Multi-stage filtering device for blow-off pipe network

Abstract

The utility model discloses a multistage filtering device for a sewage discharge pipe network, which comprises a sewage treatment box, a sealing sleeve is arranged on one side inside the upper end of the sewage treatment box, a filtering cylinder is connected inside the sealing sleeve through a bearing, a spiral blade is arranged inside the filtering cylinder, and a supporting rod is welded inside one end, close to the sealing sleeve, of the filtering cylinder. A rotating rod is fixedly connected to the supporting rod, a motor is fixedly installed on the side, right opposite to the rotating rod, of the upper end of the sewage treatment box, a first filtering bin is arranged on the side, below the filtering cylinder, of the sewage treatment box, and a second filtering bin is arranged on the side, below the first filtering bin, of the sewage treatment box; compared with the prior art, the multi-stage sewage filtering device has the advantages that impurities with large sizes in sewage can be conveyed to the port and discharged through rotation of the filter cartridge, accumulation of the impurities in the filter cartridge is effectively avoided, filtered water falls on the quartz sand and the activated carbon filter element, the sewage can be further filtered, and therefore the effect of multi-stage filtering of the sewage is achieved.

Description

Technical Field

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

[0002] In the process of treating sewage, existing sewage purification devices in municipal sewage pipe networks are prone to clogging the filter screen with debris or sludge in the sewage, necessitating frequent replacement, which affects treatment efficiency. Chinese Patent CN213569962U discloses a sewage purification device for a municipal sewage pipe network, comprising a sewage treatment tank, a through-hole formed on the upper surface of the sewage treatment tank, a sewage pipe fixedly mounted on the inner wall of the through-hole, an opening formed on the right side of the sewage treatment tank, a collection frame fixedly mounted on the inner wall of the opening, a limiter net fixedly mounted on the inner wall of the collection frame, an inclined filter plate and a filter box fixedly mounted on the inner wall of the sewage treatment tank, and activated carbon granules disposed inside the filter box. The sewage purification device for a municipal sewage pipe network, by providing the inclined filter plate, the collection frame, the limiter net, the drain pipe, and the drain valve, allows the sewage purification device to pass through the inclined filter plate into the collection frame and be discharged through the drain pipe during the sewage treatment process, thereby preventing clogging of the inclined filter plate.

[0003] The above-mentioned prior art has the following shortcomings: When the inclined filter plates perform initial filtration of sewage, some impurities in the sewage tend to remain on the surface of the inclined filter plates, thereby affecting normal filtration of the sewage. Furthermore, the filter box is directly installed inside the sewage treatment tank, making it difficult to replace it later. Therefore, a multi-stage filtration device for a sewage pipe network is provided to address the above-mentioned issues. Utility Model Content

[0004] In order to solve the problems in the above background technology, the technical solution adopted by the utility model to solve the technical problems is: a multi-stage filtering device for a sewage pipe network, which includes: a sewage treatment tank, a sealing sleeve is provided on one side of the inner part of the upper end of the sewage treatment tank, a filter cartridge is connected to the inside of the sealing sleeve through a bearing, a spiral blade is provided inside the filter cartridge, a support rod is welded to the inside of the filter cartridge close to the sealing sleeve, the support rod is fixedly connected to a rotating rod, a motor is fixedly installed on the side of the upper end of the sewage treatment tank facing the rotating rod, a first filter bin is provided on the side of the sewage treatment tank below the filter cartridge, and a second filter bin is provided on the side of the sewage treatment tank below the first filter bin.

[0005] As a preferred technical solution of the present invention, a drawer frame is inserted into the first filter bin, a filter cloth is provided on the bottom side of the drawer frame, and the side of the drawer frame above the filter cloth is filled with quartz sand.

[0006] As a preferred technical solution of the present invention, the bottom of the drawer frame is a mesh structure, and the outer end of the drawer frame is connected to the outside of the sewage treatment tank by screws.

[0007] As a preferred technical solution of the present invention, an activated carbon filter element is inserted into the interior of the second filter chamber, and the activated carbon filter element is located outside the sewage treatment tank and is screwed to a sealing plate at one end.

[0008] As an optimal technical solution of the present invention, the output end of the motor is connected to the rotating rod, the filter cartridge is a mesh structure facing the outer side of the drawer frame, and the end of the filter cartridge away from the sealing sleeve is connected to the inside of the sewage treatment box through a bearing.

[0009] As a preferred technical solution of the present invention, a drainage pipe is provided on one side of the bottom end of the sewage treatment tank, and the bottom side of the interior of the sewage treatment tank is an inclined surface.

[0010] The utility model has the following advantages: the rotation of the filter cartridge can transport the larger impurities in the sewage to the port and discharge them, effectively avoiding the accumulation of impurities inside the filter cartridge and automatically cleaning;

[0011] The filtered water falls on the quartz sand and activated carbon filter element, which can further filter and treat the sewage, thereby achieving the effect of multi-stage filtration of sewage. The drawer-type installation method is convenient for later disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the partially disassembled structure of a preferred embodiment of the utility model;

[0014] Figure 3 It is a schematic cross-sectional view of a preferred embodiment of the present invention.

[0015] Explanation of the accompanying symbols: 1. Sewage treatment box; 2. Sealing sleeve; 3. Filter cartridge; 301. Spiral blade; 4. Support rod; 5. Rotating rod; 6. Motor; 7. First filter chamber; 8. Drawer frame; 9. Filter cloth; 10. Quartz sand; 11. Second filter chamber; 12. Activated carbon filter element; 13. Drain pipe; 14. Sewage inlet pipe. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Please refer to Figure 1-Figure 3 The utility model is a multi-stage filtering device for a sewage pipe network, comprising: a sewage treatment tank 1, a sealing sleeve 2 is provided on one side of the upper end of the sewage treatment tank 1, a filter cartridge 3 is connected to the inside of the sealing sleeve 2 through a bearing, a spiral blade 301 is provided inside the filter cartridge 3, a support rod 4 is welded to the inside of the filter cartridge 3 close to the sealing sleeve 2, the support rod 4 is fixedly connected to a rotating rod 5, a motor 6 is fixedly installed on the side of the upper end of the sewage treatment tank 1 facing the rotating rod 5, a first filter chamber 7 is provided on one side of the sewage treatment tank 1 below the filter cartridge 3, and a second filter chamber 11 is provided on one side of the sewage treatment tank 1 below the first filter chamber 7.

[0020] Combine Figure 2 and Figure 3 As shown, a drawer frame 8 is inserted into the first filter chamber 7, so as to facilitate the later disassembly and replacement of the quartz sand 10 in the drawer frame 8. A filter cloth 9 is provided on the bottom side of the drawer frame 8. The drawer frame 8 is filled with quartz sand 10 on one side above the filter cloth 9. The bottom of the drawer frame 8 is a mesh structure. The outer end of the drawer frame 8 is connected to the outside of the sewage treatment tank 1 by screws. An activated carbon filter element 12 is inserted into the second filter chamber 11, so as to facilitate the replacement of the activated carbon filter element 12. The activated carbon filter element 12 is located outside the sewage treatment tank 1 and is screwed to a sealing plate at one end.

[0021] Among them, the output end of the motor 6 is connected to the rotating rod 5, the filter cartridge 3 is a mesh structure on the outer side of the circumference facing the drawer frame 8, and the end of the filter cartridge 3 away from the sealing sleeve 2 is connected to the inside of the sewage treatment tank 1 through a bearing. A drain pipe 13 is provided on one side of the bottom end of the sewage treatment tank 1, and the bottom side of the interior of the sewage treatment tank 1 is an inclined surface, so as to facilitate the discharge of treated water. A sewage inlet pipe 14 is provided on the upper end of the sewage treatment tank 1 on one side of the sealing sleeve 2, and the filter cartridge 3 is a truncated cone tubular structure.

[0022] Specifically, when the present invention is used, the operating motor 6 drives the rotating rod 5 to rotate, and then the rotating rod 5 rotates together with the filter cartridge 3 through the support rod 4. At this time, the sewage enters the filter cartridge 3 through the sewage inlet pipe 14, and then the larger impurities in the sewage are transported to the port and discharged through the rotating filter cartridge 3 in conjunction with the internal spiral blades 301, thereby effectively avoiding the accumulation of impurities inside the filter cartridge 3. The filtered water falls on the quartz sand 10, is filtered again by the quartz sand 10 and falls on the activated carbon filter element 12, and then the sewage can be further filtered and processed by the activated carbon filter element 12, thereby achieving the effect of multi-stage filtration of sewage.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0024] Other parts of the present invention that are not described in detail belong to the prior art and will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-stage filtration device for a sewage pipe network, comprising: A sewage treatment tank (1) is characterized in that a sealing sleeve (2) is provided on one side of the interior of the upper end of the sewage treatment tank (1), a filter cartridge (3) is connected to the interior of the sealing sleeve (2) via a bearing, a spiral blade (301) is provided on the interior of the filter cartridge (3), a support rod (4) is welded to the interior of the filter cartridge (3) at one end close to the sealing sleeve (2), the support rod (4) is fixedly connected to a rotating rod (5), a motor (6) is fixedly installed on the side of the upper end of the sewage treatment tank (1) facing the rotating rod (5), a first filter chamber (7) is provided on the side of the sewage treatment tank (1) below the filter cartridge (3), and a second filter chamber (11) is provided on the side of the sewage treatment tank (1) below the first filter chamber (7).

2. A multi-stage filtration device for a sewage pipe network according to claim 1, characterized in that: A drawer frame (8) is inserted into the first filter chamber (7), a filter cloth (9) is provided on the bottom side of the drawer frame (8), and a side of the drawer frame (8) located above the filter cloth (9) is filled with quartz sand (10).

3. A multi-stage filtration device for a sewage pipe network according to claim 2, characterized in that: The bottom of the drawer frame (8) is a mesh structure, and the outer end of the drawer frame (8) is connected to the outside of the sewage treatment box (1) by screws.

4. A multi-stage filtration device for a sewage pipe network according to claim 1, characterized in that: An activated carbon filter element (12) is inserted into the interior of the second filter chamber (11), and one end of the activated carbon filter element (12) is located outside the sewage treatment tank (1) and is screwed to a sealing plate.

5. The multi-stage filtering device for a sewage pipe network according to claim 1, characterized in that: The output end of the motor (6) is connected to the rotating rod (5); the filter cartridge (3) is a mesh structure on the outer side of the circumference facing the drawer frame (8); and the end of the filter cartridge (3) away from the sealing sleeve (2) is connected to the interior of the sewage treatment box (1) through a bearing.

6. The multi-stage filtering device for a sewage pipe network according to claim 1, characterized in that: A drainage pipe (13) is provided on one side of the bottom end of the sewage treatment tank (1), and the bottom side inside the sewage treatment tank (1) is an inclined surface.

7. The multi-stage filtration device for a sewage pipe network according to claim 1, characterized in that: The upper end of the sewage treatment box (1) is located on one side of the sealing sleeve (2) and is provided with a sewage inlet pipe (14), and the filter cartridge (3) is a truncated cone-shaped tubular structure.

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