Sewage defluorination resin exchange device

Abstract

The utility model belongs to the field of wastewater treatment, and particularly relates to a sewage defluorination resin exchange device which comprises a deep defluorination resin component, the deep defluorination resin component comprises a barrel, an upper seal head and a lower seal head are respectively mounted at two ends of the barrel, a water inlet pipe is mounted on the upper seal head, a water outlet pipe is arranged at the bottom of the lower seal head, and a water outlet pipe is arranged at the bottom of the barrel. An upper water collecting plate and a lower water collecting plate are arranged in the barrel body in the liquid flowing direction, a plurality of water caps are mounted on the upper water collecting plate and the lower water collecting plate, and arc-shaped baffles are mounted on the two sides of the upper water collecting plate and the two sides of the lower water collecting plate; a secondary regeneration agent assembly is installed in the middle of the barrel, the lower portion of a main regeneration agent assembly is installed in the barrel, the lower portion of the main regeneration agent assembly is located between the water collecting plate and the lower end socket of the tank body, an arc-shaped baffle is arranged, and flow field simulation verification shows that the dead angle area of the device is reduced, and the resin defluorination and regeneration efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, specifically a wastewater defluorination resin exchange device. Background Technology

[0002] Fluorine, an essential element for the human body, is beneficial to health at low concentrations, but excessive intake can lead to fluorosis, seriously endangering health. In recent years, with the rapid development of industries such as semiconductors, electronics, and photovoltaics, the amount of fluoride-containing wastewater generated during their production processes has increased, exacerbating environmental fluoride pollution. The treatment of fluoride-containing industrial wastewater has gradually become a hot topic in the water treatment industry. In recent years, the country has strengthened environmental protection policies, requiring increasingly stringent emission standards for fluorides, necessitating improvements in wastewater treatment. Many regions have formulated upgrading and renovation plans, and Jiangsu Province is also promoting fluoride pollution control, requiring the fluoride concentration in water plant effluent to be below 1.5 mg / L. This not only relates to environmental protection but also directly affects human health.

[0003] Existing, relatively mature defluoridation processes include calcium salt precipitation, coagulation sedimentation, adsorption, and ion exchange. However, calcium salt precipitation is limited by the theoretical limit of effluent fluoride at approximately 8-10 mg / L, which cannot meet the requirements for deep defluoridation. Coagulation sedimentation is limited by the need for large dosages of some defluoridating agents, resulting in low specific gravity and poor coagulation effect. Adsorption is limited by its application scenarios; it is difficult to achieve stable compliance with standards when dealing with complex industrial wastewater with high TDS, and its adsorption capacity is limited, with a tendency to deactivate after multiple regenerations. Therefore, only ion exchange can meet the requirements for deep defluoridation, avoid the risk of excessive effluent fluoride, and requires less land area. However, current ion exchange methods are prone to problems such as large dosages of regenerants and long regeneration cycles, thus having certain limitations.

[0004] However, existing defluorination resin exchange devices have many dead zones in the wastewater flow, which affects the efficiency of resin defluorination and regeneration. Therefore, a wastewater defluorination resin exchange device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a wastewater defluorination resin exchange device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The wastewater defluorination resin exchange device of this utility model includes a deep defluorination resin component. The deep defluorination resin component includes a cylinder. An upper end cap and a lower end cap are respectively installed at both ends of the cylinder. An inlet pipe is installed on the upper end cap, and an outlet pipe is provided at the bottom of the lower end cap. An upper water collecting plate and a lower water collecting plate are arranged in the cylinder along the liquid flow direction. Multiple water caps are installed on both the upper and lower water collecting plates. Arc-shaped baffles are installed on both sides of the upper and lower water collecting plates. A secondary component of regeneration agent is installed in the middle of the cylinder. The lower part of the main component of regeneration agent is installed in the cylinder. The lower part of the main component of regeneration agent is located between the water collecting plate and the lower end cap of the tank.

[0007] Preferably, it includes an inlet pipe and an outlet pipe, which are respectively connected to an inlet pipe and an outlet pipe; the inlet pipe is provided with an inlet at its end, and the area between the inlet and the inlet pipe is provided with a forward wash water inlet, a backwash water outlet, a regeneration agent outlet, and a pressure detection port; the outlet pipe is provided with an outlet at its end, and the area between the inlet and the outlet pipe is provided with a backwash water inlet, an air wash inlet, a regeneration agent inlet, a forward wash water outlet, an vent, and a pressure detection port; a resin trap is also installed between the pressure detection port and the outlet.

[0008] Preferably, both the upper end cap and the cylinder are provided with manholes and observation mirrors, the upper end cap is provided with an exhaust port, the cylinder is provided with a resin inlet and a resin outlet, and the lower end cap is provided with a manhole.

[0009] Preferably, the main component of the regenerative agent includes a main pipeline and multiple staggered branch pipelines. The main pipeline and the branch pipelines are connected. Multiple outlets are evenly arranged on the branch pipelines, and multiple inlets are provided on the main pipeline.

[0010] Preferably, the regenerative agent sub-assembly includes a secondary pipeline, which is installed inside the cylinder.

[0011] Preferably, the upper water collecting plate and the lower water collecting plate are provided with a plurality of water cap holes evenly arranged, the spacing between the plurality of water cap holes is 120-200mm, and the water caps are installed in the water cap holes.

[0012] Preferably, the water cap holes are arranged in a plurality of concentric rings, and the water cap holes are also arranged in polygonal and rhomboid shapes.

[0013] Preferably, a first wire-wound tube connected to the water inlet pipe is installed on the inner side of the upper end cap, and multiple second wire-wound tubes are uniformly fixed to the surface of the secondary pipeline.

[0014] Preferably, the number of the deep defluorination resin components is two, arranged horizontally, and connected in parallel for water inlet.

[0015] Preferably, the number of the deep defluorination resin components is four, arranged laterally, and connected in parallel for water inlet.

[0016] The advantages of this utility model are:

[0017] 1. This utility model, by setting an arc-shaped baffle and verifying through flow field simulation, reduces the dead zone of the device and improves the efficiency of resin defluorination and regeneration;

[0018] 2. The present invention provides a secondary component and a main component for the regeneration agent, which can improve the turbulence effect of the flow field inside the tank, form a multi-channel liquid inlet method, make the regeneration agent and the defluorination resin more fully in contact, improve the problem of uneven agent mixing, improve regeneration efficiency, and thus reduce the regeneration cycle time.

[0019] 3. This utility model is equipped with an inlet pipe and a first winding tube, which can ensure the uniform distribution of water intake and full contact with the defluorination resin, thereby further optimizing the defluorination effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the water inlet pipe and water outlet pipe structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the cylindrical body of this utility model;

[0023] Figure 3 This is a schematic diagram of the secondary pipeline structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the main pipeline structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the first winding tube of this utility model;

[0026] Figure 6 This is a side view of the water inlet pipe of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the water cap hole of this utility model.

[0028] In the diagram: 1. Water inlet; 2. Forward wash water inlet; 3. Backwash water outlet; 4. Regeneration agent outlet; 5. Pressure detection port; 6. Deep defluorination resin assembly; 7. Backwash water inlet; 8. Air wash inlet; 9. Regeneration agent inlet; 10. Forward wash water outlet; 11. Drain; 13. Resin trap; 14. Water outlet; 21. Manhole; 22. Sight glass; 23. Resin inlet; 24. Resin outlet; 31. Main pipe; 32. Branch pipe; 33. Chemical outlet; 34. Chemical inlet; 41. Secondary pipe; 51. First winding tube; 52. Second winding tube; 61. Cylinder; 62. Upper end cap; 63. Lower end cap; 64. Water inlet pipe; 65. Water outlet pipe; 66. Upper water collection plate; 67. Lower water collection plate; 68. Arc-shaped baffle; 69. Water cap. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] Specific implementation examples are given below. Example

[0031] Please see Figure 2-7 As shown, a wastewater defluorination resin exchange device includes a deep defluorination resin assembly 6. The deep defluorination resin assembly 6 includes a cylindrical body 61. An upper end cap 62 and a lower end cap 63 are respectively installed at both ends of the cylindrical body 61. An inlet pipe 64 is installed on the upper end cap 62, and an outlet pipe 65 is provided at the bottom of the lower end cap 63. An upper water collecting plate 66 and a lower water collecting plate 67 are arranged inside the cylindrical body 61 along the liquid flow direction. Multiple water caps 69 are installed on both the upper water collecting plate 66 and the lower water collecting plate 67. Arc-shaped baffles 68 are installed on both sides of the upper water collecting plate 66 and the lower water collecting plate 67. A secondary regeneration agent assembly is installed in the middle of the cylindrical body 61, and the lower part of the main regeneration agent assembly is installed inside the cylindrical body 61. The lower part of the main regeneration agent assembly is located between the water collecting plate and the lower end cap 63 of the tank.

[0032] During use, the inlet pipe 64 is used for sewage to enter the interior of the cylinder 61. The space between the upper water collection plate 66 and the lower water collection plate 67 is filled with defluorinating resin. The sewage passes through the water cap 69 and enters to contact the defluorinating resin for defluorination. It is then discharged from the water cap 69 of the lower water collection plate 67 and then discharged through the outlet pipe 65 at the bottom of the sewage lower end cap 63. By setting the arc-shaped baffle 68, the flow of fluoride-containing wastewater is made more stable and efficient. After flow field simulation verification, the dead zone of the device is reduced and the resin defluorination and regeneration efficiency is improved.

[0033] Furthermore, such as Figure 1 As shown, it includes an inlet pipe and an outlet pipe, which are connected to an inlet pipe 64 and an outlet pipe 65, respectively. The inlet pipe is provided with an inlet 1 at its end. The area between the inlet pipe 1 and the inlet pipe 64 is provided with a forward wash water inlet 2, a backwash water outlet 3, a regeneration agent outlet 4, and a pressure detection port 5. The outlet pipe 65 is provided with an outlet 14 at its end. The area between the inlet pipe 64 and the outlet pipe 65 is provided with a backwash water inlet 7, an air wash inlet 8, a regeneration agent inlet 9, a forward wash water outlet 10, an vent 11, and a pressure detection port 5. A resin trap 13 is also installed between the pressure detection port 5 and the outlet 14.

[0034] Furthermore, such as Figure 2 As shown, both the upper end cap 62 and the cylinder 61 are provided with manholes 21 and observation mirrors 22. The upper end cap 62 is provided with an exhaust port, the cylinder 61 is provided with a resin inlet 23 and a resin outlet 24, and the lower end cap 63 is provided with a manhole 21. In use, the manhole 21 facilitates the entry of personnel for maintenance, and the observation mirror 22 facilitates real-time observation of the reaction status inside the tank.

[0035] Furthermore, such as Figure 2-6 As shown, the main component of the regeneration agent includes a main pipeline 31 and multiple staggered branch pipelines 32. The main pipeline 31 and the branch pipelines 32 are connected. Multiple outlets 33 are evenly arranged on the branch pipelines 32, and multiple inlets 34 are provided on the main pipeline 31. The secondary component of the regeneration agent includes a secondary pipeline 41, which is installed inside the cylinder 61. In use, the regeneration agent is added to the defluorination resin layer as described above to facilitate the regeneration of the defluorination resin layer.

[0036] Furthermore, such as Figure 7 As shown, the upper water collection plate 66 and the lower water collection plate 67 are provided with a plurality of water cap holes 71 evenly arranged, the spacing between the plurality of water cap holes 71 is 120-200mm, and the water cap 69 is installed in the water cap hole 71.

[0037] Furthermore, the 69 holes of the water cap are arranged in a multiple concentric ring pattern.

[0038] Furthermore, the distribution of the 69 holes in the water cap also includes polygonal and rhomboid arrangements.

[0039] Furthermore, a first wound tube 51 connected to the water inlet pipe 64 is installed inside the upper end cap 62, and multiple second wound tubes 52 are uniformly fixed to the surface of the secondary pipe 41. During use, the wound tube structure at the outlet of the water inlet pipe 64 ensures more uniform water distribution. The regeneration agent feed pipeline is optimized, and a regeneration agent inlet 34 is added to each defluorination resin layer, forming a multi-channel liquid inlet method. This allows for more complete contact and reaction between the regeneration agent and the defluorination resin, ensuring uniform application and thus improving the resin regeneration effect. Example

[0040] Furthermore, the number of the deep defluorination resin components 6 is two, arranged horizontally, and connected in parallel for water inlet.

[0041] The above setup can double the flow rate range of fluoride-containing wastewater that the entire defluorination reaction system can handle. Example

[0042] Furthermore, the number of the deep defluorination resin components 6 is four, arranged laterally, and connected in parallel for water inlet. This configuration increases the flow rate range of the entire defluorination reaction system capable of handling fluoride-containing wastewater by up to four times.

[0043] Working principle: During use, the inlet pipe 64 allows wastewater to enter the interior of the cylinder 61. The space between the upper collecting plate 66 and the lower collecting plate 67 is filled with defluoridating resin. The wastewater passes through the water cap 69 to contact the defluoridating resin for defluorination, and then exits from the water cap 69 of the lower collecting plate 67. Finally, it exits through the outlet pipe 65 at the bottom of the lower wastewater end cap 63. The arc-shaped baffle 68 ensures a more stable and efficient flow of the fluoride-containing wastewater. Flow field simulation verification shows that this reduces dead zones and improves resin defluorination and regeneration efficiency. Manhole 21... To facilitate staff access for maintenance, the sight glass 22 allows for real-time observation of the internal reaction status of the tank. Regeneration agents are added to the defluorination resin layer as described above, facilitating its regeneration. The water inlet pipe 64 features a wire-wound tube structure at its outlets, ensuring more uniform water distribution. The regeneration agent feed pipeline is optimized, with regeneration agent inlets 34 added to each defluorination resin layer, creating a multi-channel liquid inlet method. This allows for more complete contact and reaction between the regeneration agent and the defluorination resin, ensuring uniform application and improving resin regeneration efficiency.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wastewater defluoridation resin exchange device, comprising a deep defluoridation resin component (6), characterized in that: The deep defluorination resin assembly (6) includes a cylinder (61), with an upper end cap (62) and a lower end cap (63) installed at both ends of the cylinder (61). An inlet pipe (64) is installed on the upper end cap (62), and an outlet pipe (65) is provided at the bottom of the lower end cap (63). An upper water collecting plate (66) and a lower water collecting plate (67) are arranged inside the cylinder (61) along the liquid flow direction. Multiple water caps (69) are installed on both the upper water collecting plate (66) and the lower water collecting plate (67). Arc-shaped baffles (68) are installed on both sides of the upper water collecting plate (66) and the lower water collecting plate (67). The middle part of the cylinder (61) is equipped with a secondary component of the regeneration agent, and the lower part of the main component of the regeneration agent is installed inside the cylinder (61). The lower part of the main component of the regeneration agent is located between the water collection plate and the lower end cap (63) of the tank.

2. The wastewater defluorination resin exchange device according to claim 1, characterized in that: It includes an inlet pipe and an outlet pipe, which are connected to the inlet pipe (64) and the outlet pipe (65) respectively; The end of the water inlet pipe is provided with a water inlet (1), and the area between the water inlet (1) and the water inlet pipe (64) is provided with a forward wash water inlet (2), a backwash water outlet (3), a regeneration agent outlet (4) and a pressure detection port (5). The outlet pipe (65) is provided with an outlet (14) at its end. The area between the inlet pipe (64) and the outlet (14) on the outlet pipe is provided with a backwash water inlet (7), an air wash inlet (8), a regeneration agent inlet (9), a forward wash water outlet (10), an air vent (11), and a pressure detection port (5). A resin trap (13) is also installed between the pressure detection port (5) and the outlet (14).

3. The wastewater defluorination resin exchange device according to claim 1, characterized in that: Both the upper end cap (62) and the cylinder (61) are provided with manholes (21) and observation mirrors (22). The upper end cap (62) is provided with an exhaust port. The cylinder (61) is provided with a resin inlet (23) and a resin outlet (24). The lower end cap (63) is provided with a manhole (21).

4. The wastewater defluorination resin exchange device according to claim 1, characterized in that: The main component of the regenerative agent includes a main pipeline (31) and multiple interleaved branch pipelines (32). The main pipeline (31) and the branch pipelines (32) are connected. Multiple outlets (33) are evenly arranged on the branch pipelines (32), and multiple inlets (34) are provided on the main pipeline (31).

5. The wastewater defluorination resin exchange device according to claim 1, characterized in that: The regenerative agent sub-assembly includes a secondary pipeline (41), which is installed inside the cylinder (61).

6. The wastewater defluorination resin exchange device according to claim 1, characterized in that: The upper water collection plate (66) and the lower water collection plate (67) are provided with a plurality of water cap holes (71) evenly arranged, the spacing between the plurality of water cap holes (71) is 120-200mm, and the water cap (69) is installed in the water cap hole (71).

7. A wastewater defluorination resin exchange device according to claim 5, characterized in that: The water cap (69) holes are arranged in a concentric ring pattern.

8. A wastewater defluorination resin exchange device according to claim 5, characterized in that: The upper end cap (62) is equipped with a first wire-wound tube (51) connected to the water inlet pipe (64), and a plurality of second wire-wound tubes (52) are uniformly fixed to the surface of the secondary pipe (41).

9. A wastewater defluorination resin exchange device according to claim 1, characterized in that: The number of the deep defluorination resin components (6) is two, arranged in a horizontal manner, and connected in parallel for water inlet.

10. A wastewater defluorination resin exchange device according to claim 1, characterized in that: The number of the deep defluorination resin components (6) is 4, arranged in a horizontal manner and connected in parallel for water inlet.

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