles in the water to form flocs, accelerating sedimentation and separation. However, since the flocculation tank is primarily used to mix the flocculant and raw water, the flocs formed in the flocculation tank, along with the circulating raw water, affect the diffusion of the flocculant. Furthermore, as the number of flocs increases, the diffusion rate of the flocculant and its mixing rate with the raw water are further affected, thus impacting the effectiveness of the flocculant. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an electroplating wastewater treatment device employing a flow guide plate for layered mixing, comprising a coagulation and sedimentation mechanism, wherein the coagulation and sedimentation mechanism includes a coagulation tank, a flocculation tank, and a sedimentation tank connected sequentially from left to right.

[0005] The mixing mechanism includes several guide plates rotatably installed inside the coagulation tank and distributed vertically. A swing assembly for driving the guide plates to swing forward and backward is installed on the front side of the coagulation tank. The inclination directions of two adjacent guide plates are opposite. The guide plates are provided with symmetrical discharge ports. A baffle plate for controlling the opening and closing of the discharge port is hinged to the side of the discharge port away from the center of the guide plate.

[0006] The deflocculation mechanism includes a circulation cylinder fixedly installed inside the flocculation tank. A stirring rod is rotatably installed at the central axis of the circulation cylinder to push the liquid inside the circulation cylinder upward. A filter cover is fixedly installed on the top of the circulation cylinder. A spiral plate located inside the filter cover is installed on the stirring rod. A discharge slide is installed on the right side of the filter cover. A pusher plate and a reciprocating moving component are installed on the discharge slide to push the flocs from left to right.

[0007] In one possible implementation, the bottoms of the coagulation tank and the flocculation tank are connected, the tops of the flocculation tank and the sedimentation tank are connected, a raw water pipe is fixedly installed on the left side of the coagulation tank, and dosing pipes are installed on the tops of both the coagulation tank and the flocculation tank.

[0008] In one possible implementation, the oscillating assembly includes a drive motor fixedly mounted on the front side of the coagulation tank, a turntable fixedly mounted on the rear side of the output shaft of the drive motor, a push rod not coaxial with the turntable rotatably connected to the rear side of the turntable, a swing arm located in front of the coagulation tank mounted on the front side of one of the guide plates, the swing arm having an elongated hole, and the push rod slidingly connected to the elongated hole.

[0009] In one possible implementation, a transmission gear located behind the coagulation tank is fixedly installed on the rear side of the guide plate, with two adjacent transmission gears meshing together, and several converging nozzles distributed front and back are fixedly installed at the bottom of the discharge port.

[0010] In one possible implementation, short rods are fixedly connected to both the front and rear sides of the baffle plate, and inclined grooves corresponding to the short rods are opened on the front and rear inner walls of the coagulation tank, with the short rods slidably installed in the corresponding inclined grooves.

[0011] In one possible implementation, the top of the guide plate is provided with a grid-like guide groove, a spherical sleeve is rotatably mounted on the guide plate, a stirring rod is rotatably mounted inside the coagulation tank, the stirring rod rotates through the spherical sleeve, and a second drive motor for driving the stirring rod to rotate is installed at the top of the coagulation tank, the top of the stirring rod being connected to the bottom of the output shaft of the second drive motor via a coupling.

[0012] In one possible implementation, the left end of the discharge chute is connected to the top of the filter cover, the bottom of the discharge chute has several drainage holes, and the right end of the discharge chute extends above the sedimentation tank.

[0013] In one possible implementation, the reciprocating moving assembly includes movable plates that are slidably mounted on both the front and rear sidewalls of the discharge slide. The discharge slide is slidably mounted between the two movable plates. A pull rope is fixedly connected to the left end of each movable plate. The end of the pull rope away from the movable plate slides through the sidewall between the coagulation tank and the flocculation tank and is fixedly connected to the uppermost guide plate. A tension spring is fixedly connected between the right end of the movable plate and the right end of the discharge slide. Guide units for guiding the pusher plate to adjust up and down are installed on both the front and rear sidewalls of the discharge slide.

[0014] In one possible implementation, the guiding unit includes a guide groove 1 and a guide groove 2 formed on the side wall of the discharge slide. The guide groove 1 is L-shaped. The left end of the guide groove 2 is connected to the top of the vertical section of the guide groove 1, and the right end of the guide groove 2 is connected to the top of the horizontal section of the guide groove 1. The right end of the guide groove 1 is located to the right of the right end of the guide groove 2. A partition plate is hinged to the right end of the guide groove 2. The right end of the partition plate is inclined downward and contacts the bottom of the guide groove 1. Guide blocks are installed on both the front and rear sides of the pusher plate. The guide blocks slide in cooperation with the guide groove 1 and the guide groove 2.

[0015] The beneficial effects of this invention are as follows: 1. When the flocs move to the top of the circulating cylinder, the filter cover filters the flocs, causing them to collect at the top of the circulating cylinder. Then, the spiral plate transports the flocs to the discharge chute. The mixed raw water is discharged downwards from the drain hole at the bottom of the discharge chute, while the flocs are pushed to the right along the discharge chute by the pusher plate and transported to the sedimentation tank. This facilitates timely separation of the flocs from the raw water in the flocculation tank, preventing the flocs from circulating in the flocculation tank. This allows the flocs to settle in the sedimentation tank, avoiding affecting the diffusion of the reagents and improving the effectiveness of the reagents.

[0016] 2. This invention guides the flow of raw water and coagulant by setting up multiple layers of guide plates. When the liquid on the upper guide plate flows to the discharge port, it falls onto the lower guide plate. Since there are multiple guide plates distributed vertically, the guide plates can be driven to swing back and forth in both directions by the swinging component, which can continuously change the tilt direction of the guide plates, thereby controlling the direction and speed of the flow of raw water and coagulant. This causes the raw water to turn and collide multiple times, disrupting the original flow field, forcibly creating turbulence and diffusion, so that the raw water and coagulant are mixed evenly, thereby improving the mixing effect of raw water and coagulant.

[0017] 3. This invention controls the opening and closing of the discharge port by setting a baffle plate. When the guide plate swings left and right, the baffle plate can control the opening or closing of the corresponding discharge port according to the different swing height of one side of the guide plate. In this way, the raw water falling from the upper guide plate can smoothly fall into the lower guide plate through the discharge port. At the same time, the baffle plate in the open state can also play a role in blocking water, preventing the fast-flowing raw water from flowing out of the outside of the guide plate through the discharge port. When the raw water hits the baffle plate, it can further increase the disturbance and improve the mixing effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the first angle of the present invention.

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the second angle of the present invention.

[0020] Figure 3 This is a cross-sectional view of the front of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the guide plate of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the inclined groove of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the swing component of the present invention.

[0024] Figure 7 This is a partial cross-sectional view of the circulation cylinder of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the pusher plate of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the pull rope of the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram of the guiding unit of the present invention.

[0028] In the diagram: 1. Coagulation and sedimentation mechanism; 11. Coagulation tank; 12. Flocculation tank; 13. Sedimentation tank; 14. Raw water pipe; 15. Dosing pipe; 2. Mixing mechanism; 21. Guide plate; 211. Guide channel; 212. Spherical sleeve; 22. Transmission gear; 23. Swing assembly; 231. Drive motor one; 232. Turntable; 233. Push rod; 234. Swing arm; 235. Oblong hole; 24. Discharge port; 25. Baffle plate; 251. Short rod; 252. Inclined pull channel; 26. Manifold; 27. Stirring rod one; 28. Drive motor two; 3. De-flocculant mechanism; 31. Circulation cylinder; 32. Stirring rod two; 33. Filter cover; 34. Spiral plate; 35. Discharge chute; 36. Pusher plate; 37. Reciprocating moving assembly; 371. Movable plate; 372. Pull rope; 373. Tension spring; 374. Guide unit; 3741. Guide groove one; 3742. Guide groove two; 3743. Divider plate; 375. Guide block; 38. Drive motor three. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Please see Figure 1 — Figure 10A wastewater treatment device for electroplating using a flow guide plate for stratified mixing includes a coagulation and sedimentation mechanism 1, which includes a coagulation tank 11, a flocculation tank 12, and a sedimentation tank 13 connected sequentially from left to right.

[0031] The mixing mechanism 2 includes several guide plates 21 that are rotatably installed inside the coagulation tank 11 and distributed vertically. The inclination directions of two adjacent guide plates 21 are opposite. A swing assembly 23 for driving the guide plates 21 to swing in the forward and reverse directions is installed on the front side of the coagulation tank 11. The guide plates 21 are provided with symmetrical discharge ports 24. A baffle plate 25 for controlling the opening and closing of the discharge port 24 is hinged to the side of the discharge port 24 away from the center of the guide plate 21.

[0032] The deflocculation mechanism 3 includes a circulation cylinder 31 fixedly installed inside the flocculation tank 12. A stirring rod 32 for pushing the liquid inside the circulation cylinder 31 upward is rotatably installed at the central axis of the circulation cylinder 31. A filter cover 33 is fixedly installed on the top of the circulation cylinder 31. A spiral plate 34 located inside the filter cover 33 is installed on the stirring rod 32. A discharge slide 35 is installed on the right side of the filter cover 33. A pusher plate 36 for pushing the flocs to move from left to right and a reciprocating moving assembly 37 are installed on the discharge slide 35.

[0033] In practical use, raw water and coagulant are discharged into the coagulation tank 11. The raw water and coagulant fall onto the uppermost guide plate 21, causing the raw water and coagulant to flow along the surface of the guide plate 21. When the liquid on the upper guide plate 21 flows to the discharge port 24, it falls onto the lower guide plate 21. Since there are multiple guide plates 21 distributed vertically, the guide plates 21 are driven to swing back and forth in opposite directions by the swing component 23. This can continuously change the tilt direction of the guide plates 21, thereby controlling the direction and speed of the flow of raw water and coagulant. This causes the raw water to turn and collide multiple times, disrupting the original flow field, forcibly creating turbulence and diffusion, so that the raw water and coagulant are mixed evenly, improving the mixing effect of raw water and coagulant.

[0034] The opening and closing of the discharge port 24 is controlled by setting the baffle plate 25. When the guide plate 21 rotates clockwise, the left end of the guide plate 21 rises and the right end falls, and the raw water on the guide plate 21 flows from left to right. At this time, the left baffle plate 25 rotates clockwise relative to the guide plate 21 and closes the left discharge port 24 to prevent the falling raw water from falling from the left discharge port 24. At the same time, the right baffle plate 25 rotates clockwise relative to the guide plate 21 and opens the right discharge port 24, allowing the raw water flowing to the right to flow from the right... The raw water falls from the discharge port 24 on the side. Because the guide plates 21 are distributed vertically, the raw water falling from the upper guide plate 21 can smoothly fall onto the lower guide plate 21. This allows the raw water to be guided multiple times by the guide plates 21, forcing the fluid to turn and collide multiple times. At the same time, the baffle plate 25 in the open state can also block the water, preventing the fast-flowing raw water from flowing out of the outside of the guide plate 21 through the discharge port 24. When the raw water hits the baffle plate 25, it can further increase the disturbance and improve the mixing effect.

[0035] The raw water, after initial mixing in the coagulation tank 11, flows into the flocculation tank 12. At this time, the flocculant is discharged into the flocculation tank 12. The stirring rod 32 pushes the raw water in the circulation cylinder 31 to flow upward. After flowing out from the top of the circulation cylinder 31, the raw water flows downward from the outside of the circulation cylinder 31 and finally flows back into the circulation cylinder 31 from the bottom. This allows the raw water in the flocculation tank 12 to circulate, improving the mixing effect of the raw water and the flocculant. As the amount of raw water in the flocculation tank 12 increases, some of the raw water mixed with flocculant overflows into the sedimentation tank 13.

[0036] When flocs are generated in the flocculation tank 12, they circulate with the water flow. When the flocs move to the top of the circulation cylinder 31, they are filtered by the filter cover 33, causing them to collect at the top of the circulation cylinder 31. At this time, the stirring rod 32 drives the spiral plate 34 to rotate, causing the spiral plate 34 to transport the flocs upward. When they reach the top of the filter cover 33, centrifugal force transports the flocs to the discharge slide 35, separating the flocs from the raw water. Finally, the pusher plate 36 pushes the flocs to the right, transporting them to the sedimentation tank 13, where the flocs adsorb and precipitate pollutants, preventing the flocs in the flocculation tank 12 from affecting the diffusion of the flocculant in the raw water.

[0037] Please see Figure 1 — Figure 3 The bottoms of the coagulation tank 11 and the flocculation tank 12 are connected, and the tops of the flocculation tank 12 and the sedimentation tank 13 are connected. A raw water pipe 14 is fixedly installed on the left side of the coagulation tank 11, and a dosing pipe 15 is installed on the top of both the coagulation tank 11 and the flocculation tank 12.

[0038] In practical use, raw water is transported to coagulation tank 11 through raw water pipe 14. Coagulant and flocculant are discharged into coagulation tank 11 and flocculation tank 12 respectively through dosing pipes 15 on coagulation tank 11 and flocculation tank 12. After the raw water is mixed with the coagulant in coagulation tank 11, it enters flocculation tank 12, where it is mixed with the flocculant again, and finally flows into sedimentation tank 13 for sedimentation.

[0039] Please see Figure 1 and Figure 6 The swing assembly 23 includes a drive motor 231 fixedly installed on the front side of the coagulation tank 11. A turntable 232 is fixedly installed on the rear side of the output shaft of the drive motor 231. A push rod 233 that is not coaxial with the turntable 232 is rotatably connected to the rear side of the turntable 232. A swing arm 234 located in front of the coagulation tank 11 is installed on the front side of one of the guide plates 21. An elongated hole 235 is opened on the swing arm 234. The push rod 233 is slidably connected to the elongated hole 235.

[0040] Please see Figure 2 , Figure 3 and Figure 4 A transmission gear 22 located behind the coagulation tank 11 is fixedly installed on the rear side of the guide plate 21. Two adjacent transmission gears 22 mesh with each other. Several converging nozzles 26 distributed in the front and back are fixedly installed at the bottom of the discharge port 24.

[0041] In practical use, the drive motor 231 drives the turntable 232 and push rod 233 to rotate. The push rod 233 pushes the swing arm 234 to swing left and right. The swing arm 234 drives the guide plate 21 connected to it to swing left and right. The guide plate 21 drives other guide plates 21 to swing left and right through the transmission gear 22. This continuously changes the speed and direction of the raw water flow on the surface of the guide plate 21, forcing the fluid to turn and collide multiple times, thus improving the mixing effect. When the raw water is discharged from the discharge port 24, the converging nozzle 26 can collect the raw water, so that when the raw water flows on multiple guide plates 21, it can be continuously divided, disturbed, and merged to achieve overall uniform mixing.

[0042] Please see Figure 3 , Figure 4 and Figure 5 Short rods 251 are fixedly connected to both the front and rear sides of the baffle plate 25. Inclined grooves 252 corresponding to the short rods 251 are opened on the front and rear inner walls of the coagulation tank 11. The short rods 251 are slidably installed in the corresponding inclined grooves 252.

[0043] In practical use, when the guide plate 21 is in a horizontal state, the inclined groove 252 is located above the corresponding guide plate 21. When the guide plate 21 swings, as the baffle 25 on the rising side of the guide plate 21 gradually approaches the inclined groove 252, the baffle 25 on the rising side will gradually cover the corresponding discharge port 24 under the push of the inclined groove 252. At the same time, the baffle 25 on the falling side of the guide plate 21 gradually moves away from the inclined groove 252, and the baffle 25 on the falling side will gradually open under the pull of the inclined groove 252. When one side of the guide plate 21 rises to the maximum extent, the baffle 25 just completely covers the corresponding discharge port 24. When one side of the guide plate 21 falls to the maximum extent, the baffle 25 opens to the maximum angle.

[0044] Please see Figure 1 , Figure 3 and Figure 4 The top of the guide plate 21 is provided with a grid-shaped guide groove 211. A spherical sleeve 212 is rotatably installed on the guide plate 21. A stirring rod 27 is rotatably installed inside the coagulation tank 11. The stirring rod 27 rotates through the spherical sleeve 212. A drive motor 28 for driving the stirring rod 27 to rotate is installed on the top of the coagulation tank 11. The top of the stirring rod 27 is connected to the bottom of the output shaft of the drive motor 28 through a coupling.

[0045] In practical use, when the raw water flows at the top of the guide plate 21, the guide channel 211 guides the raw water, which can continuously split and merge the raw water. Each split and merge will increase the disturbance of the raw water and improve the mixing effect of the raw water and coagulant. The drive motor 28 drives the stirring rod 27 to rotate, which can stir the raw water and promote the mixing of the raw water. When the stirring rod 27 rotates inside the spherical sleeve 212, the guide plate 21 can swing outside the spherical sleeve 212 to avoid mutual interference between the two.

[0046] Please see Figure 3 and Figure 7 The left end of the discharge slide 35 is connected to the top of the filter cover 33. Several drainage holes are opened at the bottom of the discharge slide 35. The right end of the discharge slide 35 extends to the top of the sedimentation tank 13. The top of the flocculation tank 12 is equipped with a drive motor 38 for driving the stirring rod 32 to rotate. The bottom end of the output shaft of the drive motor 38 is connected to the top end of the stirring rod 32 through a coupling.

[0047] In practical use, the driving motor 38 drives the stirring rod 32 to rotate, which stirs the raw water and pushes it upward. When the spiral plate 34 conveys the flocculants to the discharge slide 35, the mixed raw water will be discharged downward from the drain hole at the bottom of the discharge slide 35, while the flocculants will be pushed by the pusher plate 36 and conveyed to the right along the discharge slide 35 into the sedimentation tank 13. This facilitates timely separation of the flocculants from the raw water in the flocculation tank 12, preventing the flocculants from circulating in the flocculation tank 12 and allowing the flocculants to settle in the sedimentation tank 13.

[0048] Please see Figure 7 — Figure 10 The reciprocating moving component 37 includes movable plates 371 that are slidably installed on the front and rear side walls of the discharge slide 35. The discharge slide 35 is slidably installed between the two movable plates 371. A pull rope 372 is fixedly connected to the left end of the movable plate 371. The end of the pull rope 372 away from the movable plate 371 slides through the side wall between the coagulation tank 11 and the flocculation tank 12 and is fixedly connected to the uppermost guide plate 21. A tension spring 373 is fixedly connected between the right end of the movable plate 371 and the right end of the discharge slide 35. Guide units 374 for guiding the pusher plate 36 to adjust up and down are installed on the front and rear side walls of the discharge slide 35.

[0049] Please see Figure 8 and Figure 10 The guiding unit 374 includes a first guide groove 3741 and a second guide groove 3742 formed on the side wall of the discharge slide 35. The first guide groove 3741 is L-shaped. The left end of the second guide groove 3742 is connected to the top of the vertical section of the first guide groove 3741, and the right end of the second guide groove 3742 is connected to the top of the horizontal section of the first guide groove 3741. The right end of the first guide groove 3741 is located to the right of the right end of the second guide groove 3742. A partition plate 3743 is hinged to the right end of the second guide groove 3742. The right end of the partition plate 3743 is inclined downward and contacts the bottom of the first guide groove 3741.

[0050] In practical use, when the right side of the uppermost guide plate 21 swings downward, the guide plate 21 pulls the movable plate 371 to the left via the pull rope 372. At this time, the tension spring 373 is stretched. When the right side of the uppermost guide plate 21 swings upward, the pull rope 372 is released. At this time, the elastic force of the tension spring 373 drives the movable plate 371 to move to the right, and the movable plate 371 drives the pusher plate 36 to move back and forth left and right.

[0051] When the pusher plate 36 moves to the right, the guide block 375 moves to the right along the horizontal section of the guide groove 3741. At this time, the pusher plate 36 slides to the right along the bottom wall of the discharge slide 35, using the pusher plate 36 to push the flocculants on the discharge slide 35 to the right, so as to facilitate the transport of the flocculants to the sedimentation tank 13. When the guide block 375 moves to the bottom of the partition plate 3743, the guide block 375 can push the partition plate 3743 open, so that the guide block 375 can move to the rightmost end of the horizontal section of the guide groove 3741. When the guide block 375 leaves the bottom of the partition plate 3743, the partition plate 3743 will fall under its own gravity.

[0052] Then the pusher plate 36 moves to the left. When the guide block 375 moves to the partition plate 3743, the guide block 375 will slide obliquely upward along the partition plate 3743 into the guide groove 3742. The guide groove 3742 guides the pusher plate 36 to move upward, so that the pusher plate 36 separates from the bottom wall of the discharge slide 35, preventing the pusher plate 36 from pushing the flocculants to the left. When the guide block 375 moves to the leftmost end of the guide groove 3742, the pusher plate 36 falls under its own weight, so that the guide block 375 falls down along the vertical section of the guide groove 3741 into the horizontal section of the guide groove 3741, which makes it easier for the pusher plate 36 to push the flocculants to the right.

[0053] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A wastewater treatment device for electroplating using a flow guide plate for layered mixing, characterized in that, include: The coagulation and sedimentation mechanism (1) includes a coagulation tank (11), a flocculation tank (12) and a sedimentation tank (13) connected from left to right. The mixing mechanism (2) includes several guide plates (21) that are rotatably installed inside the coagulation tank (11) and distributed vertically. The front side of the coagulation tank (11) is equipped with a swing assembly (23) for driving the guide plates (21) to swing in the forward and reverse directions. The inclination directions of two adjacent guide plates (21) are opposite. The guide plates (21) are provided with symmetrical discharge ports (24). A baffle plate (25) for controlling the opening and closing of the discharge port (24) is hinged to the side of the discharge port (24) away from the center of the guide plate (21). The deflocculation mechanism (3) includes a circulation cylinder (31) fixedly installed inside the flocculation tank (12). A stirring rod (32) for pushing the liquid inside the circulation cylinder (31) upward is rotatably installed at the central axis of the circulation cylinder (31). A filter cover (33) is fixedly installed on the top of the circulation cylinder (31). A spiral plate (34) located inside the filter cover (33) is installed on the stirring rod (32). A discharge slide (35) is installed on the right side of the filter cover (33). A pusher plate (36) for pushing the flocs to move from left to right and a reciprocating moving component (37) are installed on the discharge slide (35).

2. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 1, characterized in that: The bottoms of the coagulation tank (11) and the flocculation tank (12) are connected, the tops of the flocculation tank (12) and the sedimentation tank (13) are connected, a raw water pipe (14) is fixedly installed on the left side of the coagulation tank (11), and a dosing pipe (15) is installed on the top of both the coagulation tank (11) and the flocculation tank (12).

3. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 1, characterized in that: The swing assembly (23) includes a drive motor (231) fixedly installed on the front side of the coagulation tank (11). A turntable (232) is fixedly installed on the rear side of the output shaft of the drive motor (231). A push rod (233) that is not coaxial with the turntable (232) is rotatably connected to the rear side of the turntable (232). A swing arm (234) located in front of the coagulation tank (11) is installed on the front side of one of the guide plates (21). An elongated hole (235) is opened on the swing arm (234). The push rod (233) is slidably connected to the elongated hole (235).

4. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 3, characterized in that: The guide plate (21) is fixedly installed with a transmission gear (22) located behind the coagulation tank (11). Two adjacent transmission gears (22) mesh with each other. The bottom of the discharge port (24) is fixedly installed with several converging nozzles (26) distributed in front and behind.

5. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 1, characterized in that: Short rods (251) are fixedly connected to both the front and rear sides of the baffle plate (25). The front and rear inner walls of the coagulation tank (11) are provided with inclined grooves (252) corresponding to the short rods (251). The short rods (251) are slidably installed in the corresponding inclined grooves (252).

6. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 1, characterized in that: The top of the guide plate (21) is provided with a grid-shaped guide groove (211). A spherical sleeve (212) is rotatably installed on the guide plate (21). A stirring rod (27) is rotatably installed inside the coagulation tank (11). The stirring rod (27) rotatably passes through the spherical sleeve (212). A second drive motor (28) for driving the stirring rod (27) to rotate is installed on the top of the coagulation tank (11). The top of the stirring rod (27) is connected to the bottom of the output shaft of the second drive motor (28) through a coupling.

7. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 1, characterized in that: The left end of the discharge chute (35) is connected to the top of the filter cover (33), and the bottom of the discharge chute (35) is provided with several water leakage holes. The right end of the discharge chute (35) extends to the top of the sedimentation tank (13).

8. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 1, characterized in that: The reciprocating moving component (37) includes movable plates (371) that are slidably installed on the front and rear side walls of the discharge slide (35). The discharge slide (35) is slidably installed between the two movable plates (371). A pull rope (372) is fixedly connected to the left end of the movable plate (371). The end of the pull rope (372) away from the movable plate (371) slides through the side wall between the coagulation tank (11) and the flocculation tank (12) and is fixedly connected to the uppermost guide plate (21). A tension spring (373) is fixedly connected between the right end of the movable plate (371) and the right end of the discharge slide (35). A guide unit (374) for guiding the pusher plate (36) to adjust up and down is installed on the front and rear side walls of the discharge slide (35).

9. The electroplating wastewater treatment equipment using a flow guide plate for layered mixing according to claim 8, characterized in that: The guiding unit (374) includes a guide groove one (3741) and a guide groove two (3742) formed on the side wall of the discharge slide (35). The guide groove one (3741) is L-shaped. The left end of the guide groove two (3742) is connected to the top of the vertical section of the guide groove one (3741), and the right end of the guide groove two (3742) is connected to the top of the horizontal section of the guide groove one (3741). The guide groove one (3741)... The right end is located on the right side of the right end of the guide groove two (3742). The right end of the guide groove two (3742) is hinged with a partition plate (3743). The right end of the partition plate (3743) is inclined downward and contacts the bottom of the guide groove one (3741). The front and rear sides of the pusher plate (36) are equipped with guide blocks (375). The guide blocks (375) slide with the guide groove one (3741) and the guide groove two (3742).

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