An improved oil removal device for electroplating wastewater

Abstract

This application relates to the field of filtration devices, specifically disclosing an improved oil removal device for electroplating wastewater. The device includes a housing with a suction pipe connected to it. A float is mounted at one end of the suction pipe, and a fixed pipe is mounted on the float, connected to the suction pipe. Three rotating plates are evenly spaced and rotatably arranged along the circumference of the fixed pipe, with the rotation axis of the rotating plates parallel to the height of the fixed pipe. A supporting float is located at the end of the rotating plate away from the fixed pipe. Three adjusting floats are evenly spaced along the circumference of the fixed pipe, corresponding one-to-one with the three supporting floats. The float is equipped with a rotating assembly for driving the supporting floats and a balancing assembly for inflating / deflating the adjusting floats. A driving component for moving the float is also provided on the float. This application effectively removes floating oil stains located in corners and edges, improving oil removal efficiency.

Description

Technical Field

[0001] This application relates to the field of filtration devices, and in particular to an improved oil removal device for electroplating wastewater. Background Technology

[0002] Electroplating wastewater is a highly polluting industrial wastewater with complex composition. Besides containing cyanide, heavy metal ions (such as chromium, nickel, and copper), and acidic and alkaline substances, oil pollutants are the main challenge in its treatment. This oil exists in two forms: suspended oil and emulsified oil. Suspended oil particles are typically larger than 10 μm and can naturally float to the surface and separate; while emulsified oil forms a stable dispersion system with a particle size of less than 10 μm due to the action of surfactants. Currently, physical cleaning methods are mainly used for suspended oil.

[0003] The existing wastewater oil removal device consists of a tank connected to a suction pipe. A float is mounted on the suction pipe, and three floats are mounted on the float, forming a stable equilateral triangle structure. The suction pipe is located at the center of the floats. Technicians throw the float and floats into the wastewater pool. The floats ensure that the suction port of the suction pipe is below the oil in the wastewater. A water pump inside the tank draws the oil floating on the surface of the wastewater into the tank, where the oil and wastewater are further treated. The treated oil is collected and centrally processed, while the separated wastewater is discharged back into the wastewater pool.

[0004] In existing oil removal devices, the float is fixed and floats at a certain position in the wastewater pool, and the float makes it difficult for the suction pipe to reach into the corner of the wastewater pool. As a result, the suction pipe cannot quickly suck up the oil that has accumulated in the corner of the wastewater pool, which affects the oil removal efficiency of the oil removal device. Utility Model Content

[0005] In order to improve the problem that existing degreasing devices cannot quickly remove oil stains from corners of wastewater pools, this application provides an improved degreasing device for electroplating wastewater.

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

[0007] An improved electroplating wastewater oil removal device includes a housing with a suction pipe connected to it. A float is mounted at one end of the suction pipe, and a fixed pipe is mounted on the float, connected to the suction pipe. Three rotating plates are evenly spaced and rotatably arranged along the circumference of the fixed pipe, with the rotation axis of each plate parallel to the height of the fixed pipe. A supporting float is mounted at the end of each rotating plate away from the fixed pipe. Three adjusting floats are evenly spaced along the circumference of the fixed pipe, each corresponding to one of the three supporting floats. The float is equipped with a rotating assembly for driving the supporting floats and a balancing assembly for inflating / deflating the adjusting floats. A driving component is also provided on the float to move it.

[0008] By adopting the above technical solution, when using the oil removal device, the float is placed in the wastewater tank. The buoyancy of the supporting float on the rotating plate keeps the inlet of the suction pipe below the water surface. The driving component drives the float to move in the wastewater tank, and the suction pipe sucks up the oil floating in the wastewater tank. The oil is sucked into the tank, and the tank further separates the sucked oil and wastewater. The separated wastewater is discharged back into the wastewater tank, and the separated oil is collected and centrally treated.

[0009] When the driving component moves the floating frame in the wastewater tank, the rotating plate abuts against the tank wall. The rotating assembly drives the rotating plate to rotate along the fixed pipe, bringing the suction pipe connected to the fixed pipe closer to the tank wall. This allows the suction pipe to pick up oil stains near the tank wall and oil stains located in the corners of the wastewater tank, reducing the difficulty of picking up oil stains in the corners and edges of the wastewater tank and improving the oil removal efficiency.

[0010] When the rotating plate rotates, the stability structure between the three supporting floats changes. The balancing component introduces the gas in the supporting floats into the corresponding adjusting floats, increasing the buoyancy of the adjusting floats on the float frame and keeping the float frame parallel to the water surface. This keeps the inlet of the suction pipe parallel to the water surface. After the rotating plate rotates, the adjusting floats abut against the pool wall, shortening the distance between the suction pipe and the pool wall. This makes it easier for the suction pipe to suck up oil stains located on the pool wall and in the corners, and reduces the risk of the suction pipe tilting due to the rotation of the rotating plate.

[0011] Optionally, the rotating assembly includes a toothed ring fixed to the fixed tube, a motor is provided on the rotating plate, a rotating gear is coaxially fixed to the output end of the motor, the rotating gear meshes with the toothed ring, a pressure sensor is provided on the rotating plate, and a controller is provided on the float, the controller being electrically connected to the motor.

[0012] By adopting the above technical solution, when the rotating plate abuts against the wall of the wastewater tank, the pressure sensor transmits an electrical signal to the controller. The controller controls the motor to start, the motor rotates and drives the rotating gear to rotate. The rotating gear meshes with the toothed ring, causing the rotating plate to rotate along the fixed plate. The angle between the rotating plates changes, bringing the suction pipe closer to the wall of the wastewater tank. The suction pipe can more effectively suck up the oil stains near the tank wall, thereby improving the oil removal efficiency.

[0013] Optionally, a fixing post is fixedly connected to the bottom of the fixing tube, and three sliding grooves are spaced apart along the height direction of the fixing tube. One end of the rotating plate passes through the sliding groove and is rotatably mounted on the fixing post.

[0014] By adopting the above technical solution, when the rotating plate rotates, it moves away from the supporting float, passes through the chute, and rotates on the fixed column. When the rotating plate comes into contact with the corner of the wastewater pool, the chute, which is set at intervals and in a staggered manner, can increase the rotation angle of the rotating plate, so that the suction pipe can suck up the oil stains in the corner of the wastewater pool, thereby improving the oil removal effect.

[0015] Optionally, the balancing assembly includes an adjusting plate slidably disposed within the adjusting float, the top of the adjusting float having a connecting hole, and both the adjusting float and the supporting float having adjusting holes at their bottoms. The rotating plate is provided with a synchronizing element for driving the adjusting plate to move.

[0016] By adopting the above technical solution, when the rotating plate rotates, the stable structure formed by the three rotating plates is destroyed. At this time, the synchronizing component introduces the air in the supporting float into the regulating float, or introduces the air in the regulating float into the supporting float through the connecting hole and connecting pipe, so that the regulating plate moves along the inner peripheral wall of the regulating float, while the wastewater inside the regulating float and the supporting float flows from the regulating hole, thereby keeping the float frame as a whole stable.

[0017] Optionally, the synchronizing element includes a gear coaxially fixed to the output end of the motor, an adjusting plate is slidably disposed inside the supporting float, an adjusting rod is slidably disposed on the top of the supporting float, one end of the adjusting rod is fixedly connected to the adjusting plate, a rack is disposed on the adjusting rod that meshes with the gear, and a connecting hole is also provided on the supporting float, with a connecting pipe connecting the two connecting holes.

[0018] By adopting the above technical solution, when the motor starts, the motor rotates and drives the gear to rotate. The gear drives the rack to move along the height direction of the fixed pipe. The movement of the rack drives the adjustment plate inside the support float to move. The water in the cavity formed by the adjustment plate and the bottom of the support float is discharged or sucked in through the adjustment hole. This allows the air between the upper part of the support float and the adjustment plate to be introduced into the adjustment float through the connecting pipe. The volume of the cavity between the upper part of the adjustment float and the adjustment plate changes, thereby changing the buoyancy of the adjustment float and the support float. This makes the plane of the suction pipe parallel to the water surface, reducing the impact of the rotation of the rotating plate on the suction pipe's ability to absorb oil.

[0019] Optionally, an electric telescopic rod is fixedly connected to the float, the telescopic end of the electric telescopic rod is fixedly connected to the adjusting buoy, an ultraviolet fluorescence sensor is provided on the float, a concentration controller is provided on the float, the concentration controller is electrically connected to the electric telescopic rod, and a fixing hole is provided on the float to slide and adapt to the adjusting buoy.

[0020] By adopting the above technical solution, when the driving component moves the float in the wastewater pool, the ultraviolet fluorescence sensor identifies the density of oil floating on the water surface. When there is a lot of oil, the ultraviolet fluorescence sensor transmits an electrical signal to the concentration controller. The concentration controller activates the electric telescopic rod, which retracts. The adjusting float moves upward in the height direction within the fixed hole, reducing the volume of the adjusting float below the water surface and decreasing the buoyancy exerted by the adjusting float on the float. This increases the overall height of the float below the water surface, thereby increasing the distance between the suction pipe opening and the water surface, allowing the suction pipe to more quickly absorb the oil. When there is less oil, the telescopic end of the electric telescopic rod extends, increasing the buoyancy exerted by the adjusting float on the float. This reduces the distance between the suction pipe opening and the water surface, decreasing the water content of the oil in the tank. This reduces the workload of the tank in subsequent oil treatment and improves the oil separation efficiency.

[0021] Optionally, a limiting groove is formed in the wall of the fixing hole, and a limiting block that is adapted to be inserted into the limiting groove is fixed on the outer peripheral wall of the supporting float.

[0022] By adopting the above technical solution, the electric telescopic rod drives the adjusting float to move within the fixed hole. The limiting groove and the limiting block fix the adjusting float, increasing the stability between the adjusting float and the float frame.

[0023] Optionally, the driving component includes a drive motor rotatably mounted at the bottom of the fixed tube, the drive motor having a propeller mounted on it, and the rotation axis of the drive motor being parallel to the height direction of the fixed tube.

[0024] By adopting the above technical solution, the drive motor drives the propeller to rotate and changes the direction of the float's movement, so that the suction pipe can suck up the oil from areas with more oil. The propeller drives the float to move in the wastewater pool, making it convenient for the suction pipe to suck up the oil floating on the water surface, thereby improving the oil removal efficiency of the wastewater pool.

[0025] Optionally, a water inlet hole is provided on the side wall of the fixed tube, and the water inlet hole is located above the water suction pipe opening.

[0026] By adopting the above technical solution, the wastewater in the wastewater tank can flow into the fixed pipe through the inlet hole, and the fixed pipe can perform preliminary filtration of the floating scum in the wastewater tank.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When an oil removal device is needed to treat floating oil in a wastewater tank, a float is placed in the wastewater tank. The drive unit moves the float frame. When the float frame abuts against the tank wall, the motor controls the gear and rotating gear to rotate. The gear meshes with the rack, and the rack controls the adjustment plate to move, so that the control inside the supporting float is directed into the adjusting float. The rotating gear meshes with the toothed ring, driving the rotating plate to rotate along the fixed column. While maintaining the stability of the float frame, the suction pipe is brought closer to the tank wall, improving the suction pipe's ability to absorb oil near the tank wall and collected in corners, thus improving the oil removal efficiency.

[0029] 2. During the oil removal process in the wastewater tank, when the ultraviolet fluorescence sensor detects an area with a high concentration, the electric telescopic rod drives the adjusting float to move upward along the height direction, reducing the buoyancy of the adjusting float on the float frame, making the distance between the suction pipe and the water surface greater, and increasing the suction pipe's efficiency in absorbing oil from the wastewater surface. When the concentration in the wastewater tank is low, the electric telescopic rod drives the adjusting float to move downward along the height direction, making the suction pipe closer to the water surface, reducing the suction pipe from sucking excess wastewater into the tank, and improving the oil removal efficiency of the oil removal device.

[0030] 3. When storing the degreasing device, rotate the rotating plate so that two of the rotating plates are close to one of the rotating plates, and fix the three rotating plates on the fixed pipe. This can reduce the overall space of the floating frame and facilitate the transportation of the storage box. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0032] Figure 2 This is a partial structural schematic diagram of an embodiment of this application;

[0033] Figure 3 It is along Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0034] Figure 4 yes Figure 3 Enlarged schematic diagram of part B.

[0035] Reference numerals: 1. Box body; 11. Suction pipe; 2. Float; 21. Rotating plate; 22. Fixing pipe; 221. Fixing column; 222. Slide groove; 223. Electric telescopic rod; 224. Fixing hole; 225. Limiting groove; 226. Water inlet; 23. Ultraviolet fluorescence sensor; 3. Support float; 4. Adjusting float; 41. Limiting block; 51. Motor; 52. Rotating gear; 53. Gear ring; 54. Pressure sensor; 61. Adjusting plate; 62. Connecting hole; 63. Adjusting hole; 641. Gear; 642. Rack; 643. Adjusting rod; 644. Connecting pipe; 71. Drive motor; 72. Propeller. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] This application discloses an improved oil removal device for electroplating wastewater. (Refer to...) Figure 1 , Figure 2 and Figure 4The improved electroplating wastewater oil removal device includes a housing 1, with a suction pipe 11 connected to the housing 1. The suction pipe 11 is a flexible hose and is connected to a float 2. The float 2 includes a fixed pipe 22 and a rotating plate 21. The suction pipe 11 is connected to the fixed pipe 22. A water inlet 226 is provided on the outer peripheral wall of the fixed pipe 22, located above the inlet of the suction pipe 11. The rotating plate 21 is rotatably mounted on the fixed pipe 22. Three evenly spaced holes are provided on the fixed pipe 22 along its height direction. A sliding groove 222, a fixed column 221 is fixedly connected inside the fixed tube 22, one end of a rotating plate 21 is rotatably connected to the fixed column 221, the rotating plate 21 passes through the sliding groove 222, a sealing element is provided at the sliding groove 222 and the rotating plate 21, the sealing element can be an elastic sealing ring, or the sealing element can be a filter plate to prevent oil from entering and adhering to the fixed column 221, a support float 3 is fixedly connected to the end of the rotating plate 21 away from the fixed tube 22, and an adjustment valve is provided on the fixed tube 22. The fixed tube 22 has a connecting port on its side wall, and the water suction pipe 11 passes through the connecting port and connects to the fixed tube 22. A sealing element, which can be a rubber sealing ring, is also provided at the connecting port. The initial position of the rotating plate 21 is located at the center of the slide groove 222. The line connecting the supporting floats 3 on the rotating plate 21 forms an equilateral triangle. The initial position of the rotating plate 21 is located on the midline of the equilateral triangle. The three supporting floats 3 correspond one-to-one with the three adjusting floats 4. The float frame 2 is provided with a balancing component for inflating / deflating the adjusting floats 4. The float frame 2 is provided with a rotating component for driving the rotating plate 21 to rotate. The float frame 2 is also provided with a driving component for driving the float frame 2 to move. The driving component is a driving motor 71 rotatably set at the bottom of the fixed tube 22. The driving motor 71 is provided with a propeller 72. Alternatively, the driving component can be a driving motor 71 set at the bottom of the fixed tube 22. The driving motor 71 is provided with a propeller 72. A steering plate is rotatably set at the bottom of the fixed tube 22.

[0038] Since wastewater tanks are typically rectangular, when adjacent rotating plates 21 abut against the same tank wall, the maximum angle between the two rotating plates 21 abutting against the tank wall is 180 degrees. When the rotating plates 21 in contact with the tank wall are subjected to the same force, each rotating plate 21 rotates 30 degrees along the fixed pipe 22. When adjacent rotating plates 21 abut against two mutually perpendicular tank walls, the included angle between adjacent rotating plates 21 is 270 degrees. When the rotating plates 21 in contact with the tank wall are subjected to the same force, each rotating plate 21 rotates 75 degrees. Thus, the maximum included angle between adjacent rotating plates 21 is 270 degrees. Since the three supporting floats 3 form an equilateral triangle, a single rotating plate 21 can rotate 75 degrees to each side to meet the usage requirements of the wastewater tank. The adjacent chutes 222 are staggered along the height direction, increasing the rotation angle of the rotating plates 21. When using other irregularly shaped wastewater tanks, the length of the chutes 222 can be changed, thereby changing the deflection angle of the rotating plates 21.

[0039] When cleaning oil floating on the surface of the wastewater pool, the float 2 is placed in the wastewater pool. The chute 222 and the seal at the connection port reduce the amount of oil entering the fixed pipe 22 and reduce the impact of oil on the rotation of the rotating plate 21. The drive motor 71 is started, and the propeller 72 drives the float 2 to move slowly in the wastewater pool, reducing the interference of oil floating on the water surface. When it is necessary to suck up oil near the edge of the pool wall, the propeller 72 drives the float 2 to abut against the pool wall, and the adjacent rotating plate 21 abuts against the same pool wall. The balancing mechanism drives the two adjacent rotating plates 21 to rotate along the fixed column 221, so that the angle between the two rotating plates 21 abutting against the pool wall is 180 degrees. At the same time, the balancing mechanism introduces air from the supporting float 3 into the adjusting float 4, increasing the buoyancy in the adjusting float 4 and reducing the problem of the float 2 becoming unbalanced due to the rotation of the rotating plate 21. At this time, the distance between the suction pipe 11 and the pool wall is shortened, effectively improving the suction efficiency of the suction pipe 11 for oil at the edge of the pool wall.

[0040] When the propeller 72 and the steering plate move the float 2 to the corner of the wastewater pool, the adjacent rotating plates 21 abut against the two perpendicular pool walls respectively. The rotating assembly drives the two rotating plates 21 to rotate 75 degrees to both sides, so that the angle between the two rotating plates 21 abutting against the pool walls is 270 degrees. The side wall of the rotating plate 21 abuts against the end of the slide chute 222. The balancing assembly introduces the air in the supporting float 3 on the two rotating plates 21 into the adjusting float 4, thereby maintaining the stability of the float 2. The fixed pipe 22 drives the suction pipe 11 to suck up the oil stains in the corner of the wastewater pool, effectively improving the oil removal efficiency. The three rotating plates 21 can rotate along the fixed pipe 22, reducing the volume of the float 2 and making it easy to store.

[0041] Reference Figure 1 , Figure 2 and Figure 3The rotating assembly includes a toothed ring 53 fixed to the outer peripheral wall of the fixed tube 22, a motor 51 fixed to the rotating plate 21, and a rotating gear 52 coaxially fixed to the output end of the motor 51, the rotating gear 52 meshing with the toothed ring 53; the balancing assembly includes an adjusting plate 61 slidably disposed inside the adjusting float 4, the top of the adjusting float 4 having a connecting hole 62, and a synchronizing element for driving the adjusting plate 61 to move on the float frame 2; the synchronizing element includes a gear 641 coaxially fixed to the output end of the motor 51, an adjusting plate 61 also slidably disposed inside the supporting float 3, an adjusting rod 643 fixed to the adjusting plate 61 inside the supporting float 3, a movable hole being opened at the top of the supporting float 3, the adjusting rod 643 passing through the movable hole and slidably disposed on the rotating plate 21, and a connecting hole 62 being opened at the top of the supporting float 3. A connecting pipe 644, which is a stainless steel flexible hose, is connected between the two connecting holes 62. A rack 642 is fixedly connected to the adjusting rod 643. A gear 641 is coaxially fixed to the output end of the motor 51. The gear 641 meshes with the rack 642. Adjusting holes 63 are opened at the bottom of the adjusting float 4 and the supporting float 3. Pressure sensors 54 are set on both sides of the rotating plate 21. A controller is set on the rotating plate 21. The controller is electrically connected to the motor 51. The controller can be a PLC (programmable logic controller), etc. The cavity formed between the supporting float 3, the adjusting float 4 and the adjusting plate 61 is the adjusting cavity.

[0042] When the rotating plate 21 abuts against the pool wall, the pressure sensor 54 transmits an electrical signal to the controller. The controller then starts the motor 51, which drives the gear 641 and the rotating gear 52 to rotate. The gear 641 drives the rack 642 to move along the height direction. The rack 642 slides through the movable hole at the top of the supporting float 3, and drives the adjusting plate 61 inside the supporting float 3 to move, thus changing the volume of the adjusting cavity. When the adjusting plate 61 moves, the water in the cavity formed by the bottom of the supporting float 3 and the adjusting plate 61 flows through the adjusting hole 63 at the bottom of the supporting float 3, and the air in the adjusting cavity flows through the connecting pipe 644. When the float ball 4 is introduced into the water, the adjusting plate 61 in the adjusting float ball 4 moves downward along the height direction, increasing the buoyancy of the adjusting float ball 4, thereby enhancing the stability of the float frame 2, reducing the risk of the suction pipe 11 tipping over, and improving the stability of the structure. At the same time, the motor 51 drives the rotating gear 52 to rotate, and the rotating gear 52 meshes with the toothed ring 53. The gear 641 drives the rotating plate 21 to rotate along the fixed column 221, changing the angle between two adjacent rotating plates 21, thereby bringing the suction pipe 11 closer to the pool wall and improving the suction efficiency of the suction pipe 11 in absorbing oil stains located on the pool wall and in the corners of the wastewater pool.

[0043] When the rotating plate 21 is separated from the pool wall, the controller controls the motor 51 to reverse. The motor 51 controls the rotating plate 21 to return to the middle of the slide 222 and drives the adjusting plate 61 in the supporting float 3 to move, so that the gas in the adjusting float 4 is introduced into the supporting float 3 through the connecting pipe 644.

[0044] Reference Figure 1 and Figure 4 The float 2 has a fixing hole 224, and a limit groove 225 is provided on the side wall of the fixing hole 224. A limit block 41 is fixedly connected to the adjusting float 4. The limit block 41 is inserted and matched with the limit groove 225. The adjusting float 4 is slidably matched with the fixing hole 224. An electric telescopic rod 223 is fixedly connected to the float 2. The fixed end of the electric telescopic rod 223 is fixedly connected to the top of the adjusting float 4. An ultraviolet fluorescence sensor 23 is provided on the float 2. The ultraviolet fluorescence sensor 23 can also be an optical turbidity sensor. A concentration controller is provided on the float 2. The concentration controller can also be a PLC (programmable logic controller). The concentration controller is electrically connected to the electric telescopic rod 223. The concentration controller can also be electrically connected to the drive motor 71. When there is a lot of oil in the wastewater pool, the ultraviolet fluorescence sensor 23 can control the propeller 72 to reduce the speed, so that the suction pipe 11 can suck up the oily area for a longer time.

[0045] When the ultraviolet fluorescence sensor 23 detects a high oil content in the wastewater tank, the concentration controller controls the electric telescopic rod 223 to retract, causing the adjusting float 4 to move upwards in the height direction. The limiting block 41 on the adjusting float 4 engages with the limiting groove 225, making the adjusting float 4 and the float frame 2 more stable. As the adjusting float 4 rises, the volume of the adjusting cavity below the water surface decreases, reducing the buoyancy generated by the adjusting float 4. This increases the overall submersion height of the float frame 2, increasing the height of the suction pipe 11's opening above the water surface, allowing the suction pipe 11 to more effectively absorb oil from areas with high oil content. Similarly, when the oil content in the wastewater tank is low, the electric telescopic rod 223 drives the adjusting float 4 to move downwards in the height direction, increasing the overall buoyancy of the float frame 2. This brings the suction pipe 11's opening closer to the water surface, reducing the amount of wastewater sucked into the tank 1 by the suction pipe 11, thus improving the efficiency of the tank 1 in further removing oil.

[0046] The implementation principle of the improved electroplating wastewater oil removal device in this application embodiment is as follows: When it is necessary to clean the oil stains in the wastewater pool, the float 2 is placed in the wastewater pool, and the propeller 72 drives the float 2 to move slowly in the wastewater pool, which improves the oil removal efficiency; when the float 2 abuts against the pool wall, the pressure sensor 54 transmits the electrical signal to the controller, the motor 51 starts and drives the gear 641 and the rotating gear 52 to rotate, the rotating gear 52 meshes with the toothed ring 53, and drives the rotating plate 21 to rotate along the fixed column 221 at a certain angle, so that the suction pipe 11 is closer to the pool wall, which effectively improves the suction efficiency of the suction pipe 11 for oil stains close to the pool wall and collected in the corners; The rotation of gear 641 drives rack 642 to rotate along the height direction. Rack 642 drives adjusting rod 643 to move within the movable hole. Adjusting rod 643 drives adjusting plate 61 to move, allowing air in the supporting float 3 to be introduced into adjusting float 4 through connecting pipe 644. The buoyancy of adjusting float 4 increases, reducing the risk of float frame 2 tilting due to rotation of rotating plate 21 and increasing the overall stability of float frame 2. When the oil concentration in the wastewater pool is different, the concentration controller controls the electric telescopic extension and retraction, thereby adjusting the buoyancy of adjusting float 4 on float frame 2. This causes the height of the suction pipe 11 from the water surface to change with the oil concentration, improving the oil removal efficiency of the oil removal device.

[0047] 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 improved electroplating wastewater degreasing device, comprising a housing (1), wherein a suction pipe (11) is connected to the housing (1), and a float (2) is provided at one end of the suction pipe (11), characterized in that: The float (2) is provided with a fixed pipe (22), which is connected to the water suction pipe (11). Three rotating plates (21) are evenly spaced and rotatably arranged on the fixed pipe (22) along the circumference of the pipe wall. The rotation axis of the rotating plate (21) is parallel to the height direction of the fixed pipe (22). A supporting float (3) is provided at the end of the rotating plate (21) away from the fixed pipe (22). Three adjusting floats (4) are evenly spaced along the circumference of the fixed pipe (22). The three adjusting floats (4) correspond one-to-one with the three supporting floats (3). The float (2) is provided with a rotating component for driving the supporting floats (3) to rotate and a balancing component for inflating / deflating the adjusting floats (4). The float (2) is provided with a driving component for driving the float (2) to move.

2. The improved electroplating wastewater oil removal device according to claim 1, characterized in that: The rotating assembly includes a toothed ring (53) fixed to the fixed tube (22), a motor (51) is provided on the rotating plate (21), a rotating gear (52) is coaxially fixed to the output end of the motor (51), the rotating gear (52) meshes with the toothed ring (53), a pressure sensor (54) is provided on the rotating plate (21), and a controller is provided on the float (2), the controller is electrically connected to the motor (51).

3. The improved electroplating wastewater oil removal device according to claim 1, characterized in that: The bottom of the fixed tube (22) is fixedly connected to a fixed column (221). The fixed tube (22) is provided with three sliding grooves (222) spaced apart along the height direction. One end of the rotating plate (21) passes through the sliding groove (222) and is rotatably mounted on the fixed column (221).

4. An improved electroplating wastewater oil removal device according to claim 2, characterized in that: The balancing assembly includes an adjusting plate (61) that is slidably disposed within the adjusting float (4). The top of the adjusting float (4) has a connecting hole (62), and the bottom of both the adjusting float (4) and the supporting float (3) has adjusting holes (63). The rotating plate (21) is provided with a synchronizing element for driving the adjusting plate (61) to move.

5. An improved electroplating wastewater oil removal device according to claim 4, characterized in that: The synchronizing element includes a gear (641) coaxially fixed to the output end of the motor (51). An adjusting plate (61) is also slidably disposed inside the supporting float (3). An adjusting rod (643) is slidably disposed on the top of the supporting float (3). One end of the adjusting rod (643) is fixedly connected to the adjusting plate (61). A rack (642) that meshes with the gear (641) is disposed on the adjusting rod (643). A connecting hole (62) is also provided on the supporting float (3). A connecting pipe (644) is connected between the two connecting holes (62).

6. An improved electroplating wastewater oil removal device according to claim 1, characterized in that: An electric telescopic rod (223) is fixedly connected to the float (2). The telescopic end of the electric telescopic rod (223) is fixedly connected to the adjusting float (4). An ultraviolet fluorescence sensor (23) is provided on the float (2). A concentration controller is provided on the float (2). The concentration controller is electrically connected to the electric telescopic rod (223). A fixing hole (224) is provided on the float (2) to slide and adapt to the adjusting float (4).

7. An improved electroplating wastewater oil removal device according to claim 6, characterized in that: The wall of the fixed hole (224) has a limiting groove (225), and a limiting block (41) that is compatible with the limiting groove (225) is fixed on the outer peripheral wall of the supporting float (3).

8. An improved electroplating wastewater oil removal device according to claim 1, characterized in that: The driving component includes a drive motor (71) rotatably mounted at the bottom of the fixed tube (22), and a propeller (72) is mounted on the drive motor (71). The rotation axis of the drive motor (71) is parallel to the height direction of the fixed tube (22).

9. An improved electroplating wastewater oil removal device according to claim 1, characterized in that: The fixed pipe (22) has a water inlet hole (226) on its side wall, which is located above the opening of the suction pipe (11).

Images