Sewage treatment device with multi-stage filtering function

Abstract

The utility model relates to the field of sewage treatment, and discloses a sewage treatment device with a multi-stage filtering function, which comprises a cylinder, a water inlet fixed at the top of the cylinder, a water outlet fixed at the bottom of the cylinder, a funnel fixed on the inner side wall of the cylinder, a filter screen fixed on the top of the funnel, a top plate fixed on the inner side wall of the cylinder, and the bottom end of the funnel penetrating through the bottom of the top plate. A bottom plate is fixed to the inner side wall of the cylinder, and a filter cylinder is fixed to the top of the bottom plate and located between the top plate and the bottom plate. According to the sewage treatment device, through the filter screen, the filter cylinder and the plurality of filter layers, multi-stage filtration treatment on sewage is realized, so that the sewage is fully filtered without being filtered through a plurality of filter devices, the use cost is reduced, the practicability of the device is improved, and impurities such as sludge on the surface of the filter screen are cleaned through the first cleaning mechanism; meanwhile, the second cleaning mechanism is matched to clean the outer surface of the filter cartridge and the inner wall of the cylinder, manual cleaning is not needed, time is saved, and the working efficiency is improved.

Description

Technical Field

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

[0002] Sewage contains a large amount of organic matter, heavy metals, pathogenic microorganisms and other pollutants. If it is directly discharged without effective treatment, it will cause serious pollution to the water environment, affect the ecological balance and human health. Therefore, a sewage treatment device with a multi-stage filtering function is needed to treat sewage.

[0003] During the use of traditional sewage treatment devices, the number of filtration stages is relatively small, resulting in insufficient filtration and easy to cause more impurities in the sewage. It is necessary to filter the sewage through multiple different treatment devices. Such an operation method not only increases the filtration cost, but also reduces the practicability of the device. Moreover, traditional sewage treatment devices usually do not have a cleaning function. After long-term use, it is necessary to manually clean the inside of the device, which not only increases the working intensity of workers, but also takes a lot of time and reduces the working efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to provide a sewage treatment device with a multi-stage filtering function.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A sewage treatment device with a multi-stage filtering function, including a cylinder. An inlet is fixed at the top of the cylinder, and an outlet is fixed at the bottom of the cylinder. A funnel is fixed on the inner side wall of the cylinder, and a filter screen is fixed at the top of the funnel. A top plate is fixed on the inner side wall of the cylinder, and the bottom end of the funnel penetrates through the bottom of the top plate. A bottom plate is fixed on the inner side wall of the cylinder, and a filter cylinder is fixed on the top of the bottom plate, and the filter cylinder is located between the top plate and the bottom plate. A water outlet pipe is fixed at the bottom of the filter cylinder and penetrates through the bottom of the bottom plate. A rotating shaft is rotatably connected to the middle of the inner top of the cylinder. A motor is fixed at the top of the cylinder, and the output shaft of the motor is fixed to the rotating shaft. A first cleaning mechanism for cleaning the filter screen is provided on the side wall of the rotating shaft. A first collecting mechanism for collecting sludge is provided on the outer side wall of the cylinder. A second cleaning mechanism for cleaning the filter cylinder is provided on the side wall of the rotating shaft. A second collecting mechanism for collecting sludge is provided at the bottom of the bottom plate. A plurality of filter layers are fixed on the inner side wall of the cylinder, and all the plurality of filter layers are located below the water outlet pipe. During the use of this device, through the settings of the filter screen, the filter cylinder and the plurality of filter layers, multi-stage filtering treatment of sewage can be achieved, so that the sewage is fully filtered, without the need to filter through multiple filtering devices, reducing the use cost and improving the practicability of this device. The first cleaning mechanism cleans impurities such as sludge on the surface of the filter screen, and at the same time, the second cleaning mechanism is used to clean the outer surface of the filter cylinder and the inner wall of the cylinder, without manual cleaning, saving time and improving work efficiency.

[0007] As a further solution of the present invention, the first cleaning mechanism includes two first arc-shaped scrapers. The two first arc-shaped scrapers are symmetrically fixed on the side wall of the rotating shaft, and both of the two first arc-shaped scrapers are located above the filter screen. The first collecting mechanism includes a storage box. A first sewage discharge port is opened on the outer side wall of the cylinder, and the lower edge of the first sewage discharge port is flush with the filter screen. The storage box is fixed on the outer side wall of the cylinder below the first sewage discharge port. The driving motor drives the rotating shaft to rotate, and then drives the two first arc-shaped scrapers to rotate. During the rotation of the two first arc-shaped scrapers, impurities such as sludge on the surface of the filter screen are cleaned, and the cleaned impurities such as sludge are scraped into the storage box through the first sewage discharge port for collection.

[0008] As a further solution of the present utility model, the second cleaning mechanism includes two scraping plates. Two connecting plates are symmetrically fixed to the bottom of the side wall of the rotating shaft. The two scraping plates are respectively fixed to the two connecting plates. The second collection mechanism includes a collection bin. The collection bin is disposed through the top of the bottom plate. A through opening is formed in the side wall of the collection bin. Partition plates are fixed to both symmetric sides of the inner side wall of the collection bin. A sealing plate is slidably connected to the through opening, and the sealing plate is flush with the top of the bottom plate. An outlet is formed in the side wall of the collection bin. A second sewage discharge port is formed in the outer side wall of the cylinder, and the outlet is communicated with the second sewage discharge port. A support plate is fixed to the inner side wall of the cylinder. A hydraulic push rod is fixed to the middle of the side wall of the support plate. A second arc-shaped scraping plate is slidably connected to the inner side wall of the collection bin, and the output end of the hydraulic push rod is fixed to the second arc-shaped scraping plate. During the rotation of the rotating shaft, the two scraping plates are driven to rotate by the cooperation of the two connecting plates, so as to clean the inner wall of the cylinder and the outer wall of the filter cylinder. The sludge and other impurities after cleaning will fall into the collection bin for collection. By driving the hydraulic push rod to drive the second arc-shaped scraping plate to slide along the inner wall of the collection bin, the sludge and other impurities in the collection bin can be pushed out of the cylinder, without manual cleaning, saving time and improving work efficiency.

[0009] The beneficial effects of the present utility model are as follows:

[0010] 1. During the use of the device, through the settings of the filter screen, the filter cylinder and multiple filter layers, multi-stage filtration treatment of sewage can be realized, so that the sewage is fully filtered, without the need to filter through multiple filtering devices, reducing the use cost and improving the practicability of the device.

[0011] 2. During the rotation of the rotating shaft, the sludge and other impurities on the surface of the filter screen are cleaned by the first cleaning mechanism, and at the same time, the outer surface of the filter cylinder and the inner wall of the cylinder are cleaned by the cooperation of the second cleaning mechanism, without manual cleaning, saving time and improving work efficiency. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of a sewage treatment device with a multi-stage filtration function proposed by the present utility model;

[0013] Figure 2 It is a schematic cross-sectional view of the cylinder of a sewage treatment device with a multi-stage filtration function proposed by the present utility model;

[0014] Figure 3 It is a schematic cross-sectional view of the funnel and the top plate of a sewage treatment device with a multi-stage filtration function proposed by the present utility model;

[0015] Figure 4 It is a schematic cross-sectional view of the funnel, the top plate, the bottom plate and the filter cylinder of a sewage treatment device with a multi-stage filtration function proposed by the present utility model;

[0016] Figure 5 Explosion schematic diagram of the collection bin and the sealing plate of a sewage treatment device with a multi-stage filtration function proposed by the present utility model.

[0017] In the figure: 1, cylinder; 2, first sewage discharge port; 3, storage box; 4, water inlet; 5, motor; 6, rotating shaft; 7, funnel; 8, filter screen; 9, first arc-shaped scraper; 10, top plate; 11, bottom plate; 12, filter cylinder; 13, scraping plate; 14, filter layer; 15, collection bin; 16, sealing plate; 17, second sewage discharge port; 18, connecting plate; 19, support plate; 20, hydraulic push rod; 21, partition plate; 22, second arc-shaped scraper; 23, discharge port; 24, water outlet pipe; 25, water outlet. Specific implementation manner

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] Refer to Figures 1-5 , a sewage treatment device with a multi-stage filtration function, including a cylinder 1, a water inlet 4 is fixed at the top of the cylinder 1, a water outlet 25 is fixed at the bottom of the cylinder 1, a funnel 7 is fixed on the inner side wall of the cylinder 1, a filter screen 8 is fixed at the top of the funnel 7, a top plate 10 is fixed on the inner side wall of the cylinder 1, and the bottom end of the funnel 7 penetrates through the bottom of the top plate 10. A bottom plate 11 is fixed on the inner side wall of the cylinder 1, a filter cylinder 12 is fixed on the top of the bottom plate 11, and the filter cylinder 12 is located between the top plate 10 and the bottom plate 11. A water outlet pipe 24 is fixed at the bottom of the filter cylinder 12, and the water outlet pipe 24 penetrates through the bottom of the bottom plate 11. A rotating shaft 6 is rotatably connected to the middle of the inner top of the cylinder 1. A motor 5 is fixed at the top of the cylinder 1, and the output shaft of the motor 5 is fixed to the rotating shaft 6. A first cleaning mechanism for cleaning the filter screen 8 is provided on the side wall of the rotating shaft 6. A first collection mechanism for collecting sludge is provided on the outer side wall of the cylinder 1. A second cleaning mechanism for cleaning the filter cylinder 12 is provided on the side wall of the rotating shaft 6. A second collection mechanism for collecting sludge is provided at the bottom of the bottom plate 11. A plurality of filter layers 14 are fixed on the inner side wall of the cylinder 1, and all the plurality of filter layers 14 are located below the water outlet pipe 24. During the use of the device, through the settings of the filter screen 8, the filter cylinder 12 and the plurality of filter layers 14, multi-stage filtration treatment of sewage can be realized, so that the sewage is fully filtered, without the need to filter through multiple filtering devices, reducing the use cost and improving the practicability of the device. The first cleaning mechanism is used to clean impurities such as sludge on the surface of the filter screen 8, and at the same time, the second cleaning mechanism is used to clean the outer surface of the filter cylinder 12 and the inner wall of the cylinder 1, eliminating the need for manual cleaning, saving time and improving work efficiency.

[0020] Refer to Figures 1-4, in a preferred embodiment, the first cleaning mechanism includes two first arc-shaped scraping plates 9, which are symmetrically fixed on the side wall of the rotating shaft 6, and both of the two first arc-shaped scraping plates 9 are located above the filter screen 8. The first collecting mechanism includes a storage box 3. A first sewage discharge port 2 is provided on the outer side wall of the cylinder 1, and the lower eaves of the first sewage discharge port 2 are flush with the filter screen 8. The storage box 3 is fixed below the outer side wall of the cylinder 1 near the first sewage discharge port 2. The driving motor 5 drives the rotating shaft 6 to rotate, thereby driving the two first arc-shaped scraping plates 9 to rotate. During the rotation of the two first arc-shaped scraping plates 9, the sludge and other impurities on the surface of the filter screen 8 are cleaned, and the cleaned sludge and other impurities are scraped into the storage box 3 through the first sewage discharge port 2 for collection.

[0021] Referring to Figures 2-5 , in a preferred embodiment, the second cleaning mechanism includes two scraping plates 13. Two connecting plates 18 are symmetrically fixed at the bottom of the side wall of the rotating shaft 6, and the two scraping plates 13 are respectively fixed to the two connecting plates 18. The second collecting mechanism includes a collecting bin 15, and the collecting bin 15 is disposed through the top of the bottom plate 11. A through port is provided on the side wall of the collecting bin 15. Partition plates 21 are fixed on both sides of the inner side wall of the collecting bin 15 symmetrically. A sealing plate 16 is slidably connected at the through port, and the sealing plate 16 is flush with the top of the bottom plate 11. A discharge port 23 is provided on the side wall of the collecting bin 15, and a second sewage discharge port 17 is provided on the outer side wall of the cylinder 1, and the discharge port 23 is communicated with the second sewage discharge port 17. A support plate 19 is fixed on the inner side wall of the cylinder 1, and a hydraulic push rod 20 is fixed at the middle of the side wall of the support plate 19. A second arc-shaped scraping plate 22 is slidably connected to the inner side wall of the collecting bin 15, and the output end of the hydraulic push rod 20 is fixed to the second arc-shaped scraping plate 22. During the rotation of the rotating shaft 6, the two scraping plates 13 are driven to rotate in cooperation with the two connecting plates 18 to clean the inner wall of the cylinder 1 and the outer wall of the filter cylinder 12. The cleaned sludge and other impurities will fall into the collecting bin 15 for collection. By driving the hydraulic push rod 20 to drive the second arc-shaped scraping plate 22 to slide along the inner wall of the collecting bin 15, the sludge and other impurities in the collecting bin 15 can be pushed out of the cylinder 1, eliminating the need for manual cleaning, saving time and improving work efficiency.

[0022] Working principle of this embodiment: During use of this device, the collection bin 15 is sealed in advance through the sealing plate 16, and then the sewage to be filtered is injected into the cylinder 1 through the water inlet 4. The sewage entering the cylinder 1 is pre-filtered through the filter screen 8 for primary filtering. The water-free water after the initial filtration flows into the top of the bottom plate 11 through the funnel 7, and is filtered twice through the filter cartridge 12. The sewage after the two filtrations enters the inside of the filter cartridge 12, and flows into the top of the multiple filter layers 14 through the outlet pipe 24 for filtering again. The water filtered through the multiple filter layers 14 is discharged from the cylinder 1 through the outlet 25. This treatment method allows the sewage to be filtered multiple times and fully filtered without the need to replace equipment, saving costs and improving the practicality of the device. When the device needs to be cleaned, the sealing plate 1 is pulled out. 6. Release the blockage of the collecting bin 15 and turn on the power switch of the motor 5. The driving motor 5 drives the rotating shaft 6 to rotate, and then drives the two first arc-shaped scrapers 9 to rotate. During the rotation, the two first arc-shaped scrapers 9 clean the sludge and other impurities on the surface of the filter screen 8. The cleaned sludge and other impurities are scraped into the storage box 3 through the first sewage outlet 2 for collection. At the same time, during the rotation of the rotating shaft 6, the two connecting plates 18 drive the two scraper plates 13 to rotate, and the inner wall of the cylinder 1 and the outer wall of the filter cartridge 12 are cleaned. The cleaned sludge and other impurities will fall into the collecting bin 15 and be collected. The hydraulic push rod 20 drives the second arc-shaped scraper 22 to slide along the inner wall of the collecting bin 15, and the sludge and other impurities in the collecting bin 15 are pushed out of the cylinder 1. There is no need for manual cleaning, which saves time and improves work efficiency.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and / or combinations thereof.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0026] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sewage treatment device with a multi-stage filtration function, including a cylinder (1), characterized in that, At the top of the cylinder (1), a water inlet (4) is fixedly installed. At the bottom of the cylinder (1), a water outlet (25) is fixedly installed. On the inner side wall of the cylinder (1), a funnel (7) is fixedly installed. At the top of the funnel (7), a filter screen (8) is fixedly installed. On the inner side wall of the cylinder (1), a top plate (10) is fixedly installed, and the bottom end of the funnel (7) penetrates through the bottom of the top plate (10). On the inner side wall of the cylinder (1), a bottom plate (11) is fixedly installed. On the top of the bottom plate (11), a filter cylinder (12) is fixedly installed, and the filter cylinder (12) is located in the middle of the top plate (10) and the bottom plate (11). At the bottom of the filter cylinder (12), a water outlet pipe (24) is fixedly installed, and the water outlet pipe (24) penetrates through the bottom of the bottom plate (11). At the middle of the inner top of the cylinder (1), a rotating shaft (6) is rotatably connected. At the top of the cylinder (1), a motor (5) is fixedly installed, and the output shaft of the motor (5) is fixed to the rotating shaft (6). On the side wall of the rotating shaft (6), a first cleaning mechanism for cleaning the filter screen (8) is provided. On the outer side wall of the cylinder (1), a first collection mechanism for collecting sludge is provided. On the side wall of the rotating shaft (6), a second cleaning mechanism for cleaning the filter cylinder (12) is provided. At the bottom of the bottom plate (11), a second collection mechanism for collecting sludge is provided. On the inner side wall of the cylinder (1), a plurality of filter layers (14) are fixedly installed, and the plurality of filter layers (14) are all located below the water outlet pipe (24).

2. The sewage treatment device with a multi-stage filtration function according to claim 1, characterized in that, The first cleaning mechanism includes two first arc-shaped scraping plates (9). The two first arc-shaped scraping plates (9) are symmetrically fixed on the side wall of the rotating shaft (6), and the two first arc-shaped scraping plates (9) are both located above the filter screen (8).

3. The sewage treatment device with a multi-stage filtering function according to claim 1, characterized in that, The first collection mechanism includes a storage box (3). A first sewage discharge port (2) is opened on the outer side wall of the cylinder (1), and the lower edge of the first sewage discharge port (2) is flush with the filter screen (8). The storage box (3) is fixed on the outer side wall of the cylinder (1) below the first sewage discharge port (2).

4. The sewage treatment device with a multi-stage filtration function according to claim 1, characterized in that, The second cleaning mechanism includes two scraping plates (13). At the bottom of the side wall of the rotating shaft (6), two connecting plates (18) are symmetrically fixed. The two scraping plates (13) are respectively fixed to the two connecting plates (18).

5. The sewage treatment device with a multi-stage filtration function according to claim 1, characterized in that, The second collection mechanism includes a collection bin (15). The collection bin (15) is arranged through the top of the bottom plate (11). A through port is opened on the side wall of the collection bin (15). On both symmetric sides of the inner side wall of the collection bin (15), partition plates (21) are fixedly installed. A sealing plate (16) is slidably connected at the through port, and the sealing plate (16) is flush with the top of the bottom plate (11). A discharge port (23) is opened on the side wall of the collection bin (15). A second sewage discharge port (17) is opened on the outer side wall of the cylinder (1), and the discharge port (23) is communicated with the second sewage discharge port (17).

6. The sewage treatment device with a multi-stage filtering function according to claim 5, characterized in that, On the inner side wall of the cylinder (1), a support plate (19) is fixedly installed. At the middle of the side wall of the support plate (19), a hydraulic push rod (20) is fixedly installed. A second arc-shaped scraping plate (22) is slidably connected to the inner side wall of the collection bin (15), and the output end of the hydraulic push rod (20) is fixed to the second arc-shaped scraping plate (22).

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