Wastewater filter for wastewater treatment

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a wastewater filter for wastewater treatment, which comprises a filter tank, a first annular seat is arranged on the inner wall of the filter tank, the edge of the first annular seat is slidably sleeved with the filter tank, and the joint of the first annular seat and the filter tank is fixedly assembled through a screw. The inner side of the first annular base is wrapped with a gravel filter, and the gravel filter is of a protruding circular truncated cone structure. The gravel filter is arranged along the upper layer position in the filtering tank, the activated carbon filter is arranged along the lower layer position in the filtering tank, double filtration can be performed when wastewater enters the filtering tank, the gravel filter can remove suspended solids and particulate matters in water, and the activated carbon filter can remove organic matters, chroma and peculiar smell in water; therefore, basic filtration of the wastewater is realized.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater filter for wastewater treatment. Background Technology

[0002] Wastewater treatment refers to the process of removing or reducing harmful substances in sewage or industrial wastewater through physical, chemical, and biological methods to meet certain water quality standards so that they can be directly discharged into natural water bodies or reused.

[0003] The goal of wastewater treatment is to remove or reduce harmful substances in wastewater to a certain extent so that they meet discharge or reuse standards. At the same time, wastewater treatment should also pay attention to energy conservation, emission reduction and environmental protection, and minimize secondary pollution generated during the treatment process.

[0004] Wastewater treatment has a wide range of applications, including urban sewage treatment, industrial wastewater treatment, and agricultural wastewater treatment. With the continuous improvement of environmental protection requirements, the importance of wastewater treatment is becoming increasingly prominent.

[0005] Currently, the basic process for wastewater treatment requires filtration, especially for particulate matter, organic matter, color, and odor. Since most filter structures are fixed plate or cylindrical, plate filters are prone to partial or complete clogging when filtering particulate matter, which greatly affects the smoothness of wastewater filtration. Cylindrical filters are prone to uneven contact when treating organic matter or odor, which greatly reduces the quality of treatment. Utility Model Content

[0006] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a wastewater filter for wastewater treatment.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Design a wastewater filter for wastewater treatment, including a filter tank. A first annular seat is provided on the inner wall of the filter tank, and the edge of the first annular seat is slidably sleeved with the filter tank. The connection between the first annular seat and the filter tank is fixedly assembled by screws. A sand filter is wrapped inside the first annular seat. The sand filter has a raised frustum structure.

[0009] The inner wall of the filter can is also provided with a second annular seat, and the edge of the second annular seat is slidably sleeved with the filter can. The connection between the second annular seat and the filter can is fixedly assembled by screws. A filter cylinder is rotatably sleeved on the inner side of the second annular seat, and several through holes are opened on the surface of the filter cylinder. An activated carbon filter is wrapped inside the filter cylinder.

[0010] A sealed bearing is installed through one side of the filter tank, and the connection between the sealed bearing and the filter tank is fixed by welding. A motor is installed on the outside of the filter tank, and the outer wall of the motor is fixedly assembled to the filter tank by a bracket. A drive shaft is installed inside the motor, and the surface of the shaft penetrates the inside of the sealed bearing. The shaft and the inner ring wall of the sealed bearing are interference-fitted. A linkage bevel gear is fixedly sleeved on the outer ring wall of the filter cartridge, and a drive bevel gear is fixed at the end of the shaft. The drive bevel gear and the linkage bevel gear are meshed with each other.

[0011] In detail, the upper end of the filter tank is fixed with an end cap, and a one-way valve for overflow is installed through the center of the end cap.

[0012] In detail, a water inlet is provided through the upper end of the end cap, and the water inlets are symmetrically distributed along the upper end of the end cap. A water inlet valve is provided on the surface of the water inlet, and the valve core of the water inlet valve is embedded and fixed inside the water inlet.

[0013] In detail, the filter tank has a discharge port at its lower end and a drainage interface is fixed at the lower end of the filter tank, with the drainage interface covering the lower end of the discharge port.

[0014] In detail, a backwashing port is provided through one side of the filter tank. The connection between the backwashing port and the filter tank is fixed by welding. A backwashing valve is provided on the surface of the backwashing port, and the valve core of the backwashing valve is embedded and fixed inside the backwashing port.

[0015] In detail, the sand filter includes a first isolation layer, a support layer, a second isolation layer, a filter layer and a third isolation layer. The support layer is filled between the first isolation layer and the second isolation layer, and the filter layer is filled between the second isolation layer and the third isolation layer.

[0016] In detail, the first, second, and third isolation layers are all made of stainless steel wire mesh.

[0017] In detail, the support layer is made of pebble material, and the width or diameter of the pebble does not exceed one centimeter.

[0018] In detail, the filter layer is made of quartz sand.

[0019] The design scheme proposed in this utility model has the following beneficial effects in application:

[0020] 1. By installing a sand filter at the top and an activated carbon filter at the bottom in the filter tank, wastewater can undergo dual filtration upon entering the filter tank. The sand filter removes suspended solids and particulate matter from the water, while the activated carbon filter removes organic matter, color, and odor from the water, thus achieving basic filtration of the wastewater.

[0021] 2. The sand and gravel filter has a raised frustum structure, which can prevent the wastewater from being blocked by particulate matter on the outer isolation layer of the sand and gravel filter during wastewater filtration. Driven by a motor, two bevel gears can be mutually driven, allowing the filter cartridge to carry the activated carbon filter and rotate in a ring around the second annular seat. This achieves the effect of centrifugal filtration, improves the uniformity of contact between wastewater and activated carbon filter, and ensures filtration quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is an enlarged schematic diagram of point a in this utility model;

[0025] Figure 4 This is a schematic diagram of the composition and structure of the sand and gravel filter of this utility model.

[0026] In the diagram: 10. Filter tank; 11. First annular seat; 12. Sand filter; 13. Second annular seat; 14. Filter cartridge; 15. Through hole; 16. Linkage bevel gear; 17. Sealed bearing; 18. Motor; 19. Rotating shaft; 110. Drive bevel gear; 111. Activated carbon filter; 20. End cap; 21. Water inlet; 22. Water inlet valve; 30. Discharge port; 31. Drainage port; 40. Backwash port; 41. Backwash valve; 50. First isolation layer; 51. Support layer; 52. Second isolation layer; 53. Filter layer; 54. Third isolation layer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Reference Figures 1-4A wastewater filter for wastewater treatment includes a filter tank 10. A first annular seat 11 is provided on the inner wall of the filter tank 10, and the edge of the first annular seat 11 is slidably sleeved with the filter tank 10. The connection between the first annular seat 11 and the filter tank 10 is fixedly assembled by screws. A sand filter 12 is wrapped inside the first annular seat 11. The sand filter 12 is a raised frustum structure.

[0029] A second annular seat 13 is also provided on the inner wall of the filter tank 10, and the edge of the second annular seat 13 is slidably sleeved with the filter tank 10. The connection between the second annular seat 13 and the filter tank 10 is fixedly assembled by screws. A filter cylinder 14 is rotatably sleeved on the inner side of the second annular seat 13, and a number of through holes 15 are opened on the surface of the filter cylinder 14. An activated carbon filter 111 is wrapped inside the filter cylinder 14.

[0030] A sealed bearing 17 is installed through one side of the filter tank 10. The connection between the sealed bearing 17 and the filter tank 10 is fixed by welding. A motor 18 is installed on the outside of the filter tank 10. The outer wall of the motor 18 is fixedly assembled with the filter tank 10 by a bracket. A drive shaft 19 is installed inside the motor 18. The surface of the shaft 19 penetrates the inside of the sealed bearing 17. The shaft 19 and the inner ring wall of the sealed bearing 17 are press-fitted. A linkage bevel gear 16 is fixedly sleeved on the outer ring wall of the filter cartridge 14. A drive bevel gear 110 is fixed at the end of the shaft 19. The drive bevel gear 110 and the linkage bevel gear 16 are meshed with each other.

[0031] It should be further noted that an end cap 20 is fixed to the upper end of the filter tank 10, and a one-way valve 23 for overflow is installed through the center of the end cap 20.

[0032] It should be further noted that a water inlet 21 is provided through the upper end of the end cap 20. The water inlet 21 is symmetrically distributed along the upper end of the end cap 20. A water inlet valve 22 is provided on the surface of the water inlet 21, and the valve core of the water inlet valve 22 is embedded and fixed inside the water inlet 21.

[0033] It should be further noted that the filter tank 10 has a discharge port 30 at its lower end and a drain interface 31 is fixed at its lower end. The drain interface 31 covers the lower end of the discharge port 30. The drain interface 31 can be used not only as a drain port after wastewater filtration, but also as an inlet for backwashing.

[0034] It should be further noted that a backwashing port 40 is provided through one side of the filter tank 10. The connection between the backwashing port 40 and the filter tank 10 is fixed by welding. A backwashing valve 41 is provided on the surface of the backwashing port 40. The valve core of the backwashing valve 41 is embedded and fixed inside the backwashing port 40. When backwashing is performed at the drain port 31, the deposits of the activated carbon filter 111 can be discharged through the backwashing port 40.

[0035] It should be further noted that the sand filter 12 includes a first isolation layer 50, a support layer 51, a second isolation layer 52, a filter layer 53 and a third isolation layer 54. The support layer 51 is filled between the first isolation layer 50 and the second isolation layer 52, and the filter layer 53 is filled between the second isolation layer 52 and the third isolation layer 54.

[0036] It should be further noted that the first isolation layer 50, the second isolation layer 52 and the third isolation layer 53 are all made of stainless steel wire mesh, which can ensure the stability of the support layer 51 and the filter layer 53.

[0037] It should be further noted that the support layer 51 is made of pebble material, and the width or diameter of the pebble does not exceed one centimeter. The support layer 51 made of pebble material can support the filter layer 53 and prevent it from becoming loose.

[0038] It should be further noted that the filter layer 53 is made of quartz sand, which is capable of filtering particulate matter or suspended matter.

[0039] Working method: When it is necessary to filter particulate matter, organic matter and odor of wastewater, the wastewater can be injected into the filter tank 10 by connecting the external pipe to the water inlet 21 and opening the water inlet valve 22. The sand filter 12 has a raised frustum structure, which can prevent the wastewater from being blocked due to particulate matter clogging the outer isolation layer of the sand filter 12.

[0040] Driven by the motor 18, the two bevel gears can be driven to drive each other, so that the filter cartridge 14 can carry the activated carbon filter 111 and rotate in a ring around the second annular seat 13. This achieves the effect of centrifugal filtration, improves the uniformity of contact between wastewater and activated carbon filter 111, ensures filtration quality, and the through hole 15 ensures the normal passage of wastewater. Finally, the filtered wastewater can be discharged through the discharge port 30 and the drainage interface 31.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wastewater filter for wastewater treatment, comprising a filter tank (10), characterized in that: The filter tank (10) is provided with a first annular seat (11) on its inner wall, and the edge of the first annular seat (11) is slidably sleeved with the filter tank (10). The connection between the first annular seat (11) and the filter tank (10) is fixedly assembled by screws. The inner side of the first annular seat (11) is wrapped with a sand filter (12), which is a raised frustum structure. The filter tank (10) is also provided with a second annular seat (13) on its inner wall. The edge of the second annular seat (13) is slidably sleeved with the filter tank (10). The connection between the second annular seat (13) and the filter tank (10) is fixedly assembled by screws. The filter cylinder (14) is rotatably sleeved on the inner side of the second annular seat (13). The surface of the filter cylinder (14) is provided with several through holes (15). The inner side of the filter cylinder (14) is wrapped with an activated carbon filter (111). A sealed bearing (17) is provided through one side of the filter tank (10). The connection between the sealed bearing (17) and the filter tank (10) is fixed by welding. A motor (18) is provided on the outside of the filter tank (10). The outer wall of the motor (18) is fixedly assembled with the filter tank (10) by a bracket. A rotating shaft (19) for driving is provided inside the motor (18). The surface of the rotating shaft (19) penetrates the inside of the sealed bearing (17). The rotating shaft (19) and the inner ring wall of the sealed bearing (17) are press-fitted. A linkage bevel gear (16) is fixedly sleeved on the outer ring wall of the filter cylinder (14). A driving bevel gear (110) is fixed at the end of the rotating shaft (19). The driving bevel gear (110) and the linkage bevel gear (16) are meshed with each other.

2. A wastewater filter for wastewater treatment according to claim 1, characterized in that: The filter tank (10) is fixed with an end cap (20) at the upper end, and a one-way valve (23) for overflow is installed through the center of the end cap (20).

3. A wastewater filter for wastewater treatment according to claim 2, characterized in that: The upper end of the end cap (20) is provided with a water inlet (21). The water inlet (21) is symmetrically distributed along the upper end of the end cap (20). A water inlet valve (22) is provided on the surface of the water inlet (21). The valve core of the water inlet valve (22) is embedded and fixed inside the water inlet (21).

4. A wastewater filter for wastewater treatment according to claim 1, characterized in that: The filter tank (10) has a discharge port (30) at its lower end and a drainage interface (31) is fixed at its lower end, with the drainage interface (31) covering the lower end of the discharge port (30).

5. A wastewater filter for wastewater treatment according to claim 1, characterized in that: A backwashing port (40) is provided through one side of the filter tank (10). The connection between the backwashing port (40) and the filter tank (10) is fixed by welding. A backwashing valve (41) is provided on the surface of the backwashing port (40). The valve core of the backwashing valve (41) is embedded and fixed inside the backwashing port (40).

6. A wastewater filter for wastewater treatment according to claim 5, characterized in that: The sand filter (12) includes a first isolation layer (50), a support layer (51), a second isolation layer (52), a filter layer (53) and a third isolation layer (54). The support layer (51) is filled between the first isolation layer (50) and the second isolation layer (52), and the filter layer (53) is filled between the second isolation layer (52) and the third isolation layer (54).

7. A wastewater filter for wastewater treatment according to claim 6, characterized in that: The first isolation layer (50), the second isolation layer (52) and the third isolation layer (54) are all made of stainless steel wire mesh.

8. A wastewater filter for wastewater treatment according to claim 7, characterized in that: The support layer (51) is made of pebble material, and the width or diameter of the pebble does not exceed one centimeter.

9. A wastewater filter for wastewater treatment according to claim 8, characterized in that: The filter layer (53) is made of quartz sand.

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