A high-efficiency anti-clogging filter device for rare earth compound precipitation filtration

Abstract

This utility model discloses a high-efficiency anti-clogging filtration device for rare earth compound precipitation filtration, comprising a device body with a feed inlet at the top. The device body is divided into a guide chamber coaxial with the feed inlet, a collection chamber, and a detachable filter screen located between the two. The guide chamber is equipped with an annular pipe for high-pressure water delivery and a rotating nozzle. The collection chamber wall is provided with several adsorption ports for vacuuming, and the bottom of the collection chamber has a discharge port and a waste discharge port arranged side by side. This improves the filtration rate and efficiency; timely cleaning of the filter screen prevents clogging without the need for disassembly and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of rare earth compound filtration technology, specifically to a high-efficiency anti-clogging filtration device for rare earth compound precipitation filtration. Background Technology

[0002] In the rare earth smelting and separation process, the carbonate precipitation method and subsequent dissolution and transformation processes generate a large amount of precipitate slurry that requires solid-liquid separation, such as rare earth carbonates. The precipitate slurry is usually a fine-particle colloidal substance with high filtration resistance; during precipitation, it easily forms a dense and viscous filter cake layer within the filter screen pores, causing a sharp drop in filtration rate or even complete blockage; the filter screen is easily clogged by the viscous filter cake, requiring frequent shutdowns for disassembly and cleaning, resulting in low production efficiency and high labor intensity.

[0003] Therefore, this application is submitted. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency anti-clogging filter for rare earth carbonate precipitation filtration. The device body is divided into a flow guiding chamber and a collection chamber, and a filter screen located between the two. After the viscous material in the filter screen is filtered and collected by vacuum suction, the filter screen is washed with high-pressure water, so that the viscous substances in the pores are discharged through the waste outlet, thereby improving the filtration effect and the cleaning effect of the filter screen, and solving the above-mentioned problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] A high-efficiency anti-clogging filter for rare earth compound precipitation filtration includes a device body with an inlet at the top. The device body is divided into a flow guiding chamber and a collection chamber coaxial with the inlet, and a detachable filter screen located between the two. The flow guiding chamber is provided with an annular pipe for high-pressure water delivery and a rotating nozzle. The walls of the collection chamber are provided with several adsorption ports for vacuuming, and the bottom of the collection chamber is provided with a discharge port and a waste discharge port in parallel.

[0007] Furthermore, the collection chamber includes a first chamber at the top and a second chamber at the bottom, and the adsorption port penetrates the wall of the first chamber and is flush with the wall.

[0008] Furthermore, the end of the adsorption port away from the first cavity is connected to the second annular tube, and the bottom of the second annular tube is provided with a pipeline connected to the vacuum pump.

[0009] Furthermore, the inlet end of the adsorption port is funnel-shaped and equipped with a screen, the pore size of which is smaller than that of the filter screen.

[0010] Furthermore, the side of the annular tube two is provided with several fixing rods that are connected to the inner wall of the device body.

[0011] Furthermore, the first cavity is a constant diameter cavity, and the second cavity is a variable diameter cavity, with the bottom inner diameter of the variable diameter cavity being smaller than the top inner diameter.

[0012] Furthermore, the flow guiding cavity has a conical structure, and the top of the annular tube is fixedly connected to the inner wall of the flow guiding cavity.

[0013] Furthermore, a high-pressure water pipe is provided on the side of the annular pipe, penetrating the cavity wall of the guide cavity and one side of the device body.

[0014] Furthermore, the inner wall of the device body is symmetrically provided with mounting plates having grooves, and the two ends of the filter screen are provided with insert plates located in the grooves.

[0015] Furthermore, the inner diameter of the first cavity is larger than the spacing of the assembly plates.

[0016] The beneficial effects of this utility model are:

[0017] This invention divides the device body into a guide chamber and a collection chamber, with a filter screen located between them. It also incorporates a rotating nozzle for transmitting high-pressure water and a vacuum suction port. The filtered material is drawn into the second chamber of the collection chamber by negative pressure suction and discharged through the discharge port, resulting in a uniform negative pressure distribution that improves filtration rate and efficiency. High-pressure water from the rotating nozzle completely covers the surface of the filter screen for high-pressure rinsing, flushing viscous substances from the filter screen surface and pores into the second chamber of the collection chamber and discharging them through the waste discharge port. This timely cleaning of the filter screen prevents clogging, improves filtration efficiency, and eliminates the need for disassembly and cleaning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a top view of the collection cavity of this utility model.

[0020] Figure 3 This is a bottom view of the annular tube II of this utility model.

[0021] Reference numerals: 1-device body, 10-feed inlet, 11-waste outlet, 12-discharge outlet, 13-assembly plate, 14-valve, 2-guide cavity, 3-ring pipe one, 30-high pressure water pipe, 31-rotating nozzle, 4-filter screen, 40-insertion plate, 5-vacuum pump, 50-ring pipe two, 51-adsorption port, 52-screen, 53-fixed rod, 6-collection cavity, 60-first cavity, 61-second cavity. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0023] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] Embodiment 1 of this utility model is a high-efficiency anti-clogging filter device for rare earth compound precipitation filtration, including a device body 1 with a feed inlet 10 at the top. The device body 1 is divided into a flow guiding cavity 2 and a collection cavity 6 coaxial with the feed inlet 10, and a detachable filter screen 4 located between the two. The flow guiding cavity 2 is provided with an annular pipe 3 for high-pressure water delivery and a rotating nozzle 31. The cavity wall of the collection cavity 6 is provided with several adsorption ports 51 for vacuuming, and the bottom of the collection cavity 6 is provided with a discharge port 12 and a waste discharge port 11 arranged side by side.

[0027] Reference Figure 1 and Figure 2This invention divides the main body 1 of the device into two parts: a guide chamber 2 at the top for feeding material and guiding it onto the surface of the filter screen 4 for subsequent filtration; and a collection chamber 6 at the bottom, with a discharge port 12 and a waste discharge port 11 arranged side by side at the bottom for transferring the precipitated material after filtration and the waste material after cleaning the filter screen 4. The collection chamber 6 also has adsorption ports 51 arranged in a uniform ring within the chamber wall, creating a uniform negative pressure distribution, which helps to form a relatively uniform negative pressure field below the filter screen 4. This negative pressure provides the filtration effect, causing the material to be adsorbed and filtered from the filter screen 4 to the bottom of the collection chamber 6. After filtration is complete, the valve 14 at the discharge port 12 is opened to discharge the material. During the discharge process, the valve 14 at the waste discharge port 11 is closed. This valve 14 is existing technology and will not be described in detail here.

[0028] Meanwhile, to promptly clean the surface and pores of the filter screen 4, the annular pipe 3 and the rotating nozzle 31 located inside the guide cavity 2 are connected to an external high-pressure water tank. This allows for high-pressure water delivery to rinse the filter screen 4. During rinsing, viscous impurities on the surface and in the pores of the filter screen 4 are washed into the collection chamber 6 and finally discharged from the waste outlet 11. This timely cleaning of the filter screen 4 prevents clogging and improves filtration efficiency. The rotating nozzle 31 is existing technology and can rotate at multiple angles; details are omitted here. Furthermore, there are several rotating nozzles 31 arranged in a ring inside the guide cavity 2 to ensure comprehensive rinsing of the filter screen 4 and improve rinsing coverage.

[0029] In some preferred embodiments, the collection chamber 6 is divided into upper and lower sections. The collection chamber 6 includes a first chamber 60 at the top and a second chamber 61 at the bottom. The adsorption port 51 penetrates the wall of the first chamber 60 and is flush with the wall. The end of the adsorption port 51 away from the first chamber 60 is connected to the second annular tube 50. The bottom of the second annular tube 50 is provided with a pipeline connected to the vacuum pump 5.

[0030] The adsorption port 51 is evacuated via the annular tube 50 and corresponding pipeline through the vacuum pump 5. The adsorption end of the adsorption port 51 is flush with the wall of the first cavity 60 to prevent the adsorption end of the adsorption port 51 from passing through the wall of the first cavity 60, thus preventing material from being collected in the collection chamber 6. Furthermore, the inlet end of the adsorption port 51 is funnel-shaped and equipped with a screen 52, the aperture of which is smaller than that of the filter screen 4. The screen 52 helps prevent material from entering the annular tube 50 through the adsorption port 51 during vacuuming, thus minimizing material collection. The aperture of the screen 52 is not only smaller than that of the filter screen 4 but also smaller than the particle size of the material, thereby reducing the amount of material entering the adsorption port 51.

[0031] In addition, to prevent materials from being sucked into the vacuum pump 5 and the pipeline, a gas-liquid separator is installed between the vacuum pump 5 and the annular pipe 50. This is existing technology and will not be described in detail here.

[0032] During the vacuuming process, to ensure the secure connection of the second annular tube 50 inside the device body 1, several fixing rods 53 connected to the inner wall of the device body 1 are provided on the side of the second annular tube 50. The fixing rods 53 are connected to the second annular tube 50 and the device body 1 by welding, that is, the second annular tube 50 is made of metal.

[0033] The shape and structure of the first cavity 60 and the second cavity 61 are described here. The first cavity 60 is a cavity of constant diameter, and the second cavity 61 is a cavity of variable diameter, with the bottom inner diameter being smaller than the top inner diameter. The first cavity 60 is a cavity of constant diameter, which serves two purposes: firstly, to receive the material filtered by the entire filter screen 4, and secondly, to provide installation conditions for the adsorption port 51, ensuring that the inlet end of the adsorption port 51 is flush with the cavity wall of the first cavity 60, thus preventing material from entering the interior of the adsorption port 51.

[0034] Example 2

[0035] This embodiment 2 is implemented based on embodiment 1. The flow guiding cavity 2 has a conical structure, and the top of the annular tube 3 is fixedly connected to the inner wall of the flow guiding cavity 2. A high-pressure water delivery pipe 30 is provided on the side of the annular tube 3, penetrating the cavity wall of the flow guiding cavity 2 and one side of the device body 1.

[0036] Specifically, the guide cavity 2 has a non-removable conical structure, allowing material to directly reach the surface of the filter screen 4 through the inlet 10, while the bottom of the guide cavity 2 completely covers the surface of the filter screen 4. The top of the annular pipe 3 can be welded to the inner wall of the guide cavity 2, providing installation conditions for the annular pipe 3 inside the guide cavity 2. It is connected to the annular pipe 30 through the guide cavity 2, supplying high-pressure water to the rotating nozzle 31. The other end of the high-pressure water pipe 30 is connected to a high-pressure water tank, which is omitted here as it is existing technology and does not affect the normal implementation of this device. Through high-pressure water rinsing and the rotating nozzle 31, several rotating nozzles 31 cover the surface of the filter screen 4 during rinsing, and the height of the rotating nozzles 31 can be set according to actual conditions.

[0037] Example 3

[0038] This embodiment 2 provides a filter screen 4 that is easy to assemble and disassemble. The inner wall of the device body 1 is symmetrically provided with mounting plates 13 having grooves, and the two ends of the filter screen 4 are provided with insert plates 40 located in the grooves. By setting the mounting plates 13 and insert plates 40, the filter screen 4 can be assembled and disassembled by pushing and pulling the insert plates 40 in the grooves of the mounting plates 13. At the same time, the inner diameter of the first cavity 60 is larger than the spacing of the mounting plates 13, where the spacing of the mounting plates 13 is the distance between two mounting plates 13. Thus, under vacuum conditions, the material can directly enter the second cavity 61 through the filter screen 4, avoiding the adhesion of the material to the inner wall of the first cavity 60. The second cavity 61 plays a guiding role.

[0039] The working principle of this utility model is as follows: The rare earth carbonate precipitate enters the surface of the filter screen 4 through the feed inlet 10 and the guide cavity 2. The vacuum pump 5 is turned on, and the vacuum pump 5 creates a negative pressure state in the first cavity 60 through the annular pipe 50 and the adsorption port 51, thereby drawing the material on the surface of the filter screen 4 through the aperture into the second cavity for collection, and finally discharging it from the discharge port 12. When the filter screen 4 becomes clogged, the filtered material is first collected through the discharge port 12, and then the discharge port 12 is closed. High-pressure water is then used to perform high-pressure rinsing on the filter screen 4 through the high-pressure water pipe 30, the annular pipe 3, and the rotating nozzle 31 to clean the viscous impurities on the surface and in the aperture of the filter screen 4, and discharged through the waste outlet 11 of the second cavity 61. After cleaning, the high-pressure rinsing water can rinse the first cavity 60 and the second cavity 61 through the filter screen 4 without affecting the next filtration of the material.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A high-efficiency anti-clogging filter device for rare earth compound precipitation filtration, characterized in that, The device body (1) includes a feed inlet (10) at the top. The device body (1) is divided into a guide cavity (2) coaxial with the feed inlet (10), a collection cavity (6), and a detachable filter screen (4) located between the two. The guide cavity (2) is provided with an annular pipe (3) for high-pressure water delivery and a rotating nozzle (31). The cavity wall of the collection cavity (6) is provided with several suction ports (51) for vacuuming. The bottom of the collection cavity (6) is provided with a discharge port (12) and a waste discharge port (11) in parallel.

2. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 1, characterized in that, The collection chamber (6) includes a first chamber (60) at the top and a second chamber (61) at the bottom. The adsorption port (51) penetrates the wall of the first chamber (60) and is flush with the wall.

3. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 2, characterized in that, The end of the adsorption port (51) away from the first cavity (60) is connected to the second annular tube (50), and the bottom of the second annular tube (50) is provided with a pipeline connected to the vacuum pump (5).

4. The high-efficiency anti-clogging filter device for rare earth compound precipitation filtration according to claim 2, characterized in that, The inlet end of the adsorption port (51) is funnel-shaped and equipped with a screen (52), the aperture of the screen (52) being smaller than that of the filter screen (4).

5. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 3, characterized in that, The side of the annular tube (50) is provided with several fixing rods (53) that are connected to the inner wall of the device body (1).

6. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 3, characterized in that, The first cavity (60) is a constant diameter cavity, and the second cavity (61) is a variable diameter cavity, with the bottom inner diameter of the variable diameter cavity being smaller than the top inner diameter.

7. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 3, characterized in that, The flow guide cavity (2) has a conical structure, and the top of the annular tube (3) is fixedly connected to the inner wall of the flow guide cavity (2).

8. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 7, characterized in that, A high-pressure water pipe (30) is provided on the side of the annular pipe (3) that penetrates the cavity wall of the guide cavity (2) and one side of the device body (1).

9. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 7, characterized in that, The inner wall of the device body (1) is symmetrically provided with mounting plates (13) having grooves, and the two ends of the filter screen (4) are provided with insert plates (40) located in the grooves.

10. The high-efficiency anti-blocking filter device for the precipitation filtration of rare earth compounds according to claim 9, characterized in that, The inner diameter of the first cavity (60) is greater than the spacing of the assembly plate (13).

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