Efficient steel sludge concentration tank

Abstract

The utility model provides a kind of efficient steel sludge concentration tank, including pool body and support plate, support plate is located at pool body top, pool body bottom center position is equipped with sump, support plate is equipped with driving motor, support plate bottom is equipped with steel fender, steel fender is equipped with inlet pipe, driving motor output is provided with main shaft, main shaft is located in steel fender and extends to pool body bottom;Main shaft includes first shaft body, second shaft body and third shaft body sequentially arranged from top to bottom, first shaft body is equipped with stirring vane, stirring vane is located in steel fender interior, third shaft body is equipped with multiple swing arms, swing arm bottom is equipped with connecting rod, connecting rod is uniformly equipped with multiple sweepers, second shaft body is equipped with the side wall scraping device that is attached with pool body inner wall, through main shaft three-section structure, the side wall scraping device on second shaft body and swing arm, connecting rod and sweeper on third shaft body form linkage dredging system, sludge is pushed to sump and is centrally treated.

Description

Technical Field

[0001] This utility model relates to the field of sludge thickening tanks, and in particular to a high-efficiency steel sludge thickening tank. Background Technology

[0002] Sludge thickening tanks play a vital role in wastewater treatment. The main purpose of thickening is to reduce the volume of sludge, thereby lowering the cost of subsequent treatment. Traditional sludge thickening tanks use mechanical or gravity methods to increase the residence time of the sludge in the tank, gradually separating the internal water and achieving the purpose of thickening.

[0003] Currently, most sludge thickening tanks widely used in wastewater treatment systems are constructed using reinforced concrete structures. While this traditional construction method offers structural stability, it suffers from significant drawbacks such as long construction periods and high costs. In contrast, steel tanks offer advantages such as modular assembly and convenient construction, but conventional steel structure designs often neglect fluid dynamics characteristics and lack scientific optimization of the water flow within the tank, thus affecting sludge settling efficiency.

[0004] In the sludge collection process, the commonly used traditional sludge scrapers have significant defects: the mechanical fit between the scraper blades and the bottom of the tank is not precise enough, which makes it impossible for the two to fit completely. This not only makes it impossible to completely remove the sludge from the bottom of the tank, but also leaves residual sludge at the edges far from the scraper blades, affecting the treatment effect. Furthermore, the long-term accumulation of sludge will increase frictional resistance, significantly increasing the power consumption of the equipment during operation and raising operating costs.

[0005] To address these issues, a high-efficiency steel sludge thickening tank is proposed. Utility Model Content

[0006] To overcome the shortcomings of existing technologies in that the sludge at the bottom of the tank cannot be completely removed, this utility model provides a high-efficiency steel sludge thickening tank.

[0007] This utility model is achieved using the following technical solution: A high-efficiency steel sludge thickening tank includes a tank body and a support plate. The support plate is located at the top of the tank body, and a sludge collection hopper is provided at the center of the bottom of the tank body. A drive motor is provided on the support plate, and a steel enclosure is provided at the bottom of the support plate. A sludge inlet pipe is provided on the steel enclosure. A main shaft is provided at the output end of the drive motor. The main shaft is located inside the steel enclosure and extends to the bottom of the tank body. The main shaft includes a first shaft, a second shaft, and a third shaft arranged from top to bottom. The first shaft is equipped with stirring blades located inside the steel enclosure. The third shaft is equipped with multiple swing arms, and the bottom of each swing arm is equipped with a connecting rod. Multiple sweeping plates are evenly arranged on the connecting rod. The second shaft is equipped with a sidewall scraping device that fits against the inner wall of the pool body.

[0008] As a preferred embodiment of the present invention, the side wall scraping device includes a rotating arm and a side scraper. Multiple rotating arms are provided, and the rotating arms are fixed on a second shaft and evenly distributed along its circumference. The front end of the rotating arm is connected to the side scraper. The bottom of the side scraper is provided with a scraping plate, which is inclined along the bottom wall of the tank body and toward the sludge collection hopper.

[0009] As a preferred embodiment of this utility model, the inner wall of the top of the pool body is provided with a baffle, and multiple overflow weirs are evenly provided on the baffle. The side wall of the pool body is provided with a water outlet, which is connected to the through pool body and located below the overflow weir.

[0010] In a preferred embodiment of this utility model, the scraper plate is bolted to the bottom of the side scraper plate, and a spring is provided between the scraper plate and the side scraper plate.

[0011] As a preferred embodiment of this utility model, the side scraper is long and strip-shaped and fits against the inner wall of the pool body, and the sweeping plate has an inclined plate structure and fits tightly against the bottom wall of the pool body.

[0012] As a preferred embodiment of this utility model, a purification device is connected to the bottom of the sludge collection hopper, and a discharge port is provided at the bottom of the purification device.

[0013] As a preferred embodiment of this utility model, the rotating arm is provided with a reinforcing rib, one end of which is connected to the middle of the rotating arm and the other end is fixed to the second shaft.

[0014] As a preferred embodiment of this utility model, a guide bucket is bolted to the bottom of the steel enclosure.

[0015] Compared with existing technologies, the advantages of this utility model are: 1. By dividing the main shaft into a three-section structure, the side scraper and scraper plate of the second shaft work together to effectively scrape off the sludge on the pool wall and bottom surface, and form a linkage sludge removal system with the swing arm, connecting rod and sweeping plate on the third shaft to push the sludge into the sludge collection hopper for centralized treatment.

[0016] 2. A guide hopper is installed at the bottom of the steel enclosure. The sludge enters the steel enclosure through the inlet pipe. After being initially dispersed by the stirring blades during the stirring process, the sludge is guided evenly into the bottom of the tank body through the guide hopper, thus preventing the sludge from accumulating around the inlet pipe.

[0017] 3. The spring installed between the side scraper and the scraper plate can effectively buffer the rigid contact between the side scraper and the pool wall during the sludge removal process, preventing the scraper from being damaged due to excessive force, while ensuring that the scraper plate always fits in contact with the bottom surface of the pool, thus improving the sludge pushing efficiency. Attached Figure Description

[0018] Figure 1This is an overall structural diagram of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is an overall sectional view of the present invention; Figure 4 This is an exploded structural diagram of the main shaft of this utility model; Figure 5 This is a cross-sectional view of the scraper plate of this utility model; In the diagram: 1. Tank body; 11. Support plate; 12. Sewage inlet pipe; 13. Sewage collection hopper; 2. Drive motor; 21. Steel enclosure plate; 22. Guide hopper; 3. Main shaft; 31. First shaft body; 32. Second shaft body; 33. Third shaft body; 4. Agitator blades; 5. Rotary arm; 51. Side scraper; 52. Scraper plate; 53. Spring; 54. Reinforcing rib; 6. Swing arm; 61. Connecting rod; 62. Sweeping plate; 7. Baffle; 71. Overflow weir; 72. Water outlet; 8. Purification device; 81. Discharge outlet. Detailed Implementation

[0019] 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. 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 protection scope of the present utility model.

[0020] Example: Please see Figures 1-5 A high-efficiency steel sludge thickening tank includes a tank body 1 and a support plate 11. The support plate 11 is located at the top of the tank body 1. A sludge collection hopper 13 is provided at the center of the bottom of the tank body 1. A drive motor 2 is provided on the support plate 11. A steel enclosure 21 is provided at the bottom of the support plate 11. A sludge inlet pipe 12 is provided on the steel enclosure 21. A main shaft 3 is provided at the output end of the drive motor 2. The main shaft 3 is located inside the steel enclosure 21 and extends to the bottom of the tank body 1. In this embodiment, the pool body 1 is the main structure of the thickening tank. A support plate 11 is provided on the top of the pool body 1 along the center. The sludge collection hopper 13 is connected to the center of the bottom of the pool body 1. The sludge inside the pool body 1 enters the sludge collection hopper 13. A drive motor 2 is installed at the top of the center of the support plate 11. A steel enclosure 21 is provided at the bottom of the center of the support plate 11. At the same time, a sludge inlet pipe 12 is provided on the steel enclosure 21. The sewage to be treated first enters the steel enclosure 21 through the sludge inlet pipe 12, and then enters the pool body 1. A main shaft 3 is provided at the output end of the drive motor 2. The main shaft 3 extends vertically downward radially. The main shaft 3 is located inside the steel enclosure 21 and extends downward to the bottom of the pool body 1. The range of motion covers the internal space of the pool body.

[0021] The main shaft 3 includes a first shaft body 31, a second shaft body 32, and a third shaft body 33 arranged from top to bottom. The first shaft body 31 is provided with stirring blades 4, which are located inside the steel enclosure 21. The third shaft body 33 is provided with multiple swing arms 6, and the bottom of the swing arms 6 is provided with connecting rods 61. Multiple sweeping plates 62 are evenly provided on the connecting rods 61. The second shaft body 32 is provided with a side wall scraping device that fits against the inner wall of the pool body 1.

[0022] In this embodiment, the main shaft 3 includes a first shaft 31, a second shaft 32, and a third shaft 33. The first shaft 31 is connected to the output end of the drive motor 2, and its range of motion is located inside the steel enclosure 21. Agitator blades 4 are provided on the periphery of the first shaft 31. The agitator blades 4 rotate with the first shaft 31 to initially agitate the incoming sewage, breaking it up during the agitation process. The second shaft 32 is located in the middle section of the tank body 1, and the third shaft 33 is located at the bottom of the tank body 1. Multiple connecting rods 61 are evenly distributed on the periphery of the third shaft 33. Connecting rods 61 are located at the bottom of the multiple connecting rods 61, and multiple sweeping plates 62 are fixed on the connecting rods 61. Specifically, the sweeping plates 62 have an inclined plate structure and are tightly attached to the inner bottom wall of the tank body 1. When the sweeping plates 62 rotate with the third shaft 33, they move along the bottom of the tank. The rotating shaft makes circular motion to effectively prevent sludge deposition. The second rotating shaft is equipped with a side wall scraping device. When the tank body 1 starts working, the sewage inlet pipe 12 continuously injects sewage. After the drive motor 2 starts, it drives the main shaft 3 to rotate as a whole. The stirring blades 4 on the first shaft 31 agitate and disperse the sewage that initially enters the steel enclosure 21, so that the solid particles in the sewage are fully suspended for subsequent sedimentation and separation. The side wall scraping device on the second shaft 32 simultaneously cleans the inner edge of the tank body 1 and pushes the settled sludge towards the sweeping plate 62 area. When the third shaft 33 rotates, it drives the connecting rod 61 and the sweeping plate 62 to clean the sediment at the bottom of the tank in all directions, ensuring that the sludge does not harden or accumulate. The sweeping plate 62 is designed with an inclined surface, which can gather the bottom sludge towards the center of the sludge collection hopper 13 during rotation, making it easy to centrally process.

[0023] Specifically, the side wall scraping device includes a rotating arm 5 and a side scraper 51. Multiple rotating arms 5 are provided. The rotating arms 5 are fixed on the second shaft 32 and evenly distributed along its circumference. The front end of the rotating arm 5 is connected to the side scraper 51. The bottom of the side scraper 51 is provided with a scraping plate 52. The scraping plate 52 is inclined along the inner bottom wall of the tank body 1 and toward the sludge collection hopper 13.

[0024] In this embodiment, the sidewall scraping device includes a rotating arm 5 and a side scraper 51. Multiple rotating arms 5 are provided, and the ends of the rotating arms 5 are fixed on the second shaft 32 and evenly distributed along the circumference. The front end of the rotating arm 5 is connected to the side scraper 51. The side scraper 51 is long and narrow and fits against the inner sidewall of the tank body 1. A scraping plate 52 is provided on one side of the bottom of the scraper. The scraping plate 52 is close to the inner bottom wall of the tank body 1 and is inclined towards the sludge collection hopper 13. When the scraping plate 52 rotates with the rotating arm 5, it continuously scrapes the sediment at the junction of the tank wall and the tank bottom towards the sludge collection hopper 13 to prevent dead corner sludge accumulation.

[0025] Specifically, the inner wall of the top of the pool body 1 is provided with a baffle 7, and multiple overflow weirs 71 are evenly provided on the baffle 7. The side wall of the pool body 1 is provided with a water outlet 72, which is connected to the through pool body 1 and located below the overflow weirs 71.

[0026] In this embodiment, a baffle 7 is provided on the inner wall of the top of the pool body 1. The baffle 7 and the pool body 1 form an annular water passage. Multiple overflow weirs 71 are evenly distributed on the baffle 7. After sedimentation, the sewage enters the annular water passage through the overflow weirs 71, realizing the effective separation of clear liquid and sludge. Finally, the cleaned sewage is discharged from the outlet 72.

[0027] Specifically, the scraper plate 52 is bolted to the bottom of the side scraper plate 51, and a spring 53 is provided between the scraper plate 52 and the side scraper plate 51.

[0028] In this embodiment, the scraper plate 52 is bolted to the bottom of the side scraper plate 51 for easy replacement and maintenance. A spring 53 is provided between the side scraper plate 51 and the scraper plate 52 to effectively buffer the rigid contact between the side scraper plate 51 and the pool wall during the sludge removal process, preventing the scraper from being damaged due to excessive force.

[0029] Specifically, the bottom of the sludge collection hopper 13 is connected to a purification device 8, and the bottom of the purification device 8 is provided with a discharge port 81.

[0030] In this embodiment, a purification device 8 is connected to the bottom of the sludge collection hopper 13. The sludge located at the bottom of the pool body 1 is uniformly sent into the sludge collection hopper 13 and then processed by the purification device 8. The sludge separated by the purification device 8 is discharged through the outlet 81.

[0031] Specifically, the rotating arm 5 is provided with a reinforcing rib 54, one end of which is connected to the middle of the rotating arm 5, and the other end is fixed to the second shaft 32.

[0032] In this embodiment, the reinforcing ribs 54 on the rotating arm 5 enhance the structural strength of the rotating arm 5. When the second rotating shaft rotates, the side scraper 51 and the scraping plate 52 are subjected to greater forces. By setting the reinforcing ribs 54, the deformation or breakage of the rotating arm 5 can be effectively prevented, ensuring the long-term stable operation of the scraping device.

[0033] Specifically, the bottom of the steel enclosure 21 is bolted with a guide bucket 22.

[0034] In this embodiment, a guide bucket 22 is bolted to the bottom of the steel enclosure 21. The guide bucket 22 has a conical structure and fits tightly with the steel enclosure 21 after installation, guiding the sediment to slide smoothly into the tank body 1 and converge towards the sludge collection bucket 13 under the rotation of the main shaft 3.

[0035] The principle of this utility model is as follows: the sewage to be treated first enters the steel enclosure 21 through the sewage inlet pipe 12, and the drive motor 2 drives the main shaft 3 to rotate. When the main shaft 3 rotates, the first shaft 31, the second shaft 32 and the third shaft 33 rotate accordingly, each performing its own function. The first shaft 31 is located inside the steel enclosure 21. The stirring blades 4 rotate with the first shaft 31 to initially stir the sewage entering. During the stirring process, the sewage is initially dispersed and guided evenly into the bottom of the tank body 1 through the guide bucket 22.

[0036] The side wall scraping device on the second rotating shaft drives the side scraper 51 to make a circular motion along the inner wall of the pool body 1 when the second rotating shaft rotates, pushing the deposited sludge at the junction of the pool wall and the bottom of the pool towards the area of ​​the sweeping plate 62. When the third shaft 33 rotates, it drives the connecting rod 61 and the sweeping plate 62 to clean the sediment at the bottom of the pool in all directions, ensuring that the sludge does not harden or accumulate. The sweeping plate 62 is designed with a slope, which can gather the bottom sludge towards the center of the sludge collection hopper 13 during rotation. After the sludge is uniformly gathered into the sludge collection hopper 13, it is separated and treated by the purification device 8, and the sludge is discharged from the bottom outlet 81.

[0037] The purified water from the main body of the pool 1 enters the annular water channel formed by the baffle 7 and the main body of the pool through the overflow weir 71, and is then discharged out of the pool through the outlet 72, thus achieving efficient separation of sewage and purified water.

[0038] 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 high-efficiency steel sludge thickening tank, comprising a tank body (1) and a support plate (11), the support plate (11) being located at the top of the tank body (1), a sludge collection hopper (13) being provided at the center of the bottom of the tank body (1), and a drive motor (2) being provided on the support plate (11), characterized in that: The support plate (11) is provided with a steel enclosure plate (21) at the bottom, and a sewage inlet pipe (12) is provided on the steel enclosure plate (21). The output end of the drive motor (2) is provided with a main shaft (3), which is located inside the steel enclosure plate (21) and extends to the bottom of the pool body (1). The main shaft (3) includes a first shaft (31), a second shaft (32) and a third shaft (33) arranged from top to bottom. The first shaft (31) is provided with stirring blades (4) located inside the steel enclosure (21). The third shaft (33) is provided with multiple swing arms (6). The bottom of the swing arms (6) is provided with connecting rods (61). Multiple sweeping plates (62) are evenly provided on the connecting rods (61). The second shaft (32) is provided with a side wall scraping device that fits against the inner wall of the pool body (1).

2. The high-efficiency steel sludge thickening tank according to claim 1, characterized in that: The side wall scraping device includes a rotating arm (5) and a side scraper (51). The rotating arm (5) is provided in multiple ways. The rotating arm (5) is fixed on the second shaft (32) and evenly distributed along its circumference. The front end of the rotating arm (5) is connected to the side scraper (51). The bottom of the side scraper (51) is provided with a scraping plate (52). The scraping plate (52) is inclined along the inner bottom wall of the tank body (1) and toward the sludge collection hopper (13).

3. The high-efficiency steel sludge thickening tank according to claim 2, characterized in that: The inner wall of the top of the pool body (1) is provided with a baffle (7), and multiple overflow weirs (71) are evenly provided on the baffle (7). The side wall of the pool body (1) is provided with a water outlet (72), and the water outlet is connected to the through pool body (1) and located below the overflow weir (71).

4. The high-efficiency steel sludge thickening tank according to claim 3, characterized in that: The scraper plate (52) is bolted to the bottom of the side scraper plate (51), and a spring (53) is provided between the scraper plate (52) and the side scraper plate (51).

5. The high-efficiency steel sludge thickening tank according to claim 4, characterized in that: The side scraper (51) is long and attached to the inner wall of the pool body (1), and the sweeping plate (62) is an inclined plate structure and is attached to the inner bottom wall of the pool body (1).

6. The high-efficiency steel sludge thickening tank according to claim 5, characterized in that: The bottom of the sludge collection hopper (13) is connected to a purification device (8), and the bottom of the purification device (8) is provided with a discharge port (81).

7. The high-efficiency steel sludge thickening tank according to claim 2, characterized in that: The rotating arm (5) is provided with a reinforcing rib (54), one end of which is connected to the middle of the rotating arm (5), and the other end is fixed to the second shaft (32).

8. The high-efficiency steel sludge thickening tank according to claim 2, characterized in that: The bottom of the steel enclosure (21) is bolted to a guide bucket (22).

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