Sludge scraping device for sewage treatment sedimentation tank

Abstract

The utility model discloses a sludge scraping device for a sewage treatment sedimentation tank, which relates to the technical field of sludge scrapers and comprises a sedimentation tank main body, a first moving part is mounted above the sedimentation tank main body, second moving parts are mounted above the first moving part, a cross frame is mounted between the second moving parts, and a plurality of sludge scraping plates are mounted on the cross frame. Two sets of vertical frames are installed below the transverse frame, a rotating roller is installed between the vertical frames, four sets of annularly-distributed shovel frames are installed on the outer wall of the rotating roller, a plurality of crushing teeth transversely arranged at intervals are arranged on the outer walls of the shovel frames, and a rotating assembly driving the rotating roller to rotate is installed above the transverse frame. And a mud scraping plate is mounted at the rear end of the rotating roller. The sludge scraping device solves the problem that when an existing sludge scraping device is used, sludge breaking knives distributed at equal intervals cannot effectively treat large or unevenly-distributed sludge, and then the sludge scraping process is affected.

Description

Technical Field

[0001] This utility model relates to the field of sludge scraper technology, specifically a sludge scraping device for sewage treatment sedimentation tanks. Background Technology

[0002] In the process of sewage treatment, sedimentation tanks are used to separate solids from sewage in order to remove suspended solids. After a period of use, a large amount of sludge will accumulate at the bottom of the sedimentation tank, which requires the use of a sludge scraper to clean it.

[0003] For example, the public document CN222218713U, entitled "A Sludge Scraping Device for Sedimentation Tanks," includes a sedimentation tank body. A sludge collection hopper is located at the bottom of the sedimentation tank body, and a sludge discharge pipe is connected to the side of the hopper. A moving component is installed at the top of the sedimentation tank body, and a first cylinder is located at the center of the moving component. The bottom of the first cylinder is connected to a scraper blade via a vertical rod. By incorporating a motor and sludge-crushing blades, the motor drives the continuous rotation of each set of sludge-crushing blades during operation. This disperses clumps of sludge during scraping, reducing resistance during the scraper blade movement and effectively preventing jamming. A second cylinder and steel brush are also included. Driven by the second cylinder, the sludge-crushing blades and steel brush move up and down, dispersing the sludge and cleaning the scraper blade simultaneously.

[0004] The existing sludge scraping devices described above cannot effectively handle large or unevenly distributed sludge pieces when in use, thus affecting the sludge scraping process; therefore, they do not meet the current requirements. In response, we propose a sludge scraping device for wastewater treatment sedimentation tanks. Utility Model Content

[0005] The purpose of this utility model is to provide a sludge scraping device for sewage treatment sedimentation tanks, so as to solve the problem mentioned in the background art that the existing sludge scraping devices, when in use, cannot effectively handle large pieces or unevenly distributed sludge with equally spaced sludge blades, thus affecting the sludge scraping process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sludge scraping device for a sewage treatment sedimentation tank, comprising: a sedimentation tank body, a first movable component installed above the sedimentation tank body, a second movable component installed above the first movable component, a crossbeam installed between the second movable component, two sets of vertical frames installed below the crossbeam, a rotating roller installed between the vertical frames, four sets of ring-shaped shovels installed on the outer wall of the rotating roller, a plurality of horizontally spaced crushing teeth arranged on the outer wall of the shovels, a rotating assembly for driving the rotating roller to rotate installed above the crossbeam, and a sludge scraper installed at the rear end of the rotating roller.

[0007] Preferably, the rotating assembly includes a rotating motor, a first sprocket is mounted on the output end of the rotating motor, a second sprocket is mounted on the end of the rotating roller, and the first sprocket and the second sprocket are connected by a chain.

[0008] Preferably, an inclined guide plate is installed at the lower bottom of the scraper blade, and a top plate is installed at the upper top of the scraper blade.

[0009] Preferably, an electric telescopic rod is installed above the top plate, a pusher is installed at the telescopic end of the electric telescopic rod, and a plurality of brush blocks are installed on the rear end face of the pusher.

[0010] Preferably, the first moving component includes a first lead screw and a first guide rod, and a first slider is installed on the outer wall of both the first lead screw and the first guide rod. A first lead screw motor is installed at one end of the first lead screw.

[0011] Preferably, the second moving member includes a second lead screw and a second guide rod respectively mounted on the two first sliders.

[0012] Preferably, a second lead screw motor is installed at one end of the second lead screw, and a second slider is installed on the outer wall of both the second lead screw and the second guide rod, with the crossbar installed between the two second sliders.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the sludge scraping assembly uses a rotating motor to drive the rotating roller to perform sludge scraping operation. During the rotation, the four sets of shovel frames at the roller position perform cyclic scraping operation on the sludge. The combination of several crushing teeth and tooth grooves on the outer wall of the shovel frame can break the solidified sludge into a small volume during the shoveling process. With the kinetic energy of the turning, the falling sludge is further crushed. This structure can effectively handle blocky sludge of different volumes and distribution locations, and can effectively improve the sludge scraping effect.

[0015] 2. In this utility model, when the front rotating roller is rotating to scrape the sludge, the scraper pushes the sludge forward. The sludge accumulated at the scraper is tumbled and crushed a second time by the front rotating roller. After moving to the discharge port, the sludge falls down along the inclined guide plate. During the falling process, the rotating roller continues to rotate, causing the sludge to tumble down to the discharge port. Then, the electric telescopic rod drives the legs to move down, pushing the accumulated sludge down to the inclined guide plate for discharge. When moving up and down at this position, the brush blocks contact the surface of the scraper to scrape off the sludge remaining on the surface, improving the sludge scraping effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the second moving part and the rotating roller of this utility model;

[0018] Figure 3 This is a schematic diagram of the scraper structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating component structure of this utility model;

[0020] Figure 5 This is a rear view of the pusher frame of this utility model;

[0021] In the diagram: 1. Sedimentation tank body; 2. First moving component; 201. First lead screw; 202. First guide rod; 203. First slider; 204. First lead screw motor; 3. Second moving component; 301. Second lead screw; 302. Second guide rod; 303. Second lead screw motor; 304. Second slider; 305. Horizontal frame; 306. Vertical frame; 4. Rotating assembly; 401. Rotating motor; 402. First sprocket; 403. Chain; 404. Second sprocket; 5. Rotating roller; 501. Shovel frame; 502. Crushing teeth; 6. Sludge scraper; 601. Inclined guide plate; 602. Top plate; 603. Electric telescopic rod; 604. Push frame; 605. Brush block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 2 , Figure 4 An embodiment of this utility model provides a sludge scraping device for a sewage treatment sedimentation tank, comprising: a sedimentation tank body 1; four sets of ring-shaped shovel frames 501 are installed on the outer wall of a rotating roller 5; a plurality of horizontally spaced crushing teeth 502 are provided on the outer wall of the shovel frames 501; a rotating assembly 4 for driving the rotating roller 5 to rotate is installed above the cross frame 305; the rotating assembly 4 includes a rotating motor 401; a first sprocket 402 is installed at the output end of the rotating motor 401; a second sprocket 404 is installed at the end of the rotating roller 5; and the first sprocket 402 and the second sprocket 404 are connected by a chain 403.

[0024] The sludge scraping assembly uses a rotating motor 401 to drive the rotating roller 5 to perform sludge scraping operations. During the rotation, the four sets of shovel frames 501 at the position of the rotating roller 5 perform cyclic scraping operations on the sludge. The combination of several crushing teeth 502 on the outer wall of the shovel frame 501 and the tooth groove can break the solidified sludge into a small volume during the shoveling process. With the kinetic energy of the turning, the falling sludge is further crushed. This structure can effectively handle blocky sludge of different volumes and different distribution positions, and can effectively improve the sludge scraping effect.

[0025] The rotating motor 401 drives the first sprocket 402 to rotate, and through the chain 403, drives the second sprocket 404 at the rotating roller 5 to rotate. The chain structure drives the rotating roller 5. The motor is located at the top, which makes subsequent installation, disassembly and maintenance more convenient. The chain structure is located inside the vertical frame 306, which is not easy to come into contact with external sludge, which can effectively improve its protection and service life.

[0026] Please see Figure 3 , Figure 5 A scraper 6 is installed at the rear end of the rotating roller 5. An inclined guide plate 601 is installed at the bottom of the scraper 6. A top plate 602 is installed at the top of the scraper 6. An electric telescopic rod 603 is installed above the top plate 602. A pusher 604 is installed at the telescopic end of the electric telescopic rod 603. Several brush blocks 605 are installed on the rear end face of the pusher 604.

[0027] When the front rotating roller 5 rotates to scrape the sludge, the scraper 6 pushes the sludge forward. The sludge accumulated at the scraper 6 is turned over and crushed a second time by the front rotating roller 5. After moving to the discharge port, the sludge falls down along the inclined guide plate 601. During the falling process, the rotating roller 5 continues to rotate, causing the sludge to turn over and fall to the discharge port. Then, the electric telescopic rod 603 drives the pusher 604 to move down, pushing the accumulated sludge down to the inclined guide plate 601 for discharge. When moving up and down at this position, the brush block 605 contacts the surface of the scraper 6 to scrape off the sludge remaining on its surface, improving the sludge scraping effect.

[0028] Please see Figure 1 , Figure 2 A first movable component 2 is installed above the main body 1 of the sedimentation tank, a second movable component 3 is installed above the first movable component 2, a horizontal frame 305 is installed between the second movable components 3, two sets of vertical frames 306 are installed below the horizontal frame 305, and a rotating roller 5 is installed between the vertical frames 306.

[0029] The first moving component 2 includes a first lead screw 201 and a first guide rod 202. A first slider 203 is mounted on the outer wall of both the first lead screw 201 and the first guide rod 202. A first lead screw motor 204 is mounted on one end of the first lead screw 201. The second moving component 3 includes a second lead screw 301 and a second guide rod 302 respectively mounted on the two first sliders 203. A second lead screw motor 303 is mounted on one end of the second lead screw 301. A second slider 304 is mounted on the outer wall of both the second lead screw 301 and the second guide rod 302. A crossbar 305 is mounted on the two second sliders 203. Between 4; the first slider 203 is moved by the first lead screw motor 204 and the first lead screw 201, and the sludge scraping assembly is moved to scrape the sludge. On the basis of moving and scraping the sludge, the second slider 304 is moved by the second lead screw motor 303 and the second lead screw 301. This displacement process is mainly used to adjust the height of the sludge scraping assembly, so that it can move to the bottom of the sedimentation tank to scrape the bottom sludge. After scraping the sludge, it is raised to the top by the lifting structure, which makes it convenient for users to perform regular cleaning, replacement and maintenance of the sludge scraping assembly.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sludge scraping device for a sewage treatment sedimentation tank, comprising a sedimentation tank body (1), characterized in that: The first moving part (2) is installed above the sedimentation tank body (1), the second moving part (3) is installed above the first moving part (2), the cross frame (305) is installed between the second moving part (3), two groups of vertical frames (306) are installed below the cross frame (305), the rotating roller (5) is installed between the vertical frames (306), four groups of annularly distributed shovel frames (501) are installed on the outer wall of the rotating roller (5), a plurality of transversely spaced breaking teeth (502) are arranged on the outer wall of the shovel frame (501), the rotating assembly (4) for driving the rotating roller (5) to rotate is installed above the cross frame (305), and the mud scraping plate (6) is installed at the rear end of the rotating roller (5).

2. A sludge scraping device for a sewage treatment lagoon according to claim 1, characterized in that: The rotating assembly (4) comprises a rotating motor (401), a first sprocket (402) is installed at the output end of the rotating motor (401), a second sprocket (404) is installed at the end of the rotating roller (5), and the first sprocket (402) and the second sprocket (404) are connected through a chain (403).

3. A sludge scraping device for a sewage treatment sedimentation tank according to claim 1, characterized in that: The inclined guide plate (601) is installed at the lower bottom of the mud scraping plate (6), and the top plate (602) is installed at the upper top of the mud scraping plate (6).

4. A sludge scraping device for a sewage treatment lagoon according to claim 3 wherein: The electric telescopic rod (603) is installed above the top plate (602), the push frame (604) is installed at the telescopic end of the electric telescopic rod (603), and a plurality of brush blocks (605) are installed on the rear end face of the push frame (604).

5. A sludge scraping device for a sewage treatment lagoon according to claim 1, wherein: The first moving part (2) comprises a first lead screw (201) and a first guide rod (202), the first lead screw (201) and the first guide rod (202) are both provided with the first sliding block (203) on the outer wall, and the first lead screw (201) is provided with the first lead screw motor (204) at one end.

6. A sludge scraping device for a sewage treatment lagoon according to claim 5 wherein: The second moving part (3) comprises a second lead screw (301) and a second guide rod (302) respectively installed on the two first sliding blocks (203).

7. A sludge scraping device for a sewage treatment lagoon according to claim 6 wherein: The second lead screw (301) is provided with the second lead screw motor (303) at one end, the second lead screw (301) and the second guide rod (302) are both provided with the second sliding block (304) on the outer wall, and the cross frame (305) is installed between the two second sliding blocks (304).

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