Filtering device of sewage treater

Abstract

The filtering device comprises a box body, a filtering groove, a driving motor, a cleaning brush and an electric push rod, the filtering groove is formed in the left side of the interior of the box body, a precipitation groove is formed in the right side of the filtering groove, a collecting groove is formed in the right side of the precipitation groove, and a first partition plate is fixedly mounted on the inner side wall of the box body between the filtering groove and the precipitation groove; a second partition plate is fixedly mounted on the inner side wall of the box body between the precipitation tank and the collection tank, a first filter screen is vertically and movably mounted on the inner side of the collection tank, a second filter screen is arranged in the center of the side wall of the first partition plate, two limiting plates are fixedly mounted above the side wall of the precipitation tank, and a lead screw is fixedly mounted between the limiting plates; the surface of the lead screw is in threaded connection with a threaded block; according to the sewage treatment device, sewage is stirred and precipitated by arranging a cleaning brush and a flocculating agent, so that the sewage is filtered more thoroughly.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to a filtering device of a sewage treatment device. Background Art

[0002] During the sewage treatment process, filtration can further remove biological flocs and colloidal substances after secondary treatment of wastewater, significantly reduce the suspended matter content and turbidity of the effluent, make the effluent clearer and more transparent, and also have a high removal rate for pollutants such as heavy metals, bacteria, and viruses. Existing filtration methods usually use a single-layer filter mesh for direct filtration, which not only cannot remove floating objects in sewage, but also cannot remove some dissolved impurities.

[0003] Application No. 202321724825 discloses a filtering device for a sewage treatment device, including a housing, a filter box, a water pump, a partition and a pumping mechanism, etc. The water pump is started, and then the suction pipe is placed in the sewage to be filtered, and then the outlet pipe is placed at the top of the first filter plate, so that the sewage can be poured into the filter box instead of manpower, and the first filter plate can filter the sewage for the first time, and the filtered sewage will flow to the inner bottom of the housing through the second filter plate, thereby achieving the purpose of improving the sewage filtration efficiency. At the same time, the first filter plate and the second filter plate can be disassembled through the first chute and the second chute, so as to facilitate the later cleaning of the two. The sewage after the secondary filtration will flow into the housing, and the partition can separate the sewage. At this time, the mixture in the sewage is mostly a smaller mixture, and the first rectangular opening is located at the center of the partition. When the height of the sewage is higher than the first rectangular opening, it can flow to the other side of the partition through the third filter plate. During the time of the sewage accumulation height, the mixture will settle at the inner bottom of the housing, thereby avoiding more mixtures and sewage from flowing to the other side of the partition together, thereby effectively improving the quality of sewage filtration.

[0004] However, in use, there are the following defects:

[0005] Although the sewage reaches the outer shell for sedimentation after being filtered through two layers of filter plates, thus preventing more mixture from flowing out of the partition, since filtering water is a continuous process, new sewage will be continuously added to the sewage filtered in the partition and the outer shell, resulting in the inability to stand still, and thus the mixture cannot be allowed to stand still, which affects the sewage treatment quality of the device. Utility Model Content

[0006] The purpose of the present application is to provide a filtering device for a sewage treatment device, which solves the problem raised in the background technology that although the sewage reaches the outer casing for sedimentation after being filtered through two layers of filter plates, thereby preventing a large amount of mixture from flowing out of the partition, since filtering water is a continuous process, new sewage will be continuously added to the sewage filtered in the partition and the outer casing, resulting in the inability to stand still, thereby making it impossible to stand still for the mixture, and how this affects the sewage treatment quality of the device.

[0007] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a filtering device for a sewage treatment device, comprising a casing, a filter tank, a driving motor, a cleaning brush and an electric push rod, a filter tank being provided on the left side of the interior of the casing, a sedimentation tank being provided on the right side of the filter tank, a collecting tank being provided on the right side of the sedimentation tank, and a No. 1 partition being fixedly installed on the inner side wall of the casing between the filter tank and the sedimentation tank, a No. 2 partition being fixedly installed on the inner side wall of the casing between the sedimentation tank and the collecting tank, a No. 1 filter screen being vertically movably installed on the inner side of the collecting tank, a No. 2 filter screen being provided in the center of the side wall of the No. 1 partition screen, two limit plates being fixedly installed on the upper side wall of the sedimentation tank, a screw rod being fixedly installed between the limit plates, and a threaded block being threadedly connected on the surface of the screw rod.

[0008] In this technical solution, the sewage is poured into the filter tank, and the sewage completes the first filtration after passing through the No. 1 filter screen and the No. 2 filter screen on the side wall of the No. 1 partition, and then enters the sedimentation tank. At this time, there are still dissolved impurities and some mixtures in the sewage. The sewage can be precipitated through the screw rod, threaded block, cleaning brush and flocculant tank. Flocculant is added to the flocculant tank, and then the flocculant will flow into the sedimentation tank along the filling pipe. At this time, the drive motor is powered and started, and the drive motor drives the screw rod to rotate, so that the threaded block drives the cleaning brush below to move horizontally. The cleaning brush stirs the sewage during the movement, so that the impurity mixture gradually settles down, making the sewage purer and improving the filtration efficiency of the device. When the sewage leaves the sedimentation tank and enters the collection tank After that, these precipitated impurities will be intercepted by the No. 3 filter and remain in the sedimentation tank, and will be swept from the discharge port to the discharge tank driven by the cleaning brush, making it easier to clean. At the same time, the sewage can be controlled to pass through the No. 2 partition through the electric push rod, fixed block, baffle and chute. The baffle slides horizontally in the chute and closes the No. 3 filter. In this way, the sewage can be prevented from flowing into the collection tank when the cleaning brush and flocculant are precipitating the sewage. After the sedimentation is completed, the electric push rod is started to shorten, driving the baffle to slide to the right to expose the No. 3 filter. The sewage can enter the collection tank through the No. 3 filter. After the sewage in the sedimentation tank has flowed out, the baffle will re-close the No. 3 filter, which is convenient for the next round of sewage precipitation and improves the filtration efficiency and practicality of the device.

[0009] As an optional solution of the technical solution of the present application, discharge outlets are provided on both sides of the sedimentation tank, and a discharge trough is fixedly installed on the side wall of the box body outside the discharge outlet.

[0010] As an optional solution of the technical solution of the present application, a No. 3 filter is opened in the center of the side wall of the No. 2 partition, and a slide groove is opened on the partition surface on the upper and lower sides of the No. 3 filter, and a baffle is slidably connected to the surface of the slide groove.

[0011] As an optional solution of the technical solution of the present application, a fixing block is fixedly welded to the upper right corner of the side wall of the baffle, the side wall of the fixing block is fixedly connected to one end of the electric push rod, and the other end of the electric push rod is fixedly connected to the inner wall of the box.

[0012] As an optional solution of the technical solution of the present application, a flocculant tank is movably installed on the top of the second partition, and the side wall of the flocculant tank is fixedly connected and communicated with a filling pipe.

[0013] As an optional solution of the technical solution of the present application, the bottom of the threaded block is fixedly welded to the connecting rod, and a cleaning brush is fixedly installed on the bottom of the connecting rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present application can precipitate sewage through a screw rod, a threaded block, a cleaning brush and a flocculant tank. Flocculant is added to the flocculant tank, and then the flocculant flows into the sedimentation tank along the filling pipe. At this time, the drive motor is powered and started, and the drive motor drives the screw rod to rotate, so that the threaded block drives the cleaning brush below to move horizontally. The cleaning brush stirs the sewage during the movement, so that the impurity mixture gradually settles down, thereby making the sewage purer and improving the filtration efficiency of the device.

[0016] 2. This application can facilitate the cleaning of sediment through the discharge port and discharge trough. After the sewage leaves the sedimentation tank and enters the collection tank, the precipitated impurities will be intercepted by the No. 3 filter and remain in the sedimentation tank, and will be swept from the discharge port to the discharge trough by the cleaning brush, making it easier to clean.

[0017] 3. The present application can control the sewage to pass through the No. 2 partition through the electric push rod, fixed block, baffle and chute. The baffle slides horizontally in the chute and closes the No. 3 filter. In this way, the sewage can be prevented from flowing into the collection tank when the cleaning brush and flocculant are precipitating the sewage. After the sedimentation is completed, the electric push rod is started to shorten, driving the baffle to slide to the right to expose the No. 3 filter. The sewage can enter the collection tank through the No. 3 filter. After the sewage in the sedimentation tank flows out, the baffle re-closes the No. 3 filter, thereby facilitating the next round of sewage sedimentation and improving the filtration efficiency and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 An overall view of a filtering device of a sewage treatment device of the present application;

[0020] Figure 2 This is a schematic cross-sectional structure diagram of a filtering device of a sewage treatment device of the present application;

[0021] Figure 3 A schematic cross-sectional view of a sedimentation tank of a filtering device of a sewage treatment device according to the present application.

[0022] In the figure: 1. Box body; 2. Filter tank; 3. Sedimentation tank; 4. Collecting tank; 5. Filter screen No. 1; 6. Filter screen No. 2; 7. Partition plate No. 1; 8. Partition plate No. 2; 9. Filter screen No. 3; 10. Driving motor; 11. Limiting plate; 12. Screw rod; 13. Threaded block; 14. Connecting rod; 15. Cleaning brush; 16. Discharge outlet; 17. Discharge tank; 18. Electric push rod; 19. Fixed block; 20. Baffle; 21. Slide; 22. Flocculant tank; 23. Filling pipe. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0024] like Figure 1 and Figure 2 As shown, a filtering device of a sewage treatment device includes a box body 1, a filter tank 2, a driving motor 10, a cleaning brush 15 and an electric push rod 18. The filter tank 2 is opened on the left side of the box body 1, the sedimentation tank 3 is opened on the right side of the filter tank 2, and the collection tank 4 is opened on the right side of the sedimentation tank 3. A first partition plate 7 is fixedly installed on the inner wall of the box body 1 between the filter tank 2 and the sedimentation tank 3, and a second partition plate 8 is fixedly installed on the inner wall of the box body 1 between the sedimentation tank 3 and the collecting tank 4.

[0025] like Figure 1 As shown, a No. 1 filter screen 5 is vertically movably installed on the inner side of the collecting tank 4, a No. 2 filter screen 6 is opened in the center of the side wall of the No. 1 partition 7, and a No. 3 filter screen 9 is opened in the center of the side wall of the No. 2 partition 8. The No. 1 filter screen 5 and the hot filter screen 6 can perform the initial filtration of the sewage and are convenient to disassemble for cleaning.

[0026] like Figure 2As shown, the partition surfaces on the upper and lower sides of the No. 3 filter 9 are provided with slide grooves 21, and the surface of the slide grooves 21 is slidably connected with a baffle 20, and a fixing block 19 is fixedly welded to the upper right corner of the side wall of the baffle 20, and the side wall of the fixing block 19 is fixedly connected to one end of the electric push rod 18, and the other end of the electric push rod 18 is fixedly connected to the inner wall of the box body 1, and the baffle 20 can be fitted with the No. 2 partition 8, thereby closing the No. 3 filter 9.

[0027] like Figure 2 As shown, a flocculant tank 22 is movably installed at the top of the second partition 8, and the side wall of the flocculant tank 22 is fixedly connected and communicated with a filling pipe 23. A valve is installed on the side wall of the filling pipe 23, and the amount of flocculant can be selected according to the amount of sewage.

[0028] like Figure 2 and Figure 3 As shown, two limit plates 11 are fixedly installed on the upper side wall of the sedimentation tank 3, a screw rod 12 is fixedly installed between the limit plates 11, a threaded block 13 is threadedly connected to the surface of the screw rod 12, the bottom of the threaded block 13 is fixedly welded to a connecting rod 14, and a cleaning brush 15 is fixedly installed on the bottom of the connecting rod 14, which can not only stir the sewage to accelerate sedimentation, but also sweep the sediment to both sides.

[0029] like Figure 3 As shown, a discharge port 16 is provided on both sides of the sedimentation tank 3 , and a discharge trough 17 is fixedly installed on the side wall of the box body 1 outside the discharge port 16 . The discharge trough 17 is slightly inclined upward to prevent sewage from remaining in the discharge trough 17 .

[0030] In actual use, the sewage is poured into the filter tank 2. After passing through the No. 1 filter screen 5 and the No. 2 filter screen 6 on the side wall of the No. 1 partition 7, the sewage completes the first filtration, and then enters the sedimentation tank 3. At this time, there are still dissolved impurities and some mixtures in the sewage. The sewage can be precipitated through the screw rod 12, the threaded block 13, the cleaning brush 15 and the flocculant tank 22. Flocculant is added to the flocculant tank 22, and then the flocculant will flow into the sedimentation tank 3 along the filling pipe 23. At this time, the drive motor 10 is powered and started. The drive motor 10 drives the screw rod 12 to rotate, so that the threaded block 13 drives the cleaning brush 15 below to move horizontally. The cleaning brush 15 stirs the sewage during the movement, so that the impurity mixture gradually settles down, thereby making the sewage purer and improving the filtering efficiency of the device. After the sewage leaves the sedimentation tank 3 and enters the collection tank 4, These precipitated impurities will be intercepted by the No. 3 filter 9 and retained in the sedimentation tank 3, and will be swept from the discharge port 16 to the discharge tank 17 driven by the cleaning brush 15, so as to make cleaning more convenient. At the same time, the sewage can be controlled to pass through the No. 2 partition 8 through the electric push rod 18, the fixed block 19, the baffle 20 and the slide 21. The baffle 20 slides horizontally in the slide 21 and closes the No. 3 filter 9. In this way, the sewage can be prevented from flowing into the collection tank 4 when the cleaning brush 15 and the flocculant are precipitating the sewage. After the precipitation is completed, the electric push rod 18 is started to shorten, driving the baffle 20 to slide to the right, so that the No. 3 filter 9 is exposed, and the sewage can enter the collection tank 4 through the No. 3 filter 9. After the sewage in the sedimentation tank has flowed out, the baffle 20 will re-close the No. 3 filter 9, so as to facilitate the next round of sewage precipitation and improve the filtration efficiency and practicality of the device.

Claims

1. A filtering device for a sewage treatment device, comprising a housing (1), a filtering tank (2), a driving motor (10), a cleaning brush (15) and an electric push rod (18), characterized in that: A filter tank (2) is provided on the left side of the interior of the box body (1), a sedimentation tank (3) is provided on the right side of the filter tank (2), a collection tank (4) is provided on the right side of the sedimentation tank (3), and a first partition plate (7) is fixedly installed on the inner side wall of the box body (1) between the filter tank (2) and the sedimentation tank (3), a second partition plate (8) is fixedly installed on the inner side wall of the box body (1) between the sedimentation tank (3) and the collection tank (4), a first filter screen (5) is vertically movably installed on the inner side of the collection tank (4), a second filter screen (6) is provided in the center of the side wall of the first partition plate (7), two limit plates (11) are fixedly installed above the side wall of the sedimentation tank (3), a screw rod (12) is fixedly installed between the limit plates (11), and a threaded block (13) is threadedly connected to the surface of the screw rod (12).

2. A filter device for a sewage treatment device according to claim 1, characterized in that: Both sides of the sedimentation tank (3) are provided with discharge ports (16), and a discharge trough (17) is fixedly mounted on the side wall of the box body (1) outside the discharge port (16).

3. A filter device for a sewage treatment device according to claim 1, characterized in that: A No. 3 filter screen (9) is provided in the center of the side wall of the No. 2 partition plate (8), and sliding grooves (21) are provided on the partition plate surfaces at the upper and lower sides of the No. 3 filter screen (9), and a baffle plate (20) is slidably connected to the surface of the sliding groove (21).

4. A filter device for a sewage treatment device according to claim 3, characterized in that: A fixing block (19) is fixedly welded to the upper right corner of the side wall of the baffle (20), the side wall of the fixing block (19) is fixedly connected to one end of the electric push rod (18), and the other end of the electric push rod (18) is fixedly connected to the inner wall of the box body (1).

5. The filtering device of a sewage treatment device according to claim 1, characterized in that: A flocculant tank (22) is movably mounted on the top of the second partition plate (8), and a filling pipe (23) is fixedly connected to the side wall of the flocculant tank (22) and communicated with the side wall.

6. A filter device for a sewage treatment device according to claim 1, characterized in that: The bottom of the threaded block (13) is fixedly welded to the connecting rod (14), and a cleaning brush (15) is fixedly installed on the bottom of the connecting rod (14).

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