Industrial wastewater closed-loop recovery device
By combining electrocoagulation, sedimentation, and filtration with deep purification in an adsorption tank, the problem of substandard water quality in traditional wastewater treatment is solved, achieving efficient closed-loop recycling of industrial wastewater and improving water resource utilization and treatment accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI ZIDI LAB TECH CO LTD
- Filing Date
- 2026-04-03
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional industrial wastewater treatment methods result in substandard water quality that cannot be reused in production, forcing factories to continuously consume fresh tap water, leading to serious water waste. Furthermore, the various stages of the process are independent and disconnected, making it prone to problems such as leaks and untimely treatment.
The system employs a three-stage combined treatment process consisting of an electrocoagulation tank, a sedimentation module, and a filtration module. This process, combined with deep purification in an adsorption tank, forms a closed-loop recovery system. The electrocoagulation module generates flocculation, the sedimentation module settles impurities, the filtration module separates impurities, and the adsorption tank performs deep purification.
It significantly improves the precision of wastewater treatment, achieves a water resource utilization rate of over 95%, and allows purified water to be directly reused in production, reducing water waste, avoiding the risk of fines for exceeding discharge standards, and realizing closed-loop recycling.
Smart Images
Figure CN122010357A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of recycling equipment technology, and in particular to a closed-loop recycling device for industrial wastewater. Background Technology
[0002] Industrial wastewater recycling equipment is a complete system that uses a combination of physical, chemical, biological, and membrane separation processes to remove pollutants from wastewater and treat it to meet reuse standards, thereby achieving water resource recycling, emission reduction, and energy conservation.
[0003] Traditional wastewater treatment involves collecting factory wastewater, sieving it through a sieve to remove large impurities, allowing it to settle, and then treating it using biological or filtration methods until it meets standards before discharging it directly.
[0004] The inventors discovered that current industrial wastewater treatment generally adopts a single process of "collection-treatment-discharge". The treated wastewater cannot be reused for production because impurities are not completely removed and the water quality does not meet the standards. As a result, factories need to continuously consume fresh tap water, which leads to serious waste of water resources. Furthermore, each link is independent and disconnected, and there is a lack of connection between wastewater collection, treatment and discharge, which can easily lead to problems such as leakage and untimely treatment, resulting in high environmental compliance risks. Summary of the Invention
[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as traditional treatment methods that do not consider recycling, which leads to factories continuously consuming fresh tap water and causing serious waste of water resources. Therefore, this invention proposes a closed-loop industrial wastewater recycling device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: It includes an electrocoagulation tank, an auxiliary structure, and a sludge discharge valve. The inner wall of the electrocoagulation tank is provided with a recovery structure, which includes an electrocoagulation component, a sedimentation component, and a filtration component. The electrocoagulation component includes two mounting brackets, which are fixedly connected to the electrocoagulation tank. Electrode components are mounted on the electrocoagulation tank via the two mounting brackets. A water outlet is provided on one side of the electrocoagulation tank. The sedimentation component includes a sedimentation tank, which is fixedly connected to the electrocoagulation tank. A sludge discharge port is provided on the bottom wall of the sedimentation tank. An overflow weir, which is a sawtooth overflow weir, is installed on the side of the sedimentation tank away from the water outlet. The filtration assembly includes a filtration tank, which is fixedly connected to a sedimentation tank via an auxiliary structure. The filtration tank is connected to an overflow weir. Four connecting plates are fixedly connected to the inner wall of the filtration tank, and a loading plate is fixedly connected to the four connecting plates. A coarse filter screen is installed on the lower surface of the loading plate. A discharge port is provided on the bottom wall of the filtration tank. An auxiliary weir is installed on the side of the filtration tank away from the sedimentation tank, and the auxiliary weir abuts against the coarse filter screen. An adsorption tank is connected to the filtration tank via an auxiliary structure. A return pipe is connected to the outlet of the adsorption pipe, and the return pipe is fixedly connected to an electrocoagulation tank. Sludge discharge valves are installed in the filtration tank and the sedimentation tank respectively via the auxiliary structure.
[0007] The effects achieved by the above components are as follows: by adding a recycling structure, and by using the three-stage combination of electrocoagulation → sedimentation → filtration, the removal of impurities is more thorough than simple sedimentation and filtration. After further purification by the adsorption tank, the precision of wastewater treatment is greatly improved, the purified water can be directly reused in production, the water resource utilization rate is over 95%, saving on tap water costs, and completely avoiding the risk of fines for exceeding pollution discharge standards, thus achieving a closed-loop effect.
[0008] Preferably, a fine filter screen is installed on the lower surface of the mounting plate, the fine filter screen is located inside the coarse filter screen, the fine filter screen and the coarse filter screen are fixedly connected to a shielding frame, and the inner wall of the shielding frame is fixedly connected to an auxiliary weir.
[0009] The effect achieved by the above components is as follows: by adding a fine filter and a coarse filter to form a double-layer filtration structure, the coarse filter can first intercept larger particulate impurities in the wastewater, such as suspended silt and fibrous materials, to prevent them from clogging the subsequent fine filter. The fine filter can further filter out smaller colloidal particles and fine suspended matter, significantly improving the filtration accuracy.
[0010] Preferably, a first support frame is fixedly connected to the lower surface of the overflow weir, and the first support frame is fixedly connected to the inner wall of the sedimentation tank.
[0011] The aforementioned components achieve the following effect: by providing stable support to the overflow weir through the first support frame, they ensure that the weir can remain in a horizontal installation state under the long-term impact of wastewater and the action of gravity.
[0012] Preferably, a second support frame is fixedly connected to the lower surface of the auxiliary weir, and the second support frame is fixedly connected to the inner wall of the filter tank.
[0013] The effect achieved by the above components is that the auxiliary weir is stably supported by the second support frame, which effectively prevents the auxiliary weir from tilting or shifting under the influence of water flow impact and its own gravity in the filter pool.
[0014] Preferably, the two mounting brackets are jointly fixedly connected to an insulating plate, the insulating plate abutting against the electrode assembly, and a vibration motor is fixedly connected to the side of the insulating plate away from the electrode assembly.
[0015] The effect achieved by the above components is as follows: by adding an insulating plate and a vibration motor, the high-frequency vibration generated by the vibration motor can be transmitted to the electrode surface during the operation of the electrode assembly, which can effectively prevent flocs and impurities in the wastewater from being excessively attached and accumulated on the electrode plate, and avoid the problem of decreased electrolysis efficiency and increased energy consumption caused by excessive deposits covering the electrode.
[0016] Preferably, the auxiliary structure includes an interface that is connected to the filter tank and the adsorption tank. Two first support legs are fixedly connected to the lower surface of the electrocoagulation tank. Four second support legs are fixedly connected to the sedimentation tank and the filter tank. A reinforcing frame is fixedly connected to the filter tank and the sedimentation tank by means of screws. A conveying pipe is connected to the arc surface of the sludge discharge port. The end of the conveying pipe away from the sludge discharge port is connected to the sludge discharge valve.
[0017] The aforementioned components achieve the following effects: by adding auxiliary structures, a stable connection between the filtration tank and the adsorption tank can be achieved through the interface, ensuring that the filtered water can flow smoothly into the adsorption tank for deep treatment. The two first support legs provide stable support for the electrocoagulation tank, ensuring its stability during operation. The four second support legs jointly support the sedimentation tank and the filtration tank, keeping them at a relatively stable position at the same horizontal level, avoiding the normal flow of water due to excessive height difference or shaking. The screw and reinforcing frame further strengthen the connection between the filtration tank and the sedimentation tank, preventing structural loosening or displacement under long-term operation or water flow impact, thereby ensuring the structural stability and operational reliability of the entire device.
[0018] Preferably, the two ends of the reinforcing frame are respectively fixedly connected to the staggered frame by means of screws, and the staggered frame is fixedly connected to the sedimentation tank and the filtration tank by means of screws.
[0019] The effects achieved by the above components are as follows: by adding staggered frames, the connection between the reinforcing frame and the sedimentation tank and filtration tank can form a more stable structure, further offsetting the stress caused by water flow impact and vibration generated during equipment operation, significantly improving the deformation resistance of the connection between the filtration tank and the sedimentation tank, and ensuring the tightness of the connection and the overall rigidity of the structure during long-term use.
[0020] Preferably, the sludge discharge valve has a sludge collection structure on its sludge discharge side. The sludge collection structure includes an external component and an internal component. The external component includes a suction chamber that is connected to the sludge discharge valve. A connecting pipe is connected to one side of the suction chamber. A geared motor is fixedly connected to the side of the connecting pipe away from the suction chamber. An auxiliary pipe is connected to the side of the suction chamber away from the connecting pipe. A discharge pipe is connected to the side of the auxiliary pipe away from the suction chamber. The discharge pipe is connected to a sludge collection tank. The internal component includes a connecting frame that is fixedly connected to the output end of the geared motor. A first universal joint is fixedly connected to the side of the connecting frame away from the geared motor. A connecting rod is fixedly connected to one side of the first universal joint. A second universal joint is fixedly connected to the end of the connecting rod away from the first universal joint. A rotor rod is installed at the end of the second universal joint away from the connecting rod. The rotor rod is located inside the auxiliary pipe.
[0021] The effects achieved by the above-mentioned components are as follows: By adding a sludge collection structure, when the sludge discharge valve is opened, the connecting frame is driven to rotate by a geared motor. Through the transmission of the first universal joint, the connecting rod, and the second universal joint, the rotor rod located in the auxiliary pipe is driven to rotate. The negative pressure generated by the rotation of the rotor rod smoothly transports the sludge discharged from the sludge discharge valve to the sludge collection tank through the suction chamber, the auxiliary pipe, and the discharge pipe, avoiding sludge blockage at the discharge port and during the transportation process. At the same time, the universal joint allows the rotor rod to adapt to a certain angular deviation during rotation, ensuring the stability and reliability of the transmission, improving the efficiency and automation of sludge collection, and facilitating subsequent centralized treatment and resource utilization of sludge.
[0022] Preferably, a stator tube is fixedly connected to the inner wall of the auxiliary tube, and the rotor rod is located inside the stator tube.
[0023] The effect achieved by the above components is as follows: by adding a set tube, a stable rotational support can be provided for the rotor rod, avoiding swaying or deviation of the rotor rod due to uneven force during high-speed rotation, ensuring that it always stays in the central axis position of the auxiliary tube, thereby ensuring the stability of negative pressure generation and the smoothness of sludge transportation.
[0024] Preferably, a limiting tube is fixedly connected to the inner wall of the connecting pipe, and the limiting tube is rotatably connected to the connecting frame.
[0025] The effects achieved by the above components are as follows: by adding a limiting tube, the rotation of the connecting frame can be limited and guided, preventing radial offset or swaying when the connecting frame rotates under the drive of the geared motor, ensuring that the connecting frame always maintains stable coaxiality, thereby ensuring the smooth operation of transmission components such as the first universal joint and connecting rod, avoiding transmission jamming or component damage caused by the offset of the connecting frame, and further improving the operational stability and service life of the mud collection structure.
[0026] Compared with the prior art, the advantages and positive effects of the present invention are as follows:
[0027] 1. In this invention, the recycling structure can systematically treat pollutants in industrial wastewater, realizing the recycling and reuse of wastewater. In the electrocoagulation component, two mounting frames provide a stable installation foundation for the electrode component. After being energized, the electrode component can generate flocculation, causing colloidal particles and suspended impurities in the wastewater to lose stability and agglomerate into larger flocs, initially achieving the separation of pollutants. Then, the vibration motor can be started, and during the operation of the electrode component, the high-frequency vibration generated by the vibration motor can be transmitted to the electrode surface, effectively preventing the excessive adhesion and accumulation of flocs and impurities in the wastewater on the electrode plate. The sedimentation tank in the sedimentation component is connected to the electrocoagulation device. The flocculation tank is fixedly connected, ensuring a stable water flow transition. The inlet is used to transport the water treated by electrocoagulation to the sedimentation unit. The floc-containing wastewater flowing in from the inlet has a reduced flow velocity in the sedimentation tank, and the flocs gradually settle to the bottom of the tank by their own gravity. The settled sludge can be periodically discharged through the sludge discharge port. The sawtooth overflow weir design allows the supernatant to overflow evenly to the filter unit, effectively avoiding disturbance of the water flow in the sedimentation tank and improving the sedimentation effect. After the water flowing out of the overflow weir enters the filter tank, it first passes through the coarse filter screen below the plate. The coarse filter screen can intercept larger particulate impurities in the wastewater, such as suspended silt and fibrous materials, preventing... The filter blocks the subsequent fine filter, which further filters out smaller colloidal particles and fine suspended solids, significantly improving filtration accuracy. The baffle not only provides support for both the fine and coarse filters but also works closely with the auxiliary weir to ensure that all water flowing into the filtration tank through the overflow weir passes through the double-layer filter, preventing unfiltered water from flowing directly out from the filter edges. This ensures the stability and reliability of the filtration effect. The filtered water enters the adsorption tank through the auxiliary structure, and the discharge port facilitates the cleaning of impurities intercepted by the coarse filter. The adsorption tank can be filled with adsorption materials such as activated carbon to remove dissolved organic matter from the water. The system deeply adsorbs and purifies heavy metal ions, and the purified water is then returned to the electrocoagulation tank via a return pipe, forming a complete closed-loop recycling system. This not only greatly improves the utilization rate of industrial wastewater and reduces water waste, but also reduces the environmental pollution caused by wastewater discharge. By adding a recycling structure and using a three-stage combination of electrocoagulation, sedimentation, and filtration, the system removes impurities more thoroughly than simple sedimentation and filtration. After further deep purification by the adsorption tank, the wastewater treatment precision is greatly improved, and the purified water can be directly reused in production. The water resource utilization rate is over 95%, saving on tap water costs and completely avoiding the risk of fines for exceeding discharge standards, thus achieving a closed-loop effect.
[0028] 2. In this invention, after both the coarse and fine filters have filtered the water, larger particulate impurities in the water are effectively trapped by the coarse filter, while smaller colloidal particles and fine suspended solids are further filtered by the fine filter. At this point, the filtered water flows smoothly through the auxiliary weir. The design of the auxiliary weir abutting against the coarse filter ensures that the water flows along a specific path after passing through the filter, avoiding short-circuiting or insufficient filtration. Subsequently, the water that has undergone double-layer filtration flows smoothly into the adsorption tank through the interface in the auxiliary structure, entering the deep purification stage. During this process, the synergistic effect of the coarse and fine filters significantly improves the filtration accuracy, laying a good foundation for the subsequent deep treatment in the adsorption tank. It effectively removes most of the suspended pollutants in the water, further optimizing the water quality entering the adsorption tank. This allows the adsorption material to perform its adsorption function more efficiently, thereby ensuring that the final effluent water quality meets the requirements for production reuse.
[0029] 3. In this invention, two first support legs provide stable support for the electrocoagulation tank, ensuring its stability during operation. Four second support legs jointly support the sedimentation tank and the filtration tank, maintaining a relatively stable positional relationship between the two at the same horizontal level. This prevents the normal flow of water from being affected by excessive height differences or swaying. The screw and reinforcing frame further strengthen the connection between the filtration tank and the sedimentation tank. By adding auxiliary structures, a stable connection between the filtration tank and the adsorption tank can be achieved through the interface, ensuring that the filtered water can flow smoothly into the adsorption tank for deep treatment. This prevents structural loosening and displacement problems under long-term operation or water flow impact, thereby ensuring the structural stability and operational reliability of the entire device.
[0030] 4. In this invention, when the sediment flows from the conveying pipe into the sludge discharge valve, the sludge discharge valve opens, and the sludge collection structure begins to work. The reduction motor drives the connecting frame to rotate stably within the limiting pipe. The connecting frame drives the connecting rod through the first universal joint, and the connecting rod then drives the rotor rod located inside the stator tube to rotate through the second universal joint. Under the constraint of the stator tube, the rotor rod maintains stable coaxiality and rotates at high speed, generating a continuous and stable negative pressure in the auxiliary pipe. This smoothly draws the sludge discharged from the sludge discharge valve into the suction chamber, and transports it to the sludge collection tank through the auxiliary pipe and discharge pipe. The limiting pipe effectively prevents radial offset during the rotation of the connecting frame, ensuring the smoothness of the transmission. The stator tube provides precise rotational support for the rotor rod, preventing it from shaking and ensuring the efficiency of negative pressure generation and the smoothness of sludge transportation. The universal joint design allows the transmission process to adapt to certain installation errors and small angle changes during operation, ensuring the reliability of power transmission and avoiding jamming or component damage. The entire sludge collection process is highly automated, effectively avoiding sludge blockage at the discharge port and in the conveying pipe. By adding a sludge collection structure, when the discharge valve is opened, the connecting frame is driven to rotate by a geared motor. Through the transmission of the first universal joint, connecting rod, and second universal joint, the rotor rod located in the auxiliary pipe rotates. The negative pressure generated by the rotation of the rotor rod smoothly transports the sludge discharged from the discharge valve through the suction chamber, auxiliary pipe, and discharge pipe to the sludge collection tank, avoiding sludge blockage at the discharge port and during the conveying process. At the same time, the universal joint allows the rotor rod to adapt to a certain angular deviation during rotation, ensuring the stability and reliability of the transmission, improving the efficiency and automation of sludge collection, and facilitating subsequent centralized treatment and resource utilization of sludge. Attached Figure Description
[0031] Figure 1 This invention provides a three-dimensional structural schematic diagram of an industrial wastewater closed-loop recycling device;
[0032] Figure 2 This invention provides a bottom view of the structure of an industrial wastewater closed-loop recycling device.
[0033] Figure 3 This invention proposes a closed-loop industrial wastewater recycling device. Figure 2 Schematic diagram of partial structural disassembly;
[0034] Figure 4 This invention proposes a closed-loop industrial wastewater recycling device. Figure 3 Schematic diagram of partial structural disassembly;
[0035] Figure 5 This invention provides a schematic diagram of the recycling structure of an industrial wastewater closed-loop recycling device;
[0036] Figure 6 This invention proposes a closed-loop industrial wastewater recycling device. Figure 5Schematic diagram of partial structural disassembly;
[0037] Figure 7 This invention provides a disassembly diagram of the electrocoagulation component of an industrial wastewater closed-loop recycling device;
[0038] Figure 8 This invention proposes a closed-loop industrial wastewater recycling device. Figure 7 Schematic diagram of a partial structure;
[0039] Figure 9 This invention provides a partial structural disassembly diagram of the sedimentation component of an industrial wastewater closed-loop recycling device;
[0040] Figure 10 This invention proposes a closed-loop industrial wastewater recycling device. Figure 6 Schematic diagram of partial structural disassembly;
[0041] Figure 11 This invention proposes a closed-loop industrial wastewater recycling device. Figure 10 Schematic diagram of partial structural disassembly;
[0042] Figure 12 This invention provides a schematic diagram of the disassembly of the filter assembly of an industrial wastewater closed-loop recycling device.
[0043] Figure 13 A cross-sectional view of the filter component of an industrial wastewater closed-loop recycling device is provided for this invention.
[0044] Figure 14 This invention provides a partial structural diagram of the filter assembly of an industrial wastewater closed-loop recycling device.
[0045] Figure 15 This invention proposes a closed-loop industrial wastewater recycling device. Figure 14 Schematic diagram of partial structural disassembly;
[0046] Figure 16 This invention provides a schematic diagram of the sludge collection structure of a closed-loop industrial wastewater recycling device.
[0047] Figure 17 This invention proposes a closed-loop industrial wastewater recycling device. Figure 16 Schematic diagram of a partial structure;
[0048] Figure 18 This invention proposes a closed-loop industrial wastewater recycling device. Figure 17 Cross-sectional view;
[0049] Figure 19 This invention provides a schematic diagram of the sludge collection structure of a closed-loop industrial wastewater recycling device.
[0050] Figure 20 This invention proposes a closed-loop industrial wastewater recycling device. Figure 19 Schematic diagram of partial structural disassembly.
[0051] Legend: 1. Electrocoagulation tank; 2. Recovery structure; 21. Electrocoagulation assembly; 211. Mounting frame; 212. Electrode assembly; 213. Insulating plate; 214. Vibrating motor; 215. Water outlet; 22. Sedimentation assembly; 221. Sedimentation tank; 222. Sludge discharge port; 223. Overflow weir; 224. First support frame; 23. Filter assembly; 231. Filter tank; 232. Connecting plate; 233. Mounting plate; 234. Coarse filter screen; 235. Fine filter screen; 236. Auxiliary weir; 237. Second support frame; 238. Baffle frame; 239. Discharge port; 3. Auxiliary 31. Structure; 32. Connecting interface; 33. Reinforcing frame; 34. Staggered frame; 35. First support leg; 36. Second support leg; 4. Conveying pipe; 4. Sludge collection structure; 41. External components; 411. Suction chamber; 412. Connecting pipe; 413. Gear motor; 414. Auxiliary pipe; 415. Discharge pipe; 416. Sludge collection tank; 42. Internal components; 421. Connecting frame; 422. First universal joint; 423. Connecting rod; 424. Rotor rod; 425. Stator tube; 426. Limiting pipe; 427. Second universal joint; 5. Adsorption tank; 6. Sludge discharge valve; 7. Return pipe. Detailed Implementation
[0052] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0053] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.
[0054] Example 1, as Figure 1-20 As shown, the present invention provides an industrial wastewater closed-loop recycling device, including an electrocoagulation tank 1, an auxiliary structure 3 and a sludge discharge valve 6. The inner wall of the electrocoagulation tank 1 is provided with a recycling structure 2, and the sludge discharge valve 6 is provided with a sludge collection structure 4 on the sludge discharge side.
[0055] The following section will explain the specific setup and function of its recycling structure 22, auxiliary structure 33, and sludge collection structure 44.
[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16As shown, the recycling structure 2 includes an electrocoagulation assembly 21, a sedimentation assembly 22, and a filtration assembly 23. The electrocoagulation assembly 21 includes two mounting brackets 211, which are fixedly connected to the electrocoagulation tank 1. Electrode assemblies 212 are installed in the electrocoagulation tank 1 via the two mounting brackets 211. A water outlet 215 is provided on one side of the electrocoagulation tank 1. The sedimentation assembly 22 includes a sedimentation tank 221, which is fixedly connected to the electrocoagulation tank 1. A sludge discharge port 222 is provided on the bottom wall of the sedimentation tank 221. An overflow weir 223 is installed on the side of the sedimentation tank 221 away from the water outlet 215. The overflow weir 223 is a sawtooth overflow weir 223. The filtration assembly... 23 includes a filter tank 231, which is fixedly connected to a sedimentation tank 221 via an auxiliary structure 3. The filter tank 231 is connected to an overflow weir 223. Four connecting plates 232 are fixedly connected to the inner wall of the filter tank 231. The four connecting plates 232 are jointly fixedly connected to a loading plate 233. A coarse filter screen 234 is installed on the lower surface of the loading plate 233. A discharge port 239 is opened on the bottom wall of the filter tank 231. An auxiliary weir 236 is installed on the side of the filter tank 231 away from the sedimentation tank 221. The auxiliary weir 236 abuts against the coarse filter screen 234. An adsorption tank 5 is connected to the filter tank 231 via the auxiliary structure 3. The outlet of the adsorption pipe is connected to... A return pipe 7 is connected to the electrocoagulation tank 1. A sludge discharge valve 6 is installed on the filter tank 231 and sedimentation tank 221 via an auxiliary structure 3. A fine filter screen 235 is installed on the lower surface of the mounting plate 233, located inside the coarse filter screen 234. The fine filter screen 235 and the coarse filter screen 234 are fixedly connected to a baffle frame 238. The inner wall of the baffle frame 238 is fixedly connected to an auxiliary weir 236. The fine filter screen 235 and the coarse filter screen 234 form a double-layer filtration structure. The coarse filter screen 234 can first intercept larger particulate impurities in the wastewater, such as suspended silt and fibrous materials, preventing them from clogging the subsequent fine filter screen 235. 235 can further filter out colloidal particles and fine suspended matter of smaller diameter, significantly improving filtration accuracy. The lower surface of the auxiliary weir 236 is fixedly connected to a second support frame 237, which is fixedly connected to the inner wall of the filter tank 231. The second support frame 237 provides stable support for the auxiliary weir 236, effectively preventing the auxiliary weir 236 from tilting or shifting under the impact of water flow in the filter tank 231 and its own gravity. The two mounting frames 211 are fixedly connected to an insulating plate 213, which abuts against the electrode assembly 212. A vibration motor 214 is fixedly connected to the side of the insulating plate 213 away from the electrode assembly 212.
[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16 As shown, the auxiliary structure 3 includes an interface 31, which is connected to the filter tank 231 and the adsorption tank 5. Two first support legs 34 are fixedly connected to the lower surface of the electrocoagulation tank 1. Four second support legs 35 are fixedly connected to the sedimentation tank 221 and the filter tank 231. A reinforcing frame 32 is fixedly connected to the filter tank 231 and the sedimentation tank 221 by means of screws. A conveying pipe 36 is connected to the arc surface of the sludge discharge port 222. The end of the conveying pipe 36 away from the sludge discharge port 222 is connected to the sludge discharge valve 6. Two ends of the reinforcing frame 32 are fixedly connected to staggered frames 33 by means of screws. The staggered frames 33 are fixedly connected to the sedimentation tank 221 and the filter tank 231 by means of screws. The staggered frames 33 can make the connection between the reinforcing frame 32 and the sedimentation tank 221 and the filter tank 231 form a more stable structure, further offsetting the stress caused by water flow impact and vibration generated during equipment operation, and significantly improving the deformation resistance of the connection between the filter tank 231 and the sedimentation tank 221.
[0058] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16As shown, the sludge collection structure 4 includes an external component 41 and an internal component 42. The external component 41 includes a suction chamber 411, which is connected to a sludge discharge valve 6. A connecting pipe 412 is connected to one side of the suction chamber 411. A reduction motor 413 is fixedly connected to the side of the connecting pipe 412 away from the suction chamber 411. An auxiliary pipe 414 is connected to the side of the suction chamber 411 away from the connecting pipe 412. A discharge pipe 415 is connected to the side of the auxiliary pipe 414 away from the suction chamber 411. The discharge pipe 415 is connected to a sludge collection tank 416. The internal component 42 includes a connecting frame 421, which is connected to the output end of the reduction motor 413. A first universal joint 422 is fixedly connected to the side of the connecting frame 421 away from the geared motor 413. A connecting rod 423 is fixedly connected to one side of the first universal joint 422. A second universal joint 427 is fixedly connected to the end of the connecting rod 423 away from the first universal joint 422. A rotor rod 424 is installed at the end of the second universal joint 427 away from the connecting rod 423. The rotor rod 424 is located inside the auxiliary tube 414. A stator tube 425 is fixedly connected to the inner wall of the auxiliary tube 414. The rotor rod 424 is located inside the stator tube 425. A limit tube 426 is fixedly connected to the inner wall of the connecting tube 412. The limit tube 426 is rotatably connected to the connecting frame 421. The effect achieved by the above components is as follows: by adding the limiting tube 426, the rotation of the connecting frame 421 can be limited and guided, preventing the connecting frame 421 from radially offset or shaking when it rotates under the drive of the reduction motor 413, ensuring that the connecting frame 421 always maintains stable coaxiality, thereby ensuring the smooth operation of transmission components such as the first universal joint 422 and the connecting rod 423, avoiding transmission jamming or component damage caused by the offset of the connecting frame 421, and further improving the operational stability and service life of the mud collection structure 4.
[0059] The overall working principle is as follows: the recycling structure 2 can systematically treat pollutants in industrial wastewater, realizing the recycling and reuse of wastewater. In the electrocoagulation component 21, two mounting brackets 211 provide a stable installation foundation for the electrode component 212. After being energized, the electrode component 212 can generate flocculation, causing colloidal particles and suspended impurities in the wastewater to lose stability and agglomerate into larger flocs, initially achieving the separation of pollutants. Then, the vibration motor 214 can be started, and during the operation of the electrode component 212, the high-frequency vibration generated by the vibration motor 214 is transmitted to the electrode surface, effectively preventing the flocs and impurities in the wastewater from excessively adhering and accumulating on the electrode plate. The sedimentation tank 22 in the sedimentation component 22... 1. Fixedly connected to the electrocoagulation tank 1, ensuring a stable water flow transition. The inlet 215 is used to transport the water treated by electrocoagulation to the sedimentation component 22. The floc-containing wastewater flowing in from the inlet 215 experiences a reduced flow velocity within the sedimentation tank 221, and the flocs gradually settle to the bottom due to their own gravity. The settled sludge can be periodically discharged through the sludge discharge port 222. The serrated overflow weir 223 design allows the supernatant to overflow evenly into the filter component 23, effectively avoiding disturbance of the water flow within the sedimentation tank 221 and improving the sedimentation effect. The water flowing out of the overflow weir 223 enters the filter tank 231 and first passes through the coarse filter screen 234 below the loading plate 233. The coarse filter screen 234 can first intercept larger particulate impurities in the wastewater, such as… Suspended silt and fibrous materials are prevented from clogging the subsequent fine filter screen 235. The fine filter screen 235 further filters out smaller colloidal particles and fine suspended solids, significantly improving filtration accuracy. The shielding frame 238 not only provides fixed support for the fine filter screen 235 and the coarse filter screen 234, but also works closely with the auxiliary weir 236 to ensure that all water flowing into the filtration tank 231 through the overflow weir 223 passes through the double-layer filter screen, preventing unfiltered water from flowing directly out from the edge of the filter screen, thus ensuring the stability and reliability of the filtration effect. The filtered water enters the adsorption tank 5 through the auxiliary structure 3, and the discharge port 239 facilitates the cleaning of impurities intercepted by the coarse filter screen 234. It can be filled with adsorption materials such as activated carbon to deeply adsorb and purify dissolved organic matter and heavy metal ions in water. The purified water is then returned to the electrocoagulation tank 1 through the return pipe 7, thus forming a complete closed-loop recycling system. This not only greatly improves the utilization rate of industrial wastewater and reduces water waste, but also reduces the pollution of the environment caused by wastewater discharge. By adding the recycling structure 2, and using the three-stage combination of electrocoagulation → sedimentation → filtration, the impurity removal is more thorough than simple sedimentation and filtration. After further deep purification by the adsorption tank 5, the wastewater treatment precision is greatly improved. The purified water can be directly reused in production, with a water resource utilization rate of over 95%, saving on tap water costs and completely avoiding the risk of fines for exceeding discharge standards, thus achieving a closed-loop effect.
[0060] After both the coarse filter 234 and the fine filter 235 have filtered the water, larger particles in the water are effectively trapped by the coarse filter 234, while smaller colloidal particles and fine suspended solids are further filtered by the fine filter 235. At this point, the filtered water flows smoothly through the auxiliary weir 236. The design of the auxiliary weir 236 abutting against the coarse filter 234 ensures that the water flows along a specific path after passing through the filter, avoiding short-circuiting or insufficient filtration. Subsequently, the water that has undergone double-layer filtration flows smoothly into the adsorption tank 5 through the interface 31 in the auxiliary structure 3, entering the deep purification stage. During this process, the synergistic effect of the coarse filter 234 and the fine filter 235 significantly improves the filtration accuracy, laying a good foundation for the subsequent deep treatment in the adsorption tank 5. It effectively removes most of the suspended pollutants in the water, further optimizing the water quality entering the adsorption tank 5, which is conducive to the adsorption material playing an adsorption role more efficiently, thereby ensuring that the final effluent water quality can meet the requirements for production reuse.
[0061] Two first support legs 34 provide stable support for the electrocoagulation tank 1, ensuring its stability during operation. Four second support legs 35 jointly support the sedimentation tank 221 and the filter tank 231, keeping them at a relatively stable position at the same horizontal level. This prevents the normal flow of water from being affected by excessive height difference or swaying. The screw and reinforcing frame 32 further strengthen the connection between the filter tank 231 and the sedimentation tank 221. By adding an auxiliary structure 3, a stable connection between the filter tank 231 and the adsorption tank 5 can be achieved through the interface 31, ensuring that the filtered water can flow smoothly into the adsorption tank 5 for deep treatment. This prevents structural loosening and displacement problems under long-term operation or water flow impact, thereby ensuring the structural stability and operational reliability of the entire device.
[0062] When the sediment flows from the conveying pipe 36 into the sludge discharge valve 6, the sludge discharge valve 6 opens and the sludge collection structure 4 starts to work. The reduction motor 413 drives the connecting frame 421 to rotate stably in the limiting pipe 426. The connecting frame 421 drives the connecting rod 423 through the first universal joint 422. The connecting rod 423 then drives the rotor rod 424 located inside the stator tube 425 to rotate through the second universal joint 427. The rotor rod 424 maintains stable coaxiality and rotates at high speed under the constraint of the stator tube 425, generating a continuous and stable negative pressure in the auxiliary tube 414. This smoothly draws the sludge discharged from the sludge discharge valve 6 into the suction chamber 411, and then transports it to the sludge collection tank 416 via the auxiliary tube 414 and the discharge tube 415. The limiting tube 426 effectively prevents radial displacement when the connecting frame 421 rotates, ensuring the smoothness of the transmission. The stator tube 425 provides precise rotational support for the rotor rod 424, preventing it from shaking and ensuring the efficiency of negative pressure generation and the smoothness of sludge transportation. The universal joint allows the transmission process to adapt to certain installation errors and small angle changes during operation, ensuring the reliability of power transmission and avoiding jamming or component damage. The entire sludge collection process is highly automated, effectively avoiding sludge blockage in the discharge port 222 and conveying pipe 36. By adding a sludge collection structure 4, when the discharge valve 6 is opened, the geared motor 413 drives the connecting frame 421 to rotate. Through the transmission of the first universal joint 422, connecting rod 423 and second universal joint 427, the rotor rod 424 located in the auxiliary pipe 414 is rotated. The negative pressure generated by the rotation of the rotor rod 424 smoothly transports the sludge discharged from the discharge valve 6 through the suction chamber 411, auxiliary pipe 414 and discharge pipe 415 to the sludge collection tank 416, avoiding sludge blockage in the discharge port 222 and during the transportation process. At the same time, the universal joint allows the rotor rod 424 to adapt to a certain angular deviation during rotation, ensuring the stability and reliability of the transmission, improving the efficiency and automation of sludge collection, and facilitating subsequent centralized treatment and resource utilization of sludge.
[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.
Claims
1. An industrial wastewater closed-loop recycling device, comprising an electrocoagulation tank (1), an auxiliary structure (3), and a sludge discharge valve (6), characterized in that: The inner wall of the electrocoagulation tank (1) is provided with a recovery structure (2), which includes an electrocoagulation component (21), a sedimentation component (22), and a filtration component (23). The electrocoagulation component (21) includes two mounting brackets (211), which are fixedly connected to the electrocoagulation tank (1). The electrocoagulation tank (1) is equipped with an electrode assembly (212) by means of the two mounting brackets (211). A filter is provided on one side of the electrocoagulation tank (1). The water outlet (215), the sedimentation component (22) includes a sedimentation tank (221), the sedimentation tank (221) is fixedly connected to the electrocoagulation tank (1), the bottom wall of the sedimentation tank (221) is provided with a sludge discharge port (222), and an overflow weir (223) is installed on the side of the sedimentation tank (221) away from the water outlet (215), the overflow weir (223) is a sawtooth overflow weir (223), the filtration component (23) includes a filtration tank (231), the filtration tank (23) 1) The filter tank (231) is fixedly connected to the sedimentation tank (221) by means of an auxiliary structure (3). The filter tank (231) is connected to the overflow weir (223). The inner wall of the filter tank (231) is fixedly connected with four connecting plates (232). The four connecting plates (232) are fixedly connected to a mounting plate (233). A coarse filter screen (234) is installed on the lower surface of the mounting plate (233). The bottom wall of the filter tank (231) is provided with a discharge port (239). 31) An auxiliary weir (236) is installed on the side away from the sedimentation tank (221). The auxiliary weir (236) abuts against the coarse filter screen (234). The filter tank (231) is connected to the adsorption tank (5) by means of the auxiliary structure (3). The outlet of the adsorption pipe is connected to the return pipe (7). The return pipe (7) is fixedly connected to the electrocoagulation tank (1). The filter tank (231) and the sedimentation tank (221) are respectively equipped with sludge discharge valves (6) by means of the auxiliary structure (3).
2. The industrial wastewater closed-loop recycling device according to claim 1, characterized in that: A fine filter screen (235) is installed on the lower surface of the mounting plate (233). The fine filter screen (235) is located inside the coarse filter screen (234). The fine filter screen (235) and the coarse filter screen (234) are fixedly connected to a shielding frame (238). The inner wall of the shielding frame (238) is fixedly connected to the auxiliary weir (236).
3. The industrial wastewater closed-loop recycling device according to claim 2, characterized in that: The lower surface of the overflow weir (223) is fixedly connected to a first support frame (224), and the first support frame (224) is fixedly connected to the inner wall of the sedimentation tank (221).
4. The industrial wastewater closed-loop recycling device according to claim 3, characterized in that: The lower surface of the auxiliary weir (236) is fixedly connected to a second support frame (237), and the second support frame (237) is fixedly connected to the inner wall of the filter pool (231).
5. The industrial wastewater closed-loop recycling device according to claim 4, characterized in that: The two mounting brackets (211) are fixedly connected to an insulating plate (213), which abuts against the electrode assembly (212). A vibration motor (214) is fixedly connected to the side of the insulating plate (213) away from the electrode assembly (212).
6. The industrial wastewater closed-loop recycling device according to claim 2, characterized in that: The auxiliary structure (3) includes an interface (31), which is connected to the filter tank (231) and the adsorption tank (5). The lower surface of the electrocoagulation tank (1) is fixedly connected to two first support legs (34). The sedimentation tank (221) and the filter tank (231) are jointly fixedly connected to four second support legs (35). The filter tank (231) and the sedimentation tank (221) are jointly fixedly connected to a reinforcing frame (32) by means of a screw. The arc surface of the sludge discharge port (222) is connected to a conveying pipe (36). The end of the conveying pipe (36) away from the sludge discharge port (222) is connected to the sludge discharge valve (6).
7. The industrial wastewater closed-loop recycling device according to claim 6, characterized in that: The two ends of the reinforcing frame (32) are respectively fixedly connected to the staggered frame (33) by means of screws. The staggered frame (33) is fixedly connected to the sedimentation tank (221) and the filtration tank (231) by means of screws.
8. The industrial wastewater closed-loop recycling device according to claim 2, characterized in that: The sludge discharge valve (6) has a sludge collection structure (4) on its sludge discharge side. The sludge collection structure (4) includes an external component (41) and an internal component (42). The external component (41) includes a suction chamber (411), which is connected to the sludge discharge valve (6). A connecting pipe (412) is connected to one side of the suction chamber (411). A geared motor (413) is fixedly connected to the side of the connecting pipe (412) away from the suction chamber (411). An auxiliary pipe (414) is connected to the side of the suction chamber (411) away from the connecting pipe (412). A discharge pipe (415) is connected to the side of the auxiliary pipe (414) away from the suction chamber (411). The pipe (415) is connected to the sludge collection tank (416). The internal component (42) includes a connecting frame (421). The connecting frame (421) is fixedly connected to the output end of the geared motor (413). A first universal joint (422) is fixedly connected to the side of the connecting frame (421) away from the geared motor (413). A connecting rod (423) is fixedly connected to one side of the first universal joint (422). A second universal joint (427) is fixedly connected to the end of the connecting rod (423) away from the first universal joint (422). A rotor rod (424) is installed at the end of the second universal joint (427) away from the connecting rod (423). The rotor rod (424) is located inside the auxiliary pipe (414).
9. The industrial wastewater closed-loop recycling device according to claim 8, characterized in that: The inner wall of the auxiliary tube (414) is fixedly connected to the stator tube (425), and the rotor rod (424) is located inside the stator tube (425).
10. The industrial wastewater closed-loop recycling device according to claim 8, characterized in that: The inner wall of the connecting pipe (412) is fixedly connected to a limiting pipe (426), and the limiting pipe (426) is rotatably connected to the connecting frame (421).