A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth minerals using jet ionization

Abstract

This invention discloses a novel method for balanced infiltration of ion-adsorption rare earth minerals using radially grooved jet injection. The method includes constructing a central hole within the ore body, constructing horizontal grooves, and numerically controlled pressure regulation. The central hole comprises multiple injection holes of varying heights penetrating the ion-adsorption rare earth ore body. The horizontal grooves are constructed using a jet-grooving structure for creating horizontal grooves and discharging slurry. The jet-grooving structure includes a radial jet nozzle, a high-pressure pump, a high-pressure hose, a slag discharge hose, and a valve. Two sets of high-pressure pumps are provided. The numerically controlled pressure regulation includes a valve, an injection hose, and a connecting pipe. This invention uses a longitudinal injection master hole as the central hole and employs small-sized radial jet nozzles to construct a multi-layered, three-dimensional, horizontally circular grooved, three-dimensional injection guiding structure within the ore-bearing layer. This forms a large-scale, balanced, three-dimensional leaching space, significantly reducing the amount of injection holes required in the topsoil layer and lowering the risk of topsoil pollution and landslides induced by the large-scale intrusion of leaching solution into the topsoil layer during injection.

Description

Technical Field

[0001] This invention relates to the field of rare earth mining technology, specifically a novel method for balanced infiltration of ion-type rare earth minerals by radial grooving injection. Background Technology

[0002] Ion-adsorption rare earth deposits are a unique type of mineral deposit found in southern my country. Their formation is related to local geological features and climate conditions, making them a rare and valuable mineral in my country. The mainstream mining method for ion-adsorption rare earth deposits is in-situ leaching. This method utilizes a leaching agent to undergo a chemical reaction within the ore body, displacing rare earth cations and recovering them. Ammonium bicarbonate is used as a precipitant to concentrate and precipitate the rare earth mother liquor entering the collection pool. Applying in-situ leaching to recover this ore can protect the surface environment and reduce mining costs, but this technology still faces several problems in its widespread adoption. These problems are mainly reflected in two aspects of mining. First, the resource recovery rate of in-situ leaching is low. Statistics show that the recovery rate of ion-adsorption rare earth deposits in southern China using in-situ leaching is generally below 60%. This is partly due to bottom fissures, preventing complete recovery of the mother liquor; and partly because existing injection methods cannot ensure sufficient contact between the ore body and the leaching solution, resulting in leaching blind zones. Second, dense drilling and injection can lead to topsoil pollution and landslides. The direct cause is that the leaching solution cannot flow evenly over a large area within the ore body, and increasing the injection intensity leads to the leaching solution intruding into the topsoil layer. Therefore, the technical challenges arising from in-situ leaching of ion-adsorption rare earth minerals are closely related to the inability of the leaching solution to flow evenly over a large area within the ore-bearing layer. Thus, inventing a new in-situ leaching injection process for ion-adsorption rare earth minerals to ensure even flow of the leaching solution over a large area within the ore body, thereby improving recovery rates, shortening the leaching cycle, and simultaneously reducing the amount of engineering work and pollution to the topsoil layer, is a pressing technical problem that needs to be solved.

[0003] The existing leaching injection methods have the following drawbacks:

[0004] 1. In the patent document CN114892030B, the main consideration is how to improve the stability of the overall structure. However, it does not take into account the problem that in the existing leaching injection method, the radius of a single injection hole is limited, resulting in a small area and leaching range where the leaching agent in the hole wets the ore body, and a low utilization rate of the leaching agent and poor leaching effect.

[0005] 2. In the patent document CN110607440B, the main consideration is how to improve the mining efficiency of rare earth mines. However, it does not take into account the fact that the contact time between the leaching agent and the ore body is short and the contact area is small. Furthermore, the large number of holes can easily induce landslides and serious damage to the surface soil.

[0006] 3. In the patent document CN111944996B, the main consideration is how to improve the leaching solution recovery rate, but it does not take into account that the traditional in-situ leaching injection process requires manpower, raw materials and time, and the rare earth leaching rate is low, which affects the economic benefits of the mine. Summary of the Invention

[0007] The purpose of this invention is to provide a novel method for radial groove injection and balanced infiltration of ion-type rare earth minerals to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a novel method for balanced infiltration of ion-adsorption rare earth ore by radial grooving injection, comprising an ore body, a central hole, a horizontal groove, and numerically controlled pressure regulation. The central hole comprises multiple injection holes of different heights penetrating the ion-adsorption rare earth ore body. The horizontal groove is constructed using a jet grooving structure for constructing the horizontal groove, conveying high-pressure water, and discharging slurry. The jet grooving structure comprises a radial jet nozzle, a high-pressure pump, a high-pressure hose, a slag discharge hose, and a valve. Two sets of high-pressure pumps are provided, one set of which has a high-pressure hose and a slag discharge hose installed at its output end. The high-pressure hose is connected to the radial jet nozzle. One end of the slag discharge hose is connected to a valve, and one end of the valve is threadedly connected to a connecting pipe, which extends into the injection master hole.

[0009] The numerical control pressure regulating device includes valve two, injection hose and connecting pipe. Another set of high pressure pump output end is equipped with injection hose. One end of injection hose is connected to branch pipe through tee. Valve two is installed at the tail end of branch pipe. Connecting pipe is installed at one end of valve two. Interception and liquid collection project is set up in the non-ore area at the bottom of the ore body.

[0010] Preferably, the high-pressure pump set, valve one and valve two are connected to the CNC system and a CNC program is set. The CNC program is used to adjust the jet pressure, slag discharge flow rate and injection intensity at different times.

[0011] The preferred method for equal infiltration of the injected solution follows these steps:

[0012] S1. Drill multiple longitudinal injection master holes vertically downwards directly above ore body 1, with the diameter of the longitudinal injection master holes being 100-250mm.

[0013] S2. Using the single longitudinal injection master hole set in S1 as the central hole, multiple three-dimensional horizontal circular slots are constructed in the ore body using radial jet nozzles.

[0014] S3. When the radial jet nozzle moves in a groove at different heights in the longitudinal injection orifice, a negative pressure is generated by a high-pressure pump, and the ore-containing mud in the longitudinal injection orifice and the three-dimensional horizontal circular groove is extracted by a slag discharge hose.

[0015] S4. Adjust the radius, height and number of three-dimensional horizontal circular slots according to the different structures of the ore body until the bottom layer of three-dimensional horizontal circular slots in the ore body is completed, and finally remove the radial jet nozzles.

[0016] S5. After withdrawing the radial jet nozzle, use tees and branch pipes to connect the same number of connecting pipes according to the number of longitudinal injection master holes, and inject leaching agent into the longitudinal injection master holes through the connecting pipes.

[0017] S6. Use interception and liquid collection engineering to collect rare earth leachate that seeps down through the longitudinal injection main hole and the three-dimensional horizontal circular groove;

[0018] S7. Then, water is injected into all the longitudinal injection master holes that have completed one leaching agent flow through the connecting pipe. The water passes through all the three-dimensional horizontal circular slots and longitudinal injection master holes in sequence to complete the water injection process. After the rinsing is completed, the water flows into the interception and collection project below.

[0019] Preferably, in S2, the three-dimensional horizontal circular grooves are perpendicular to the longitudinal injection master hole, and multiple three-dimensional horizontal circular grooves are distributed in multiple longitudinal layers in the height direction of the ore body;

[0020] The three-dimensional horizontal circular grooves constructed on different longitudinal injection master holes are staggered, and the vertical distance between adjacent three-dimensional horizontal circular grooves constructed on the same longitudinal injection master hole is less than 10 meters.

[0021] Preferably, the radius of the three-dimensional horizontal circular groove is 500-5000 mm and the height is 20-80 mm.

[0022] Preferably, the second valve adjusts the injection rate according to the concentration of the collected rare earth leachate, and changes the injection pressure according to the required injection rate via a numerical control program.

[0023] Preferably, in S3, after the radial jet nozzle has constructed the first three-dimensional horizontal circular slot, the slag discharge hose is sent into the longitudinal injection master hole, one of the high-pressure pumps is started, and the generated ore-containing mud is extracted through the slag discharge hose until no more mud is generated. Then, the radial jet nozzle continues to construct the next three-dimensional horizontal circular slot downwards.

[0024] Preferably, in S4, the high-pressure water jet generated by the radial jet nozzle moving in the height direction of the longitudinal injection orifice cuts out a three-dimensional horizontal circular groove in the vertical direction of the longitudinal injection orifice, and the area and height of the three-dimensional horizontal circular groove are adjusted by controlling the spray radius of the radial jet nozzle.

[0025] Preferably, in S5, after connecting an appropriate number of connecting pipes, the connecting pipes are placed into the longitudinal injection master hole, so that each longitudinal injection master hole is filled with a connecting pipe. Then, another set of high-pressure pumps is started, so that the leaching agent can be delivered to valve two through the injection hose and sent into the longitudinal injection master hole, so that the leaching agent continuously seeps into the interior and around the three-dimensional horizontal circular groove.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention utilizes a radial jet nozzle to create a three-dimensional circular groove, enabling the leaching agent and water to evenly wet the ore body, significantly increasing the reaction area between the leaching agent and the ore, thereby increasing the rare earth recovery rate. By controlling the groove radius, the number of holes required is greatly reduced, avoiding pollution and geological hazards caused by numerous injection holes. Evenly wetting the ore body over a large area effectively improves mine production efficiency and shortens the production cycle.

[0028] 2. This invention allows for remote control of pressurized injection, enabling adjustment of injection pressure and volume to optimize project duration. The injection rate is adjusted based on the leaching rate to enhance the reaction efficiency between the leaching agent and the ore body.

[0029] 3. Under the same conditions of manpower and material resources, the present invention reduces the number of holes to increase the leaching rate, reduces resource waste, increases labor productivity, and lowers production costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating the construction of the present invention;

[0031] Figure 2 This is a schematic diagram comparing the leaching range of the present invention with that of traditional in-situ leaching injection;

[0032] Figure 3 This is a schematic diagram of in-situ leaching and injection of minerals into a mountain during the operation of this invention.

[0033] Figure 4 A schematic diagram illustrating the construction of a three-dimensional horizontal circular groove for this invention;

[0034] Figure 5 This is a partial schematic diagram illustrating the working principle of the radial jet nozzle of the present invention.

[0035] In the diagram: 1. Ore body; 2. Longitudinal injection main borehole; 3. Three-dimensional horizontal circular groove; 4. Radial jet nozzle; 5. High-pressure pump; 6. Slag discharge hose; 7. Valve 1; 8. Interception and liquid collection project; 9. Valve 2; 10. Injection hose; 11. Connecting pipe; 12. High-pressure hose. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Example 1

[0039] Please see Figure 4 This invention provides an embodiment of a novel method for balanced infiltration of ion-adsorption rare earth ore using radial grooving jet injection. The method includes an ore body 1, a central hole, a horizontal groove, and numerically controlled pressure regulation. The central hole comprises multiple injection holes of varying heights inserted within the ion-adsorption rare earth ore body 1. The horizontal groove is constructed using a jet grooving structure for constructing the horizontal groove, conveying high-pressure water, and discharging slurry. The jet grooving structure includes a radial jet nozzle 4, a high-pressure pump 5, a high-pressure hose 12, a slag discharge hose 6, and a valve 7. Two sets of high-pressure pumps 5 are provided. One set of high-pressure pumps 5 has a high-pressure hose 12 and a slag discharge hose 6 installed at its output end. One end of the high-pressure hose is connected to the radial jet nozzle 4. One end of the slag discharge hose 6 is connected to the valve 7. The end is threaded with a connecting pipe that extends into the injection master hole. The CNC pressure regulating system includes a high-pressure pump, valve 2 9, injection hose 10, and connecting pipe 11. Another set of high-pressure pump 5 has an injection hose 10 installed at its output end. One end of the injection hose 10 is connected to a branch pipe via a tee. Valve 2 9 is installed at the end of the branch pipe. Connecting pipe 11 is installed at one end of valve 2 9. A interception and liquid collection project 8 is set up in the non-ore area at the bottom of the ore body 1. The high-pressure pump set, valve 1 7, and valve 2 9 are connected to the CNC system and a CNC program is set up. The CNC program is used to adjust the jet pressure, slag discharge flow rate, and injection intensity at different times. Valve 2 9 adjusts the injection rate according to the concentration of the collected rare earth leachate. The CNC program is used to control the pressure according to the required injection rate.

[0040] Furthermore, the high-pressure pump 5 is equipped with two sets. One set is connected to the high-pressure hose 12 and the slag discharge hose 6, and is used to supply high-pressure water to the radial jet nozzle 4 and extract the ore-containing mud in the longitudinal injection master hole 2. The other set of high-pressure pump 5 is connected to the injection hose 10 and is connected to multiple sets of connecting pipes 11 through tees and branch pipes, and is used to inject water and leaching agent into the longitudinal injection master hole 2. The valves 7 and 9 connected to the upper end of the injection port of the high-pressure pump set, the slag discharge hose 6 and the injection hose 10 are uniformly connected to the CNC system and uniformly controlled by the pre-set CNC program. This allows for the adjustment of jet pressure, slag discharge flow rate and injection intensity at different times, as well as the different injection flow rates of a single longitudinal injection master hole 2 according to the different structures of the ore body 1. By inputting data into the CNC program, the most suitable system parameters can be selected according to the different structures of the ore body 1, thereby saving manpower and material resources to a certain extent.

[0041] Example 2

[0042] Please see Figure 1 and Figure 3 The present invention provides an embodiment of a novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth minerals using jet infiltration. The steps of the injection and balanced infiltration method are as follows:

[0043] S1. Drill multiple longitudinal injection master holes 2 vertically downwards directly above the ore body 1, with the diameter of the longitudinal injection master holes 2 being 100-250mm.

[0044] S2. Using the single longitudinal injection master hole 2 set in S1 as the center hole, multiple three-dimensional horizontal circular slots 3 are constructed in the ore body 1 using radial jet nozzles 4.

[0045] S3. When the radial jet nozzle 4 moves in a groove at different heights in the longitudinal injection main hole 2, the slag discharge hose 6 is used to extract the mineral-containing mud from the longitudinal injection main hole 2 and the three-dimensional horizontal circular groove 3.

[0046] S4. Adjust the radius, height and number of three-dimensional horizontal circular slots 3 according to the different structures of ore body 1 until the bottom layer of three-dimensional horizontal circular slots 3 in ore body 1 is constructed, and finally remove the radial jet nozzle 4.

[0047] S5. After withdrawing the radial jet nozzle 4, use tees and branch pipes to connect the same number of connecting pipes 11 according to the number of longitudinal injection master holes 2, and inject leaching agent into the longitudinal injection master holes 2 through the connecting pipes 11.

[0048] S6. Use interception and liquid collection engineering 8 to collect rare earth leachate that seeps down through the longitudinal injection mother hole 2 and the three-dimensional horizontal circular groove 3.

[0049] S7. Then, water is injected into all the longitudinal injection master holes 2 that have completed one leaching agent flow through the connecting pipe 11. The water passes through all the three-dimensional horizontal circular grooves 3 and the longitudinal injection master holes 2 in sequence to complete the water injection process. After the rinsing is completed, the water flows into the interception and collection project 8 below.

[0050] In S2, the three-dimensional horizontal circular groove 3 is perpendicular to the longitudinal injection master hole 2. Multiple three-dimensional horizontal circular grooves 3 are distributed in multiple layers longitudinally in the height direction of the ore body 1. The three-dimensional horizontal circular grooves 3 constructed on different longitudinal injection master holes 2 are staggered. The vertical distance between adjacent three-dimensional horizontal circular grooves 3 constructed on the same longitudinal injection master hole 2 is less than 10 meters. The radius of the three-dimensional horizontal circular groove 3 is 500-5000 mm and the height is 20-80 mm.

[0051] Furthermore, multiple vertical injection master holes 2 of different heights are drilled vertically downwards directly above the ion-adsorption rare earth ore body 1. Compared with the dense drilling of the traditional single-hole leaching method, this drilling method can increase the spacing between adjacent vertical injection master holes 2, thereby reducing the number of holes and thus reducing the degree of damage to the stability of the topsoil layer. Then, with a single vertical injection master hole 2 as the central hole, a radial jet nozzle 4 moves in the height direction of the vertical injection master hole 2. The high-pressure water jet generated by it can cut a three-dimensional horizontal circular groove 3 in the vertical direction of the vertical injection master hole 2. During the cutting process, according to the different structures of the ion-adsorption ore body, the spray range and pressure of the radial jet nozzle 4 are adjusted by valve 7 to adjust the radius and height of the three-dimensional horizontal circular groove 3 in order to produce the most reasonable leaching effect. Then, using the negative pressure formed by one of the high-pressure pumps 5, the ore-containing mud in the vertical injection master hole 2 is extracted by the slag discharge hose 6.

[0052] While the radial jet nozzle 4 is cutting the groove, a slurry pumping operation is performed simultaneously. The water level in the hole is controlled by adjusting the slurry discharge flow rate until the bottom layer of the three-dimensional horizontal circular groove 3 is completed. Finally, the radial jet nozzle 4 is withdrawn, and water continues to be injected into the longitudinal injection mother hole 2 to facilitate testing of the liquid seepage effect and ensure the full reaction of the leaching agent. Then, the number of connecting pipes 11 is assembled according to the number of longitudinal injection mother holes 2, and the connecting pipes 11 are inserted into the longitudinal injection mother holes 2. Another set of high-pressure pumps 5 is started, and the leaching agent is injected into the longitudinal injection mother hole 2 through the connecting pipes 11. The rare earth leaching liquid that seeps down through the longitudinal injection mother hole 2 and the three-dimensional horizontal circular groove 3 is collected by the intercepting and collecting project 8. Then, the leaching agent is injected into the longitudinal injection mother hole 2 after one leaching agent seepage is completed through the connecting pipes 11. Water is injected into the liquid master hole 2. The water flows through the injection hose 10 and then through the connecting pipe 11, passing sequentially through the longitudinal injection master hole 2 and each three-dimensional horizontal circular groove 3. After the water injection process is completed, the solution flows uniformly to the interception and collection project 8 below. Similarly, according to the process of leaching ore, the input pressure is changed according to the obtained solution concentration, and the water injection rate is adjusted to make it as efficient as possible to avoid affecting the reaction effect of the leaching agent with the ore body 1 in the next step. Finally, the obtained rare earth leachate and the rinsing water are purified and enriched, and then processed to obtain the rare earth primary product. In addition, this injection method can significantly reduce the amount of injection holes to be constructed in the topsoil layer, reduce the risk of topsoil pollution and landslides induced by the large intrusion of leaching solution into the topsoil layer during the injection process, and realize the economical, environmentally friendly and efficient mining of ion-adsorption rare earth mines.

[0053] Example 3

[0054] Please see Figure 5 One embodiment of the present invention is a novel method for balanced infiltration of ion-type rare earth ore by radial grooving injection. In step S3, during the process of constructing a three-dimensional horizontal circular groove 3 by the radial jet nozzle 4, the slag discharge hose 6 is sent into the longitudinal injection master hole 2, and one set of high-pressure pumps 5 is started to extract the generated ore-containing mud through the slag discharge hose 6. The water level in the hole is controlled by adjusting the slag discharge flow rate, and the radial jet nozzle 4 continues to construct the next three-dimensional horizontal circular groove 3 downward.

[0055] In S4, the high-pressure water jet generated by the radial jet nozzle 4 moving in the height direction of the longitudinal injection orifice 2 cuts out a three-dimensional horizontal circular groove 3 in the vertical direction of the longitudinal injection orifice 2, and the area and height of the three-dimensional horizontal circular groove 3 are adjusted by controlling the spray radius of the radial jet nozzle 4.

[0056] Furthermore, taking a single longitudinal injection mother hole 2 as the central hole, a radial jet nozzle 4 moves along the height direction of the mother hole, and the high-pressure water jet generated by it cuts out a three-dimensional horizontal circular groove 3 in the vertical direction of the longitudinal injection mother hole 2. According to the different structures of the ion-type ore body 1, the radius, height and number of the three-dimensional horizontal circular groove 3 are appropriately adjusted to produce the most reasonable leaching effect, thereby realizing the large-scale lateral flow of the leaching solution, expanding the leaching range of a single hole, and the longitudinal multi-layer radial grooving can significantly improve the contact between the leaching solution and the ore body 1, and increase the leaching rate. At the same time, under this volume injection structure, the leaching solution can be evenly diffused in the ore layer, effectively avoiding leaching blind spots and improving the recovery rate.

[0057] When the radial jet nozzle 4 operates in the height direction of the longitudinal injection orifice 2, the high-pressure water generated by the radial jet nozzle fully mixes the waste residue with water to form mud. The negative pressure generated by the high-pressure pump 5 is used to extract the ore-containing mud through the slag discharge hose 6. As the radial jet nozzle 4 moves downward, the slurry extraction operation is carried out simultaneously with each layer of three-dimensional horizontal circular groove 3 constructed until the bottom layer of three-dimensional horizontal circular groove 3 is completed. Finally, the radial jet nozzle 4 is withdrawn, and a water rinsing operation is performed to test the liquid seepage effect and ensure the full reaction of the leaching agent.

[0058] Example 4

[0059] Please see Figure 2 One embodiment of the present invention is a novel method for balanced infiltration of ion-type rare earth ore jet radial groove injection. In step S5, after connecting an appropriate number of connecting pipes 11, the connecting pipes 11 are placed into the longitudinal injection master hole 2, so that each longitudinal injection master hole 2 is filled with a connecting pipe 11. Then, another set of high-pressure pumps 5 is started, so that the leaching agent can be delivered to the valve 2 9 through the injection hose 10 and sent into the longitudinal injection master hole 2, so that the leaching agent continuously seeps into the interior and surrounding area of ​​the three-dimensional horizontal circular groove 3.

[0060] Furthermore, after withdrawing the radial jet nozzle 4, select an appropriate number of tees according to the number of longitudinal injection master holes 2 opened, and connect the corresponding number of connecting pipes 11 through branch pipes. Then, insert the connecting pipes 11 into the longitudinal injection master holes 2 and start the high-pressure pump 5 to inject leaching agent into the longitudinal injection master holes 2 through the connecting pipes 11. At this time, the leaching agent entering the longitudinal injection master holes 2 continuously seeps into the interior and surrounding area of ​​the three-dimensional horizontal circular groove 3. While injecting leaching agent into the longitudinal injection master holes 2, a interception and liquid collection project 8 is set up in the non-ore area at the bottom of the ore body 1 to collect the rare earth leachate that seeps down through the longitudinal injection master holes 2 and the three-dimensional horizontal circular groove 3. Adjust the injection rate according to the concentration of the collected rare earth leachate. Change the numerical control program according to the required injection rate to control the pressure, and finally form a closed-loop control system of input pressure-injection rate-leachate concentration to realize the economical, environmentally friendly and efficient mining of the entire ion-adsorption rare earth ore in-situ leaching injection process.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel method for radially grooved injection and balanced infiltration of ion-adsorption rare earth minerals, characterized in that: The system includes an ore body (1), a central hole, a horizontal groove, and a numerically controlled pressure regulating device. The central hole includes multiple injection holes of different heights inserted into the ion-adsorption rare earth ore body (1). The horizontal groove includes a jet cutting structure for constructing the horizontal groove and discharging the mud formed during the cutting process. The jet cutting structure includes a radial jet nozzle (4), a high-pressure pump (5), a high-pressure hose (12), a slag discharge hose (6), and a valve (7). The high-pressure pump (5) is provided in two sets. One set of the high-pressure pump (5) has a high-pressure hose (12) and a slag discharge hose (6) installed at the output end. The high-pressure hose (12) has a radial jet nozzle (4) installed at the bottom end. One end of the slag discharge hose (6) is connected to a valve (7). One end of the valve (7) is threadedly connected to a connecting pipe. The connecting pipe extends into the longitudinal injection master hole (2). The numerical control pressure regulating includes valve two (9), injection hose (10) and connecting pipe (11). Another set of high pressure pumps (5) has an injection hose (10) installed at the output end. One end of the injection hose (10) is connected to a branch pipe through a tee. Valve two (9) is installed at the tail end of the branch pipe. Connecting pipe (11) is installed at one end of valve two (9). A flow interception and liquid collection project (8) is set up in the non-ore area at the bottom of the ore body (1).

2. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 1, characterized in that: The high-pressure pump (5), valve one (7) and valve two (9) are connected to the CNC system and a CNC program is set. The CNC program is used to adjust the horizontal groove cutting and slag discharge rate and control the leaching solution injection intensity.

3. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 2, characterized in that, The steps for the fluid injection and equalization infiltration method are as follows: S1. Drill multiple longitudinal injection master holes (2) arranged vertically downwards directly above the ore body (1), and the diameter of the longitudinal injection master holes (2) is 100-250mm. S2. Using the single longitudinal injection mother hole (2) set in S1 as the center hole, multiple three-dimensional horizontal circular grooves (3) are constructed in the ore body (1) using radial jet nozzles (4); S3. When the radial jet nozzle (4) moves in the height direction of the longitudinal injection mother hole (2), the high pressure pump (5) is started, and the slag discharge hose (6) is used to extract the ore-containing mud in the longitudinal injection mother hole (2) and the three-dimensional horizontal circular groove (3); S4. Adjust the radius, height and number of three-dimensional horizontal circular slots (3) according to the different structures of the ore body (1) until the bottom layer of the three-dimensional horizontal circular slots (3) in the ore body (1) is completed, and finally remove the radial jet nozzles (4). S5. After withdrawing the radial jet nozzle (4), use tees and branch pipes to connect the same number of connecting pipes (11) according to the number of longitudinal injection master holes (2), and inject leaching agent into the longitudinal injection master holes (2) through the connecting pipes (11). S6. Use interception and liquid collection engineering (8) to collect rare earth leachate that seeps down through the longitudinal injection mother hole (2) and the three-dimensional horizontal circular groove (3); S7. Then, water is injected into all the longitudinal injection master holes (2) after the leaching agent has been seeped once through the connecting pipe (11). The water passes through all the three-dimensional horizontal circular grooves (3) and the longitudinal injection master holes (2) in sequence to complete the water injection process. The water after rinsing flows into the interception and collection project (8) below.

4. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 3, characterized in that: In S2, the three-dimensional horizontal circular groove (3) is perpendicular to the longitudinal injection master hole (2), and multiple three-dimensional horizontal circular grooves (3) are distributed in multiple layers longitudinally in the height direction of the ore body (1); The three-dimensional horizontal circular grooves (3) constructed on different longitudinal injection master holes (2) are staggered, and the vertical distance between the upper and lower adjacent three-dimensional horizontal circular grooves (3) constructed on the same longitudinal injection master hole (2) is less than 10 meters.

5. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 3, characterized in that: The radius of the three-dimensional horizontal circular groove (3) is 500-5000mm and the height is 20-80mm.

6. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 2, characterized in that: The valve 2 (9) adjusts the injection rate according to the concentration of the collected rare earth leachate, and changes the CNC program to control the pressure according to the required injection rate.

7. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 3, characterized in that: In S3, during the process of constructing a horizontal circular groove (3) by the radial jet nozzle (4), the slag discharge hose (6) is simultaneously sent into the longitudinal injection hole (2). Using the negative pressure formed by the high-pressure pump (5), the ore-containing mud generated during the jet cutting process is extracted through the slag discharge hose (6). The slag discharge rate is controlled by numerical control pressure adjustment. The radial jet nozzle (4) constructs a multi-layer three-dimensional horizontal circular groove (3) by moving longitudinally downward.

8. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 3, characterized in that: In S4, the high-pressure water jet generated by the radial jet nozzle (4) moving in the height direction of the longitudinal injection orifice (2) cuts out a three-dimensional horizontal circular groove (3) in the vertical direction of the longitudinal injection orifice (2), and the area and height of the three-dimensional horizontal circular groove (3) are adjusted by controlling the pump pressure and the spray radius of the radial jet nozzle (4).

9. A novel method for radial groove injection and balanced infiltration of ion-adsorption rare earth ore according to claim 3, characterized in that: In S5, after connecting a suitable number of connecting pipes (11), the connecting pipes (11) are placed into the longitudinal injection master hole (2), so that each longitudinal injection master hole (2) is filled with a connecting pipe (11). Then, another set of high-pressure pumps (5) is started, so that the leaching agent can be delivered to valve two (9) through the injection hose (10) and sent into the longitudinal injection master hole (2), so that the leaching agent continuously seeps into the interior and around the three-dimensional horizontal circular groove (3).

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