A circular sedimentation tank with sludge discharger

Abstract

This utility model relates to the technical field of sludge removal machines for sedimentation tanks, and discloses a sludge removal machine for circular sedimentation tanks. It includes a sludge removal structure, a motor cover, a crossbeam, guardrails, a sedimentation tank support, a sedimentation tank, a tank bottom, a sludge discharge port, a vertical bearing seat, and an inclined support plate. The sedimentation tank is circular, and multiple sets of the sedimentation tank support are symmetrically and vertically fixed to the bottom edge of the sedimentation tank. The tank bottom is welded and fixed to the bottom of the sedimentation tank, and the tank bottom is funnel-shaped. The sludge discharge port is located at the center of the bottom of the tank bottom. The crossbeam is horizontally fixed to the upper middle part of the sedimentation tank, and guardrails are provided at both ends of the crossbeam. The motor cover is fixed to the upper center of the crossbeam, and a motor is fixed inside the motor cover. The sludge removal structure is located inside the sedimentation tank, below the crossbeam. The vertical bearing seat is located at the center of the sludge discharge port. This utility model can improve the rotational stability of the sludge removal structure, making its movement more stable, thereby ensuring the sludge scraping effect after continuous and long-term operation.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge removal machines for sedimentation tanks, and in particular to a sludge removal machine for circular sedimentation tanks. Background Technology

[0002] Sedimentation tanks play a crucial role in wastewater treatment. By controlling the water flow rate and residence time in the tank, solid particles in the water gradually settle to the bottom due to gravity, thus separating water from solid particles and purifying the water. However, with prolonged use, the accumulation of sludge and sediment at the bottom of the sedimentation tank can affect its efficiency, necessitating regular cleaning.

[0003] Currently, sludge scrapers are mainly used to clean the sludge at the bottom of sedimentation tanks, ensuring the continuous and efficient operation of the sedimentation tanks. However, the sludge scraping mechanisms in existing technologies are mostly suspended and suspended, which are prone to deformation after a certain period of use due to the obstruction of solid sediment at the bottom of the tank. This results in low stability during operation and affects the sludge scraping effect. For example, the Chinese utility model patent with application number CN202420429746.3, entitled "A Sludge Scraper for Water Treatment Sedimentation Tanks," can ensure the uniform and continuous removal of sludge from the bottom of the tank during the sludge scraping process, guaranteeing the sludge scraping effect and helping to improve the sludge scraping efficiency. It can also be replaced individually without replacing the entire sludge scraping mechanism or scraper rod, greatly simplifying the maintenance process, reducing maintenance costs, and improving the versatility and adaptability of the sludge scraping device. However, its sludge scraper motor output is connected to a rotating shaft, and several sludge scraping mechanisms are installed on the rotating shaft. This means that the rotating shaft and the sludge scraping mechanisms are actually suspended and suspended. Due to the large weight of the sludge scraping mechanisms, their stability during operation is low, affecting the sludge scraping effect. For example, the Chinese utility model patent with application number CN202420293703.7, entitled "A Sedimentation Tank Agitator and Sludge Scraper", also features a rotating column, long rod, and cleaning scraper fixedly connected to the motor output end, which are suspended in the air. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a sludge removal machine for a circular sedimentation tank, which can improve the rotational stability of the sludge removal structure and make its movement more stable, thereby ensuring the sludge scraping effect after continuous and long-term operation.

[0005] This utility model is achieved using the following technical solution: a sludge removal machine for a circular sedimentation tank, comprising a sludge removal structure, a motor cover, a crossbeam, a guardrail, a sedimentation tank support, a sedimentation tank, a tank bottom, a sludge discharge port, a vertical bearing seat, and an inclined support plate. The sedimentation tank is circular, and multiple sets of the sedimentation tank support are symmetrically and vertically fixed to the bottom edge of the sedimentation tank. The tank bottom is welded and fixed to the bottom of the sedimentation tank, and the tank bottom is funnel-shaped. The sludge discharge port is located at the center of the bottom of the tank bottom. The crossbeam is horizontally fixed to the upper middle part of the sedimentation tank. Guardrails are provided at both ends; the motor cover is fixed to the upper center of the cross frame, and the motor is fixed inside the motor cover; the sludge discharge structure is set inside the sedimentation tank and is located below the cross frame; the vertical bearing seat is set in the center of the sludge discharge port, and the outer side of the vertical bearing seat is connected to the inner wall of the sludge discharge port through several inclined support plates; the upper end of the sludge discharge structure is connected to the motor shaft, and the lower end of the sludge discharge structure is fixed on the vertical bearing seat. The motor drives the sludge discharge structure to rotate, collecting the sediment at the bottom of the tank and discharging it from the sludge discharge port.

[0006] Furthermore, the sludge removal structure includes a rotating shaft, a scraper mounting rod, a strength reinforcing rod, scrapers, and a mounting cylinder. The mounting cylinder is fixed to the upper outer side of the rotating shaft, and the scraper mounting rod is obliquely fixed to the lower outer side of the rotating shaft. Each scraper mounting rod has several scrapers evenly spaced on it. The bottom end of the mounting cylinder is connected to the end of the scraper mounting rod through a strength reinforcing rod.

[0007] Furthermore, a sleeve is fitted onto the lower part of the rotating shaft, and the sleeve is fixed to the outside of the rotating shaft by screws. An arc-shaped retaining ring is integrally formed at the bottom end of the sleeve, and a through hole is also provided in the center of the arc-shaped retaining ring. The arc-shaped retaining ring is located above the top of the vertical bearing seat.

[0008] Furthermore, a spiral push rod is coaxially fixed at the bottom end of the rotating shaft. The spiral push rod is located in the center of the sludge discharge port and extends from the bottom end of the vertical bearing seat to the bottom end of the sludge discharge port.

[0009] Furthermore, a strength-reinforcing ring is fixed to the upper inner side of the sedimentation tank.

[0010] Furthermore, the scraper and scraper mounting rod are inclined, and the projections of every two scrapers in the inclined direction partially overlap.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model discloses a sludge removal machine for a circular sedimentation tank. The machine uses a motor to drive a rotating shaft, and a scraper mounted on a scraper mounting rod pushes the sludge and sediment on the bottom of the sedimentation tank to converge into the tank. When the rotating shaft rotates, its upper end is connected to the motor shaft, and its lower end is fixed on a vertical bearing seat, which can provide support in the vertical direction, making its movement more stable and thus improving the rotational stability of the sludge removal structure, ensuring the sludge scraping effect after continuous and long-term operation.

[0013] 2. The present invention provides a sludge discharge machine for a circular sedimentation tank, wherein a spiral push rod is coaxially fixed at the bottom end of the rotating shaft. The spiral push rod extends from the bottom end of the vertical bearing seat to the bottom end of the sludge discharge port, so that the sludge and sediments collected at the bottom of the sedimentation tank and discharged at the sludge discharge port can be discharged more effectively. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the sludge removal machine for a circular sedimentation tank according to this utility model;

[0015] Figure 2 This is the front view of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention after removing the sedimentation tank support and the sedimentation tank;

[0017] Figure 4 This is a structural diagram of the mud discharge structure, motor cover, cross frame, and guardrail in this utility model;

[0018] Figure 5 This is the front view of the present invention after the sedimentation tank support has been removed.

[0019] In the diagram: sludge discharge structure-3; motor cover-4; sedimentation tank support-11; sedimentation tank-12; strength reinforcing ring-13; tank bottom-14; sludge discharge port-15; horizontal frame-21; guardrail-22; rotating shaft-31; scraper mounting rod-32; strength reinforcing rod-33; scraper-34; mounting cylinder-35; vertical bearing seat-51; inclined support plate-52; sleeve-53; arc-shaped retaining ring-54; spiral push rod-55. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0021] The purpose of this invention is to address the shortcomings of existing technologies by providing a sludge removal machine for circular sedimentation tanks.

[0022] Example 1

[0023] This embodiment provides a sludge removal machine for a circular sedimentation tank, referring to... Figures 1-5 As shown, the system includes a sludge discharge structure 3, a motor cover 4, a crossbeam 21, a guardrail 22, a sedimentation tank support 11, a sedimentation tank 12, a tank bottom 14, a sludge discharge port 15, a vertical bearing seat 51, and an inclined support plate 52. The sedimentation tank 12 is circular, with an inlet at its top for conveying wastewater into the sedimentation tank 12. Multiple sets of sedimentation tank supports 11 are symmetrically and vertically fixed to the bottom edge of the sedimentation tank 12. The tank bottom 14 is welded and fixed to the bottom of the sedimentation tank 12. The tank bottom 14 is funnel-shaped, and the sludge discharge port 15 is located at the center of the bottom of the tank bottom 14. To improve the structural strength of the sedimentation tank 12 and maintain its shape stability, a strength reinforcing ring 13 is fixed on the inner side of the upper part of the sedimentation tank 12. A horizontal frame 21 is fixed horizontally to the upper middle part of the sedimentation tank 12, with both ends of the horizontal frame 21 fixed to the top of the sedimentation tank 12. Guardrails 22 are provided at both ends of the horizontal frame 21. A motor cover 4 is fixed to the upper center of the horizontal frame 21, and a motor is fixed inside the motor cover 4. The motor cover is used to protect the internal motor. In this embodiment, the motor is a high-torque geared motor as described in the prior art. The motor shaft passes downward through the horizontal frame 21. The sludge discharge structure 3 is located inside the sedimentation tank 12, below the horizontal frame 21. A vertical bearing seat 51 is located in the center of the sludge discharge port 15. The outer side of the vertical bearing seat 51 is connected to the inner wall of the sludge discharge port 15 through four inclined support plates 52. The upper end of the sludge discharge structure 3 is connected to the motor shaft, and the lower end of the sludge discharge structure 3 is fixed to the vertical bearing seat 51. In this embodiment, the vertical bearing seat 51 can use a ball screw vertical support seat as described in the prior art to improve the vertical support force. The motor drives the sludge discharge structure 3 to rotate, which collects the sediment at the bottom of the pool 14 and discharges it from the sludge discharge port 15.

[0024] Reference Figures 3-4 As shown, the sludge removal structure 3 includes a rotating shaft 31, a scraper mounting rod 32, a reinforcing rod 33, scrapers 34, and a mounting cylinder 35. The mounting cylinder 35 is fixed to the upper outer side of the rotating shaft 31, and the scraper mounting rod 32 is obliquely fixed to the lower outer side of the rotating shaft 31. Each scraper mounting rod 32 has several scrapers 34 evenly spaced on it. The scrapers 34 and the scraper mounting rod 32 are inclined, and the projections of every two scrapers 34 in the inclined direction partially overlap, so that each row of scrapers 34 on the scraper mounting rod 32 can completely cover the bottom 14 of the pool. The bottom end of the mounting cylinder 35 is connected to the end of the scraper mounting rod 32 by the reinforcing rod 33.

[0025] Reference Figure 5As shown, a sleeve 53 is fitted onto the lower part of the rotating shaft 31. The sleeve 53 is fixed to the outside of the rotating shaft 31 by screws. An arc-shaped retaining ring 54 is integrally formed at the bottom end of the sleeve 53. The arc-shaped retaining ring 54 also has a through hole in the center. The arc-shaped retaining ring 54 is located above the top of the vertical bearing seat 51. A gap of 2-3 mm is maintained between the bottom end of the arc-shaped retaining ring 54 and the top end of the vertical bearing seat 51. The arc-shaped retaining ring 54 protects the top end of the vertical bearing seat 51 and prevents large pieces of sediment from affecting the operation of the vertical bearing seat 51. A spiral push rod 55 is coaxially fixed to the bottom end of the rotating shaft 31. The spiral push rod 55 is located in the center of the sludge discharge port 15. The spiral push rod 55 extends from the bottom end of the vertical bearing seat 51 to the bottom end of the sludge discharge port 15, so that the sludge and sediment that have gathered at the bottom 14 of the sedimentation tank 12 and are discharged from the sludge discharge port 15 can be discharged more effectively.

[0026] This utility model discloses a sludge removal machine for a circular sedimentation tank. During operation, a motor drives a rotating shaft 31 to rotate. Scrapers 34 mounted on a scraper mounting rod 32 push the sludge and sediment on the bottom 14 of the sedimentation tank inwards. The scrapers 34 and the scraper mounting rod 32 are inclined, with partial overlap in the projection of every two scrapers 34 in the inclined direction. This ensures that each row of scrapers 34 completely covers the bottom 14 of the tank and discharges the sludge through the discharge port 15. When the rotating shaft 31 rotates, its upper end is connected to the motor shaft, and its lower end is fixed to a vertical bearing seat 51, providing vertical support and improving its smoothness. This enhances the rotational stability of the sludge removal structure, ensuring effective sludge removal even after continuous, long-term operation. A spiral pusher rod 55 is coaxially fixed to the bottom of the rotating shaft 31, extending from the bottom of the vertical bearing seat 51 to the bottom of the discharge port 15. This facilitates the better discharge of the sludge and sediment from the bottom 14 of the sedimentation tank to the discharge port 15.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sludge removal machine for a circular sedimentation tank, characterized in that: The system includes a sludge discharge structure (3), a motor cover (4), a crossbeam (21), a guardrail (22), a sedimentation tank support (11), a sedimentation tank (12), a tank bottom (14), a sludge discharge port (15), a vertical bearing seat (51), and an inclined support plate (52). The sedimentation tank (12) is circular. Multiple sets of sedimentation tank supports (11) are symmetrically and vertically fixed to the bottom edge of the sedimentation tank (12). The tank bottom (14) is welded and fixed to the bottom of the sedimentation tank (12). The tank bottom (14) is funnel-shaped. The sludge discharge port (15) is located at the center of the bottom of the tank bottom (14). The crossbeam (21) is horizontally fixed to the middle of the upper end of the sedimentation tank (12). Guardrails are provided at both ends of the crossbeam (21). (22); The motor cover (4) is fixed at the upper center of the cross frame (21), and the motor is fixed inside the motor cover (4). The sludge discharge structure (3) is set inside the sedimentation tank (12) and is located below the cross frame (21). The vertical bearing seat (51) is set at the center of the sludge discharge port (15). The outer side of the vertical bearing seat (51) is connected to the inner wall of the sludge discharge port (15) through several inclined support plates (52). The upper end of the sludge discharge structure (3) is connected to the motor shaft. The lower end of the sludge discharge structure (3) is fixed on the vertical bearing seat (51). The motor drives the sludge discharge structure (3) to rotate, and the sediment at the bottom of the tank (14) is collected and discharged from the sludge discharge port (15).

2. The sludge removal machine for a circular sedimentation tank according to claim 1, characterized in that: The sludge discharge structure (3) includes a rotating shaft (31), a scraper mounting rod (32), a strength reinforcing rod (33), a scraper (34), and a mounting cylinder (35). The mounting cylinder (35) is fixed on the upper outer side of the rotating shaft (31), and the scraper mounting rod (32) is obliquely fixed on the lower outer side of the rotating shaft (31). Several scrapers (34) are evenly spaced on each scraper mounting rod (32). The bottom end of the mounting cylinder (35) is connected to the end of the scraper mounting rod (32) through the strength reinforcing rod (33).

3. The sludge removal machine for a circular sedimentation tank according to claim 2, characterized in that: The lower part of the rotating shaft (31) is fitted with a sleeve (53), which is fixed to the outside of the rotating shaft (31) by screws. The bottom end of the sleeve (53) is integrally connected with an arc-shaped retaining ring (54), and the arc-shaped retaining ring (54) also has a through hole in the center. The arc-shaped retaining ring (54) is located above the top of the vertical bearing seat (51).

4. The sludge removal machine for a circular sedimentation tank according to claim 3, characterized in that: The bottom end of the rotating shaft (31) is coaxially fixed with a spiral push rod (55), which is located in the center of the mud discharge port (15). The spiral push rod (55) extends from the bottom end of the vertical bearing seat (51) to the bottom end of the mud discharge port (15).

5. The sludge removal machine for a circular sedimentation tank according to claim 4, characterized in that: A strength-reinforcing ring (13) is fixed on the upper inner side of the sedimentation tank (12).

6. The sludge removal machine for a circular sedimentation tank according to claim 2, characterized in that: The scraper (34) and the scraper mounting rod (32) are inclined, and the projections of two scrapers (34) in the inclined direction partially overlap.

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