Multi-stage sewage treatment device

Abstract

The utility model discloses a multi-stage sewage treatment device, which comprises a treatment box, and further comprises a drain grating, a filter membrane component, an ultraviolet disinfection component and a plurality of baffles which are arranged in the treatment box, a pair of frame components which are assembled by vertical plates and cover plates and are used for accommodating filter screens are arranged on the side walls of the baffles, a bending section is integrally formed at one end of each baffle, and the other end of each baffle is provided with an ultraviolet disinfection component. Wherein one frame assembly is slidably mounted on the bent section, and the other frame assembly is fixedly mounted on the horizontal section of the baffle, so that the pair of frame assemblies are matched in the treatment box to filter sewage step by step. Through cooperation of the baffle, the side plates, the frame assembly, the filter screen and the hooks, the filtering baffle with the through holes arranged in a high-low staggered mode is formed in the treatment box, the low-position frame assembly is movably arranged, the baffle does not need to be disassembled when the filter screen is maintained, the filter screen can be directly and rapidly replaced from the position above the treatment box, the maintenance difficulty is greatly lowered, and the downtime is greatly shortened; and the equipment availability is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment, specifically a multi-stage sewage treatment device. Background Technology

[0002] With increasingly stringent environmental protection requirements, multi-stage wastewater treatment devices are widely used in industrial and municipal fields. Traditional multi-stage filtration systems typically employ fixed-level baffle or filter structures.

[0003] For example, Chinese patent document CN221344287U discloses a multi-stage combined sewage treatment tank, including a treatment tank. Inside the treatment tank, a first baffle, a second baffle, a third baffle, and a fourth baffle are vertically installed. The first baffle, the second baffle, the third baffle, and the fourth baffle are arranged in parallel and divide the treatment tank into five equal small water tanks. The upper part of the first baffle, the second baffle, the third baffle, and the fourth baffle are all provided with grooves, and a first filter screen is installed in the grooves. A first side mounting plate, a second side mounting plate, a third side mounting plate, and a fourth side mounting plate are respectively installed on one side. The lower end of the first side mounting plate, the second side mounting plate, the third side mounting plate, and the fourth side mounting plate are all provided with water passage grooves, and a second filter screen is installed in the water passage grooves.

[0004] The aforementioned document requires the machine to be stopped and multiple baffles removed after the filter screen becomes clogged. This operation is cumbersome and time-consuming. In particular, for filters installed at the bottom or side, personnel need to enter the equipment to work, which poses a safety hazard. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage wastewater treatment device to solve the problem of time-consuming and labor-intensive maintenance of filter screens in existing wastewater treatment equipment as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage sewage treatment device, including a treatment tank, and further including a screen, a filter membrane assembly, an ultraviolet disinfection assembly, and several baffles disposed in the treatment tank. The side wall of each baffle is provided with a pair of frame assemblies for accommodating filter screens, which are assembled from upright plates and cover plates. One end of each baffle is integrally formed with a bent section. One of the frame assemblies is slidably installed in the bent section, and the other frame assembly is fixedly installed in the horizontal section of the baffle, so that the pair of frame assemblies cooperate to filter sewage stage by stage in the treatment tank.

[0007] Preferably, both ends of the baffle are fixedly connected to the inner wall of the processing box, and the side walls of the horizontal section and the bent section of the baffle are respectively provided with through holes of different heights. The side wall of the bent section is fixedly installed with a side plate for accommodating the frame assembly.

[0008] Preferably, the bottom of the side plate is provided with a support lug, and the end of the support lug extends to contact the bent section.

[0009] Preferably, the upright plate and the cover plate are rotatably connected by a pivot, the side wall of the upright plate is fixedly installed with bolts, and the top of the cover plate is provided with a groove for accommodating the bolts.

[0010] Preferably, a lug is fixedly installed on the top of the bent section, a hook is movably installed on the lug, and a hanging ring for the hook to be fitted is fixedly installed on the top of the upright plate.

[0011] Preferably, an L-shaped rod is fixedly installed on the side wall of the upright ear.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model uses the cooperation of baffles, side plates, frame components, filters and hooks to form a filter baffle with staggered through holes in the treatment box. The lower frame component is movable, so there is no need to disassemble the baffle when maintaining the filter. The filter can be quickly replaced directly from the top of the treatment box, which greatly reduces the difficulty of maintenance and downtime, and improves the availability of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the baffle of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the frame assembly and side panel detached from the present invention.

[0017] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the frame component of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the baffle of this utility model.

[0019] In the diagram: 1. Treatment box; 2. Sludge bar; 3. Filter membrane assembly; 4. Ultraviolet disinfection assembly; 5. Baffle; 6. Bending section; 7. Hook; 8. Filter screen; 9. Side plate; 10. Vertical plate; 11. Cover plate; 12. Hanging ring; 13. Bolt; 14. Vertical lug; 15. L-shaped rod. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a multi-stage sewage treatment device, including a treatment tank 1, and further including a screen 2, a filter membrane assembly 3, an ultraviolet disinfection assembly 4, and several baffles 5 disposed in the treatment tank 1. The above is existing technology. The screen 2 is used to intercept large particles, the filter membrane assembly 3 is used for fine filtration of the water flow, and the several baffles 5 cooperate to form a flow channel on the inner wall of the treatment tank 1. The side wall of the baffle 5 is provided with a pair of frame assemblies composed of upright plates 10 and cover plates 11 for accommodating filter screens 8. The filter screens 8 are clamped and fixed in the frame assemblies. The upright plates 10 and cover plates 11 are rotatably connected by a rotating shaft, and bolts 13 are fixedly installed on the side wall of the upright plates 10. The top of the cover plate 11 is provided with a groove for accommodating bolts 13, which are wing bolts. One end of the baffle plate 5 is integrally formed with a bent section 6. One frame assembly is slidably installed on the bent section 6. The side wall of the upright plate 10 is provided with several screw holes. Another frame assembly is fixedly installed on the horizontal section of the baffle plate 5. The two ends of the baffle plate 5 are respectively fixedly connected to the inner wall of the treatment tank 1. The side walls of the horizontal section and the bent section 6 of the baffle plate 5 are respectively provided with through holes of different heights. The water flow needs to pass through the through holes of different heights in sequence, which prolongs the contact path between impurities and the filter screen 8, significantly improves the solid-liquid separation efficiency, and reduces the subsequent treatment load, so that a pair of frame assemblies can work together to filter sewage in the treatment tank 1 step by step.

[0022] Please see Figure 2 and Figure 3A side plate 9 for accommodating the frame assembly is fixedly installed on the side wall of the bent section 6. The bottom of the side plate 9 is provided with a support ear, the end of which extends to contact the bent section 6 to support the frame assembly. A vertical ear 14 is fixedly installed on the top of the bent section 6. A hook 7 is movably installed on the vertical ear 14. A hanging ring 12 for the hook 7 to be fitted is fixedly installed on the top of the vertical plate 10. An L-shaped rod 15 is fixedly installed on the side wall of the vertical ear 14. When it is necessary to replace the filter screen 8 located at the low through hole, the operator pulls the hook 7 in conjunction with the hanging ring 12 to lift the frame assembly from the side plate 9. Then, the hanging ring 12 is hung on the L-shaped rod 15. Then, the bolt 13 is turned to rotate and separate the cover plate 11 from the vertical plate 10, and the filter screen 8 can be taken out for replacement. This application uses the cooperation of baffle 5, side plate 9 and hook 7 to form a filter baffle with staggered through holes in the treatment box 1. The low frame component can be moved and installed. The filter screen 8 can be quickly replaced directly from the top of the treatment box 1 without disassembling the baffle 5, which greatly reduces maintenance difficulty and downtime and improves equipment availability.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage wastewater treatment device, comprising a treatment tank (1), characterized in that: It also includes a screen (2), a filter membrane assembly (3), an ultraviolet disinfection assembly (4), and several baffles (5) installed in the treatment tank (1). The side wall of the baffle (5) is provided with a pair of frame assemblies for accommodating the filter screen (8) assembled from a vertical plate (10) and a cover plate (11). One end of the baffle (5) is integrally formed with a bent section (6). One of the frame assemblies is slidably installed in the bent section (6), and the other frame assembly is fixedly installed in the horizontal section of the baffle (5) so that the pair of frame assemblies can cooperate to filter sewage step by step in the treatment tank (1).

2. The multi-stage wastewater treatment device according to claim 1, characterized in that: Both ends of the baffle (5) are fixedly connected to the inner wall of the processing box (1). The horizontal section of the baffle (5) and the side wall of the bent section (6) are respectively provided with through holes of different heights. The side wall of the bent section (6) is fixedly installed with a side plate (9) for accommodating the frame assembly.

3. The multi-stage wastewater treatment device according to claim 2, characterized in that: The bottom of the side plate (9) is provided with a support lug, the end of which extends to contact the bent section (6).

4. The multi-stage wastewater treatment device according to claim 1, characterized in that: The upright plate (10) and the cover plate (11) are rotatably connected by a pivot. Bolts (13) are fixedly installed on the side wall of the upright plate (10), and the top of the cover plate (11) is provided with a groove for accommodating the bolts (13).

5. A multi-stage wastewater treatment device according to claim 1, characterized in that: The top of the bent section (6) is fixedly installed with a lug (14), and a hook (7) is movably installed on the lug (14). The top of the upright plate (10) is fixedly installed with a hanging ring (12) for the hook (7) to be fitted.

6. A multi-stage wastewater treatment device according to claim 5, characterized in that: An L-shaped rod (15) is fixedly installed on the side wall of the upright ear (14).

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