A bottom anti-silt sludge discharge device of a cyclone sedimentation tank

Abstract

This utility model discloses a bottom anti-sludge removal device for a vortex sedimentation tank, belonging to the technical field of water treatment equipment. The device includes: a vortex sedimentation tank body; a water storage tank cover fixedly installed on the top of the vortex sedimentation tank body; a central pipe fixedly installed on the top of the water storage tank cover; the lower end of the central pipe extending into the interior of the vortex sedimentation tank body; and an installation plate fixedly installed on the top of the water storage tank cover. In this device, a transmission worm gear drives an inner conical scraper to rotate via a rotating transmission rod, scraping off the sludge adhering to the bottom inner wall and the inner wall of the conical surface of the vortex sedimentation tank body. This allows the ring scraper to remove the sludge adhering to the circumferential inner wall of the vortex sedimentation tank body, preventing the sludge adhering to the inner wall of the vortex sedimentation tank from accumulating and hardening over time, improving sludge removal efficiency, reducing the difficulty of subsequent manual sludge cleaning, and decreasing the frequency of manual cleaning and maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and more specifically, to a sludge removal device for preventing sedimentation at the bottom of a vortex sedimentation tank. Background Technology

[0002] A vortex sedimentation tank is a highly efficient sedimentation device that utilizes both centrifugal force and gravity to achieve solid-liquid separation. Its core structure is a cylindrical or conical container. Wastewater enters tangentially and forms a rotating vortex. Higher-density suspended particles are thrown against the tank wall by centrifugal force and settle along the sidewalls to the bottom sludge collection area. The clarified water is discharged through a central overflow weir. This design significantly improves sedimentation efficiency and is particularly suitable for treating wastewater with high concentrations of suspended solids or fine particles. It features a small footprint, fast processing speed, and good sludge thickening effect, and is widely used in industrial wastewater treatment in mining, metallurgy, and chemical industries.

[0003] Since the sludge at the bottom of the pool and in the conical section slides down naturally by gravity, high-concentration or sticky sludge easily adheres to the pool walls and the bottom of the cone. After long-term accumulation, it hardens and clumps, resulting in poor sludge discharge and even blockage of the sludge discharge pipe. Traditional sludge discharge methods, such as static pressure sludge discharge or simple suction, are difficult to completely remove the sludge attached to the pool walls. Some sludge remains in the pool, affecting the sedimentation effect and increasing the burden of subsequent manual cleaning. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a bottom anti-sludge removal device for a vortex sedimentation tank. This device can scrape off all the sludge on the inner wall of the vortex sedimentation tank, preventing the sludge adhering to the inner wall of the vortex sedimentation tank from accumulating and hardening over a long period of time, improving sludge removal efficiency, reducing the difficulty of subsequent manual sludge cleaning, and reducing the frequency of manual cleaning and maintenance costs.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A bottom anti-sludge removal device for a vortex sedimentation tank includes:

[0009] A vortex sedimentation tank body, wherein a water storage and drainage tank cover is fixedly installed on the top of the vortex sedimentation tank body, a central pipe is fixedly installed on the top of the water storage and drainage tank cover, the lower end of the central pipe extends into the interior of the vortex sedimentation tank body, an installation plate is fixedly installed on the top of the water storage and drainage tank cover, and a sludge discharge pipe is fixedly connected to one side of the inner wall of the vortex sedimentation tank body, one end of the sludge discharge pipe extends to the outside of the vortex sedimentation tank body.

[0010] A rotary control box is fixedly connected to the top of a mounting plate. A rotary transmission rod is rotatably connected to the bottom of the mounting plate. An inner conical scraper is fixedly connected to the lower end of the rotary transmission rod. A transmission worm gear is rotatably connected between the mounting plate and the rotary control box. The transmission worm gear is fixedly connected to the rotary transmission rod. A transmission worm is rotatably connected between the inner walls of the two sides of the rotary control box. The transmission worm meshes with the transmission worm gear.

[0011] A lifting control box is fixedly connected to the top of a mounting plate. A lifting threaded rod is rotatably connected between the mounting plate and the lifting control box. Two lifting transmission rods slide through the top of the mounting plate. The lower ends of the two lifting transmission rods extend into the interior of the vortex sedimentation tank. A ring scraper is fixedly connected to the lower ends of the two lifting transmission rods. A lifting transmission plate is fixedly connected to the upper ends of the two lifting transmission rods. The lifting transmission plate is threadedly connected to the lifting threaded rod.

[0012] As a preferred embodiment of this utility model, a drive motor is fixedly installed on one outer surface of the rotary control box, and the output end of the drive motor is fixedly connected to the transmission worm gear.

[0013] In a preferred embodiment of this utility model, the rotating transmission rod rotates through the central tube.

[0014] As a preferred embodiment of this utility model, a lifting motor is fixedly installed on the top of the lifting control box, and the output end of the lifting motor is fixedly connected to the lifting threaded rod.

[0015] In a preferred embodiment of this utility model, a limit rod is fixedly connected between the mounting plate and the lifting control box, and the lifting transmission plate is slidably sleeved on the limit rod.

[0016] As a preferred embodiment of this utility model, both of the lifting transmission rods are made of stainless steel.

[0017] 3. Beneficial effects

[0018] Compared with existing technologies, this utility model provides a bottom anti-sludge removal device for vortex sedimentation tanks, which has the following beneficial effects:

[0019] The bottom anti-sludge removal device of this cyclone sedimentation tank works by controlling the start of a drive motor, which rotates a transmission worm gear, causing the transmission worm wheel to rotate. This, in turn, drives a rotating transmission rod to rotate an inner conical scraper, scraping off the sludge adhering to the bottom and inner conical walls of the cyclone sedimentation tank. Simultaneously, by controlling the start of a lifting motor, the lifting threaded rod rotates, causing a lifting transmission plate to descend. This, in turn, causes two lifting transmission rods to lower annular scrapers, scraping off the sludge adhering to the inner circumference of the cyclone sedimentation tank. The sludge is then pumped out from the bottom inner wall of the cyclone sedimentation tank via a sludge pump and discharge pipe. This prevents the sludge from accumulating and hardening on the inner wall of the cyclone sedimentation tank over a long period, improves sludge removal efficiency, reduces the difficulty of subsequent manual sludge cleaning, and decreases the frequency and maintenance costs of manual cleaning. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a side view of a partial structural section of the present invention;

[0022] Figure 3 This is a sectional view of the rear view portion of the structure of this utility model;

[0023] Figure 4 This is a partial structural cross-sectional view of the water storage tank cover of this utility model;

[0024] Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0025] Explanation of the labels in the diagram:

[0026] 1. Swirl sedimentation tank body; 2. Sludge discharge pipe; 3. Storage and drainage tank cover; 4. Mounting plate; 5. Rotary control box; 6. Lifting control box; 7. Central pipe; 8. Ring scraper; 9. Lifting transmission rod; 10. Rotary transmission rod; 11. Inner conical scraper; 12. Lifting threaded rod; 13. Lifting transmission plate; 14. Lifting motor; 15. Limit rod; 16. Transmission worm gear; 17. Transmission worm; 18. Drive motor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Example:

[0029] Please see Figures 1-5 A bottom anti-sludge removal device for a vortex sedimentation tank, comprising:

[0030] A vortex sedimentation tank body 1 is provided. A water storage and drainage tank cover 3 is fixedly installed on the top of the vortex sedimentation tank body 1. A central pipe 7 is fixedly installed on the top of the water storage and drainage tank cover 3. The lower end of the central pipe 7 extends into the interior of the vortex sedimentation tank body 1. An installation plate 4 is fixedly installed on the top of the water storage and drainage tank cover 3. A sludge discharge pipe 2 is fixedly connected to one side of the inner wall of the vortex sedimentation tank body 1. One end of the sludge discharge pipe 2 extends to the outside of the vortex sedimentation tank body 1.

[0031] A rotary control box 5 is fixedly connected to the top of a mounting plate 4. A rotary transmission rod 10 is rotatably connected to the bottom of the mounting plate 4. An inner conical scraper 11 is fixedly connected to the lower end of the rotary transmission rod 10. A transmission worm gear 16 is rotatably connected between the mounting plate 4 and the rotary control box 5. The transmission worm gear 16 is fixedly connected to the rotary transmission rod 10. A transmission worm 17 is rotatably connected between the inner walls of both sides of the rotary control box 5. The transmission worm 17 meshes with the transmission worm gear 16.

[0032] The lifting control box 6 is fixedly connected to the top of the mounting plate 4. A lifting threaded rod 12 is rotatably connected between the mounting plate 4 and the lifting control box 6. Two lifting transmission rods 9 slide through the top of the mounting plate 4. The lower ends of the two lifting transmission rods 9 extend into the interior of the vortex sedimentation tank 1. A ring scraper 8 is fixedly connected to the lower ends of the two lifting transmission rods 9. A lifting transmission plate 13 is fixedly connected to the upper ends of the two lifting transmission rods 9. The lifting transmission plate 13 is threadedly connected to the lifting threaded rod 12.

[0033] In a specific embodiment of this utility model, the sludge discharge pipe 2 is connected to the sludge pump at one end located outside the vortex sedimentation tank 1, and the lower end of the sludge discharge pipe 2 is located on the upper side of the bottom inner wall of the vortex sedimentation tank 1. The sludge pump and the sludge discharge pipe 2 extract the sludge from the bottom inner wall of the vortex sedimentation tank 1, and water is tangentially introduced through the water inlet pipe on the vortex sedimentation tank 1, generating a high-speed rotating water flow. Centrifugal force is used to throw the denser solid particles against the tank wall and settle to the bottom, while the clear water overflows from the center and is discharged through the central pipe 7. The inner conical scraper 11 is in contact with the bottom inner wall and the conical inner wall of the vortex sedimentation tank 1, and the annular scraper 8 is in contact with the circumferential inner wall of the vortex sedimentation tank 1. By controlling the rotation of the transmission worm gear 17, the transmission worm wheel 16 is driven to rotate, which in turn drives the inner conical scraper 11 to rotate via the rotation transmission rod 10. This scrapes off the sludge adhering to the bottom inner wall and the inner conical inner wall of the cyclone sedimentation tank 1. Simultaneously, by controlling the rotation of the lifting threaded rod 12, the lifting transmission plate 13 is driven to descend, which in turn drives the two lifting transmission rods 9 to descend, causing the ring scraper 8 to scrape off the sludge adhering to the inner circumference of the cyclone sedimentation tank 1. This prevents the sludge adhering to the inner wall of the cyclone sedimentation tank 1 from accumulating and hardening over a long period of time, improves sludge discharge efficiency, reduces the difficulty of subsequent manual sludge cleaning, and reduces the frequency of manual cleaning and maintenance costs.

[0034] Specifically, a drive motor 18 is fixedly installed on one outer surface of the rotary control box 5, and the output end of the drive motor 18 is fixedly connected to the transmission worm gear 17.

[0035] In this embodiment, the transmission rod 10 is rotated to start the transmission worm gear 17.

[0036] Specifically, the rotating transmission rod 10 rotates through the central tube 7.

[0037] In this embodiment, the rotating transmission rod 10 passes through the entire central tube 7. A stabilizing plate that does not completely block the upward flow of water is installed inside the central tube 7. The rotating transmission rod 10 passes through the stabilizing plate, and the stabilizing plate ensures that the rotating transmission rod 10 does not shake during rotation.

[0038] Specifically, a lifting motor 14 is fixedly installed on the top of the lifting control box 6, and the output end of the lifting motor 14 is fixedly connected to the lifting threaded rod 12.

[0039] In this embodiment, the lifting motor 14 is started to drive the lifting threaded rod 12 to rotate.

[0040] Specifically, a limit rod 15 is fixedly connected between the mounting plate 4 and the lifting control box 6, and the lifting transmission plate 13 is slidably sleeved on the limit rod 15.

[0041] In this embodiment, the limiting rod 15 ensures that the lifting transmission plate 13 remains stable during the lifting motion.

[0042] Specifically, both lifting transmission rods 9 are made of stainless steel.

[0043] In this embodiment, the surfaces of the two lifting transmission rods 9 are not easily corroded and have a long service life.

[0044] Working principle: Water is tangentially introduced through the inlet pipe on the vortex sedimentation tank 1, generating a high-speed rotating water flow. Centrifugal force causes denser solid particles to be thrown against the tank wall and settle to the bottom, while the clear water overflows from the center and is discharged through the central pipe 7. The inner conical scraper 11 is in contact with the bottom inner wall and the inner conical wall of the vortex sedimentation tank 1, and the annular scraper 8 is in contact with the circumferential inner wall of the vortex sedimentation tank 1. By controlling the start of the drive motor 18, the transmission worm gear 17 is rotated, which in turn drives the transmission worm wheel 16 to rotate. The transmission worm wheel 16, through the rotating transmission rod 10, drives the inner conical scraper 11 to rotate, thus amplifying the vortex... The sludge adhering to the bottom inner wall and conical inner wall of the vortex sedimentation tank 1 is scraped off. At the same time, the lifting motor 14 is started, which drives the lifting threaded rod 12 to rotate, causing the lifting transmission plate 13 to descend. This causes the two lifting transmission rods 9 to drive the ring scraper 8 to descend, so that the ring scraper 8 scrapes off the sludge adhering to the circumferential inner wall of the vortex sedimentation tank 1. The sludge at the bottom inner wall of the vortex sedimentation tank 1 is then pumped out by the sludge pump and sludge discharge pipe 2. This prevents the sludge adhering to the inner wall of the vortex sedimentation tank 1 from accumulating and hardening over a long period of time, improves sludge discharge efficiency, reduces the difficulty of subsequent manual sludge cleaning, and reduces the frequency of manual cleaning and maintenance costs.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A sludge removal and anti-sludge discharge device at the bottom of a vortex sedimentation tank, characterized in that, include: A vortex sedimentation tank (1) is provided with a storage and drainage tank cover (3) fixedly installed on the top of the vortex sedimentation tank (1). A central pipe (7) is fixedly installed on the top of the storage and drainage tank cover (3). The lower end of the central pipe (7) extends into the interior of the vortex sedimentation tank (1). An installation plate (4) is fixedly installed on the top of the storage and drainage tank cover (3). A sludge discharge pipe (2) is fixedly connected to one side of the inner wall of the vortex sedimentation tank (1). One end of the sludge discharge pipe (2) extends to the outside of the vortex sedimentation tank (1). A rotary control box (5) is fixedly connected to the top of a mounting plate (4). A rotary transmission rod (10) is rotatably connected to the bottom of the mounting plate (4). An inner conical scraper (11) is fixedly connected to the lower end of the rotary transmission rod (10). A transmission worm gear (16) is rotatably connected between the mounting plate (4) and the rotary control box (5). The transmission worm gear (16) is fixedly connected to the rotary transmission rod (10). A transmission worm (17) is rotatably connected between the inner walls of both sides of the rotary control box (5). The transmission worm (17) meshes with the transmission worm gear (16). A lifting control box (6) is fixedly connected to the top of the mounting plate (4). A lifting threaded rod (12) is rotatably connected between the mounting plate (4) and the lifting control box (6). Two lifting transmission rods (9) slide through the top of the mounting plate (4). The lower ends of the two lifting transmission rods (9) extend into the interior of the vortex sedimentation tank (1). A ring scraper (8) is fixedly connected to the lower ends of the two lifting transmission rods (9). A lifting transmission plate (13) is fixedly connected to the upper ends of the two lifting transmission rods (9). The lifting transmission plate (13) is threadedly connected to the lifting threaded rod (12).

2. The sludge removal and anti-sludge discharge device at the bottom of a vortex sedimentation tank according to claim 1, characterized in that: A drive motor (18) is fixedly installed on one side of the outer surface of the rotary control box (5), and the output end of the drive motor (18) is fixedly connected to the transmission worm (17).

3. The sludge removal and anti-sludge discharge device at the bottom of a vortex sedimentation tank according to claim 1, characterized in that: The rotating transmission rod (10) rotates through the central tube (7).

4. The sludge removal and anti-sludge discharge device at the bottom of a vortex sedimentation tank according to claim 1, characterized in that: A lifting motor (14) is fixedly installed on the top of the lifting control box (6), and the output end of the lifting motor (14) is fixedly connected to the lifting threaded rod (12).

5. The sludge removal and anti-sludge discharge device at the bottom of a vortex sedimentation tank according to claim 1, characterized in that: The mounting plate (4) is fixedly connected to the lifting control box (6) with a limit rod (15), and the lifting transmission plate (13) is slidably sleeved on the limit rod (15).

6. The sludge removal and anti-sludge discharge device at the bottom of a vortex sedimentation tank according to claim 1, characterized in that: Both of the aforementioned lifting transmission rods (9) are made of stainless steel.

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