Sludge discharge device of flocculation sedimentation tank

Abstract

The utility model belongs to the technical field of sludge treatment, and particularly relates to a flocculation sedimentation tank sludge discharge device which comprises a driving motor, a rotating shaft is mounted at the output end of the driving motor, a mounting frame is mounted on the outer side of the bottom end of the rotating shaft, a driving bevel gear is mounted at the bottom end of the rotating shaft, and a rotating shaft is rotatably mounted on one side of the mounting frame in a penetrating manner; a driven bevel gear is mounted at one end of the rotating shaft, a scrubbing brush is mounted on the outer side of the cleaning roller, and first scraping plates 12 are mounted on the bottom sides of connecting rods 11; the output end of a driving motor drives a rotating shaft to rotate, a driving bevel gear drives a driven bevel gear to rotate, a cleaning roller rotates along with the rotating shaft, a scrubbing brush also rotates along with the rotating shaft, the scrubbing brush makes contact with the inner wall of the bottom side of the sedimentation tank body to clean stubborn stains on the bottom side of the sedimentation tank, meanwhile, a mounting cavity also rotates along with the scrubbing brush, and a first scraper moves along with the mounting cavity. The first scraping plate is in contact with the inner wall of the bottom side of the sedimentation tank body, so that flocculated sludge at the edge of the sedimentation tank can be scraped and collected to the central position, and subsequent discharge is facilitated.

Description

Technical Field

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

[0002] In wastewater treatment plants, flocculation sedimentation tanks are key equipment for solid-liquid separation during wastewater treatment. By adding flocculants, suspended particles in the water are aggregated into larger flocs and settled to the bottom of the tank, thereby purifying the water. The sludge after sedimentation needs to be discharged from the sedimentation tank, so a sludge discharge device is required.

[0003] A Chinese patent with authorization announcement number CN221981635U discloses a peripheral drive sludge scraper for sewage treatment, including a sewage tank. A circular track is installed on the outside of the sewage tank and is coaxial with the sewage tank. The sludge suction assembly is installed on the circular track via a moving frame. An active motor drives the crossbeam to rotate periodically, so that the sludge scraping assembly scrapes the sludge from the inner wall of the sewage tank. At the same time, the sludge suction assembly extracts the scraped sludge. Through the structure of the scraper, the sludge scraped by the scraper will move along the scraper to the opening of the sludge suction pipe until it is extracted. Since it is periodic forward and reverse rotation, there is no need to worry about wiring issues. At the same time, the sewage discharge pipe can be made of corrugated pipe to cooperate with the rotation. The overall sludge scraping and suction is stable and effective.

[0004] However, the above-mentioned device still has some problems. In practical applications, during the flocculation and sedimentation process, some substances may adhere to the bottom of the tank, forming stubborn stains. Because of their strong adhesion to the bottom of the tank, the scraper cannot effectively remove these stains, which will reduce the sludge removal effect. Therefore, a sludge removal device for flocculation sedimentation tank is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a sludge discharge device for flocculation sedimentation tank.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A sludge removal device for a flocculation sedimentation tank, comprising a sedimentation tank body, a support frame installed on the top side of the sedimentation tank body, the support frame penetrating the sedimentation tank body, a drive motor installed at the middle of the top side of the support frame, a rotating shaft installed at the output end of the drive motor, an installation frame installed on the outer side of the bottom end of the rotating shaft, a driving bevel gear installed inside the installation frame on the outer side of the bottom end of the rotating shaft, a rotating shaft rotatably mounted through one side of the installation frame, a driven bevel gear installed at one end of the rotating shaft, the driving bevel gear and the driven bevel gear meshing with each other, the rotating shaft... A cleaning roller is installed on the outer side of the shaft, and a hard brush is installed on the outer side of the cleaning roller. The hard brush is in contact with the bottom inner wall of the sedimentation tank body. An installation cavity is installed at the top of the rotating shaft. Four connecting rods are installed at equal intervals at both ends of the bottom side of the installation cavity. A first scraper is installed on the bottom side of each connecting rod. The first scrapers are in contact with the bottom inner wall of the sedimentation tank body. The first scrapers at both ends of the installation cavity are symmetrically arranged. The first scrapers can scrape the flocculated sludge at the edge of the sedimentation tank towards the center, which helps to concentrate the sludge at the edge and facilitate subsequent discharge. At the same time, the hard brush can clean the stubborn stains on the bottom side of the sedimentation tank, further improving the sludge discharge effect of the sedimentation tank.

[0007] Preferably, the hard bristle brush is arranged in contact with the bottom inner wall of the sedimentation tank body, and the first scraper is in contact with the bottom inner wall of the sedimentation tank body. The first scrapers at both ends of the mounting cavity are symmetrically arranged to facilitate rapid sludge removal.

[0008] Preferably, two toothed drive wheels are installed on the outer side of the top end of the rotating shaft inside the mounting cavity, and two connecting shafts are symmetrically rotated at both ends of the mounting cavity. A toothed driven wheel is installed on the top end of each connecting shaft inside the mounting cavity. The toothed drive wheels and the toothed driven wheels at both ends are connected by internal toothed belts, so that the driving cleaning brush can move simultaneously.

[0009] Preferably, a cleaning brush is installed on the outer side of each connecting shaft, and a second scraper is installed on one side of each mounting cavity. Both the cleaning brush and the second scraper are in contact with the inner wall of the sedimentation tank body. The cleaning brush and the second scraper are in contact with the bottom inner wall of the sedimentation tank body but are not connected. The second scraper is in contact with the inner wall of the sedimentation tank body, which can clean the inner wall of the sedimentation tank and ensure the cleanliness of the inner wall of the sedimentation tank.

[0010] Preferably, a sludge discharge pipe is installed on the bottom side of the sedimentation tank body, and a sludge suction pump is installed on the bottom side of the sedimentation tank body. One end of the sludge discharge pipe is connected to the input end of the sludge suction pump, and the output end of the sludge suction pump is connected to a sludge discharge pipe. Through the operation of the sludge suction pump, the sludge in the sedimentation tank can be sucked in from the sludge discharge pipe and then discharged through the sludge discharge pipe to realize the sewage discharge function.

[0011] Preferably, three support legs are equidistantly installed on the bottom side of the sedimentation tank body, and a control panel is installed on one side of the sedimentation tank body. The control panel is electrically connected to the electrical components inside the device, and the control panel is used to operate and control the electrical components inside the device, thereby realizing centralized control of the electrical components inside the device.

[0012] The advantages of this utility model are:

[0013] 1. The output end of the drive motor of this utility model drives the rotating shaft to rotate, the active bevel gear drives the driven bevel gear to rotate, the cleaning roller rotates accordingly, and the hard brush also rotates accordingly. The hard brush contacts the bottom inner wall of the sedimentation tank body to clean the stubborn stains on the bottom side of the sedimentation tank. At the same time, the mounting cavity also rotates, and the first scraper moves accordingly. The first scraper contacts the bottom inner wall of the sedimentation tank body, which can scrape the flocculated sludge at the edge of the sedimentation tank towards the center position, which is convenient for subsequent discharge.

[0014] 2. In this utility model, the toothed driving wheel rotates together with the rotating shaft. The rotation of the toothed driving wheel drives the toothed driven wheel to rotate through the internal toothed belt, so the connecting shaft also rotates. The cleaning brush installed on the outside of the connecting shaft rotates accordingly to clean the inner wall of the sedimentation tank body. The second scraper also moves with the rotation of the mounting cavity. The second scraper contacts the inner wall of the sedimentation tank body to further clean the inner wall of the sedimentation tank and ensure the cleanliness of the inner wall of the sedimentation tank. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 A cross-sectional structural diagram of the sludge removal device for the sedimentation tank;

[0018] Figure 3 This is a schematic diagram of the first structure of the sludge scraper assembly;

[0019] Figure 4 This is a schematic diagram of the second structure of the sludge scraper assembly;

[0020] Figure 5 A schematic diagram of the drive assembly for the second scraper.

[0021] In the diagram: 1. Sedimentation tank body; 2. Support frame; 3. Drive motor; 4. Rotating shaft; 5. Mounting frame; 6. Driving bevel gear; 7. Rotating shaft; 8. Driven bevel gear; 9. Cleaning roller; 10. Hard brush; 11. Connecting rod; 12. First scraper; 15. Mounting cavity; 16. Toothed drive wheel; 17. Connecting shaft; 18. Toothed driven wheel; 19. Internal toothed belt; 20. Cleaning brush; 21. Second scraper; 22. Sludge discharge pipe; 23. Sludge suction pump; 24. Sludge discharge pipe; 25. Support leg; 26. Control panel. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 As shown, a sludge removal device for a flocculation sedimentation tank includes a sedimentation tank body 1. A support frame 2 is installed on the top side of the sedimentation tank body 1, and the support frame 2 penetrates the sedimentation tank body 1. A drive motor 3 is installed at the middle of the top side of the support frame 2. A rotating shaft 4 is installed at the output end of the drive motor 3. An installation frame 5 is installed on the outer side of the bottom end of the rotating shaft 4. An active bevel gear 6 is installed inside the installation frame 5 on the outer side of the bottom end of the rotating shaft 4. A rotating shaft 7 is rotatably installed through one side of the installation frame 5. A driven bevel gear 8 is installed at one end of the rotating shaft 7. The active bevel gear 6 and the driven bevel gear 8 mesh with each other. A cleaning roller 9 is installed on the outer side of the rotating shaft 7. A hard brush 10 is installed on the outer side of the cleaning roller 9. An installation cavity 15 is installed at the top end of the rotating shaft 4. Four connecting rods 11 are equidistantly installed at both ends of the bottom side of the installation cavity 15. A first scraper 12 is installed on the bottom side of each connecting rod 11.

[0024] The hard bristle brush 10 is in contact with the bottom inner wall of the sedimentation tank body 1, and the first scraper 12 is in contact with the bottom inner wall of the sedimentation tank body 1. The first scraper 12 at both ends of the mounting cavity 15 is symmetrically arranged.

[0025] Three support legs 25 are equidistantly installed on the bottom side of the sedimentation tank body 1. A control panel 26 is installed on one side of the sedimentation tank body 1. The control panel 26 is electrically connected to the electrical components inside the device and is used to control the operation of the electrical components inside the device. During operation, in practical applications, some substances may adhere to the bottom of the tank during the flocculation and sedimentation process, forming stubborn stains. Due to their strong adhesion to the bottom of the tank, the scraper cannot effectively remove these stains, thus reducing the sludge removal effect. After the water at the top of the sedimentation tank after flocculation is discharged, the drive motor 3 starts, and its output end drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, the active bevel gear 6 rotates accordingly. Since the active bevel gear 6 and the driven bevel gear 8 mesh with each other, the rotation of the active bevel gear 6 drives the driven bevel gear 8 to rotate, thereby causing the rotating shaft 7 connected to the driven bevel gear 8 to rotate. The cleaning roller 9 installed on the outside of the rotating shaft 7 rotates accordingly, and the hard brush 10 on the outside of the cleaning roller 9 also rotates accordingly. The hard brush 10 contacts the bottom inner wall of the sedimentation tank body 1 to clean the stubborn stains on the bottom of the sedimentation tank. At the same time, the mounting cavity 15 also rotates accordingly, and the first scraper 12 installed at both ends of the bottom side of the mounting cavity 15 through the connecting rod 11 moves accordingly. The first scraper 12 contacts the bottom inner wall of the sedimentation tank body 1, which can scrape the sludge flocculated at the edge of the sedimentation tank towards the center position, which is convenient for subsequent discharge.

[0026] Please see Figure 1-5 As shown, two toothed drive wheels 16 are installed on the outer side of the top end of the rotating shaft 4 inside the mounting cavity 15. Two connecting shafts 17 are symmetrically rotated at both ends of the mounting cavity 15. A toothed driven wheel 18 is installed on the top end of each connecting shaft 17 inside the mounting cavity 15. The toothed drive wheels 16 and the toothed driven wheels 18 at both ends are connected by internal toothed belts 19.

[0027] A cleaning brush 20 is installed on the outer side of the connecting shaft 17, and a second scraper 21 is installed on one side of the mounting cavity 15. The cleaning brush 20 and the second scraper 21 are both in contact with the inner wall of the sedimentation tank body 1, and the cleaning brush 20 and the second scraper 21 are in contact with the bottom inner wall of the sedimentation tank body 1 but are not connected.

[0028] A sludge discharge pipe 22 is installed on the bottom side of the sedimentation tank body 1, and a sludge suction pump 23 is also installed on the bottom side of the sedimentation tank body 1. One end of the sludge discharge pipe 22 is connected to the input end of the sludge suction pump 23, and the output end of the sludge suction pump 23 is connected to a sludge discharge pipe 24. During operation, some flocs and impurities will adhere to the inner wall of the sedimentation tank during sedimentation. If not cleaned in time, these adhered substances will accumulate, which will reduce the effective volume of the sedimentation tank and decrease its treatment capacity. Furthermore, the impurities accumulated over a long period of time will breed bacteria and microorganisms, causing secondary pollution to the water quality and affecting subsequent sewage treatment. As a result, the two toothed drive wheels 16 rotate together with the rotating shaft 4. The toothed drive wheels 16 and the toothed driven wheels 18 at both ends are connected by internal toothed belts 19. The rotation of the toothed drive wheels 16 drives the toothed driven wheels 18 to rotate through the internal toothed belts 19, so the connecting shaft 17 will also rotate. The cleaning brush 20 installed on the outside of the connecting shaft 17 will rotate accordingly to clean the inner wall of the sedimentation tank body 1. The second scraper 21 also moves with the rotation of the mounting cavity 15. The second scraper 21 contacts the inner wall of the sedimentation tank body 1 to further clean the inner wall of the sedimentation tank and ensure the cleanliness of the inner wall of the sedimentation tank.

[0029] After the sludge is scraped to the center of the bottom of the sedimentation tank, the suction pump 23 is started. When the suction pump 23 is working, the sludge in the sedimentation tank is sucked in from the sludge discharge pipe 22 under its suction force. The sucked-in sludge is discharged through the sludge discharge pipe 24 after passing through the suction pump 23, thus realizing the sewage discharge function of the entire sludge discharge device.

[0030] Working principle: After the water at the top of the flocculated sedimentation tank is discharged, the drive motor 3 starts and its output end drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, the active bevel gear 6 rotates accordingly. Since the active bevel gear 6 and the driven bevel gear 8 mesh with each other, the rotation of the active bevel gear 6 drives the driven bevel gear 8 to rotate, thereby causing the rotating shaft 7 connected to the driven bevel gear 8 to rotate. The cleaning roller 9 installed on the outside of the rotating shaft 7 rotates accordingly, and the hard brush 10 on the outside of the cleaning roller 9 also rotates accordingly. The hard brush 10 contacts the bottom inner wall of the sedimentation tank body 1 and cleans the stubborn stains on the bottom of the sedimentation tank. At the same time, the mounting cavity 15 also rotates accordingly. The first scraper 12 installed at both ends of the bottom side of the mounting cavity 15 through the connecting rod 11 moves accordingly. The first scraper 12 contacts the bottom inner wall of the sedimentation tank body 1 and can scrape the flocculated sludge at the edge of the sedimentation tank towards the center position for easy subsequent discharge.

[0031] Two toothed drive wheels 16 rotate together with the rotating shaft 4. The toothed drive wheels 16 and the toothed driven wheels 18 at both ends are connected by internal toothed belts 19. The rotation of the toothed drive wheels 16 drives the toothed driven wheels 18 to rotate through the internal toothed belts 19, so the connecting shaft 17 will also rotate. The cleaning brush 20 installed on the outside of the connecting shaft 17 will rotate accordingly to clean the inner wall of the sedimentation tank body 1. The second scraper 21 also moves with the rotation of the mounting cavity 15. The second scraper 21 contacts the inner wall of the sedimentation tank body 1 to further clean the inner wall of the sedimentation tank and ensure the cleanliness of the inner wall of the sedimentation tank.

[0032] After the sludge is scraped to the center of the bottom of the sedimentation tank, the suction pump 23 is started. When the suction pump 23 is working, the sludge in the sedimentation tank is sucked in from the sludge discharge pipe 22 under its suction force. The sucked-in sludge is discharged through the sludge discharge pipe 24 after passing through the suction pump 23, thus realizing the sewage discharge function of the entire sludge discharge device.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sludge removal device for a flocculation sedimentation tank, characterized in that: The system includes a sedimentation tank body (1), a support frame (2) installed on the top side of the sedimentation tank body (1), the support frame (2) penetrating the sedimentation tank body (1), a drive motor (3) installed at the middle of the top side of the support frame (2), a rotating shaft (4) installed at the output end of the drive motor (3), a mounting frame (5) installed on the outer side of the bottom end of the rotating shaft (4), and an active bevel gear (6) installed inside the mounting frame (5) on the outer side of the bottom end of the rotating shaft (4). A rotating shaft (6) is mounted through one side of the mounting frame (5). A rotating shaft (7) is installed, and a driven bevel gear (8) is installed at one end of the rotating shaft (7). The driving bevel gear (6) and the driven bevel gear (8) mesh with each other. A cleaning roller (9) is installed on the outside of the rotating shaft (7). A hard brush (10) is installed on the outside of the cleaning roller (9). An installation cavity (15) is installed at the top of the rotating shaft (4). Four connecting rods (11) are installed at equal intervals at both ends of the bottom side of the installation cavity (15). A first scraper (12) is installed on the bottom side of each connecting rod (11).

2. The sludge removal device for a flocculation sedimentation tank according to claim 1, characterized in that: The hard brush (10) is in contact with the bottom inner wall of the sedimentation tank body (1), and the first scraper (12) is in contact with the bottom inner wall of the sedimentation tank body (1). The first scraper (12) at both ends of the mounting cavity (15) is symmetrically arranged.

3. The sludge removal device for a flocculation sedimentation tank according to claim 2, characterized in that: Two toothed drive wheels (16) are installed on the outer side of the top of the rotating shaft (4) inside the mounting cavity (15). Two connecting shafts (17) are symmetrically rotated at both ends of the mounting cavity (15). A toothed driven wheel (18) is installed on the top of each connecting shaft (17) inside the mounting cavity (15). The toothed drive wheel (16) and the toothed driven wheels (18) at both ends are connected by internal toothed belts (19).

4. The sludge removal device for a flocculation sedimentation tank according to claim 3, characterized in that: A cleaning brush (20) is installed on the outer side of each connecting shaft (17), and a second scraper (21) is installed on one side of each mounting cavity (15). The cleaning brush (20) and the second scraper (21) are both in contact with the inner wall of the sedimentation tank body (1), and the cleaning brush (20) and the second scraper (21) are in contact with the bottom inner wall of the sedimentation tank body (1) but are not connected.

5. The sludge removal device for a flocculation sedimentation tank according to claim 4, characterized in that: A sludge discharge pipe (22) is installed on the bottom side of the sedimentation tank body (1), and a sludge suction pump (23) is installed on the bottom side of the sedimentation tank body (1). One end of the sludge discharge pipe (22) is connected to the input end of the sludge suction pump (23), and the output end of the sludge suction pump (23) is connected to a sludge discharge pipe (24).

6. The sludge removal device for a flocculation sedimentation tank according to claim 5, characterized in that: Three support legs (25) are equidistantly installed on the bottom side of the sedimentation tank body (1). A control panel (26) is installed on one side of the sedimentation tank body (1). The control panel (26) is electrically connected to the electrical components inside the device. The control panel (26) is used to control the operation of the electrical components inside the device.

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