A device for efficiently removing COD in electroplating wastewater

Abstract

This utility model discloses a device for efficiently removing COD from electroplating wastewater, relating to the field of electroplating wastewater treatment technology. It includes a base with a reaction tank fixedly connected to the top. The beneficial effects of this utility model are as follows: Oxidizing agents or coagulants from the storage tank can be input into the spray tank via a delivery pipe and a pump. While the stirring rollers rotate, the oxidizing agents or coagulants are continuously sprayed into the reaction tank through the spray tank, causing the wastewater to react uniformly. This destabilizes and coagulates the tiny suspended particles, colloids, and some dissolved organic matter in the wastewater into larger flocs. Through the coordinated operation of the air inlet pipe, jet nozzle, and air pump, the reaction tank is continuously injected with air. The air bubbles adsorb the coagulated flocs, and the upward force of the gas causes the flocs to float on the wastewater surface. Finally, a scraper removes the flocs into the storage tank.

Description

Technical Field

[0001] This utility model relates to the field of electroplating wastewater treatment technology, specifically to a device for efficiently removing COD from electroplating wastewater. Background Technology

[0002] Electroplating wastewater has a complex composition and fluctuates greatly due to differences in the type of plated parts and the selection of processes. It mainly contains a large number of heavy metal ions, recalcitrant organic matter and highly toxic substances. For this type of wastewater, microbial treatment of COD in the wastewater cannot be achieved. The commonly used treatment method is to oxidize the COD in the wastewater with oxidants.

[0003] Current conventional COD wastewater treatment devices are not convenient for quickly and evenly adding oxidants or coagulants into the wastewater, resulting in a slow oxidation reaction and reduced treatment efficiency. Therefore, we propose a device for efficiently removing COD from electroplating wastewater. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a device for efficiently removing COD from electroplating wastewater, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A device for efficiently removing COD from electroplating wastewater includes a base, a reaction chamber fixedly connected to the top of the base, a sludge storage tank inside the reaction chamber, a reaction tank inside the reaction chamber, a stirring roller plate rotatably connected to the inside of the reaction tank via bearings, a spraying groove inside the stirring roller plate, a connecting pipe fixedly connected to the inside of the reaction tank, an adsorption cylinder fixedly connected to the top of the base, one end of the connecting pipe extending into the inside of the adsorption cylinder, a top cover on the top of the adsorption cylinder, a rotating roller rotatably connected to the inside of the top cover via bearings, multiple rotating plates fixedly connected to the outside of the rotating roller, and activated carbon plates threadedly fixed inside the rotating plates.

[0006] Preferably, a storage tank is fixedly installed on the top of the base, and an infusion pipe is fixedly connected inside the storage tank. One end of the infusion pipe extends into the interior of the spray tank. The infusion pipe is rotatably connected to the stirring roller plate, and a liquid pump is provided on the outside of the infusion pipe. The oxidant or coagulant inside the storage tank can be input into the interior of the spray tank through the infusion pipe and the liquid pump. When the stirring roller plate rotates and stirs, it is continuously sprayed into the interior of the reaction tank through the spray tank, so that the oxidant or coagulant reacts evenly with the wastewater, causing the tiny suspended particles, colloids and some dissolved organic matter in the wastewater to destabilize and coagulate into larger flocs.

[0007] Preferably, an air pump is fixedly installed on the top of the base, and an air supply pipe is fixedly connected inside the air pump. Multiple jet nozzles are fixedly connected inside the reaction chamber, and multiple air inlet pipes are fixedly connected inside the jet nozzles. One end of each air inlet pipe extends into the interior of the reaction tank. The multiple jet nozzles are fixedly connected to the air supply pipes. Through the cooperation of the air inlet pipes, jet nozzles, and air pump, air can be continuously injected into the interior of the reaction chamber. The condensed flocs are adsorbed by the air bubbles, and the buoyancy of the gas causes the flocs to float on the surface of the wastewater. Then, a scraper scrapes the flocs into the storage tank.

[0008] Preferably, an electromechanical box is provided on the outside of the reaction chamber, and a first servo motor is fixedly installed inside the electromechanical box. The output end of the first servo motor is fixedly connected to the stirring roller plate through a coupling.

[0009] Preferably, a sliding plate is slidably connected inside the reaction chamber, and a first electric telescopic rod is fixedly installed inside the sliding plate. A scraper is fixedly connected to the output end of the first electric telescopic rod. A third electric telescopic rod is fixedly installed on the top of the reaction chamber, and the output end of the third electric telescopic rod is fixedly connected to the sliding plate. The extension and retraction of the third electric telescopic rod can drive the sliding plate to slide back and forth on the top of the reaction chamber. At the same time, the sliding plate is guided by the guide groove, guide rod, and guide block provided inside the reaction chamber. Simultaneously, the first electric telescopic rod is activated to drive the scraper to rise and fall to adjust the position of the scraper. The guide rod provided inside the sliding plate guides the scraper, thereby causing the scraper to scrape the flocs into the sludge storage tank.

[0010] Preferably, the adsorption cylinder has two corresponding sliding grooves inside, and a sliding rod is slidably connected inside the sliding groove. One end of the sliding rod is fixedly connected to the top cover. A second electric telescopic rod is fixedly installed inside the adsorption cylinder. The output end of the second electric telescopic rod is fixedly connected to the top cover. Through the cooperation of the second electric telescopic rod and the top cover, the rotating roller, rotating plate, and activated carbon plate can be raised and lowered, thereby facilitating the disassembly and replacement of the activated carbon plate.

[0011] Preferably, an electromechanical box is provided on the outer side of the top cover, and a second servo motor is fixedly installed inside the electromechanical box. The output end of the second servo motor is fixedly connected to the rotating roller through a coupling.

[0012] This invention provides a device for efficiently removing COD from electroplating wastewater, which has the following beneficial effects: 1. This highly efficient COD removal device for electroplating wastewater uses a delivery pipe and pump to input oxidant or coagulant from the storage tank into the spray tank. While the stirring rollers rotate, the oxidant or coagulant is continuously sprayed into the reaction tank through the spray tank, allowing the oxidant or coagulant to react uniformly with the wastewater. This destabilizes and coagulates the tiny suspended particles, colloids, and some dissolved organic matter in the wastewater into larger flocs. Through the coordinated operation of the air inlet pipe, jet nozzle, and air pump, the reaction tank is continuously aerated. The agglomerated flocs are adsorbed by the air bubbles, and the upward force of the gas causes the flocs to float to the surface of the wastewater. Finally, a scraper removes the flocs into the storage tank, improving the practicality of this highly efficient COD removal device for electroplating wastewater.

[0013] 2. This highly efficient COD removal device for electroplating wastewater uses a second servo motor to drive a rotating roller and multiple rotating plates and activated carbon plates to rotate. This allows the activated carbon plates to adsorb dissolved organic matter, color, odor, etc., in the wastewater, thereby further purifying the wastewater. Through the cooperation of the second electric telescopic rod and the top cover, the rotating roller, rotating plates, and activated carbon plates can be raised and lowered, facilitating the disassembly and replacement of the activated carbon plates and improving the practicality of this highly efficient COD removal device for electroplating wastewater. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the reaction chamber of this utility model; Figure 3 This is a schematic diagram of the internal structure of the adsorption cylinder of this utility model; Figure 4 This is a schematic diagram of the adsorption mechanism of this utility model.

[0015] In the diagram: 1. Base; 2. Reaction chamber; 3. Sludge storage tank; 4. Reaction tank; 5. Stirring roller plate; 6. Spraying tank; 7. First servo motor; 8. Air inlet pipe; 9. Jet nozzle; 10. Storage tank; 11. Infusion pipe; 12. Air pump; 13. Gas delivery pipe; 14. Sliding plate; 15. First electric telescopic rod; 16. Scraper; 17. Connecting pipe; 18. Adsorption cylinder; 19. Rotating roller; 20. Rotating plate; 21. Activated carbon plate; 22. Second servo motor; 23. Sliding tank; 24. Sliding rod; 25. Top cover; 26. Second electric telescopic rod; 27. Third electric telescopic rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figures 1 to 4 This utility model provides a technical solution: a device for efficiently removing COD from electroplating wastewater, including a base 1, a reaction chamber 2 fixedly connected to the top of the base 1, a sludge storage tank 3 inside the reaction chamber 2, a reaction tank 4 inside the reaction chamber 2, a stirring roller plate 5 rotatably connected to the inside of the reaction tank 4 via bearings, a spraying groove 6 inside the stirring roller plate 5, a connecting pipe 17 fixedly connected to the inside of the reaction tank 4, an adsorption cylinder 18 fixedly connected to the top of the base 1, one end of the connecting pipe 17 extending into the inside of the adsorption cylinder 18, a top cover 25 provided on the top of the adsorption cylinder 18, a rotating roller 19 rotatably connected to the inside of the top cover 25 via bearings, a plurality of rotating plates 20 fixedly connected to the outside of the rotating roller 19, and an activated carbon plate 21 threadedly fixed inside the rotating plate 20; A storage tank 10 is fixedly installed on the top of the base 1. An infusion pipe 11 is fixedly connected inside the storage tank 10. One end of the infusion pipe 11 extends into the inside of the spray tank 6. The infusion pipe 11 is rotatably connected to the stirring roller plate 5. A liquid pump is installed on the outside of the infusion pipe 11. The oxidant or coagulant inside the storage tank 10 can be input into the inside of the spray tank 6 through the infusion pipe 11 and the liquid pump. When the stirring roller plate 5 rotates and stirs, it is continuously sprayed into the inside of the reaction tank 2 through the spray tank 6, so that the oxidant or coagulant reacts evenly with the wastewater, and destabilizes and coagulates the tiny suspended particles, colloids and some dissolved organic matter in the wastewater into larger flocs. An air pump 12 is fixedly installed on the top of the base 1. An air supply pipe 13 is fixedly connected inside the air pump 12. Multiple jet nozzles 9 are fixedly connected inside the reaction chamber 2. Multiple air inlet pipes 8 are fixedly connected inside the jet nozzles 9. One end of the air inlet pipe 8 extends into the interior of the reaction tank 4. Multiple jet nozzles 9 are fixedly connected to the air supply pipe 13. Through the cooperation of the air inlet pipe 8, jet nozzles 9 and air pump 12, air can be continuously injected into the interior of the reaction chamber 2. The condensed flocs are adsorbed by the air bubbles. The upward force of the gas makes the flocs float on the surface of the wastewater. Then, the scraper 16 scrapes the flocs into the interior of the sludge storage tank 3. An electromechanical box is installed on the outside of the reaction chamber 2. The first servo motor 7 is fixedly installed inside the electromechanical box. The output end of the first servo motor 7 is fixedly connected to the stirring roller plate 5 through a coupling. A sliding plate 14 is slidably connected inside the reaction chamber 2. A first electric telescopic rod 15 is fixedly installed inside the sliding plate 14. A scraper 16 is fixedly connected to the output end of the first electric telescopic rod 15. A third electric telescopic rod 27 is fixedly installed on the top of the reaction chamber 2. The output end of the third electric telescopic rod 27 is fixedly connected to the sliding plate 14. The extension and retraction of the third electric telescopic rod 27 can drive the sliding plate 14 to slide back and forth on the top of the reaction chamber 2. At the same time, the sliding plate 14 is guided by the guide groove, guide rod, and guide block set inside the reaction chamber 2. At the same time, the first electric telescopic rod 15 is activated to drive the scraper 16 to rise and fall to adjust the position of the scraper 16. The scraper 16 is guided by the guide rod set inside the sliding plate 14, so that the scraper 16 scrapes the flocs into the inside of the sludge storage tank 3. The adsorption cylinder 18 has two corresponding sliding grooves 23 inside. A sliding rod 24 is slidably connected inside the sliding groove 23. One end of the sliding rod 24 is fixedly connected to the top cover 25. A second electric telescopic rod 26 is fixedly installed inside the adsorption cylinder 18. The output end of the second electric telescopic rod 26 is fixedly connected to the top cover 25. Through the cooperation of the second electric telescopic rod 26 and the top cover 25, the rotating roller 19, the rotating plate 20, and the activated carbon plate 21 can be raised and lowered, thereby facilitating the disassembly and replacement of the activated carbon plate 21. An electromechanical box is installed on the outside of the top cover 25. A second servo motor 22 is fixedly installed inside the electromechanical box. The output end of the second servo motor 22 is fixedly connected to the rotating roller 19 through a coupling.

[0018] In summary, this highly efficient COD removal device for electroplating wastewater involves several steps. First, the operator powers on all mechanisms. Then, oxidant or coagulant is injected into the storage tank 10 as needed. Next, wastewater is injected into the sludge storage tank 3. Then, the first servo motor 7 is activated via a remote control device to rotate the stirring roller 5. Simultaneously, a liquid pump is started, injecting the oxidant or coagulant into the spray tank 6 through the delivery pipe 11. While the stirring roller 5 agitates the wastewater, the oxidant or coagulant is sprayed into the reaction tank 4 through the spray tank 6. The oxidant or coagulant reacts uniformly with the wastewater, destabilizing and coagulating the tiny suspended particles, colloids, and some dissolved organic matter in the wastewater into larger flocs. Simultaneously, a remote control device activates air pump 12 to inject air into the air inlet pipe 8 and the nozzle 9 via air supply pipe 13. The gas is then injected into the wastewater through multiple nozzles 9, where it is adsorbed by the air bubbles. The upward force of the gas causes the flocs to float to the surface of the wastewater. Finally, the remote control device activates a third electric extension... The retracting rod 27 drives the sliding plate 14 to slide back and forth on the top of the reaction tank 2. At the same time, the sliding plate 14 is guided by the guide groove, guide rod, and guide block set inside the reaction tank 2. Simultaneously, the first electric telescopic rod 15 is activated to drive the scraper 16 to rise and fall, adjusting the position of the scraper 16. At the same time, the guide rod set inside the sliding plate 14 guides the scraper 16, so that the scraper 16 scrapes the flocs into the inside of the sludge storage tank 3. Then, the flocculated wastewater is discharged into the adsorption cylinder 1 by the liquid pump outside the connecting pipe 17 through the remote control device. Inside adsorption cylinder 18, the second servo motor 22 is activated to drive the rotating roller 19 and multiple rotating plates 20 and activated carbon plates 21 to rotate, thereby allowing the activated carbon plates 21 to adsorb dissolved organic matter, color, odor, etc. in the wastewater, thus further purifying the wastewater. Then, the wastewater is discharged from the adsorption cylinder 18 through the drain pipe. Through the cooperation of the second electric telescopic rod 26 and the top cover 25, the rotating roller 19, rotating plates 20 and activated carbon plates 21 can be raised and lowered, thereby facilitating the disassembly and replacement of activated carbon plates 21.

[0019] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or lead rod is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for efficiently removing COD from electroplating wastewater, comprising a base (1), characterized in that: A reaction chamber (2) is fixedly connected to the top of the base (1). A sludge storage tank (3) is provided inside the reaction chamber (2). A reaction tank (4) is provided inside the reaction chamber (2). A stirring roller plate (5) is rotatably connected to the inside of the reaction tank (4) through a bearing. A spraying groove (6) is provided inside the stirring roller plate (5). A connecting pipe (17) is fixedly connected to the inside of the reaction tank (4). An adsorption cylinder (18) is fixedly connected to the top of the base (1). One end of the connecting pipe (17) extends into the inside of the adsorption cylinder (18). A top cover (25) is provided on the top of the adsorption cylinder (18). A rotating roller (19) is rotatably connected to the inside of the top cover (25) through a bearing. Multiple rotating plates (20) are fixedly connected to the outside of the rotating roller (19). An activated carbon plate (21) is threadedly fixed inside the rotating plate (20).

2. The device for efficiently removing COD from electroplating wastewater according to claim 1, characterized in that: A storage box (10) is fixedly installed on the top of the base (1). An infusion pipe (11) is fixedly connected inside the storage box (10). One end of the infusion pipe (11) extends into the inside of the spray tank (6). The infusion pipe (11) is rotatably connected to the stirring roller plate (5). A liquid pump is provided on the outside of the infusion pipe (11).

3. The device for efficiently removing COD from electroplating wastewater according to claim 1, characterized in that: An air pump (12) is fixedly installed on the top of the base (1). An air supply pipe (13) is fixedly connected inside the air pump (12). Multiple jet heads (9) are fixedly connected inside the reaction chamber (2). Multiple air inlet pipes (8) are fixedly connected inside the jet heads (9). One end of the air inlet pipe (8) extends into the interior of the reaction tank (4). The multiple jet heads (9) are fixedly connected to the air supply pipe (13).

4. The device for efficiently removing COD from electroplating wastewater according to claim 1, characterized in that: An electromechanical box is provided on the outside of the reaction chamber (2), and a first servo motor (7) is fixedly installed inside the electromechanical box. The output end of the first servo motor (7) is fixedly connected to the stirring roller plate (5) through a coupling.

5. The device for efficiently removing COD from electroplating wastewater according to claim 1, characterized in that: The reaction chamber (2) is slidably connected to a sliding plate (14), and a first electric telescopic rod (15) is fixedly installed inside the sliding plate (14). A scraper (16) is fixedly connected to the output end of the first electric telescopic rod (15). A third electric telescopic rod (27) is fixedly installed on the top of the reaction chamber (2), and the output end of the third electric telescopic rod (27) is fixedly connected to the sliding plate (14).

6. The apparatus for efficiently removing COD from electroplating wastewater according to claim 1, characterized in that: The adsorption cylinder (18) has two corresponding sliding grooves (23) inside. A sliding rod (24) is slidably connected inside the sliding groove (23). One end of the sliding rod (24) is fixedly connected to the top cover (25). A second electric telescopic rod (26) is fixedly installed inside the adsorption cylinder (18). The output end of the second electric telescopic rod (26) is fixedly connected to the top cover (25).

7. The device for efficiently removing COD from electroplating wastewater according to claim 1, characterized in that: An electromechanical box is provided on the outside of the top cover (25), and a second servo motor (22) is fixedly installed inside the electromechanical box. The output end of the second servo motor (22) is fixedly connected to the rotating roller (19) through a coupling.

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