Thickener cone pit wall cleaning device and thickener

Abstract

The utility model discloses a thickener cone pit wall cleaning device and a thickener, and belongs to the technical field of thickeners, the thickener cone pit wall cleaning device comprises a built-in pipeline and an external pipeline, the built-in pipeline is used for being arranged in a thickener body and is close to a bottom outlet of the thickener body, the built-in pipeline comprises an arc-shaped pipeline, and the arc-shaped pipeline is arranged in the thickener body and is close to a bottom outlet of the thickener body. The arc-shaped pipeline is provided with a nozzle, and the nozzle faces the middle part of the conical pit of the thickener body; the external pipeline is used for being arranged outside the thickener body, the external pipeline is communicated with the internal pipeline, and the external pipeline is connected with a water source. The built-in pipeline is arranged at the position, close to the bottom outlet of the thickener body, in the thickener body, and water flow can be sprayed into the thickener body through the arc-shaped pipeline of the built-in pipeline, so that a wall can be damaged, the thickener body can be efficiently maintained under the non-stop condition, the manual intervention cost is reduced, and the working efficiency is improved. And the production continuity is ensured.

Description

A thickener cone pit wall cleaning device and thickener Technical Field

[0001] This utility model relates to the field of thickener technology, and in particular to a thickener cone pit wall cleaning device and a thickener. Background Technology

[0002] Thickeners, as solid-liquid separation devices based on the principle of gravity settling, are widely used in industrial fields requiring solid-liquid enrichment and separation, such as hydrometallurgy, mineral processing plants, and chemical plants. They achieve solid-liquid separation by causing solid particles in the slurry to settle and concentrate through gravity. The underflow slurry is discharged through a bottom pumping system, while the overflow water is recycled. However, in actual operation, due to factors such as excessive feed rate and complex material properties (e.g., high particle viscosity and uneven settling rate), a "wall" phenomenon often occurs in the central area of ​​the thickener cone pit, leading to the following problems:

[0003] Underflow transport obstructed: The accumulation of the wall blocks the slurry flow channel at the bottom of the cone pit, preventing the underflow pump from discharging the slurry normally and affecting subsequent filtration processes;

[0004] Increased equipment load: The wall increases the running resistance of the rake frame and the surrounding walking pressure rises abnormally. Long-term overload can easily cause the rake frame to deform or even break, threatening equipment safety.

[0005] High maintenance costs: Existing solutions require shutting down and emptying the thickener, relying on manual cleaning of the thickener walls, which is not only time-consuming and labor-intensive, but also severely restricts production efficiency and causes economic losses.

[0006] Currently, the industry lacks effective online treatment devices for the wall-building problem. There is an urgent need for a special device that can automatically or semi-automatically remove the wall-building in the cone pit during the operation of the thickener, so as to solve the drawbacks of cleaning during shutdown and improve the efficiency of solid-liquid separation and equipment stability. Summary of the Invention

[0007] The purpose of this invention is to provide a thickener cone pit wall cleaning device and a thickener to solve the problems existing in the prior art. An internal pipeline is provided inside the thickener body near the bottom outlet position of the thickener body. Water can be sprayed into the thickener body through the arc-shaped pipeline of the internal pipeline to break down the wall, thereby achieving efficient maintenance of the thickener body without stopping the machine, reducing manual intervention costs, and ensuring the continuity of production.

[0008] To achieve the above objectives, this utility model provides the following solution:

[0009] This utility model provides a thickener cone pit wall cleaning device, including an internal pipeline and an external pipeline. The internal pipeline is installed inside the thickener body and near the bottom outlet of the thickener body. The internal pipeline includes an arc-shaped pipeline with a nozzle facing the center of the cone pit of the thickener body. The external pipeline is installed outside the thickener body and is connected to the internal pipeline. The external pipeline is connected to a water source.

[0010] In one embodiment, the nozzle is configured in a funnel shape, wherein the inlet diameter of the funnel-shaped nozzle is smaller than the outlet diameter.

[0011] In one embodiment, the nozzle is formed by four trapezoidal steel plates connected circumferentially, and the radial cross-section of the nozzle is rectangular.

[0012] In one embodiment, the center line of the arc-shaped trajectory of the arc-shaped pipeline coincides with the central axis of the cone pit of the thickener body.

[0013] In one embodiment, the built-in pipeline further includes a connecting pipeline. The arc-shaped pipeline is disposed on the inner wall of the cone pit bottom plate of the thickener body. The main body of the connecting pipeline is disposed on the inner wall of the small cone pit bottom plate of the thickener body. The inlet end of the connecting pipeline is connected to the external pipeline, and the outlet end of the connecting pipeline is connected to the arc-shaped pipeline.

[0014] In one embodiment, the external pipeline is equipped with a pneumatic regulating valve, which is used to control the on / off state and opening degree of the external pipeline.

[0015] This utility model also provides a thickener, including a thickener body and a thickener cone pit wall cleaning device as described above, wherein the built-in pipeline is disposed inside the thickener body and the external pipeline is disposed outside the thickener body.

[0016] In one embodiment, the arc-shaped pipeline is located between the rake frame and the bottom plate of the cone pit of the thickener body, and the arc-shaped pipeline and the rake frame are spaced apart.

[0017] In one embodiment, the arc-shaped pipeline is disposed between the central rotating drum columns of the thickener body.

[0018] In one embodiment, the built-in pipeline is provided in three sets, and the three sets of built-in pipelines are evenly spaced along the circumference. Each set of built-in pipelines is connected to a corresponding external pipeline.

[0019] The present invention achieves the following technical advantages over the prior art:

[0020] This invention features an internal pipeline located near the bottom outlet of the thickener body. The internal pipeline includes an arc-shaped pipeline, to which water is supplied via an external pipeline. Water is then sprayed into the thickener body through nozzles in the arc-shaped pipeline, thereby breaking down the wall and ensuring unobstructed flow at the bottom outlet of the thickener body. This allows for efficient maintenance of the thickener body without shutting down the machine, reducing manual intervention costs and ensuring continuous production. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a schematic diagram of the thickener in an embodiment of this utility model;

[0023] Figure 2 is a front view of the thickener in an embodiment of this utility model;

[0024] Figure 3 is a schematic diagram of the external exterior of the bottom plate of the small cone pit in an embodiment of this utility model;

[0025] Figure 4 is a schematic diagram of the interior of the bottom plate of the small cone pit in an embodiment of this utility model;

[0026] Figure 5 is a schematic diagram of the thickener cone pit wall cleaning device in an embodiment of this utility model;

[0027] Figure 6 is a schematic diagram of the nozzle in an embodiment of this utility model;

[0028] The components include: 1. Thickener body; 2. Rake frame; 3. Central drum; 4. Central drum column; 5. Thickener cone pit wall cleaning device.

[0029] 11. Conical pit bottom plate; 12. Small conical pit bottom plate; 121. Bottom outlet;

[0030] 51. Curved pipeline; 511. Nozzle; 52. External pipeline; 521. Pneumatic regulating valve; 53. Connecting pipeline. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The purpose of this invention is to provide a thickener cone pit wall cleaning device and a thickener to solve the problems existing in the prior art. An internal pipeline is installed inside the thickener body near the bottom outlet position. Water can be sprayed into the thickener body through the arc-shaped pipeline of the internal pipeline to break down the wall, thereby achieving efficient maintenance of the thickener body without stopping the machine, reducing manual intervention costs, and ensuring the continuity of production.

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] As shown in Figures 1 to 6, this utility model provides a thickener cone pit wall cleaning device, including an internal pipeline and an external pipeline 52. The internal pipeline is installed inside the thickener body 1 and near the bottom outlet 121 of the thickener body 1. The internal pipeline includes an arc-shaped pipeline 51, and each arc-shaped pipeline 51 is provided with a nozzle 511. Each arc-shaped pipeline 51 is provided with at least one nozzle 511, and the nozzles 511 face the center of the cone pit of the thickener body 1. The arc-shaped pipeline 51 can distribute the nozzles 511 along an arc-shaped trajectory so that the water flow from the nozzles 511 is directed towards the center of the cone pit. The main function of the internal pipeline is to circulate the water flow inside the thickener body 1 and deliver it to a set position, which is the position of the nozzle 511. The nozzle 511 controls the jet direction so that the water flow reaches the desired spray position. To minimize obstruction of the internal pipelines to the flow of ore inside the thickener body 1, the internal pipelines can be flat and fitted to the inner wall of the thickener body 1. An external pipeline 52 is installed outside the thickener body 1. One end of the external pipeline 52 connects to the internal pipeline, and the other end is connected to a water source. A water pump can be installed to pump water from the source to the internal pipeline, which is then sprayed out through nozzle 511. The other end of the external pipeline 52 can also be connected to the thickener's underflow backwash water pipeline, using backwash water to jet and flush the ore.

[0035] This invention features an internal pipeline located near the bottom outlet 121 inside the thickener body 1. The internal pipeline includes an arc-shaped pipeline 51. Water is supplied to the arc-shaped pipeline 51 via an external pipeline 52. Water can be sprayed into the thickener body 1 through the nozzle 511 of the arc-shaped pipeline 51, thereby breaking down the wall and ensuring the unobstructed flow of the bottom outlet 121 of the thickener body 1. This enables efficient maintenance of the thickener body 1 without shutting down the machine, reduces manual intervention costs, and ensures continuous production.

[0036] In one embodiment, as shown in FIG6, the nozzle 511 is configured as a trumpet shape, and the radial cross section of the trumpet shape can be rectangular or circular. Furthermore, the inlet diameter of the trumpet-shaped nozzle 511 is smaller than the outlet diameter, so as to expand the spray area of ​​the water flow, improve the cleaning effect on the accumulated ore, and avoid the formation of thickening cone pit walls.

[0037] In one embodiment, as shown in FIG6, the nozzle 511 is formed by four trapezoidal steel plates connected together in a circumferential manner. In this case, the radial section of the nozzle 511 is rectangular, so that the backwash water or water flow sprayed by the nozzle 511 is sprayed out in a fan shape.

[0038] In one embodiment, as shown in Figures 4 and 5, the arc trajectory of the arc-shaped pipeline 51 is a circular arc. The center line of the circular arc (which passes through the center of the circle containing the circular arc and is perpendicular to the plane containing the circular arc) coincides with the central axis of the cone pit of the thickener body 1. Thus, the nozzles 511 on the arc-shaped pipeline 51 are distributed circumferentially around the central axis of the cone pit, and the spray direction of the nozzles 511 is towards the central axis of the cone pit.

[0039] In one embodiment, as shown in Figures 4 and 5, the built-in pipeline also includes a connecting pipeline 53. An arc-shaped pipeline 51 is installed on the inner wall of the cone-shaped pit bottom plate 11 of the thickener body 1, and the main body of the connecting pipeline 53 is installed on the inner wall of the small cone-shaped pit bottom plate 12 of the thickener body 1. The cone-shaped pit bottom plate 11 has a certain taper, and the taper of the small cone-shaped pit bottom plate 12 is greater than that of the cone-shaped pit bottom plate 11, facilitating the flow of the ore. Ultimately, the ore is discharged through the bottom outlet 121 of the small cone-shaped pit bottom plate 12. Because the arc-shaped pipeline 51 is installed on the inner wall of the cone-shaped pit bottom plate 11, it can tilt downwards and towards the interior of the small cone-shaped pit along with the tilt direction of the cone-shaped pit bottom plate 11. Therefore, the water jet from the nozzle 511 of the arc-shaped pipeline 51 can push the ore into the small cone-shaped pit, improving the ore's mobility and preventing ore accumulation. The inlet end of the connecting pipeline 53 is connected to the external pipeline 52, and the outlet end of the connecting pipeline 53 is connected to the arc-shaped pipeline 51. The connecting pipeline 53 is used to connect the external pipeline 52 to the arc-shaped pipeline 51. In this example, the connection point between the connecting pipeline 53 and the external pipeline 52 penetrates through the bottom plate 12 of the small cone pit. This avoids damage to the bottom plate 11 of the cone pit caused by the connection point penetrating through it, ensuring the normal operation of the rake frame 2, etc., and also reducing the sealing requirements at the penetration point.

[0040] In one embodiment, the external pipeline 52 is equipped with a regulating valve. The valve controls the on / off state and opening degree of the external pipeline 52. The regulating valve can be an electric valve or a pneumatic valve. In this example, a pneumatic regulating valve 521 is used. The control system of the pneumatic regulating valve 521 is connected to the central control room and can be remotely started or manually controlled. In automatic control mode, after activation, it can be set to cycle on and off at intervals to achieve periodic automatic opening or closing for automated control, ensuring the pressure of the jet water flow or backwash water.

[0041] Referring again to Figures 1-6, this utility model also provides a thickener, including a thickener body 1 and a thickener cone pit wall cleaning device 5 as described above. An internal pipeline is located inside the thickener body 1, and an external pipeline 52 is located outside the thickener body 1. A water source is connected through the external pipeline 52, supplying water to the internal pipeline, which is then sprayed out through the nozzle 511 of the arc-shaped pipeline 51. Because this utility model's thickener includes the thickener cone pit wall cleaning device 5, it can clean the wall, improve the fluidity of the ore, and prevent slurry accumulation.

[0042] In one embodiment, as shown in Figure 1, the arc-shaped pipeline 51 is located between the rake frame 2 and the cone pit bottom plate 11 of the thickener body 1. The arc-shaped pipeline 51 and the rake frame 2 are spaced apart to avoid the arc-shaped pipeline 51 rubbing against the rake frame 2. The distance between the arc-shaped pipeline 51 and the rake frame 2 is set to 5cm to 9cm, and in this example it is set to 7cm.

[0043] In one embodiment, as shown in FIG4, the arc-shaped pipeline 51 is disposed between the central rotating drum columns 4 of the thickener body 1. The top end of the central rotating drum column 4 is connected to the central rotating drum 3, and the bottom end of the central rotating drum column 4 is connected to the bottom plate 12 of the small cone pit. The water jet from the nozzle 511 of the arc-shaped pipeline 51 can flow through the gap between the central rotating drum columns 4, avoiding the interference of the central rotating drum columns 4 on the water flow.

[0044] In one embodiment, as shown in Figures 4 and 5, three sets of built-in pipelines are provided, and the three sets of built-in pipelines are evenly spaced along the circumference. Each set of built-in pipelines is connected to a corresponding external pipeline 52. In this example, the spacing between the built-in pipelines is 120°, and the water jet from each arc-shaped pipeline 51 is directed toward the center of the cone pit.

[0045] When the thickener body 1 of this utility model is started, the slurry in the original bottom backflow water can be transported to the outer edge of the bottom plate 12 of the small cone pit through the external pipeline 52 and the internal pipeline. It is then sprayed out by the trumpet-shaped nozzle 511, impacting the ore accumulation on the side of the central rotating column 4 of the thickener body 1, thus preventing slurry accumulation. This device has a simple structure and is easy to operate. It can clean the accumulated ore without stopping the machine, avoiding the problems of high equipment failure rate and low production efficiency caused by the thickener cone pit wall.

[0046] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for cleaning thickener cone pit walls, characterized in that, include: An internal pipeline is provided inside the thickener body and near the bottom outlet of the thickener body. The internal pipeline includes an arc-shaped pipeline with a nozzle facing the center of the conical pit of the thickener body. An external pipeline is provided outside the thickener body and is connected to the internal pipeline. The external pipeline is connected to a water source.

2. The thickener cone pit wall cleaning device according to claim 1, characterized in that: The nozzle is configured in a funnel shape, with the inlet diameter of the funnel-shaped nozzle being smaller than the outlet diameter.

3. The thickener cone pit wall cleaning device according to claim 2, characterized in that: The nozzle is formed by four trapezoidal steel plates connected around its circumference, and the radial cross-section of the nozzle is rectangular.

4. The thickener cone pit wall cleaning device according to claim 1, characterized in that: The center line of the arc-shaped trajectory of the arc-shaped pipeline coincides with the central axis of the cone pit of the thickener body.

5. The thickener cone pit wall cleaning device according to claim 1, characterized in that: The built-in pipeline also includes a connecting pipeline. The arc-shaped pipeline is used to be installed on the inner wall of the cone pit bottom plate of the thickener body. The main body of the connecting pipeline is used to be installed on the inner wall of the small cone pit bottom plate of the thickener body. The inlet end of the connecting pipeline is connected to the external pipeline, and the outlet end of the connecting pipeline is connected to the arc-shaped pipeline.

6. The thickener cone pit wall cleaning device according to claim 1, characterized in that: The external pipeline is equipped with a pneumatic regulating valve, which is used to control the on / off state and opening degree of the external pipeline.

7. A thickener, characterized in that: The device includes a thickener body and a thickener cone pit wall cleaning device as described in any one of claims 1-6, wherein the built-in pipeline is disposed inside the thickener body and the external pipeline is disposed outside the thickener body.

8. The thickener according to claim 7, characterized in that: The arc-shaped pipeline is located between the rake frame and the bottom plate of the cone pit of the thickener body, and there is a gap between the arc-shaped pipeline and the rake frame.

9. The thickener according to claim 7, characterized in that: The arc-shaped pipeline is located between the central rotating drum columns of the thickener body.

10. The thickener according to claim 7, characterized in that: The built-in pipeline is provided in three sets, and the three sets of built-in pipelines are evenly spaced along the circumference. Each set of built-in pipelines is connected to a corresponding external pipeline.

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