Sewage treatment filtering system

Abstract

The utility model discloses a sewage treatment filtering system which comprises a shell and a filtering ring body driven to rotate in the shell, the outer partition plate is arranged on the outer wall of the filtering ring body and moves in the radial direction of the filtering ring body, the outer partition plate comprises an elastic movable part and a scraping plate used for scraping the inner wall of the machine shell, and the section of the elastic movable part is in an n shape; the blowing and impurity removing assembly is arranged on the bottom side of the machine shell and comprises a first air outlet plate arranged in a rotating mode and a torsional spring used for keeping the first air outlet plate at a preset angle. According to the sewage treatment filtering system, elastic potential energy of the elastic movable part is released to drive the outer partition plate to move in a small amplitude in the radial direction of the filtering ring body, impurities on the outer partition plate are shaken off, meanwhile, the first air outlet plate is driven to rotate by a certain amplitude and restore to a preset angle under the elastic effect of the torsional spring, and air discharged by the first air outlet plate is in a swinging shape; and air is blown to the side wall of the outer partition plate in the swinging process, and the air blowing and impurity removing range is widened.

Description

Technical Field

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

[0002] In conjunction with publication number CN112915627A, publication date 2021-06-08, a filtration system and a filtration method for sewage treatment are disclosed.

[0003] In the prior art including the above patent, sewage is discharged to the top center of the filter ring through the sewage pipe, and the filter ring, the outer partition and the side limit constitute the filter space. The water in the filter space is sucked into the inner water collection box through the filter hole and discharged through the negative pressure water suction pipe. The filtered solid particle impurities remain in the corresponding filter space. The outer partition and the side have a blocking effect on the sewage, so that the sewage inside is completely filtered, and then the gas blown out through the air outlet at the outer bottom position of the filter ring body blows away the last remaining solid particle impurities. The above technology removes the solid particles in the sewage by rotating the filter ring, but the solid particles in the sewage are wet after being infiltrated by water. When the outer partition blocks the sewage, the wet impurities will adhere to the surface of the outer partition. The outer partition is perpendicular to the filter ring. When the air is blown by the air outlet, the surfaces on both sides with wet impurities attached are parallel to the outlet direction of the air outlet, so that the air outlet has a poor impurity removal effect on the outer partition. Utility Model Content

[0004] The purpose of the utility model is to provide a sewage treatment and filtering system to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage treatment and filtering system, comprising a casing and a filter ring body driven to rotate inside the casing;

[0006] An outer baffle plate is arranged on the outer wall of the filter ring body and moves radially along the filter ring body, and comprises an elastic movable part and a scraper for scraping the inner wall of the casing, wherein the cross section of the elastic movable part is in the shape of a Chinese character "J";

[0007] The air blowing and impurity removal component arranged on the bottom side of the casing comprises a first air outlet plate which is rotatably arranged and a torsion spring used for keeping the first air outlet plate at a predetermined angle.

[0008] Preferably, the center line of the outer partition is perpendicular to the outer wall of the filter ring body.

[0009] Preferably, a transmission rod is provided on the rotating shaft of the first air outlet plate, and the transmission rod is pushed by the outer partition plate to rotate.

[0010] Preferably, the air blowing and impurity removal assembly further comprises a second rotatable air outlet plate which moves synchronously with the first air outlet plate through a transmission assembly.

[0011] Preferably, the transmission assembly comprises a first gear disposed on the rotating shaft of the second air outlet plate;

[0012] A second gear connected to the first air outlet plate via a transmission belt, and meshing with the second gear for transmission;

[0013] The rotation direction of the second air outlet plate is opposite to that of the first air outlet plate.

[0014] Preferably, at least two baffles are arranged on the outer partition in a linear array, and the first surfaces of the baffles are all curved surfaces, two adjacent baffles enclose an inclined vent, and a filter is arranged between the baffles.

[0015] Preferably, the second surface of the baffle and the filter screen form an upper concave surface.

[0016] In the above technical scheme, a sewage treatment filtration system provided by the utility model has the following beneficial effects: the elastic potential energy of the elastic movable part is released to drive the outer partition to move slightly along the radial direction of the filter ring body, so that impurities on the outer partition are shaken off, and at the same time, the first air outlet plate is driven to rotate a certain amplitude and restore the predetermined angle under the elastic action of the torsion spring, so that the air outlet of the first air outlet plate is in a swinging shape, and air is blown to the side wall of the outer partition during the swinging process, thereby expanding the range of air blowing and impurity removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A three-dimensional schematic diagram of the entire housing provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the structure of the filter ring body and the outer partition provided in the embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure of the outer partition provided in the embodiment of the utility model;

[0021] Figure 4 A schematic diagram of an air blowing and impurity removal component provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of an air blowing and impurity removal component provided in an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Casing; 2. External partition; 21. Scraper; 22. Elastic movable part; 23. Baffle; 24. Filter; 25. Upper concave surface; 3. Air blowing and impurity removal assembly; 31. First air outlet plate; 32. Transmission rod; 33. Second air outlet plate; 34. Transmission assembly. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-5 As shown, a sewage treatment and filtering system comprises a housing 1 and a filtering ring body driven to rotate inside the housing;

[0027] An outer baffle 2 is arranged on the outer wall of the filter ring body and moves radially along the filter ring body, and includes an elastic movable portion 22 and a scraper 21 for scraping the inner wall of the housing 1. The cross section of the elastic movable portion 22 is in a "J" shape;

[0028] The air blowing and impurity removal assembly 3 disposed at the bottom side of the housing 1 comprises a first air outlet plate 31 rotatably disposed and a torsion spring for maintaining the first air outlet plate 31 at a predetermined angle.

[0029] Specifically, a drain port is provided on the top of the casing 1, and sewage enters the casing 1 through the drain port and is filtered by the filter ring body. At the same time, the filter ring body drives the outer baffle plate 2 to rotate, so that the scraper plate 21 abuts against the casing 1 to scrape off some impurities on the inner wall of the casing 1, and the reaction force of the casing 1 on the scraper plate 21 causes the elastic movable portion 22 to be driven to undergo elastic deformation until the outer baffle plate 2 rotates to the bottom side of the casing 1, at which time the outer baffle plate 2 no longer abuts against the inner wall of the casing 1, so that the elastic potential energy of the elastic movable portion 22 is released and drives the outer baffle plate 2 to rotate to the bottom side of the casing 1. The plate 2 moves slightly along the radial direction of the filter ring body to shake off the impurities on the outer partition 2. In addition, since the first air outlet plate 31 is rotatably arranged on the bottom side of the casing 1, when the first air outlet plate 31 blows air, the ejected gas contacts the outer partition 2 and the outer wall of the filter ring body, and the generated air pressure reacts on the first air outlet plate 31, driving the first air outlet plate 31 to rotate a certain amplitude and restore the predetermined angle under the elastic action of the torsion spring, so that the air outlet of the first air outlet plate 31 is in a swinging shape, and blows air to the side wall of the outer partition 2 during the swinging process.

[0030] The filter ring body may be driven to rotate by a motor, or by pushing the outer partition plate 2 with water pressure to achieve the rotation of the filter ring body, or by other driving methods known to those skilled in the art.

[0031] In the above technology, the elastic potential energy of the elastic movable part 22 is released to drive the outer partition plate 2 to move slightly along the radial direction of the filter ring body, so that impurities on the outer partition plate 2 are shaken off, and at the same time, the first air outlet plate 31 is driven to rotate a certain amplitude and restore the predetermined angle under the elastic action of the torsion spring, so that the air outlet of the first air outlet plate 31 is in a swinging state, and air is blown to the side wall of the outer partition plate 2 during the swinging process, thereby expanding the range of air blowing and impurity removal.

[0032] As an embodiment further provided by the present invention, the center line of the outer partition 2 is perpendicular to the outer wall of the filter annulus.

[0033] Specifically, since the cross-section of the filter ring body is a convex arc surface, the center line of the outer partition 2 is perpendicular to the filter ring body, so that the elastic movable part 22 is an arc-shaped hollow structure that fits the outer wall of the filter ring body. When wet impurities are attached to both sides of the outer partition 2, since the cross-section of the elastic movable part 22 is in the shape of a "J" and both ends are the lowest points, a triangular arc surface is formed with both ends extending toward the filter ring body, making it easier for wet impurities to flow toward the triangular arc surface, thereby guiding them to the filter ring body.

[0034] As another embodiment further provided by the present invention, a transmission rod 32 is provided on the rotating shaft of the first air outlet plate 31, and the transmission rod 32 is pushed by the outer partition plate 2 to rotate.

[0035] Specifically, an arc-shaped track for the transmission rod 32 to rotate is provided on the casing 1. When the outer partition 2 rotates to the bottom side of the casing 1, the elastic potential energy of the elastic movable part 22 is released, causing the outer partition 2 to displace a short distance along the radial direction of the filter ring body. The free end of the outer partition 2 and the transmission rod 32 abut against each other and drive the transmission rod 32 to rotate along the arc-shaped track by a certain angle. Subsequently, the outer partition 2 and the transmission rod 32 are no longer in contact, and the transmission rod 32 returns to a predetermined angle under the elastic force of the torsion spring, and the predetermined angle is parallel to the vertical direction.

[0036] As another embodiment further provided by the present invention, the air blowing and impurity removal component 3 further includes a second air outlet plate 33 which is rotatably arranged and which moves synchronously with the first air outlet plate 31 through a transmission component 34 .

[0037] Specifically, when the first air outlet plate 31 rotates, the second air outlet plate 33 is driven to rotate synchronously through the transmission component 34. The rotation of the two air outlet plates increases the jet range and better achieves the impurity removal effect. The transmission component 34 can be a connecting rod structure, or a transmission belt, or a transmission structure known to technical personnel in this field.

[0038] As another embodiment further provided by the present invention, the transmission assembly 34 includes a first gear disposed on the rotating shaft of the second air outlet plate 33;

[0039] A second gear connected to the first air outlet plate 31 via a transmission belt, and meshing with the second gear for transmission;

[0040] The rotation direction of the second air outlet plate 33 is opposite to that of the first air outlet plate 31 .

[0041] Specifically, when the first air outlet plate 31 rotates, the second gear is driven to rotate in the same direction synchronously through the transmission belt. The second gear drives the first gear and the second air outlet plate 33 to rotate through meshing transmission. At this time, the rotation direction of the second air outlet plate 33 is opposite to that of the first air outlet plate 31. The first air outlet plate 31 and the second air outlet plate 33 rotate toward the center line of the filter ring body at the same time, and the filter ring body and the outer partition plate 2 are sprayed from both sides to remove impurities, thereby expanding the impurity removal range.

[0042] As another embodiment further provided by the present invention, at least two baffles 23 are arranged on the outer partition 2 in a linear array, and the first surfaces of the baffles 23 are all arc surfaces, two adjacent baffles 23 enclose an inclined vent, and a filter 24 is arranged between the baffles 23.

[0043] Specifically, since the outer baffle 2 is vertically arranged on the filter ring body, the surface of the filter screen 24 intercepts some impurities, and there is an angle between the extension direction of the inclined vent surrounded by the baffle 23 and the outer baffle 2, so that the air generated during the rotation of the outer baffle 2 flows through the vent, accelerating the drying of wet impurities on the outer baffle 2, and when the outer baffle 2 rotates to the bottom side of the casing 1, the airflow generated by the first air outlet plate 31 extends to the vents on both sides through the scraper 21, generating Figure 4 The flow shown enables wet impurities on the surface of the filter screen 24 to be removed more quickly.

[0044] As another embodiment further provided by the present invention, the second surface of the baffle 23 and the filter screen 24 form an upper concave surface 25 .

[0045] Specifically, since the second surface of the baffle 23 and the filter screen 24 form an upper concave surface 25, when the outer partition 2 rotates to the water outlet, the water will fall on the upper concave surface 25 and splash outward. The impact force generated by the splashing will carry away some impurities, avoiding excessive wet impurities from remaining on the outer partition 2.

[0046] Working principle: A drain port is provided on the top of the casing 1, through which sewage enters the casing 1 and is filtered by the filter ring body. At the same time, the motor drives the filter ring body to rotate the outer partition plate 2, so that the scraper 21 contacts the casing 1 to scrape off some impurities on the inner wall of the casing 1. When wet impurities are attached to both sides of the outer partition plate 2, the cross-section of the elastic movable portion 22 is in the shape of a "J", and both ends are the lowest points, forming a triangular arc surface extending toward the filter ring body at both ends, so that wet impurities are more likely to flow toward the triangular arc surface, thereby being diverted to the filter ring body. The air generated during the rotation of the outer partition plate 2 circulates through the vents to accelerate the drying of the wet impurities on the outer partition plate 2; when the outer partition plate 2 rotates to the bottom side of the casing 1, the elastic potential energy of the elastic movable portion 22 is released, causing the outer partition plate 2 to move a short distance along the radial direction of the filter ring body. The outer partition plate 2 is abutted against the free end of the transmission rod 32 and drives the transmission rod 32 to rotate a certain angle along the arc track. Then the outer partition plate 2 and the transmission rod 32 are no longer in contact. The transmission rod 32 returns to a predetermined angle under the elastic force of the torsion spring. When the first air outlet plate 31 rotates, the second gear is driven to rotate in the same direction through the transmission belt. The second gear drives the first gear and the second air outlet plate 33 to rotate through meshing transmission. At this time, the rotation direction of the second air outlet plate 33 is opposite to that of the first air outlet plate 31. The first air outlet plate 31 and the second air outlet plate 33 rotate toward the center line of the filter ring body at the same time, and the filter ring body and the outer partition plate 2 are sprayed from both sides to remove impurities, so that the impurity removal range is expanded. The airflow generated by the first air outlet plate 31 extends to the vents on both sides through the scraper 21, generating Figure 4 The flow shown enables wet impurities on the surface of the filter screen 24 to be removed more quickly.

[0047] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sewage treatment and filtration system, characterized in that: It comprises a casing (1) and a filter ring body driven to rotate inside the casing; An outer baffle (2) disposed on the outer wall of the filter ring body and movable in the radial direction of the filter ring body, comprising an elastic movable portion (22) and a scraper (21) for scraping the inner wall of the housing (1), wherein the cross section of the elastic movable portion (22) is in the shape of a Chinese character “∠”; An air blowing and impurity removal component (3) arranged on the bottom side of the casing (1) comprises a rotatably arranged first air outlet plate (31) and a torsion spring used to keep the first air outlet plate (31) at a predetermined angle.

2. A sewage treatment and filtration system according to claim 1, characterized in that: The center line of the outer partition (2) is perpendicular to the outer wall of the filter ring body.

3. A sewage treatment and filtration system according to claim 1, characterized in that: A transmission rod (32) is arranged on the rotating shaft of the first air outlet plate (31), and the transmission rod (32) is pushed by the outer partition plate (2) to rotate.

4. A sewage treatment and filtration system according to claim 3, characterized in that: The air blowing and impurity removal component (3) further comprises a second air outlet plate (33) which is rotatably arranged and which moves synchronously with the first air outlet plate (31) via a transmission component (34).

5. A sewage treatment and filtration system according to claim 4, characterized in that: The transmission assembly (34) comprises a first gear arranged on the rotating shaft of the second air outlet plate (33); A second gear connected to the first air outlet plate (31) via a transmission belt, and meshing with the second gear for transmission; The rotation direction of the second air outlet plate (33) is opposite to that of the first air outlet plate (31).

6. A sewage treatment and filtration system according to claim 1, characterized in that: At least two baffles (23) are arranged on the outer partition plate (2) in a linear array, and the first surfaces of the baffles (23) are all arc surfaces, two adjacent baffles (23) enclose an inclined vent, and a filter screen (24) is arranged between the baffles (23).

7. A sewage treatment and filtration system according to claim 6, characterized in that: The second surface of the baffle (23) and the filter screen (24) form an upper concave surface (25).

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