In-situ leaching intelligent mining system for ion-type rare earth ore

Abstract

The application discloses an ion type rare earth ore in-situ leaching intelligent mining system, which comprises a liquid injection mechanism, a plurality of second flow meters, a plurality of flow control valves, an acoustic emission assembly and a controller. The liquid injection mechanism comprises a liquid injection main pipe and a plurality of liquid injection branch pipes, one end of the plurality of liquid injection branch pipes is communicated with the liquid injection main pipe, the other end of the plurality of liquid injection branch pipes is respectively arranged in a corresponding liquid injection hole, and the liquid injection branch pipe is provided with the second flow meter and the flow control valve. The acoustic emission assembly comprises a plurality of acoustic emission probes and an acoustic emission device, wherein the plurality of acoustic emission probes are arranged on the mine in a preset arrangement strategy, and the plurality of acoustic emission probes are connected with the acoustic emission device. The controller is connected with the liquid injection mechanism, the second flow meter, the flow control valve and the acoustic emission device. Thus, the leaching liquid can be uniformly distributed in the mine during the ion type rare earth mining process, the accidents such as landslides and collapses caused by preferential flow are avoided, and the life safety of personnel is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ion type rare earth mining, and particularly relates to an ion type rare earth ore in-situ leaching intelligent mining system. BACKGROUND

[0002] The solution mining is a method of injecting leaching liquid into a mine according to the physical and chemical properties of minerals, and converting some useful minerals in the underground ore deposit or surface ore into liquid or gaseous state through chemical action and then recovering the liquid or gaseous state, and the solution mining includes surface heap leaching method, in-situ leaching method and bacterial chemical mining method.

[0003] However, it is inevitable that a high and large slope is formed in the mining engineering, and the use of the solution mining method in the process of ion type rare earth mining is easy to cause the uneven distribution of the leaching liquid in the mine, and the formation of the dominant seepage channel, and the occurrence of the preferential flow, thereby causing the landslide and collapse accidents, and causing the personnel to be injured and the property to be lost. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, one purpose of the present application is to provide an ion type rare earth ore in-situ leaching intelligent mining system, which can make the leaching liquid evenly distributed in the mine in the process of ion type rare earth mining, avoid the occurrence of the landslide and collapse accidents caused by the preferential flow, guarantee the life safety of the personnel, and avoid the loss of the property.

[0006] To achieve the above object, the first aspect of the present application proposes an ion type rare earth ore in-situ leaching intelligent mining system, comprising a liquid injection mechanism, a plurality of second flow meters, a plurality of flow control valves, an acoustic emission assembly and a controller, wherein the liquid injection mechanism is used to inject leaching liquid into the liquid injection hole to mine the ion type rare earth ore, so as to obtain the leaching mother liquor of the ion type rare earth ore; the liquid injection mechanism comprises a liquid injection main pipe and a plurality of liquid injection branch pipes, wherein one end of the plurality of liquid injection branch pipes is in communication with the liquid injection main pipe, the other end of the plurality of liquid injection branch pipes is respectively arranged in the corresponding liquid injection hole, and the second flow meter and the flow control valve are installed on the liquid injection branch pipe; the second flow meter is used to obtain the first flow data of the leaching liquid in the liquid injection branch pipe; the acoustic emission assembly comprises a plurality of acoustic emission probes and an acoustic emission device, wherein the plurality of acoustic emission probes are respectively arranged on the mine in a preset arrangement strategy, and the plurality of acoustic emission probes are respectively connected with the acoustic emission device; the acoustic emission device is used to obtain the expansion data and distribution data of the fissure in the mine in the seepage process through the plurality of acoustic emission probes; the controller is connected with the liquid injection mechanism, the second flow meter, the flow control valve and the acoustic emission device respectively, and the controller is used to control the plurality of flow control valves according to the expansion data, the distribution data and the first flow data.

[0007] The ion type rare earth ore in-situ leaching intelligent mining system of the present application embodiment, the relevant personnel inject leaching liquid into the liquid injection hole through the liquid injection mechanism to mine the ion type rare earth ore, so as to obtain the leaching mother liquor of the ion type rare earth ore.

[0008] In the process of liquid injection, the second flow meter is used to obtain the first flow data of the leaching liquid in the liquid injection branch pipe and send the obtained first flow data to the controller, while the acoustic emission probe is used to obtain the expansion data and distribution data of the fissure in the mine in the seepage process and send the obtained expansion data and distribution data of the fissure to the acoustic emission device, and the acoustic emission device sends the processed data to the controller, and the controller analyzes the received expansion data, distribution data and first flow data to determine the liquid injection branch pipe which needs to be adjusted in flow according to the analysis result, and adjusts the flow control valve corresponding to the liquid injection branch pipe which needs to be adjusted in flow according to the analysis result, so that the leaching liquid can be uniformly distributed in the mine in the process of ion type rare earth mining, and accidents such as landslides and collapses caused by preferential flow can be avoided, the life safety of personnel is ensured, and property loss is avoided.

[0009] In addition, the ion type rare earth ore in-situ leaching intelligent mining system proposed in the present application can have the following additional technical features:

[0010] In an embodiment of the present application, the liquid injection main pipe is provided with a pressure control valve and a first flow meter, and the pressure control valve and the first flow meter are connected to the controller; the first flow meter is used to obtain second flow data of the leaching solution in the liquid injection main pipe; and the controller is further used to control the pressure control valve according to the second flow data.

[0011] In an embodiment of the present application, an alarm component is further included, and the alarm component is connected to the controller, wherein the controller is further used to control the alarm component to alarm if the extended data meets preset alarm conditions.

[0012] In an embodiment of the present application, the liquid injection mechanism further includes a grouting pump and a leaching solution storage tank, wherein the liquid inlet of the grouting pump is connected to the leaching solution storage tank through a connecting pipe, and the liquid outlet of the grouting pump is connected to the liquid injection main pipe.

[0013] In an embodiment of the present application, a plurality of ion concentration sensors are further included, and the plurality of ion concentration sensors are respectively arranged in the liquid injection holes and are located below the liquid outlets of the liquid injection branch pipes; and the plurality of ion concentration sensors are respectively connected to the controller.

[0014] In an embodiment of the present application, a mother solution collecting assembly is further included, and the mother solution collecting assembly includes a liquid inlet pipe, a pump body and a mother solution storage tank, wherein one end of the liquid inlet pipe is laid in the mine, the other end of the liquid inlet pipe is connected to the liquid inlet of the pump body, and the liquid outlet of the pump body is arranged in the interior of the mother solution storage tank.

[0015] In an embodiment of the present application, a booster pump is further included, and the booster pump is arranged on the liquid injection main pipe and is arranged close to the liquid injection branch pipes.

[0016] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.

[0018] Figure 1 FIG. 1 is a schematic diagram of an ion-type rare earth ore in-situ leaching intelligent mining system according to an embodiment of the present application.

[0019] As shown in the figure: 10, injection mechanism; 20, pressure control valve; 30, first flow meter; 40, second flow meter; 50, flow control valve; 60, acoustic emission assembly; 70, controller; 80, ion concentration sensor; 90, mother liquor collection assembly; 100, injection port; 110, booster pump; 101, grouting pump; 102, main injection pipe; 103, leachate storage tank; 104, injection branch pipe; 601, acoustic emission probe; 602, acoustic emission equipment; 901, inlet pipe; 902, pump body; 903, mother liquor storage tank. Detailed Implementation

[0020] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] The following describes, with reference to the accompanying drawings, an embodiment of the intelligent in-situ leaching mining system for ion-type rare earth minerals according to this application.

[0022] like Figure 1 As shown in the figure, the intelligent mining system for in-situ leaching of ion-type rare earth minerals in this application embodiment may include a liquid injection mechanism 10, a plurality of second flow meters 40, a plurality of flow control valves 50, an acoustic emission component 60, and a controller 70.

[0023] The injection mechanism 10 is used to inject the leaching solution into the injection hole 100 to mine ion-adsorption rare earth ore, so as to obtain the leaching mother liquor of ion-adsorption rare earth ore. It should be noted that the leaching solution can be prepared by mixing ammonium sulfate and sulfuric acid, calcium sulfate and sulfuric acid, or magnesium sulfate and sulfuric acid in a certain proportion.

[0024] It should be noted that the injection port 100 described in this example is referred to in [reference needed]. Figure 1 In order to achieve rapid and efficient mining of ion-adsorption rare earth minerals, multiple injection holes 100 can be excavated simultaneously. Personnel operate drilling machines to drill holes at pre-selected injection locations, drilling to 20cm above the weathered layer, with each injection hole 100 having a diameter of 20cm.

[0025] To further clarify the above embodiment, in one embodiment of this application, the injection mechanism 10 further includes a grouting pump 101 and a leachate storage tank 103, wherein the inlet of the grouting pump 101 is connected to the leachate storage tank 103 through a connecting pipe, and the outlet of the grouting pump 101 is connected to the injection main pipe 102.

[0026] The liquid injection mechanism 10 comprises a liquid injection main pipe 102 and a plurality of liquid injection branch pipes 104, one end of the plurality of liquid injection branch pipes 104 is communicated with the liquid injection main pipe 102, the other end of the plurality of liquid injection branch pipes 104 is respectively arranged in the corresponding liquid injection hole 100, and the second flow meter 40 and the flow control valve 50 are installed on the liquid injection branch pipe 104. The second flow meter 40 is used to obtain the first flow data of the leaching liquid in the liquid injection branch pipe 104.

[0027] It should be noted that the liquid injection main pipe 102 and the plurality of liquid injection branch pipes 104 described in this example are PVC pipes (i.e. hard polyvinyl chloride pipes), which have the characteristics of strong corrosion resistance, low price, and hard texture, thereby improving the service life of the liquid injection main pipe 102 and the plurality of liquid injection branch pipes 104.

[0028] Specifically, in the actual operation process, the relevant personnel controls the grouting pump 101, the grouting pump 101 extracts the leaching liquid (top water) in the leaching liquid storage tank 103 through the liquid injection main pipe 102 through the plurality of liquid injection branch pipes 104 to inject the leaching liquid into the liquid injection hole 100 to mine the ion type rare earth ore, so as to obtain the leaching mother liquor of the ion type rare earth ore.

[0029] The acoustic emission assembly 60 comprises a plurality of acoustic emission probes 601 and an acoustic emission device 602, wherein the plurality of acoustic emission probes 601 are arranged on the mine in a preset arrangement strategy, and the plurality of acoustic emission probes 601 are connected with the acoustic emission device 602, and the acoustic emission device 602 is used to obtain the expansion data and distribution data of the fissure (for example, the fissure naturally existing in the mine bedrock and the seepage channel washed out by the leaching liquid) in the mine during the seepage process through the plurality of acoustic emission probes 601.

[0030] It should be noted that the arrangement strategy of the plurality of acoustic emission probes 601 described in this example can be set according to the actual situation, for example, the arrangement strategy can arrange the plurality of acoustic emission probes 601 transversely, longitudinally or crosswise according to the position of the liquid injection hole 100, and when installing the acoustic emission probe 601, a coupling agent needs to be applied between the acoustic emission probe 601 and the contact position to exclude air between the acoustic emission probe 601 and the contact position, thereby improving the accuracy of the acoustic emission probe 601 during detection.

[0031] As a possible case, in order to improve the stability of the acoustic emission probe 601 signal transmission, the acoustic emission probe 601 can be built-in preamplifier, so as to amplify the signal and ensure the stability of the acoustic emission probe 601 signal transmission.

[0032] The controller 70 is connected with the liquid injection mechanism 10, the second flow meter 40, the flow control valve 50 and the acoustic emission device 602 respectively, and the controller 70 is used for controlling the plurality of flow control valves 50 according to the expansion data, the distribution data and the first flow data.

[0033] Specifically, in the actual operation process, the relevant personnel controls the grouting pump 101, the grouting pump 101 extracts the leaching liquid (top water) in the leaching liquid storage tank 103, and injects the leaching liquid into the ion-type rare earth ore through the injection main pipe 102 and the plurality of injection branch pipes 104 to mine the ion-type rare earth ore, so as to obtain the leaching mother liquor of the ion-type rare earth ore.

[0034] In the process of injecting liquid, the second flow meter 40 is used to obtain the first flow data of the leaching liquid in the injection branch pipe 104, and sends the obtained first flow data to the controller 70, and the acoustic emission probe 601 is used to obtain the expansion data and the distribution data of the fissure in the mine in the seepage process, and sends the obtained expansion data and the distribution data of the fissure to the acoustic emission device 602, and the acoustic emission device 602 sends the processed data to the controller 70, and the controller 70 analyzes the received expansion data, distribution data and first flow data, and determines the injection branch pipe 104 which needs to be adjusted according to the analysis result, and adjusts the flow control valve 50 corresponding to the injection branch pipe 104 which needs to be adjusted according to the analysis result.

[0035] Wherein, the controller 70 takes the lowest flow value in the plurality of first flow data as a standard value (the flow value is 0, which cannot be used as a standard value), if the flow value of any one or more of the plurality of first flow data is greater than the lowest flow value, then the controller 70 controls the flow control valve 50 on the one or more injection branch pipes 104 with a flow value greater than the lowest flow value to adjust the flow size, so that the flow sizes of the plurality of injection branch pipes 104 are the same, so that the leaching liquid can be evenly distributed in the mine.

[0036] If the expansion data and the first flow data are greater than the preset threshold value at the same time (which can be calibrated according to the actual situation), then the controller 70 controls the flow control valve 50 corresponding to the injection branch pipe 104 to be closed, so as to avoid the gradual expansion of the dominant seepage channel and the occurrence of preferential flow, so as to avoid the occurrence of landslide and collapse and other accidents, and to protect the safety of personnel's life, and to avoid the loss of property.

[0037] As a possible case, the controller 70 can also communicate with the upper computer through wired or wireless mode to receive the instructions sent by the upper computer, and operate the devices connected with the controller 70 according to the instructions, and the controller 70 can also transmit the received data to the upper computer in time, so as to facilitate the relevant personnel to view.

[0038] In one embodiment of the present application, as shown in Figure 1 The pressure control valve 20 and the first flow meter 30 are installed on the liquid injection main pipe 102, and are connected to the controller 70. The first flow meter 30 is used to obtain the second flow data of the leaching solution in the liquid injection main pipe 102, and the controller 70 is further used to control the pressure control valve 20 according to the second flow data.

[0039] Specifically, in the actual operation process, the first flow meter 30 is used to obtain the second flow data of the leaching solution in the liquid injection main pipe 102, and transmit the second flow data to the controller 70. The controller 70 adjusts the pressure control valve 20 according to the second flow data, so as to ensure the stability of the flow pressure in the liquid injection main pipe 102.

[0040] Further, as shown in Figure 1 The above-mentioned in-situ leaching intelligent mining system of ion type rare earth ore can further include an alarm 120 connected to the controller 70. The controller 70 is further used to control the alarm 120 to alarm if the extended data meets the preset alarm condition. The preset alarm condition can be calibrated according to the actual situation.

[0041] It should be noted that the alarm 120 described in this example can be an audible and light alarm or a buzzer, which is not limited here and is selected according to the actual situation. The alarm gives an audible or buzzing sound to warn relevant personnel of the possibility of landslides or landslides, so that relevant personnel can take timely measures.

[0042] Specifically, in the actual operation process, if the extended data and the first flow data are both greater than the corresponding preset threshold value at the same time, the controller 70 controls the alarm 120 to start, and the alarm 120 gives a pre-warning to warn relevant personnel of the possibility of landslides or landslides, so that relevant personnel can take timely measures to avoid injury and property loss in the event of landslides or landslides.

[0043] Further, as shown in Figure 1As shown, the above-mentioned intelligent in-situ leaching mining system for ion-adsorption rare earth minerals may also include multiple ion concentration sensors 80. These sensors 80 are respectively installed in the injection holes 100, and are located below the outlet of the injection branch pipe 104. Each sensor 80 is connected to a controller 70. By installing the ion concentration sensors 80, the ion concentration near the injection holes 100 can be detected, and the detected results can be sent to the controller 70. This allows for the determination of the ion concentration near the injection holes 100. If the ion concentration near the injection holes 100 is lower than a preset mining threshold (i.e., indicating the end of ion-adsorption rare earth mining at this location), the controller 70 controls the flow control valve 50 on the injection branch pipe 104 corresponding to the injection hole 100 to close. This not only avoids the waste of leaching solution resources but also reduces the pollution caused by the leaching solution to the environment.

[0044] Furthermore, such as Figure 1 As shown, the above-mentioned intelligent in-situ leaching mining system for ion-adsorption rare earth minerals may also include a mother liquor collection component 90. The mother liquor collection component 90 includes an inlet pipe 901, a pump body 902, and a mother liquor storage tank 903. One end of the inlet pipe 901 is laid in the mine, and the other end of the inlet pipe 901 is connected to the inlet of the pump body 902. The outlet of the pump body 902 is located inside the mother liquor storage tank 903. By setting up the mother liquor collection component 90, the leaching mother liquor of the ion-adsorption rare earth minerals can be collected.

[0045] Specifically, in actual operation, relevant personnel control the pump body 902 to extract the leaching mother liquor of ion-adsorption rare earth ore through the liquid inlet pipe 901, and introduce the mother liquor into the mother liquor storage tank 903 to complete the collection of mother liquor.

[0046] As a possible approach, to improve the purity of the mother liquor, a filter screen can be detachably installed in the mother liquor storage tank 903 to filter out contaminants and debris mixed in with the mother liquor. The detachable filter screen facilitates installation and removal, thereby improving the cleaning effect of the filter screen. The filter screen can be fixed in the mother liquor storage tank 903 by means of threaded fasteners or rivets. The threaded fasteners can be bolts or screws, which can be selected according to the actual situation, and no specific restrictions are made here.

[0047] Furthermore, such as Figure 1 As shown, the above-mentioned intelligent mining system for in-situ leaching of ion-adsorption rare earth minerals may also include a booster pump 110. The booster pump 110 is installed on the main injection pipe 102 and is located near the injection branch pipe 104. During long-distance transportation, it can supplement the pressure in the main injection pipe 102 and improve the efficiency of injection.

[0048] In conclusion, the ion-type rare earth ore in-situ leaching intelligent mining system can make the leaching liquid evenly distributed in the mine during the ion-type rare earth mining process, avoid the occurrence of landslide and collapse accidents caused by preferential flow, protect the life safety of personnel, and avoid property loss.

[0049] In the description of the present specification, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0050] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0051] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and deformations to the above embodiments within the scope of the present application.

Claims

1. An in-situ leaching smart mining system for ion-type rare earth ore, characterized in that, The injection mechanism, a plurality of second flow meters, a plurality of flow control valves, an acoustic emission assembly and a controller are included, wherein, The injection mechanism is used for injecting leaching solution into the injection hole to exploit the ion type rare earth ore to obtain the leaching mother liquor of the ion type rare earth ore; The injection mechanism includes an injection main pipe and a plurality of injection branch pipes, wherein, One end of the plurality of injection branch pipes is communicated with the injection main pipe, and the other end of the plurality of injection branch pipes is respectively arranged in the corresponding injection hole, and the second flow meter and the flow control valve are installed on the injection branch pipe; The second flow meter is used for obtaining the first flow data of the leaching solution in the injection branch pipe; The acoustic emission assembly includes a plurality of acoustic emission probes and an acoustic emission device, wherein, The plurality of acoustic emission probes are respectively arranged on the mine in a preset arrangement strategy, and the plurality of acoustic emission probes are respectively connected with the acoustic emission device, and the acoustic emission device is used for obtaining the expansion data and distribution data of the fissure in the mine in the seepage process through the plurality of acoustic emission probes; The controller is connected with the injection mechanism, the second flow meter, the flow control valve and the acoustic emission device, and the controller is used for controlling the plurality of flow control valves according to the expansion data, the distribution data and the first flow data; The controller takes the lowest flow value in the plurality of first flow data as a standard value, and if the flow value of any one or more of the plurality of first flow data is greater than the lowest flow value, the controller controls the flow control valve on the one or more injection branch pipes with a flow value greater than the lowest flow value to adjust the flow size, so that the flow sizes of the plurality of injection branch pipes are the same; If the expansion data and the first flow data are both greater than a preset threshold value, the threshold value can be calibrated according to the actual situation, the controller controls the flow control valve on the corresponding injection branch pipe to be closed; The pressure control valve and the first flow meter are installed on the injection main pipe, and the pressure control valve and the first flow meter are respectively connected with the controller; The first flow meter is used for obtaining the second flow data of the leaching solution in the injection main pipe; The controller is also used for controlling the pressure control valve according to the second flow data.

2. The in-situ leaching and smart mining system of ion-type rare earth ore in claim 1, characterized in that, An alarm is also included, and the alarm is connected with the controller, wherein the controller is also used for controlling the alarm to alarm if the expansion data meets a preset alarm condition.

3. The in-situ leaching and smart mining system of ion-type rare earth ore in claim 1, characterized in that, The injection mechanism also includes a grouting pump and a leaching solution storage tank, wherein The liquid inlet of the grouting pump is communicated with the leaching solution storage tank through a connecting pipe, and the liquid outlet of the grouting pump is communicated with the injection main pipe.

4. The in-situ leaching smart mining system of claim 1, wherein, A plurality of ion concentration sensors are also included, and the plurality of ion concentration sensors are respectively arranged in the injection hole, and the ion concentration sensor is located below the liquid outlet of the injection branch pipe; The plurality of ion concentration sensors are respectively connected with the controller.

5. The in-situ leaching smart mining system of ion-type rare earth ore in accordance with claim 1, characterized in that, A mother liquor collecting assembly is also included; The mother liquor collecting assembly includes a liquid inlet pipe, a pump body and a mother liquor storage tank, wherein One end of the liquid inlet pipe is laid in the mine, and the other end of the liquid inlet pipe is communicated with the liquid inlet of the pump body; The liquid outlet of the pump body is arranged in the interior of the mother liquor storage tank.

6. The in-situ leaching smart mining system of ion-type rare earth ore in claim 1, characterized in that, A booster pump is further included; The booster pump is arranged on the liquid injection main pipe, and the booster pump is arranged close to the liquid injection branch pipe.

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