High-salt high-COD (Chemical Oxygen Demand) wastewater treatment device

Abstract

The utility model discloses a high-salt high-COD (Chemical Oxygen Demand) wastewater treatment device, which belongs to the technical field of wastewater treatment and comprises a sedimentation tank, a water inlet pipe is fixedly mounted on one side of the sedimentation tank, a movable frame is connected in the sedimentation tank in a sliding manner, a plurality of groups of filter plates for filtering wastewater are fixedly mounted in the movable frame, and collecting tanks are mounted on two sides of each filter plate. A cleaning structure used for scraping impurities on the filter plate is installed at the top of the filter plate, shielding structures used for preventing sewage from infiltrating are installed on the two sides, close to the collecting tank, of the movable frame, and through rotation of a threaded rod, a movable block drives a pushing rod to rotate and pushes a scraping plate and a scraping piece to push the impurities on the filter plate into the collecting tank; impurities adhered to the filter plate are scraped, so that the filter plate is cleaned, the cleanliness and the filtering effect of the filter plate are ensured, the smoothness of the filter plate is ensured, blockage is avoided, the working efficiency of the device is improved, and normal use of the device is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a high-salt and high-COD wastewater treatment device. Background Art

[0002] High-salt and high-COD wastewater treatment equipment is a kind of equipment for treating wastewater with high COD and high salt content. It can effectively reduce the COD and salt content in the wastewater to meet environmental protection standards.

[0003] A Chinese patent discloses a high-salt and high-COD wastewater treatment recycling device (publication number CN214327450U), which includes a mounting base plate, a mounting plate is provided on one side of the upper surface of the mounting base plate, and a heating plate is provided on the inner side of the mounting plate, a heating evaporator is provided on the inner side of the mounting plate located on the upper part of the heating plate, and a wastewater inlet is provided on one side of the upper outer surface of the heating evaporator, and a filter screen is provided on the upper surface of the wastewater inlet, a heating chamber is provided inside the heating evaporator, and a spiral extrusion blade is provided on one side of the heating chamber, an extrusion port is provided on the lower part of one side of the heating evaporator, and a check switch is provided on the upper outer surface of the extrusion port. A high-salt and high-COD wastewater treatment recycling device designed by the utility model can filter suspended particles in the wastewater through the filter screen when in use, effectively avoiding the blockage of subsequent pipelines by particles, but the filter screen in the patent is not provided with a scraper device, which may cause the filter screen to be blocked, and the impurities on the filter screen accumulate thicker and thicker, which will also affect the filtering effect of the device, resulting in reduced filtering efficiency or filtering failure. Utility Model Content

[0004] The purpose of the utility model is to provide a high-salt and high-COD wastewater treatment device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-salt and high-COD wastewater treatment device comprises a sedimentation tank, a water inlet pipe is fixedly installed on one side of the sedimentation tank, a movable frame is slidably connected inside the sedimentation tank, a plurality of filter plates for filtering wastewater are fixedly installed inside the movable frame, a collecting trough is installed on both sides of the filter plate, a cleaning structure for scraping impurities on the filter plate is installed on the top of the filter plate, and shielding structures for preventing sewage from seeping are installed on both sides of the movable frame close to the collecting trough;

[0007] The cleaning structure includes a threaded rod, which is installed on the top of the filter plate. Both ends of the outer wall of the threaded rod are slidably sleeved with movable blocks. The threaded grooves at both ends of the threaded rod rotate in opposite directions to achieve relative movement of the two movable blocks. Both sides of each movable block are rotatably connected to a push rod, one side of the push rod is rotatably connected to a connecting piece, and one side of the connecting piece is slidably connected to a scraper.

[0008] As a further solution of the utility model, fixed plates are fixedly connected on both sides of the movable frame, a group of driving motors for providing power to the equipment are fixedly installed inside the fixed plates, the output end of the driving motor is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a bevel gear 1, one end of the threaded rod is rotatably connected to a group of fixed plates away from the driving motor through a bearing, and a bevel gear 2 is fixedly installed on the other end, and the bevel gear 2 is meshed with the bevel gear 1.

[0009] As a further solution of the utility model, the filter plate includes a coarse-pore filter, a fine-pore filter and activated carbon, and the coarse-pore filter, fine-pore filter and activated carbon are all fixedly installed inside the movable frame and distributed in sequence from top to bottom.

[0010] As a further solution of the utility model, the shielding structure includes a shielding plate, a bottom end of the shielding plate is fixedly connected to a rotating sleeve, and a positioning rod is rotatably connected to the inside of the rotating sleeve.

[0011] As a further solution of the utility model, the external fixing sleeve of the positioning rod is provided with a fixing tube, the outer wall of the fixing tube is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a spring, and the top of the spring is rotatably connected to the bottom end of the shielding plate.

[0012] As a further solution of the utility model, a wastewater pipe is fixedly connected to one side of the sedimentation tank, a water pump is fixedly connected to one side of the wastewater pipe, an electrodialysis device is fixedly connected to one side of the water pump through a pipeline, and a degradation device is fixedly connected to one side of the electrodialysis device through a pipeline.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model is used, the threaded rod is rotated to make the movable block drive the push rod to rotate, and push the scraper and the scraper to push the impurities on the filter plate into the collection tank, scrape off the impurities adhering to the filter plate, play the role of cleaning the filter plate, ensure the cleanliness and filtering effect of the filter plate, ensure the smooth flow of the filter plate, avoid blockage, improve the working efficiency of the device, and maintain the normal use of the device.

[0015] 2. When the utility model is used, the filter plate is pushed downward by the movement of the scraper, so that the wastewater flows up from the shielding plates on both sides, so that the shielding plates are flipped by force, so that a gap is generated between the movable frame and the sedimentation tank, which is convenient for the wastewater to flow up and wash the floating foam remaining in the water and adhering to the inner wall of the sedimentation tank onto the filter plate and flow into the collection tank, further enhancing the filtering effect of the device, while avoiding the adhesion of the floating foam to the device, causing unnecessary damage to the device, and extending the service life of the device. After the wastewater sinks, the shielding plate is reset by the tension of the spring, thereby enhancing the sealing of the device and preventing unfiltered wastewater from directly entering the sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-salt and high-COD wastewater treatment device.

[0017] Figure 2 This is a structural diagram of the cleaning structure in a high-salt and high-COD wastewater treatment device.

[0018] Figure 3 This is an exploded view of the shielding structure in a high-salt and high-COD wastewater treatment device.

[0019] Figure 4 This is a structural diagram of a driving motor in a high-salt and high-COD wastewater treatment device.

[0020] Figure 5 It is a cross-sectional view of a filter plate in a high-salt and high-COD wastewater treatment device.

[0021] In the figure: 1, sedimentation tank; 2, water inlet pipe; 3, movable frame; 4, filter plate; 5, collecting tank; 6, threaded rod; 7, fixed plate; 8, sliding groove; 9, driving motor; 10, rotating shaft; 11, bevel gear one; 12, bevel gear two; 13, protective cover; 14, shaft; 15, shielding plate; 16, waste water pipe; 17, water pump; 18, electrodialysis equipment; 19, degradation equipment; 20, sewage pipe; 21, valve; 401, coarse-pore filter; 402, fine-pore filter; 403, activated carbon; 601, movable block; 602, push rod; 603, connecting piece; 604, scraper; 605, scraper; 606, connecting rod; 151, rotating sleeve; 152, positioning rod; 153, fixed pipe; 154, connecting plate; 155, spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-2 , a high-salt and high-COD wastewater treatment device, comprising a sedimentation tank 1, a water inlet pipe 2 is fixedly installed on one side of the sedimentation tank 1, a movable frame 3 is slidably connected inside the sedimentation tank 1, multiple groups of filter plates 4 for filtering wastewater are fixedly installed inside the movable frame 3, and collecting troughs 5 are installed on both sides of the filter plates 4, the collecting troughs 5 are clamped inside the movable frame 3, and a handle is fixedly connected inside each group of collecting troughs 5, and multiple groups of circular holes for draining are opened on the inner wall of the collecting trough 5, a cleaning structure for scraping impurities on the filter plate 4 is installed on the top of the filter plate 4, and shielding structures for preventing sewage from seeping are installed on both sides of the movable frame 3 close to the collecting trough 5;

[0024] The cleaning structure includes a threaded rod 6, which is installed on the top of the filter plate 4. Both ends of the outer wall of the threaded rod 6 are slidably sleeved with movable blocks 601. The threaded grooves at both ends of the threaded rod 6 rotate in opposite directions to achieve relative movement of the two movable blocks 601. Both sides of each movable block 601 are rotatably connected to a push rod 602, one side of the push rod 602 is rotatably connected to a connecting piece 603, one side of the connecting piece 603 is slidably connected to a scraper 604, the bottom end of the scraper 604 is fixedly connected to a scraper blade 605, the material of the scraper blade 605 is set to silicone and is in contact with the surface of the filter plate 4, and one side of the scraper plate 604 is provided with a movable groove for providing movement of the connecting piece 603.

[0025] Example 2: Please refer to Figure 3-4 , both sides of the movable frame 3 are fixedly connected with fixed plates 7, and the two groups of fixed plates 7 are tightly fitted with the inner wall of the sedimentation tank 1 to reduce the gap. One end of the water inlet pipe 2 passes through a group of fixed plates 7, and connecting rods 606 are fixedly connected with both sides of the scraper 604. The connecting rods 606 are slidably connected with the fixed plates 7. The outer wall of the fixed plate 7 is provided with a sliding groove 8 for providing movement of the connecting rod 606. A driving motor 9 for providing power for the equipment is fixedly installed inside a group of fixed plates 7. A protective cover 13 for protecting the equipment is installed on the outer wall of the driving motor 9. The protective cover 13 is fixedly installed on the outer wall of the fixed plate 7. The output end of the driving motor 9 is fixedly connected with a rotating shaft 10, and the bottom end of the rotating shaft 10 is fixedly connected with a bevel gear 11. One end of the threaded rod 6 is rotatably connected to a group of fixed plates 7 away from the driving motor 9 through a bearing, and the other end is fixedly installed with a bevel gear 12, and the bevel gear 12 is meshed with the bevel gear 11.

[0026] See also Figure 5 The filter plate 4 includes a coarse-pore filter 401, a fine-pore filter 402 and activated carbon 403, which are all fixedly mounted inside the movable frame 3 and are sequentially distributed from top to bottom, and the bottom end of the scraper 605 is in contact with the top of the coarse-pore filter 401;

[0027] Both sides of the movable frame 3 are fixedly connected with shafts 14 for maintaining the balance of the movable frame 3. The shaft 14 is slidably connected to the inner wall of the sedimentation tank 1. A square groove for providing movement of the shaft 14 is opened on one side of the sedimentation tank 1 close to the shaft 14, and the square groove is set with a certain inclination angle.

[0028] See also Figure 3 The shielding structure includes shielding plates 15, and two groups of shielding plates 15 are provided and symmetrically and evenly distributed on both sides of the movable frame 3. The shielding plates 15 are set in a triangular shape and fit tightly with the inner wall of the sedimentation tank 1. The bottom end of the shielding plate 15 is fixedly connected with a rotating sleeve 151, and the interior of the rotating sleeve 151 is rotatably connected with a positioning rod 152, and both ends of the positioning rod 152 are fixedly connected with the movable frame 3;

[0029] The outer fixed sleeve of the positioning rod 152 is provided with a fixed tube 153, the outer wall of the fixed tube 153 is fixedly connected to a connecting plate 154, the top of the connecting plate 154 is fixedly connected to a spring 155, and the top of the spring 155 is rotatably connected to the bottom end of the shielding plate 15.

[0030] See also Figure 1 A wastewater pipe 16 is fixedly connected to one side of the sedimentation tank 1, a water pump 17 is fixedly connected to one side of the wastewater pipe 16, an electrodialysis device 18 is fixedly connected to one side of the water pump 17 through a pipeline, a degradation device 19 is fixedly connected to one side of the electrodialysis device 18 through a pipeline, a sewage pipe 20 is installed on one side of the wastewater pipe 16 and is fixedly connected to the sedimentation tank 1, and a valve 21 is fixedly installed on the outer wall of the sewage pipe 20.

[0031] The working principle of the utility model is:

[0032] First, wastewater enters the sedimentation tank 1 from the water inlet pipe 2, passes through the coarse-pore filter 401, the fine-pore filter 402 and the activated carbon 403 in turn to complete the wastewater filtration, and continues to stay at the bottom of the sedimentation tank for sedimentation, then starts the drive motor 9 to connect the rotating shaft 10 to drive the bevel gear 1 11 to rotate, and then drives the bevel gear 2 12 connected to the threaded rod 6 to rotate, so that the two groups of movable blocks 601 move toward the center along the threaded rod 6, driving the push rod 602 to rotate, and pushing the two groups of scrapers 604 and scrapers 605 through the connecting piece 603 to push the impurities on the filter plate 4 into the collecting tank 5, and at the same time, when the scraper 604 moves, it drives the connecting rod 606 to move along the sliding groove 8, and then presses the filter plate 4 downward, so that The movable frame 3 drives the shaft 14 to move downward along the square groove, so that the wastewater in the sedimentation tank 1 is under pressure and surges upward from the shielding plates 15 on both sides, so that the shielding plates 15 are forced to drive the rotating sleeve 151 to rotate around the positioning rod 152, so that a gap is generated between the movable frame 3 and the sedimentation tank 1, which is convenient for the wastewater to surge up and wash the floating foam remaining in the water and adhering to the inner wall of the sedimentation tank 1 onto the filter plate 4 and flow into the collecting tank 5. After the wastewater sinks, the shielding plate 15 is reset by the pulling force of the spring 155. The precipitated wastewater is pumped into the electrodialysis equipment 18 by the water pump 17 connected to the wastewater pipe 16 for salt extraction, and then transported to the degradation equipment 19 for COD degradation. The residual sewage in the sedimentation tank 1 is discharged from the sewage pipe 20.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-salt and high-COD wastewater treatment device, comprising a sedimentation tank (1), characterized in that: A water inlet pipe (2) is fixedly installed on one side of the sedimentation tank (1), a movable frame (3) is slidably connected inside the sedimentation tank (1), a plurality of groups of filter plates (4) for filtering wastewater are fixedly installed inside the movable frame (3), both sides of the filter plates (4) are installed with collection troughs (5), a cleaning structure for scraping impurities on the filter plates (4) is installed on the top of the filter plates (4), and shielding structures for preventing sewage from seeping are installed on both sides of the movable frame (3) close to the collection troughs (5); The cleaning structure comprises a threaded rod (6), which is mounted on the top of the filter plate (4); movable blocks (601) are slidably sleeved on both ends of the outer wall of the threaded rod (6); the thread grooves at both ends of the threaded rod (6) rotate in opposite directions to achieve relative movement of the two movable blocks (601); both sides of each movable block (601) are rotatably connected to a push rod (602); one side of the push rod (602) is rotatably connected to a connecting piece (603); and one side of the connecting piece (603) is slidably connected to a scraper (604).

2. A high-salt and high-COD wastewater treatment device according to claim 1, characterized in that: Both sides of the movable frame (3) are fixedly connected with fixed plates (7), a group of the fixed plates (7) are fixedly installed with a driving motor (9) for providing power to the device, the output end of the driving motor (9) is fixedly connected with a rotating shaft (10), the bottom end of the rotating shaft (10) is fixedly connected with a bevel gear 1 (11), one end of the threaded rod (6) is rotatably connected to a group of fixed plates (7) away from the driving motor (9) through a bearing, and the other end is fixedly installed with a bevel gear 2 (12), and the bevel gear 2 (12) is meshed with the bevel gear 1 (11).

3. A high-salt and high-COD wastewater treatment device according to claim 1, characterized in that: The filter plate (4) comprises a coarse-pore filter (401), a fine-pore filter (402) and activated carbon (403); the coarse-pore filter (401), the fine-pore filter (402) and the activated carbon (403) are all fixedly mounted inside the movable frame (3) and are sequentially distributed from top to bottom.

4. A high-salt and high-COD wastewater treatment device according to claim 1, characterized in that: The shielding structure comprises a shielding plate (15), the bottom end of the shielding plate (15) is fixedly connected to a rotating sleeve (151), and the interior of the rotating sleeve (151) is rotatably connected to a positioning rod (152).

5. A high-salt and high-COD wastewater treatment device according to claim 4, characterized in that: The outer fixing sleeve of the positioning rod (152) is provided with a fixing tube (153), the outer wall of the fixing tube (153) is fixedly connected with a connecting plate (154), the top of the connecting plate (154) is fixedly connected with a spring (155), and the top of the spring (155) is rotatably connected to the bottom end of the shielding plate (15).

6. A high-salt and high-COD wastewater treatment device according to claim 1, characterized in that: A wastewater pipe (16) is fixedly connected to one side of the sedimentation tank (1), a water pump (17) is fixedly connected to one side of the wastewater pipe (16), an electrodialysis device (18) is fixedly connected to one side of the water pump (17) via a pipeline, and a degradation device (19) is fixedly connected to one side of the electrodialysis device (18) via a pipeline.

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