Multi-stage wastewater filtering device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a multistage wastewater filtering device which is characterized in that a first filtering tank, a second filtering tank, a third filtering tank and a fourth filtering tank are respectively arranged in a treatment box, one end of the first filtering tank is communicated with a wastewater inlet pipe, and a second valve is mounted on the wastewater inlet pipe; waste water is injected into the inner side of the first filter tank in the treatment box through a waste water inlet pipe, an output shaft of a motor is controlled to rotate, the output shaft of the motor drives a reciprocating screw rod to rotate, and the reciprocating screw rod is driven to rotate; and when the connecting plate moves towards one side of the recycling box, bristles slide on the top of the filter screen, large-particle impurities are scraped into the recycling box and pushed into the recycling box, and workers can regularly clean the large-particle impurities in the recycling box.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater multi-stage filtering device. Background Art

[0002] Wastewater refers to the water discharged during residents' activities and runoff rainwater. It includes domestic sewage, industrial wastewater, and other unused water such as initial rain runoff into drainage pipes.

[0003] In a Chinese patent with the authorization publication number CN218076813U, a wastewater circulation multi-stage filtering device is disclosed, comprising a bearing unit, a filtering unit and a card and unit, wherein the bearing unit comprises a filter pool, the filtering unit comprises a filtering component for performing preliminary filtering on the wastewater in the filter pool and an activated carbon plate for performing secondary filtering on the wastewater after preliminary filtering in the filter pool, the filtering component and the activated carbon plate are both located in the filter pool, the card and unit comprises a card and a piece for fixing the activated carbon plate, and the card and a piece are located on both sides of the top of the filter pool; the utility model drives the scraper to move through the wastewater, and the scraper rotates on the rotating shaft, so that the scraper cleans the impurities remaining on the surface of the annular filter screen, prevents the mesh holes on the surface of the annular filter screen from being blocked, improves the effect of the annular filter screen on the preliminary filtering of the wastewater, and does not require the staff to clean the surface of the filter screen, thereby reducing the staff's workload.

[0004] The above patent has the following defects: in the above patent, when the scraper scrapes the impurities on the surface of the annular filter, the scraped impurities are still on one side of the annular filter. When more and more wastewater enters the filter pool, a large amount of impurities are added to the filter pool. Eventually, a large amount of impurities will affect the filtering efficiency of the annular filter. For this reason, a multi-stage wastewater filtration device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a wastewater multi-stage filtering device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater multi-stage filtering device, comprising a treatment box, wherein a first filter pool, a second filter pool, a third filter pool and a fourth filter pool are respectively arranged inside the treatment box, one end of the first filter pool is connected to a wastewater inlet pipe, a second valve is installed on the wastewater inlet pipe, a water outlet end of the fourth filter pool is connected to a drain pipe, a first valve is installed on the drain pipe, and a cleaning component is arranged on one side of the first valve;

[0007] The cleaning assembly comprises a motor and a fixing frame, a filter screen is installed on one side of the inner wall of the fixing frame, a reciprocating screw is fixed to the output shaft end of the motor, and a connecting plate is threadedly connected to the outer side of the reciprocating screw.

[0008] Preferably, the first filter tank, the second filter tank, the third filter tank and the fourth filter tank are connected by pipelines.

[0009] Preferably, activated carbon is placed inside the second filter tank, and one side of the motor is fixed to one side of the processing box.

[0010] Preferably, an inclined baffle plate located on one side of the filter screen is fixed on the top of the fixing frame, and a recovery box is fixed between one side of the inclined baffle plate and the inner wall of the first filter tank.

[0011] Preferably, a sliding rod movably penetrating one side of the connecting plate is fixed to the inner wall of the first filter tank, and the outer side of the reciprocating screw rod is rotatably connected to one side of the processing box through a sealed bearing.

[0012] Preferably, a brush plate is hinged at the bottom of the connecting plate, a plurality of bristles are inserted into the bottom of the brush plate, and the bottom of the bristles is slidably connected to the top of the filter screen.

[0013] Preferably, a limiting block is fixed at the bottom of the connecting plate, and the limiting block is located on the top side of the brush plate.

[0014] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0015] The utility model injects waste water into the inner side of the first filter tank located inside the treatment box through a waste water inlet pipe, controls the rotation of the motor output shaft, and the motor output shaft drives the reciprocating screw rod to rotate, so that the connecting plate reciprocates along the slide bar on the top of the filter screen. When the connecting plate moves toward the side of the recovery box, the bristles are made to slide on the top of the filter screen to scrape large particles of impurities into the recovery box, and push the large particles of impurities into the recovery box. Workers only need to clean the large particles in the recovery box regularly. The operation is simple and convenient. The large particles of impurities on the surface of the filter screen are continuously cleaned by the bristles, so that the filter screen is prevented from being blocked, the burden of subsequent treatment steps is reduced, and the adverse effects on the environment are reduced, thereby improving the filtering efficiency of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0018] Figure 2This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0020] Figure 4 This is a schematic diagram of the main cross-sectional structure of the filter screen of the utility model;

[0021] Figure 5 For the utility model Figure 4 Schematic diagram of the structure of area A.

[0022] Explanation of the accompanying drawings: 1. Processing box; 2. Cleaning component; 21. Motor; 22. Connecting plate; 23. Reciprocating screw; 24. Inclined baffle; 25. Recovery box; 26. Sliding rod; 27. Filter screen; 28. Fixed frame; 29. ​​Brush; 210. Limit block; 211. Brush plate; 3. First filter tank; 4. Second filter tank; 5. Third filter tank; 6. Fourth filter tank; 7. First valve; 8. Drain pipe; 9. Wastewater inlet pipe; 10. Second valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application. Example

[0028] See also Figure 1-5 The utility model provides a technical solution: a wastewater multi-stage filtering device, comprising a treatment box 1, wherein a first filter pool 3, a second filter pool 4, a third filter pool 5 and a fourth filter pool 6 are respectively arranged inside the treatment box 1, and valves can be installed on the pipes connected between the first filter pool 3, the second filter pool 4, the third filter pool 5 and the fourth filter pool 6 to control the water flow between each filter pool, one end of the first filter pool 3 is connected with a wastewater inlet pipe 9, and a second valve 10 is installed on the wastewater inlet pipe 9, the first filter pool 3, the second filter pool 4, the third filter pool 5 and the fourth filter pool 6 are connected through a pipe, activated carbon is placed inside the second filter pool 4, one side of the motor 21 is fixed to one side of the treatment box 1, the second valve 10 is used to control the wastewater to enter the wastewater inlet pipe 9, the water outlet end of the fourth filter pool 6 is connected with a drain pipe 8, the first valve 7 is installed on the drain pipe 8, and a cleaning component 2 is arranged on one side of the first valve 7;

[0029] In order to facilitate the cleaning of the filter 27, a cleaning component 2 is provided, which includes a motor 21 and a fixing frame 28. A filter 27 is installed on one side of the inner wall of the fixing frame 28. A reciprocating screw 23 is fixed to the output shaft end of the motor 21. The output shaft of the motor 21 is controlled to rotate, and the output shaft of the motor 21 drives the reciprocating screw 23 to rotate. At this time, the reciprocating screw 23 is threadedly connected to the connecting plate 22, so that the connecting plate 22 reciprocates along the sliding rod 26 on the top of the filter 27. The outer side of the reciprocating screw 23 is threadedly connected to the connecting plate 22, and the top of the fixing frame 28 is fixed. There is an inclined baffle 24 located on one side of the filter screen 27, and a recovery box 25 is fixed between one side of the inclined baffle 24 and the inner wall of the first filter tank 3. When the connecting plate 22 moves toward the side of the recovery box 25, the limit block 210 abuts against the top side of the brush plate 211, and the bristles 29 slide on the top of the filter screen 27 to scrape large particles of impurities into the recovery box 25. A sliding rod 26 that is movable and runs through one side of the connecting plate 22 is fixed to the inner wall of the first filter tank 3, and the outer side of the reciprocating screw 23 is rotatably connected to one side of the processing box 1 through a sealed bearing.

[0030] A brush plate 211 is hinged at the bottom of the connecting plate 22, and a plurality of bristles 29 are inserted at the bottom of the brush plate 211. Workers only need to clean the large particles in the recycling box 25 regularly. The operation is simple and convenient. The bristles 29 continuously clean the large particles on the surface of the filter screen 27 to prevent the filter screen 27 from being blocked. When the connecting plate 22 moves along the sliding rod 26 to the side away from the recycling box 25, the bristles 29 slide over the top of the filter screen 27. At this time, the sliding of the bristles 29 makes the brush plate 211 leave the bottom of the limit block 210. At this time, the bristles 29 will not brush the large particles on the top of the filter screen 27. The bottom of the bristles 29 is slidably connected to the top of the filter screen 27. The limit block 210 is fixed at the bottom of the connecting plate 22, and the limit block 210 is located on the top side of the brush plate 211.

[0031] Working principle: When it is necessary to filter the wastewater, firstly, the wastewater is injected into the inner side of the first filter tank 3 located inside the treatment box 1 through the wastewater inlet pipe 9. When the wastewater is injected, the wastewater is filtered through the filter screen 27 to remove large particles of impurities, such as suspended matter, silt, etc. When a large amount of silt accumulates on the top of the filter screen 27, it is only necessary to press the switch to control the output shaft of the motor 21 to rotate, and the output shaft of the motor 21 drives the reciprocating screw 23 to rotate. At this time, the reciprocating screw 23 is threadedly connected to the connecting plate 22, so that the connecting plate 22 moves back and forth on the top of the filter screen 27 along the slide rod 26. When the connecting plate When 22 moves toward the recycling box 25, the limit block 210 is in contact with the top side of the brush plate 211, and the bristles 29 are slid on the top of the filter 27 to scrape the large particles into the recycling box 25. The large particles are pushed into the recycling box 25. The workers can clean the large particles in the recycling box 25 regularly. The operation is simple and convenient. The bristles 29 can continuously clean the large particles on the surface of the filter 27 to prevent the filter 27 from being blocked, reduce the burden of subsequent processing steps, and reduce the adverse effects on the environment, thereby improving the filtering efficiency of the filter 27.

[0032] When the connecting plate 22 moves along the sliding rod 26 to the side away from the recovery box 25, the bristles 29 slide over the top of the filter 27. At this time, the bristles 29 slide, so that the brush plate 211 leaves the bottom of the limit block 210. At this time, the bristles 29 will not brush the large particles on the top of the filter 27, nor will they push the large particles to the left side of the filter 27.

[0033] At this time, the wastewater with large particles removed enters the second filter tank 4, and activated carbon filter material is added to the second filter tank 4 to remove pollutants such as organic matter and heavy metals in the wastewater. Chemical agents such as flocculants and oxidants are added to the third filter tank 5 to chemically transform or precipitate pollutants that are difficult to remove. Finally, the metabolism of microorganisms is used in the fourth filter tank 6 to further degrade organic matter and ammonia nitrogen and other substances. The filtered wastewater opens the first valve 7 and is discharged through the drain pipe 8. The wastewater is deeply treated by physical, chemical and biological methods, which can effectively remove various pollutants and improve water quality. It can be applied to various types of wastewater treatment and can achieve continuous and stable wastewater treatment.

[0034] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0035] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0036] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wastewater multi-stage filtration device, comprising a treatment box (1), characterized in that: The treatment box (1) is provided with a first filter pool (3), a second filter pool (4), a third filter pool (5) and a fourth filter pool (6) respectively. One end of the first filter pool (3) is connected to a wastewater inlet pipe (9), and a second valve (10) is installed on the wastewater inlet pipe (9). The water outlet of the fourth filter pool (6) is connected to a drain pipe (8), and a first valve (7) is installed on the drain pipe (8). A cleaning component (2) is provided on one side of the first valve (7); The cleaning assembly (2) comprises a motor (21) and a fixing frame (28), a filter screen (27) being mounted on one side of an inner wall of the fixing frame (28), a reciprocating screw (23) being fixed to an output shaft end of the motor (21), and a connecting plate (22) being threadedly connected to the outer side of the reciprocating screw (23).

2. A wastewater multi-stage filtration device according to claim 1, characterized in that: The first filter pool (3), the second filter pool (4), the third filter pool (5) and the fourth filter pool (6) are connected to each other via pipelines.

3. A wastewater multi-stage filtration device according to claim 2, characterized in that: Activated carbon is placed inside the second filter tank (4), and one side of the motor (21) is fixed to one side of the processing box (1).

4. A wastewater multi-stage filtration device according to claim 3, characterized in that: An inclined baffle (24) located on one side of the filter screen (27) is fixed to the top of the fixing frame (28), and a recovery box (25) is fixed between one side of the inclined baffle (24) and the inner wall of the first filter tank (3).

5. A wastewater multi-stage filtration device according to claim 4, characterized in that: A sliding rod (26) movably penetrating one side of the connecting plate (22) is fixed to the inner wall of the first filter tank (3), and the outer side of the reciprocating screw rod (23) is rotatably connected to one side of the processing box (1) via a sealed bearing.

6. A wastewater multi-stage filtration device according to claim 5, characterized in that: A brush plate (211) is hingedly connected to the bottom of the connecting plate (22), a plurality of bristles (29) are inserted into the bottom of the brush plate (211), and the bottom of the bristles (29) is slidably connected to the top of the filter screen (27).

7. A wastewater multi-stage filtration device according to claim 6, characterized in that: A limiting block (210) is fixed at the bottom of the connecting plate (22), and the limiting block (210) is located on one side of the top of the brush plate (211).

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