Large ion type rare earth ore in-situ leaching indoor test device

Abstract

The utility model discloses a large ion type rare earth ore in-situ leaching indoor test device which comprises a base, a bedrock simulation layer, a wall enclosure and an earth surface simulation layer, the base is in a disc shape, the bedrock simulation layer is a semi-ellipsoid shell arranged on the base in an upside-down mode, the wall enclosure is in a cylinder shape, the bottom of the wall enclosure is arranged outside the bedrock simulation layer in a covering mode, and the earth surface simulation layer is arranged on the ground surface simulation layer. The base rock simulation layer is a semi-ellipsoid shell which is arranged at the top of the wall enclosure in an upside-down manner, the base rock simulation layer is provided with a crack hole, the ground surface simulation layer is provided with an ore inlet and a circular liquid injection hole, and the base, the base rock simulation layer, the wall enclosure and the ground surface simulation layer are integrally formed with respective bearing platforms. The structure of the earth surface simulation layer and the structure of the bed rock simulate the arc-shaped and inclined characteristics of the ore body, the crack holes in the bed rock simulation layer simulate the porous and crack structure of the bed rock simulation layer, and the structure characteristics of the ore body are fully simulated.

Description

Technical Field

[0001] The utility model belongs to the field of in-situ leaching mining, and particularly relates to an indoor test device for in-situ leaching of ionic rare earth ores, which is suitable for large-scale indoor tests simulating the in-situ leaching process of ionic rare earth mines. Background Art

[0002] The in-situ leaching mining method has the advantages of less damage to soil and vegetation, less capital construction investment, short construction period, and low production cost, and is widely used in the mining of ionic rare earth ores, copper ores, and manganese ores. The in-situ leaching mining method is divided into in-situ leaching method, surface heap leaching method, and bacterial chemical mining method.

[0003] Ionic rare earth ores are rich in heavy rare earth elements, which are divided into surface layer (humus layer), weathered layer (including semi-weathered layer) and bedrock (such as Figure 1 shown) according to geological structure. At present, the in-situ leaching method is generally used for mining. The in-situ leaching method is a mining method that injects a leaching agent into an ionic rare earth ore body, that is, the weathered layer, through an injection hole according to the chemical properties of the ore, and after a chemical reaction occurs between the ore body and the leaching agent, the useful components in the ore body are leached and recovered.

[0004] In the existing indoor test devices for in-situ leaching of ionic rare earth ores, there is a lack of a large test model device that can combine the structural characteristics of ionic rare earth ore bodies and the in-situ leaching mining process. The traditional indoor test devices for in-situ leaching of ionic rare earth ores are small in size, single in structure, and do not consider that the bedrock contains a large number of pore and fracture structures. The simulation of the in-situ leaching method for ionic rare earth ores is relatively one-sided, and the test results are not widely persuasive, which has certain limitations for the research on the in-situ leaching mining process of ionic rare earth ores. Content of the Utility Model

[0005] The utility model aims to overcome the defects of the existing device and provides a large indoor test device for in-situ leaching of ionic rare earth ores.

[0006] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0007] A large indoor test device for in-situ leaching of ionic rare earth ores includes a base, a bedrock simulation layer, a wall enclosure, and a surface simulation layer.

[0008] The base is disc-shaped, the bedrock simulation layer is a semi-ellipsoidal shell inverted on the base, the wall enclosure is cylindrical, the bottom of the wall enclosure covers the outside of the bedrock simulation layer, the surface simulation layer is a semi-ellipsoidal shell inverted on the top of the wall enclosure, the bedrock simulation layer is provided with fracture holes, and the surface simulation layer is provided with a mineral inlet and circular injection holes.

[0009] As described above, a circular base platform is provided at the outer edge of the base, and a plurality of connection holes are provided on the base platform; a circular bedrock platform is provided at the lower edge of the bedrock simulation layer, and a plurality of connection holes are provided on the bedrock platform; a circular first wall enclosure platform is provided at the outer periphery of the bottom of the wall enclosure, and a plurality of connection holes are provided on the first wall enclosure platform; the connecting fasteners pass through the connection holes on the base platform, the bedrock platform, and the first wall enclosure platform, and fix the base platform, the bedrock simulation layer, and the wall enclosure together.

[0010] As described above, a circular second wall enclosure platform is provided at the outer periphery of the top of the wall enclosure, and a plurality of connection holes are provided on the second wall enclosure platform; a circular surface layer platform is provided at the lower outer edge of the surface simulation layer, and a plurality of connection holes are provided on the surface layer platform; the connecting fasteners pass through the connection holes on the second wall enclosure platform and the surface layer platform, and fix the top of the wall enclosure and the surface simulation layer together.

[0011] As described above, a circular liquid collection groove is provided on the top surface of the base, and liquid collection holes communicating with the liquid collection groove are provided on the base.

[0012] As described above, a liquid collection valve is provided on the liquid collection hole.

[0013] As described above, the base and the base platform are integrally connected; the bedrock simulation layer and the bedrock platform are integrally connected; the wall enclosure, the first wall enclosure platform, and the second wall enclosure platform are integrally connected; the surface simulation layer and the surface layer platform are integrally connected.

[0014] The utility model has the following beneficial effects compared with the prior art:

[0015] 1. The device has a simple structure, mostly being cast bodies and stamping formed bodies; the whole is arched, capable of withstanding large loads and having a uniform stress distribution; the load-bearing platforms at each part are connected by fasteners, with a high safety factor;

[0016] 2. The device can simulate the geological structure of ionic rare earth ore bodies and can vividly display the characteristics of the ore body structure; the surface simulation layer and the bedrock simulation layer show the arc-shaped and inclined characteristics of the mountain body; the fracture holes represent the porous and fractured structure of the bedrock simulation layer;

[0017] 3. The surface simulation layer is provided with a feed inlet and a liquid injection hole, and the base contains a liquid collection groove to collect the leaching solution. The bottom of the liquid collection groove contains a liquid collection hole and a liquid collection valve, which can freely control the liquid collection, facilitating the operation of the experimental personnel. Description of the Drawings

[0018] Figure 1 It is a basic geological layer structure diagram of an ionic rare earth ore body;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3(a) is a cross-sectional view of the surface simulation layer, and Figure 3(b) is a top view of the surface simulation layer;

[0021] Figure 4(a) is a cross-sectional view of the wall enclosure, and Figure 4(b) is a top view of the wall enclosure;

[0022] Figure 5(a) is a cross-sectional view of the bedrock simulation layer, and Figure 5(b) is a top view of the bedrock simulation layer;

[0023] Figure 6(a) is a cross-sectional view of the base, and Figure 6(b) is a top view of the base.

[0024] In the figure: 1 - surface simulation layer, 2 - liquid injection hole, 3 - bedrock simulation layer, 4 - fracture hole, 5 - base, 6 - liquid collection groove, 7 - ore inlet, 8 - weathering simulation layer, 9 - wall enclosure, 10 - liquid collection hole, 11 - connecting fastener, 12 - surface bearing platform, 13 - bedrock bearing platform, 14 - liquid collection valve, 15 - connecting hole, 16 - first wall enclosure bearing platform, 17 - second wall enclosure bearing platform, 18 - surface layer, 19 - weathering layer, 20 - bedrock. Specific implementation manner

[0025] For the convenience of those of ordinary skill in the art to understand and implement the present utility model, the present utility model will be further described in detail below in conjunction with the implementation examples. It should be understood that the implementation examples described herein are only used to illustrate and explain the present utility model and are not used to limit the present utility model.

[0026] Example 1: As shown in Figure 2 Figures 2 to 6, a large-scale in-situ leaching indoor test device for ionic rare earth ores includes a base 5, a bedrock simulation layer 3, a wall enclosure 9, and a surface simulation layer 1. The bedrock simulation layer 3, the wall enclosure 9, and the surface simulation layer 1 form a closed cavity structure. The weathering simulation layer 8 (ionic rare earth ore body) is located in the middle of the surface simulation layer 1 and the bedrock simulation layer 3.

[0027] The base 5 is a disc-shaped structure. An annular liquid collection groove 6 is provided on the top surface of the base 5. A liquid collection hole 10 communicating with the liquid collection groove 6 is provided on the base 5. A liquid collection valve 14 is provided on the liquid collection hole 10. An annular base bearing platform is provided near the outer edge of the base (5). Four connecting holes 15 are provided on the base bearing platform.

[0028] The bedrock simulation layer 3 is a semi-ellipsoidal shell placed upside down. 56 circular fracture holes 4 are provided on the arc surface of the bedrock simulation layer 3. A circular bedrock bearing platform 13 is provided on the lower edge of the bedrock simulation layer 3. Four connecting holes 15 are provided on the bedrock bearing platform 13. During installation, the positions of the connecting holes 15 on the bedrock bearing platform 13 correspond one by one to the positions of the connecting holes 15 on the base bearing platform.

[0029] The wall enclosure 9 is cylindrical. A ring-shaped first wall-enclosure bearing platform 16 is provided on the outer periphery of the bottom of the wall enclosure 9. Four connecting holes 15 are provided on the first wall-enclosure bearing platform 16. A ring-shaped second wall-enclosure bearing platform 17 is provided on the outer periphery of the top of the wall enclosure 9. Four connecting holes 15 are provided on the second wall-enclosure bearing platform 17. During installation, the positions of the connecting holes 15 on the first wall-enclosure bearing platform 16 correspond one by one to the positions of the connecting holes 15 on the bedrock bearing platform 13.

[0030] The above indoor test device further includes connecting fasteners 11. During installation, the connecting fasteners 11 pass through the connecting holes 15 on the base bearing platform, the bedrock bearing platform 13, and the first wall-enclosure bearing platform 16, and fix the base bearing platform, the bedrock simulation layer 3, and the wall enclosure 9 together.

[0031] The surface simulation layer 1 is a semi-elliptical spherical shell arranged upside down. An ore inlet 7 and seven circular liquid injection holes 2 are provided on the arc surface of the surface simulation layer 1. A circular surface bearing platform 12 is provided on the outer edge of the lower part of the surface simulation layer 1. Four connecting holes 15 are provided on the surface bearing platform 12. During installation, the positions of the connecting holes 15 on the surface bearing platform 12 correspond one by one to the positions of the connecting holes 15 on the second wall-enclosure bearing platform 17. The connecting fasteners 11 pass through the connecting holes 15 of the surface bearing platform 12 and the second wall-enclosure bearing platform 17, and fix the surface simulation layer 1 and the wall enclosure 9 together.

[0032] The base 5 and the base bearing platform are integrally connected, and the whole is a cast body or a stamping formed body; the bedrock simulation layer 3 and the bedrock bearing platform 13 are integrally connected, and the whole is a cast body or a stamping formed body; the wall enclosure 9, the first wall-enclosure bearing platform 16, and the second wall-enclosure bearing platform 17 are integrally connected, and the whole is a cast body or a stamping formed body; the surface simulation layer 1 and the surface bearing platform are integrally connected, and the whole is a cast body or a stamping formed body. The structure is simple and convenient for installation.

[0033] During the test, the ionic rare earth ore is loaded through the ore inlet 7, and the leaching solution is injected through the liquid injection holes 2. After the test is completed, the collecting liquid valve 14 is opened to collect the leaching solution.

[0034] It should be noted that the embodiments described in the present invention are only examples to illustrate the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An in-situ leaching indoor test device for large-scale ionic rare earth ore, including a base (5), characterized in that, It further includes a bedrock simulation layer (3), a wall enclosure (9), and a ground surface simulation layer (1). The base (5) is disc-shaped. The bedrock simulation layer (3) is a semi-ellipsoidal shell inverted and arranged on the base (5). The wall enclosure (9) is cylindrical. The bottom of the wall enclosure (9) covers the outside of the bedrock simulation layer (3). The ground surface simulation layer (1) is a semi-ellipsoidal shell inverted and arranged on the top of the wall enclosure (9). Fracture holes (4) are arranged on the bedrock simulation layer (3), and an ore inlet (7) and circular liquid injection holes (2) are arranged on the ground surface simulation layer (1).

2. The indoor test device for in-situ leaching of large-scale ionic rare earth ores according to claim 1, characterized in that, An annular base bearing platform is arranged on the outer edge of the base (5), and a plurality of connection holes (15) are arranged on the base bearing platform; a circular bedrock bearing platform (13) is arranged on the lower edge of the bedrock simulation layer (3), and a plurality of connection holes (15) are arranged on the bedrock bearing platform (13); a circular first wall enclosure bearing platform (16) is arranged on the outer periphery of the bottom of the wall enclosure (9), and a plurality of connection holes (15) are arranged on the first wall enclosure bearing platform (16); The connecting fasteners (11) pass through the connection holes (15) on the base bearing platform, the bedrock bearing platform (13), and the first wall enclosure bearing platform (16), and fix the base bearing platform, the bedrock simulation layer (3), and the wall enclosure (9) together.

3. The in-situ leaching indoor test device for large-scale ionic rare earth ore according to claim 2, wherein, An annular second wall enclosure bearing platform (17) is arranged on the outer periphery of the top of the wall enclosure (9), and a plurality of connection holes (15) are arranged on the second wall enclosure bearing platform (17). A circular ground surface bearing platform (12) is arranged on the lower outer edge of the ground surface simulation layer (1), and a plurality of connection holes (15) are arranged on the ground surface bearing platform (12). The connecting fasteners (11) pass through the connection holes (15) on the second wall enclosure bearing platform (17) and the ground surface bearing platform (12), and fix the top of the wall enclosure (9) and the ground surface simulation layer (1) together.

4. An in-situ leaching laboratory test device for large-scale ionic rare earth ores according to claim 1, characterized in that, An annular liquid collecting groove (6) is arranged on the top surface of the base (5), and liquid collecting holes (10) communicating with the liquid collecting groove (6) are arranged on the base (5).

5. A laboratory test device for in-situ leaching of large-scale ionic rare earth ores according to claim 4, characterized in that, A liquid collecting valve (14) is arranged on the liquid collecting hole (10).

6. The in-situ leaching indoor test device for large-scale ionic rare earth ore according to claim 4, characterized in that, The base (5) and the base bearing platform are integrally connected; the bedrock simulation layer (3) and the bedrock bearing platform (13) are integrally connected; the wall enclosure (9), the first wall enclosure bearing platform (16), and the second wall enclosure bearing platform (17) are integrally connected; the ground surface simulation layer (1) and the ground surface bearing platform are integrally connected.

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