Multi-stage filtering structure for sewage treatment construction

Abstract

The utility model discloses a multistage filter structure for sewage treatment construction, which comprises a tank body, a water outlet pipe fixedly mounted on the outer side of the tank body, a filter screen fixedly mounted on the inner side of the tank body, a fiber textile cloth filter layer fixedly mounted on the inner side of the tank body, and a sponge filter layer fixedly mounted on the inner side of the tank body. An activated carbon filter layer is fixedly mounted on the inner side of the tank body, and the fiber textile cloth filter layer, the sponge filter layer and the activated carbon filter layer are distributed at equal intervals from top to bottom relative to the inner side of the tank body. According to the multi-stage filtering structure for sewage treatment construction, the filter screen is mounted on the inner side of the tank body, so that household garbage and large-particle solid garbage in sewage are intercepted, and then the sewage flowing downwards through the filter holes sequentially enters the inner sides of the fiber textile fabric filter layer, the sponge filter layer and the activated carbon filter layer; impurities contained in the sewage are filtered through the corresponding filter layers, so that the sewage is purified to meet the discharge standard and is discharged from the inner side of the tank body through the water outlet pipe.

Description

Technical Field

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

[0002] In cities, there is a lot of domestic sewage and industrial sewage. These sewage cannot be discharged directly into nature after use, which will pollute nature. Therefore, after use, these sewage need to be filtered in multiple stages to clean up the harmful substances inside.

[0003] A municipal construction sewage treatment device with application number CN202021692426.5 comprises an upper filter box and a lower clean water collection box, the upper filter box is placed on the upper part of the lower clean water collection box, the inner cavity of the upper filter box is divided into a coarse filter chamber, a static filter chamber and a fine filter chamber arranged adjacent to each other in sequence by vertically set partition plates I and II, a coarse filter screen is provided at the upper part of the inner cavity of the coarse filter chamber, a manipulator for scraping off large residues on the coarse filter screen is provided at the upper part of the coarse filter chamber, the sewage treated by the coarse filter chamber is pumped to the static filter chamber by a pumping pump for static sedimentation filtration, the sediment at the lower part of the inner cavity of the coarse filter chamber and the static filter chamber is pumped away by the same sludge suction pump, the fine filter chamber is provided with a multi-stage filter layer, the sewage in the static filter chamber flows slowly through the upper water surface to the fine filter chamber and is filtered through the multi-stage filter layer. The utility model can effectively treat municipal construction sewage, so that the treated sewage meets the purification requirements after treatment.

[0004] The device performs multi-stage filtration treatment on sewage by arranging a coarse filter chamber, a static filter chamber and a fine filter chamber, thereby being able to effectively treat municipal construction sewage and make the treated sewage meet the purification requirements. However, when in use, a large amount of solid waste will accumulate on the upper end of the uppermost coarse filter chamber. If these solid wastes accumulate on the uppermost end of the filter net, the filter holes on the inner side of the filter net will be blocked, thereby affecting the filtering effect of the filter net on sewage.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original multi-stage filtration structure used in sewage treatment construction. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-stage filtering structure for sewage treatment construction, so as to solve the problem proposed in the above-mentioned background technology that a large amount of solid waste will accumulate on the upper end of the uppermost coarse filter cavity during use. If these solid wastes accumulate on the uppermost end of the filter net, the filter holes on the inner side of the filter net will be blocked, thereby affecting the filtering effect of the filter net on sewage.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage filtration structure for sewage treatment construction, comprising a pool body, and a water outlet pipe is fixedly installed on the outside of the pool body, a filter screen is fixedly installed on the inside of the pool body, and a fiber textile filter layer is fixedly installed on the inside of the pool body, a sponge filter layer is fixedly installed on the inside of the pool body, and an activated carbon filter layer is fixedly installed on the inside of the pool body, and the fiber textile filter layer, the sponge filter layer and the activated carbon filter layer are equidistantly distributed from top to bottom about the inside of the pool body;

[0008] It also includes: a servo motor is fixedly installed on the outside of the pool body, and the output end of the servo motor passes through the inside of the pool body, a threaded rod is fixedly installed on the output end of the servo motor, and a threaded connector is connected to the outside of the threaded rod, an adjustment plate is fixedly installed on the outside of the threaded connector, and a scraper is fixedly installed on the bottom of the adjustment plate, a fixed rod is fixedly installed on the inside of the pool body, and a sliding block is nested on the outside of the fixed rod, and the sliding block is fixedly installed on the outside of the adjustment plate.

[0009] Preferably, the threaded connector is threadedly connected to the threaded rod through a threaded hole opened on the inner side, and the threaded rod and the fixed rod are distributed correspondingly front and back about the midpoint of the pool body; this structure drives the threaded connector with outer threaded connection to move left and right through the rotation of the threaded rod.

[0010] Preferably, the bottom of the scraper is in contact with the upper surface of the filter screen; in this structure, the bottom of the scraper is in contact with the upper surface of the filter screen, and garbage accumulated on the upper end of the filter screen can be scraped off by the bottom of the scraper.

[0011] Preferably, a coaxial shaft is fixedly installed on the outside of the pool body, and a splash-proof cover is nested on the outside of the coaxial shaft, and the splash-proof cover is fitted with the upper surface of the pool body, and a water inlet is fixedly installed on the inside of the splash-proof cover; this structure can rotate the splash-proof cover by the coaxial shaft so that the splash-proof cover is fitted on the upper end of the pool body.

[0012] Preferably, the splash-proof cover plate has limit holes at both ends, and the inner sides of the limit holes are snap-fitted with limit rods; this structure can fix the splash-proof cover plate to the upper end of the pool body through the snap-fitting of the limit holes with the tail ends of the limit rods.

[0013] Preferably, a fixing plate is fixedly installed on the outside of the pool body, and a telescopic spring is fixedly installed on the outside of the fixing plate. The tail end of the telescopic spring is fixedly connected to a limit rod, and the limit rod passes through the inside of the fixing plate. This structure can enable the limit rod to reset itself through the elastic force of the telescopic spring.

[0014] Preferably, the limiting rod forms an elastic structure with the fixing plate through a telescopic spring.

[0015] Compared with the prior art, the utility model has the beneficial effect that the multi-stage filtering structure for sewage treatment construction is provided with:

[0016] 1. Multi-stage filtration structure, by installing a filter net on the inside of the pool body, domestic garbage and large particles of solid garbage in the sewage are intercepted. The sewage flowing downward through the filter hole then enters the fiber textile filter layer, sponge filter layer, and activated carbon filter layer in turn. The impurities contained in the sewage are filtered through the corresponding filter layer, purified to meet the discharge standards and discharged from the inside of the pool body through the outlet pipe;

[0017] 2. Cleaning structure: when a large amount of solid waste accumulates on the upper part of the filter, the servo motor is operated so that the output end of the servo motor drives the threaded rod to rotate. The rotation of the threaded rod drives the threaded connector connected to the outer thread to move left and right, thereby driving the scraper at the bottom of the adjustment plate to move left and right, scraping the waste adhered to the upper part of the filter to both ends, so that the filter holes in the middle part of the filter remain in a through state to filter the sewage;

[0018] Furthermore, when the adjustment plate moves left and right, the sliding block at the bottom thereof will also slide left and right along the outer side of the fixed rod. By sliding the sliding block left and right on the outer side of the fixed rod, the adjustment plate is limited in angle to prevent it from rotating when it moves left and right.

[0019] 3. Anti-splashing structure. When sewage needs to be poured into the inner side of the pool, the anti-splashing cover is first rotated by the concentric axis so that the anti-splashing cover is rotated 90° and fits the outer side of the pool. Then, sewage can be poured into the inner side of the pool through the water inlet. When pouring sewage or cleaning the upper part of the filter, the anti-splashing cover can effectively prevent the sewage inside the pool from splashing and polluting the surrounding environment.

[0020] Furthermore, when the splash-proof cover is attached to the outside of the pool body, the limit rod is automatically reset by the elastic force of the telescopic spring, and the limit rod slides along the inner side of the fixed plate and engages with the corresponding limit hole on the inner side of the splash-proof cover, thereby fixing the splash-proof cover by the engagement of the tail end of the limit rod with the limit hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-sectional structure of the pool body of the utility model;

[0023] Figure 3 This is a schematic diagram of the top view of the pool body of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the adjustment plate of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the scraper of the utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the utility model after the splash-proof cover plate is turned over;

[0027] Figure 7 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. pool body; 2. water outlet pipe; 3. filter screen; 4. fiber textile cloth filter layer; 5. sponge filter layer; 6. activated carbon filter layer; 7. servo motor; 8. threaded rod; 9. threaded connector; 10. adjustment plate; 11. scraper; 12. fixed rod; 13. sliding block; 14. concentric shaft; 15. splashproof cover; 16. water inlet; 17. limit hole; 18. fixed plate; 19. telescopic spring; 20. limit rod. DETAILED DESCRIPTION

[0029] 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.

[0030] The utility model provides the following technical solutions:

[0031] Embodiment 1: Figure 1-Figure 2 The technical solution shown: a multi-stage filtering structure for sewage treatment construction, discloses: a pool body 1, and a water outlet pipe 2 is fixedly installed on the outside of the pool body 1, a filter screen 3 is fixedly installed on the inside of the pool body 1, and a fiber textile filter layer 4 is fixedly installed on the inside of the pool body 1, a sponge filter layer 5 is fixedly installed on the inside of the pool body 1, and an activated carbon filter layer 6 is fixedly installed on the inside of the pool body 1, and the fiber textile filter layer 4, the sponge filter layer 5 and the activated carbon filter layer 6 are equidistantly distributed from top to bottom about the inside of the pool body 1;

[0032] This structure intercepts domestic garbage and large particles of solid garbage in sewage by installing a filter net 3 on the inner side of the pool body 1. The sewage flowing downward through the filter holes then enters the fiber textile filter layer 4, the sponge filter layer 5, and the activated carbon filter layer 6 in sequence. The impurities contained in the sewage are filtered through the corresponding filter layers to purify it to meet the discharge standards and be discharged from the inner side of the pool body 1 through the outlet pipe 2.

[0033] Embodiment 2 is different from Embodiment 1 in that a cleaning and unblocking structure is added on the basis of multi-stage filtration of sewage, such as Figure 1 , Figure 3-Figure 5The figure discloses: a servo motor 7 is fixedly installed on the outside of the pool body 1, and the output end of the servo motor 7 passes through the inside of the pool body 1, a threaded rod 8 is fixedly installed on the output end of the servo motor 7, and a threaded connector 9 is connected to the outside of the threaded rod 8, an adjustment plate 10 is fixedly installed on the outside of the threaded connector 9, and a scraper 11 is fixedly installed on the bottom of the adjustment plate 10, a fixed rod 12 is fixedly installed on the inside of the pool body 1, and a sliding block 13 is nested on the outside of the fixed rod 12, and the sliding block 13 is fixedly installed on the outside of the adjustment plate 10; the threaded connector 9 is threadedly connected to the threaded rod 8 through a threaded hole opened on the inside, and the threaded rod 8 and the fixed rod 12 are distributed front and back correspondingly with respect to the midpoint of the pool body 1; the bottom of the scraper 11 is in contact with the upper surface of the filter screen 3, and a water inlet 16 is fixedly installed on the inside of the splash-proof cover 15;

[0034] In this structure, when a large amount of solid garbage is accumulated on the upper end of the filter screen 3, the servo motor 7 is operated to drive the output end of the servo motor 7 to rotate. The rotation of the threaded rod 8 will drive the threaded connector 9 connected to the outer thread to move left and right. The left and right movement of the threaded connector 9 drives the scraper 11 at the bottom of the adjustment plate 10 to move left and right, and the garbage adhered to the upper end of the filter screen 3 is scraped off to both ends, so that the filter holes in the middle part of the filter screen 3 are kept in a through state to filter the sewage. When the adjustment plate 10 moves left and right, the sliding block 13 at its bottom will also slide left and right along the outer side of the fixed rod 12. The sliding block 13 slides left and right on the outer side of the fixed rod 12 to limit the angle of the adjustment plate 10 to prevent it from rotating when it moves left and right.

[0035] Embodiment 3 is different from Embodiment 1 in that a structure for preventing sewage splashing is added on the basis of multi-stage filtration. Figure 1 , Figure 6 — Figure 7 The figure discloses: a concentric shaft 14 is fixedly installed on the outside of the pool body 1, and a splash-proof cover plate 15 is nested on the outside of the concentric shaft 14, and the splash-proof cover plate 15 is fitted with the upper surface of the pool body 1; a fixing plate 18 is fixedly installed on the outside of the pool body 1, and a telescopic spring 19 is fixedly installed on the outside of the fixing plate 18, and the tail end of the telescopic spring 19 is fixedly connected to a limit rod 20, and the limit rod 20 passes through the inside of the fixing plate 18; the limit rod 20 forms an elastic structure with the fixing plate 18 through the telescopic spring 19;

[0036] When it is necessary to inject sewage into the inner side of the pool body 1, the limit rod 20 is first manually pulled to make the limit rod 20 slide along the outer side of the fixing plate 18, and then the splash cover 15 is rotated by the concentric shaft 14, so that the splash cover 15 is rotated 90° and fits the outer side of the pool body 1, and then the sewage can be injected into the inner side of the pool body 1 through the water inlet 16. When injecting sewage or cleaning the upper end of the filter screen 3, the setting of the splash cover 15 can effectively prevent the sewage inside the pool body 1 from splashing and polluting the surrounding environment, and when the splash cover 15 fits the outer side of the pool body 1, the elastic force of the telescopic spring 19 makes the limit rod 20 reset itself, and the limit rod 20 slides along the inner side of the fixing plate 18 and engages with the corresponding limit hole 17 on the inner side of the splash cover 15, so that the splash cover 15 is fixed by the engagement between the tail end of the limit rod 20 and the limit hole 17.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtration structure for sewage treatment construction, comprising a pool body (1), wherein an outlet pipe (2) is fixedly installed on the outside of the pool body (1), a filter screen (3) is fixedly installed on the inside of the pool body (1), a fiber textile filter layer (4) is fixedly installed on the inside of the pool body (1), a sponge filter layer (5) is fixedly installed on the inside of the pool body (1), and an activated carbon filter layer (6) is fixedly installed on the inside of the pool body (1), and the fiber textile filter layer (4), the sponge filter layer (5) and the activated carbon filter layer (6) are equidistantly distributed from top to bottom with respect to the inside of the pool body (1); Features: Also includes: A servo motor (7) is fixedly mounted on the outside of the pool body (1), and the output end of the servo motor (7) passes through the inside of the pool body (1); a threaded rod (8) is fixedly mounted on the output end of the servo motor (7), and a threaded connector (9) is connected to the outside of the threaded rod (8); an adjustment plate (10) is fixedly mounted on the outside of the threaded connector (9), and a scraper (11) is fixedly mounted on the bottom of the adjustment plate (10); a fixed rod (12) is fixedly mounted on the inside of the pool body (1), and a sliding block (13) is nested on the outside of the fixed rod (12), and the sliding block (13) is fixedly mounted on the outside of the adjustment plate (10).

2. A multi-stage filtration structure for sewage treatment construction according to claim 1, characterized in that: The threaded connector (9) is threadedly connected to the threaded rod (8) via a threaded hole provided on the inner side, and the threaded rod (8) and the fixing rod (12) are arranged in a front-to-back correspondence with respect to the midpoint of the pool body (1).

3. A multi-stage filtration structure for sewage treatment construction according to claim 1, characterized in that: The bottom of the scraper (11) is in contact with the upper surface of the filter screen (3).

4. A multi-stage filtration structure for sewage treatment construction according to claim 1, characterized in that: A coaxial shaft (14) is fixedly mounted on the outside of the pool body (1), and a splash-proof cover plate (15) is nested on the outside of the coaxial shaft (14), and the splash-proof cover plate (15) is in contact with the upper surface of the pool body (1), and a water inlet (16) is fixedly mounted on the inside of the splash-proof cover plate (15).

5. A multi-stage filtration structure for sewage treatment construction according to claim 4, characterized in that: The splash-proof cover plate (15) is provided with limiting holes (17) at both ends, and the inner sides of the limiting holes (17) are snap-fitted and connected with limiting rods (20).

6. The multi-stage filtration structure for sewage treatment construction according to claim 1, characterized in that: A fixing plate (18) is fixedly installed on the outside of the pool body (1), and a telescopic spring (19) is fixedly installed on the outside of the fixing plate (18); the tail end of the telescopic spring (19) is fixedly connected to a limiting rod (20), and the limiting rod (20) passes through the inside of the fixing plate (18).

7. A multi-stage filtration structure for sewage treatment construction according to claim 6, characterized in that: The limiting rod (20) forms an elastic structure with the fixing plate (18) through the telescopic spring (19).

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