Multi-stage sewage treatment device for water conservancy design

Abstract

This utility model relates to the field of sewage treatment technology and provides a multi-stage sewage treatment device for hydraulic design, including a bottom box (1), a box cover (2) on the top of the bottom box (1), an inlet pipe (3) connected to the box cover (2), a drain pipe (11) connected to the bottom box (1), at least one standard box (4) is provided between the bottom box (1) and the box cover (2), and filter components (5) are provided in both the bottom box (1) and the standard box (4). The side walls of the box cover (2), the standard box (4) and the bottom box (1) are all fixed with screw hole plates (6), and adjacent screw hole plates (6) are connected by bolts (7). This utility model can flexibly increase or decrease the number of filter screens with different filter hole specifications to adapt to the treatment of sewage with different pollution levels.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a multi-stage wastewater treatment device for hydraulic design. Background Technology

[0002] Wastewater treatment is a routine part of water conservancy projects. Wastewater treatment needs to be designed according to the actual water quality. Generally, urban wastewater needs to be pumped out by a primary wastewater pump, then filtered through a filter screen to remove sludge and most impurities, and then pumped out by a secondary pump for subsequent processes.

[0003] In practical applications, existing multi-stage wastewater filtration devices generally suffer from the problem of being unable to adapt to wastewater with different levels of pollution according to filtration requirements, and it is difficult to flexibly increase or decrease the number of filter screens with different pore sizes. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a multi-stage sewage treatment device for hydraulic design, which can flexibly increase or decrease the number of filter screens with different filter hole specifications to adapt to the treatment of sewage with different pollution levels.

[0005] A multi-stage sewage treatment device for hydraulic design includes a base tank, a cover on top of the base tank, an inlet pipe connected to the cover, a drain pipe connected to the base tank, at least one standard tank between the base tank and the cover, filter components in both the base tank and the standard tank, and screw plates fixed to the side walls of the cover, the standard tank, and the base tank, with adjacent screw plates connected by bolts.

[0006] Furthermore, the lower end face of both the lid and the standard box is integrally formed with a hollow frame, and the upper end face of both the bottom box and the standard box is provided with a slot that matches the hollow frame.

[0007] Furthermore, a sealing gasket is fixed to the inner wall of the slot.

[0008] Furthermore, the filter assembly includes a support frame fixed to the bottom box or the standard box and a mounting frame erected on the support frame, wherein a filter screen is fixedly connected inside the mounting frame.

[0009] Furthermore, the filter assembly is tilted.

[0010] Furthermore, the tilt directions of two adjacent filter components are opposite.

[0011] Furthermore, the water inlet pipe is connected to one end inside the tank cover, located on the highest inclined side of the filter screen adjacent to the tank cover.

[0012] Furthermore, an adhesive plate is fixed to the mounting frame and adheres to the inner wall of the base box or standard box.

[0013] Furthermore, a pull ring is fixedly connected to the mounting frame.

[0014] Furthermore, a handle is fixed to the side wall of the standard box, and a lifting hole is provided on the handle.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the number of standard boxes can be flexibly increased or decreased according to the different levels of pollution in the wastewater, thereby increasing or decreasing the number of filter screens with different filter hole specifications. By inserting the hollow frame into the slot, the screw holes on the two adjacent screw hole plates can be quickly aligned, which helps to quickly position the installation bolts and connect the box cover, standard box and bottom box in pairs. Through the flange, the water inlet pipe or drain pipe is connected to the external pipe, and the multi-stage wastewater treatment operation can begin. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a multi-stage wastewater treatment device for hydraulic engineering design.

[0019] Figure 2 It is a structural breakdown diagram;

[0020] Figure 3 This is a schematic diagram of the bottom box;

[0021] Figure 4 This is a schematic diagram of a standard container;

[0022] Figure 5 This is a schematic diagram of the filter component.

[0023] In the diagram: 1. Base box; 2. Box cover; 3. Inlet pipe; 4. Standard box; 5. Filter assembly; 51. Support frame; 52. Mounting frame; 53. Filter screen; 54. Collection frame; 55. Adhesive plate; 56. Pull ring; 6. Screw hole plate; 7. Bolt; 8. Hollow frame; 9. Slot; 10. Sealing gasket; 11. Drain pipe; 12. Handle; 13. Lifting hole; 14. Flange. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific implementation examples:

[0026] like Figure 1-5 As shown, a multi-stage sewage treatment device for water conservancy design includes a bottom tank 1, a tank cover 2 on top of the bottom tank 1, an inlet pipe 3 connected to the tank cover 2 for receiving sewage, and a drain pipe 11 connected to the bottom tank 1 for discharging the filtered water. At least one standard tank 4 is provided between the bottom tank 1 and the tank cover 2. Both the bottom tank 1 and the standard tank 4 are equipped with filter components 5. The number of standard tanks 4 can be set according to the filtration requirements of different sewage, and the number of filter components 5 with different filter hole specifications can be flexibly increased or decreased to adapt to the treatment of sewage with different pollution levels. In this embodiment, two standard tanks 4 are provided. Both the bottom tank 1 and the standard tank 4 are equipped with filter components 5 for multi-stage filtration of sewage. The side walls of the tank cover 2, the standard tank 4 and the bottom tank 1 are all fixedly connected with screw plate 6. Two adjacent screw plates 6 are connected by bolts 7, connecting the tank cover 2, the standard tank 4 and the bottom tank 1 in pairs.

[0027] like Figure 1-5 As shown, the lower end faces of the box cover 2 and the standard box 4 are integrally formed with hollow frames 8, and the upper end faces of the bottom box 1 and the standard box 4 are provided with slots 9 that are adapted to the hollow frames 8. When connecting the bottom box 1 and the standard box 4, two standard boxes 4, or the standard box 4 and the box cover 2, the hollow frames 8 are inserted into the slots 9, so that the screw holes on the two adjacent screw hole plates 6 can be quickly aligned, which helps to quickly position and install the bolts 7 and improve the installation speed. A sealing gasket 10 is bonded to the inner wall of the slot 9. The sealing gasket 10 is a rubber gasket. In this embodiment, the thickness of the sealing gasket 10 is 0.5cm. The sealing gasket 10 helps to improve the sealing effect of the connection between the bottom box 1 and the standard box 4, two standard boxes 4, or the standard box 4 and the box cover 2.

[0028] like Figure 1-5 As shown, the filter assembly 5 includes a support frame 51 fixedly connected to the bottom box 1 or the standard box 4 and an installation frame 52 mounted on the support frame 51. A filter screen 53 is fixedly connected inside the installation frame 52. The filter holes of the filter screen 53 in the bottom box 1 and the standard box 4 decrease in size from top to bottom, so that sewage can be filtered step by step.

[0029] like Figure 1-5As shown, the filter assembly 5 is inclined, and the support frame 51 is inclined and fixed inside the base box 1 or standard box 4. The mounting frame 52 is located on the lowest side of the inclined surface and is fixedly connected to the collection frame 54. The collection frame 54 helps to concentrate dirt at the collection frame 54 under the impact of water flow and gravity, making it easier and more convenient to clean the dirt on the filter screen 53 later. In addition, the inclined directions of two adjacent filter assemblies 5 are opposite. This allows water to fall to the highest inclined side of the lower filter assembly 5 after passing through the upper filter assembly 5. If the two adjacent filter assemblies 5 are arranged in parallel, some areas of the filter holes on the filter screen 53 will not be used frequently, thereby reducing the filtration efficiency.

[0030] like Figure 1-5 As shown, the water inlet pipe 3 is connected to one end inside the tank cover 2, which is located on the highest inclined side of the filter screen 53 adjacent to the tank cover 2. When the amount of sewage is large, the sewage can flow along the inclined surface of the filter screen 53, thereby improving the filtration effect.

[0031] like Figure 1-5 As shown, the collection frame 54 is attached to the inner wall of the bottom box 1 or the standard box 4. The mounting frame 52 is also fixedly connected to the mounting plate 55, which is attached to the inner wall of the bottom box 1 or the standard box 4. The mounting plate 55 is set to cooperate with the collection frame 54 so that the filter screen 53 and the mounting frame 52 will not move horizontally or tilted under the impact of water flow, thus improving the filtration stability.

[0032] like Figure 1-5 As shown, the multi-stage sewage treatment device in this embodiment is a small sewage treatment device. A pull ring 56 is fixedly connected to the mounting frame 52. The pull ring 56 helps the staff to pull or cooperate with the hoisting rope, hook and crane to remove the mounting frame 52 and the filter screen 53, and to clean the sewage collected in the collection frame 54.

[0033] like Figure 1-5 As shown, a handle 12 is fixedly connected to the side wall of the standard box 4. A lifting hole 13 is provided on the handle 12. The lifting hole 13, together with the lifting rope, hook and crane or the handle 12, helps to install the standard box 4.

[0034] like Figure 1-5 As shown, both the inlet pipe 3 and the drain pipe 11 are provided with flanges 14 at their free ends. The flanges 14 are used to connect the inlet pipe 3 or the drain pipe 11 to an external pipe.

[0035] The working principle of a multi-stage sewage treatment device for water conservancy design in this embodiment is as follows: During use, the number of standard boxes 4 can be flexibly increased or decreased according to the different degrees of pollution of the sewage, thereby increasing or decreasing the number of filter screens 53 with different filter hole specifications. By inserting the hollow frame 8 into the slot 9, the screw holes on the two adjacent screw hole plates 6 can be quickly aligned, which helps to quickly position the bolts 7 and connect the box cover 2, standard box 4 and bottom box 1 in pairs. Through the flange 14, the inlet pipe 3 or the drain pipe 11 is connected to the external pipe, and the multi-stage sewage treatment operation can begin.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 multi-stage sewage treatment device for hydraulic engineering design, characterized in that: The system includes a base box (1), a cover (2) on top of the base box (1), an inlet pipe (3) connected to the cover (2), a drain pipe (11) connected to the base box (1), at least one standard box (4) between the base box (1) and the cover (2), a filter assembly (5) is provided in both the base box (1) and the standard box (4), and screw holes (6) are fixed to the side walls of the cover (2), the standard box (4) and the base box (1), and adjacent screw holes (6) are connected by bolts (7).

2. The multi-stage sewage treatment device for hydraulic design according to claim 1, characterized in that: The lower end face of the box cover (2) and the standard box (4) are integrally formed with a hollow frame (8), and the upper end face of the bottom box (1) and the standard box (4) are provided with a slot (9) that matches the hollow frame (8).

3. A multi-stage sewage treatment device for hydraulic design according to claim 2, characterized in that: A sealing gasket (10) is fixed to the inner wall of the slot (9).

4. A multi-stage sewage treatment device for hydraulic design according to claim 1, characterized in that: The filter assembly (5) includes a support frame (51) fixed to the bottom box (1) or the standard box (4) and an installation frame (52) mounted on the support frame (51), wherein a filter screen (53) is fixedly connected inside the installation frame (52).

5. A multi-stage sewage treatment device for hydraulic design according to claim 4, characterized in that: The filter assembly (5) is tilted.

6. A multi-stage sewage treatment device for hydraulic design according to claim 5, characterized in that: The two adjacent filter components (5) are tilted in opposite directions.

7. A multi-stage sewage treatment device for hydraulic design according to claim 6, characterized in that: The water inlet pipe (3) is connected to one end inside the box cover (2), located on the highest inclined side of the filter screen (53) adjacent to the box cover (2).

8. A multi-stage sewage treatment device for hydraulic design according to claim 7, characterized in that: The mounting frame (52) is fixed with a bonding plate (55) that adheres to the inner wall of the base box (1) or standard box (4).

9. A multi-stage sewage treatment device for hydraulic design according to claim 4, characterized in that: A pull ring (56) is fixedly connected to the mounting frame (52).

10. A multi-stage sewage treatment device for hydraulic design according to claim 9, characterized in that: The standard box (4) has a handle (12) fixed to its side wall, and the handle (12) has a lifting hole (13).

Images