Washing device for rare earth carbonate precipitate

Abstract

The washing device comprises a scraper assembly and a spraying assembly, the scraper assembly comprises a transverse plate, a lifting mechanism, a mounting plate and a plurality of scraping strips, the transverse plate is used for being transversely mounted on a washing conveyor, the fixed end of the lifting mechanism is connected with the transverse plate, the movable end of the lifting mechanism is connected with the mounting plate, and the spraying assembly is arranged on the mounting plate. A plurality of connecting parts are arranged on the mounting plate in the transverse direction at equal intervals, and the scraping strips can be detachably connected with the connecting parts; the spraying assembly is installed on the washing conveyor and is suitable for spraying pure water to the rare earth carbonate precipitate on the washing conveyor, and the scraper assembly and the spraying assembly are sequentially arranged in the conveying direction of the washing conveyor; wherein the plurality of scraping strips comprise at least two scraping strips with different thickness specifications. The washing effect of the rare earth carbonate precipitate can be effectively improved, chloride ions are removed, and the product purity is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rare earth material production equipment and relates to a water washing device for rare earth carbonate precipitation. Background Art

[0002] In the process of rare earth ore production and processing, the rare earth elements in the rare earth ore are converted into rare earth carbonate precipitates through multiple processes. Before the rare earth carbonate precipitates are formally formed into products and loaded into the warehouse, the rare earth carbonate precipitates need to be sprayed with pure water from above when they are transported through a water washing conveyor to wash the rare earth carbonate precipitates, and usually they are washed multiple times to remove the impurity ions (mainly chloride ions) contained therein. In existing water washing devices, pure water is usually sprayed directly from above, and the rare earth carbonate precipitates at a deep depth are not in sufficient contact with water, and the effect of impurity removal is limited. Utility Model Content

[0003] The utility model aims to provide a water washing device for rare earth carbonate precipitates, which can effectively improve the water washing effect of rare earth carbonate precipitates, remove chloride ions, and improve product purity.

[0004] The technical solution adopted by the utility model is as follows: a water washing device for rare earth carbonate precipitates, used to be installed on a water washing conveyor for rare earth carbonate precipitates, including a scraper assembly and a spray assembly, the scraper assembly including a transverse plate, a lifting mechanism, a mounting plate and a plurality of scraper strips, the transverse plate is used to be installed horizontally on the water washing conveyor, the fixed end of the lifting mechanism is connected to the transverse plate, the movable end of the lifting mechanism is connected to the mounting plate, and is suitable for driving the mounting plate to move up and down, a plurality of connecting parts are arranged at equal intervals along the upper side of the mounting plate in the horizontal direction, and the plurality of scraper strips can be detachably connected to the connecting parts; the spray assembly is installed on the water washing conveyor and is suitable for spraying pure water to the rare earth carbonate precipitates on the water washing conveyor, the scraper assembly and the spray assembly are arranged in sequence along the conveying direction of the water washing conveyor; wherein, the plurality of scraper strips include at least two scraper strips of different coarseness and fineness.

[0005] Furthermore, the water washing device also includes a linear drive mechanism, which is installed on the water washing conveyor and is used to drive the transverse plate to reciprocate in the transverse direction.

[0006] Furthermore, the linear drive mechanism includes a ball screw drive mechanism.

[0007] Furthermore, the lifting mechanism includes a pneumatic cylinder or a hydraulic cylinder.

[0008] Furthermore, the scraper strip is snap-connected, bolted or threadedly connected to the connecting portion.

[0009] Furthermore, a regulating valve is provided on the water inlet pipeline of the spray assembly.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The water washing device of the utility model comprises a scraper assembly and a spray assembly. The scraper assembly comprises a horizontal plate, a lifting mechanism, a mounting plate and a plurality of scraper strips. When the rare earth carbonate precipitate is transported forward on the water washing conveyor, each scraper strip installed on the mounting plate can draw a groove on the rare earth carbonate precipitate, and the depth of the groove can be adjusted by the lifting mechanism, and the width of the groove can also be adjusted by replacing scraper strips of different thicknesses. In this way, the water washing effect can be achieved by adjusting the width and depth parameters of the groove. After that, the rare earth carbonate precipitate is sprayed by the spray assembly, thereby effectively improving the water washing effect of the rare earth carbonate precipitate, removing chloride ions, and improving the purity of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work, including:

[0013] Figure 1 This is a schematic structural diagram of a water washing device for rare earth carbonate precipitation according to an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Front view of the middle scraper assembly.

[0015] Markings in the figure:

[0016] 10-scraper assembly; 11-horizontal plate; 12-lifting mechanism; 13-mounting plate; 131-connecting part; 14-scraper strip;

[0017] 20-Spray assembly. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0020] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] As described in the background technology, in the process of producing and processing rare earth ores, the rare earth elements in the rare earth ores are converted into the form of rare earth carbonate precipitation through multiple processes. Before the rare earth carbonate precipitation is formally formed into a product warehouse, the rare earth carbonate precipitation is transmitted through a water washing conveyor, and pure water needs to be sprayed from above to wash the rare earth carbonate precipitation, and usually multiple washings are performed to remove the impurity ions (mainly chloride ions) contained therein. In existing water washing devices, pure water is usually sprayed directly from above, and the rare earth carbonate precipitation at a deep depth is not in sufficient contact with water, and the effect of impurity removal is limited.

[0022] Based on this, the inventors created a water washing device for rare earth carbonate precipitation in the present application to solve the above-mentioned technical problems.

[0023] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0024] Example

[0025] See also Figure 1 , Figure 2 A water washing device for rare earth carbonate precipitate is used to be installed on a water washing conveyor for rare earth carbonate precipitate, and includes a scraper assembly 10 and a spray assembly 20. Here, the water washing conveyor can be a belt-type water washing conveyor. Usually, the rare earth carbonate precipitate is spread on the conveyor belt of the belt-type water washing conveyor and has a certain thickness (e.g., 2-6 cm).

[0026] The scraper assembly 10 includes a transverse plate 11, a lifting mechanism 12, a mounting plate 13 and a plurality of scraper strips 14, wherein the transverse plate 11 is used to be installed horizontally on the water washing conveyor. Here, the transverse plate 11 is perpendicular to the transmission direction of the water washing conveyor, and the horizontal direction described below is also perpendicular to the transmission direction of the water washing conveyor. The fixed end of the lifting mechanism 12 is connected to the transverse plate 11, and the movable end of the lifting mechanism 12 is connected to the mounting plate 13, and is suitable for driving the mounting plate 13 to move up and down. For example, the lifting mechanism 12 can be a cylinder or a hydraulic cylinder, but the utility model is not limited thereto. A plurality of connecting parts 131 are arranged at equal intervals along the horizontal direction on the mounting plate 13, and the plurality of scraper strips 14 can be detachably connected to the connecting parts 131. For example, the scraper strip 14 and the connecting part 131 can be connected by snap-fit, bolted or threaded, but the utility model is not limited thereto. The plurality of scraper strips 14 include at least two scraper strips 14 of different thicknesses. Thus, the width of the formed grooves can be adjusted by replacing scraper strips 14 of different thicknesses to meet the needs.

[0027] The spray assembly 20 is installed on the water-washing conveyor and is suitable for spraying pure water to the rare earth carbonate precipitate on the water-washing conveyor. The scraper assembly 10 and the spray assembly 20 are arranged in sequence along the conveying direction of the water-washing conveyor.

[0028] The water washing device of the utility model comprises a scraper assembly 10 and a spray assembly 20. The scraper assembly 10 comprises a horizontal plate 11, a lifting mechanism 12, a mounting plate 13 and a plurality of scraper strips 14. When the rare earth carbonate precipitate is transported forward on the water washing conveyor, each scraper strip 14 mounted on the mounting plate 13 can draw a groove on the rare earth carbonate precipitate, and the depth of the groove can be adjusted by the lifting mechanism 12, and the width of the groove can also be adjusted by replacing the scraper strips 14 with different thicknesses. In this way, the water washing effect can be achieved by adjusting the width and depth parameters of the groove. After that, the rare earth carbonate precipitate is sprayed by the spray assembly 20, thereby effectively improving the water washing effect of the rare earth carbonate precipitate, removing chloride ions, and improving the purity of the product.

[0029] In another embodiment, the water washing device further comprises a linear drive mechanism, which is mounted on the water washing conveyor and is used to drive the transverse plate 11 to reciprocate in the transverse direction. In this arrangement, the linear drive mechanism drives the transverse plate 11 to move in the transverse direction, so that wavy grooves can be formed on the surface of the rare earth carbonate precipitation, so that the coverage area is larger, and the water washing effect is further improved. Preferably, the linear drive mechanism comprises a ball screw drive mechanism.

[0030] In another embodiment, a regulating valve is provided on the water inlet pipe of the spray assembly 20, so that the spray flow of the spray assembly 20 can be adjusted in coordination with the scraper assembly 10, thereby not wasting water resources but ensuring a better washing effect.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water washing device for rare earth carbonate precipitates, used for installation on a water washing conveyor for rare earth carbonate precipitates, characterized in that: It includes a scraper assembly and a spray assembly, the scraper assembly includes a transverse plate, a lifting mechanism, a mounting plate and a plurality of scraper strips, the transverse plate is used to be installed horizontally on the water washing conveyor, the fixed end of the lifting mechanism is connected to the transverse plate, the movable end of the lifting mechanism is connected to the mounting plate, and is suitable for driving the mounting plate to move up and down, a plurality of connecting parts are arranged at equal intervals along the horizontal direction of the mounting plate, and the plurality of scraper strips can be detachably connected to the connecting parts; the spray assembly is installed on the water washing conveyor and is suitable for spraying pure water to the rare earth carbonate precipitate on the water washing conveyor, the scraper assembly and the spray assembly are arranged in sequence along the conveying direction of the water washing conveyor; wherein, the plurality of scraper strips include at least two scraper strips of different coarseness and fineness.

2. A water washing device for rare earth carbonate precipitation according to claim 1, characterized in that: The water washing device also includes a linear drive mechanism, which is installed on the water washing conveyor and is used to drive the transverse plate to reciprocate in the transverse direction.

3. A water washing device for rare earth carbonate precipitation according to claim 2, characterized in that: The linear drive mechanism includes a ball screw drive mechanism.

4. A water washing device for rare earth carbonate precipitation according to claim 1, characterized in that: The lifting mechanism comprises a pneumatic cylinder or a hydraulic cylinder.

5. A water washing device for rare earth carbonate precipitation according to claim 1, characterized in that: The scraper strip is snap-connected, bolted or threadedly connected to the connecting portion.

6. A water washing device for rare earth carbonate precipitation according to claim 1, characterized in that: A regulating valve is arranged on the water inlet pipeline of the spray assembly.

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