Wastewater treatment device for reducing hardness of water

Abstract

The utility model discloses a wastewater treatment device for reducing water hardness, which comprises a treatment tank, a sealing cover is arranged at the top end of the treatment tank, a connecting pipe is arranged on the bottom surface of the sealing cover, a fourth flange plate is arranged on the connecting pipe, the fourth flange plate is connected with an ion exchange resin filter, and the ion exchange resin filter is connected with an ion exchange tube. A gap is formed between the ion exchange resin filter and the inner wall of the treatment tank, a reverse osmosis filter is arranged in the ion exchange resin filter, the bottom of the connecting pipe is inserted into the inner side of an opening in the top of the ion exchange resin filter, and the bottom end of the connecting pipe is pressed on the top of the reverse osmosis filter. An ion exchange resin filter and a reverse osmosis filter are arranged in the treatment tank, the reverse osmosis filter is inserted into the ion exchange resin filter, and most of calcium and magnesium ions in wastewater are absorbed after the wastewater passes through the ion exchange resin filter and the reverse osmosis filter; and residual calcium and magnesium ions in the wastewater can be further filtered after passing through the reverse osmosis filter.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment equipment, in particular to a wastewater treatment device for reducing water hardness. Background Art

[0002] Water hardness is primarily determined by the content of calcium and magnesium ions. In many industrial processes and in some natural water bodies, water hardness is often high. Highly hard water can cause numerous problems during use. Therefore, wastewater treatment often requires treatment to reduce water hardness. Traditional methods for reducing water hardness include chemical precipitation, ion exchange, and reverse osmosis filtration.

[0003] In the prior art, the utility model patent with patent number CN201920866159.X discloses a device for reducing the hardness of wastewater, including a precipitation reaction tank, a carbon dioxide storage tank, a cleaning acid tank, and a wastewater connection port. The carbon dioxide storage tank passes carbon dioxide gas through a gas pipeline into the precipitation reaction tank through a gasification device, and wastewater is passed from the wastewater connection port through a wastewater pipeline to the precipitation reaction tank. The pickling liquid in the cleaning acid tank is passed into the precipitation reaction tank through an acid pipeline. There are multiple carbon dioxide storage tanks and multiple precipitation reaction tanks. A wastewater outlet is provided at the bottom of the precipitation reaction tank, and the wastewater outlet is connected to the wastewater reaction tank and the cleaning acid tank respectively. This device for reducing the hardness of wastewater can reduce the hardness of wastewater with high hardness without producing a large amount of sludge, and has the advantages of environmental protection and low treatment cost.

[0004] The device for reducing wastewater hardness provided by the above patent reduces water hardness by using a precipitation reaction tank for reaction. This method of reducing water hardness requires the installation of multiple precipitation reaction tanks, which will take up a lot of space. In addition, this method is mainly used to reduce the hardness of wastewater before it is completely treated. In fact, the wastewater is often treated to reduce hardness in the final step of wastewater treatment. However, the above device for reducing wastewater hardness is not convenient for reducing the hardness of wastewater in the final step of wastewater treatment, which is not conducive to efficient hardness reduction of wastewater. Utility Model Content

[0005] The purpose of the present utility model is to provide a wastewater treatment device for reducing water hardness, aiming to improve the problem that the existing device for reducing wastewater hardness is not convenient for reducing the hardness of wastewater in the final step of wastewater treatment, which is not conducive to efficiently reducing the hardness of wastewater.

[0006] The utility model is achieved in this way:

[0007] A wastewater treatment device for reducing water hardness includes a treatment tank, a sealing cover is provided at the top of the treatment tank, and a connecting pipe is provided on the bottom of the sealing cover, a fourth flange is provided on the connecting pipe, an ion exchange resin filter is connected to the fourth flange, a gap is provided between the ion exchange resin filter and the inner wall of the treatment tank, a reverse osmosis filter is provided inside the ion exchange resin filter, the bottom of the connecting pipe is inserted into the inner side of the top opening of the ion exchange resin filter, and the bottom end of the connecting pipe is pressed against the top of the reverse osmosis filter.

[0008] Preferably, a connecting plate is provided at the top of the processing tank, and a plurality of connecting holes are evenly provided at the edge of the connecting plate; and a plurality of support rods are evenly provided at the bottom edge of the processing tank, and a bottom ring is provided at the bottom end of the support rod, and a plurality of bolt holes are evenly provided on the bottom ring.

[0009] Preferably, a sewage pipe is provided at the bottom of the side of the treatment tank, and a first flange is provided at the end of the sewage pipe; a water inlet pipe is provided at the bottom of the treatment tank, and a second flange is provided at the end of the water inlet pipe.

[0010] Preferably, a mounting ring is provided at the bottom end of the side of the cover, a plurality of mounting holes are evenly provided at the edge of the mounting ring, a through hole is provided at the top of the cover, a drain pipe is provided in the middle of the top end of the cover, and a third flange is provided at the top end of the drain pipe.

[0011] Preferably, a sewage suction pipe is provided on one side of the top of the ion exchange resin filter, and a limit platform is provided inside the top opening of the ion exchange resin filter, a sealing groove is provided on the upper surface of the limit platform, and a fifth flange is provided at the top opening of the filter.

[0012] Preferably, a pressure ring is provided at the top of the reverse osmosis filter, and the bottom surface of the pressure ring is aligned with the sealing gasket at the position of the sealing groove.

[0013] Preferably, it also includes an ultraviolet sterilization lamp, and threaded holes are symmetrically provided on both sides of the top of the cover, and the ultraviolet sterilization lamp is installed in the threaded holes. A threaded connector is provided on the top of the ultraviolet sterilization lamp, and the threaded connector is threadedly connected to the threaded hole. A clamping joint is provided on the top of the ultraviolet sterilization lamp, and the clamping joint is pressed against the upper surface of the cover. A wire is provided on the top of the ultraviolet sterilization lamp, and an electrical plug is provided at the end of the wire, and the electrical plug is used to power the ultraviolet sterilization lamp.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. An ion exchange resin filter and a reverse osmosis filter are provided inside the treatment tank of the utility model. The reverse osmosis filter is inserted inside the ion exchange resin filter. After the wastewater passes through the ion exchange resin, a large part of the calcium and magnesium ions inside the wastewater are absorbed, and the residual calcium and magnesium ions inside the wastewater are further filtered after passing through the reverse osmosis filter, thereby greatly reducing the water hardness, ensuring that it can effectively reduce the water hardness.

[0016] 2. The top of the cover of the utility model is provided with ultraviolet germicidal lamps symmetrically on both sides, and the bottom of the ultraviolet germicidal lamp is inserted into the interior of the processing tank, thereby achieving the purpose of sterilizing the interior of the processing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0018] Figure 2 It is a structural diagram of the treatment tank of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the cover of the utility model from an oblique downward perspective at the front end;

[0020] Figure 4 This is a schematic structural diagram of the cover of the utility model at an oblique upward viewing angle from the rear end;

[0021] Figure 5 This is a schematic structural diagram of the utility model ion exchange resin filter;

[0022] Figure 6 It is a schematic structural diagram of the reverse osmosis filter of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the ultraviolet germicidal lamp of the utility model.

[0024] In the figure: 1. Treatment tank; 11. Connecting plate; 12. Connecting hole; 13. Support rod; 14. Bottom ring; 15. Bolt hole; 16. Drain pipe; 17. First flange; 18. Water inlet pipe; 19. Second flange; 2. Cover; 21. Mounting ring; 22. Mounting hole; 23. Through hole; 24. Threaded hole; 25. Drain pipe; 26. Third flange; 27. Connecting pipe; 28. Fourth flange; 3. Ion exchange resin filter; 31. Suction pipe; 32. Limiting platform; 33. Sealing groove; 34. Fifth flange; 4. Reverse osmosis filter; 41. Pressing ring; 5. Ultraviolet germicidal lamp; 51. Threaded connector; 52. Compression joint; 53. Wire; 54. Power plug. DETAILED DESCRIPTION

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0027] Example 1

[0028] like Figure 1 and Figure 4 As shown, a wastewater treatment device for reducing water hardness includes a treatment tank 1, with a cover 2 provided at the top of the treatment tank 1. The cover 2 is used to seal the top opening of the treatment tank 1, thereby ensuring the stability of the treatment space. A connecting pipe 27 is provided on the bottom surface of the cover 2, and a fourth flange 28 is provided on the connecting pipe 27. The fourth flange 28 is connected to an ion exchange resin filter 3. A gap is provided between the ion exchange resin filter 3 and the inner wall of the treatment tank 1. A reverse osmosis filter 4 is provided inside the ion exchange resin filter 3. The bottom of the connecting pipe 27 is inserted into the inner side of the top opening of the ion exchange resin filter 3, and the bottom end of the connecting pipe 27 is pressed against the top of the reverse osmosis filter 4. The connecting tank is used to install the ion exchange resin filter 3 and also facilitates the pressing of the reverse osmosis filter 4 to ensure sufficient stability of the reverse osmosis filter 4. The combination of the reverse osmosis filter 4 and the ion exchange resin filter 3 facilitates dual filtration of the wastewater, thereby effectively reducing the water hardness and facilitating better wastewater treatment.

[0029] like Figure 2 As shown, a connection plate 11 is provided at the top of the treatment tank 1, and a plurality of connection holes 12 are evenly arranged on the edge of the connection plate 11; the cooperation between the connection plate 11 and the connection holes 12 facilitates the connection between the treatment tank 1 and the cover 2. A plurality of support rods 13 are evenly arranged on the edge of the bottom end of the treatment tank 1, and the support rods 13 facilitate the support of the treatment tank 1. A bottom ring 14 is provided at the bottom end of the support rod 13, and a plurality of bolt holes 15 are evenly arranged on the bottom ring 14. The cooperation between the bottom ring 14 and the bolt holes 15 facilitates the fixing of the position of the treatment tank 1. A drain pipe 16 is provided at the bottom of the side of the treatment tank 1, and a first flange 17 is provided at the end of the drain pipe 16; the cooperation between the drain pipe 16 and the first flange 17 facilitates the discharge of filtered wastewater. A water inlet pipe 18 is provided at the bottom end of the treatment tank 1, and a second flange 19 is provided at the end of the water inlet pipe 18. The water inlet pipe 18 is used to inject water that needs to be treated to reduce hardness into the treatment tank 1.

[0030] like Figure 3 and Figure 4 As shown, the bottom side of the cover 2 is provided with a mounting ring 21, and multiple mounting holes 22 are evenly distributed along its edge. The combination of mounting ring 21 and mounting holes 22 facilitates connection of the cover 2 to the treatment tank 1, facilitating installation and securement of the cover 2. A perforation 23 is provided at the top of the cover 2 to facilitate the passage of the top end of the ion exchange resin filter 3 through the cover 2. A drain pipe 25 is provided in the middle of the top end of the cover 2, and a third flange 26 is located at the top of the drain pipe 25. These drain pipes 25 and third flange 26 facilitate the removal of water after hardness reduction from the entire device.

[0031] like Figure 5 As shown, a suction pipe 31 is provided on one side of the top of the ion exchange resin filter 3. The suction pipe 31 is conveniently passed through the perforation 23 to facilitate the suction of wastewater between the ion exchange resin filter 3 and the reverse osmosis filter 4 by an external suction pump. A limit platform 32 is provided on the inner side of the top opening of the ion exchange resin filter 3 to facilitate mutual limitation with the reverse osmosis filter 4. A sealing groove 33 is provided on the upper surface of the limit platform 32 to facilitate the sealing between the limit platform 32 and the reverse osmosis filter 4. A fifth flange 34 is provided at the top opening of the filter to facilitate the connection between the ion exchange resin filter 3 and the fourth flange 28.

[0032] like Figure 6 As shown, a pressure ring 41 is provided at the top of the reverse osmosis filter 4, and the bottom surface of the pressure ring 41 is aligned with the sealing groove 33 to seal the gasket. This structure facilitates the sealing process between the reverse osmosis filter 4 and the ion exchange resin.

[0033] Working Principle: During use, connect the water inlet pipe 18 to the water supply line, and the drain pipe 25 to the drain pipe 25. At the same time, both the sewage pipe 16 and the sewage suction pipe 31 are connected to the sewage suction pump. Wastewater to be reduced in hardness enters the treatment tank 1 through the water inlet pipe 18. The wastewater is filtered and treated by the ion exchange resin filter 3 and the reverse osmosis filter 4. The hardness of the filtered water is greatly reduced, and the water with reduced hardness is discharged from the sewage suction pump 25. The sewage suction pump should work regularly to suck out the water containing large amounts of calcium and magnesium ions between the ion exchange resin filter 3 and the reverse osmosis filter 4, and between the ion exchange resin and the inner wall of the treatment tank 1, thereby achieving the purpose of cleaning. Compared with the prior art, the present application provides an ion exchange resin filter 3 and a reverse osmosis filter 4 inside the treatment tank 1, and the reverse osmosis filter 4 is inserted inside the ion exchange resin filter 3. After the wastewater passes through the ion exchange resin, a large part of the calcium and magnesium ions inside the wastewater are absorbed, and the residual calcium and magnesium ions inside the wastewater are further filtered after passing through the reverse osmosis filter 4, thereby greatly reducing the water hardness, ensuring that it can effectively reduce the water hardness.

[0034] Example 2

[0035] like Figure 1 and Figure 4 As shown, a wastewater treatment device for reducing water hardness includes a treatment tank 1, with a cover 2 provided at the top of the treatment tank 1. The cover 2 is used to seal the top opening of the treatment tank 1, thereby ensuring the stability of the treatment space. A connecting pipe 27 is provided on the bottom surface of the cover 2, and a fourth flange 28 is provided on the connecting pipe 27. The fourth flange 28 is connected to an ion exchange resin filter 3. A gap is provided between the ion exchange resin filter 3 and the inner wall of the treatment tank 1. A reverse osmosis filter 4 is provided inside the ion exchange resin filter 3. The bottom of the connecting pipe 27 is inserted into the inner side of the top opening of the ion exchange resin filter 3, and the bottom end of the connecting pipe 27 is pressed against the top of the reverse osmosis filter 4. The connecting tank is used to install the ion exchange resin filter 3 and also facilitates the pressing of the reverse osmosis filter 4 to ensure sufficient stability of the reverse osmosis filter 4. The combination of the reverse osmosis filter 4 and the ion exchange resin filter 3 facilitates dual filtration of the wastewater, thereby effectively reducing the water hardness and facilitating better wastewater treatment.

[0036] like Figure 2 As shown, a connection plate 11 is provided at the top of the treatment tank 1, and a plurality of connection holes 12 are evenly arranged on the edge of the connection plate 11; the cooperation between the connection plate 11 and the connection holes 12 facilitates the connection between the treatment tank 1 and the cover 2. A plurality of support rods 13 are evenly arranged on the edge of the bottom end of the treatment tank 1, and the support rods 13 facilitate the support of the treatment tank 1. A bottom ring 14 is provided at the bottom end of the support rod 13, and a plurality of bolt holes 15 are evenly arranged on the bottom ring 14. The cooperation between the bottom ring 14 and the bolt holes 15 facilitates the fixing of the position of the treatment tank 1. A drain pipe 16 is provided at the bottom of the side of the treatment tank 1, and a first flange 17 is provided at the end of the drain pipe 16; the cooperation between the drain pipe 16 and the first flange 17 facilitates the discharge of filtered wastewater. A water inlet pipe 18 is provided at the bottom end of the treatment tank 1, and a second flange 19 is provided at the end of the water inlet pipe 18. The water inlet pipe 18 is used to inject water that needs to be treated to reduce hardness into the treatment tank 1.

[0037] like Figure 3 and Figure 4 As shown, the bottom side of the cover 2 is provided with a mounting ring 21, and multiple mounting holes 22 are evenly distributed along its edge. The combination of mounting ring 21 and mounting holes 22 facilitates connection of the cover 2 to the treatment tank 1, facilitating installation and securement of the cover 2. A perforation 23 is provided at the top of the cover 2 to facilitate the passage of the top end of the ion exchange resin filter 3 through the cover 2. A drain pipe 25 is provided in the middle of the top end of the cover 2, and a third flange 26 is located at the top of the drain pipe 25. These drain pipes 25 and third flange 26 facilitate the removal of water after hardness reduction from the entire device.

[0038] like Figure 5As shown, a suction pipe 31 is provided on one side of the top of the ion exchange resin filter 3. The suction pipe 31 is conveniently passed through the perforation 23 to facilitate the suction of wastewater between the ion exchange resin filter 3 and the reverse osmosis filter 4 by an external suction pump. A limit platform 32 is provided on the inner side of the top opening of the ion exchange resin filter 3 to facilitate mutual limitation with the reverse osmosis filter 4. A sealing groove 33 is provided on the upper surface of the limit platform 32 to facilitate the sealing between the limit platform 32 and the reverse osmosis filter 4. A fifth flange 34 is provided at the top opening of the filter to facilitate the connection between the ion exchange resin filter 3 and the fourth flange 28.

[0039] like Figure 6 As shown, a pressure ring 41 is provided at the top of the reverse osmosis filter 4, and the bottom surface of the pressure ring 41 is aligned with the sealing groove 33 to seal the gasket. This structure facilitates the sealing process between the reverse osmosis filter 4 and the ion exchange resin.

[0040] like Figure 1 and Figure 7 As shown, it also includes an ultraviolet germicidal lamp 5. Threaded holes 24 are symmetrically provided on both sides of the top of the cover 2. The ultraviolet germicidal lamp 5 is installed in the threaded holes 24. The threaded holes 24 are convenient for installing the ultraviolet germicidal lamp 5. A threaded connector 51 is provided on the top of the ultraviolet germicidal lamp 5. The threaded connector 51 is threadedly connected to the threaded hole 24. The threaded connector 51 is convenient for connecting the ultraviolet germicidal lamp 5 to the threaded hole 24. A clamping joint 52 is provided on the top of the ultraviolet germicidal lamp 5. The clamping joint 52 is pressed against the upper surface of the cover 2, thereby ensuring the stable installation of the ultraviolet germicidal lamp 5. A wire 53 is provided on the top of the ultraviolet germicidal lamp 5. An electrical plug 54 is provided at the end of the wire 53. The electrical plug 54 is used to energize the ultraviolet germicidal lamp 5.

[0041] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A wastewater treatment device for reducing water hardness, comprising a treatment tank (1), characterized in that: The top of the treatment tank (1) is provided with a cover (2), and the bottom surface of the cover (2) is provided with a connecting pipe (27), a fourth flange (28) is provided on the connecting pipe (27), the fourth flange (28) is connected to an ion exchange resin filter (3), a gap is provided between the ion exchange resin filter (3) and the inner wall of the treatment tank (1), a reverse osmosis filter (4) is provided inside the ion exchange resin filter (3), the bottom of the connecting pipe (27) is inserted into the inner side of the top opening of the ion exchange resin filter (3), and the bottom end of the connecting pipe (27) is pressed tightly against the top of the reverse osmosis filter (4).

2. A wastewater treatment device for reducing water hardness according to claim 1, characterized in that: The top of the processing tank (1) is provided with a connection plate (11), and the edge of the connection plate (11) is evenly provided with a plurality of connection holes (12); and the bottom edge of the processing tank (1) is evenly provided with a plurality of support rods (13), and the bottom end of the support rod (13) is provided with a bottom ring (14), and the bottom ring (14) is evenly provided with a plurality of bolt holes (15).

3. A wastewater treatment device for reducing water hardness according to claim 2, characterized in that: A sewage discharge pipe (16) is provided at the bottom of the side of the treatment tank (1), and a first flange (17) is provided at the end of the sewage discharge pipe (16); a water inlet pipe (18) is provided at the bottom of the treatment tank (1), and a second flange (19) is provided at the end of the water inlet pipe (18).

4. A wastewater treatment device for reducing water hardness according to claim 1, characterized in that: The bottom end of the side of the cover (2) is provided with a mounting ring (21), the edge of the mounting ring (21) is evenly provided with a plurality of mounting holes (22), the top of the cover (2) is provided with a through hole (23), the middle part of the top of the cover (2) is provided with a drain pipe (25), and the top of the drain pipe (25) is provided with a third flange (26).

5. A wastewater treatment device for reducing water hardness according to claim 1, characterized in that: A sewage suction pipe (31) is provided on one side of the top of the ion exchange resin filter (3), and a limiting platform (32) is provided inside the top opening of the ion exchange resin filter (3), a sealing groove (33) is provided on the upper surface of the limiting platform (32), and a fifth flange (34) is provided at the top opening of the filter.

6. A wastewater treatment device for reducing water hardness according to claim 5, characterized in that: A pressure ring (41) is provided at the top of the reverse osmosis filter (4), and the bottom surface of the pressure ring (41) is aligned with the sealing groove (33) to form a sealing gasket.

7. A wastewater treatment device for reducing water hardness according to any one of claims 1 to 6, characterized in that: The invention also includes an ultraviolet germicidal lamp (5), wherein threaded holes (24) are symmetrically provided on both sides of the top of the cover (2), and the ultraviolet germicidal lamp (5) is installed in the threaded holes (24). A threaded connector (51) is provided on the top of the ultraviolet germicidal lamp (5), and the threaded connector (51) is threadedly connected to the threaded hole (24). A compression joint (52) is provided on the top of the ultraviolet germicidal lamp (5), and the compression joint (52) is compressed on the upper surface of the cover (2). A wire (53) is provided on the top of the ultraviolet germicidal lamp (5), and an electric plug (54) is provided at the end of the wire (53). The electric plug (54) is used to energize the ultraviolet germicidal lamp (5).

Images