Filtering device for sewage treatment

Abstract

The utility model relates to a sewage treatment filtering device which comprises a filtering box, an upper filtering net and a lower filtering net are arranged in the filtering box, two rotating pipes are rotationally arranged in the filtering box, the rotating pipes penetrate through the upper filtering net and the lower filtering net and are rotationally connected, and a plurality of sewage draining outlets are formed in the outer walls, located above the upper filtering net and the lower filtering net, of the rotating pipes in a penetrating mode. According to the technical scheme, the motor drives the rotating pipe to rotate, the crushing knife crushes impurities, the impurities which are not crushed are left on the upper filter screen, the impurities which are not crushed are left on the lower filter screen, the upper filter screen and the lower filter screen are arranged on the upper filter screen, the upper filter screen and the lower filter screen are arranged on the rotating pipe, and therefore the impurities which are not crushed can be separated from the upper filter screen, and the impurities which are not crushed can be separated from the lower filter screen. The rotating pipe rotates so that the shifting piece rotates, impurities which are not crushed are driven to be cut by the crushing knife in cooperation with water flow, the crushed impurities which cannot pass through the upper filter screen are left on the upper filter screen, if too many impurities are left, the water inlet pipe is closed, the rotating pipe rotates to drive the shifting piece to rotate, and the impurities enter the rotating pipe through the drain outlet and are discharged.

Description

Technical Field

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

[0002] Wastewater treatment refers to the process of treating various wastewater discharged from cities, industries, and rural areas to remove pollutants and make it meet environmental protection standards so that it can be safely discharged or reused. The purpose of wastewater treatment is to protect water resources, maintain ecological balance, reduce pollution to the environment, and ensure human health and sustainable development.

[0003] In the process of sewage treatment, impurities are mostly treated by filtration in the early stage. Filtration in sewage treatment is one of the key steps, which is used to remove solid particles, suspended matter and other impurities in sewage. During filtration, the impurities filtered out will cause the filter to be clogged, affecting the filtration effect. Although some existing devices can crush the impurities, the crushed impurities still remain in the device and are difficult to discharge. Therefore, in order to solve the above problems, the present application provides a filtration device for sewage treatment.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that impurities may clog the filter screen and the crushed impurities are difficult to discharge, the present application provides a filtering device for sewage treatment.

[0006] The present application provides a filtration device for sewage treatment, including a filter box, wherein an upper filter screen and a lower filter screen are fixedly arranged inside the filter box in sequence from top to bottom, and two rotating tubes are rotatably arranged inside the filter box, the rotating tubes pass through the upper filter screen and the lower filter screen and are rotatably connected to the two, the outer walls of the rotating tubes located above the upper filter screen and the lower filter screen are penetrated by a plurality of evenly distributed sewage outlets, the outer walls of the rotating tubes are fixedly provided with a plurality of evenly distributed toggle plates cooperating with the sewage outlets, the lower ends of the toggle plates are respectively arranged in contact with the upper filter screen wall and the lower filter screen wall, and the rotating tubes are provided with solenoid valves below the upper filter screen and the lower filter screen.

[0007] Preferably, the mesh of the upper filter is larger than the mesh of the lower filter, and the lower edge of the sewage outlet is arranged to fit the upper wall of the upper filter and the lower wall of the lower filter respectively.

[0008] Preferably, a partition is fixedly provided inside the filter box above the upper filter screen, and a plurality of evenly distributed crushing knives are fixedly provided on the outer wall of the rotating tube located between the partition and the upper filter screen.

[0009] Preferably, the upper ends of the rotating tubes are all passed through the partitions and are rotatably connected thereto, and the upper ends of the rotating tubes are all coaxially fixedly connected with slave gears.

[0010] Preferably, a vertical rod is provided through and rotatably connected to the upper wall of the filter box, and a main gear is coaxially fixedly connected to the lower end of the vertical rod. The main gear is located between the two slave gears and meshes with both of them.

[0011] Preferably, a water inlet pipe is provided through and fixedly connected to the upper wall of the filter box, the lower end of the water inlet pipe is provided through and fixedly connected to the partition, the water inlet pipe is communicated with the space below the partition, and a drain pipe is provided through and fixedly connected to the side wall of the filter box, and the drain pipe is communicated with the space below the lower filter screen.

[0012] Preferably, a motor for driving the vertical rod to rotate is fixedly provided on the upper wall of the filter box.

[0013] Preferably, the lower ends of the rotating tubes are all disposed through the lower wall of the filter box and are rotatably connected thereto, and the lower ends of the rotating tubes are communicated with the external space for the discharge of impurities.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By starting the motor to drive the two rotating tubes to rotate, the crushing knife crushes the impurities in the sewage discharged into the filter box, and some of the impurities that have not been crushed remain on the upper filter screen. The rotating tube rotates to rotate the paddle plate, and the water flow drives the impurities that have not been crushed to move in the filter box and are cut by the crushing knife. The crushed impurities that cannot pass through the upper filter screen remain on the upper filter screen. If there are too many impurities left, close the water inlet pipe, and the rotating tube rotates to drive the paddle plate to rotate. The impurities enter the rotating tube through the sewage outlet and are discharged from the bottom. The filtration process of the lower filter screen is the same as the first filter screen. Compared with the traditional device, the impurities that have not been crushed are crushed again, which makes the crushing more complete and can quickly discharge impurities, thereby improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application;

[0017] Figure 2 It is a schematic diagram of the internal structure from a first viewing angle in the first embodiment of the present application;

[0018] Figure 3 is a schematic diagram of the overall structure of the second viewing angle in the first embodiment of the present application;

[0019] Figure 4 It is an enlarged schematic diagram of the structure at location A in Example 1 of the present application.

[0020] Explanation of the reference numerals: 1. filter box; 2. drain pipe; 3. water inlet pipe; 4. motor; 5. partition; 6. upper filter screen; 7. lower filter screen; 8. rotating tube; 9. crushing knife; 10. toggle plate; 11. sewage outlet; 12. solenoid valve; 13. main gear; 14. slave gear; 15. vertical rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] Embodiment 1

[0023] Reference Figure 1-4 A filtering device for sewage treatment includes a filter box 1, in which an upper filter screen 6 and a lower filter screen 7 are fixedly arranged from top to bottom in sequence, and two rotating tubes 8 are rotatably arranged inside the filter box 1. The lower ends of the rotating tubes 8 are both arranged through the lower wall of the filter box 1 and are rotatably connected thereto, and the lower ends of the rotating tubes 8 are connected to the external space for the discharge of impurities.

[0024] The rotating tube 8 is set through the upper filter 6 and the lower filter 7 and is rotatably connected to both. The outer wall of the rotating tube 8 located above the upper filter 6 and the lower filter 7 is provided with a number of evenly distributed sewage outlets 11. The outer wall of the rotating tube 8 is fixedly provided with a number of evenly distributed toggle pieces 10 that cooperate with the sewage outlets 11. The toggle pieces 10 can be fan-like blades. The lower ends of the toggle pieces 10 are respectively attached to the upper wall of the upper filter 6 and the upper wall of the lower filter 7. The rotating tube 8 is located below the upper filter 6 and the lower filter 7 and is provided with a solenoid valve 12. The mesh of the upper filter 6 is larger than the mesh of the lower filter 7, which is convenient for graded filtration of sewage. The lower edges of the sewage outlet 11 are respectively attached to the upper wall of the upper filter 6 and the upper wall of the lower filter 7, so that impurities can smoothly enter the rotating tube 8 through the sewage outlet 11.

[0025] A partition plate 5 is fixedly provided inside the filter box 1 above the upper filter screen 6, and a plurality of evenly distributed crushing knives 9 are fixedly provided on the outer wall of the rotating tube 8 between the partition plate 5 and the upper filter screen 6 for crushing impurities.

[0026] The upper ends of the rotating tubes 8 are all set through the partition plate 5 and are rotatably connected thereto, and the upper ends of the rotating tubes 8 are all coaxially fixedly connected with the slave gears 14. A vertical rod 15 is set through the upper wall of the filter box 1 and is rotatably connected thereto, and a motor 4 for driving the vertical rod 15 to rotate is fixedly set on the upper wall of the filter box 1. The lower end of the vertical rod 15 is coaxially fixedly connected with the main gear 13, which is located between the two slave gears 14 and meshes with both.

[0027] A water inlet pipe 3 is arranged through the upper wall of the filter box 1 and is fixedly connected. The lower end of the water inlet pipe 3 is arranged through the partition 5 and is fixedly connected thereto. The water inlet pipe 3 is communicated with the space below the partition 5. A drain pipe 2 is arranged through the side wall of the filter box 1 and is fixedly connected. The drain pipe 2 is communicated with the space below the lower filter screen 7.

[0028] In actual use, the motor 4 is first started to drive the main gear 13 to rotate, so that the slave gear 14 meshing therewith drives the two rotating tubes 8 to rotate, and the crushing knife 9 crushes the impurities in the sewage discharged into the filter box 1, and a part of the impurities that have not been crushed remain on the upper filter screen 6. The rotating tube 8 rotates so that the toggle plate 10 rotates, and the impurities that have not been crushed are driven to move in the filter box 1 in cooperation with the effect of the water flow so that they can be cut by the crushing knife 9. After the water flows through the upper filter screen 6, the lower filter screen 7 arranged below it further filters the sewage. At this time, the solenoid valve 12 is in a closed state to prevent the water from flowing out through the sewage outlet 11; the impurities that cannot pass through the upper filter screen 6 after crushing remain on the upper filter screen 6. If there are too many residues, the water inlet pipe 3 is closed, and the rotating tube 8 rotates to drive the toggle plate 10 to rotate. The impurities enter the rotating tube 8 from the sewage outlet 11 through the toggle of the toggle plate 10, and the solenoid valve 12 is opened, and the impurities are discharged from the lower end of the rotating tube 8. The equipment makes the crushing more sufficient and the impurities can be discharged quickly, thereby improving the filtration efficiency.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0030] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filtration device for sewage treatment, comprising a filter box (1), characterized in that: An upper filter screen (6) and a lower filter screen (7) are fixedly arranged in sequence from top to bottom inside the filter box (1); two rotating tubes (8) are rotatably arranged inside the filter box (1); the rotating tubes (8) penetrate the upper filter screen (6) and the lower filter screen (7) and are rotatably connected to the two; the outer wall of the rotating tube (8) above the upper filter screen (6) and the lower filter screen (7) is penetrated by a plurality of evenly distributed sewage outlets (11); the outer wall of the rotating tube (8) is fixedly provided with a plurality of evenly distributed toggle plates (10) cooperating with the sewage outlets (11); the lower ends of the toggle plates (10) are respectively arranged in contact with the upper wall of the upper filter screen (6) and the upper wall of the lower filter screen (7); and the rotating tube (8) is provided with solenoid valves (12) below the upper filter screen (6) and below the lower filter screen (7).

2. A filter device for sewage treatment according to claim 1, characterized in that: The mesh of the upper filter (6) is larger than the mesh of the lower filter (7), and the lower edge of the sewage outlet (11) is arranged to fit the upper wall of the upper filter (6) and the upper wall of the lower filter (7) respectively.

3. A filter device for sewage treatment according to claim 1, characterized in that: A partition plate (5) is fixedly arranged inside the filter box (1) above the upper filter screen (6), and a plurality of evenly distributed crushing knives (9) are fixedly arranged on the outer wall of the rotating tube (8) located between the partition plate (5) and the upper filter screen (6).

4. A filter device for sewage treatment according to claim 3, characterized in that: The upper ends of the rotating tubes (8) are all arranged to pass through the partition plate (5) and are rotatably connected thereto, and the upper ends of the rotating tubes (8) are all coaxially fixedly connected to the slave gear (14).

5. A filter device for sewage treatment according to claim 4, characterized in that: A vertical rod (15) is provided through the upper wall of the filter box (1) and is rotatably connected thereto. A main gear (13) is coaxially fixedly connected to the lower end of the vertical rod (15). The main gear (13) is located between the two slave gears (14) and meshes with both of them.

6. A filter device for sewage treatment according to claim 3, characterized in that: A water inlet pipe (3) is provided through the upper wall of the filter box (1) and is fixedly connected thereto; the lower end of the water inlet pipe (3) is provided through the partition plate (5) and is fixedly connected thereto; the water inlet pipe (3) is communicated with the space below the partition plate (5); a drainage pipe (2) is provided through the side wall of the filter box (1) and is fixedly connected thereto; the drainage pipe (2) is communicated with the space below the lower filter screen (7).

7. A filter device for sewage treatment according to claim 5, characterized in that: A motor (4) for driving the vertical rod (15) to rotate is fixedly arranged on the upper wall of the filter box (1).

8. A filter device for sewage treatment according to claim 1, characterized in that: The lower ends of the rotating tubes (8) are all arranged through the lower wall of the filter box (1) and are rotatably connected thereto, and the lower ends of the rotating tubes (8) are connected to the external space for the discharge of impurities.

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