Thickener comprising liftable / lowerable launder

Abstract

A thickener comprising a liftable / lowerable launder, comprising a sedimentation tank (1), a stirring mechanism (2), and adjustment mechanisms (3). The sedimentation tank (1) is provided with a sedimentation cavity, a sludge discharge port (11) is formed at the center of the inner bottom surface of the sedimentation tank (1), an overflow launder (12) in communication with the sedimentation cavity is further formed at the edge of the sedimentation tank (1), and a water discharge port (121) in communication with the overflow launder (12) is formed on a side wall of the overflow launder (12); the stirring mechanism (2) is used for stirring a mixture in the sedimentation tank (1); and each adjustment mechanism (3) comprises a lifting / lowering inner cylinder (31), a turbidity detector (32), and a lifting / lowering driving member (33). The lifting / lowering driving member (33) drives the lifting / lowering inner cylinder (31) to move up and down, to keep the turbidity of water at the height of the lifting / lowering inner cylinder (31) stable, so that the turbidity of a supernatant discharged over the lifting / lowering inner cylinder (31) is stabilized, thereby enabling, when the turbidity of the supernatant at the upper part of the sedimentation tank (1) is low, the lifting / lowering inner cylinder (31) to be lowered, and thus quickly discharging the supernatant, improving the supernatant discharging efficiency, and further improving the thickening efficiency.

Description

A chute liftable thickener TECHNICAL FIELD

[0001] The present application relates to the technical field of ore pulp thickening, in particular to a chute liftable thickener. BACKGROUND

[0002] The thickener, also known as the thickener, is a solid-liquid separation equipment based on gravity sedimentation. The thickener is usually made of concrete, wood or metal welded plate as the structural material, which is a cylindrical shallow groove with a conical bottom, and a slow-running rake is installed inside to help the thickening and discharge of the ore pulp.

[0003] The existing thickener design generally adopts a top annular chute to discharge the supernatant. Although this design is simple, it has a significant limitation: the height of the annular chute is fixed and usually located at the top of the thickener. This layout means that only the supernatant located at the top layer of the thickener directly connected to the annular chute can be smoothly discharged. However, in actual operation, we found that the supernatant located slightly below the annular chute has a significantly reduced turbidity, reaching the discharge standard.

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

[0005] SUMMARY

[0006] The purpose of the present application is to overcome the above technical deficiencies and provide a chute liftable thickener to solve the technical problems of low supernatant discharge efficiency and low thickening efficiency of the existing thickener.

[0007] To achieve the above technical purpose, the present application adopts the following technical scheme:

[0008] The present application provides a chute liftable thickener, comprising:

[0009] The sedimentation tank has a sedimentation cavity, the center of the inner bottom surface of the sedimentation tank is provided with a sewage discharge port, the edge of the sedimentation tank is further formed with an overflow groove communicating with the sedimentation cavity, and the side wall of the overflow groove is provided with a drainage port communicating with the overflow groove;

[0010] The stirring mechanism is used for stirring the mixture in the sedimentation tank; and,

[0011] The adjusting mechanism comprises a lifting inner cylinder, a turbidity detector and a lifting driving element, the lifting inner cylinder is slidingly arranged on the inner side wall of the overflow tank, the turbidity detector is installed on the lifting inner cylinder and is used for detecting the turbidity of the water at the height of the lifting inner cylinder, and the lifting driving element is connected with the lifting inner cylinder and is used for driving the lifting inner cylinder to move up and down.

[0012] In some embodiments, the stirring mechanism comprises a support, a middle shaft, at least one scraping strip and a rotating driving element, the support is fixedly arranged above the sedimentation tank, the middle shaft is rotatably arranged on the support and coaxially arranged with the blowdown outlet, the scraping strip is fixed on the middle shaft and slidingly arranged on the inner bottom surface of the sedimentation tank, and the rotating driving element is connected with the middle shaft and is used for driving the middle shaft to rotate.

[0013] In some embodiments, the rotating driving element is a rotating driving motor, which is connected with the middle shaft and is used for driving the middle shaft to rotate.

[0014] In some embodiments, the stirring mechanism further comprises a plurality of connecting frames, one end of the connecting frame is fixedly connected with the middle shaft, and the other end of the connecting frame is fixedly connected with the corresponding scraping strip.

[0015] In some embodiments, the chute-liftable thickener further comprises a feeding mechanism, the feeding mechanism comprises a feeding pipe, and the feeding pipe is in communication with the sedimentation cavity.

[0016] In some embodiments, the feeding mechanism further comprises a blocking ring, the blocking ring is fixedly arranged at the middle part of the sedimentation cavity, and the feeding pipe is in communication with the inner cavity of the blocking ring.

[0017] In some embodiments, the lower end of the blowdown outlet is connected with a material collecting hopper.

[0018] In some embodiments, the chute-liftable thickener further comprises a discharging valve, one end of the discharging valve is in communication with the outlet of the material collecting hopper.

[0019] In some embodiments, the lifting driving element comprises a lifting driving cylinder, the cylinder body of the lifting driving cylinder is fixedly arranged on the support, and the output shaft of the lifting driving cylinder is fixedly connected with the lifting inner cylinder.

[0020] In some embodiments, the output shaft of the lifting driving cylinder is fixedly connected with the lifting inner cylinder via a connecting rod.

[0021] Compared with the prior art, the chute liftable thickener provided by the application has the beneficial effects that: a lifting inner cylinder is arranged on the inner side wall of the overflow chute, the turbidity of the water at the height of the lifting inner cylinder is detected by the turbidity detector, and the lifting inner cylinder is driven to move up and down by the lifting driving member, so that the turbidity of the water at the height of the lifting inner cylinder is kept stable, thereby the turbidity of the supernatant discharged through the lifting inner cylinder is stable, and when the turbidity of the supernatant at the upper part of the sedimentation tank is low, the lifting inner cylinder is lowered, so that the supernatant is quickly discharged, the supernatant discharge efficiency is improved, and the thickening efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a structural schematic view of a chute liftable thickener provided by an embodiment of the application;

[0023] Fig. 2 is a partial enlarged view of region A in Fig. 1;

[0024] Marked with 1 is a sedimentation tank, 11 is a drain, 12 is an overflow chute, 121 is a drain port, 13 is a material collecting hopper, 14 is a discharge valve, 2 is an agitating mechanism, 21 is a support, 22 is a middle shaft, 23 is a scraping strip, 24 is a rotating driving member, 25 is a connecting frame, 3 is an adjusting mechanism, 31 is a lifting inner cylinder, 32 is a turbidity detector, 33 is a lifting driving member, 331 is a lifting driving cylinder, 332 is a connecting rod, 4 is a feeding mechanism, and 41 is a feeding pipe, 42 is a blocking ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and not to limit the application.

[0026] In order to solve the technical problems of low supernatant discharge efficiency and low thickening efficiency of the thickener, the application provides a chute liftable thickener, which can improve the supernatant discharge efficiency and further improve the thickening efficiency.

[0027] Please refer to Fig. 1, which is a structural schematic view of a chute liftable thickener in an embodiment of the application. The chute liftable thickener comprises a sedimentation tank 1, an agitating mechanism 2 and an adjusting mechanism 3.

[0028] The sedimentation tank 1 has a sedimentation cavity, a drain 11 is arranged on the center of the inner bottom surface of the sedimentation tank 1, an overflow chute 12 is further formed on the edge of the sedimentation tank 1 and communicates with the sedimentation cavity, and a drain port 121 is arranged on the side wall of the overflow chute 12 and communicates with the overflow chute 12;

[0029] The agitating mechanism 2 is used for agitating the mixture in the sedimentation tank 1;

[0030] The adjusting mechanism 3 comprises a lifting inner cylinder 31, a turbidity detector 32 and a lifting driving member 33, the lifting inner cylinder 31 is slidingly arranged on the inner side wall of the overflow groove 12, the turbidity detector 32 is installed on the lifting inner cylinder 31 and is used for detecting the turbidity of water at the height of the lifting inner cylinder 31, and the lifting driving member 33 is connected with the lifting inner cylinder 31 and is used for driving the lifting inner cylinder 31 to move up and down.

[0031] In use, the ore pulp is introduced into the sedimentation tank 1 and is agitated by the agitating mechanism 2, under the action of gravity, the solid components in the ore pulp descend, and the supernatant is gradually formed at the top, the turbidity detector 32 is used for detecting the turbidity of water at the height of the lifting inner cylinder 31, when the turbidity of water is higher than the preset turbidity, the lifting driving member 33 drives the lifting inner cylinder 31 to ascend, so as to avoid that the turbid supernatant is directly discharged into the overflow groove 12, when the turbidity of water is lower than the preset turbidity, the lifting driving member 33 drives the lifting inner cylinder 31 to descend, so as to facilitate the rapid discharge of the clear supernatant below, and the supernatant enters the overflow groove 12 after passing over the top of the lifting inner cylinder 31 and is discharged from the water outlet 121.

[0032] The application slidingly arranges a lifting inner cylinder 31 on the inner side wall of the overflow groove 12, detects the turbidity of water at the height of the lifting inner cylinder 31 by the turbidity detector 32, and drives the lifting inner cylinder 31 to move up and down by the lifting driving member 33, so as to keep the turbidity of water at the height of the lifting inner cylinder 31 stable, thereby keeping the turbidity of the supernatant discharged through the lifting inner cylinder 31 stable, and when the turbidity of the supernatant at the top of the sedimentation tank 1 is low, the lifting inner cylinder 31 is lowered, so as to rapidly discharge the supernatant, improve the discharge efficiency of the supernatant, and further improve the thickening efficiency.

[0033] In one of the embodiments, referring to FIG. 1, the agitating mechanism 2 comprises a support 21, a middle shaft 22, at least one scraping strip 23 and a rotating driving member 24, the support 21 is fixedly arranged above the sedimentation tank 1, the middle shaft 22 is rotatably arranged on the support 21 and is coaxially arranged with the blowdown opening 11, the scraping strip 23 is fixed on the middle shaft 22 and is slidingly arranged on the inner bottom surface of the sedimentation tank 1, and the rotating driving member 24 is connected with the middle shaft 22 and is used for driving the middle shaft 22 to rotate.

[0034] In one of the embodiments, referring to FIG. 1, the rotating driving member 24 is a rotating driving motor, the rotating driving motor is connected with the middle shaft 22 and is used for driving the middle shaft 22 to rotate.

[0035] In one of the embodiments, referring to Figure 1, the stirring mechanism 2 further comprises a plurality of connecting frames 25, one end of the connecting frame 25 is fixedly connected with the middle shaft 22, and the other end of the connecting frame 25 is fixedly connected with the corresponding scraping strip 23.

[0036] In one of the embodiments, referring to Figure 1, the chute liftable thickener further comprises a feeding mechanism 4, the feeding mechanism 4 comprises a feeding pipe 41, and the feeding pipe 41 is communicated with the precipitation cavity.

[0037] In one of the embodiments, referring to Figure 1, the feeding mechanism 4 further comprises a blocking ring 42, the blocking ring 42 is fixedly arranged at the middle part of the precipitation cavity, and the feeding pipe 41 is communicated with the inner cavity of the blocking ring 42.

[0038] In one of the embodiments, referring to Figure 1, the lower end of the blowdown port 11 is connected with a material collecting hopper 13.

[0039] In one of the embodiments, referring to Figure 1, the chute liftable thickener further comprises a discharge valve 14, one end of the discharge valve 14 is communicated with the outlet of the material collecting hopper 13.

[0040] In one of the embodiments, referring to Figure 1, the lifting driving member 33 comprises a lifting driving cylinder 331, the cylinder body of the lifting driving cylinder 331 is fixedly arranged on the support 21, and the output shaft of the lifting driving cylinder 331 is fixedly connected with the lifting inner cylinder 31.

[0041] In one of the embodiments, referring to Figure 1, the output shaft of the lifting driving cylinder 331 is fixedly connected with the lifting inner cylinder 31 through a connecting rod 332.

[0042] In order to better understand the present application, the technical solutions of the present application are described in detail in combination with Figures 1 to 2: in use, the ore pulp is introduced into the precipitation tank 1, and the ore pulp in the precipitation tank 1 is stirred by the stirring mechanism 2, under the action of gravity, the solid components in the ore pulp descend, and the top gradually forms supernatant, 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 driving member 33 drives the lifting inner cylinder 31 to ascend, so as to avoid that the turbid supernatant is directly discharged into the overflow tank 12, when the turbidity of the water is lower than the preset turbidity, the lifting driving member 33 drives the lifting inner cylinder 31 to descend, so as to facilitate the rapid discharge of the clear supernatant below, and after the supernatant passes over the top of the lifting inner cylinder 31, the supernatant enters the overflow tank 12, and then is discharged from the water outlet 121.

[0043] The application is characterized in that a lifting inner cylinder 31 is arranged on the inner side 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 driving member 33, so that the turbidity of the water at the height of the lifting inner cylinder 31 is kept stable, thereby keeping the turbidity of the supernatant liquid discharged over the lifting inner cylinder 31 stable, so that when the turbidity of the supernatant liquid on the upper part of the sedimentation tank 1 is low, the lifting inner cylinder 31 is lowered, thereby quickly discharging the supernatant liquid, improving the discharge efficiency of the supernatant liquid, and further improving the thickening efficiency.

[0044] The specific embodiments of the application described above do not constitute a limitation on the protection scope of the application. Any various other corresponding changes and modifications made according to the technical concept of the application shall be included in the protection scope of the claims of the application.

Claims

1. A chute liftable thickener characterized by, The utility model relates to a sedimentation tank, which comprises: a sedimentation tank having a sedimentation cavity, a sewage outlet being formed in the center of the inner bottom surface of the sedimentation tank, and an overflow groove being formed in the edge of the sedimentation tank and communicating with the sedimentation cavity, a drainage outlet being formed in the side wall of the overflow groove and communicating with the overflow groove; a stirring mechanism for stirring the mixture in the sedimentation tank; and an adjusting mechanism comprising a lifting inner cylinder, a turbidity detector, and a lifting driving member, the lifting inner cylinder being slidingly arranged on the inner side wall of the overflow groove, the turbidity detector being mounted on the lifting inner cylinder and used for detecting the turbidity of the water at the height of the lifting inner cylinder, and the lifting driving member being connected with the lifting inner cylinder and used for driving the lifting inner cylinder to move up and down.

2. The trough liftable thickener according to claim 1, characterized in that, The stirring mechanism comprises a support, a middle shaft, at least one scraping strip, and a rotating driving member, the support being fixedly arranged above the sedimentation tank, the middle shaft being rotatably arranged on the support and coaxially arranged with the sewage outlet, the scraping strip being fixed on the middle shaft and slidingly arranged on the inner bottom surface of the sedimentation tank, and the rotating driving member being connected with the middle shaft and used for driving the middle shaft to rotate.

3. The chute liftable thickener according to claim 2, characterized in that, The rotating driving member is a rotating driving motor, which is connected with the middle shaft and used for driving the middle shaft to rotate.

4. The chute liftable thickener according to claim 2, characterized in that, The stirring mechanism further comprises a plurality of connecting frames, one end of each connecting frame being fixedly connected with the middle shaft, and the other end of each connecting frame being fixedly connected with the corresponding scraping strip.

5. The chute liftable thickener according to claim 1, characterized in that, The utility model further comprises a feeding mechanism, which comprises a feeding pipe and communicates with the sedimentation cavity.

6. The chute liftable thickener according to claim 5, characterized in that, The feeding mechanism further comprises a blocking ring, which is fixed to the middle part of the sedimentation cavity, and the feeding pipe communicates with the inner cavity of the blocking ring.

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

8. The chute liftable thickener according to claim 7, characterized in that, The utility model further comprises a discharge valve, one end of which communicates with the outlet of the material collecting hopper.

9. The chute liftable thickener according to claim 2, characterized in that, The lifting driving member comprises a lifting driving cylinder, the cylinder body of the lifting driving cylinder being fixed to the support, and the output shaft of the lifting driving cylinder being fixedly connected with the lifting inner cylinder.

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

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