A high-efficiency electrolytic oxidation device for high-concentration organic wastewater treatment

Abstract

The utility model belongs to wastewater treatment technical field, concretely relates to a kind of high-efficiency electrolytic oxidation device for high-concentration organic wastewater treatment, including inner shell, outer shell is assembled with inner shell, inner shell separates the inside of outer shell into assembly groove and electrolytic cell, and assembly groove is between outer shell and inner shell, electrolytic cell is in the inside of inner shell, the both ends of outer shell are respectively installed with inlet pipe and drain pipe, and inlet pipe and drain pipe respectively pass through outer shell and insert to the inside of electrolytic cell, multiple blocking pieces are slidably connected in the both sides of inner shell, and the blocking piece of the both sides of inner shell is alternatively spaced distribution electrolytic cell is installed at least one electrode piece, drive mechanism is installed in assembly groove, and drive mechanism includes two fixed strips.The utility model can change flow path length flexibly according to wastewater dirt degree, shorten plate spacing when dirty water, extend path to ensure electrolysis fully;When relatively clean, increase spacing, shorten path to save energy consumption.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater. Background Technology

[0002] With the rapid development of industry, the problem of high-concentration organic wastewater discharge is becoming increasingly serious. This type of wastewater mainly comes from industries such as food processing, chemical industry, pharmaceutical industry, and papermaking. It has the characteristics of high organic matter concentration, complex composition, strong toxicity and difficulty in degradation. If high-concentration organic wastewater that has not been effectively treated is directly discharged into the environment, it will damage the ecological environment such as water bodies and soil, causing a series of problems such as eutrophication of water bodies, death of aquatic organisms, and soil pollution. At the same time, it will also accumulate and harm human health through the food chain.

[0003] Among the many technologies for treating high-concentration organic wastewater, electrolytic oxidation has become a highly regarded treatment method due to its advantages such as simple operation, relatively low energy consumption, no need to add large amounts of chemical reagents, and reduction of secondary pollution. This method uses current and electrode catalysts to promote the oxidation or reduction of organic pollutants in organic wastewater, converting them into harmless substances. However, existing electrolytic oxidation devices for treating high-concentration organic wastewater still have some problems that need to be solved in practical applications.

[0004] On the one hand, some existing devices are not effective in electrolytic oxidation of wastewater. During the treatment process, the flow path of wastewater in the device is relatively simple and the residence time is short, resulting in insufficient time for wastewater to contact the electrodes and react, and the electrolytic oxidation reaction cannot be fully carried out. For example, in some tank-type equipment, wastewater often simply flows in a straight line through the electrode area, which makes it take a long time for pollutants to migrate from a distance to the vicinity of the electrodes. The degradation effect is poor in the position far from the electrodes, and the overall degradation efficiency and effect are difficult to reach the ideal state.

[0005] On the other hand, most existing devices lack the ability to flexibly respond to wastewater with varying degrees of contamination. High-concentration organic wastewater generated by different industries or even within the same industry can vary greatly in terms of contamination and composition. However, existing electrolytic oxidation devices typically employ fixed structures and operating modes, making it impossible to adjust the flow path and residence time of the wastewater within the device according to its actual contamination level. When treating heavily contaminated wastewater, the inability to effectively extend the flow path and residence time leads to insufficient electrolytic oxidation. Conversely, when treating relatively "clean" wastewater, the inability to shorten the flow path results in a waste of energy and processing time.

[0006] Therefore, developing a high-efficiency electrolytic oxidation device that can effectively extend the wastewater electrolytic oxidation time and flexibly adjust the wastewater flow path according to the degree of wastewater contamination is of great practical significance. Utility Model Content

[0007] The purpose of this invention is to provide a high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater. It can flexibly change the flow path length according to the degree of contamination of the wastewater. When the wastewater is dirty, the plate spacing is shortened and the path is extended to ensure sufficient electrolysis; when the wastewater is relatively clean, the spacing is increased and the path is shortened to save energy.

[0008] The specific technical solution adopted by this utility model is as follows:

[0009] A high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater includes an inner shell, an outer shell containing the inner shell, the inner shell dividing the interior of the outer shell into an assembly tank and an electrolytic tank, the assembly tank being located between the outer shell and the inner shell, and the electrolytic tank being located inside the inner shell.

[0010] The outer shell is equipped with an inlet pipe and a drain pipe at its two ends, respectively, and the inlet pipe and the drain pipe pass through the outer shell and are inserted into the electrolytic cell. Multiple baffles are slidably connected to both sides of the inner shell, and the baffles on both sides of the inner shell are distributed alternately. At least one electrode plate is installed in the electrolytic cell, and a drive mechanism is installed in the assembly slot.

[0011] The driving mechanism includes two fixing bars, which are respectively fixedly connected to the blocking plates on both sides of the inner shell. A connecting plate is fixed to the same end of each of the two fixing bars. A threaded rod is threadedly connected to each of the two connecting plates, and the threads of the two threaded rods have opposite directions. The two threaded rods are connected to each other by a connecting bar. Both threaded rods are rotatably connected to the outer shell. A motor is installed in the assembly slot, and the output end of the motor drives one of the threaded rods to rotate through a connecting structure.

[0012] The connection structure includes a worm gear, which is mounted on the output end of the motor and rotatably connected to the housing. A worm wheel is meshed with the outer side of the worm gear and the worm wheel is fixed to the outer side of the threaded rod.

[0013] A water channel is provided inside the barrier plate and near the top.

[0014] The outer side of the blocking plate is provided with a soft pad, and the soft pad is made of plastic.

[0015] A top cover is mounted on the top of the housing, and the top cover is hinged to the housing.

[0016] At least one mounting tube is installed on the inner wall of the inner shell and on both sides of each of the blocking plates. A sliding rod is slidably connected inside the mounting tube. A gasket is fixed to one end of the sliding rod near the blocking plate, and the gasket is in contact with the blocking plate and the inner shell. A spring is installed inside the mounting tube and is connected to the sliding rod.

[0017] The technical effects achieved by this utility model are as follows:

[0018] This invention, by setting adjustable baffles, can flexibly change the flow path length according to the degree of contamination of wastewater. When the water is dirty, the baffle spacing is shortened and the path is extended to ensure sufficient electrolysis; when the water is relatively clean, the spacing is increased and the path is shortened to save energy. This not only improves the treatment effect of high-concentration organic wastewater, but also improves the applicability and operating efficiency of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the outer shell and inner shell in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure between the blocking plate, the fixing strip, and the water passage in this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure between the blocking plate, spring and sliding rod in this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Outer shell; 2. Inlet pipe; 3. Drain pipe; 4. Inner shell; 5. Assembly slot; 6. Electrolytic cell; 7. Electrode plate; 8. Blocking plate; 9. Fixing strip; 10. Threaded rod; 11. Worm gear; 12. Worm; 13. Motor; 14. Mounting pipe; 15. Sliding rod; 16. Washer; 17. Spring; 18. Water passage groove; 19. Connecting plate; 20. Connecting strip. Detailed Implementation

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0027] like Figures 1-5As shown, a high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater includes an inner shell 4, which is installed inside an outer shell 1. The inner shell 4 divides the interior of the outer shell 1 into an assembly tank 5 and an electrolytic cell 6. The assembly tank 5 is located between the outer shell 1 and the inner shell 4, and the electrolytic cell 6 is located inside the inner shell 4. The assembly tank 5 is used to install the drive mechanism described below, avoiding its installation on the outside and ensuring the safety of the drive mechanism. The wastewater that needs to be electrolyzed can be processed in the electrolytic cell 6.

[0028] Water inlet pipe 2 and drain pipe 3 are installed at both ends of the outer shell 1, and water inlet pipe 2 and drain pipe 3 pass through the outer shell 1 and are inserted into the electrolytic cell 6. Multiple baffles 8 are slidably connected on both sides of the inner shell 4, and the baffles 8 on both sides of the inner shell 4 are distributed alternately. At least one electrode plate 7 is installed in the electrolytic cell 6.

[0029] Wastewater is introduced into the electrolytic cell 6 through the inlet pipe 2, and the wastewater is electrolyzed and oxidized through the electrode plates 7. The oxidized wastewater is discharged through the drain pipe 3 for the next stage of filtration, while the remaining impurities remain in the electrolytic cell 6. A top cover is installed on the top of the outer shell 1, and the top cover is hinged to the outer shell 1. By opening the top cover, the impurities inside the electrolytic cell 6 can be cleaned. The baffle plate 8 is set to block the flow path of the wastewater, thereby making the wastewater electrolyze for a longer time and ensuring the effect of electrolysis oxidation.

[0030] A drive mechanism is installed inside assembly slot 5.

[0031] Refer to Appendix 2- Figure 4 The drive mechanism includes two fixing bars 9, which are fixedly connected to the blocking plates 8 on both sides of the inner shell 4 respectively. A connecting plate 19 is fixed to the same end of each of the two fixing bars 9. A threaded rod 10 is threadedly connected to each of the two connecting plates 19, and the threads of the two threaded rods 10 are opposite. The two threaded rods 10 are connected by a connecting bar 20. Both threaded rods 10 are rotatably connected to the outer shell 1. A motor 13 is installed in the assembly slot 5. The output end of the motor 13 drives one of the threaded rods 10 to rotate through the connecting structure.

[0032] When driven by motor 13, the two threaded rods 10 can be driven to rotate synchronously through the connecting structure. Taking one of the threaded rods 10 as an example, the threaded rod 10 is threadedly connected to the connecting plate 19, and through the fixed connection of the connecting plate 19, the fixing strip 9, and the blocking plate 8, the fixing strip 9 and the connecting plate 19 can drive the blocking plate 8 to move back and forth inside the inner shell 4. Through the synchronous rotation of the two threaded rods 10, the blocking plates 8 on both sides of the inner shell 4 move synchronously toward each other or away from each other. When the wastewater is dirty, the blocking plates 8 on both sides can be moved toward each other. The obstruction of the wastewater flow is strengthened by pushing the obstruction plates 8 in a direction that brings them closer together, thus lengthening the wastewater flow path. When the wastewater is not too dirty, the obstruction plates 8 on both sides can be pushed in a direction that moves them away from each other to reduce the obstruction of the wastewater flow and shorten the flow path. This allows the device to adjust the length of the obstruction plates 8 according to the degree of dirtiness of the wastewater. When there is a lot of wastewater in the inner shell 4, the water passage trough 18 can be set to allow some of the wastewater to flow directly over the obstruction plates 8 and forward for auxiliary water passage.

[0033] See attached document Figure 4 The connecting structure includes a worm gear 12, which is mounted on the output end of the motor 13 and rotatably connected to the housing 1. A worm wheel 11 is meshed with the outer side of the worm gear 12 and fixed to the outer side of the threaded rod 10. By driving the motor 13, the output end of the motor 13 drives the worm gear 12 to rotate, and the worm gear 12 drives the worm wheel 11 and the threaded rod 10 to rotate, thereby enabling the motor 13 to drive the threaded rod 10 to rotate. Due to the self-locking mechanism of the worm wheel 11 and the worm gear 12, after the motor 13 has adjusted the blocking plate 8, the blocking plate 8 is prevented from moving back and forth due to water pressure or other conditions.

[0034] At least one mounting tube 14 is installed on the inner wall of the inner shell 4 on both sides of each blocking plate 8. A sliding rod 15 is slidably connected inside the mounting tube 14. A gasket 16 is fixed to one end of the sliding rod 15 near the blocking plate 8, and the gasket 16 is in contact with the blocking plate 8 and the inner shell 4. A spring 17 is installed inside the mounting tube 14 and is connected to the sliding rod 15. This arrangement allows the spring 17 to push the gasket 16 to be in contact with the blocking plate 8, thereby making the gasket 16 and the blocking plate 8 in contact. The close fit between the plate 8 and the inner shell 4 further avoids the risk of wastewater leakage. Furthermore, a soft pad made of plastic is provided on the outer side of the blocking plate 8, which enhances the sealing between the blocking plate 8 and the inner shell 4, preventing wastewater from leaking into the assembly groove 5. This arrangement also prevents the blocking plate 8 from undergoing an electrolytic oxidation reaction with the electrode plate 7, ensuring the service life of the blocking plate 8. The inner wall of the inner shell 4 and the structure inside the inner shell 4, such as the mounting tube 14, also utilize the same or similar design.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater, comprising a shell (1), characterized in that: The outer shell (1) is fitted with an inner shell (4), which divides the interior of the outer shell (1) into an assembly groove (5) and an electrolytic cell (6). The assembly groove (5) is located between the outer shell (1) and the inner shell (4), and the electrolytic cell (6) is located inside the inner shell (4). Water inlet pipe (2) and drain pipe (3) are respectively installed at both ends of the outer shell (1), and the water inlet pipe (2) and the drain pipe (3) pass through the outer shell (1) and are inserted into the electrolytic cell (6). Multiple baffles (8) are slidably connected to both sides of the inner shell (4), and the baffles (8) on both sides of the inner shell (4) are distributed alternately. At least one electrode plate (7) is installed in the electrolytic cell (6), and a drive mechanism is installed in the assembly groove (5).

2. The high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater according to claim 1, characterized in that: The driving mechanism includes two fixing bars (9), and the two fixing bars (9) are respectively fixedly connected to the blocking plates (8) on both sides of the inner shell (4). A connecting plate (19) is fixed to the same end of the two fixing bars (9). A threaded rod (10) is threadedly connected to the two connecting plates (19), and the threads of the two threaded rods (10) are opposite. The two threaded rods (10) are connected to each other by a connecting bar (20). The two threaded rods (10) are rotatably connected to the outer shell (1). A motor (13) is installed in the assembly slot (5). The output end of the motor (13) drives one of the threaded rods (10) to rotate through the connecting structure.

3. The high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater according to claim 2, characterized in that: The connection structure includes a worm (12), which is mounted on the output end of the motor (13) and is rotatably connected to the housing (1). A worm wheel (11) is meshed with the outer side of the worm (12) and is fixed to the outer side of the threaded rod (10).

4. The high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater according to claim 1, characterized in that: A water channel (18) is provided inside the baffle plate (8) and near the top.

5. The high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater according to claim 1, characterized in that: The outer side of the blocking plate (8) is provided with a soft pad, which is made of plastic.

6. The high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater according to claim 1, characterized in that: The top of the outer casing (1) is fitted with a top cover, which is hinged to the outer casing (1).

7. The high-efficiency electrolytic oxidation device for treating high-concentration organic wastewater according to claim 1, characterized in that: At least one mounting tube (14) is installed on the inner wall of the inner shell (4) and on both sides of each of the blocking plates (8). A sliding rod (15) is slidably connected inside the mounting tube (14). A gasket (16) is fixed to one end of the sliding rod (15) near the blocking plate (8). The gasket (16) is in contact with the blocking plate (8) and the inner shell (4). A spring (17) is installed inside the mounting tube (14) and is connected to the sliding rod (15).

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