Wastewater reverse osmosis device

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a wastewater reverse osmosis device which comprises a protective frame, a filter tank and a filter cartridge, a support rod frame is fixedly connected to the outside of the protective frame, a layering cartridge is fixedly connected to one end, away from the filter tank, of the filter cartridge, and a screw tube is fixedly connected to the top end of the filter tank. The top end of the middle of the screw pipe is fixedly connected with a sealing cover, the middle of the sealing cover is rotationally connected with a rotating shaft, the bottom end of the sealing cover is fixedly connected with a flow separation plate, the bottom end of the flow separation plate is fixedly connected with a connecting pipe, the outer portion of the rotating shaft is fixedly connected with a turbine, and the upper side and the lower side of the layering cylinder are rotationally connected with rotating rollers. According to the invention, large-particle impurities and the like are removed by utilizing wastewater flowing and indirect scraping of the activated carbon filter screen by the scraping plate, the filter screen is kept clean, the wastewater pollution load is reduced, dry-wet separation of impurities and moisture is realized through multi-layer reverse osmosis membrane filtration, and the wastewater recovery rate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to a wastewater reverse osmosis device. Background Art

[0002] Industrial wastewater refers to the wastewater generated during industrial production processes. Such wastewater may contain various harmful substances, such as heavy metals, organic pollutants, inorganic salts, suspended solids, acid-base substances, etc. The sources of industrial wastewater are very extensive, including but not limited to industries such as chemical engineering, pharmaceuticals, metallurgy, textiles, papermaking, and food processing. Due to the complex composition of industrial wastewater and the high difficulty of treatment, if directly discharged without proper treatment, it will cause serious pollution to the environment, endanger human health and ecological balance. Therefore, appropriate purification treatment must be carried out before discharge.

[0003] In the scenario of advanced wastewater treatment, although reverse osmosis technology can efficiently purify water quality, since some existing reverse osmosis equipment directly filters raw water, if the raw water contains multiple heavy metal ions, these impurity heavy metal ions will scale or form precipitates on the surface of the reverse osmosis membrane, thereby reducing the membrane flux. Moreover, they will also be discharged with the permeated water, resulting in the quality of the effluent from the reverse osmosis system being affected and the expected purification effect not being achieved. Therefore, in view of the above problems, a wastewater reverse osmosis device is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a wastewater reverse osmosis device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides a wastewater reverse osmosis device, including a protective frame, a filter tank, and a filter cylinder. A support rod frame is fixedly connected to the outside of the protective frame. One end of the filter cylinder away from the filter tank is fixedly connected to a layered cylinder. The top of the filter tank is fixedly connected to a spiral tube. The middle top of the spiral tube is fixedly connected to a sealing cover. A rotating shaft is rotatably connected to the middle of the sealing cover. A baffle is fixedly connected to the bottom of the sealing cover. A connecting pipe is fixedly connected to the bottom of the baffle. A turbine is fixedly connected to the outside of the rotating shaft. Rotating rollers are rotatably connected to the upper and lower sides of the layered cylinder. A connecting component for assisting the operation inside the filter cylinder is provided between the rotating shaft and the rotating rollers. A scraping plate sleeve is fixedly connected to the bottom of the rotating shaft. An activated carbon filter screen is detachably connected to the middle of the inside of the filter tank; Preferably, the connecting component includes a first pulley, the middle of the first pulley is fixedly connected to the top of the rotating shaft, a second pulley is fixedly connected to the top of the rotating roller, and a belt rope is sleeved outside the second pulley and the first pulley; Preferably, a reverse osmosis membrane 1 is fixedly connected to the interior of the filter cartridge, a sewage discharge cavity is provided at the top end of the filter cartridge and the inner top end of the stratification cartridge, a sealing plate is fixedly connected to the middle of the inner part of the stratification cartridge, a reverse osmosis membrane 2 is fixedly connected to the middle of the inner part of the filter cartridge, a drainage cavity is provided at the bottom end of the filter cartridge and the inner bottom end of the stratification cartridge, a spiral blade 1 is fixedly connected to the outer top end of the rotating roller, and a spiral blade 2 is fixedly connected to the outer bottom end of the rotating roller; Preferably, the outside of the connecting pipe is fixedly connected to the middle bottom end of the spiral tube, and the spiral tube is sleeved on the outside of the turbine; Preferably, the bottom end of the support rod is fixedly connected to the outside of the protective frame, the bottom end of the filter cartridge is fixedly connected to the outside of the protective frame, and the bottom end of the scraper cover is rotatably connected to the top of the activated carbon filter screen; Preferably, the outer portion of the spiral blade 1 is rotatably connected to the inner wall of the sewage discharge chamber, the outer portion of the spiral blade 1 is slidably connected to the side of the reverse osmosis membrane 1 close to the roller, and the outer portion of the spiral blade 2 is rotatably connected to the inner wall of the drainage chamber; Preferably, the bottom end of the stratification cylinder away from the filter cylinder is fixedly connected to a drain pipe, and the top end of the stratification cylinder away from the filter cylinder is fixedly connected to a sewage pipe; Preferably, a water inlet hole is opened at the top end of the filter cartridge, a drainage pipe is fixedly connected to the bottom end of the filter tank, and the top end of the drainage pipe is fixedly connected to the inside of the water inlet hole; Preferably, a flushing pump is provided in the middle of the bottom end of the drainage tube, the top end of the flushing pump is fixedly connected to the top end of the support rod frame, and the top end of the front side of the protective frame is fixedly connected to a controller.

[0006] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, wastewater flows along the vortex-shaped pipe wall and impacts the turbine through the flow divider, causing the turbine to rotate at high speed. Simultaneously, the water flows down and is filtered through the activated carbon filter. The rotating shaft drives the scraper sleeve to rotate, cleaning the filter surface. The scraper sleeve indirectly scrapes the activated carbon filter through the flow of wastewater, removing impurities in a timely manner and keeping it clean. This allows the activated carbon filter to effectively pre-treat large particles of impurities, colloids, and organic matter in the wastewater, reducing the pollution load of the wastewater. 2. In the present invention, wastewater contacts reverse osmosis membrane 1 and reverse osmosis membrane 2 in the sewage discharge chamber, so that impurities in the wastewater are blocked on the sealing plate, while the wastewater water passes through the membrane and is stored in the drainage chamber. Combined with the transmission of the belt, the roller drives the spiral blade 1 and the spiral blade 2 to rotate relative to each other, thereby achieving multi-layer filtration of wastewater while separating the water and impurities into dry and wet parts for discharge, thereby improving the wastewater recovery rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the protective frame of the present invention; Figure 3 Schematic diagram of the structure of the first pulley, belt rope and filter cartridge of the present invention; Figure 4 Cross-sectional schematic diagram of the filter tank and the spiral tube of the present invention; Figure 5 is Figure 4 Enlarged view of part A in Figure 6 Schematic diagram of the disassembled structure of the sealing cover, turbine, connecting pipe and rotating shaft of the present invention; Figure 7 Schematic diagram of the disassembled structure of the spiral tube and its internal structure of the present invention; Figure 8 Schematic diagram of the structure of the connecting pipe, baffle plate and sealing cover of the present invention; Figure 9 Schematic diagram of the mating structure of the filter cartridge, reverse osmosis membrane I, reverse osmosis membrane II and roller of the present invention.

[0008] Legend: 1. Protective frame; 2. Support bracket; 3. Filter tank; 4. Filter cartridge; 5. Stratified cylinder; 6. Spiral tube; 7. Sealing cover; 8. Rotating shaft; 9. Baffle plate; 10. Connecting pipe; 11. Turbine; 12. First pulley; 13. Roller; 14. Second pulley; 15. Belt rope; 16. Scraper sleeve; 17. Activated carbon filter screen; 18. Reverse osmosis membrane I; 19. Sewage chamber; 20. Sealing plate; 21. Reverse osmosis membrane II; 22. Drainage chamber; 23. First spiral blade; 24. Second spiral blade; 25. Drain pipe; 26. Sewage pipe; 27. Water inlet hole; 28. Drainage pipe; 29. Flushing water pump; 30. Controller. Detailed implementation manners

[0009] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0010] Referring to Figures 1 to 3 , an embodiment provided by the present invention: A wastewater reverse osmosis device includes a protective frame 1, a filter tank 3 and a filter cartridge 4. The protective frame 1 is in the shape of a rectangular frame, and each side is tightly connected by welding or high-strength bolts to ensure the stability of the overall structure. A support bracket 2 is fixedly connected to the outside of the protective frame 1. The support bracket 2 is made of metal material and is welded by four round rods and discs.

[0011] The bottom end of the support rod frame 2 is fixedly connected to the outside of the protective frame 1, and one end of the support rod frame 2 is fixedly welded to the inner bottom end position of the protective frame 1. The filter tank 3 is designed with a cylindrical tank body, made of corrosion-resistant metal, and can be disassembled in the middle. The bottom end of the filter cylinder 4 is fixedly connected to the outside of the protective frame 1. The filter cylinder 4 is used for deep filtration of wastewater and is fixed at the inner bottom end position of the protective frame 1.

[0012] Reference Figures 5 to 8 , one end of the filter cylinder 4 far from the filter tank 3 is fixedly connected with a layered cylinder 5. The layered cylinder 5 is connected to the filter cylinder 4 and is also a cylindrical structure. The diameter of the layered cylinder 5 is smaller than that of the filter cylinder 4. The top end of the filter tank 3 is fixedly connected with a spiral pipe 6. The spiral pipe 6 is spiral-shaped and made of metal, such as a copper pipe. The water inlet of the spiral pipe 6 is used to connect to an external booster pump to introduce wastewater into the device. After the wastewater enters the spiral pipe 6, it will flow towards the middle along the spiral-shaped pipe wall of the spiral pipe 6. This special structural design can make the wastewater form a swirl during the flowing process.

[0013] The middle top end of the spiral pipe 6 is fixedly connected with a sealing cover 7. The middle of the sealing cover 7 is rotatably connected with a rotating shaft 8. The function of the sealing cover 7 is not only to prevent wastewater leakage but also to provide a rotating support point for the rotating shaft 8. The rotating shaft 8 penetrates and is fixed to the sealing cover 7. The bottom end of the sealing cover 7 is fixedly connected with a baffle plate 9. There are multiple baffle plates 9, which are circularly and obliquely fixed at the edge position of the sealing cover 7. The bottom end of the baffle plate 9 is fixedly connected with a connecting pipe 10. The outside of the connecting pipe 10 is fixedly connected to the middle bottom end of the spiral pipe 6. The connecting pipe 10 and the sealing cover 7 fix the baffle plate 9 up and down.

[0014] The outside of the rotating shaft 8 is fixedly connected with a turbine 11. The spiral pipe 6 is sleeved outside the turbine 11. The blade surface of the turbine 11 is designed with an inclined and curved surface, which can efficiently convert the kinetic energy of the water flow into its own rotational mechanical energy. When the wastewater flows along the spiral pipe 6 and is then split by the baffle plate 9 and impacts the blade surface of the turbine 11, the turbine 11 starts to rotate at a high speed driven by the water flow, and then drives the rotating shaft 8 connected to it to rotate. The upper and lower sides of the layered cylinder 5 are rotatably connected with rotating rollers 13, and the rotating rollers 13 penetrate the layered cylinder 5.

[0015] Reference Figure 3 、 Figure 4 , the rotating shaft 8 and the rotating roller 13 are provided with a connecting component for assisting the operation inside the filter cylinder 4. The connecting component includes a first pulley 12. The middle of the first pulley 12 is fixedly connected to the top end of the rotating shaft 8. The top end of the rotating roller 13 is fixedly connected with a second pulley 14. A belt rope 15 is sleeved outside the second pulley 14 and the first pulley 12. The second pulley 14 is connected to the first pulley 12 through the belt rope 15. When the first pulley 12 rotates, the second pulley 14 is driven to rotate through the transmission of the belt rope 15, and then the rotating roller 13 is driven to rotate.

[0016] The bottom end of the rotating shaft 8 is fixedly connected with a scraper sleeve 16. An activated carbon filter screen 17 is detachably connected to the middle inside of the filter tank 3. The bottom end of the scraper sleeve 16 is rotatably connected to the top end of the activated carbon filter screen 17. When the rotating shaft 8 drives the scraper sleeve 16 to rotate, the scraper can scrape the surface of the activated carbon filter screen 17, reduce the accumulation of impurities on the surface of the activated carbon filter screen 17, and improve the filtering effect of the activated carbon filter screen 17. The activated carbon filter screen 17 is installed at the middle position inside the filter tank 3 and is detachably connected for easy cleaning and replacement.

[0017] Reference Figure 2 、 Figure 9 Inside the filter cylinder 4, a first reverse osmosis membrane 18 is fixedly connected. There are two first reverse osmosis membranes 18 and they are made of high-performance semi-permeable membrane materials. They are installed inside the filter cylinder 4. The function of the first reverse osmosis membrane 18 is to block impurities, ions, microorganisms, etc. in the wastewater and only allow water molecules to pass through, realizing the deep purification of the wastewater. A sewage discharge cavity 19 is arranged at the top inside of the filter cylinder 4 and the layered cylinder 5. The inner wall of the sewage discharge cavity 19 is smooth. A sealing plate 20 is fixedly connected to the middle inside of the layered cylinder 5. The sealing plate 20 is fixed at the middle position inside the layered cylinder 5 and is used to separate the sewage discharge cavity 19 and the drainage cavity 22.

[0018] A second reverse osmosis membrane 21 is fixedly connected to the middle inside of the filter cylinder 4. The second reverse osmosis membrane 21 is similar to the first reverse osmosis membrane 18 and is also installed at the middle position inside the filter cylinder 4. Its outside is hermetically and fixedly connected to the sealing plate 20. A drainage cavity 22 is arranged at the bottom inside of the filter cylinder 4 and the layered cylinder 5. The drainage cavity 22 is used to collect the water filtered by the reverse osmosis membrane. A first spiral blade 23 is fixedly connected to the top outside of the rotating roller 13. The outside of the first spiral blade 23 is rotatably connected to the inner wall of the sewage discharge cavity 19. The outside of the first spiral blade 23 is slidably connected to one side of the first reverse osmosis membrane 18 close to the rotating roller 13. The spiral direction of the first spiral blade 23 is designed to convey impurities upward. There are baffles at the edge of the blade of the first spiral blade 23, which are not shown in the figure. When the rotating roller 13 rotates, the first spiral blade 23 pushes the impurities at the position of the sealing plate 20 to move upward along the inner wall of the sewage discharge cavity 19.

[0019] The outer bottom end of the rotating roller 13 is fixedly connected with a second spiral blade 24. The outer part of the second spiral blade 24 is rotatably connected to the inner wall of the drainage cavity 22. The rotation direction of the second spiral blade 24 is opposite to that of the first spiral blade 23, and it is used to downward the water in the drainage cavity 22. A drain pipe 25 is fixedly connected to the bottom end of one side of the layered cylinder 5 away from the filter cylinder 4. The drain pipe 25 is made of corrosion-resistant PVC pipe. The diameter of the drain pipe 25 is selected according to the water output of the device to ensure that the treated water can be smoothly discharged from the device. A sewage discharge pipe 26 is fixedly connected to the top end of one side of the layered cylinder 5 away from the filter cylinder 4. The material of the sewage discharge pipe 26 is the same as that of the drain pipe 25. The diameter and length of the sewage discharge pipe 26 are designed according to the discharge amount and discharge requirements of impurities to discharge the impurities conveyed by the first spiral blade 23 from the device.

[0020] Reference Figure 3 , a water inlet hole 27 is opened at the top end of the filter cylinder 4. A drainage pipe 28 is fixedly connected to the bottom end of the filter tank 3. The top end of the drainage pipe 28 is fixedly connected to the inside of the water inlet hole 27. The water inlet hole 27 is opened at the top end of the filter cylinder 4 and is used to connect the drainage pipe 28, so that the wastewater preliminarily filtered by the filter tank 3 can smoothly enter the filter cylinder 4 for subsequent treatment. A flushing water pump 29 is arranged in the middle of the bottom end of the drainage pipe 28. The top end of the flushing water pump 29 is fixedly connected to the top end of the support rod frame 2. A controller 30 is fixedly connected to the top end of the front side of the protective frame 1. Under the control of the controller 30, the flushing water pump 29 is started to pump the wastewater filtered in the inner cavity of the filter tank 3 and convey it to the inside of the filter cylinder 4 and the layered cylinder 5 through the drainage pipe 28. The controller 30 is electrically connected to each component, the booster water pump and the flushing water pump 29, to realize the automatic control of the operation process of the whole device.

[0021] Working principle: Before treating the wastewater, first, the water inlet of the spiral tube 6 is externally connected to a booster water pump. The controller 30 controls the booster water pump to convey the wastewater into the spiral tube 6. After the wastewater enters the spiral tube 6, it will flow towards the middle along the spiral tube wall of the spiral tube 6. Then, it is shunted by the partition plate 9 and impacts the blade surface of the turbine 11, causing the turbine 11 to rotate at a high speed under the impact of the water flow. At the same time, the water flow entering the position of the turbine 11 continues to flow downward and is filtered by the activated carbon filter screen 17. In order to reduce the accumulation of impurities on the surface of the activated carbon filter screen 17, the rotating rotating shaft 8 will drive the scraper sleeve 16 to rotate, scraping the surface of the activated carbon filter screen 17 to improve its filtering effect.

[0022] The wastewater filtered in the filtration tank 3 will be stored at the bottom end of the inner cavity. When needed, the controller 30 controls the start of the flushing water pump 29 to extract the filtered wastewater in the inner cavity of the filtration tank 3 and convey it to the inside of the filter cylinder 4 and the layered cylinder 5 through the drainage pipe 28. The inflowing wastewater enters the sewage discharge cavity 19 and contacts the first reverse osmosis membrane 18 and the second reverse osmosis membrane 21. The impurities in the wastewater are blocked by these three membranes, while the water passes through the membranes and is stored in the drainage cavity 22. At this time, due to the action of the two oppositely installed first spiral blades 23 and second spiral blades 24 fixed to the outside of the rotating roller 13, and the connection and transmission of the rotating shaft 8, the first pulley 12, the belt rope 15 and the second pulley 14, the rotating roller 13 rotates. In this way, the first spiral blade 23 drives the impurities at the position of the sealing plate 20 to move upward and then discharge through the sewage discharge pipe 26; while the second spiral blade 24 drives the water in the drainage cavity 22 to discharge from the drainage pipe 25.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reverse osmosis device for wastewater, comprising a protective frame (1), a filter tank (3) and a filter cartridge (4), characterized in that: The outer part of the protective frame (1) is fixedly connected with a support rod frame (2). One end of the filter cartridge (4) far away from the filter tank (3) is fixedly connected with a layered cylinder (5). The top of the filter tank (3) is fixedly connected with a screw pipe (6). The middle top of the screw pipe (6) is fixedly connected with a sealing cover (7). The middle of the sealing cover (7) is rotatably connected with a rotating shaft (8). The bottom of the sealing cover (7) is fixedly connected with a flow baffle (9). The bottom of the flow baffle (9) is fixedly connected with a connecting pipe (10). The outer part of the rotating shaft (8) is fixedly connected with a turbine (11). The upper and lower sides of the layered cylinder (5) are rotatably connected with roller (13). The rotating shaft (8) and the roller (13) are provided with a connecting component for assisting the operation inside the filter cartridge (4). The bottom of the rotating shaft (8) is fixedly connected with a scraper sleeve (16). The middle part of the inside of the filter tank (3) is detachably connected with an activated carbon filter screen (17).

2. The reverse osmosis device for wastewater according to claim 1, wherein: The connecting component includes a first pulley (12). The middle part of the first pulley (12) is fixedly connected to the top of the rotating shaft (8). The top of the roller (13) is fixedly connected with a second pulley (14). A belt rope (15) is sleeved outside the second pulley (14) and the first pulley (12).

3. A wastewater reverse osmosis device according to claim 1, characterized in that: An anti - reverse osmosis membrane one (18) is fixedly connected inside the filter cartridge (4). A sewage discharge cavity (19) is arranged at the top inside the filter cartridge (4) and the layered cylinder (5). A sealing plate (20) is fixedly connected in the middle of the inside of the layered cylinder (5). An anti - reverse osmosis membrane two (21) is fixedly connected in the middle of the inside of the filter cartridge (4). A drainage cavity (22) is arranged at the bottom inside the filter cartridge (4) and the layered cylinder (5). The outer top of the roller (13) is fixedly connected with a first spiral blade (23). The outer bottom of the roller (13) is fixedly connected with a second spiral blade (24).

4. A wastewater reverse osmosis device according to claim 1, characterized in that: The outer part of the connecting pipe (10) is fixedly connected to the middle bottom of the screw pipe (6). The screw pipe (6) is sleeved outside the turbine (11).

5. The wastewater reverse osmosis device according to claim 1, characterized in that: The bottom of the support rod frame (2) is fixedly connected to the outside of the protective frame (1). The bottom of the filter cartridge (4) is fixedly connected to the outside of the protective frame (1). The bottom of the scraper sleeve (16) is rotatably connected to the top of the activated carbon filter screen (17).

6. The reverse osmosis device for wastewater according to claim 3, wherein: The outer part of the first spiral blade (23) is rotatably connected to the inner wall of the sewage discharge cavity (19). The outer part of the first spiral blade (23) is slidably connected to the side of the anti - reverse osmosis membrane one (18) close to the roller (13). The outer part of the second spiral blade (24) is rotatably connected to the inner wall of the drainage cavity (22).

7. The reverse osmosis device for wastewater according to claim 1, wherein: One side bottom of the layered cylinder (5) far away from the filter cartridge (4) is fixedly connected with a drain pipe (25). One side top of the layered cylinder (5) far away from the filter cartridge (4) is fixedly connected with a sewage discharge pipe (26).

8. The reverse osmosis device for wastewater according to claim 3, wherein: The top end of the filter cartridge (4) is provided with a water inlet hole (27), and the bottom end of the filter tank (3) is fixedly connected with a drainage pipe (28), and the top end of the drainage pipe (28) is fixedly connected to the inside of the water inlet hole (27).

9. The wastewater reverse osmosis device according to claim 8, characterized in that: The middle part of the bottom end of the drainage pipe (28) is provided with a flushing water pump (29), the top end of the flushing water pump (29) is fixedly connected to the top end of the support rod frame (2), and the front top end of the protective frame (1) is fixedly connected with a controller (30).

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