Anti-clogging sludge scraper system for mechanical accelerated clarifiers

Abstract

The utility model discloses a kind of anti-blocking mud scraper systems for mechanical acceleration clarifying basin, it is related to water treatment technical field, including motor and working bridge, working bridge is fixedly installed in the upper end opening of clarifying basin, motor is installed on the upper surface of working bridge by flange, and the working end of motor is fixedly connected with the upper end of rotating shaft and penetrates working bridge;The lower end of rotating shaft is fixedly connected with mud arm mounting seat;Mud arm mounting seat is equipped with mud scraping assembly, and fixed ring is installed on the outer side wall of rotating shaft, and fixed ring is connected with mud scraping assembly by stretching assembly.The utility model discloses a kind of anti-blocking mud scraper systems for mechanical acceleration clarifying basin, mud scraping side plate can be elastically connected with the end of mud arm, mud scraping side plate can extend to backflow mud gap, ensure that active sludge in backflow mud gap can be scraped to clarifying basin first reaction chamber during operation, contact coagulation with raw water unstable particle, make impurity separate, improve anti-blocking capacity, enhance coagulation effect.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to an anti-clogging sludge scraper system for mechanically accelerated clarification tanks. Background Technology

[0002] A clarification tank integrates flocculation and sedimentation processes into a single structure, primarily relying on activated sludge to achieve clarification. Its operation involves the sludge being recycled within a certain range. During this recycling process, the activated sludge continuously contacts and flocculates destabilized particles in the raw water, separating impurities. Each mechanically accelerated clarification tank is equipped with a mechanical scraper at the bottom to prevent the sludge in the first reaction chamber from becoming stagnant. The decelerated power is transmitted to the central shaft of the scraper, which drives the scraper arms mounted around it to rotate. Scraper blades are installed on the scraper arms; as the arms rotate, these blades move along the bottom of the clarification tank, scraping the deactivated sludge from the tank walls towards the center, allowing the sludge to accumulate in the central area. This sludge is then periodically discharged from the center of the bottom.

[0003] During the cleaning of the sludge accumulated at the bottom of the clarifier, it was found that, on the one hand, the return sludge gaps were blocked, preventing the activated sludge from flowing back to the first reaction chamber normally. The activated sludge could not participate in contact coagulation with the destabilized particles of the raw water, and impurities could not be separated, affecting the overall coagulation effect of the clarifier and thus affecting the quality of the effluent from the clarifier. On the other hand, the scraper could not adapt to the curvature of the bottom of the clarifier and make close contact with the bottom of the clarifier to ensure the scraping effect.

[0004] Developing an anti-clogging sludge scraper system for mechanically accelerated clarifiers, capable of extending to the return sludge gaps and controlling the contact distance with the bottom of the clarifier to ensure effective sludge scraping and improve anti-clogging capabilities, has become a pressing technical challenge for those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an anti-clogging sludge scraper system for mechanically accelerated clarification tanks, thereby solving the problems listed in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses an anti-clogging sludge scraper system for a mechanically accelerated clarification tank, comprising a motor and a working bridge. The working bridge is fixedly installed at the upper opening of the clarification tank, and the motor is mounted on the upper surface of the working bridge via a flange. The working end of the motor passes through the working bridge and is fixedly connected to the upper end of the rotating shaft.

[0008] The lower end of the rotating shaft is fixedly connected to the scraper arm mounting base;

[0009] The scraper arm mounting base is equipped with a scraper assembly, and a fixing ring is installed on the outer side wall of the rotating shaft. The fixing ring is connected to the scraper assembly through a tensioning assembly.

[0010] Preferably, the sludge scraping assembly includes multiple sludge scraping arms, which are hinged to each other. One end of each sludge scraping arm is hinged to the side wall of the sludge scraping arm mounting base through a main hinge lug, and a telescopic scraper unit is installed at the other end of each sludge scraping arm.

[0011] The scraper arm has a scraper unit mounted on its lower surface.

[0012] Preferably, the telescopic scraper unit includes a fixed sleeve, which is fixedly installed at one end of the scraper arm. A spring is installed inside the fixed sleeve, and a telescopic rod is slidably installed inside the fixed sleeve. One end of the telescopic rod abuts against the free end of the spring, and the other end of the telescopic rod is hinged to the scraper side plate.

[0013] Preferably, the scraper unit includes a connecting rod, the upper end of which is hinged to the lower end of the scraper arm via a secondary hinge lug, and the installation orientation of the secondary hinge lug is the same as the axial direction of the scraper arm.

[0014] The lower end of the connecting rod is connected to the upper end of the rotating rod, and the lower end of the rotating rod is hinged to the mud scraper base plate.

[0015] Preferably, the tensioning assembly includes a pull rod and a turnbuckle, with the opposite ends of the two pull rods connected by the turnbuckle, one end of the pull rod being hinged to the fixing ring, and the other end of the pull rod being hinged to the connection point of the scraper arm.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] This utility model discloses an anti-clogging sludge scraper system for a mechanically accelerated clarifier. A sludge scraper side plate is added to each end of the scraper wall, and the sludge scraper side plate can be elastically connected to the scraper arm. During the sludge scraping operation, the sludge scraper side plate can extend to the return sludge gap, ensuring that the active sludge at the return sludge gap can be scraped to the first reaction chamber of the clarifier during operation, and contacted with the destabilized particles of the raw water for coagulation, so as to separate impurities, enhance the coagulation effect, and improve the effluent quality of the clarifier.

[0018] The hinged connection between the scraper arm and the scraper base plate allows for adaptation to different bottom dimensions of the clarifier, ensuring effective scraping and preventing blockages. Furthermore, the tensioning mechanism adjusts the angle between the upper surface of the scraper arm and the rotating shaft, controlling the relative distance between the scraper base plate and the bottom of the clarifier, thus ensuring the lifespan of the scraper base plate. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a front view schematic diagram of an anti-clogging sludge scraper system for a mechanically accelerated clarification tank according to the present invention;

[0021] Figure 2 This is a three-dimensional schematic diagram of an anti-clogging sludge scraper system for a mechanically accelerated clarification tank according to the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Motor; 2. Working bridge; 3. Rotating shaft; 4. Fixing ring; 5. Tie rod; 6. Turnbuckle; 7. Scraper arm; 8. Connecting rod; 9. Rotating rod; 10. Scraper base plate; 11. Fixing sleeve; 12. Telescopic rod; 13. Scraper side plate; 14. Scraper arm mounting base. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] like Figure 1-2 As shown, an anti-clogging sludge scraper system for a mechanically accelerated clarifier includes a motor 1 and a working bridge 2. The working bridge 2 is fixedly installed at the upper opening of the clarifier. A guardrail is installed on the upper surface of the working bridge 2. The motor 1 is installed on the upper surface of the working bridge 2 through a flange. The working end of the motor 1 passes through the working bridge 2 and is fixedly connected to the upper end of a rotating shaft 3 to drive the rotating shaft to rotate.

[0025] The lower end of the rotating shaft 3 is fixedly connected to the scraper arm mounting base 14;

[0026] The scraper arm mounting base 14 is equipped with a scraper assembly. The number of scraper assemblies can be set to one or more according to the actual needs of on-site construction.

[0027] A fixing ring 4 is installed on the outer side wall of the rotating shaft 3, and the fixing ring 4 is connected to the mud scraping assembly through a tensioning assembly.

[0028] During operation, the length of the stretching component is adjusted to control the curvature of the scraping component, which is used to adapt to the bottom size of the clarifier, ensuring that the scraping component makes close contact with the bottom of the clarifier and scrapes the sludge at the bottom of the tank.

[0029] Specifically, the sludge scraping assembly includes multiple sludge scraping arms 7, which are hinged to each other. One end of each sludge scraping arm 7 is hinged to the side wall of the sludge scraping arm mounting base 14 through a main hinge lug. The other end of each sludge scraping arm 7 is equipped with a telescopic scraper unit. The multiple sludge scraping arms are hinged, and the scraping arms are hinged to the scraping arm mounting base, so that the scraping arms can swing relative to the bottom of the clarification tank to adapt to the arc surface size of the bottom of the clarification tank.

[0030] The lower surface of the scraper arm 7 is equipped with a scraper unit to scrape the sludge at the bottom of the clarifier.

[0031] Specifically, the telescopic scraper unit includes a fixed sleeve 11, which is fixedly installed at one end of the scraper arm 7. A spring is installed inside the fixed sleeve 11, and a telescopic rod 12 is slidably installed inside the fixed sleeve 11. One end of the telescopic rod 12 abuts against the free end of the spring, and the other end of the telescopic rod 12 is hinged to the scraper side plate 13. When the scraper is rotated, the spring inside the fixed sleeve drives the telescopic rod to extend outward, further causing the scraper side plate to abut against the return sludge gap of the clarifier, scraping the sludge at the return sludge gap, and scraping the activated sludge into the first reaction chamber of the clarifier. There, the activated sludge comes into contact with the destabilized particles of the raw water for coagulation, thereby separating impurities, enhancing the coagulation effect, and improving the effluent quality of the clarifier.

[0032] Specifically, the scraper unit includes a connecting rod 8, the upper end of which is hinged to the lower end of the scraper arm 7 via a secondary hinge lug, and the installation orientation of the secondary hinge lug is the same as the axial direction of the scraper arm 7.

[0033] The lower end of the connecting rod 8 is connected to the upper end of the rotating rod 9, and the lower end of the rotating rod 9 is hinged to the sludge scraping bottom plate 10, which enables the sludge scraping bottom plate to contact the bottom of the clarification tank and ensure the sludge scraping effect.

[0034] Furthermore, the contact end between the sludge scraper and the bottom of the clarifier is made of rubber. This ensures the sludge scraping effect and allows the sludge scraper to adapt to the size of the bottom of the clarifier, reducing wear on the sludge scraper.

[0035] Specifically, the tensioning assembly includes a pull rod 5 and a turnbuckle 6. The opposite ends of the two pull rods 5 are connected by the turnbuckle 6. One end of the pull rod 5 is hinged to the fixing ring 4, and the other end of the pull rod 5 is hinged to the connection of the sludge scraper arm 7. At the same time, rotating the turnbuckle controls the relative distance between the two pull rods, thereby completing the pulling operation of the sludge scraper arm and realizing the control of the relative distance between the sludge scraper bottom plate and the bottom of the clarifier tank.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A clogging-resistant sludge scraper system for a mechanically accelerated clarifier, comprising a motor (1) and a working bridge (2), wherein the working bridge (2) is fixedly installed at the upper opening of the clarifier, and the motor (1) is mounted on the upper surface of the working bridge (2) via a flange, characterized in that: The working end of the motor (1) passes through the working bridge (2) and is fixedly connected to the upper end of the rotating shaft (3); The lower end of the rotating shaft (3) is fixedly connected to the scraper arm mounting base (14); The scraper arm mounting base (14) is equipped with a scraper assembly, and a fixing ring (4) is installed on the outer side wall of the rotating shaft (3). The fixing ring (4) is connected to the scraper assembly through a tensioning assembly.

2. The anti-clogging sludge scraper system for a mechanically accelerated clarifier according to claim 1, characterized in that: The sludge scraping assembly includes multiple sludge scraping arms (7), which are hinged to each other. One end of each sludge scraping arm (7) is hinged to the side wall of the sludge scraping arm mounting base (14) through a main hinge lug. The other end of each sludge scraping arm (7) is equipped with a telescopic scraper unit. The scraper arm (7) has a scraper unit installed on its lower surface.

3. The anti-clogging sludge scraper system for a mechanically accelerated clarifier according to claim 2, characterized in that: The telescopic scraper unit includes a fixed sleeve (11), which is fixedly installed at one end of the scraper arm (7). A spring is installed inside the fixed sleeve (11), and a telescopic rod (12) is slidably installed inside the fixed sleeve (11). One end of the telescopic rod (12) abuts against the free end of the spring, and the other end of the telescopic rod (12) is hinged to the scraper side plate (13).

4. The anti-clogging sludge scraper system for a mechanically accelerated clarifier according to claim 2, characterized in that: The scraper unit includes a connecting rod (8), the upper end of which is hinged to the lower end of the scraper arm (7) via a secondary hinge lug, and the installation orientation of the secondary hinge lug is the same as the axial direction of the scraper arm (7). The lower end of the connecting rod (8) is connected to the upper end of the rotating rod (9), and the lower end of the rotating rod (9) is hinged to the mud scraper base plate (10).

5. The anti-clogging sludge scraper system for a mechanically accelerated clarifier according to claim 4, characterized in that: The tensioning assembly includes a pull rod (5) and a turnbuckle (6). The opposite ends of the two pull rods (5) are connected by the turnbuckle (6). One end of the pull rod (5) is hinged to the fixing ring (4), and the other end of the pull rod (5) is hinged to the connection of the scraper arm (7).

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