Container type integrated water quality improving equipment

Abstract

The invention relates to the technical field of water treatment equipment, and discloses container type integrated water quality improving equipment. The device comprises a container, wherein a membrane tank, an ultrafiltration water producing tank, a pure water tank and front filtering equipment are arranged in the container; the front filtering equipment comprises a rotatable drum and fixed end covers rotationally arranged at the two ends of the drum, stainless steel sand which is used for filtering water and is influenced by magnetic force is contained in the drum, and a first magnet which is in sliding connection with the drum and is used for improving the compactness of the stainless steel sand is arranged at the bottom of the drum; and a water inlet connecting pipe and a water outlet connecting pipe are respectively arranged on the two end covers. The magnet and the stainless steel sand influenced by magnetic force are matched to form a novel pre-filtering device, so that the filtering effect can be ensured, impurities in the stainless steel sand can be conveniently cleaned, the stainless steel sand can continuously keep a good filtering effect, and the service life of the stainless steel sand is prolonged. And the problem that the durability of the filtering assembly of the filtering equipment is not enough is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment equipment, and in particular to a container-type integrated water quality improvement equipment. Background Art

[0002] How to directly discharge the wastewater from glass deep processing and edge grinding will not only cause a waste of water resources, but also these wastewaters mainly come from the cooling water and flushing water of the edge grinding machine, which contain a large amount of glass grinding chips, abrasive particles, lubricants, cleaning agents and other pollutants. Direct discharge will also affect the environment. Therefore, in order to improve the utilization rate of water resources, glass processing plants are generally equipped with containerized integrated water treatment equipment to treat these wastewaters.

[0003] At present, the container-type integrated water treatment equipment for glass deep processing grinding wastewater is roughly composed of MBR membrane pool, ultrafiltration water production pool, cleaning tank and pure water tank. Among them, the membrane components in the MBR membrane pool and the ultrafiltration water purification equipment in the ultrafiltration water production pool are both fine filtration, which makes them prone to membrane pollution (blocking) risks, resulting in the need for frequent backwashing. Although backwashing can increase the service life (filtration effect) of MBR membrane and ultrafiltration membrane, it will also affect the durability of the material. In order to reduce the pollution risk of MBR membrane pool and ultrafiltration water production pool, some water treatment equipment will be equipped with a coarse filtration mechanism to remove larger impurities in the wastewater in advance, reducing the burden on the MBR membrane pool and ultrafiltration water production pool.

[0004] However, the existing pre-coarse filtration equipment has the following technical problems. If the filtration method is too rough, it cannot be applied to glass deep processing grinding wastewater (impurities are relatively small), such as grid filtration mechanism, etc., while the use of relatively delicate filtration equipment (filter cartridge, filter cloth) will also cause excessive durability wear due to frequent impurity cleaning (including but not limited to backwashing). Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a container-type integrated water quality improvement equipment.

[0006] The present invention is implemented by the following technical scheme: a container, in which a membrane pool, an ultrafiltration water production pool, a pure water tank and a pre-filtration device are arranged; The pre-filter device comprises a rotatable drum and end caps rotatably arranged at both ends of the drum and fixed thereto. Stainless steel sand for water filtration and under magnetic influence is contained in the drum. A first magnet is provided at the bottom of the drum and is slidably connected thereto and is used to improve the compactness of the stainless steel sand. A water inlet connecting pipe and a water outlet connecting pipe are respectively provided on the two end caps. The water outlet end of the water inlet connecting pipe is deeply immersed in the stainless steel sand. A plurality of scraping strips distributed in an annular shape and used to transfer stainless steel sand are arranged on the inner wall of the rotating drum, so as to transfer the stainless steel sand containing impurities. An arc-shaped casing fixedly connected to one of the end covers is arranged in the rotating drum, and a second magnet capable of swinging back and forth is arranged in the arc-shaped casing, so as to adsorb the fallen stainless steel sand and separate it from the stainless steel sand by swinging after adsorption, so that the impurity-free stainless steel sand returns to the bottom of the rotating drum. A three-way sewage pipe fixedly connected to the end cover is also arranged above the arc-shaped casing, so as to adsorb and discharge impurities in the stainless steel sand.

[0007] As a further improvement of the above scheme, two arc-shaped partitions are provided on the side where the two end covers are close to each other, and the arc-shaped partitions between the two end covers are butt-jointed. The arc-shaped partitions enable the rotating drum to smoothly drive the stainless steel sand to the top of the three-way sewage pipe when conveying the stainless steel sand through the scraper bars, and the isolation area formed can prevent the diffusion of internal impurities when the stainless steel sand is conveyed.

[0008] As a further improvement of the above solution, the top of the arc-shaped partition is set as a vertical plate structure, and a semi-isolation area is formed between the two vertical plate structures, so that the fallen stainless steel sand and impurities are concentrated in the adsorption area of ​​the three-way sewage pipe and prevent the impurities from diffusing prematurely.

[0009] As a further improvement of the above solution, the bottom end of the arc-shaped partition is set to an upward shape, so that the stainless steel sand sliding down from the arc-shaped casing can be guided to the central area of ​​the rotating drum.

[0010] As a further improvement of the above solution, the scraper bar is of Y-shaped structure, so that when the stainless steel sand is transported, the stainless steel sand is not easy to slide off the scraper bar.

[0011] As a further improvement of the above solution, a stopper and a plurality of step blocks are provided on the top of the arc-shaped casing to increase the resistance of the stainless steel sand falling on the arc-shaped casing.

[0012] As a further improvement of the above scheme, the top of the stopper is U-shaped, and a paddle cylinder adapted to the stopper and connected to the second magnet is rotatably installed on the two end covers to sweep away the stainless steel sand falling on the stopper, and also promote the separation of the stainless steel sand and impurities.

[0013] As a further improvement of the above scheme, the three-way sewage pipe consists of a main pipe and two branch pipes arranged at both ends of the main pipe. Two ball valves affected by magnetic force are rotatably installed in the main pipe of the three-way sewage pipe for controlling the flow of the two branch pipes. The ball valve is provided with a through hole. A third arc-shaped rack that swings in the opposite direction to the second magnet is provided in the arc-shaped housing. Two third magnets for controlling the ball valve are provided on the third arc-shaped rack. Fourth magnets that repel the third magnet are provided on both sides of the ball valve.

[0014] As a further improvement of the above solution, there is a weight difference on both sides of the ball valve where the fourth magnet is provided, so that the ball valve will automatically return to the open state when not interfered by the third magnet.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By combining the end cover, the drum, the stainless steel sand, the first magnet, the arc-shaped casing, the second magnet and the three-way sewage pipe and other structures, a new pre-filtering device is formed. By matching the stainless steel sand layer with the first magnet, the wastewater can be filtered. At the same time, the stainless steel sand can be transferred to the impurity removal and cleaning area by transfer, and the stainless steel sand and the impurities mixed in the stainless steel sand can be distinguished by utilizing the property of the second magnet that can absorb the stainless steel sand. The separated impurities can be discharged by combining with the three-way sewage pipe. In this way, the filtering device not only has a more delicate filtering effect, but also can conveniently clean the impurities in the stainless steel sand, so that the stainless steel sand can continuously maintain a good filtering effect, and it is durable without worrying about durability issues. At the same time, there will be no conflict between the wastewater filtering work and the cleaning work of the stainless steel sand, and it can run uninterruptedly to improve the wastewater filtering efficiency. By arranging a stopper and a plurality of step blocks on the arc-shaped casing, the resistance of the stainless steel sand adsorbed on the arc-shaped casing under the influence of the second magnet can be increased, so that when the second magnet swings left and right, the stainless steel sand adsorbed on the arc-shaped casing will not be affected by the magnetic force but move with the second magnet, so that the stainless steel sand can better get rid of the magnetic influence of the second magnet and can smoothly fall to the bottom of the rotating drum; By arranging a rotatable paddle cylinder at the top of the arc-shaped casing, and arranging the top of the block to be U-shaped and compatible with the paddle cylinder, the problem that the stainless steel sand is easily retained on the block can be solved. In addition, the paddle cylinder can better disperse the falling stainless steel sand by rotating back and forth, so that the stainless steel sand can be better separated from the impurities mixed therein. At the same time, the fluctuation of the water body caused by the rotation of the paddle cylinder can also cause the stainless steel sand to slide off the arc-shaped casing and return to the bottom of the rotating cylinder. In order to prevent the stainless steel sand that has lost the adsorption of the second magnet from being sucked into the branch pipe on that side of the three-way sewage pipe, a ball valve that can control the flow of the two branches is arranged in the main pipe of the three-way sewage pipe, and a third arc-shaped rack and a third magnet that can swing in the reverse direction with the second magnet to control the opening and closing of the ball valve are arranged, so that when the second magnet swings to the left, the third arc-shaped rack will drive the third magnet to swing to the right, and the ball valve will be closed by utilizing the repulsive characteristics between the third magnet and the two fourth magnets on the ball valve to limit the flow of the branch pipe on the right side of the three-way sewage pipe, thereby reducing the suction force of the right branch pipe, so that when the second magnet swings to the left and cannot adsorb and limit the stainless steel sand on the right, the right branch pipe will not accidentally suck in the stainless steel sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram showing the overall disassembly of the container-type integrated water quality improvement equipment of the present invention; Figure 2 This is a front view of the pre-filter device of the present invention; Figure 3 This is a rear view of the pre-filter device of the present invention; Figure 4 This is a disassembled display diagram of the pre-filter device in the present invention; Figure 5 This is a first disassembled display diagram of the end cover and the drum of the pre-filter device in the present invention; Figure 6 This is a second disassembled display diagram of the end cover and the drum of the pre-filter device in the present invention; Figure 7 It is a front view plane section display diagram and a rear view plane section display diagram of the pre-filter device in the present invention; Figure 8 This is a disassembled display diagram of the end cover and the barrel; Fig. 9 It is a partial cross-sectional view of the end cover; Fig.10 This is a disassembled display diagram of the end cover and the second magnet; Fig.11 It is a partial cross-sectional diagram of the second magnet and the three-way sewage pipe; Fig.12 This is a diagram showing the coordination between the third magnet, the three-way sewage pipe and the ball valve.

[0017] Description of main symbols: 1. Container; 2. Membrane pool; 3. Ultrafiltration water production pool; 4. Pure water tank; 5. Pre-filtration equipment; 6. Cylinder stand; 7. End cover; 8. Rotating drum; 9. Water inlet connecting pipe; 10. Water outlet connecting pipe; 11. Scraper; 12. First magnet; 13. Arc-shaped partition; 14. Arc-shaped casing; 141. Block; 142. Step block; 15. Second magnet; 151. First arc-shaped rack; 152. Second arc-shaped rack; 16. Three-way sewage pipe; 161. Ball valve; 162. Fourth magnet; 17. Dial cylinder; 18. Transmission gear; 19. Third arc-shaped rack; 20. Third magnet. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Please combine Figures 1 to 12, container-type integrated water quality improvement equipment, including: container 1, a membrane pool 2, an ultrafiltration water production pool 3, a pure water tank 4 and a pre-filtering device 5 are arranged in the container 1, a backwashing pump group is also arranged between the ultrafiltration water production pool 3 and the pure water tank 4, the membrane pool 2, the ultrafiltration water production pool 3, and the pure water tank 4 are all connected to the backwashing pump group, the pre-filtering device 5 is connected to the membrane pool 2 through a delivery pump, a delivery pump is arranged between the membrane pool 2 and the ultrafiltration water production pool 3, and a delivery pump is arranged between the ultrafiltration water production pool 3 and the pure water tank 4; The pre-filtering device 5 comprises a drum frame 6 fixedly installed in the container 1, a rotatable drum 8 and end caps 7 rotatably arranged at both ends of the drum 8 and fixed and immovable. The drum 8 is rotatably installed on the drum frame 6, and connecting pieces for limiting the end caps 7 are arranged between the two end caps 7 and the drum frame 6. The drum frame 6 is also provided with a first motor and a second motor. A first gear is fixedly installed on the conveying shaft of the first motor, and a gear ring for meshing with the gear is fixedly sleeved on the drum 8. The second motor is connected to the dial drum 17 through a synchronous wheel and a synchronous belt transmission, and a second gear is also arranged on the shaft of the dial drum 17, and a first arc-shaped rack 151 meshing with the second gear is arranged at one end of the second magnet 15 extending outside the arc-shaped casing 14, thereby realizing the transmission connection among the three; The rotary drum 8 contains stainless steel sand used for water filtration and affected by magnetic force. The bottom of the rotary drum 8 is provided with a first magnet 12 which is slidably connected thereto and is used to improve the compactness of the stainless steel sand. The first magnet 12 is fixedly mounted on the drum frame 6. The two end covers 7 are respectively provided with a water inlet connecting pipe 9 and a water outlet connecting pipe 10. The outlet end of the water inlet connecting pipe 9 penetrates into the stainless steel sand. The stainless steel sand is a martensitic stainless steel (430 stainless steel or 410 stainless steel) with strong magnetism, so that the stainless steel sand can be adsorbed by iron. The rotary drum 8 can be made of aluminum alloy or 316 stainless steel which is not easy to corrode, is not affected by magnetic force and has a weak effect of isolating magnets, so that the magnetic force of the first magnet 12 can be well absorbed by the rotary drum 8 to adsorb the stainless steel sand, so that the stainless steel sand layer is more compact and will not be pushed open by the wastewater discharged from the water inlet connecting pipe 9, thereby ensuring the filtering effect. A plurality of scraping strips 11 distributed in an annular shape and used to transfer stainless steel sand are arranged on the inner wall of the drum 8, so as to transfer the stainless steel sand containing impurities. The scraping strip 11 is a Y-shaped structure, so that when the stainless steel sand is transported, the stainless steel sand is not easy to slide off the scraping strip 11. An arc-shaped casing 14 fixedly connected to one of the end covers 7 is arranged in the drum 8, and a second magnet 15 capable of swinging back and forth is arranged in the arc-shaped casing 14. The arc-shaped casing 14 is made of aluminum alloy or 316 stainless steel, so as to adsorb the fallen stainless steel sand, and separate from the stainless steel sand by swinging after adsorption, so that the impurity-free stainless steel sand returns to the bottom of the drum 8. A three-way sewage pipe 16 fixedly connected to the end cover 7 is also arranged above the arc-shaped casing 14, and a sewage pump fixedly connected to the three-way sewage pipe 16 is also arranged in the container 1, so as to adsorb and discharge impurities in the stainless steel sand.

[0020] Through the above technical scheme, a new pre-filtering device 5 is formed, which can filter the wastewater by combining the stainless steel sand layer with the first magnet 12. At the same time, the stainless steel sand can be transferred to the impurity removal and cleaning area by transfer, and the stainless steel sand and impurities mixed in the stainless steel sand can be distinguished by utilizing the property of the second magnet 15 that can adsorb the stainless steel sand. The separated impurities can be discharged by combining with the three-way sewage pipe 16. In this way, the filtering device not only has a more delicate filtering effect, but also can conveniently clean the impurities in the stainless steel sand, so that the stainless steel sand can continue to maintain a good filtering effect, and it is durable without worrying about durability issues. At the same time, there will be no conflict between the wastewater filtering work and the stainless steel sand cleaning work, and they can run uninterruptedly to improve the wastewater filtering efficiency.

[0021] Two arc-shaped partitions 13 are provided on the sides of the two end covers 7 that are close to each other, and the arc-shaped partitions 13 between the two end covers 7 are butted. The arc-shaped partitions 13 enable the rotating drum 8 to smoothly drive the stainless steel sand to the top of the three-way sewage pipe 16 when conveying the stainless steel sand through the scraper bar 11, and the formed isolation area can prevent the internal impurities from diffusing when the stainless steel sand is conveyed. The top of the arc-shaped partition 13 is set as a vertical plate structure, and a semi-isolation area is formed between the two vertical plate structures, so that the fallen stainless steel sand and impurities are concentrated in the adsorption area of ​​the three-way sewage pipe 16 and prevent the impurities from diffusing in advance. The bottom end of the arc-shaped partition 13 is set as an upward shape, so that the stainless steel sand sliding down from the arc-shaped shell 14 can be guided to the central area of ​​the rotating drum 8.

[0022] A stopper 141 and a plurality of step blocks 142 are provided on the top of the arc-shaped casing 14 to increase the resistance of the stainless steel sand falling on the arc-shaped casing 14 , so that when the second magnet 15 swings, the arc-shaped casing 14 can better restrict the stainless steel sand and allow the stainless steel sand to fall back by moving away from the second magnet 15 .

[0023] Through the above technical solution, when the second magnet 15 swings left and right, the stainless steel sand adsorbed on the arc-shaped casing 14 will not be affected by the magnetic force but move with the second magnet 15, so that the stainless steel sand can better get rid of the magnetic influence of the second magnet 15 and can fall smoothly to the bottom of the rotating drum 8.

[0024] The top of the stopper 141 is U-shaped, and a paddle cylinder 17 adapted to the stopper 141 and transmission-connected to the second magnet 15 is rotatably mounted on the two end covers 7. The paddle cylinder 17 is a hollow structure, and is used to sweep away the stainless steel sand that falls on the stopper 141, and also promote the separation of the stainless steel sand from impurities. At the same time, the fluctuation of the water body caused by the rotation of the paddle cylinder 17 will also cause the stainless steel sand to slide off the arc-shaped casing 14 and return to the bottom of the rotating drum 8.

[0025] The three-way sewage pipe 16 is composed of a main pipe and two branch pipes arranged at both ends of the main pipe. Two ball valves 161 for controlling the flow of the two branch pipes and affected by magnetic force are rotatably installed in the main pipe of the three-way sewage pipe 16. The ball valve 161 is made of 316 stainless steel that is not affected by magnetic force. A third arc-shaped rack 19 that swings in the reverse direction of the second magnet 15 is arranged in the arc-shaped casing 14. One end of the second magnet 15 in the arc-shaped casing 14 is fixedly connected to the second arc-shaped rack 152, and a transmission gear 18 meshing with the second arc-shaped rack 152 and the third arc-shaped rack 19 is rotatably installed in the arc-shaped casing 14. The third arc-shaped rack 19 is provided with two gears for The third magnet 20 of the control ball valve 161, the fourth magnet 162 that repels the third magnet 20 is fixedly embedded on both sides of the ball valve 161, and the main pipe of the three-way sewage pipe 16 is close to the arc-shaped casing 14, so that the distance between the third magnet 20 and the ball valve 161 can be reduced, and the distance between the third magnet 20 and the fourth magnet 162 is set to be less than 3cm, so as to ensure that the third magnet 20 has no effect on the ball valve 161, and the three-way sewage pipe 16 is made of aluminum alloy that is not affected by magnetic force, and the magnetic field of the magnet will not be attenuated, and the magnets in this device are all neodymium iron boron magnets, which are permanent magnets and their strong magnetic force can meet the use requirements of this device; The upper half of the third magnet 20 is an N pole, and the lower half is an S pole. The outward side of the two fourth magnets 162 on the ball valve 161 is an N pole, and the inward side is an S pole. According to the principle that like poles repel each other and opposite poles attract each other, when the third magnet 20 is aligned with the ball valve 161, under the action of the two fourth magnets 162, the ball valve 161 will rotate, so that the through hole on the ball valve 161 will change from a parallel state to a vertical state, thereby achieving the purpose of flow blocking. There is a weight difference on both sides of the ball valve 161 where the fourth magnet 162 is provided, so that the ball valve 161 will automatically return to an open state without being interfered by the third magnet 20.

[0026] Through the above technical solution, when the second magnet 15 swings to the left, the third arc-shaped rack 19 will drive the third magnet 20 to swing to the right, and the ball valve 161 is closed by utilizing the repulsive characteristics between the third magnet 20 and the two fourth magnets 162 on the ball valve 161, so as to limit the flow of the branch pipe on the right side of the three-way sewage pipe 16, thereby reducing the suction force of the right branch pipe, so that when the second magnet 15 swings to the left and cannot adsorb and limit the stainless steel sand on the right side, the right branch pipe will not accidentally suck in the stainless steel sand.

[0027] The implementation principle of a container-type integrated water quality improvement device in the embodiment of the present application is: During filtration, the wastewater enters the pre-filtration device 5 through the water inlet connecting pipe 9 under the conveyance of the conveying pump, and then permeates through the stainless steel sand to complete the pre-filtration. During this process, the larger impurities in the wastewater are retained in the stainless steel sand layer. Subsequently, the conveying pump connected between the water outlet connecting pipe 10 and the membrane pool 2 conveys the pre-filtered wastewater to the membrane pool 2, thereby reducing the filtration burden of the membrane pool 2 and the subsequent ultrafiltration water production pool 3; When the pre-filter device 5 is cleaned of impurities, the first motor is started, and the first motor drives the drum 8 to rotate. While the drum 8 is rotating, the bottom part of the stainless steel sand layer is transported to the top of the pre-filter device 5 through a plurality of scraping strips 11 inside the drum 8; At the same time, the second motor drives the cylinder 17 to rotate, and the cylinder 17 rotates back and forth. The cylinder 17 drives the second magnet 15 to swing back and forth in the arc-shaped casing 14 through the gear and the first arc-shaped rack 151 set on the second magnet 15. At this time, the fallen stainless steel sand and the impurities mixed in the stainless steel sand will be more dispersed after the swing of the cylinder 17. Subsequently, the stainless steel sand is adsorbed on the arc-shaped casing 14 under the action of the second magnet 15, and the impurities are sucked into the three-way sewage pipe 16 together with part of the pre-filtered water and discharged. As the second magnet 15 swings, when the second magnet 15 swings to the other side, the stainless steel sand on the current side will slide down along the arc-shaped casing 14 after losing the adsorption of the second magnet 15 and finally return to the bottom of the rotating drum 8. At the same time, in order to prevent the stainless steel sand that loses the adsorption of the second magnet 15 from being sucked into the branch pipe on the side of the three-way sewage pipe 16, the second magnet 15 will drive the transmission gear 18 to rotate through the second arc-shaped rack 152 when it swings, and the transmission gear 18 drives the third arc-shaped rack 19 and the two third magnets 20 to swing in the opposite direction. At this time, the corresponding third magnet 20 is opposite to the corresponding ball valve 161 (the ball valve 161 in the opposite direction of the second magnet 15) in the main pipe of the three-way sewage pipe 16. According to the principle that like magnets repel each other and opposite magnets attract each other, According to the principle, when the third magnet 20 is aligned with the ball valve 161, under the action of the two fourth magnets 162, the ball valve 161 will rotate, so that the through hole on the ball valve 161 will change from a parallel state to a vertical state, thereby achieving the purpose of flow blocking, so that the suction force of the branch pipe on the side without the second magnet 15 is reduced, so that it will not suck in the stainless steel sand that has lost the adsorption of the second magnet 15. At the same time, the thrust generated on the water body by the rotation of the dial cylinder 17 will also cause the stainless steel sand to slide off the arc-shaped casing 14 and return to the bottom of the pre-filter device 5.

[0028] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A container-type integrated water quality improvement device, comprising a container (1), wherein a membrane pool (2), an ultrafiltration water production pool (3), a pure water tank (4) and a pre-filtration device (5) are arranged in the container (1), characterized in that: The pre-filter device (5) comprises a rotatable drum (8) and end caps (7) rotatably arranged at both ends of the drum (8) and fixed thereto. Stainless steel sand for water filtration and under the influence of magnetic force is contained in the drum (8). A first magnet (12) is provided at the bottom of the drum (8) and is slidably connected thereto and is used to increase the compactness of the stainless steel sand. A water inlet connecting pipe (9) and a water outlet connecting pipe (10) are respectively provided on the two end caps (7). The water outlet end of the water inlet connecting pipe (9) is inserted deep into the stainless steel sand. The inner wall of the rotating drum (8) is provided with a plurality of scraping strips (11) distributed in an annular shape and used for transferring stainless steel sand, thereby transferring stainless steel sand containing impurities. The rotating drum (8) is provided with an arc-shaped casing (14) fixedly connected to one of the end covers (7). The arc-shaped casing (14) is provided with a second magnet (15) capable of swinging back and forth, thereby adsorbing the fallen stainless steel sand and separating it from the stainless steel sand by swinging after adsorption, so that the stainless steel sand after impurities are returned to the bottom of the rotating drum (8). A three-way sewage pipe (16) fixedly connected to the end cover (7) is also provided above the arc-shaped casing (14) for adsorbing and discharging impurities in the stainless steel sand.

2. The container-type integrated water quality improvement equipment according to claim 1, characterized in that: Two arc-shaped partitions (13) are provided on the sides of the two end covers (7) that are close to each other, and the arc-shaped partitions (13) between the two end covers (7) are butted against each other. The arc-shaped partitions (13) enable the rotating drum (8) to smoothly drive the stainless steel sand to the top of the three-way sewage pipe (16) when conveying the stainless steel sand through the scraper (11), and the formed isolation area can prevent the diffusion of impurities inside the stainless steel sand when conveying the stainless steel sand.

3. The container-type integrated water quality improvement equipment according to claim 2, characterized in that: The top end of the arc-shaped partition plate (13) is configured as a vertical plate structure, and a semi-isolated area is formed between the two vertical plate structures, so that the fallen stainless steel sand and impurities are concentrated in the adsorption area of ​​the three-way sewage pipe (16) and the impurities are prevented from spreading prematurely.

4. The container-type integrated water quality improvement equipment according to claim 2, characterized in that: The bottom end of the arc-shaped partition plate (13) is arranged in an upwardly tilted shape, so that the stainless steel sand sliding down from the arc-shaped casing (14) can be guided to the central area of ​​the rotating drum (8).

5. The container-type integrated water quality improvement equipment according to claim 1, characterized in that: The scraper bar (11) is of a Y-shaped structure, so that when the stainless steel sand is transported, the stainless steel sand is not likely to slide off the scraper bar (11).

6. The container-type integrated water quality improvement equipment according to claim 1, characterized in that: A stopper (141) and a plurality of step blocks (142) are provided on the top of the arc-shaped casing (14) to increase resistance of the stainless steel sand falling on the arc-shaped casing (14).

7. The container-type integrated water quality improvement equipment according to claim 6, characterized in that: The top of the stopper (141) is U-shaped, and a paddle cylinder (17) adapted to the stopper (141) and transmission-connected to the second magnet (15) is rotatably mounted on the two end covers (7) for sweeping away the stainless steel sand falling on the stopper (141) and also for separating the stainless steel sand from impurities.

8. The container-type integrated water quality improvement equipment according to claim 1, characterized in that: The three-way sewage pipe (16) is composed of a main pipe and two branch pipes arranged at both ends of the main pipe. Two ball valves (161) for controlling the flow of the two branch pipes and affected by magnetic force are rotatably installed in the main pipe of the three-way sewage pipe (16). The ball valve (161) is provided with a through hole. A third arc-shaped rack (19) is provided in the arc-shaped casing (14) and is swung in the reverse direction of the second magnet (15). Two third magnets (20) for controlling the ball valve (161) are provided on the third arc-shaped rack (19). Fourth magnets (162) that repel the third magnet (20) are provided on both sides of the ball valve (161).

9. The container-type integrated water quality improvement equipment according to claim 8, characterized in that: There is a weight difference between the two sides of the ball valve (161) on which the fourth magnet (162) is provided, so that the ball valve (161) automatically returns to an open state when not interfered by the third magnet (20).

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