A micro-electrolysis device for electroplating wastewater treatment

Abstract

The utility model belongs to the field of sewage treatment, specifically is a kind of micro electrolytic device for electroplating wastewater treatment, including jar body, the inside installation of jar body has upper net board and lower net board, upper net board and lower net board are filled with micro electrolytic filler, the bottom of jar body is fixedly connected with outlet pipe, the top of jar body is fixedly connected with inlet pipe;The bottom of jar body is installed with aeration pipe, the bottom of jar body is fixedly connected with the gas pipe connected with aeration pipe;The inside sliding connection of jar body is water distribution tray, bottom aeration pipe passes through gas pipe and is inhaled air, air injection will make sewage roll, to clean micro electrolytic filler in this way, to reduce the hardening condition of micro electrolytic filler, simultaneously, hydraulic cylinder drives water distribution tray to move up and down, drives upper net board to extrude and loosen micro electrolytic filler, increases clearance, to facilitate micro electrolytic filler to roll cleaning, improve cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, specifically a micro-electrolysis device for treating electroplating wastewater. Background Technology

[0002] Electroplating wastewater has a complex composition, containing heavy metals, cyanides, acidic and alkaline substances, and organic additives. Micro-electrolysis technology can efficiently pretreat or deeply treat this type of wastewater through the synergistic effects of oxidation-reduction, flocculation, and adsorption in iron-carbon galvanic cell reactions.

[0003] Currently, in existing technologies, micro-electrolysis devices mainly consist of a tank, a mesh plate, and a packing layer. The packing layer is mostly filled with a fixed mixture of iron filings and activated carbon. During use, the packing layer needs to be compacted to prevent wastewater from taking shortcuts and flowing quickly through the reaction tank when the gaps between the packing are too large, resulting in most of the packing not participating in the reaction and insufficient degradation of pollutants.

[0004] However, during use, electroplating wastewater contains a large amount of heavy metal ions. After micro-electrolysis treatment, these heavy metal ions will form a large amount of heavy metal sludge. This sludge is mixed in the gaps of the micro-electrolysis packing, which leads to the packing layer becoming caked. Therefore, a micro-electrolysis device for electroplating wastewater treatment is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a micro-electrolysis device for electroplating wastewater treatment.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The micro-electrolysis device for electroplating wastewater treatment of this utility model includes a tank body, an upper mesh plate and a lower mesh plate are installed inside the tank body, and micro-electrolysis filler is filled between the upper mesh plate and the lower mesh plate. A water outlet pipe is fixedly connected to the bottom of the tank body, and a water inlet pipe is fixedly connected to the top of the tank body. An aeration pipe is installed at the bottom of the tank body, and an air supply pipe connected to the aeration pipe is fixedly connected to the bottom of the tank body. A water distribution plate is slidably connected inside the tank body, the upper mesh plate is fixedly connected to the bottom of the water distribution plate, and a hydraulic cylinder is fixedly connected to the top of the tank body. The output end of the hydraulic cylinder is fixedly connected to the water distribution plate.

[0007] Preferably, a support rod is fixed to the bottom of the tank, a support is fixed to the end of the support rod, a distribution seat is installed on the top of the support, the air supply pipe is fixed to the support, the support has a cavity inside, the air supply pipe is connected to the cavity, and multiple aeration pipes are provided, with multiple aeration pipes fixed to the surface of the distribution seat.

[0008] Preferably, the support and the distribution seat are rotatably connected by a bearing, a rotating shaft is fixedly connected to the middle of the distribution seat, an impeller is fixedly connected to the bottom end of the rotating shaft, the impeller is located inside the cavity, the lower screen plate is fixedly connected to the aeration pipe, and the lower screen plate is rotatably connected to the inner wall of the tank.

[0009] Preferably, a vertical pipe is fixed to the top of the water distribution plate, and water distribution holes are evenly distributed at the bottom of the water distribution plate.

[0010] Preferably, an arc-shaped blade is fixed to the top of the lower mesh plate, and multiple arc-shaped blades are arranged in a ring.

[0011] Preferably, a backwash pipe is fixedly connected to the bottom of the tank, a drain pipe is fixedly connected to the top of the tank, and a drain gap is provided at the bottom of the mesh plate and the water distribution plate.

[0012] The advantages of this utility model are:

[0013] 1. This utility model, by setting up a hydraulic cylinder, a water distribution plate, an aeration pipe, an air supply pipe, and a mesh plate, allows air to be introduced through the bottom aeration pipe and the air supply pipe during use. The air injection causes the sewage to tumble, thereby cleaning the micro-electrolysis packing and reducing the caking of the micro-electrolysis packing. At the same time, the hydraulic cylinder drives the water distribution plate to move up and down, causing the mesh plate to squeeze and loosen the micro-electrolysis packing, increasing the gap and facilitating the tumbling and cleaning of the micro-electrolysis packing, thus improving the cleaning effect.

[0014] 2. By setting up a rotating shaft and an impeller, the present invention allows compressed air to enter the support through the air supply pipe during use, and then enter multiple aeration pipes through the internal cavity of the support. The air flows in the cavity and drives the impeller to rotate, thereby making the rotating shaft and the distribution seat rotate synchronously, driving the lower screen plate to rotate in the tank, disturbing the micro-electrolysis packing and preventing caking. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the tank body of this utility model;

[0019] Figure 4 This is a schematic diagram of the arc-shaped blade structure of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the support of this utility model.

[0021] In the diagram: 11. Tank body; 12. Inlet pipe; 13. Water distribution plate; 14. Net plate; 15. Lower net plate; 16. Hydraulic cylinder; 21. Support; 22. Distribution seat; 23. Aeration pipe; 24. Support rod; 25. Air supply pipe; 31. Impeller; 32. Shaft; 41. Water distribution hole; 42. Vertical pipe; 5. Arc-shaped blade; 61. Backwash pipe; 62. Drain pipe; 63. Drainage gap. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figure 1-5 As shown, a micro-electrolysis device for treating electroplating wastewater includes a tank 11. A mesh plate 14 and a lower mesh plate 15 are installed inside the tank 11, with micro-electrolysis filler filling the space between the mesh plate 14 and the lower mesh plate 15. An outlet pipe is fixedly connected to the bottom of the tank 11, and an inlet pipe 12 is fixedly connected to the top of the tank 11. An aeration pipe 23 is installed at the bottom of the tank 11, and an air supply pipe 25 connected to the aeration pipe 23 is fixedly connected to the bottom of the tank 11. A water distribution plate 13 is slidably connected inside the tank 11, with the mesh plate 14 fixedly connected to the bottom of the water distribution plate 13. A hydraulic cylinder 16 is fixedly connected to the top of the tank 11, and the output end of the hydraulic cylinder 16 is fixedly connected to the water distribution plate 13.

[0025] During use, the inlet pipe 12 is used to transport the incoming sewage, and the outlet pipe at the bottom is used to discharge the treated sewage. The inside of the tank 11 is equipped with a mesh plate 14 and a lower mesh plate 15. The space between the mesh plate 14 and the lower mesh plate 15 is filled with micro-electrolysis packing material, which is iron-carbon micro-electrolysis packing material. When the wastewater flows through it, an electrochemical reaction occurs, effectively degrading organic pollutants. In conjunction with the bottom aeration pipe 23, air is introduced through the air supply pipe 25. The air injection causes the sewage to tumble, thereby cleaning the micro-electrolysis packing material and reducing the caking of the micro-electrolysis packing material. At the same time, the hydraulic cylinder 16 drives the water distribution plate 13 to move up and down, causing the mesh plate 14 to squeeze and loosen the micro-electrolysis packing material, increasing the gap, thereby facilitating the tumbling and cleaning of the micro-electrolysis packing material and improving the cleaning effect.

[0026] Furthermore, such as Figure 1-5 As shown, a support rod 24 is fixedly connected to the bottom of the tank 11, a support 21 is fixedly connected to the end of the support rod 24, a distribution seat 22 is installed on the top of the support 21, the air supply pipe 25 is fixedly connected to the support 21, the support 21 has a cavity inside, the air supply pipe 25 is connected to the cavity, multiple aeration pipes 23 are provided, and multiple aeration pipes 23 are fixedly connected to the surface of the distribution seat 22; the support 21 and the distribution seat 22 are rotatably connected by a bearing, a rotating shaft 32 is fixedly connected to the middle of the distribution seat 22, an impeller 31 is fixedly connected to the bottom end of the rotating shaft 32, the impeller 31 is located inside the cavity, the lower screen plate 15 is fixedly connected to the aeration pipe 23, and the lower screen plate 15 is rotatably connected to the inner wall of the tank 11; a vertical pipe 42 is fixedly connected to the top of the water distribution plate 13, and water distribution holes 41 are evenly opened at the bottom of the water distribution plate 13;

[0027] In use, compressed air enters the support 21 through the air supply pipe 25, and then enters multiple aeration pipes 23 through the internal cavity of the support 21. The air flows in the cavity and drives the impeller 31 to rotate, thereby making the rotating shaft 32 and the distribution seat 22 rotate synchronously. This causes the lower screen plate 15 to rotate in the tank 11, disturbing the micro-electrolysis packing and preventing caking. At the same time, the rotating lower screen plate 15 forms a shearing action with the fixed tank wall, further breaking up the clumps and improving the mass transfer efficiency. This allows the sewage to fully contact the packing and enhances the treatment effect. The water distribution plate 13 is connected to the water inlet pipe 12 through the vertical pipe 42, and the water distribution holes 41 at the bottom distribute water evenly, improving the uniformity of sewage distribution.

[0028] Furthermore, such as Figure 1-5 As shown, the top of the lower mesh plate 15 is fixed with an arc-shaped blade 5, and multiple arc-shaped blades 5 are arranged in a ring. When in use, when the lower mesh plate 15 rotates, the arc-shaped blades 5 sweep the sewage and micro-electrolysis packing downwards, which enhances the effect of rotation cleaning and promotes the sewage to form a spiral flow in the tank 11, effectively preventing the packing from accumulating and caking.

[0029] Furthermore, such as Figure 1-5 As shown, a backwash pipe 61 is fixedly connected to the bottom of the tank 11, and a drain pipe 62 is fixedly connected to the top of the tank 11. A drain gap 63 is provided at the bottom of the mesh plate 14 and the water distribution plate 13. During the cleaning process, the water distribution plate 13 moves upward, and the drain gap 63 and the drain pipe 62 are connected. The backwash pipe 61 is used to inject cleaning fluid for backwashing. The wastewater after backwashing is discharged from the drain pipe 62, thereby improving the cleaning effect.

[0030] Working principle: During use, the inlet pipe 12 is used to transport the incoming sewage, and the outlet pipe at the bottom is used to discharge the treated sewage. The inside of the tank 11 is equipped with a mesh plate 14 and a lower mesh plate 15. The space between the mesh plate 14 and the lower mesh plate 15 is filled with micro-electrolysis packing material, which is iron-carbon micro-electrolysis packing material. When the wastewater flows through it, an electrochemical reaction occurs, effectively degrading organic pollutants. In conjunction with the bottom aeration pipe 23, air is introduced through the air supply pipe 25. The air injection causes the sewage to tumble, thereby cleaning the micro-electrolysis packing material and reducing the caking of the micro-electrolysis packing material. At the same time, the hydraulic cylinder 16 drives the water distribution plate 13 to move up and down, causing the mesh plate 14 to squeeze and loosen the micro-electrolysis packing material, increasing the gap, thereby facilitating the tumbling and cleaning of the micro-electrolysis packing material and improving the cleaning effect.

[0031] In use, compressed air enters the support 21 through the air supply pipe 25, and then enters multiple aeration pipes 23 through the internal cavity of the support 21. The air flows in the cavity and drives the impeller 31 to rotate, thereby making the rotating shaft 32 and the distribution seat 22 rotate synchronously. This drives the lower screen plate 15 to rotate in the tank 11, disturbing the micro-electrolysis packing and preventing caking. At the same time, the rotating lower screen plate 15 forms a shearing action with the fixed tank wall, further breaking up the clumps and improving the mass transfer efficiency. This allows the sewage to fully contact the packing and enhances the treatment effect. The water distribution plate 13 is connected to the water inlet pipe 12 through the vertical pipe 42, and the water distribution holes 41 at the bottom distribute water evenly, improving the uniformity of sewage distribution.

[0032] During use, as the lower mesh plate 15 rotates, the arc-shaped blades 5 sweep the sewage and micro-electrolysis packing downwards, enhancing the effect of rotational cleaning. At the same time, it promotes the spiral flow of sewage in the tank 11, effectively preventing the packing from accumulating and caking. During the cleaning process, the water distribution plate 13 moves upwards, and the drainage gap 63 and the drainage pipe 62 are connected. The backwash pipe 61 is used to inject cleaning for backwashing. The sewage after backwashing is discharged from the drainage pipe 62, improving the cleaning effect.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A micro-electrolysis device for treating electroplating wastewater, comprising a tank (11), wherein a top mesh plate (14) and a bottom mesh plate (15) are installed inside the tank (11), and micro-electrolysis filler is filled between the top mesh plate (14) and the bottom mesh plate (15), an outlet pipe is fixedly connected to the bottom of the tank (11), and an inlet pipe (12) is fixedly connected to the top of the tank (11); characterized in that: An aeration pipe (23) is installed at the bottom of the tank (11), and an air supply pipe (25) connected to the aeration pipe (23) is fixedly connected to the bottom of the tank (11); a water distribution plate (13) is slidably connected inside the tank (11), and a mesh plate (14) is fixedly connected to the bottom of the water distribution plate (13); a hydraulic cylinder (16) is fixedly connected to the top of the tank (11), and the output end of the hydraulic cylinder (16) is fixedly connected to the water distribution plate (13).

2. The micro-electrolysis device for treating electroplating wastewater according to claim 1, characterized in that: A support rod (24) is fixedly connected to the bottom of the tank (11), and a support (21) is fixedly connected to the end of the support rod (24). A distribution seat (22) is installed on the top of the support (21). The air supply pipe (25) is fixedly connected to the support (21). The support (21) has a cavity inside. The air supply pipe (25) is connected to the cavity. Multiple aeration pipes (23) are provided. Multiple aeration pipes (23) are fixedly connected to the surface of the distribution seat (22).

3. The micro-electrolysis device for treating electroplating wastewater according to claim 2, characterized in that: The support (21) and the distribution seat (22) are rotatably connected by bearings. A rotating shaft (32) is fixedly connected to the middle of the distribution seat (22). An impeller (31) is fixedly connected to the bottom end of the rotating shaft (32). The impeller (31) is located inside the cavity. The lower screen plate (15) is fixedly connected to the aeration pipe (23). The lower screen plate (15) is rotatably connected to the inner wall of the tank body (11).

4. The micro-electrolysis device for treating electroplating wastewater according to claim 3, characterized in that: The top of the water distribution plate (13) is fixed with a vertical pipe (42), and the bottom of the water distribution plate (13) is evenly provided with water distribution holes (41).

5. The micro-electrolysis device for treating electroplating wastewater according to claim 4, characterized in that: The top of the lower mesh plate (15) is fixed with an arc-shaped blade (5), and multiple arc-shaped blades (5) are arranged in a ring.

6. The micro-electrolysis device for treating electroplating wastewater according to claim 5, characterized in that: The bottom of the tank (11) is fixedly connected to a backwash pipe (61), the top of the tank (11) is fixedly connected to a drain pipe (62), and the bottom of the mesh plate (14) and the water distribution plate (13) are provided with a drain gap (63).

Images