Sewage pretreatment filtering system

Abstract

The utility model discloses a sewage pretreatment filtering system which comprises a filtering box and a net cylinder, a cylinder pipe is installed in the filtering box, the cylinder pipe is arranged in an inclined mode, a floating material spiral blade is installed in the cylinder pipe, a first motor in transmission connection with the floating material spiral blade is installed at the right end of the cylinder pipe, and a discharging pipe is arranged on the lower surface of the cylinder pipe. The net barrel is rotatably connected with the left end of the barrel pipe, the floating material spiral blade extends into the net barrel, a linkage rod is arranged in the net barrel, the floating material spiral blade is connected with the linkage rod, a scraping plate corresponding to the net barrel is arranged in the filter box, the floating material spiral blade discharges floating materials along the barrel pipe, and the floating material spiral blade is connected with the linkage rod. The first motor drives the net barrel to rotate through the floating material spiral blade, when attachments exist on the surface of the net barrel, the rotating net barrel makes contact with the scraping plate, the attachments on the net barrel can be cleaned, frequent manual cleaning is not needed, and filtering of the sewage cannot be delayed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage pretreatment, in particular to a sewage pretreatment filtering system. Background Art

[0002] Sewage pretreatment equipment can effectively treat urban domestic sewage, industrial wastewater, etc., prevent sewage and pollutants from directly flowing into the water, and improve the ecological environment. Existing sewage treatment equipment uses grilles with different mesh sizes to filter debris in the water of different sizes, and then separate the debris. However, after the grille has been used for too long, a large amount of debris accumulates on its surface, resulting in increased resistance to water passing through the grille and gradually worsening filtration efficiency. At this time, the user needs to manually clean or replace the filter screen. If the water is not clear enough, cleaning is more inconvenient and will also delay the pretreatment of sewage. Utility Model Content

[0003] The purpose of the utility model is to provide a sewage pretreatment filtering system to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a sewage pretreatment filtration system, comprising a filter box, a tube installed inside the filter box, and the tube is arranged obliquely, a floating material spiral blade is installed inside the tube, a first motor connected to the floating material spiral blade is installed at the right end of the tube, a discharge pipe is provided on the lower surface of the tube, and the floating material spiral blade is used to transport impurities out of the filter box;

[0005] The net cylinder is rotatably connected to the left end of the cylinder tube, the floating material spiral blade extends into the inside of the net cylinder, a linkage rod is arranged inside the net cylinder, the floating material spiral blade is connected to the linkage rod, a scraper corresponding to the net cylinder is arranged inside the filter box, and the stains on the surface of the net cylinder are scraped off by the scraper when the net cylinder rotates, so that the net cylinder can be automatically cleaned without frequent manual cleaning;

[0006] The guide plate is fixedly connected to the inner wall of the filter box, and the guide plate is inserted into the mesh cylinder so that all floating impurities in the sewage enter the mesh cylinder, and the floating impurities in the water can be separated.

[0007] Furthermore, a sedimentation conveying pipe is installed on the lower surface of the filter box, and the sedimentation conveying pipe is connected to the filter box. A sedimentation spiral blade is installed inside the sedimentation conveying pipe. A second motor is installed on the surface of the sedimentation conveying pipe and is transmission-connected to the sedimentation spiral blade. A slag discharge pipe is provided on the lower surface of the sedimentation conveying pipe. Impurities settled at the bottom of the filter box enter the sedimentation conveying pipe and are discharged through the sedimentation spiral blade.

[0008] Furthermore, a water collecting tank connected to the filter box is installed on the lower surface of the filter box, an inspection cover is rotatably connected to the upper surface of the water collecting tank, and a sewage pipe is provided on the lower surface of the water collecting tank. The filtered sewage enters the water collecting tank, and some smaller impurities fall to the bottom of the water collecting tank and are discharged through the sewage pipe.

[0009] A support seat is provided inside the filter box, and the support seat is rotatably connected to the net cylinder to provide auxiliary support to the net cylinder and improve the stability of the rotation of the net cylinder.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) The sewage is sent into the filter box through the water inlet pipe. After being filtered by the mesh cylinder, the sewage flows into the collection tank. All the floating objects in the sewage enter the mesh cylinder. The floating material spiral blades discharge the floating objects along the cylinder tube, separating the floating objects in the sewage and treating them separately, which will not affect the treatment of the sewage.

[0012] (2) When the sediment in the sewage falls to the bottom of the filter box, the sediment flows into the slag discharge pipe, and the sediment spiral blade rotates to discharge the sediment along the sedimentation conveying pipe, separating the sediment in the sewage and treating it separately, which will not affect the treatment of the sewage.

[0013] (3) The first motor drives the mesh drum to rotate through the floating material spiral blade. When there are attachments on the surface of the mesh drum, the rotating mesh drum contacts the scraper to clean the attachments on the mesh drum. Frequent manual cleaning is unnecessary and the filtration of sewage will not be delayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a cross-sectional view of the water collection pool of the utility model.

[0017] In the figure: 1. filter box; 2. water inlet pipe; 3. sealing cover; 4. bobbin; 5. first motor; 6. discharge pipe; 7. sedimentation conveying pipe; 8. slag discharge pipe; 9. second motor; 10. collecting tank; 11. sewage pipe; 12. net cylinder; 13. trumpet pipe; 14. guide plate; 15. floating material spiral blade; 16. support seat; 17. sinking material spiral blade; 18. linkage rod; 19. inspection cover; 20. scraper. DETAILED DESCRIPTION

[0018] 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.

[0019] Example:

[0020] See also Figure 1-3 The utility model provides a technical solution: a sewage pretreatment filtration system, comprising a filter box 1, a tube 4 is installed inside the filter box 1, and the tube 4 is arranged obliquely, a floating material spiral blade 15 is installed inside the tube 4, a first motor 5 connected to the floating material spiral blade 15 is installed at the right end of the tube 4, and a discharge pipe 6 is provided on the lower surface of the tube 4;

[0021] The bobbin 4 is lower on the left and higher on the right, and the first motor 5 drives the floating material spiral blade 15 to rotate. When floating impurities enter the bobbin 4, the floating impurities are automatically knocked out of the filter box 1 by the driving force of the floating material spiral blade 15.

[0022] The net cylinder 12 is rotatably connected to the left end of the cylinder 4, the floating material spiral blade 15 extends into the net cylinder 12, a linkage rod 18 is provided inside the net cylinder 12, the floating material spiral blade 15 is connected to the linkage rod 18, and a scraper 20 corresponding to the net cylinder 12 is provided inside the filter box 1. The net cylinder 12 and the floating material spiral blade 15 rotate synchronously, which can ensure that the scraper 20 fully cleans the net cylinder 12;

[0023] The grid is bent to form a mesh tube 12. The size of the holes on the mesh tube 12 can be determined according to the size of the floating objects. The scraper 20 is made of elastic material so that the scraper 20 can clean the mesh tube 12 and prevent the mesh tube 12 and the scraper 20 from being damaged.

[0024] The guide plate 14 is fixedly connected to the inner wall of the filter box 1 and inserted into the mesh cylinder 12. The guide plate 14 guides floating objects into the mesh cylinder 12 to prevent the floating objects from leaking out.

[0025] In this embodiment, if Figure 2 As shown, a sedimentation conveying pipe 7 is installed on the lower surface of the filter box 1, and the sedimentation conveying pipe 7 is connected to the filter box 1, so that the sediment can fall smoothly into the sedimentation conveying pipe 7, and the lower part of the filter box 1 is conical to guide the sediment to flow into the sedimentation conveying pipe 7;

[0026] A sedimentation spiral blade 17 is installed inside the sedimentation conveying pipe 7, and a second motor 9 is installed on the surface of the sedimentation conveying pipe 7, which is transmission-connected to the sedimentation spiral blade 17. A slag discharge pipe 8 is provided on the lower surface of the sedimentation conveying pipe 7. The sediment discharged by the sedimentation spiral blade 17 is discharged through the slag discharge pipe 8, and the sediment can be received by a material receiving trolley or other container.

[0027] In this embodiment, if Figure 1 and Figure 3 As shown, a water collecting tank 10 connected to the filter box 1 is installed on the lower surface of the filter box 1, and an inspection cover 19 is rotatably connected to the upper surface of the water collecting tank 10. A sewage pipe 11 is provided on the lower surface of the water collecting tank 10. By opening the inspection cover 19, it can be checked whether the sewage is filtered clean. The sewage can also be subjected to secondary treatment in the water collecting tank 10. The particulate impurities in the sewage can be precipitated by using a flocculant and discharged through the sewage pipe 11.

[0028] In this embodiment, if Figure 1 and Figure 2 As shown, the filter box 1 is installed with a cover 3, and a water inlet pipe 2 is provided on the left side of the filter box 1. The cover 3 can be opened to manually clean the net cylinder 12, and the sewage is sent to the filter box 1 through the water inlet pipe 2.

[0029] In this embodiment, if Figure 2 As shown, a trumpet tube 13 is fixedly connected to the inner wall of the net tube 12, and the floating objects are guided into the tube 4 through the trumpet tube 13, thereby improving the discharge efficiency of the floating objects.

[0030] In this embodiment, if Figure 2 As shown, a support seat 16 is provided inside the filter box 1 , and the support seat 16 is rotatably connected to the mesh drum 12 to ensure that the mesh drum 12 does not shake during rotation, thereby reducing the wear of the mesh drum 12 .

[0031] Specifically, when in use, sewage enters the filter box 1 through the water inlet pipe 2, and then flows into the water collection tank 10 after passing through the net cylinder 12, so that floating objects in the sewage are collected by the net cylinder 12, and the first motor 5 drives the floating material spiral blade 15 to rotate, and the floating material spiral blade 15 cooperates with the cylinder 4 to transport the floating objects out, and the floating material spiral blade 15 drives the net cylinder 12 to rotate through the linkage rod 18, and when the net cylinder 12 contacts the scraper 20, the rotating net cylinder 12 is cleaned by the scraper 20, and frequent manual cleaning is not required;

[0032] When the sediment in the sewage falls to the bottom of the filter box 1, it flows toward the sedimentation conveying pipe 7. The second motor 9 drives the sedimentation spiral blade 17 to rotate. The sedimentation spiral blade 17 cooperates with the sedimentation conveying pipe 7 to discharge the sediment and separate the sediment and floating objects in the sewage.

[0033] 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 sewage pretreatment filtration system, characterized in that: include: A filter box (1), wherein a tube (4) is installed inside the filter box (1), and the tube (4) is arranged in an inclined manner, a floating material spiral blade (15) is installed inside the tube (4), a first motor (5) drivingly connected to the floating material spiral blade (15) is installed at the right end of the tube (4), and a discharge pipe (6) is provided on the lower surface of the tube (4); A net cylinder (12), the net cylinder (12) is rotatably connected to the left end of the cylinder tube (4), the floating material spiral blade (15) extends into the inside of the net cylinder (12), a linkage rod (18) is provided inside the net cylinder (12), the floating material spiral blade (15) is connected to the linkage rod (18), and a scraper (20) corresponding to the net cylinder (12) is provided inside the filter box (1); A guide plate (14), wherein the guide plate (14) is fixedly connected to the inner wall of the filter box (1), and the guide plate (14) is inserted into the interior of the net cylinder (12).

2. A sewage pretreatment filtration system according to claim 1, characterized in that: A sedimentation conveying pipe (7) is installed on the lower surface of the filter box (1), and the sedimentation conveying pipe (7) is connected to the filter box (1). A sedimentation spiral blade (17) is installed inside the sedimentation conveying pipe (7). A second motor (9) connected to the sedimentation spiral blade (17) is installed on the surface of the sedimentation conveying pipe (7). A slag discharge pipe (8) is provided on the lower surface of the sedimentation conveying pipe (7).

3. A sewage pretreatment filtration system according to claim 1, characterized in that: A water collecting tank (10) connected to the filter box (1) is installed on the lower surface of the filter box (1), an inspection cover (19) is rotatably connected to the upper surface of the water collecting tank (10), and a sewage discharge pipe (11) is provided on the lower surface of the water collecting tank (10).

4. A sewage pretreatment filtration system according to claim 1, characterized in that: The filter box (1) is provided with a sealing cover (3), and a water inlet pipe (2) is provided on the left side of the filter box (1).

5. A sewage pretreatment filtration system according to claim 1, characterized in that: The inner wall of the net cylinder (12) is fixedly connected with a trumpet tube (13).

6. A sewage pretreatment filtration system according to claim 1, characterized in that: A support seat (16) is provided inside the filter box (1), and the support seat (16) is rotatably connected to the net cylinder (12).

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