Mud scraper for sewage treatment

Abstract

The utility model relates to the technical field of sludge scrapers, and provides a sludge scraper for sewage treatment, which comprises a rack arranged on a sedimentation tank, a rotating part rotationally arranged on the rack, a sludge scraping mechanism arranged on the rotating part and a fixed block arranged on the rotating part and positioned above the sludge scraping mechanism, the telescopic block is movably arranged on the fixed block and is close to or far away from the inner wall of the sedimentation tank after moving; one end of the first elastic piece acts on the first scraper, and the other end of the first elastic piece acts on the telescopic block and is used for providing force for the first scraper to be away from the inner wall of the sedimentation tank. According to the technical scheme, the problem that sludge on the inner wall of the water tank is easy to neglect and cannot be cleaned in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge scrapers, and specifically, to a sludge scraper for sewage treatment. Background Art

[0002] A sludge scraper is a machine that clears sludge from a river channel and is used in large-diameter circular sedimentation tanks in urban sewage treatment plants, water treatment plants, and industrial wastewater treatment to remove the sludge settled at the bottom of the tank and skim the floating scum on the surface of the tank.

[0003] The existing sludge scraper generally has a driving column and a plurality of first scraper assemblies. During the rotation of the first scraper around the driving column, the sludge accumulated in the pool is scraped. However, as the scraping progresses, the sludge on the inner wall of the pool will also slide down to the bottom of the pool under the action of gravity for the scraping process. However, at the same time as the sludge slides down, a part of the sludge will adhere to the inner wall of the pool and not participate in the scraping process, thus affecting the cleaning effect of the sludge in the pool. Summary of the Utility Model

[0004] The utility model provides a sludge scraper for sewage treatment, which solves the problem that the sludge on the inner wall of the pool in the related technology is easily ignored and not cleaned.

[0005] The technical solution of the utility model is as follows:

[0006] A sludge scraper for sewage treatment includes a frame for being arranged on a sedimentation tank, a rotating member rotatably arranged on the frame, and a sludge scraping mechanism arranged on the rotating member. The rotating member is located inside the sedimentation tank, and further includes,

[0007] A fixed block, arranged on the rotating member and located above the sludge scraping mechanism;

[0008] A telescopic block, movably arranged on the fixed block, and the telescopic block moves closer to or away from the inner wall of the sedimentation tank after moving;

[0009] A first scraper and a first elastic member. The first scraper is located on the side of the telescopic block close to the inner wall of the sedimentation tank. One end of the first elastic member acts on the first scraper, and the other end acts on the telescopic block, for providing a force for the first scraper to move away from the inner wall of the sedimentation tank.

[0010] As a further technical solution, the inside of the fixed block is hollow, one end of the telescopic block is located inside the fixed block, and the fixed block further has a through groove. Further included is,

[0011] A limiting member, arranged on the telescopic block and passing through the through groove from inside the fixed block;

[0012] The second elastic member has one end acting on the limiting member and the other end acting on the fixed block, and is used to provide a force for the telescopic block to retract into the fixed block.

[0013] As a further technical solution, there are two telescopic blocks, which are symmetrically distributed at both ends of the fixed block. There are also two limit members, which are respectively arranged on the two telescopic blocks. The two ends of the elastic member act on the two telescopic blocks respectively.

[0014] As a further technical solution, the scraper 1 has a guide sleeve portion, the telescopic block has a guide column portion, one end of the elastic member 1 acts on the guide sleeve portion of the scraper 1, and the other end acts on the guide column portion of the telescopic block.

[0015] As a further technical solution, the scraping mechanism further includes:

[0016] A fixed frame, arranged on the rotating member;

[0017] There are several scrapers 2, which are arranged on the fixing frame at intervals.

[0018] As a further technical solution, several of the scrapers are arranged at an angle.

[0019] As a further technical solution, it also includes:

[0020] The rotating driving member is arranged on the frame and is drivingly connected to the rotating member.

[0021] The working principle and beneficial effects of the utility model are as follows:

[0022] In the utility model, on the one hand, a scraping mechanism is provided to clean the sludge at the bottom of the sedimentation tank, and on the other hand, a pair of scrapers are provided above the scraping mechanism to clean the sludge that may be attached to the inner wall of the sedimentation tank, thereby ensuring the cleanliness of the water quality of the sedimentation tank.

[0023] Specifically, a fixed block is installed on the rotating part, and the fixed block can be fastened with conventional fasteners, such as bolts, for easy assembly and disassembly. Then a reciprocating telescopic part is set on the fixed block, and a scraper connected to an elastic part is installed on the outside of the telescopic part. Therefore, after the rotating part rotates, the telescopic block can be manually controlled to extend, or the telescopic block can be thrown out by the centrifugal force of the rotating part, and then the scraper is used together, using centrifugal force to approach the inner wall of the sedimentation tank. Since there is not too much silt on the inner wall, most of it is residual attachment, so the force applied by the scraper to the inner wall is sufficient to effectively clean up the residual silt, and compared with rigid contact, the specific telescopic margin of this elastic contact can effectively avoid scratching and damaging the inner wall, ensuring the safe implementation of the sludge scraping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and understandable manner in combination with the accompanying drawings.

[0025] Figure 1 It is a schematic structural diagram of the sludge scraper in the sedimentation tank in the present utility model;

[0026] Figure 2 It is a schematic structural diagram of the telescopic block in the present utility model;

[0027] Figure 3 It is a schematic structural diagram of the guide sleeve part in the present utility model;

[0028] In the figure: 1. Sedimentation tank, 2. Frame, 3. Rotating member, 4. Sludge scraping mechanism, 5. Fixed block, 6. Telescopic block, 7. First scraper, 8. First elastic member, 9. Through groove, 10. Limiting member, 11. Second elastic member, 12. Guide sleeve part, 13. Guide post part, 14. Fixed frame, 15. Second scraper, 16. Rotating driving member. Specific embodiments

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings and other embodiments can be obtained.

[0030] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0031] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] As shown Figures 1 to 3 in the figure, a sludge scraper for sewage treatment is proposed, which includes a frame 2 for being arranged on a sedimentation tank 1, a rotating member 3 rotatably arranged on the frame 2, and a sludge scraping mechanism 4 arranged on the rotating member 3. The rotating member 3 is located inside the sedimentation tank 1, and further includes a fixed block 5. The fixed block 5 is arranged on the rotating member 3 and is located above the sludge scraping mechanism 4; a telescopic block 6 is movably arranged on the fixed block 5. After the telescopic block 6 moves, it approaches or moves away from the inner wall of the sedimentation tank 1; a first scraper 7 is located on the side of the telescopic block 6 close to the inner wall of the sedimentation tank 1. One end of an elastic member 8 acts on the first scraper 7, and the other end acts on the telescopic block 6, for providing a force for the first scraper 7 to move away from the inner wall of the sedimentation tank 1.

[0034] In this embodiment, in order to solve the problem that the sludge on the inner wall of the water tank in the related art is easily ignored and not cleaned, on the one hand, a sludge scraping mechanism 4 is arranged to clean the sludge at the bottom of the sedimentation tank 1, and on the other hand, a first scraper 7 is also arranged above the sludge scraping mechanism 4 to clean the sludge that may adhere to the inner wall of the sedimentation tank 1, so as to ensure the water quality of the sedimentation tank 1 is clean.

[0035] Specifically, this sludge scraper is installed in the sewage treatment sedimentation tank 1. The frame 2 stably supports the whole device and is located above the tank body. A fixed block 5 is installed and fixed on the rotating member 3. The fixed block 5 can be fastened by conventional fasteners, such as bolts, etc., which is convenient for installation and disassembly. Then, a reciprocating telescopic member is arranged on the fixed block 5, and a first scraper 7 connected by an elastic member is installed outside the telescopic member. Therefore, after the rotating member 3 rotates, the telescopic block 6 can be manually controlled to extend, or the telescopic block 6 can be thrown out by the centrifugal force of the rotating member 3. Then, similarly, the first scraper 7 approaches the inner wall of the sedimentation tank 1 by using the centrifugal force. Since there is not much sludge on the inner wall, mostly residual adhesion, the force exerted by the first scraper 7 on the inner wall is sufficient to effectively clean the residual sludge. And compared with rigid contact, such elastic contact has a specific telescopic margin, which can effectively avoid scratching and damaging the inner wall and ensure the safe progress of the sludge scraping work.

[0036] Further, the inside of the fixed block 5 is hollow. One end of the telescopic block 6 is located inside the fixed block 5. The fixed block 5 also has a through groove 9. It further includes a limiting member 10. The limiting member 10 is arranged on the telescopic block 6 and passes through the through groove 9 from inside the fixed block 5; one end of an elastic member 11 acts on the limiting member 10, and the other end acts on the fixed block 5, for providing a force for the telescopic block 6 to retract into the inside of the fixed block 5.

[0037] In this embodiment, both the first elastic member 8 and the second elastic member 11 can be springs. By using the centrifugal force of the rotating member 3, the first elastic member 8 and the second elastic member 11 will be stretched, causing the first scraping plate 7 and the telescopic block 6 to extend towards the inner wall of the sedimentation tank 1. Eventually, the first scraping plate 7 adheres to the inner wall and follows the rotation of the rotating member 3 to clean the silt on the inner wall, ensuring that the scraping plate maintains an appropriate pressure against the wall without damaging the tank wall, thus realizing the dynamic adaptive cleaning of the inner wall of the sedimentation tank 1. The addition of the limiting member 10 and the second elastic member 11 enables precise control of the movement of the telescopic block 6.

[0038] Furthermore, there are two telescopic blocks 6, symmetrically distributed at both ends of the fixed block 5. There are also two limiting members 10, respectively arranged on the two telescopic blocks 6, and both ends of the second elastic member 11 act on the two telescopic blocks 6 respectively.

[0039] In this embodiment, the two symmetrically distributed telescopic blocks 6, together with the corresponding limiting members 10 and elastic members, improve the stability and flexibility of the sludge scraper.

[0040] Furthermore, the first scraping plate 7 has a guide sleeve portion 12, and the telescopic block 6 has a guide post portion 13. One end of the first elastic member 8 acts on the guide sleeve portion 12 of the first scraping plate 7, and the other end acts on the guide post portion 13 of the telescopic block 6.

[0041] In this embodiment, in order to provide a certain guide for the reciprocating movement of the first scraping plate 7 and prevent it from easily deviating or skewing, a guide sleeve portion 12 is also provided on the first scraping plate 7, and a guide post portion 13 is provided on the telescopic block 6. One end of the first elastic member 8 can be inserted into the guide sleeve portion 12 and arranged on the inner wall of the guide sleeve portion 12, and the other end can be sleeved on the guide post portion 13, thus playing a certain guiding and limiting role for the first scraping plate 7.

[0042] Furthermore, the sludge scraping mechanism 4 further includes a fixing frame 14, which is arranged on the rotating member 3; there are several second scraping plates 15, arranged at intervals. Further, several second scraping plates 15 are all inclined.

[0043] In this embodiment, these second scraping plates 15 are arranged at a certain angle, further improving the comprehensiveness and efficiency of sludge scraping.

[0044] Furthermore, it further includes a rotation driving member 16, which is arranged on the frame 2 and is drivingly connected to the rotating member 3.

[0045] In this embodiment, the rotation driving member 16 can be selected as a motor, and the rotating member 3 can be selected as a rotating shaft. The rotation driving member 16, as the core power source, is accurately connected to the rotating member 3 to ensure that the sludge scraper runs smoothly along the sedimentation tank 1 and realizes automatic sludge scraping operation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A sludge scraper for sewage treatment, comprising a frame (2) configured to be disposed on a sedimentation tank (1), a rotating member (3) rotatably disposed on the frame (2), and a sludge scraping mechanism (4) disposed on the rotating member (3). The rotating member (3) is located inside the sedimentation tank (1), and is characterized in that, Further included is a fixed block (5), arranged on the rotating member (3) and located above the sludge scraping mechanism (4); a telescopic block (6), movably arranged on the fixed block (5), and after the telescopic block (6) moves, it approaches or moves away from the inner wall of the sedimentation tank (1); a first scraper (7) and a first elastic member (8), the first scraper (7) is located on the side of the telescopic block (6) close to the inner wall of the sedimentation tank (1), one end of the first elastic member (8) acts on the first scraper (7), and the other end acts on the telescopic block (6) to provide a force for the first scraper (7) to move away from the inner wall of the sedimentation tank (1).

2. The sludge scraper for sewage treatment according to claim 1, characterized in that, The interior of the fixed block (5) is hollow, one end of the telescopic block (6) is located inside the fixed block (5), and the fixed block (5) also has a through groove (9). Further included is a limiting member (10), arranged on the telescopic block (6) and passing through the through groove (9) from inside the fixed block (5); a second elastic member (11), one end acting on the limiting member (10), and the other end acting on the fixed block (5) to provide a force for the telescopic block (6) to retract into the interior of the fixed block (5).

3. The sludge scraper for sewage treatment according to claim 2, characterized in that, There are two telescopic blocks (6), symmetrically distributed at both ends of the fixed block (5), there are also two limiting members (10), respectively arranged on the two telescopic blocks (6), and both ends of the second elastic member (11) act on the two telescopic blocks (6) respectively.

4. The sludge scraper for sewage treatment according to claim 1, wherein The first scraper (7) has a guide sleeve portion (12), the telescopic block (6) has a guide post portion (13), one end of the first elastic member (8) acts on the guide sleeve portion (12) of the first scraper (7), and the other end acts on the guide post portion (13) of the telescopic block (6).

5. The sludge scraper for sewage treatment according to claim 1, characterized in that, The sludge scraping mechanism (4) further includes a fixed frame (14), arranged on the rotating member (3); a plurality of second scrapers (15), arranged on the fixed frame (14) at intervals.

6. The sludge scraper for sewage treatment according to claim 5, wherein The plurality of second scrapers (15) are all inclined.

7. A sludge scraper for sewage treatment according to claim 1, characterized in that, Further included is a rotation driving member (16), arranged on the frame (2) and drivingly connected to the rotating member (3).

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