Electroplating wastewater treatment device

Abstract

The utility model relates to an electroplating wastewater treatment device, and relates to the technical field of electroplating wastewater treatment. The device comprises a waste water tank, a feeding pipe and a stirring assembly, the side wall of the waste water tank is communicated with a water inlet pipe and a water outlet pipe, a rotating rod is vertically arranged in the waste water tank, a motor is arranged on the top wall of the waste water tank, the output end of the motor is coaxially fixed to the top end of the rotating rod and used for driving the rotating rod to rotate, and the feeding pipe is arranged on the top wall of the waste water tank. The feeding pipe is communicated with the waste water tank, a rotating disc used for blocking the feeding pipe is arranged in the waste water tank, the rotating disc coaxially sleeves a rotating rod, the rotating disc is fixed to the rotating rod, a discharging opening is formed in the rotating disc in a penetrating mode, the discharging opening can be communicated with the feeding pipe, and the stirring assembly is arranged on the rotating disc. The device has the effect that the electroplating wastewater can be fully mixed with the flocculating agent.

Description

Technical Field

[0001] This application relates to the field of electroplating wastewater treatment, and in particular to an electroplating wastewater treatment device. Background Technology

[0002] The wastewater generated in electroplating production has a very complex composition. In addition to cyanide and acids and alkalis, heavy metals are a category of wastewater with extremely high potential hazards in the electroplating industry. These substances seriously endanger the environment and human health, so treatment equipment is needed to treat the wastewater discharged from electroplating production.

[0003] Among related technologies, Chinese patent CN216038790U discloses a flocculation device for purifying electroplating wastewater. The device features an open, hollowed-out feeding box. After the flocculant is placed into the open feeding box, it drains directly through the holes. A rodless cylinder drives the open feeding box to reciprocate left and right. The rotation of a first motor drives the open feeding box to rotate, thereby ensuring that the flocculant is evenly added and improving the flocculation efficiency. In conjunction with a second motor driving the stirring shaft to rotate, the flocculation efficiency is further improved.

[0004] The method of allowing flocculant to leak directly through the perforation results in a large amount of flocculant entering the electroplating wastewater at once. This makes it difficult for the electroplating wastewater and flocculant to mix evenly, and easily leads to flocculant clumping. Therefore, this method needs to be improved. Utility Model Content

[0005] To address the problem of insufficient and uneven mixing caused by excessive flocculant being added to electroplating wastewater at one time, this application provides an electroplating wastewater treatment device.

[0006] The electroplating wastewater treatment device provided in this application adopts the following technical solution:

[0007] An electroplating wastewater treatment device includes a wastewater tank, a feeding pipe, and a stirring assembly. An inlet pipe and an outlet pipe are connected to the side wall of the wastewater tank. A rotating rod is installed in the wastewater tank, and the rotating rod is vertically arranged. A motor is installed on the top wall of the wastewater tank, and the output end of the motor is coaxially fixed to the top end of the rotating rod to drive the rotating rod to rotate. The feeding pipe is located on the top wall of the wastewater tank and is connected to the wastewater tank. A rotating disk for sealing the feeding pipe is installed inside the wastewater tank. The rotating disk is coaxially sleeved on the rotating rod and fixed to the rotating rod. A discharge port is formed through the rotating disk and can communicate with the feeding pipe. The stirring assembly is located on the rotating disk.

[0008] By adopting the above technical solution, in the initial state, the rotating disc blocks the bottom opening of the feeding pipe, preventing the feeding pipe from connecting with the wastewater tank. During use, electroplating wastewater is introduced into the wastewater tank through the inlet pipe, followed by the addition of flocculant into the feeding pipe. The motor is then started, driving the rotating rod to rotate, causing the rotating disc to rotate synchronously. When the outlet on the rotating disc aligns with the feeding pipe, the feeding pipe connects to the wastewater tank through the outlet, allowing the flocculant in the feeding pipe to fall into the electroplating wastewater in the wastewater tank. Simultaneously, the rotation of the rotating disc also moves the stirring component, causing it to agitate the electroplating wastewater and mix it with the flocculant.

[0009] During this process, the rotating rod and rotating disk rotate continuously, and the flocculant is only added when the discharge port moves to the feeding pipe, so as to achieve intermittent feeding and add the flocculant to the electroplating wastewater in small amounts and multiple times, which facilitates the thorough mixing of electroplating wastewater and flocculant.

[0010] Optionally, the stirring assembly includes a plurality of stirring rods and a plurality of stirring plates. The stirring rods are parallel to the rotating rods, the top ends of the stirring rods are connected to the rotating disk, the rotating rods are located between the plurality of stirring rods, and the plurality of stirring plates are fixed on the stirring rods and arranged at intervals along the length of the stirring rods.

[0011] By adopting the above technical solution, when the rotating rod drives the rotating disk to rotate, several stirring rods move continuously around the rotating rod to agitate the electroplating wastewater. The stirring plate on the stirring rod can expand the stirring range, so that the electroplating wastewater and the subsequently added flocculant are mixed more thoroughly and evenly.

[0012] Optionally, the top end of the stirring rod is rotatably connected to the rotating disk, an internal gear is fixed on the inner wall of the wastewater tank, the internal gear is coaxial with the rotating rod, a rotating gear is coaxially sleeved on the stirring rod, the rotating gear is fixed to the stirring rod, and the rotating gear meshes with the internal gear.

[0013] By adopting the above technical solution, when the rotating disk rotates, it drives several rotating rods to move around the rotating rod, causing the rotating gear to move along the trajectory of the internal gear, thereby causing the rotating gear to rotate and driving the stirring rod to rotate. Thus, the stirring rod revolves around the rotating rod while also rotating on its own axis, making the stirring plate more thoroughly agitate the electroplating wastewater, thereby facilitating further thorough mixing of the electroplating wastewater and flocculant.

[0014] Optionally, a protective shell is fitted onto the internal gear, the rotating gear is located inside the protective shell, and the stirring rod passes through the protective shell.

[0015] By adopting the above technical solution, the protective shell covers all the rotating gears and internal gears, making it less likely for the flocculant falling from the feeding pipe to get stuck at the meshing point of the rotating gears and internal gears. This prevents the rotating gears from getting stuck on the internal gears and being unable to move, thus ensuring that the movement of the stirring rod is not affected and increasing the stability of the rotating disc.

[0016] Optionally, the bottom of the rotating rod is provided with a plurality of cleaning rods, one end of which is connected to the rotating rod and the other end of which abuts against the bottom wall of the wastewater tank. The plurality of cleaning rods are arranged radially with the central axis of the rotating rod as the center.

[0017] By adopting the above technical solution, when the rotating rod rotates, it drives several cleaning rods to move at the bottom of the wastewater tank, thereby agitating the electroplating wastewater and flocculant at the bottom of the wastewater tank. At the same time, the flocculant can be lifted up, making it less likely for the flocculant to settle at the bottom of the wastewater tank. This allows the flocculant that falls to the bottom of the wastewater tank to participate in the overall agitation again, achieving full mixing of the flocculant and electroplating wastewater.

[0018] Optionally, the rotating rod is equipped with an electric push rod, the output end of which can extend out of the bottom end of the rotating rod and is connected to a moving block, and one end of the cleaning rod is hinged to the moving block by a torsion spring.

[0019] By adopting the above technical solution, the electric push rod is activated, driving the moving block to move up and down. Under the action of the torsion spring of the sweeping rod, the bottom end is always in contact with the bottom wall of the wastewater tank. When the height of the top of the sweeping rod changes, the sweeping rods move closer or further apart, that is, the opening degree of the sweeping rods is changed, thereby changing the mixing range and making it more applicable.

[0020] Optionally, the bottom end of the sweeping bar is provided with a hemispherical portion.

[0021] By adopting the above technical solution, when the rotating rod drives the sweeping rod to rotate, the bottom end of the sweeping rod slides on the bottom wall of the wastewater tank, and the periphery of the hemisphere has no sharp edges, which facilitates the movement of the sweeping rod.

[0022] Optionally, a rubber sleeve is fitted onto the hemispherical portion, and the rubber sleeve abuts against the bottom wall of the wastewater tank.

[0023] By adopting the above technical solution, the sweeping rod moves, causing the rubber sleeve to abut against the bottom wall of the wastewater tank and slide on the bottom wall of the wastewater tank. The rubber sleeve plays a protective role, making it less likely for the sweeping rod to wear down the bottom wall of the wastewater tank.

[0024] In summary, this application includes at least one of the following beneficial effects:

[0025] 1. In use, electroplating wastewater is fed into the wastewater tank through the inlet pipe. Then, the flocculant is poured into the feeding pipe. The motor is then started, driving the rotating rod to rotate, causing the rotating disc to rotate synchronously. When the outlet on the rotating disc aligns with the feeding pipe, the feeding pipe connects to the wastewater tank through the outlet, allowing the flocculant to fall into the electroplating wastewater. Simultaneously, the rotating disc also moves the stirring component, agitating the electroplating wastewater and mixing it with the flocculant. During this process, the rotating rod and disc rotate continuously, with flocculant being added only when the outlet moves to the feeding pipe, achieving intermittent feeding. This allows for the addition of small amounts of flocculant to the electroplating wastewater multiple times, ensuring thorough mixing between the wastewater and the flocculant.

[0026] 2. When the rotating disk rotates, it drives several rotating rods to move around the rotating rod, causing the rotating gear to move along the trajectory of the internal gear. This causes the rotating gear to rotate, which in turn drives the stirring rod to rotate. Thus, the stirring rod revolves around the rotating rod while also rotating on its own axis, making the stirring plate more thoroughly agitate the electroplating wastewater, thereby facilitating further and more thorough mixing of the electroplating wastewater and flocculant. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the electroplating wastewater treatment device according to an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the internal structure of the wastewater tank;

[0029] Figure 3 This is a schematic diagram of the internal gear and the rotating gear.

[0030] In the diagram: 10. Wastewater tank; 11. Feeding pipe; 12. Inlet pipe; 13. Outlet pipe; 20. Mixing assembly; 21. Mixing rod; 211. Rotating gear; 22. Mixing plate; 30. Rotating rod; 31. Motor; 32. Electric push rod; 40. Rotating disc; 41. Discharge port; 50. Internal gear; 60. Protective shell; 70. Cleaning rod; 71. Rubber sleeve; 72. Torsion spring; 80. Moving block. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses an electroplating wastewater treatment device. (Refer to...) Figure 1 and Figure 2The electroplating wastewater treatment device includes a wastewater tank 10, a feeding pipe 11, and a stirring assembly 20. An inlet pipe 12 and an outlet pipe 13 are connected to the side wall of the wastewater tank 10, with the outlet pipe 13 located at the bottom of the wastewater tank 10. The feeding pipe 11 is located at the top of the wastewater tank 10 and is connected to it. In use, electroplating wastewater is introduced into the wastewater tank 10 through the inlet pipe 12. Then, flocculant is poured into the feeding pipe 11, and the flocculant falls into the wastewater tank 10 through the bottom end of the feeding pipe 11, allowing the flocculant to mix with the electroplating wastewater. After the electroplating wastewater and flocculant have mixed, the outlet pipe 13 is opened to discharge the electroplating wastewater from the wastewater tank 10.

[0033] Reference Figure 1 and Figure 2 A rotating rod 30 is provided in the wastewater tank 10. The rotating rod 30 is vertically arranged and coaxial with the wastewater tank 10. The top end of the rotating rod 30 passes through the top wall of the wastewater tank 10 and extends out of the wastewater tank 10. A motor 31 is bolted to the top wall of the wastewater tank 10. The output end of the motor 31 is coaxially fixed with the top end of the rotating rod 30 and is used to drive the rotating rod 30 to rotate. A feeding pipe 11 is provided on the top wall of the wastewater tank 10 and is connected to the wastewater tank 10. A rotating disk 40 is provided inside the wastewater tank 10 and is horizontally arranged. The rotating disk 40 is coaxially sleeved on the rotating rod 30 and fixed to the rotating rod 30. A discharge port 41 is provided through the rotating disk 40 and can communicate with the feeding pipe 11. A stirring assembly 20 is installed on the rotating disk 40.

[0034] Reference Figure 1 and Figure 2 Initially, the rotating disk 40 blocks the bottom opening of the feeding pipe 11, preventing the feeding pipe 11 from connecting with the wastewater tank 10. When the electroplating wastewater enters the wastewater tank 10, the motor 31 is started, driving the rotating rod 30 to rotate, causing the rotating disk 40 to rotate synchronously. When the discharge port 41 on the rotating disk 40 rotates to align with the feeding pipe 11, the feeding pipe 11 connects with the wastewater tank 10 through the discharge port 41, allowing the flocculant in the feeding pipe 11 to fall into the electroplating wastewater in the wastewater tank 10. Simultaneously, the rotation of the rotating disk 40 also moves the stirring component 20, causing it to agitate the electroplating wastewater and mix it with the flocculant.

[0035] During this process, the rotating rod 30 and the rotating disk 40 rotate continuously, and the flocculant is only added when the discharge port 41 moves to the feeding pipe 11, so as to realize intermittent feeding and the addition of flocculant to the electroplating wastewater in small amounts and multiple times, thereby facilitating the thorough mixing of electroplating wastewater and flocculant.

[0036] Reference Figure 1 and Figure 2The stirring assembly 20 includes several stirring rods 21 and several stirring plates 22. The stirring rods 21 are parallel to the rotating rod 30. The top of the stirring rods 21 is rotatably connected to the rotating disk 40. The stirring rods 21 are arranged at intervals along the circumference of the rotating disk 40, so that the rotating rod 30 is located between the stirring rods 21. The stirring plates 22 are fixed on the stirring rods 21 and are arranged at intervals along the length of the stirring rods 21.

[0037] When the rotating rod 30 drives the rotating disk 40 to rotate, several stirring rods 21 move continuously around the rotating rod 30 to agitate the electroplating wastewater. The stirring plate 22 on the stirring rod 21 can expand the stirring range, so that the electroplating wastewater and the subsequently added flocculant are mixed more thoroughly and evenly.

[0038] Reference Figure 2 and Figure 3 To further improve the mixing effect, an internal gear 50 is fixed on the inner wall of the wastewater tank 10. The internal gear 50 is coaxial with the rotating rod 30. A rotating gear 211 is coaxially sleeved on the stirring rod 21. The rotating gear 211 is fixed to the stirring rod 21 and meshes with the internal gear 50. Both the internal gear 50 and the rotating gear 211 are located below the rotating disk 40, allowing the flocculant to fall from above the rotating gear 211. To prevent the flocculant from getting stuck at the joint between the rotating gear 211 and the internal gear 50, a C-shaped protective shell 60 is fitted onto the internal gear 50. The opening of the protective shell 60 overlaps the internal gear 50, allowing the protective shell 60 to slide on the internal gear 50. Several rotating gears 211 are located inside the protective shell 60, and the stirring rod 21 passes through the protective shell 60.

[0039] When the rotating disk 40 rotates, it drives several rotating rods 30 to move around the rotating rods 30, causing the rotating gear 211 to move along the trajectory of the internal gear 50. This causes the rotating gear 211 to rotate, which in turn drives the stirring rod 21 to rotate. As a result, the stirring rod 21 revolves around the rotating rod 30 while also rotating on its own axis, making the stirring plate 22 more thoroughly agitate the electroplating wastewater, thus facilitating further and more thorough mixing of the electroplating wastewater and flocculant.

[0040] Reference Figure 2 and Figure 3An electric push rod 32 is installed inside the rotating rod 30. The output end of the electric push rod 32 extends downwards from the bottom end of the rotating rod 30 and is fixed to a moving block 80, allowing the moving block 80 to move along the length of the rotating rod 30. Several cleaning rods 70 are rotatably connected to the side wall of the moving block 80 via a rotating shaft. The cleaning rods 70 are arranged radially with the central axis of the rotating rod 30 as the center. A torsion spring 72 is sleeved on the rotating shaft. One end of the torsion spring 72 is fixed to the rotating shaft, and the other end is fixed to the cleaning rod 70. The torsion spring 72 is used to drive the cleaning rod 70 closer to the central axis of the rotating rod 30, so that the end of the cleaning rod 70 away from the moving block 80 always abuts against the bottom wall of the wastewater tank 10.

[0041] Reference Figure 2 The cleaning rod 70 has an integrally formed hemispherical part at its bottom end, and a rubber sleeve 71 is fitted onto the hemispherical part so that the rubber sleeve 71 abuts against the bottom wall of the wastewater tank 10, which serves as a protective function to prevent the cleaning rod 70 from scratching the wastewater tank 10. When the rotating rod 30 rotates, it drives several cleaning rods 70 to move at the bottom of the wastewater tank 10, thereby agitating the electroplating wastewater and flocculant at the bottom of the wastewater tank 10. At the same time, the agitation can also lift the flocculant, making it less likely for the flocculant to settle at the bottom of the wastewater tank 10. This allows the flocculant that falls to the bottom of the wastewater tank 10 to participate in the overall agitation again, achieving a thorough mixing of the flocculant and the electroplating wastewater.

[0042] The electric push rod 32 can also be activated to move the moving block 80 up and down, thereby changing the height of the top of the sweeping rod 70. This causes the sweeping rods 70 to move closer to or further apart from each other, thus changing the degree of opening of the sweeping rods 70 and thereby changing the stirring range, making it more applicable.

[0043] The implementation principle of the electroplating wastewater treatment device in this embodiment is as follows: In the initial state, the rotating disk 40 blocks the bottom opening of the feeding pipe 11, preventing the feeding pipe 11 from communicating with the wastewater tank 10. During use, electroplating wastewater is introduced into the wastewater tank 10 through the inlet pipe 12. Then, flocculant is poured into the feeding pipe 11. Next, the motor 31 is started, driving the rotating rod 30 to rotate, causing the rotating disk 40 to rotate synchronously. When the outlet 41 on the rotating disk 40 rotates to align with the feeding pipe 11, the feeding pipe 11 communicates with the wastewater tank 10 through the outlet 41, allowing the flocculant in the feeding pipe 11 to fall into the electroplating wastewater in the wastewater tank 10 through the outlet 41. Simultaneously, the rotation of the rotating disk 40 also drives the stirring component 20 to move, causing the stirring component 20 to stir the electroplating wastewater, thereby mixing the electroplating wastewater and flocculant.

[0044] During this process, the rotating rod 30 and the rotating disk 40 rotate continuously, and the flocculant is only added when the discharge port 41 moves to the feeding pipe 11, so as to realize intermittent feeding and the addition of flocculant to the electroplating wastewater in small amounts and multiple times, thereby facilitating the thorough mixing of electroplating wastewater and flocculant.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electroplating wastewater treatment device, characterized by comprising: The utility model provides waste water tank (10), feeding pipe (11) and stirring assembly (20), the side wall of waste water tank (10) is connected with inlet pipe (12) and outlet pipe (13) in communication, be equipped with rotating rod (30) in waste water tank (10), rotating rod (30) is vertically arranged, be equipped with motor (31) on the top wall of waste water tank (10), the output of motor (31) is coaxially fixed with the top end of rotating rod (30), is used for driving rotating rod (30) autorotation, feeding pipe (11) is equipped on the top wall of waste water tank (10), and feeding pipe (11) is communicated with waste water tank (10), be equipped with rotating disc (40) for blocking feeding pipe (11) in waste water tank (10), rotating disc (40) is coaxially sleeved in rotating rod (30), rotating disc (40) is fixed with rotating rod (30), the rotating disc (40) is opened and is passed in the top of feeding pipe (11) and is communicated with feeding pipe (11), stirring assembly (20) is equipped on the rotating disc (40).

2. The electroplating wastewater treatment device according to claim 1, wherein The stirring assembly (20) includes a plurality of stirring rods (21) and a plurality of stirring plates (22), the stirring rod (21) is parallel to the rotating rod (30), the top end of the stirring rod (21) is connected with the rotating disc (40), the rotating rod (30) is located between the plurality of stirring rods (21), the plurality of stirring plates (22) are fixed on the stirring rod (21), and the plurality of stirring plates (22) are arranged along the length direction of the stirring rod (21).

3. The electroplating wastewater treatment device according to claim 2, wherein The top end of the stirring rod (21) is rotatably connected to the rotating disc (40), the inner wall of the waste water tank (10) is fixed with an internal gear (50), the internal gear (50) is coaxial with the rotating rod (30), the stirring rod (21) is coaxially sleeved with a rotating gear (211), the rotating gear (211) is fixed with the stirring rod (21), and the rotating gear (211) is engaged with the internal gear (50).

4. The electroplating wastewater treatment device according to claim 3, wherein The internal gear (50) is sleeved with a protective shell (60), the rotating gear (211) is located in the protective shell (60), and the stirring rod (21) penetrates the protective shell (60).

5. The electroplating wastewater treatment device according to claim 1, wherein The bottom of the rotating rod (30) is provided with a plurality of cleaning rods (70), one end of the cleaning rod (70) is connected with the rotating rod (30), the other end abuts against the bottom wall of the waste water tank (10), and a plurality of the cleaning rods (70) are radially arranged with the central axis of the rotating rod (30) as the center.

6. The electroplating wastewater treatment device according to claim 5, wherein The rotating rod (30) is provided with an electric push rod (32), the output end of the electric push rod (32) can extend out of the bottom end of the rotating rod (30) and is connected with a moving block (80), one end of the cleaning rod (70) is hinged to the moving block (80) through a torsional spring (72).

7. The electroplating wastewater treatment device according to claim 5, wherein The bottom end of the cleaning rod (70) is provided with a hemispherical part.

8. The electroplating wastewater treatment device according to claim 7, wherein The hemispherical part is sleeved with a rubber sleeve (71), and the rubber sleeve (71) abuts against the bottom wall of the waste water tank (10).

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