Filtering device for sewage treatment

Abstract

The utility model discloses a filtering device for sewage treatment, relates to the related field of sewage treatment, and aims to solve the problems that in the shutdown cleaning process in the prior art, the consumed time is long, sewage cannot be normally treated at the moment, the storage pressure of a previous treatment device is increased, and the working efficiency of a next treatment device is influenced. A horizontal partition plate is fixed in the filter box, an upper cavity is formed in the filter box along the upper end of the horizontal partition plate, a lower cavity is formed in the filter box along the lower end of the horizontal partition plate, a vertical partition plate is fixed in the middle of the lower end of the horizontal partition plate in the filter box, and the vertical partition plate is fixed to the inner wall of the filter box. An upper water inlet pipe is mounted at the upper end of the filter box, the lower end of the upper water inlet pipe extends into the upper cavity and is connected with a connecting tee joint, the other two channels of the connecting tee joint are respectively connected with two water inlet branch pipes, and the other ends of the water inlet branch pipes extend into the lower cavity and are connected with a water outlet disc.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a filtering device for sewage treatment. Background Art

[0002] Sewage usually refers to the polluted water from life and production. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants in sewage include pathogen pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants.

[0003] Sewage treatment is the process of purifying sewage to meet the water quality requirements for drainage into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering. Generally, large garbage is directly blocked by the grille, and only solid particles need to be filtered during the treatment. After filtering, the filter is added and filtered again.

[0004] Sewage treatment requires filtration first. The sewage to be filtered enters through the inlet, flows through the filter, and flows out through the outlet. Solid particles will remain on one side of the filter. In this continuous cycle, more and more solid particles are intercepted, and the filtering speed of the filter becomes slower and slower. The amount of sewage entering the inlet remains unchanged, and the interior is gradually blocked. Long-term use causes the water level in the filter device to gradually increase, and less and less water flows out of the outlet.

[0005] In order to reduce the impact of filter blockage on filtration efficiency, the machine is generally shut down for cleaning and maintenance regularly. However, the cleaning process takes a long time and the sewage cannot be treated normally. This will increase the storage pressure of the previous treatment device and affect the working efficiency of the next treatment device. Utility Model Content

[0006] The purpose of the utility model is to provide a filtering device for sewage treatment, so as to solve the problem proposed in the above-mentioned background technology that the shutdown cleaning process takes a long time, the sewage cannot be treated normally at this time, the storage pressure of the previous treatment device is increased, and the working efficiency of the next treatment device is affected.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering device for sewage treatment, comprising a filter box, a horizontal partition is fixed inside the filter box, an upper cavity is formed in the filter box along the upper end of the horizontal partition, and a lower cavity is formed in the filter box along the lower end of the horizontal partition, a vertical partition is fixed in the middle of the lower end of the horizontal partition in the filter box, the vertical partition is fixed to the inner wall of the filter box, an upper water inlet pipe is installed at the upper end of the filter box, the lower end of the upper water inlet pipe extends into the upper cavity and is connected to a connecting tee, the other two channels of the connecting tee are respectively connected to two water inlet manifolds, the other end of the water inlet manifold extends into the lower cavity and is connected to a water outlet tray, a control valve is installed on the water inlet manifold, a filter body is arranged on both sides of the vertical partition in the lower cavity, and the outer side of the filter body extends to the outside of the filter box through the side of the filter box.

[0008] Preferably, the filter body comprises an outer box body, a through slot is provided through the interior of the vertical partition, and the inner side of the outer box body extends into the through slot.

[0009] Preferably, fixed ends are fixed to the upper and lower ends of the inner side of the outer box body, and a limiting sliding rod is fixed between the two fixed ends.

[0010] Preferably, a first fixed seat is provided at the upper end of the inner side of the outer box body along the outside of the limiting slide rod, and a second fixed seat is provided at the lower end of the inner side of the outer box body along the outside of the limiting slide rod. The second fixed seat and the first fixed seat slide along the limiting slide rod, and a rotating rod is cross-arranged between the two first fixed seats and the two second fixed seats. The rotating rod is rotatably connected to the second fixed seat and the first fixed seat through an axis, and the two rotating rods are rotatably connected to each other through an axis.

[0011] Preferably, an upper filter is welded and fixed at the upper end of the inner part of the outer box body, and a lower filter is welded and fixed at the lower end of the inner part of the outer box body. An intermediate cavity is formed between the upper filter and the lower filter inside the outer box body, and a sewage trough is provided on the front end surface of the outer box body along the front end of the intermediate cavity, and the sewage trough is connected to the intermediate cavity.

[0012] Preferably, a lower drain pipe is installed at the lower end of the filter box, and the lower drain pipe is connected to the interior of the lower cavity.

[0013] Preferably, a fixed handle is fixed in the middle of the outer side of the outer box body by screws.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the control valves on the two water inlet branches are opened, and the sewage is discharged into the lower cavity through the upper water inlet pipe, the connecting tee, the water inlet branch and the water outlet tray, and filtered step by step through the upper filter screen and the lower filter screen. When cleaning is required, close the control valve of one of the water inlet branches, and pull out the filter body at its lower end for cleaning; after the cleaning of the single-side position is completed, push the filter body on that side inward, open the control valve of the water inlet branch on that side, and close the control valve of the water inlet branch on the other side, and pull out the filter body at its lower end for cleaning. During cleaning, only the filtering processing burden on one side is increased, but the entire filtering device can filter normally without stopping for processing; and when the filter hole is not completely blocked, there is no need to control the sewage intake, and the sewage output is also guaranteed, which solves the problem that the current shutdown cleaning process takes a long time, the sewage cannot be processed normally at this time, the storage pressure of the upper processing device will be increased, and the working efficiency of the lower processing device will be affected.

[0016] 2. In the utility model, when the filter body is pulled outward, as the filter body moves outward, the rotating rod gradually unfolds, and the first fixed seat and the second fixed seat slide outside the limit slide rod. Due to the length limit of the rotating rod, the maximum distance between the two filter bodies also depends on the length of the rotating rod, thereby preventing the two filter bodies from being pulled outward to the maximum at the same time, and avoiding the situation where the structure is dislodged and difficult to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a sewage treatment filtering device of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a sewage treatment filtering device of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of location A of a sewage treatment filter device of the utility model;

[0020] Figure 4 The utility model is a three-dimensional structural schematic diagram of a filter body of a filter device for sewage treatment.

[0021] In the figure: 1. filter box; 2. horizontal partition; 3. upper cavity; 4. lower cavity; 5. vertical partition; 6. lower drain pipe; 7. upper water inlet pipe; 8. connecting tee; 9. water inlet branch; 10. water outlet tray; 11. control valve; 12. filter body; 13. outer box; 14. upper filter screen; 15. lower filter screen; 16. middle cavity; 17. drain trough; 18. fixed handle; 19. through slot; 20. fixed end; 21. limit slide rod; 22. first fixed seat; 23. second fixed seat; 24. rotating rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a filtering device for sewage treatment, including a filter box 1, a horizontal partition 2 is fixed inside the filter box 1, an upper cavity 3 is formed along the upper end of the horizontal partition 2 in the filter box 1, a lower cavity 4 is formed along the lower end of the horizontal partition 2 in the filter box 1, a lower drain pipe 6 is installed at the lower end of the filter box 1, and the lower drain pipe 6 is connected to the inside of the lower cavity 4. A vertical partition 5 is fixed in the middle of the lower end of the horizontal partition 2 in the filter box 1, and the vertical partition 5 is fixed to the inner wall of the filter box 1. An upper water inlet pipe 7 is installed at the upper end of the filter box 1. The lower end of the upper water inlet pipe 7 extends to the upper cavity 3 and is connected to a connecting tee 8. The other two channels of the connecting tee 8 are respectively connected to two water inlet manifolds 9. The other end of the water inlet manifold 9 extends to the inside of the lower cavity 4 and is connected to a water outlet tray 10. A control valve 11 is installed on the water inlet manifold 9. Filter bodies 12 are arranged on both sides of the vertical partition 5 in the lower cavity 4, and the outer side of the filter body 12 extends to the outside of the filter box 1 through the side of the filter box 1.

[0024] Under normal circumstances, the control valves 11 on the two water inlet manifolds 9 are opened, and the sewage is discharged into the lower chamber 4 through the upper water inlet pipe 7, the connecting tee 8, the water inlet manifold 9 and the water outlet tray 10. After being filtered step by step through the upper filter screen 14 and the lower filter screen 15, it is collected at the lower end of the lower chamber 4 and then discharged into the next treatment equipment through the lower drain pipe 6.

[0025] Furthermore, the filter body 12 includes an outer box body 13, a fixed handle 18 is fixed in the middle of the outer part of the outer box body 13 by screws, an upper filter screen 14 is welded and fixed at the upper end of the inner part of the outer box body 13, and a lower filter screen 15 is welded and fixed at the lower end of the inner part of the outer box body 13. The filter holes of the upper filter screen 14 and the lower filter screen 15 have different sizes, thereby realizing step-by-step filtration; an intermediate cavity 16 is formed between the upper filter screen 14 and the lower filter screen 15 inside the outer box body 13, and a sewage trough 17 is opened along the front end of the intermediate cavity 16 on the front end surface of the outer box body 13, and the sewage trough 17 is connected to the intermediate cavity 16. A through slot 19 is provided inside the vertical partition 5, and the inner side of the outer box body 13 extends into the through slot 19; fixed ends 20 are fixed at the upper and lower ends of the inner side of the outer box body 13, and a limiting slide bar 21 is fixed between the two fixed ends 20; a first fixed seat 22 is provided at the upper end of the inner side of the outer box body 13 along the outside of the limiting slide bar 21, and a second fixed seat 23 is provided at the lower end of the inner side of the outer box body 13 along the outside of the limiting slide bar 21; the second fixed seat 23 and the first fixed seat 22 slide along the limiting slide bar 21 to play a normal limiting function; a rotating rod 24 is cross-arranged between the two first fixed seats 22 and the two second fixed seats 23; the length of the rotating rod 24 is less than the length of the outer box body 13, thereby limiting the distance the outer box body 13 is pulled out; the rotating rod 24 is rotatably connected to the second fixed seat 23 and the first fixed seat 22 by an axis, and the two rotating rods 24 are rotatably connected by an axis.

[0026] In addition, cushion layers are provided at the positions where the outer part of the outer box body 13 contacts the filter box 1 and the vertical partition 5 to prevent water leakage.

[0027] When the filtering device needs to be cleaned, the control valve 11 of one of the water inlet manifolds 9 is closed, and the filter body 12 at its lower end is pulled outward. As the filter body 12 moves outward, the rotating rod 24 is gradually unfolded, and the first fixed seat 22 and the second fixed seat 23 slide outside the limit slide bar 21; until most of the filter body 12 leaks out, the solid particles on the upper end of the upper filter screen 14 are cleaned from the upper end, and the solid particles on the upper end of the lower filter screen 15 are cleaned from the sewage tank 17. After the cleaning of the single-side position is completed, the filter body 12 is pushed inward, the control valve 11 of the water inlet manifold 9 on this side is opened, and the control valve 11 of the water inlet manifold 9 on the other side is closed, and the filter body 12 at its lower end is pulled out for cleaning. After the cleaning is completed, the control valve 11 of the water inlet manifold 9 on this side is pushed inward and opened.

[0028] The two control valves 11 are opened normally, and the two filter bodies 12 filter sewage normally.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A filtration device for sewage treatment, comprising a filter box (1), characterized in that: A horizontal partition (2) is fixed inside the filter box (1); an upper chamber (3) is formed inside the filter box (1) along the upper end of the horizontal partition (2); a lower chamber (4) is formed inside the filter box (1) along the lower end of the horizontal partition (2); a vertical partition (5) is fixed in the middle of the lower end of the horizontal partition (2) inside the filter box (1); the vertical partition (5) is fixed to the inner wall of the filter box (1); an upper water inlet pipe (7) is installed at the upper end of the filter box (1); the lower end of the upper water inlet pipe (7) extends A connecting tee (8) is connected to the upper chamber (3), the other two channels of the connecting tee (8) are respectively connected to two water inlet manifolds (9), the other end of the water inlet manifold (9) extends to the interior of the lower chamber (4) and is connected to a water outlet tray (10), a control valve (11) is installed on the water inlet manifold (9), and a filter body (12) is arranged along both sides of the vertical partition (5) in the lower chamber (4), and the outer side of the filter body (12) passes through the side of the filter box (1) and extends to the outside of the filter box (1).

2. A filter device for sewage treatment according to claim 1, characterized in that: The filter body (12) comprises an outer box body (13), a through slot (19) is provided through the interior of the vertical partition (5), and the inner side of the outer box body (13) extends into the through slot (19).

3. A filter device for sewage treatment according to claim 2, characterized in that: Fixed ends (20) are fixed to the upper and lower ends of the inner side of the outer box body (13), and a limit sliding rod (21) is fixed between the two fixed ends (20).

4. A filter device for sewage treatment according to claim 3, characterized in that: A first fixed seat (22) is arranged at the upper end of the inner side of the outer box body (13) along the outside of the limiting slide bar (21), and a second fixed seat (23) is arranged at the lower end of the inner side of the outer box body (13) along the outside of the limiting slide bar (21). The second fixed seat (23) and the first fixed seat (22) slide along the limiting slide bar (21), and a rotating rod (24) is arranged crosswise between the two first fixed seats (22) and the two second fixed seats (23). The rotating rod (24) is rotatably connected to the second fixed seat (23) and the first fixed seat (22) through an axis, and the two rotating rods (24) are rotatably connected to each other through an axis.

5. A filter device for sewage treatment according to claim 2, characterized in that: An upper filter screen (14) is welded and fixed to the upper end of the inner part of the outer box body (13), and a lower filter screen (15) is welded and fixed to the lower end of the inner part of the outer box body (13). An intermediate cavity (16) is formed between the upper filter screen (14) and the lower filter screen (15) inside the outer box body (13). A sewage discharge groove (17) is formed on the front end surface of the outer box body (13) along the front end of the intermediate cavity (16), and the sewage discharge groove (17) is communicated with the intermediate cavity (16).

6. A filter device for sewage treatment according to claim 1, characterized in that: A lower drainage pipe (6) is installed at the lower end of the filter box (1), and the lower drainage pipe (6) is connected to the interior of the lower chamber (4).

7. A filter device for sewage treatment according to claim 2, characterized in that: A fixed handle (18) is fixed in the middle of the exterior of the outer box body (13) by means of screws.

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