Denitrification device for reverse osmosis concentrated water
The denitrification device with multiple stages and safe maintenance features addresses incomplete treatment and operator safety issues in existing systems, ensuring thorough denitrification and reducing space usage.
Patent Information
- Application Number
- CN202420841211.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-23
AI Technical Summary
Existing denitrification devices for reverse osmosis concentrated water only allow for single-stage denitrification, leading to incomplete treatment due to a single packing layer, and pose risks to operators during maintenance.
A denitrification device with a stripping tower equipped with multiple denitrification stages, including a circulation component, L-shaped air inlet pipe, and V-shaped filter screens, allowing for multiple denitrification treatments and safe maintenance through separate feed and discharge ports.
Ensures thorough denitrification by allowing multiple treatment stages and reduces operator exposure to hazardous conditions during maintenance.
Smart Images
Figure CN222225960U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wastewater treatment, and in particular relates to a denitrification device for reverse osmosis concentrated water. Background Art
[0002] A high-concentration wastewater generated during the operation of the reverse osmosis concentrate system, which contains a large amount of inorganic salts, organic compounds and microorganisms. Since the concentrate contains a large amount of organic compounds, some of which contain nitrogen, direct discharge will cause eutrophication of rivers and lakes, so the concentrate must be treated before it can be discharged to the surface or reused.
[0003] In the process of treating concentrated water, a wastewater denitrification device is needed to denitrify the concentrated water. However, when using the existing wastewater denitrification device, due to consideration of the height of the denitrification device, only one level of packing layer is installed inside the denitrification device, so that the wastewater can only be denitrified once, which will result in incomplete denitrification of the wastewater.
[0004] In view of this, in order to solve the above problems, the utility model designs a denitrification device for reverse osmosis concentrated water. Utility Model Content
[0005] Purpose of the utility model: The purpose of the utility model is to provide a denitrification device for reverse osmosis concentrated water in response to the deficiencies in the current technology.
[0006] Technical solution: To achieve the above-mentioned purpose, the utility model provides a denitrification device for reverse osmosis concentrated water, including a stripping tower, wherein a first water inlet and a first water outlet are respectively provided above and below the side wall of the stripping tower, a first filter screen and a second filter screen are fixedly connected to the inner wall of the stripping tower, a filler ball is placed between the first filter screen and the second filter screen, a circulation component is fixedly installed on the stripping tower, and the circulation component is used to perform multiple denitrification treatments on the wastewater, a blower is provided on the outside of the stripping tower, and an air inlet pipe that passes through the side wall of the stripping tower is fixedly connected to the output end of the blower.
[0007] Furthermore, the circulation component includes a second water inlet and a second water outlet respectively opened on the upper and lower side walls of the stripping tower, a pump is provided on one side of the stripping tower, the output end and the input end of the pump are respectively connected to the second water inlet and the second water outlet, a water pipe is provided on the inner top of the stripping tower, two openings are opened at the left end of the water pipe, the two openings are respectively connected to the first water inlet and the second water inlet, and a plurality of nozzles are provided on the lower surface of the water pipe.
[0008] Furthermore, the air inlet pipe is L-shaped.
[0009] Furthermore, a plurality of air distribution pipes in communication with the air inlet pipe are evenly and fixedly connected around the vertical end of the air inlet pipe, and a plurality of air outlets are evenly opened on the air distribution pipes.
[0010] Furthermore, a feed inlet and a discharge port are provided on the side wall of the stripping tower, the feed inlet is closely attached to the lower surface of the first filter screen, and the discharge port is closely attached to the upper surface of the second filter screen.
[0011] Furthermore, the second filter screen is V-shaped.
[0012] Furthermore, a liquid level meter is fixedly installed on the inner wall of the stripping tower.
[0013] Furthermore, the outer wall of the stripping tower is fixedly connected with a support plate located between the feed port and the discharge port and below the discharge port.
[0014] Beneficial effect: By installing the circulation component on the stripping tower, the device can be ensured to be at a reasonable height, so that the wastewater can be denitrified multiple times, which can improve the thoroughness of the denitrification of the wastewater. The height of the device is reduced, and the waste of space is reduced.
[0015] By setting the second filter screen into a V shape and installing a feed port and a discharge port on the stripping tower, operators can complete the installation and removal of the packing balls without entering the stripping tower, thereby avoiding damage to operators by wastewater and exhaust gas inside the stripping tower. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the front view of the utility model;
[0017] Figure 2 It is a front sectional view of the utility model.
[0018] List of reference numerals: 1. stripping tower; 2. first water inlet; 3. second water inlet; 4. first water outlet; 5. second water outlet; 6. first filter screen; 7. second filter screen; 8. packing balls; 9. blower; 10. air inlet pipe; 11. pump; 12. water pipe; 13. nozzle; 14. air distribution pipe; 15. air outlet; 16. feed inlet; 17. discharge port; 18. liquid level meter; 19. support plate. DETAILED DESCRIPTION
[0019] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.
[0020] Embodiment 1, according to Figure 1-Figure 2 Provide further explanation.
[0021] The utility model provides a denitrification device for reverse osmosis concentrated water, comprising a stripping tower 1, wherein a first water inlet 2 and a first water outlet 4 are respectively provided above and below the side wall of the stripping tower 1, a first filter screen 6 and a second filter screen 7 are fixedly connected to the inner wall of the stripping tower 1, a filler ball 8 is placed between the first filter screen 6 and the second filter screen 7, a circulation component is fixedly installed on the stripping tower 1, and the circulation component is used for performing multiple denitrification treatments on the wastewater, a blower 9 is provided outside the stripping tower 1, and an air inlet pipe 10 that penetrates the side wall of the stripping tower 1 is fixedly connected to the output end of the blower 9.
[0022] The circulation component includes a second water inlet 3 and a second water outlet 5 respectively opened on the upper and lower side walls of the stripping tower 1. A pump 11 is provided on one side of the stripping tower 1. The output end and input end of the pump 11 are respectively connected to the second water inlet 3 and the second water outlet 5. A water pipe 12 is provided on the inner top of the stripping tower 1. Two openings are opened at the left end of the water pipe 12. The two openings are respectively connected to the first water inlet 2 and the second water inlet 3. A plurality of nozzles 13 are provided on the lower surface of the water pipe 12.
[0023] The air inlet pipe 10 is L-shaped.
[0024] A plurality of air distribution pipes 14 communicating with the air inlet pipe 10 are evenly and fixedly connected around the vertical end of the air inlet pipe 10 , and a plurality of air outlets 15 are evenly opened on the air distribution pipes 14 .
[0025] A liquid level meter 18 is fixedly installed on the inner wall of the stripping tower 1 .
[0026] When it is necessary to denitrify the wastewater, the operator injects water into the stripping tower 1 through the first water inlet 2 opened on the upper side wall of the stripping tower 1, and the wastewater enters the water pipe 12 with two openings connected to the first water inlet 2 and the second water inlet 3 respectively. The water entering the water pipe 12 can be sprayed out through a plurality of nozzles 13 installed on the lower surface of the water pipe 12. The sprayed water first passes through the first filter screen 6 fixedly connected to the inner wall of the stripping tower 1 and located below the water pipe 12, and then passes through the filler balls 8 placed between the first filter screen 6 and the second filter screen 7. Then the drifting wastewater finally passes through the first filter screen 6 fixedly installed on the inner wall of the stripping tower 1 and The second filter screen 7 is located below the first filter screen 6, and finally the waste water passes through the second filter screen 7 and floats downward. At this time, the blower 9 is working, and the gas passes through the air inlet pipe 10, one end of which is connected to the output end of the blower 9 and the other end goes deep into the inside of the stripping tower 1. Then the gas enters the air distribution pipe 14 which is fixedly connected to the vertical end of the air inlet pipe 10 and connected to the air inlet pipe 10, and then is discharged from a plurality of air outlets 15 opened on the upper surface of the air distribution pipe 14. The discharged gas strips the liquid above, and the waste water after stripping falls to the bottom of the stripping tower 1, and the generated gas moves upward and is discharged from the exhaust port opened on the top of the stripping tower 1.
[0027] When the stripping tower 1 starts to work, the first water outlet 4 opened on the lower side wall of the stripping tower 1 is in a closed state. Then, as the wastewater at the bottom of the stripping tower 1 continues to increase, until the wastewater level at the bottom of the stripping tower 1 contacts the liquid level meter 18 fixedly installed on the inner wall of the stripping tower 1, the liquid level meter 18 sounds an alarm, indicating that the wastewater inside the stripping tower 1 has reached a preset value, so the first water inlet 2 is closed, and then the pump 11 installed outside the stripping tower 1 is activated, and the output end of the pump 11 is connected to the second water inlet opened on the top of the side wall of the stripping tower 1. 3 is connected, and the input end is connected with the second water outlet 5 opened at the bottom of the side wall of the stripping tower 1, so that the pump 11 can extract the waste water at the bottom of the stripping tower 1 and then enter the water pipe 12 again through the second water inlet 3, and finally perform the stripping work again. The work is repeated to ensure the thoroughness of denitrification. After the second denitrification treatment, the first water outlet 4 is opened to discharge the waste water at the bottom of the stripping tower 1, and then the first water outlet 4 is closed again, the pump 11 is turned off, and the first water inlet 2 is opened, and the above actions are repeated again to ensure the thoroughness of denitrification of the wastewater.
[0028] As a specific embodiment of the utility model, a feed inlet 16 and a discharge port 17 are provided on the side wall of the stripping tower 1 , the feed inlet 16 is close to the lower surface of the first filter screen 6 , and the discharge port 17 is close to the upper surface of the second filter screen 7 .
[0029] The second filter screen 7 is V-shaped.
[0030] Since the denitrification effect of the packing balls 8 will decrease after long-term use, they need to be replaced regularly. When the packing balls 8 need to be replaced, the operator opens the discharge port 17 opened on the side wall of the stripping tower 1 and close to the upper surface of the second filter screen 7. Since the second filter screen 7 is V-shaped, the packing balls 8 will slide down along the slope of the second filter screen 7 and be discharged from the discharge port 17. The operator only needs to collect the packing balls 8 that have slipped down.
[0031] After the failed filler balls 8 are discharged, the operator can close the discharge port 17, and then open the feed port 16 opened on the side wall of the stripping tower 1 and close to the lower surface of the first filter screen 6. The operator puts new filler balls 8 into the stripping tower 1 from the feed port 16 until the space between the first filter screen 6 and the second filter screen 7 is filled with filler balls 8, and then closes the feed port 16.
[0032] As a specific implementation of the utility model, the outer wall of the stripping tower 1 is fixedly connected with a support plate located between the feed port 16 and the discharge port 17 and below the discharge port 17 .
[0033] By fixing a support plate between the feed port 16 and the discharge port 17 and below the discharge port 17 on the outer wall of the stripping tower 1, it is convenient for operators to stand on the support plate when filling or taking out the filler balls 8, thereby providing support to the operators.
[0034] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A denitrification device for reverse osmosis concentrated water, characterized in that: The invention comprises a stripping tower, wherein a first water inlet and a first water outlet are respectively provided above and below the side wall of the stripping tower, a first filter screen and a second filter screen are fixedly connected to the inner wall of the stripping tower, a filler ball is placed between the first filter screen and the second filter screen, a circulation component is fixedly installed on the stripping tower, and the circulation component is used for performing multiple denitrification treatments on the wastewater, a blower is provided outside the stripping tower, and an air inlet pipe penetrating the side wall of the stripping tower is fixedly connected to the output end of the blower.
2. A denitrification device for reverse osmosis concentrated water according to claim 1, characterized in that: The circulation component includes a second water inlet and a second water outlet respectively opened on the upper and lower side walls of the stripping tower. A pump is provided on one side of the stripping tower. The output end and input end of the pump are respectively connected to the second water inlet and the second water outlet. A water pipe is provided on the inner top of the stripping tower. Two openings are opened at the left end of the water pipe. The two openings are respectively connected to the first water inlet and the second water inlet. A plurality of nozzles are provided on the lower surface of the water pipe.
3. A denitrification device for reverse osmosis concentrated water according to claim 1, characterized in that: The air inlet pipe is L-shaped.
4. A denitrification device for reverse osmosis concentrated water according to claim 1, characterized in that: A plurality of air distribution pipes in communication with the air inlet pipe are evenly and fixedly connected around the vertical end of the air inlet pipe, and a plurality of air outlets are evenly opened on the air distribution pipes.
5. A denitrification device for reverse osmosis concentrated water according to claim 1, characterized in that: A feed inlet and a discharge port are provided on the side wall of the stripping tower. The feed inlet is in close contact with the lower surface of the first filter screen, and the discharge port is in close contact with the upper surface of the second filter screen.
6. A denitrification device for reverse osmosis concentrated water according to claim 1, characterized in that: The second filter screen is V-shaped.
7. A denitrification device for reverse osmosis concentrated water according to claim 1, characterized in that: A liquid level meter is fixedly installed on the inner wall of the stripping tower.
8. A denitrification device for reverse osmosis concentrated water according to claim 5, characterized in that: The outer wall of the stripping tower is fixedly connected with a support plate located between the feed port and the discharge port and below the discharge port.