Multi-stage filtering assembly for sewage treatment

Abstract

The utility model relates to the technical field of multistage filtering, in particular to a multistage filtering assembly for sewage treatment, which adopts the technical scheme that the multistage filtering assembly comprises a first filtering bin, a first filtering net is fixedly mounted at the front end of the inner wall of the first filtering bin, and a second filtering bin is mounted at the front end of the first filtering bin in a communicated manner; a second filter screen is fixedly mounted at the front end of the inner wall of the second filter bin, and a communication bin is mounted at the front end of the second filter bin in a communicating manner; the back-flushing blow-off pipe is embedded into the upper surface of the first filtering bin; and the back-flushing liquid inlet pipe is embedded in the upper surface of the communication bin. The problem that in the prior art, when a device is used, cleaned dirt is difficult to discharge is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage filtration, in particular to a multi-stage filtration component for sewage treatment. Background Art

[0002] The filter is an indispensable device on the pipeline for conveying media. It is usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve or other equipment to eliminate impurities in the medium to protect the normal use of the valve and equipment.

[0003] Chinese utility model patent: Publication number CN219722116U discloses a multi-stage filter assembly, including a filter box and a filter plate for filtering. The filter plate is detachably installed in the inner cavity of the filter box, and the end surface of the filter plate and the open end of the filter box are flush with each other. An anti-blocking assembly is provided in the inner cavity of the filter box for preventing the filter plate from being blocked.

[0004] In the prior art, CN219722116U is used by pressing the other end of the knocking plate to rotate the knocking plate, and then quickly canceling the pressing force on the knocking plate. At this time, the torsion spring releases its own elastic potential energy, achieving the purpose of the knocking plate knocking the lower end surface of the filter plate 2, causing the knocking plate to vibrate, and while the filter plate is vibrating, the impurities are separated from the upper end surface of the filter plate, which can speed up the flow rate of sewage, solve the technical problems existing in the prior art, and prevent the filtration of sewage from being adversely affected. However, in actual use, the dirt scraped off the filter plate is difficult to discharge, which will still cause the filter plate to be blocked in the long run, so a multi-stage filtration component for sewage treatment is needed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-stage filtering component for sewage treatment, which has the advantage of effectively cleaning the dirt generated during sewage filtration, and solves the problem in the prior art that it is difficult to discharge the cleaned dirt when the device is in use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage filter assembly for sewage treatment, comprising a first filter chamber, a first filter screen is fixedly installed on the front end of the inner wall of the first filter chamber, a second filter chamber is connected and installed on the front end of the first filter chamber, a second filter screen is fixedly installed on the front end of the inner wall of the second filter chamber, a connecting chamber is connected and installed on the front end of the second filter chamber, and further comprising a backwash drain pipe and a backwash liquid inlet pipe;

[0007] The backwash drain pipe is embedded and installed on the upper surface of the first filter chamber;

[0008] The recoil liquid inlet pipe is embedded and installed on the upper surface of the connecting chamber.

[0009] When using a multi-stage filtering component for sewage treatment in the technical solution, sewage is injected into the first filter chamber through the water inlet pipe, and the sewage is effectively filtered through the first filter screen and the second filter screen, so that the filtered sewage can be discharged through the drain pipe. In the case of long-term use, the drive motor body can be started to rotate the transmission rod, and then the first filter screen and the second filter screen are scraped to remove dirt through the scraper. After the dirt is scraped off, the water inlet pipe and the drain pipe can be closed, and the cleaning liquid can be injected into the connecting chamber through the backwash liquid inlet pipe, and the dirt flushed out by the cleaning liquid can be discharged through the backwash drain pipe.

[0010] Preferably, a driving motor body is fixedly installed at the center of the rear end of the first filter bin, and one side of the first filter bin is open and connected to a water inlet pipe.

[0011] The arrangement of the water inlet pipe allows sewage to enter the first filter chamber through the water inlet pipe and be filtered through the first filter screen.

[0012] Preferably, a transmission rod is installed at the front end of the driving motor body, the transmission rod passes through the center of the first filter screen and the second filter screen, and two scrapers are fixedly installed on the transmission rod.

[0013] By passing the transmission rod through the centers of the first filter screen and the second filter screen, the stability of the transmission rod during rotation is improved.

[0014] Preferably, the mesh size of the first filter is larger than the mesh size of the second filter.

[0015] By making the mesh aperture of the first filter net larger than the mesh aperture of the second filter net, layer-by-layer filtration can be achieved when filtering dirt, and dirt can be smoothly backflushed when backflushing is performed.

[0016] Preferably, the two scrapers are in contact with the back sides of the first filter screen and the second filter screen respectively but are not fixedly connected.

[0017] By making the scraper frame contact with the back sides of the first filter net and the second filter net but not fixedly connected, the scraper frame can be used to scrape away dirt attached to the back sides of the first filter net and the second filter net.

[0018] Preferably, a hole is opened at the center of the front end of the connecting chamber and a drainage pipe is installed in the connecting chamber.

[0019] By arranging a drainage pipe at the front end of the connecting chamber, the filtered sewage can be discharged through the drainage pipe when in use.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] The utility model provides a recoil drainage pipe, and the recoil drainage pipe is arranged on the first filter chamber, and a recoil liquid inlet pipe is arranged, and the recoil liquid inlet pipe is arranged on the connecting chamber. When the filter is in use, cleaning liquid is injected into the connecting chamber through the recoil liquid inlet pipe, and dirt flushed out by the cleaning liquid is discharged through the recoil drainage pipe, thereby achieving the effect of effectively cleaning dirt generated during sewage filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0024] Figure 3 For the utility model Figure 2 The structural diagram of the enlarged part in the middle;

[0025] Figure 4 It is a schematic diagram of the scraper frame connection structure of the utility model.

[0026] In the figure: 1. first filter chamber; 2. driving motor body; 3. recoil drain pipe; 4. water inlet pipe; 5. second filter chamber; 6. recoil liquid inlet pipe; 7. drain pipe; 8. connecting chamber; 9. second filter screen; 10. first filter screen; 11. transmission rod; 12. scraper. DETAILED DESCRIPTION

[0027] 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.

[0028] Example

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment provided by the utility model: a multi-stage filtering component for sewage treatment, comprising a first filtering chamber 1, a first filter screen 10 is fixedly installed on the front end of the inner wall of the first filtering chamber 1, a second filtering chamber 5 is connected and installed on the front end of the first filtering chamber 1, a second filter screen 9 is fixedly installed on the front end of the inner wall of the second filtering chamber 5, a connecting chamber 8 is connected and installed on the front end of the second filtering chamber 5, and further comprising a backwash drain pipe 3 and a backwash liquid inlet pipe 6;

[0030] Specifically, the backwash drain pipe 3 is embedded and installed on the upper surface of the first filter chamber 1; the backwash liquid inlet pipe 6 is embedded and installed on the upper surface of the connecting chamber 8. By setting the backwash drain pipe 3 and setting the backwash drain pipe 3 on the first filter chamber 1, and by setting the backwash liquid inlet pipe 6 and setting the backwash liquid inlet pipe 6 on the connecting chamber 8, when in use, the cleaning liquid is injected into the connecting chamber 8 through the backwash liquid inlet pipe 6, and the dirt flushed by the cleaning liquid is discharged through the backwash drain pipe 3, so as to achieve the effect of effectively cleaning the dirt generated during sewage filtration.

[0031] Furthermore, a driving motor body 2 is fixedly installed at the center of the rear end of the first filter chamber 1 , and one side of the first filter chamber 1 is opened and connected with a water inlet pipe 4 .

[0032] By providing the water inlet pipe 4 , sewage can enter the first filter chamber 1 through the water inlet pipe 4 and be filtered through the first filter screen 1 .

[0033] Furthermore, a transmission rod 11 is installed at the front end of the driving motor body 2 . The transmission rod 11 passes through the center of the first filter screen 10 and the second filter screen 9 . Two scraper racks 12 are fixedly installed on the transmission rod 11 .

[0034] By passing the transmission rod 11 through the centers of the first filter screen 10 and the second filter screen 9 , the stability of the transmission rod 11 during rotation is improved.

[0035] Furthermore, the mesh size of the first filter screen 10 is larger than the mesh size of the second filter screen 9 .

[0036] By making the mesh size of the first filter 10 larger than the mesh size of the second filter 9, layer-by-layer filtration can be achieved when filtering waste, and waste can be smoothly backflushed when backflushing is performed.

[0037] Furthermore, the two scrapers 12 are in contact with the back sides of the first filter screen 10 and the second filter screen 9 respectively but are not fixedly connected.

[0038] By making the scraper 12 contact with the back sides of the first filter screen 10 and the second filter screen 9 but not fixedly connected thereto, the scraper 12 can be used to scrape away dirt attached to the back sides of the first filter screen 10 and the second filter screen 9 .

[0039] Furthermore, a hole is opened at the center of the front end of the connecting chamber 8 and a drain pipe 7 is installed in the connecting chamber.

[0040] By arranging a drain pipe 7 at the front end of the connecting chamber 8, the filtered sewage can be discharged through the drain pipe 7 during use.

[0041] When the utility model is used, sewage is injected into the first filter chamber 1 through the water inlet pipe 4, and the sewage is effectively filtered through the first filter screen 10 and the second filter screen 9, so that the filtered sewage can be discharged through the drain pipe 7. In the case of long-term use, the drive motor body 2 can be started to rotate the transmission rod 11, and then the first filter screen 10 and the second filter screen 9 are scraped off the dirt through the scraper 12. After the dirt is scraped off, the water inlet pipe 4 and the drain pipe 7 can be closed, and the cleaning liquid can be injected into the connecting chamber 8 through the backwash liquid inlet pipe 6, and the dirt flushed out by the cleaning liquid is discharged through the backwash drain pipe 3.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multi-stage filtering assembly for sewage treatment, comprising a first filtering chamber (1), a first filter screen (10) being fixedly mounted on the front end of the inner wall of the first filtering chamber (1), a second filtering chamber (5) being connected and mounted on the front end of the first filtering chamber (1), a second filter screen (9) being fixedly mounted on the front end of the inner wall of the second filtering chamber (5), and a connecting chamber (8) being connected and mounted on the front end of the second filtering chamber (5), characterized in that: Also includes: A backwash drain pipe (3) is embedded and installed on the upper surface of the first filter chamber (1); The backwash liquid inlet pipe (6) is embedded and installed on the upper surface of the communication chamber (8).

2. A multi-stage filtration component for sewage treatment according to claim 1, characterized in that: A driving motor body (2) is fixedly mounted at the center of the rear end of the first filter chamber (1), and one side of the first filter chamber (1) is open and connected to a water inlet pipe (4).

3. A multi-stage filtration component for sewage treatment according to claim 2, characterized in that: A transmission rod (11) is installed at the front end of the driving motor body (2), the transmission rod (11) passes through the center of the first filter screen (10) and the second filter screen (9), and two scraper racks (12) are fixedly installed on the transmission rod (11).

4. A multi-stage filtration component for sewage treatment according to claim 1, characterized in that: The mesh size of the first filter screen (10) is larger than the mesh size of the second filter screen (9).

5. A multi-stage filtration component for sewage treatment according to claim 3, characterized in that: The two scraper frames (12) are in contact with the back sides of the first filter screen (10) and the second filter screen (9) respectively but are not fixedly connected.

6. A multi-stage filtration component for sewage treatment according to claim 1, characterized in that: The communication chamber (8) has a hole at the center of the front end thereof and is connected to a drainage pipe (7).

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