A wastewater filtration and purification device

Abstract

This invention relates to the field of wastewater treatment technology, and in particular to a wastewater filtration and purification device. The device includes a housing, a partition fixedly connected to the housing, multiple support blocks fixedly connected to the partition, and multi-stage filter screens placed on the support blocks. A mounting base fixedly connected to the housing is located at the lower end of the partition, and a filter element is mounted on the mounting base. A second connecting pipe with reciprocating threads is connected to the partition, and a first connecting pipe is driven by a unidirectional drive mechanism. A transparent water-guiding cover is connected to the lower end of the mounting base. Multiple ultraviolet lamps are installed on the lower inner wall of the housing, and the lower end of the transparent water-guiding cover extends out of the housing. This invention prevents the filter element from having a denser top and a sparser bottom, thereby avoiding stress concentration in the filter element, which could lead to delamination or cracking, and thus extending the service life of the filter element.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater filtration and purification device. Background Technology

[0002] In wastewater treatment, filtration is generally used to remove solid particles from the wastewater. Subsequent deep filtration processes sometimes utilize filter cartridges. When water flows from top to bottom through the filter cartridge, suspended solids first contact the upper filter media. Larger particles are quickly trapped in the inlet area, resulting in a significantly higher accumulation of blockage at the top than at the bottom. This uneven distribution of blockage on the filter cartridge can cause localized overloading, leading to a denser top and sparser bottom, resulting in stress concentration and making the filter cartridge prone to delamination or cracking, thus affecting its lifespan. Summary of the Invention

[0003] The purpose of this invention is to solve the problem in the prior art where the filter element is dense at the top and sparse at the bottom, which leads to stress concentration in the filter element, easily causing delamination or cracking, and affecting the service life of the filter element. Therefore, a wastewater filtration and purification device is proposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a wastewater filtration and purification device, including a housing, a partition fixedly connected to the housing, a plurality of support blocks fixedly connected to the partition, and a multi-stage filter screen placed on the plurality of support blocks, the multi-stage filter screen being, from top to bottom, a coarse filter screen, a fine filter screen, and an activated carbon filter screen.

[0006] The lower end of the partition is provided with a mounting base fixedly connected to the housing. A filter element is installed on the mounting base. A second connecting pipe is connected to the partition. The second connecting pipe is provided with a reciprocating thread. A first connecting pipe is threaded to the reciprocating thread. A water outlet pipe is connected to the first connecting pipe. The water outlet of the water outlet pipe is perpendicular to the filter element. The first connecting pipe is driven by a one-way drive mechanism.

[0007] A transparent water guide cover is connected to the lower end of the mounting base, and multiple ultraviolet lamps are provided on the lower inner wall of the housing. The lower end of the transparent water guide cover extends out of the housing.

[0008] Preferably, a top cover is fixedly connected to the housing by bolts, and an observation port is provided on the top cover.

[0009] Preferably, the one-way drive mechanism includes a one-way bearing, a connecting sleeve is fitted on the first connecting pipe, a limiting groove is formed on the connecting sleeve, a connecting strip is fixedly connected to the first connecting pipe, the connecting strip is located in the limiting groove, a support frame is rotatably connected to the connecting sleeve through the bearing, the support frame is fixedly connected to the partition plate, a first gear is rotatably connected to the connecting sleeve through the one-way bearing, a rack is meshed on the first gear, a T-shaped sliding groove is formed on the rack, a T-shaped slider is slidably arranged in the T-shaped sliding groove, the T-shaped slider is fixedly connected to the support frame, a hinge plate is hinged to the rack, a connecting column is fixedly connected to the hinge plate, the connecting column passes through the partition plate and the multi-stage filter screen, and a floating block is fixedly connected to the upper end of the connecting column.

[0010] Preferably, a sealing sleeve is provided on the connecting column, and the sealing sleeve abuts against the partition.

[0011] Preferably, a support ring is fixedly connected to the housing, and an annular sealing gasket is abutted on the support ring. Multiple threaded sleeves are provided on the multi-stage filter screen, and screws are threaded into each of the multiple threaded sleeves. The multiple screws are threaded through the partition and threadedly connected to the support ring.

[0012] Preferably, a counterweight is fixedly connected to the floating block.

[0013] Preferably, a ring is fixedly connected to the partition plate, a second gear meshes with the first gear, a rotating shaft is fixedly connected to the second gear, the rotating shaft is rotatably connected to the housing via a bearing, the rotating shaft is coaxial with the ring, the number of teeth of the second gear is less than the number of teeth of the first gear, a connecting cylinder is fixedly connected to the rotating shaft, a movable column is provided inside the connecting cylinder, an abutment block is fixedly connected to the movable column, a spring is fixedly connected between the abutment block and the rotating shaft, and the abutment block is in contact with the ring.

[0014] Preferably, the spring is sleeved on the connecting cylinder and the movable column.

[0015] The wastewater filtration and purification device proposed in this invention has the following advantages: the first connecting pipe is rotated by a unidirectional drive mechanism, thereby adjusting the position of the first connecting pipe on the second connecting pipe. This causes the outlet pipe to rotate as it rises, thus making the outlet of the outlet pipe move in a spiral motion. This disperses the outflowing water to different areas of the filter element, avoiding single-point overload clogging. This prevents the filter element from becoming denser at the top and sparser at the bottom, avoiding stress concentration in the filter element, which could lead to delamination or cracking. This, in turn, helps to extend the service life of the filter element. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a wastewater filtration and purification device proposed in this invention;

[0017] Figure 2 This is a three-dimensional cross-sectional view of a wastewater filtration and purification device proposed in this invention.

[0018] Figure 3 This invention proposes a wastewater filtration and purification device. Figure 2 The front view;

[0019] Figure 4 This is a perspective view of the filter element and multi-stage filter screen of a wastewater filtration and purification device proposed in this invention.

[0020] Figure 5 This is a perspective view of the outlet pipe and the second connecting pipe of a wastewater filtration and purification device proposed in this invention.

[0021] Figure 6 This invention proposes a wastewater filtration and purification device. Figure 5 The front view;

[0022] Figure 7 This is a perspective view of the rack and first gear portion of a wastewater filtration and purification device proposed in this invention.

[0023] Figure 8 This is a perspective view of the annular portion of a wastewater filtration and purification device proposed in this invention;

[0024] Figure 9 This is a schematic diagram of the structure of the multi-stage filter screen part of a sewage filtration and purification device proposed in this invention.

[0025] In the diagram: 1. Shell; 2. Cover; 3. Filter element; 4. Mounting base; 5. Transparent water guide cover; 6. Ultraviolet lamp; 7. Outlet pipe; 8. Multi-stage filter screen; 9. Partition plate; 10. Support ring; 11. Floating block; 12. Connecting column; 13. First connecting pipe; 14. Second connecting pipe; 15. First gear; 16. Hinge plate; 17. Rack; 18. Support frame; 19. Rotating shaft; 20. Ring; 21. One-way bearing; 22. Connecting strip; 23. Connecting sleeve; 24. Second gear; 25. Abutment block; 26. Spring; 27. Connecting cylinder; 28. Moving column; 29. ​​T-shaped slider; 30. T-shaped groove; 31. Support block; 32. Coarse filter screen; 33. Fine filter screen; 34. Activated carbon filter screen. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1: Refer to Figure 1-9 A wastewater filtration and purification device includes a housing 1 and an upper cover 2 connected to an inlet pipe through which wastewater enters. A partition 9 is fixedly connected to the housing 1, and multiple support blocks 31 are fixedly connected to the partition 9. Multi-stage filter screens 8 are placed on the multiple support blocks 31. The multi-stage filter screens 8 are arranged from top to bottom as a coarse filter screen 32, a fine filter screen 33, and an activated carbon filter screen 34. The coarse filter screen 32 intercepts large particles, the fine filter screen 33 intercepts smaller suspended solids, and the activated carbon filter screen 34 adsorbs and eliminates odors in the water.

[0028] The support block 31 supports the multi-stage filter screen. The multi-stage filter screen 8 abuts against the housing 1 and performs multi-stage filtration of sewage through the multi-stage filter screen 8. The housing 1 is fixedly connected to the top cover 2 by bolts. The top cover 2 is provided with an observation port for observing the water level. At the same time, when the multi-stage filter screen 8 is blocked, the blockage on the multi-stage filter screen 8 can be removed through the observation port.

[0029] The lower end of the partition 9 is provided with a mounting base 4 fixedly connected to the housing 1. A filter element 3 is mounted on the mounting base 4, and a water outlet is provided on the mounting base 4. Water treated by the filter element 3 flows into the transparent water guide cover 5 through the water outlet. A second connecting pipe 14 is connected to the partition 9. The second connecting pipe 14 is provided with a reciprocating thread, and a first connecting pipe 13 is threaded onto the reciprocating thread. A water outlet pipe 7 is connected to the first connecting pipe 13. The water outlet of the water outlet pipe 7 is perpendicular to the filter element 3. A connecting sleeve is fitted on the first connecting pipe 13. 23. A limiting groove is provided on the connecting sleeve 23. A connecting strip 22 is fixedly connected to the first connecting pipe 13. The connecting strip 22 is located in the limiting groove. The connecting sleeve 23 is rotatably connected to the support frame 18 through the bearing. The support frame 18 is fixedly connected to the partition plate 9. The first connecting pipe 13 is driven by a one-way drive mechanism. Water that has undergone preliminary filtration flows into the first connecting pipe 13 through the second connecting pipe 14 and is discharged into the outlet pipe 7. It is filtered through the filter element 3 and flows into the transparent water guide cover 5 through the through hole in the middle of the filter element 3 and the water outlet hole. The one-way drive mechanism drives the first connecting pipe 13 to rotate, thereby adjusting the position of the first connecting pipe 13 on the second connecting pipe 14. This causes the outlet pipe 7 to rotate when it rises, thereby making the outlet of the outlet pipe 7 move in a spiral motion so that the water flowing out is dispersed to different areas of the filter element 3. This avoids single-point overload clogging and prevents the filter element 3 from becoming dense at the top and sparse at the bottom. It also prevents stress concentration in the filter element 3, which could lead to delamination or cracking of the filter element 3, thus helping to extend the service life of the filter element 3.

[0030] A transparent water guide cover 5 is connected to the lower end of the mounting base 4. Multiple ultraviolet lamps 6 are installed on the lower inner wall of the housing 1. The lower end of the transparent water guide cover 5 extends out of the housing 1 to allow the light to pass through. The ultraviolet lamps 6 are used to disinfect and sterilize the water flowing out after the filter element 3 is treated.

[0031] The one-way drive mechanism includes a one-way bearing 21. A first gear 15 is rotatably connected to the connecting sleeve 23 via the one-way bearing 21. A rack 17 meshes with the first gear 15. The rack 17 has a T-shaped groove 30, and a T-shaped slider 29 is slidably disposed within the T-shaped groove 30. The T-shaped slider 29 and the T-shaped groove 30 limit the rack 17, preventing it from shifting during movement. The T-shaped slider 29 is fixedly connected to the support frame 18. A hinge plate 16 is hinged to the rack 17, and a connecting column 12 is fixedly connected to the hinge plate 16. The connecting column 12 passes through the partition 9 and the multi-stage filter screen 8. A floating block 11 is fixedly connected to the upper end of the connecting column 12. Because larger particles are intercepted by the multi-stage filter screen 8, the filtration speed of the multi-stage filter screen 8 slows down, causing the water level on the multi-stage filter screen 8 to rise. The floating block 11 is buoyed by the water, driving the connecting column 12 to move upward, thereby... Pulling the lower end of the hinge plate 16 will move the rack 17, which in turn drives the first gear 15 to rotate. The one-way bearing 21 is locked. The first gear 15 will drive the connecting sleeve 23 to rotate. Under the action of the connecting bar 22 and the limiting groove, the first connecting pipe 13 will rotate synchronously, causing the first connecting pipe 13 to rotate on the reciprocating thread and move the water outlet pipe 7 in a spiral motion. After cleaning the multi-stage filter screen 8, a counterweight is fixedly connected to the float 11 (not shown in the diagram). Under the action of the counterweight, the float 11 will automatically reset. Since the one-way bearing 21 is in a free-rotating state at this time, when the rack 17 moves and drives the first gear 15 to rotate, it will not drive the connecting sleeve 23 to rotate. The cleaning is done once every time the water level rises. When the water level rises, the position of the water outlet end of the water outlet pipe 7 will change once, dispersing the water to different areas of the filter element 3.

[0032] A sealing sleeve is provided on the connecting column 12, and the sealing sleeve abuts against the partition 9. The sealing sleeve plays a role in sealing the connection between the connecting column 12 and the partition 9.

[0033] Example 2: Refer to Figure 1-3In another preferred embodiment of the present invention, based on embodiment 1, a support ring 10 is fixedly connected to the housing 1, and an annular sealing gasket is abutted on the support ring 10. The annular sealing gasket plays a sealing role between the support ring 10 and the partition 9. Multiple threaded sleeves are provided on the multi-stage filter screen 8, and screws are threaded inside the multiple threaded sleeves. The multiple screws are threaded through the partition 9 and threadedly connected to the support ring 10. By opening the upper cover 2 and loosening the screws, the multi-stage filter screen 8 and the partition 9 can be taken out together so that the filter element 3 can be removed from the mounting base 4 for replacement. The screws and threaded sleeves are made of stainless steel to prevent rust and damage. Other metal materials can also be made of stainless steel.

[0034] Example 3: In Example 2, because the solid matter in the sewage is unevenly distributed, when there is a large amount of solid matter in the sewage for a certain period of time, the water level on the multi-stage filter screen 8 will rise rapidly. This will cause the floating block 11 to move upward rapidly, resulting in the rack 17 driving the first gear 15 to rotate at a faster speed. This will cause the spiral of the outlet pipe 7 to rotate at a faster speed, which will rapidly agitate the water outside the filter element 3, leading to turbulent water flow and uneven flow velocity on the surface of the filter media. When the flow velocity is too high in a local area, impurities are not effectively intercepted and are washed downstream, thus affecting the filtration effect. (Refer to...) Figure 1-8 As another preferred embodiment of the present invention, based on embodiment 1.

[0035] A ring 20 is fixedly connected to the partition 9. A second gear 24 meshes with the first gear 15. A rotating shaft 19 is fixedly connected to the second gear 24. The rotating shaft 19 is rotatably connected to the housing 1 via a bearing. The rotating shaft 19 and the ring 20 are coaxially arranged. The number of teeth of the second gear 24 is less than the number of teeth of the first gear 15. A connecting cylinder 27 is fixedly connected to the rotating shaft 19. A moving column 28 is provided inside the connecting cylinder 27. An abutment block 25 is fixedly connected to the moving column 28. The abutment block 25 contacts the ring 20. A spring 26 is fixedly connected between the abutment block 25 and the rotating shaft 19. When the first gear 15 rotates, it will drive the second gear 24 to rotate. The number of teeth on wheel 24 is less than that on the first gear 15, which will drive the second gear 24 to accelerate. When the second gear 24 rotates, it will drive the shaft 19 to rotate. Under the action of centrifugal force, the abutment block 25 will move outward, causing the abutment block 25 to abut against the ring 20, increasing the resistance during rotation and limiting the speed of the second gear 24. This prevents the second gear 24 from rotating too fast, thereby limiting the speed of the first gear 15 and preventing the first gear 15 from rotating too fast. This ensures that the first gear 15 can only rotate slowly, avoiding water flow turbulence and excessively high flow velocity in local areas, thus preventing situations that affect the filtration effect.

[0036] Spring 26 is sleeved on connecting cylinder 27 and moving column 28. Spring 26 resets the position of abutment block 25 and adjusts the position of moving column 28 in connecting cylinder 27 when centrifugal force is generated.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wastewater filtration and purification device, comprising a housing (1), characterized in that, A partition (9) is fixedly connected to the shell (1), and a plurality of support blocks (31) are fixedly connected to the partition (9). A multi-stage filter screen (8) is placed on the plurality of support blocks (31). The multi-stage filter screen (8) is arranged from top to bottom as a coarse filter screen (32), a fine filter screen (33), and an activated carbon filter screen (34). The lower end of the partition (9) is provided with a mounting base (4) fixedly connected to the housing (1). A filter element (3) is installed on the mounting base (4). A second connecting pipe (14) is connected to the partition (9). A reciprocating thread is provided on the second connecting pipe (14). A first connecting pipe (13) is threaded to the reciprocating thread. A water outlet pipe (7) is connected to the first connecting pipe (13). The water outlet of the water outlet pipe (7) is perpendicular to the filter element (3). The first connecting pipe (13) is driven by a one-way drive mechanism. The lower end of the mounting base (4) is connected to a transparent water guide cover (5), and multiple ultraviolet lamps (6) are provided on the lower inner wall of the housing (1). The lower end of the transparent water guide cover (5) extends out of the housing (1). The one-way drive mechanism includes a one-way bearing (21), a connecting sleeve (23) is fitted on the first connecting pipe (13), a limiting groove is formed on the connecting sleeve (23), a connecting strip (22) is fixedly connected to the first connecting pipe (13), the connecting strip (22) is located in the limiting groove, the connecting sleeve (23) is rotatably connected to a support frame (18) through the bearing, the support frame (18) is fixedly connected to the partition plate (9), and a first gear (15) is rotatably connected to the connecting sleeve (23) through the one-way bearing (21). A rack (17) meshes with the first gear (15). The rack (17) has a T-shaped groove (30). A T-shaped slider (29) is slidably arranged in the T-shaped groove (30). The T-shaped slider (29) is fixedly connected to the support frame (18). A hinge plate (16) is hinged to the rack (17). A connecting column (12) is fixedly connected to the hinge plate (16). The connecting column (12) passes through the partition (9) and the multi-stage filter screen (8). A floating block (11) is fixedly connected to the upper end of the connecting column (12). A counterweight is fixedly connected to the floating block (11); A ring (20) is fixedly connected to the partition (9). A second gear (24) meshes with the first gear (15). A rotating shaft (19) is fixedly connected to the second gear (24). The rotating shaft (19) is rotatably connected to the housing (1) through a bearing. The rotating shaft (19) is coaxial with the ring (20). The number of teeth of the second gear (24) is less than the number of teeth of the first gear (15). A connecting cylinder (27) is fixedly connected to the rotating shaft (19). A moving column (28) is provided inside the connecting cylinder (27). An abutment block (25) is fixedly connected to the moving column (28). A spring (26) is fixedly connected between the abutment block (25) and the rotating shaft (19). The abutment block (25) is in contact with the ring (20).

2. The wastewater filtration and purification equipment according to claim 1, characterized in that, The housing (1) is fixedly connected to the top cover (2) by bolts, and the top cover (2) is provided with an observation port.

3. The wastewater filtration and purification equipment according to claim 1, characterized in that, A sealing sleeve is provided on the connecting column (12), and the sealing sleeve abuts against the partition (9).

4. The wastewater filtration and purification equipment according to claim 1, characterized in that, A support ring (10) is fixedly connected to the housing (1), and an annular sealing gasket is abutted on the support ring (10). Multiple threaded sleeves are provided on the multi-stage filter screen (8), and screws are threaded inside the multiple threaded sleeves. The multiple screws are threaded through the partition (9) and threadedly connected to the support ring (10).

5. The wastewater filtration and purification equipment according to claim 1, characterized in that, The spring (26) is sleeved on the connecting cylinder (27) and the moving column (28).

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