Mud scraper for sewage treatment
Through modular design and steel cable traction connection components, the sludge scraper for sewage treatment can quickly switch between rotary sludge scraping and reciprocating sludge scraping modes, solving the problems of single function and easy deformation of traditional sludge scrapers, improving the adaptability and maintenance efficiency of the equipment, and making it suitable for a variety of sewage treatment scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG MEIYAN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-01
AI Technical Summary
Existing sludge scrapers for wastewater treatment suffer from problems such as limited operating modes, complex equipment structures, high maintenance costs, and difficulty in adapting to the diverse needs of different wastewater treatment processes.
The modular design includes a base frame, connecting rods, connecting seats, connecting frames, connecting components, and auxiliary components, enabling quick switching between rotary and reciprocating scraping modes. It utilizes a steel cable traction connecting component in conjunction with a rigid base frame, along with detachable scrapers and multi-functional interfaces, to enhance the equipment's adaptability to various working conditions and ease of maintenance.
It achieves high efficiency adaptability of the sludge scraper under different working conditions, reduces energy consumption and maintenance costs, and is suitable for sludge cleaning needs of municipal sewage treatment plants and industrial wastewater treatment stations.
Smart Images

Figure CN224180308U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of environmental protection equipment technology, specifically relating to a sludge scraper for sewage treatment. Background Technology
[0002] A sludge scraper is a mechanical device used to remove sludge from the bottom of sedimentation tanks during wastewater treatment. Its background technology can be traced back to the industrial application of wastewater treatment systems in the early 20th century. Traditional sludge scrapers drive scrapers or chains to move slowly along the bottom of the tank through a mechanical transmission device, scraping the settled sludge to the sludge discharge port. Early models mostly adopted truss or chain structures, relying on motor reducers for power.
[0003] Application No. 202023221080.3 discloses a sludge scraper for sewage sedimentation. The utility model discloses a sludge scraper for sewage sedimentation, including a traveling trolley, a scraper support, a scraper blade, and a scraper blade adjustment mechanism. The traveling trolley includes a traveling trolley support and wheel supports mounted at both ends of the traveling trolley support. Two wheels are respectively mounted downwards on the wheel supports. A power mechanism for driving the wheels to rotate is mounted on the traveling trolley support. The lower end of the traveling trolley support is fixedly connected to the scraper support via at least two first hydraulic cylinders. The lower end of the scraper support is hinged to both ends of the scraper blade. The scraper blade adjustment mechanism includes a hydraulic cylinder support fixedly mounted on the scraper support. The hydraulic cylinder support is hinged to the cylinder body of a second hydraulic cylinder. A hinge support is fixedly mounted on the scraper blade. The piston rod of the second hydraulic cylinder is hinged to the hinge support and used to drive the scraper blade to rotate. This utility model has the advantages of simple structure, improved scraping efficiency and quality, and ease of use.
[0004] Although the aforementioned document achieves angle adjustment and height control of the scraper blade through hydraulic cylinder adjustment, thereby improving scraping efficiency, it still suffers from problems such as a single working mode, complex equipment structure, and high maintenance costs, making it difficult to adapt to the diverse needs of different sewage treatment processes for scraping operations; therefore, a sludge scraper for sewage treatment has emerged. Utility Model Content
[0005] The purpose of this utility model is to provide a sludge scraper for sewage treatment, which aims to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A sludge scraper for wastewater treatment includes,
[0008] The base frame, a connecting rod fixedly installed on the side wall of the base frame, a connecting seat fixedly installed on the side wall of the connecting rod, a connecting frame fixedly connected to the side wall of the base frame, a connecting assembly disposed on the side wall of the base frame, a connecting assembly disposed on the surface of the connecting frame, and an auxiliary assembly disposed at the bottom of the base frame.
[0009] As a preferred embodiment of this utility model, the connecting assembly includes a pull rod fixedly installed on the side wall of the connecting seat, a connector fixedly installed on the end of the pull rod, and a steel cable fixedly installed on the side wall of the connector.
[0010] As a preferred embodiment of the present invention, the connecting assembly further includes a mounting base fixedly installed at the end of the steel cable, and a scraper fixedly installed at the bottom of the base frame.
[0011] As a preferred embodiment of this utility model, the mounting assembly includes a mounting bracket fixedly mounted on the top of the connecting frame, and a fixing seat fixedly mounted on the side wall of the mounting bracket.
[0012] As a preferred embodiment of the present invention, the mounting assembly further includes a connector fixedly mounted on the side wall of the fixing seat, and a mounting plate fixedly mounted on the side wall of the mounting bracket.
[0013] As a preferred embodiment of this utility model, the auxiliary component includes a connecting block fixedly installed at the bottom of the base frame, and a support rod fixedly installed on the side wall of the connecting block.
[0014] As a preferred embodiment of this utility model, the auxiliary component further includes a retainer fixedly installed at the end of the support rod, and a scraper engaged with the inner wall of the retainer.
[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: The installation and connection components enable rapid switching between rotary and reciprocating scraping modes, improving the equipment's adaptability to various operating conditions; the combination of steel cable traction connection components and a rigid base frame effectively solves the problem of easy deformation during operation of traditional scrapers; the card-mounted scraper not only facilitates quick replacement and maintenance but also ensures optimal contact pressure between the scraper and the pool bottom; the multi-functional interface of the mounting plate allows for quick docking with different drive devices, greatly improving equipment deployment efficiency; and the coordinated operation of all components ensures efficient scraping while reducing energy consumption and maintenance costs, making it particularly suitable for sludge cleaning operations in various scenarios such as municipal sewage treatment plants and industrial wastewater treatment stations. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram showing the connection between the base frame and the connecting rod of this utility model;
[0019] Figure 3 This is a schematic diagram showing the connection between the mounting bracket and the mounting plate of this utility model;
[0020] Figure 4 This is a schematic diagram showing the connection between the card holder and the scraper of this utility model.
[0021] In the diagram: 101, base frame; 102, connecting rod; 103, connecting seat; 104, connecting frame; 105, connecting assembly; 105a, pull rod; 105b, connector; 105c, steel cable; 105d, mounting seat; 105e, scraper; 106, mounting assembly; 106a, mounting frame; 106b, fixing seat; 106c, joint; 106d, mounting plate; 107, auxiliary assembly; 107a, connecting block; 107b, support rod; 107c, card holder; 107d, scraper. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example
[0025] Reference Figures 1-4This is an embodiment of the present invention, which provides a sludge scraper for wastewater treatment, comprising:
[0026] The base frame 101, the connecting rod 102 fixedly installed on the side wall of the base frame 101, the connecting seat 103 fixedly installed on the side wall of the connecting rod 102, the connecting frame 104 fixedly connected to the side wall of the base frame 101, the connecting component 105 provided on the side wall of the base frame 101, the connecting component 105 provided on the surface of the connecting frame 104, and the auxiliary component 107 provided at the bottom of the base frame 101.
[0027] Specifically, the connecting assembly 105 includes a pull rod 105a fixedly installed on the side wall of the connecting seat 103, a connector 105b fixedly installed on the end of the pull rod 105a, and a steel cable 105c fixedly installed on the side wall of the connector 105b. The connecting assembly 105 also includes a mounting seat 105d fixedly installed on the end of the steel cable 105c, and a scraper 105e fixedly installed on the bottom of the base frame 101.
[0028] Furthermore, the mounting base 105d is connected to the connector 106c by bolts, and the base frame 101 is pulled by the steel cable 105c to ensure that the base frame 101 will not deform due to gravity when the device is in use.
[0029] Mounting assembly 106 includes a mounting bracket 106a fixedly mounted on the top of the connecting bracket 104, and a mounting base 106b fixedly mounted on the side wall of the mounting bracket 106a. Mounting assembly 106 also includes a connector 106c fixedly mounted on the side wall of the mounting base 106b, and a mounting plate 106d fixedly mounted on the side wall of the mounting bracket 106a.
[0030] Preferably, the mounting plate 106d is designed to facilitate the connection of a motor or a linear motor, which, when used with the base frame 101, can perform rotary or reciprocating mud scraping.
[0031] The auxiliary component 107 includes a connecting block 107a fixedly installed at the bottom of the base frame 101, and a support rod 107b fixedly installed on the side wall of the connecting block 107a. The auxiliary component 107 also includes a card holder 107c fixedly installed at the end of the support rod 107b, and a scraper 107d snapped into the inner wall of the card holder 107c.
[0032] It should be noted that the scraper 107d is designed for easy use when rotating to scrape sludge, making it easy to remove sludge by rotation.
[0033] In use, the sludge scraper is fixed to the corresponding position in the sewage tank via the connecting frame 104. When the rotary sludge scraping mode is used, the drive motor is connected via the mounting plate 106d, which drives the base frame 101 and the scraper 107d to rotate. The scraper 107d scrapes the sludge at the bottom of the tank towards the sludge collection trough. When the reciprocating sludge scraping mode is used, the linear motor drives the connecting assembly 105. The steel cable 105c connected to the connector 106c of the mounting frame 106a pulls the base frame 101 to reciprocate. The scraper 105e pushes the sludge towards the sludge discharge port. The support rod 107b and the bracket 107c in the auxiliary assembly 107 ensure that the scraper 107d maintains stable contact with the bottom of the tank during rotation, while the rigid support of the connecting block 107a prevents deformation during sludge scraping operations.
[0034] In summary, the modular design enables dual-mode switching between rotary and reciprocating sludge scraping, significantly improving adaptability. Specifically, the connecting component 105, pulled by steel cable 105c, ensures the base frame 101 resists deformation during reciprocating motion, while the bolt-fixed mounting base 105d and connector 106c structure enhance transmission stability. The detachable scraper 107d combined with the rigid support rod 107b in the auxiliary component 107 ensures continuous contact force during rotary sludge scraping and facilitates the replacement of worn parts. The mounting plate 106d is compatible with quick docking of the motor and linear motor. Combined with the card holder 107c and scraper 107d layout, this effectively solves the problems of traditional sludge scrapers, such as limited functionality, easy deformation, and difficult maintenance. It is particularly suitable for treatment scenarios with different pool structures and sludge characteristics.
[0035] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0036] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0037] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A sludge scraper for sewage treatment, characterized by: include, The base frame (101), the connecting rod (102) fixedly installed on the side wall of the base frame (101), the connecting seat (103) fixedly installed on the side wall of the connecting rod (102), the connecting frame (104) fixedly connected to the side wall of the base frame (101), the connecting assembly (105) provided on the side wall of the base frame (101), the connecting assembly (105) provided on the surface of the connecting frame (104), and the auxiliary assembly (107) provided at the bottom of the base frame (101).
2. The sludge scraper for wastewater treatment according to claim 1, characterized in that: The connecting assembly (105) includes a pull rod (105a) fixedly installed on the side wall of the connecting seat (103), a connector (105b) fixedly installed on the end of the pull rod (105a), and a steel cable (105c) fixedly installed on the side wall of the connector (105b).
3. A sludge scraper for wastewater treatment according to claim 2, characterized in that: The connecting assembly (105) also includes a mounting base (105d) fixedly installed at the end of the steel cable (105c) and a scraper (105e) fixedly installed at the bottom of the base frame (101).
4. A mud scraper for sewage treatment according to claim 3, characterized in that: The mounting assembly (106) includes a mounting bracket (106a) fixedly mounted on the top of the connecting frame (104) and a mounting base (106b) fixedly mounted on the side wall of the mounting bracket (106a).
5. A mud scraper for sewage treatment according to claim 4, characterized in that: The mounting assembly (106) further includes a connector (106c) fixedly mounted on the side wall of the mounting base (106b), and a mounting plate (106d) fixedly mounted on the side wall of the mounting bracket (106a).
6. A mud scraper for sewage treatment according to claim 5, characterized in that: The auxiliary component (107) includes a connecting block (107a) fixedly installed at the bottom of the base frame (101) and a support rod (107b) fixedly installed on the side wall of the connecting block (107a).
7. A sludge scraper for wastewater treatment according to claim 6, characterized in that: The auxiliary component (107) also includes a retainer (107c) fixedly installed at the end of the support rod (107b), and a scraper (107d) engaged with the inner wall of the retainer (107c).
Citation Information
Patent Citations
Mud scraper for sewage precipitation
CN214436756U