Reverse osmosis device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a reverse osmosis device for sewage treatment, which comprises a treatment box and a treatment frame, one side of the treatment box is connected with a water inlet pipe, the treatment box is internally connected with a pre-filtering hopper, the treatment box is internally rotatably connected with a rotating shaft, and the rotating shaft is driven by a motor fixed on one side of the treatment box. A plurality of filter discs are connected to the rotating shaft, sewage filter cloth is arranged on the filter discs, a cleaning brush is connected to the inner side wall of the treatment box, a sewage discharge structure is connected to the lower part of the treatment box, a plurality of reverse osmosis pipes are arranged on the treatment frame, and the reverse osmosis pipes are communicated with the treatment box through communicating pipes; the tail end of the reverse osmosis pipe is communicated with the communicating pipe through a circulating pipe fixed on the treatment frame, the circulating pipe is connected with a circulating pump, and the treatment frame is connected with a water outlet pipe communicated with the reverse osmosis pipe. The sewage treatment device has the advantages that sewage can be subjected to multiple treatment, the cleaning period is long, cleaning is convenient, and long-time shutdown treatment is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a reverse osmosis device for sewage treatment. Background Art

[0002] Reverse osmosis technology uses the pressure difference as the driving force. Through membrane separation operation, the reverse osmosis membrane has a small pore size, only allowing water molecules to pass through, and blocking most impurities such as ions, organic substances, bacteria, and viruses.

[0003] For example, in seawater desalination and industrial water treatment, it can remove impurities to obtain pure water. It usually includes parts such as pretreatment, membrane components, and post-treatment, and plays an important role in the field of water treatment, providing high-quality pure water.

[0004] At present, reverse osmosis technology has been applied to the field of sewage treatment. However, some challenges are faced in practical applications. The types and quantities of impurities contained in the sludge are numerous, which results in unsatisfactory filtering effects in the pretreatment stage. When performing reverse osmosis treatment, due to the poor pretreatment effect, the overall treatment effect is greatly reduced. Moreover, excessive impurities make the filtering system extremely easy to clog, and it often needs to be shut down for a long time for cleaning and maintenance before it can continue to operate normally. This frequent long-term shutdown operation seriously slows down the working efficiency of sewage treatment, increasing the time cost and labor cost. If these series of problems cannot be effectively solved, it will, to a certain extent, restrict the wider application of reverse osmosis technology in the field of sewage treatment. Summary of the Utility Model

[0005] In order to solve the above various problems, the utility model proposes a reverse osmosis device for sewage treatment that can perform multiple treatments on sewage, has a long cleaning cycle, is convenient for cleaning, and does not require long-term shutdown for treatment.

[0006] To solve the above technical problems, the technical solution proposed by the utility model is: a reverse osmosis device for sewage treatment, including a treatment tank and a treatment rack. A water inlet pipe is connected to one side of the treatment tank. A detachable pre-filter hopper is connected near the water inlet pipe inside the treatment tank. A rotating shaft is rotatably connected inside the treatment tank, and the rotating shaft is driven by a motor fixed on one side of the treatment tank. A plurality of filter disks are connected to the rotating shaft, and sewage filter cloths are arranged on the filter disks. Cleaning brushes cooperating with the sewage filter cloths are connected to the inner side wall of the treatment tank. A sewage discharge structure is connected below the treatment tank. The treatment rack is arranged on one side of the treatment tank. A plurality of detachable reverse osmosis pipes are arranged on the treatment rack. The reverse osmosis pipes are communicated with the treatment tank through a communication pipe connected between the treatment rack and the treatment tank. The end of the reverse osmosis pipe is communicated with the communication pipe through a circulation pipe fixed on the treatment rack, and a circulation pump is connected to the circulation pipe. An outlet pipe communicated with the reverse osmosis pipe is connected to the treatment rack.

[0007] Further, the side wall of the pre-filter hopper away from the water inlet pipe is inclined.

[0008] Based on the above features, the filtering area can be increased, and it is convenient for the filter residues to gather smoothly, which is beneficial to improving the pre-filtering efficiency.

[0009] Further, the filter disc includes an annular disc seat and a fixing plate. The sewage filter cloth is arranged between the annular disc seat and the fixing plate. A plurality of water filtering holes are arranged on the side wall of the annular disc seat, and a plurality of fan-shaped water passing holes are evenly arranged on the fixing plate. The centers of the mutually remote sides of the annular disc seat and the fixing plate are fixedly arranged on the rotating shaft through fixing buckles.

[0010] Based on the above features, the sewage filter cloth is clamped between the annular disc seat and the fixing plate, and the annular disc seat and the fixing plate are fixed on the rotating shaft through fixing buckles, which is convenient for disassembly, cleaning and replacement of the sewage filter cloth. The water filtering holes and the fan-shaped water passing holes facilitate the passage of sewage, which is beneficial to improving the sewage filtering speed.

[0011] Further, an arc-shaped plate for cooperating with the filter disc is connected and arranged on the inner bottom surface of the treatment tank.

[0012] Based on the above features, the space at the bottom of the filter disc can be reduced, so as to achieve a good sewage filtering effect.

[0013] Further, the sewage discharge structure includes a plurality of sewage discharge branch pipes connected and arranged on the lower wall of the treatment tank and communicated with the treatment tank, and the lower ends of the sewage discharge branch pipes are communicated with the same sewage discharge main pipe.

[0014] Based on the above features, the sewage discharge branch pipes cooperate with the sewage discharge main pipe to facilitate the direct discharge of impurities in the treatment tank.

[0015] Further, water pumps are connected and arranged on both the water inlet pipe and the communicating pipe.

[0016] Based on the above features, the flow of sewage can be promoted, which is beneficial to improving the sewage treatment efficiency.

[0017] The advantages of the present utility model compared with the prior art are as follows: The device has a detachable pre-filter hopper for initially filtering large impurities, a filter disc with a sewage filter cloth for fine filtering, and a reverse osmosis tube for deep treatment. Multiple-stage treatment can not only fully treat sewage, but also share the pressure of each treatment mechanism, avoid centralized blockage, extend the cleaning cycle, the pre-filter hopper and the reverse osmosis tube can be disassembled and cleaned, the fixing buckle design of the filter disc is convenient for replacing the sewage filter cloth, and the cleaning brush can automatically clean when the filter disc rotates with the rotating shaft. The cleaning is convenient and fast, and the cleaning of the device can be realized without long-term shutdown. Description of the Drawings

[0018] Figure 1 is the three-dimensional view of the present utility model Figure 1 ;

[0019] Figure 2 is the three-dimensional view of the present utility model Figure 2 ;

[0020] Figure 3 is the front view of the present utility model;

[0021] Figure 4 is the top view of the present utility model.

[0022] As shown in the figure: 1. treatment tank; 2. treatment rack; 3. water inlet pipe; 4. pre-filter hopper; 5. rotating shaft; 6. motor; 7. sewage filter cloth; 8. cleaning brush; 9. reverse osmosis pipe; 10. connecting pipe; 11. circulation pipe; 12. circulation pump; 13. water outlet pipe; 14. annular disc seat; 15. fixing plate; 16. fixing buckle; 17. arc plate; 18. sewage discharge branch pipe; 19. sewage discharge main pipe; 20. water pump. Specific embodiments

[0023] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Combined with the attached Figure 1 、attached Figure 4 , a reverse osmosis device for sewage treatment, comprising a treatment tank 1 and a treatment rack 2. A water inlet pipe 3 is connected and arranged on one side of the treatment tank 1. A detachable pre-filter hopper 4 is connected and arranged near the water inlet pipe 3 in the treatment tank 1. The side wall of the pre-filter hopper 4 away from the water inlet pipe 3 is inclined, which can increase the filtration area and facilitate the smooth aggregation of filter substances, conducive to improving the pre-filtration efficiency.

[0025] Combined with the attached Figure 1 、attached Figure 4 , a rotating shaft 5 is rotatably connected and arranged in the treatment tank 1. The rotating shaft 5 is driven by a motor 6 fixed on one side of the treatment tank 1. A plurality of filter discs are connected and arranged on the rotating shaft 5. A sewage filter cloth 7 is arranged on the filter discs. The filter discs include an annular disc seat 14 and a fixing plate 15. The sewage filter cloth 7 is arranged between the annular disc seat 14 and the fixing plate 15. A plurality of water filtering holes are arranged on the side wall of the annular disc seat 14. A plurality of fan-shaped water passing holes are evenly arranged on the fixing plate 15. The centers of the sides of the annular disc seat 14 and the fixing plate 15 away from each other are fixedly arranged on the rotating shaft 5 through fixing buckles 16. The sewage filter cloth 7 is clamped between the annular disc seat 14 and the fixing plate 15 and the annular disc seat 14 and the fixing plate 15 are fixed on the rotating shaft 5 through fixing buckles 16, which is convenient for disassembly, cleaning and replacement of the sewage filter cloth 7. The water filtering holes and the fan-shaped water passing holes facilitate the passage of sewage, conducive to improving the sewage filtration speed.

[0026] Combined with the attached Figure 1 、attached Figure 4, a cleaning brush 8 for cooperating with each sewage filter cloth 7 is connected to the inner side wall of the treatment tank 1, and an arc-shaped plate 17 for cooperating with the filter disc is connected to the inner bottom surface of the treatment tank 1, which can reduce the space at the bottom of the filter disc, thereby achieving a good sewage filtration effect.

[0027] Combined with the attached Figure 2 , attached Figure 3 , a sewage discharge structure is connected below the treatment tank 1. The sewage discharge structure includes a plurality of sewage discharge branch pipes 18 connected to the lower wall of the treatment tank 1 and communicating with the treatment tank 1. The lower ends of the sewage discharge branch pipes 18 are communicated with the same sewage discharge main pipe 19. The sewage discharge branch pipes 18 cooperate with the sewage discharge main pipe 19 to conveniently discharge the impurities in the treatment tank 1 directly.

[0028] Combined with the attached Figure 3 , attached Figure 4 , the treatment rack 2 is arranged on one side of the treatment tank 1. A plurality of reverse osmosis pipes 9 are arranged on the treatment rack 2. The reverse osmosis pipes 9 are communicated with the treatment tank 1 through a communication pipe 10 connected between the treatment rack 2 and the treatment tank 1. The ends of the reverse osmosis pipes 9 are communicated with the communication pipe 10 through a circulation pipe 11 fixed on the treatment rack 2. A circulation pump 12 is connected to the circulation pipe 11. An outlet pipe 13 communicated with the reverse osmosis pipes 9 is connected to the treatment rack 2. Water pumps 20 are connected to both the inlet pipe 3 and the communication pipe 10, which can promote the flow of sewage and is beneficial to improving the sewage treatment efficiency.

[0029] Specific implementation manner of the present utility model: Fix the treatment tank 1 and the treatment rack 2 at the sewage discharge place, connect the device to an external power supply, connect the inlet pipe 3 to an external sewage discharge pipe, turn on the water pump 20, the sewage first enters the pre-filtering hopper 4 for preliminary filtration, the larger impurities remain in the pre-filtering hopper 4, the sewage after preliminary impurity removal enters the treatment tank 1 and flows through each filter disc in sequence towards the communication pipe 10. The sewage enters through the fan-shaped water passing holes, and after passing through the sewage filter cloth 7, secondary filtration treatment is realized, and then it is discharged from the water filtering holes. The sewage after being treated by multiple filter discs enters the reverse osmosis pipes 9 through the communication pipe 10 for further treatment. At the same time, turn on the circulation pump 12, so that part of the sewage enters the circulation pipe 11, and then enters the reverse osmosis pipes 9 again through the communication pipe 10 for treatment. The sewage after being treated multiple times is finally discharged from the outlet pipe 13. Periodically control the device to stop working briefly, remove the pre-filtering hopper 4 for cleaning and then reinstall it. Turn on the motor 6, the motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the filter disc to rotate, and the sewage filter cloth 7 continuously rubs and contacts with the cleaning brush 8 during the rotation of the filter disc to realize cleaning. Water can be appropriately injected from above the treatment tank 1 for cleaning, which is convenient to wash the impurities on the sewage filter cloth 7 into the sewage discharge branch pipes 18. Finally, the impurities converge into the sewage discharge main pipe 19 and are discharged. At this time, the device can be turned on to continue sewage treatment.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The above describes the present utility model and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative concept of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A reverse osmosis device for sewage treatment, comprising a treatment box (1) and a treatment frame (2), characterized in that: A water inlet pipe (3) is connected to one side of the treatment box (1); a detachable pre-filter bucket (4) is connected to the treatment box (1) near the water inlet pipe (3); a rotating shaft (5) is rotatably connected to the treatment box (1); the rotating shaft (5) is driven by a motor (6) fixed to one side of the treatment box (1); a plurality of filter discs are connected to the rotating shaft (5); a sewage filter cloth (7) is provided on the filter disc; a cleaning brush (8) matching each sewage filter cloth (7) is connected to the inner wall of the treatment box (1); a drain cleaner (9) is connected to the bottom of the treatment box (1); The sewage treatment structure is characterized in that the treatment rack (2) is arranged on one side of the treatment box (1), and a plurality of reverse osmosis pipes (9) are arranged on the treatment rack (2). The reverse osmosis pipes (9) are connected to the treatment box (1) through a connecting pipe (10) connected between the treatment rack (2) and the treatment box (1), and the ends of the reverse osmosis pipes (9) are connected to the connecting pipe (10) through a circulation pipe (11) fixed on the treatment rack (2), and a circulation pump (12) is connected to the circulation pipe (11). The treatment rack (2) is connected to a water outlet pipe (13) connected to the reverse osmosis pipe (9).

2. A reverse osmosis device for sewage treatment according to claim 1, characterized in that: The side wall of the pre-filtering bucket (4) is arranged obliquely on a side away from the water inlet pipe (3).

3. A reverse osmosis device for sewage treatment according to claim 1, characterized in that: The filter disc comprises an annular disc seat (14) and a fixing plate (15); the sewage filter cloth (7) is arranged between the annular disc seat (14) and the fixing plate (15); a plurality of water filtering holes are arranged on the side wall of the annular disc seat (14); a plurality of fan-shaped water passing holes are evenly arranged on the fixing plate (15); the annular disc seat (14) and the fixing plate (15) are fixed on the rotating shaft (5) at a position away from the center of one side by a fixing buckle (16).

4. A reverse osmosis device for sewage treatment according to claim 1, characterized in that: An arc-shaped plate (17) matching the filter disc is connected to the inner bottom surface of the processing box (1).

5. A reverse osmosis device for sewage treatment according to claim 1, characterized in that: The sewage discharge structure comprises a plurality of sewage discharge branch pipes (18) connected to the lower wall of the treatment box (1) and communicated with the treatment box (1), and the lower ends of the sewage discharge branch pipes (18) are communicated with the same sewage discharge main pipe (19).

6. A reverse osmosis device for sewage treatment according to claim 1, characterized in that: The water inlet pipe (3) and the connecting pipe (10) are both connected to a water pump (20).

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