Thickener with liftable chute

Abstract

The thickener comprises a sedimentation tank, a stirring mechanism and an adjusting mechanism, the sedimentation tank is provided with a sedimentation cavity, a drain outlet is formed in the center of the inner bottom face of the sedimentation tank, and an overflow tank communicated with the sedimentation cavity is further formed in the edge of the sedimentation tank. A water outlet communicated with the overflow tank is formed in the side wall of the overflow tank; the stirring mechanism is used for stirring a mixture in the sedimentation tank; the adjusting mechanism comprises a lifting inner cylinder, a turbidity detector and a lifting driving part. The lifting inner cylinder is driven by the lifting driving part to move up and down, so that the turbidity of a water body at the height of the lifting inner cylinder is kept stable, the turbidity of supernatant discharged by crossing the lifting inner cylinder is stable, and when the turbidity of the supernatant at the upper part of the sedimentation tank is relatively low, the lifting inner cylinder descends, so that the supernatant is rapidly discharged; the supernatant discharge efficiency is improved, and the thickening efficiency is further improved.

Description

Technical Field

[0001] This application relates to the field of slurry thickening technology, specifically to a slurry thickener with a liftable chute. Background Technology

[0002] A thickener, also known as a slurry thickener, is a solid-liquid separation device based on gravity settling. Thickeners are typically constructed using concrete, wood, or welded metal plates as structural materials. They are shallow, cylindrical troughs with a conical bottom and contain a slowly rotating rake inside to aid in the concentration and discharge of the slurry.

[0003] Existing thickener designs generally employ a top annular chute for discharging the supernatant. While simple, this design has a significant limitation: the height of the annular chute is fixed and it is typically located at the top of the thickener. This layout means that only the supernatant at the very top of the thickener, directly connected to the annular chute, can be discharged smoothly. However, in practice, we have found that the supernatant located slightly below the annular chute often has significantly reduced turbidity, meeting discharge standards.

[0004] Due to current design limitations, this relatively clear supernatant cannot be effectively discharged and can only remain inside the thickener, continuing to mix with solid particles. This not only reduces the discharge efficiency of the supernatant but also affects the efficiency of the entire thickening process. Summary of the Invention

[0005] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a chute-liftable thickener to solve the technical problems of low supernatant discharge efficiency and low thickening efficiency in existing thickeners.

[0006] To achieve the above-mentioned technical objectives, this application adopts the following technical solution:

[0007] This application provides a chute-liftable thickener, comprising:

[0008] A sedimentation tank has a sedimentation chamber, a drain outlet is provided at the center of the inner bottom surface of the sedimentation tank, and an overflow trough communicating with the sedimentation chamber is formed on the edge of the sedimentation tank. A drain outlet communicating with the overflow trough is provided on the side wall of the overflow trough.

[0009] A stirring mechanism for agitating the mixture in the sedimentation tank; and,

[0010] The regulating mechanism includes a lifting inner cylinder, a turbidity detector, and a lifting drive. The lifting inner cylinder is slidably disposed on the inner wall of the overflow tank. The turbidity detector is installed on the lifting inner cylinder and is used to detect the turbidity of the water at the height of the lifting inner cylinder. The lifting drive is connected to the lifting inner cylinder and is used to drive the lifting inner cylinder to move up and down.

[0011] In some embodiments, the agitation mechanism includes a support, a central shaft, at least one scraper, and a rotation drive. The support is fixedly mounted above the sedimentation tank. The central shaft is rotatably mounted on the support and coaxially arranged with the sewage outlet. The scraper is fixed on the central shaft and slidably mounted on the inner bottom surface of the sedimentation tank. The rotation drive is connected to the central shaft and is used to drive the central shaft to rotate.

[0012] In some embodiments, the rotation drive is a rotation drive motor, which is connected to the central shaft and used to drive the central shaft to rotate.

[0013] In some embodiments, the agitation mechanism further includes a plurality of connecting frames, one end of which is fixedly connected to the central shaft, and the other end of which is fixedly connected to the corresponding scraper.

[0014] In some embodiments, the sluice-liftable thickener further includes a feeding mechanism, which includes a feeding pipe that communicates with the sedimentation chamber.

[0015] In some embodiments, the feeding mechanism further includes a retaining ring, which is fixed to the middle of the sedimentation chamber, and the feeding pipe communicates with the inner cavity of the retaining ring.

[0016] In some embodiments, a material hopper is connected to the lower end of the drain outlet.

[0017] In some embodiments, the chute-liftable thickener further includes a discharge valve, one end of which is connected to the outlet of the hopper.

[0018] In some embodiments, the lifting drive component includes a lifting drive cylinder, the cylinder body of which is fixed to the bracket, and the output shaft of which is fixedly connected to the lifting inner cylinder.

[0019] In some embodiments, the output shaft of the lifting drive cylinder is fixedly connected to the lifting inner cylinder via a connecting rod.

[0020] Compared with the prior art, the beneficial effects of the liftable thickener provided in this application are as follows: by sliding a lifting inner cylinder on the inner wall of the overflow tank, the turbidity of the water at the height of the lifting inner cylinder is detected by a turbidity detector, and the lifting inner cylinder is driven to move up and down by a lifting drive component, so that the turbidity of the water at the height of the lifting inner cylinder is kept stable, thereby stabilizing the turbidity of the supernatant discharged over the lifting inner cylinder. Thus, when the turbidity of the supernatant in the upper part of the sedimentation tank is low, the lifting inner cylinder can be lowered to quickly discharge the supernatant, thereby improving the supernatant discharge efficiency and thus improving the thickening efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a chute-liftable thickener provided in one embodiment of this application;

[0022] Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle;

[0023] Explanation of reference numerals in the attached drawings: 1-Sedimentation tank, 11-Drain outlet, 12-Overflow trough, 121-Drain outlet, 13-Gathering hopper, 14-Discharge valve, 2-Agitating mechanism, 21-Support, 22-Central shaft, 23-Scraper, 24-Rotation drive component, 25-Connecting frame, 3-Adjusting mechanism, 31-Lifting inner cylinder, 32-Turbidity detector, 33-Lifting drive component, 331-Lifting drive cylinder, 332-Connecting rod, 4-Feeding mechanism, 41-Feeding pipe, 42-Blocking ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] To address the technical problems of low supernatant discharge efficiency and low thickening efficiency in thickeners, this application provides a thickener with a liftable chute, which can improve supernatant discharge efficiency and thus improve thickening efficiency.

[0026] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a sluice-liftable thickener according to one embodiment of the present application. The sluice-liftable thickener includes a sedimentation tank 1, an agitation mechanism 2, and an adjustment mechanism 3.

[0027] The sedimentation tank 1 has a sedimentation chamber, and a drain outlet 11 is provided at the center of the inner bottom surface of the sedimentation tank 1. An overflow trough 12 communicating with the sedimentation chamber is also formed on the edge of the sedimentation tank 1. A drain outlet 121 communicating with the overflow trough 12 is provided on the side wall of the overflow trough 12.

[0028] The stirring mechanism 2 is used to stir the mixture in the sedimentation tank 1;

[0029] The adjustment mechanism 3 includes a lifting inner cylinder 31, a turbidity detector 32, and a lifting drive component 33. The lifting inner cylinder 31 is slidably disposed on the inner wall of the overflow tank 12. The turbidity detector 32 is installed on the lifting inner cylinder 31 and is used to detect the turbidity of the water at the height of the lifting inner cylinder 31. The lifting drive component 33 is connected to the lifting inner cylinder 31 and is used to drive the lifting inner cylinder 31 to move up and down.

[0030] In use, the slurry is fed into the sedimentation tank 1, and the stirring mechanism 2 is used to agitate the slurry in the sedimentation tank 1. Under the action of gravity, the solid components in the slurry sink down, and the supernatant gradually forms at the top. The turbidity of the water at the height of the lifting inner cylinder 31 is detected by the turbidity detector 32. When the turbidity of the water is higher than the preset turbidity, the lifting drive 33 drives the lifting inner cylinder 31 to rise, so as to avoid the turbid supernatant being directly discharged into the overflow tank 12. When the turbidity of the water is lower than the preset turbidity, the lifting drive 33 drives the lifting inner cylinder 31 to descend, so as to facilitate the rapid discharge of the clear supernatant below. After the supernatant passes the top of the lifting inner cylinder 31, it enters the overflow tank 12 and is then discharged from the drain outlet 121.

[0031] This application involves sliding a lifting inner cylinder 31 on the inner wall of the overflow tank 12. The turbidity of the water at the height of the lifting inner cylinder 31 is detected by a turbidity detector 32, and the lifting inner cylinder 31 is driven to move up and down by a lifting drive 33 to keep the turbidity of the water at the height of the lifting inner cylinder 31 stable. This stabilizes the turbidity of the supernatant discharged over the lifting inner cylinder 31, allowing the lifting inner cylinder 31 to descend when the turbidity of the supernatant in the upper part of the sedimentation tank 1 is low, thereby quickly discharging the supernatant, improving the supernatant discharge efficiency, and thus improving the concentration efficiency.

[0032] In one embodiment, please refer to Figure 1 The agitation mechanism 2 includes a support 21, a central shaft 22, at least one scraper 23, and a rotation drive 24. The support 21 is fixedly mounted above the sedimentation tank 1. The central shaft 22 is rotatably mounted on the support 21 and coaxially mounted with the sewage outlet 11. The scraper 23 is fixed on the central shaft 22 and slidably mounted on the inner bottom surface of the sedimentation tank 1. The rotation drive 24 is connected to the central shaft 22 and is used to drive the central shaft 22 to rotate.

[0033] In one embodiment, please refer to Figure 1 The rotation drive component 24 is a rotation drive motor, which is connected to the central shaft 22 and is used to drive the central shaft 22 to rotate.

[0034] In one embodiment, please refer to Figure 1 The stirring mechanism 2 also includes several connecting frames 25, one end of which is fixedly connected to the central shaft 22, and the other end of which is fixedly connected to the corresponding scraper 23.

[0035] In one embodiment, please refer to Figure 1 The thickener with a liftable chute also includes a feeding mechanism 4, which includes a feeding pipe 41 that is connected to the sedimentation chamber.

[0036] In one embodiment, please refer to Figure 1 The feeding mechanism 4 also includes a retaining ring 42, which is fixed in the middle of the sedimentation chamber, and the feeding pipe 41 communicates with the inner cavity of the retaining ring 42.

[0037] In one embodiment, please refer to Figure 1 The lower end of the drain outlet 11 is connected to a material hopper 13.

[0038] In one embodiment, please refer to Figure 1 The thickener with a liftable chute also includes a discharge valve 14, one end of which is connected to the outlet of the hopper 13.

[0039] In one embodiment, please refer to Figure 1 The lifting drive component 33 includes a lifting drive cylinder 331, the cylinder body of which is fixed to the bracket 21, and the output shaft of which is fixedly connected to the lifting inner cylinder 31.

[0040] In one embodiment, please refer to Figure 1 The output shaft of the lifting drive cylinder 331 is fixedly connected to the lifting inner cylinder 31 via a connecting rod 332.

[0041] To better understand this application, the following is combined with... Figures 1 to 2 The technical solution of this application is described in detail as follows: In use, the slurry is fed into the sedimentation tank 1, and the slurry in the sedimentation tank 1 is stirred by the stirring mechanism 2. Under the action of gravity, the solid components in the slurry sink down, and the supernatant gradually forms at the top. The turbidity of the water at the height of the lifting inner cylinder 31 is detected by the turbidity detector 32. When the turbidity of the water is higher than the preset turbidity, the lifting drive 33 drives the lifting inner cylinder 31 to rise, so as to avoid the turbid supernatant being directly discharged into the overflow tank 12. When the turbidity of the water is lower than the preset turbidity, the lifting drive 33 drives the lifting inner cylinder 31 to fall, so as to facilitate the rapid discharge of the clear supernatant below. After the supernatant passes the top of the lifting inner cylinder 31, it enters the overflow tank 12 and is then discharged from the drain outlet 121.

[0042] This application involves sliding a lifting inner cylinder 31 on the inner wall of the overflow tank 12. The turbidity of the water at the height of the lifting inner cylinder 31 is detected by a turbidity detector 32, and the lifting inner cylinder 31 is driven to move up and down by a lifting drive 33 to keep the turbidity of the water at the height of the lifting inner cylinder 31 stable. This stabilizes the turbidity of the supernatant discharged over the lifting inner cylinder 31, allowing the lifting inner cylinder 31 to descend when the turbidity of the supernatant in the upper part of the sedimentation tank 1 is low, thereby quickly discharging the supernatant, improving the supernatant discharge efficiency, and thus improving the concentration efficiency.

[0043] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.

Claims

1. A thickener with a liftable chute, characterized in that, include: A sedimentation tank has a sedimentation chamber, a drain outlet is provided at the center of the inner bottom surface of the sedimentation tank, and an overflow trough communicating with the sedimentation chamber is formed on the edge of the sedimentation tank. A drain outlet communicating with the overflow trough is provided on the side wall of the overflow trough. A stirring mechanism is provided for stirring the mixture in the sedimentation tank. as well as, The regulating mechanism includes a lifting inner cylinder, a turbidity detector, and a lifting drive. The lifting inner cylinder is slidably disposed on the inner wall of the overflow tank. The turbidity detector is installed on the lifting inner cylinder and is used to detect the turbidity of the water at the height of the lifting inner cylinder. The lifting drive is connected to the lifting inner cylinder and is used to drive the lifting inner cylinder to move up and down.

2. The chute-liftable thickener according to claim 1, characterized in that, The agitation mechanism includes a support, a central shaft, at least one scraper, and a rotation drive. The support is fixedly mounted above the sedimentation tank. The central shaft is rotatably mounted on the support and coaxially arranged with the sewage outlet. The scraper is fixed on the central shaft and slidably mounted on the inner bottom surface of the sedimentation tank. The rotation drive is connected to the central shaft and is used to drive the central shaft to rotate.

3. The chute-liftable thickener according to claim 2, characterized in that, The rotation drive component is a rotation drive motor, which is connected to the central shaft and is used to drive the central shaft to rotate.

4. The chute-liftable thickener according to claim 2, characterized in that, The agitation mechanism also includes several connecting frames, one end of which is fixedly connected to the central shaft, and the other end of which is fixedly connected to the corresponding scraper.

5. The chute-liftable thickener according to claim 1, characterized in that, It also includes a feeding mechanism, which includes a feeding pipe that is connected to the sedimentation chamber.

6. The chute-liftable thickener according to claim 5, characterized in that, The feeding mechanism also includes a retaining ring, which is fixed in the middle of the sedimentation chamber, and the feeding pipe communicates with the inner cavity of the retaining ring.

7. The chute-liftable thickener according to claim 1, characterized in that, The lower end of the sewage outlet is connected to a material hopper.

8. The chute-liftable thickener according to claim 7, characterized in that, It also includes a discharge valve, one end of which is connected to the outlet of the hopper.

9. The chute-liftable thickener according to claim 2, characterized in that, The lifting drive component includes a lifting drive cylinder, the cylinder body of which is fixed to the bracket, and the output shaft of which is fixedly connected to the lifting inner cylinder.

10. The chute-liftable thickener according to claim 9, characterized in that, The output shaft of the lifting drive cylinder is fixedly connected to the lifting inner cylinder via a connecting rod.

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