Municipal sewage filtering device

Abstract

The utility model provides a municipal sewage filtering device and belongs to the technical field of sewage treatment. Comprising a filter box, a sewage filter cartridge is rotationally connected in the filter box, a water outlet groove is formed in the inner bottom of the filter box and located below the sewage filter cartridge, a water drainage pipe is connected to the bottom end of the filter box and communicated with the water outlet groove, universal wheels are installed at the four corners of the bottom end of the filter box, and the universal wheels are connected with the water outlet groove. A first water inlet pipe is fixedly connected to the outer wall of one side of the filtering box, and one end of the first water inlet pipe extends into the sewage filtering cylinder. According to the municipal sewage filtering device, universal wheels are arranged, so that a user can conveniently push the filtering box through a handrail to drive the filtering box to move under the rotation of the universal wheels, and sewage in more environments can be conveniently filtered; the sewage filter cartridge is driven by the motor II and the motor III to rotate, so that the contact area between the sewage and the sewage filter cartridge is increased, and the condition of continuous filtration at a single part is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a municipal wastewater filtration device. Background Technology

[0002] Chinese Patent Application No. 202322311680.6 discloses a municipal sewage filtration device. The sewage enters a filter box through an inlet pipe, and impurities in the sewage are filtered through a filter screen. The filtered sewage is then discharged through an outlet pipe. Through the cooperation of a drive motor, rotating shaft, transmission sprocket, and transmission chain, two rotating shafts and the drive shaft can rotate synchronously. The rotating shaft drives the drive chain, cross plate, T-shaped rod, and brush plate to rotate. At this time, the brush plate can sweep from the left side to the right side of the filter screen, allowing debris to enter the conveying pipe through the through-holes, thus achieving the purpose of cleaning the filter screen.

[0003] However, the device does not make full use of the filter screen, resulting in most of the sewage being filtered on the filter screen located at the inlet pipe, causing severe local clogging of the filter screen and insufficient cleaning. Furthermore, most existing rotary drum hydraulic screens are large in size and cannot be easily transported, resulting in significant limitations in their use and poor practicality. Utility Model Content

[0004] To address the inconvenience of moving and using the existing technology, this utility model provides a municipal sewage filtration device. It employs a filter box combined with casters to facilitate easy movement and use of the filter box. The specific technical solution is as follows: A municipal sewage filtration device includes: a filter box, a sewage filter cylinder rotatably connected inside the filter box, a water outlet groove located at the bottom of the filter box below the sewage filter cylinder, a drain pipe connected to the bottom of the filter box communicating with the water outlet groove, casters installed at the four corners of the bottom of the filter box, and a water inlet pipe fixedly connected to one outer wall of the filter box, one end of which extends into the sewage filter cylinder.

[0005] Preferably, each of the four corners of the bottom of the filter box is fixedly installed with a lifting seat, and the bottom of the lifting seat is rotatably connected with casters.

[0006] Preferably, a trough is fixedly installed between the inner walls of both sides of the filter box. The trough is located above the sewage filter cylinder. A sliding groove is formed at the bottom end of the trough along the length direction. A slider is slidably connected in the sliding groove. A nozzle is fixedly installed at the bottom end of the slider. A through hole is formed at the top end of the trough along the length direction. The through hole communicates with the sliding groove. A flexible hose is fixedly connected to the top end of the slider. The flexible hose communicates with the nozzle and is slidably connected in the through hole.

[0007] Preferably, a motor is fixedly installed on one outer wall of the filter box, a reciprocating screw is rotatably connected in the slide groove along the length direction, the slider is threadedly fitted on the outer wall of the reciprocating screw, one end of the reciprocating screw rotatably extends out of the filter box, and the reciprocating screw is connected to the motor.

[0008] Preferably, a backwash pump is fixedly installed on the outer wall of the filter box away from the first inlet pipe. The backwash pump is connected to an outlet pipe and an inlet pipe. The end of the outlet pipe away from the backwash pump is fixedly installed on the outer wall of the filter box. The end of the flexible hose away from the slider is connected to the outlet pipe. The end of the second inlet pipe away from the backwash pump extends into the outlet trough. A guide channel is fixedly installed on the inner wall of one side of the filter box. The guide channel is located inside the sewage filter cylinder. A drain pipe is provided on the outer wall of one side of the filter box. The drain pipe communicates with the inside of the guide channel.

[0009] Preferably, a second motor is fixedly installed on the outer wall of the filter box on the side away from the first inlet pipe. The output end of the second motor is fixedly connected to a rotating shaft. The end of the rotating shaft away from the second motor extends rotatably into the filter box. The sewage filter cylinder is fixedly connected to the rotating shaft. A collar and a gear ring are symmetrically fitted on the outer wall of the sewage filter cylinder. Two sets of roller assemblies and two sets of gear assemblies are symmetrically installed on the inner bottom of the filter box. The two sets of roller assemblies are arranged in the front-back direction, and the two sets of gear assemblies are arranged in the front-back direction. The two sets of roller assemblies roll and fit against the collar, and the two sets of gear assemblies mesh with the gear ring.

[0010] Preferably, a protective shell is fixedly installed on one outer wall of the filter box. Two connecting shafts are symmetrically rotatably connected inside the protective shell. Each connecting shaft corresponds to a gear assembly. One end of each connecting shaft extends rotatably into the filter box and engages with the gear assembly. A sprocket is fixedly fitted on the outer wall of the connecting shaft, and a toothed chain meshes between the two sprockets. A motor is fixedly installed on one outer wall of the protective shell. One end of a connecting shaft, away from the filter box, extends rotatably out of the protective shell, and the motor is connected to one of the connecting shafts.

[0011] In addition, the municipal sewage filtration device in the above-mentioned technical solution provided by this utility model may also have the following features: a cover is rotatably connected to the top of the filter box, and a lifting rod is fixedly installed at the front end of the cover; two handrails are symmetrically installed at the front end of the filter box.

[0012] In the above technical solution, a controller is fixedly installed at the front end of the filter box.

[0013] The municipal sewage filtration device of this utility model has the following advantages compared with the prior art:

[0014] 1. This municipal sewage filtration device is equipped with casters, which allow users to easily push the filter box with the handrail, moving the filter box by rotating the casters, so as to filter sewage from a wider range of environments.

[0015] 2. This municipal sewage filtration device uses motors 2 and 3 to drive the sewage filter cylinder to rotate, which increases the contact area between the sewage and the sewage filter cylinder, avoids continuous filtration in a single part, and improves the utilization rate of the sewage filter cylinder.

[0016] 3. This municipal sewage filtration device uses a backwash pump to backwash and clean the sewage filter cartridge with spray nozzles, promptly removing foreign objects from the filter cartridge. The foreign objects are then discharged into the sewage pipe through the guide channel.

[0017] 4. This municipal sewage filtration device uses a motor to drive a slider to move back and forth in a chute, allowing a single nozzle to thoroughly clean the sewage filter cylinder. Compared to the existing rotary drum hydraulic screen that uses multiple nozzles for continuous rinsing, this device reduces the number of nozzles used and avoids excessive nozzles continuously spraying water on areas that do not need rinsing, making it more practical. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of the municipal sewage filtration device provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the main sectional view of the filter box provided by this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A;

[0021] Figure 4 for Figure 2 Enlarged view of point B;

[0022] in, Figures 1 to 4The attached diagrams and component names are as follows: 1. Filter box, 2. Box cover, 3. Sewage filter cylinder, 4. Lifting seat, 5. Caster wheel, 6. Inlet pipe one, 7. Tank, 8. Slide rail, 9. Reciprocating screw, 10. Slider, 11. Nozzle, 12. Hose, 13. Through hole, 14. Motor one, 15. Outlet tank, 16. Backwash pump, 17. Outlet pipe, 18. Inlet pipe two, 19. Motor two, 20. Rotating shaft, 21. Guide channel body, 22. Sewage pipe, 23. Collar, 24. Roller assembly, 25. Gear ring, 26. Gear assembly, 27. Connecting shaft, 28. Protective shell, 29. Sprocket, 30. Gear chain, 31. Motor three, 32. Drain pipe, 33. Handrail, 34. Controller, 35. Lifting rod. Detailed Implementation

[0023] The following are specific implementation cases and appendices. Figures 1-4 The present invention will be further described, but the present invention is not limited to these embodiments. The present invention provides a technical solution: a municipal sewage filtration device, comprising: a filter box 1, a sewage filter cylinder 3 rotatably connected inside the filter box 1, the surface of the sewage filter cylinder 3 being a filter screen structure, a water outlet groove 15 being provided at the bottom of the filter box 1, the water outlet groove 15 being wider at the top and narrower at the bottom, the water outlet groove 15 being located below the sewage filter cylinder 3, a drain pipe 32 being connected to the bottom end of the filter box 1, the drain pipe 32 communicating with the water outlet groove 15, universal wheels 5 being installed at the four corners of the bottom end of the filter box 1, and an inlet pipe 6 being fixedly connected to one side of the outer wall of the filter box 1, one end of the inlet pipe 6 extending into the sewage filter cylinder 3.

[0024] As a preferred option, furthermore, lifting seats 4 are fixedly installed at the four corners of the bottom of the filter box 1. The bottom of the lifting seats 4 is rotatably connected to casters 5. By setting the lifting seats 4, the casters 5 are lower than the drain pipe 32, which facilitates the connection of the drain pipe 32.

[0025] As a preferred embodiment, a further embodiment includes a trough 7 fixedly installed between the inner walls of both sides of the filter box 1. The trough 7 is located above the sewage filter cylinder 3. A groove 8 is provided at the bottom of the trough 7 along its length. A slider 10 is slidably connected in the groove 8. Both the groove 8 and the slider 10 are rectangular structures. The slider 10 slides against the inner wall of the groove 8. A nozzle 11 is fixedly installed at the bottom of the slider 10. A through hole 13 is provided at the top of the trough 7 along its length. The through hole 13 communicates with the groove 8. A flexible hose 12 is fixedly connected to the top of the slider 10. The flexible hose 12 communicates with the nozzle 11 and is slidably connected in the through hole 13.

[0026] As a preferred option, a motor 14 is fixedly mounted on one outer wall of the filter box 1 via a motor frame. A reciprocating screw 9 is rotatably connected in the slide groove 8 along the length direction. A slider 10 is threaded onto the outer wall of the reciprocating screw 9. One end of the reciprocating screw 9 extends out of the filter box 1 and is connected to the motor 14.

[0027] As a preferred embodiment, further, a backwash pump 16 is fixedly installed on the outer wall of the filter box 1 on the side away from the inlet pipe 6 via a mounting bracket. The backwash pump 16 is connected to an outlet pipe 17 and an inlet pipe 18. The end of the outlet pipe 17 away from the backwash pump 16 is fixedly installed on the outer wall of the filter box 1. The end of the hose 12 away from the slider 10 is connected to the outlet pipe 17. The end of the inlet pipe 18 away from the backwash pump 16 extends into the water inlet / outlet trough 15. A guide channel 21 is fixedly installed on the inner wall of one side of the filter box 1. The guide channel 21 is located inside the sewage filter cylinder 3. The flushing surfaces of the trough 7, the sewage filter cylinder 3, and the guide channel 21 are located in the same vertical plane. A drain pipe 22 is provided on the outer wall of one side of the filter box 1. The drain pipe 22 communicates with the interior of the guide channel 21.

[0028] As a preferred embodiment, further, a second motor 19 is fixedly installed on the outer wall of the filter box 1 on the side away from the inlet pipe 6 via a motor frame. The output end of the second motor 19 is fixedly connected to a rotating shaft 20. The end of the rotating shaft 20 away from the second motor 19 extends into the filter box 1. The sewage filter cylinder 3 is fixedly connected to the rotating shaft 20. A collar 23 and a gear ring 25 are symmetrically fitted on the outer wall of the sewage filter cylinder 3. Two sets of roller assemblies 24 and two sets of gear assemblies 26 are symmetrically installed on the inner bottom of the filter box 1. The two sets of roller assemblies 24 are arranged in the front-back direction, and the two sets of gear assemblies 26 are arranged in the front-back direction. The two sets of roller assemblies 24 roll and fit against the collar 23, and the two sets of gear assemblies 26 mesh with the gear ring 25.

[0029] As a preferred embodiment, a protective shell 28 is further fixedly installed on one side of the outer wall of the filter box 1 by bolts. Two connecting shafts 27 are symmetrically rotatably connected inside the protective shell 28. The connecting shafts 27 correspond one-to-one with the gear assembly 26. One end of the connecting shaft 27 extends rotatably into the filter box 1. The connecting shaft 27 cooperates with the gear assembly 26. A sprocket 29 is fixedly fitted on the outer wall of the connecting shaft 27. A toothed chain 30 meshes between the two sprockets 29. A motor 31 is fixedly installed on one side of the outer wall of the protective shell 28 by a motor frame. The end of one connecting shaft 27 away from the filter box 1 extends rotatably out of the protective shell 28. The motor 31 is connected to one connecting shaft 27.

[0030] As a preferred embodiment, the top of the filter box 1 is rotatably connected to a cover 2, which is used to prevent water from spraying out. A lifting rod 35 is fixedly installed at the front end of the cover 2. Two handles 33 are symmetrically installed at the front end of the filter box 1. A controller 34 is fixedly installed at the front end of the filter box 1, and the controller 34 is electrically connected to the other electrical components.

[0031] The wastewater filter cartridge, casters, reciprocating screw, nozzle, hose, motor 1, backwash pump, motor 2, flow guide trough, motor 3, and controller in this case are existing technologies. The motor has the same structure and connection method as those in the cited documents. As long as the wastewater filter cartridge, casters, reciprocating screw, nozzle, hose, motor 1, backwash pump, motor 2, flow guide trough, motor 3, and controller meet the requirements of this case, they are all acceptable and not limited to a single model.

[0032] Working principle: All electrical components mentioned in this application are connected to an external power supply and control switch during use. After installation, first check the installation, fixation, and safety precautions of this utility model before use. During use, the user moves the filter box 1 to the construction site via the handle 33, then connects the inlet pipe 6, outlet pipe 17, and sewage pipe 22 to the corresponding pipes, and then starts the filtration device via the controller 34. Sewage flows into the sewage filter cylinder 3 through the inlet pipe 6. The motor 31 drives one connecting shaft 27 to rotate. One connecting shaft 27 drives another connecting shaft 27 to rotate via a sprocket 29 and a gear chain 30, causing the connecting shaft 27 to drive the gear assembly 26. The gear assembly 26 meshes with the gear ring 25, cooperating with the motor 219 to drive the rotating shaft 20 to rotate, thus filtration. The water filter cartridge 3 rotates, and sewage flows through it for filtration. The filtered water enters the outlet tank 15 and is then transported out through the drain pipe 32 for recycling. Some of the water in the outlet tank 15 enters the backwash pump 16 through the inlet pipe 18, and then is transported to the hose 12 through the outlet pipe 17. It then passes through the slider 10 and enters the nozzle 11, which washes and cleans the sewage filter cartridge 3 from top to bottom. The cleaned sludge and foreign objects fall into the guide trough 21 and are discharged through the guide trough 21 into the drain pipe 22. While the nozzle 11 is washing, the motor 14 drives the reciprocating screw 9 to rotate, causing the slider 10 to move back and forth in the slide groove 8. This allows the nozzle 11 to thoroughly wash the sewage filter cartridge 3, thus preventing foreign objects from clogging the sewage filter cartridge 3 and preventing sewage from being filtered.

[0033] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A municipal sewage filtration apparatus comprising: The utility model provides a filter box (1), its characterized in be that sewage filter drum (3) is rotatably connected in the filter box (1), the inner bottom of filter box (1) is provided with water outlet groove (15), water outlet groove (15) is located sewage filter drum (3) below, the bottom of filter box (1) is connected with drain pipe (32), drain pipe (32) is communicated with water outlet groove (15), the bottom of filter box (1) four corners are all installed with universal wheel (5), the outer wall of one side of filter box (1) is fixedly connected with water inlet pipe one (6), one end of water inlet pipe one (6) extends into sewage filter drum (3) inside.

2. The municipal sewage filtering device according to claim 1, characterized in that, The utility model provides a filter box (1), its characterized in be that sewage filter drum (3) is rotatably connected in the filter box (1), the inner bottom of filter box (1) is provided with water outlet groove (15), water outlet groove (15) is located sewage filter drum (3) below, the bottom of filter box (1) is connected with drain pipe (32), drain pipe (32) is communicated with water outlet groove (15), the bottom of filter box (1) four corners are all installed with universal wheel (5), the outer wall of one side of filter box (1) is fixedly connected with water inlet pipe one (6), one end of water inlet pipe one (6) extends into sewage filter drum (3) inside.

3. The municipal sewage filtering device of claim 1, wherein, The utility model provides a filter box (1), its characterized in be that sewage filter drum (3) is rotatably connected in the filter box (1), the inner bottom of filter box (1) is provided with water outlet groove (15), water outlet groove (15) is located sewage filter drum (3) below, the bottom of filter box (1) is connected with drain pipe (32), drain pipe (32) is communicated with water outlet groove (15), the bottom of filter box (1) four corners are all installed with universal wheel (5), the outer wall of one side of filter box (1) is fixedly connected with water inlet pipe one (6), one end of water inlet pipe one (6) extends into sewage filter drum (3) inside.

4. The municipal sewage filtering device of claim 3, wherein, The utility model provides a filter box (1), its characterized in be that sewage filter drum (3) is rotatably connected in the filter box (1), the inner bottom of filter box (1) is provided with water outlet groove (15), water outlet groove (15) is located sewage filter drum (3) below, the bottom of filter box (1) is connected with drain pipe (32), drain pipe (32) is communicated with water outlet groove (15), the bottom of filter box (1) four corners are all installed with universal wheel (5), the outer wall of one side of filter box (1) is fixedly connected with water inlet pipe one (6), one end of water inlet pipe one (6) extends into sewage filter drum (3) inside.

5. The municipal sewage filtering device of claim 3, wherein, The utility model provides a filter box (1), its characterized in be that sewage filter drum (3) is rotatably connected in the filter box (1), the inner bottom of filter box (1) is provided with water outlet groove (15), water outlet groove (15) is located sewage filter drum (3) below, the bottom of filter box (1) is connected with drain pipe (32), drain pipe (32) is communicated with water outlet groove (15), the bottom of filter box (1) four corners are all installed with universal wheel (5), the outer wall of one side of filter box (1) is fixedly connected with water inlet pipe one (6), one end of water inlet pipe one (6) extends into sewage filter drum (3) inside.

6. The municipal sewage filtering device of claim 1, wherein, The motor two (19) is fixedly installed on the outer wall of one side of the filter box (1) away from the water inlet pipe (6), the output end of the motor two (19) is fixedly connected with the rotating shaft (20), one end of the rotating shaft (20) away from the motor two (19) is rotatably extended into the filter box (1), and the sewage filter cylinder (3) is fixedly connected with the rotating shaft (20); the outer wall of the sewage filter cylinder (3) is symmetrically sleeved with the collar (23) and the gear ring (25), the inner bottom end of the filter box (1) is symmetrically provided with two groups of roller assemblies (24) and two groups of gear assemblies (26), the two groups of roller assemblies (24) are arranged along the front and rear directions, the two groups of gear assemblies (26) are arranged along the front and rear directions, the two groups of roller assemblies (24) are rollingly attached to the collar (23), and the two groups of gear assemblies (26) are engaged with the gear ring (25).

7. The municipal sewage filtering device of claim 6, wherein, The protective shell (28) is fixedly installed on the outer wall of one side of the filter box (1), two connecting shafts (27) are symmetrically and rotatably connected in the protective shell (28), the connecting shafts (27) correspond to the gear assemblies (26) in a one-to-one manner, one end of the connecting shaft (27) rotatably extends into the filter box (1), the connecting shaft (27) is matched with the gear assembly (26), the chain wheel (29) is fixedly sleeved on the outer wall of the connecting shaft (27), and the sprocket chain (30) is engaged between the two chain wheels (29); the motor three (31) is fixedly installed on the outer wall of one side of the protective shell (28), one end of the connecting shaft (27) rotatably extends out of the protective shell (28) away from the filter box (1), and the motor three (31) is connected with the connecting shaft (27).

8. The municipal sewage filtering device of claim 1, wherein, The box cover (2) is rotatably connected to the top end of the filter box (1), the pull rod (35) is fixedly installed at the front end of the box cover (2); the filter box (1) is symmetrically provided with two handrails (33) at the front end, and the controller (34) is fixedly installed at the front end of the filter box (1).

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