CN112987107A - Method and system for detecting ion type rare earth ore leaching blind zone - Google Patents
Method and system for detecting ion type rare earth ore leaching blind zone Download PDFInfo
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Abstract
The invention relates to a method and a system for detecting an ion type rare earth ore leaching blind zone, wherein the method comprises the following steps: arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by using the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body; inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line; determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area. According to the invention, the ore body of the leaching is subjected to line measurement and fixed point, data acquisition and data inversion mainly through a high-density resistivity instrument detection technology, so that the position of the detected leaching blind area is obtained, and the accurate positioning of the leaching blind area is realized.
Description
Technical Field
The invention relates to the field of ore leaching processes, in particular to a method and a system for detecting an ion type rare earth ore leaching blind zone.
Background
At present, the ionic rare earth ore mining process adopts an in-situ ore leaching method, an ore leaching agent is injected into a mountain body through a liquid injection hole, cations exchange with rare earth ions when the ore leaching agent passes through the ore body, and a mother solution containing the rare earth ions is recovered through a solution collecting system.
However, in the process of in-situ leaching of the ionic rare earth ore, there are often many blind areas in the ore body, i.e. ore body into which the leaching agent does not penetrate, so that the rare earth resources in the blind areas permanently remain in the mine and cannot be recovered. The reason for this phenomenon is mainly the following two factors: firstly, due to the unreasonable arrangement of the liquid injection system, the liquid injection sequence of the ore block and the difference of the liquid injection strength of each liquid injection hole, the ore leaching agent forms a fixed permeation channel in the ore body, so that the ore leaching agent cannot permeate into the rare earth ore in the blind area; secondly, because the weathering degrees of all mineral layers of the ionic rare earth ore are different and the permeability of ore bodies in different areas of all mineral layers is different, the ore leaching agent cannot permeate into the ore soil with poor permeability in the in-situ ore leaching process, so that more leaching blind areas can appear. The occurrence of the ore leaching blind zone causes the waste of rare earth resources and reduces the resource recovery rate.
For many years, the problem of the leaching blind zone of the ionic rare earth mine is not solved, and the reason is that the specific position of the leaching blind zone in an ore body cannot be determined.
Disclosure of Invention
The invention aims to provide a method and a system for detecting an ion type rare earth ore leaching blind area, which can accurately position the position of the blind area, judge the shape and size of the blind area and improve the resource utilization rate.
In order to achieve the purpose, the invention provides the following scheme:
a method for detecting an ion type rare earth ore leaching blind zone comprises the following steps:
arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by using the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body;
inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line;
determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area.
Preferably, after determining the ore body region corresponding to the resistivity greater than the set threshold in the apparent resistivity profile as a high-resistance abnormal region, the method further includes:
establishing an ore body three-dimensional model according to the plurality of test lines and the high-resistance abnormal area, and obtaining the occurrence state of an ore leaching blind area according to the ore body three-dimensional model; the occurrence states include thickness, depth, and inclination;
and arranging the position of the liquid injection hole according to the occurrence state so as to realize the recovery of the rare earth resources in the leaching blind area.
Preferably, the inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line specifically includes:
and inverting the apparent resistivity data detected by each test line by adopting a 2.5-dimensional inversion method to obtain an apparent resistivity profile of each test line.
Preferably, the establishing of the ore body three-dimensional model according to the test line and the high resistance abnormal region and the obtaining of the occurrence state of the leaching blind zone according to the ore body three-dimensional model specifically include:
measuring the position coordinates of the electrode of each test line by using a real-time dynamic measuring instrument;
inputting the position coordinates into a mine CAD geological topographic map, drawing each test line in the mine CAD geological topographic map according to the coordinates, and drawing the high-resistance abnormal area of each test line in the mine CAD geological topographic map to obtain a drawn mine CAD geological topographic map;
inputting the drawn mine CAD geological topographic map into a digital mine software system to obtain an ore body three-dimensional model, wherein the ore body three-dimensional model comprises a mine three-dimensional model and an ore leaching blind area three-dimensional model;
and obtaining the occurrence state of the leaching blind area according to the ore body three-dimensional model.
Preferably, the digital mine software system is specifically a dim ne 2010 digital mine software system.
An ion type rare earth ore leaching blind zone detection system comprises:
the data measurement module is used for arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by using the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body;
the inversion module is used for inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line;
the determining module is used for determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile map as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area.
Preferably, after the determining module, the method further comprises:
the model establishing module is used for establishing an ore body three-dimensional model according to the plurality of test lines and the high-resistance abnormal area and obtaining the occurrence state of the leaching blind area according to the ore body three-dimensional model; the occurrence states include thickness, depth, and inclination;
and the recovery module is used for arranging the position of the liquid injection hole according to the occurrence state so as to realize the recovery of the rare earth resources in the ore leaching blind area.
Preferably, the inversion module specifically includes:
and the inversion unit is used for inverting the apparent resistivity data detected by each test line by adopting a 2.5-dimensional inversion method to obtain an apparent resistivity profile of each test line.
Preferably, the model building module specifically includes:
the measuring unit is used for measuring the position coordinates of the electrode of each test line by using a real-time dynamic measuring instrument;
the drawing unit is used for inputting the position coordinates into a mine CAD geological topographic map, drawing each test line in the mine CAD geological topographic map according to the coordinates, and drawing the high-resistance abnormal area of each test line in the mine CAD geological topographic map to obtain the drawn mine CAD geological topographic map;
the model establishing unit is used for inputting the drawn mine CAD geological topographic map into a digital mine software system to obtain the ore body three-dimensional model, and the ore body three-dimensional model comprises a mine three-dimensional model and an ore leaching blind area three-dimensional model;
and the state acquisition unit is used for acquiring the occurrence state of the leaching blind area according to the ore body three-dimensional model.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a method and a system for detecting an ion type rare earth ore leaching blind zone, wherein the method comprises the following steps: arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by using the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body; inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line; determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area. According to the invention, the resistivity instrument detection technology is mainly adopted, the nondestructive detection method is utilized, the ore body is not damaged in the detection process, the liquid injection system and the production of the ore region are not influenced, and the line measurement and the fixed point, the data acquisition and the data inversion are carried out on the ore body subjected to ore leaching, so that the position of the detected ore leaching blind area is obtained, and the accurate positioning of the ore leaching blind area is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of the method for detecting the ion type rare earth ore leaching blind zone according to the invention;
FIG. 2 is a schematic diagram of a test line layout according to an embodiment of the present invention;
FIG. 3 is an apparent resistivity profile of an embodiment provided by the present invention;
FIG. 4 is a schematic view of a blind area liquid injection system according to an embodiment of the present disclosure;
FIG. 5 is a block diagram of the detection system for the ion type rare earth ore leaching blind zone.
Description of the symbols:
1-test line, 2-leaching blind zone, 3-liquid injection hole and 4-ore body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a method and a system for detecting an ion type rare earth ore leaching blind area, which can accurately position the position of the blind area, judge the shape and size of the blind area and improve the resource utilization rate.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a flowchart of the method for detecting the ion-type rare earth ore leaching blind area according to the present invention, and as shown in fig. 1, the method for detecting the ion-type rare earth ore leaching blind area according to the present invention includes:
step 100: arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by using the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body.
Step 200: and inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line.
Step 300: determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area.
Specifically, the resistivity meter is a high-density resistivity meter.
Fig. 2 is a schematic diagram of a test line arrangement in an embodiment of the invention, and as shown in fig. 2, step 100 is a process of line measurement and point fixing, in an early stage of liquid injection, mineral leaching liquid enters an ore body and permeates in various directions, and as the liquid is injected continuously, the permeation time is prolonged, and the ore body finally reaches a saturated state. At this moment, adopt the super high density resistivity appearance to survey the ore body, arrange the survey line along the crest trend, 64 electrodes are arranged to every survey line, set up respectively according to every electrode interval of different topographic features: 1m or 1.5m or 2 m. According to the selected different electrode distances, the length of each measuring line is respectively as follows: 64m or 94.5m or 126m, with a 2m pitch.
Preferably, the inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line includes:
and inverting the apparent resistivity data detected by each test line by adopting a 2.5-dimensional inversion method to obtain an apparent resistivity profile of each test line.
Fig. 3 is an apparent resistivity profile in the embodiment of the invention, and as shown in fig. 3, the high resistance abnormal region in the apparent resistivity profile is the shape and size of the leaching dead zone in the survey line profile.
Preferably, the establishing of the ore body three-dimensional model according to the test line and the high resistance abnormal region and the obtaining of the occurrence state of the leaching blind zone according to the ore body three-dimensional model include:
and measuring the position coordinates of the electrode of each test line by using a real-time dynamic measuring instrument.
And inputting the position coordinates into a mine CAD geological topographic map, drawing each test line in the mine CAD geological topographic map according to the coordinates, and drawing the high-resistance abnormal area of each test line in the mine CAD geological topographic map to obtain the drawn mine CAD geological topographic map.
And inputting the drawn mine CAD geological topographic map into a digital mine software system to obtain the ore body three-dimensional model, wherein the ore body three-dimensional model comprises a mine three-dimensional model and an ore leaching blind area three-dimensional model.
And obtaining the occurrence state of the leaching blind area according to the ore body three-dimensional model.
Preferably, the digital mine software system is specifically a dim ne 2010 digital mine software system.
As an optional implementation manner, after the position coordinates of the head, the tail and the middle electrodes of the two cables of each measuring line, which are 6 electrodes in total, are measured by an RTK measuring instrument (real-time kinematic measuring instrument), the coordinates are imported into a mine CAD geological topography, each measuring line is drawn in the CAD geological topography according to the point coordinates, and the high-resistance abnormal area of each measuring line is drawn in the mine geological topography. And (3) importing the CAD drawing into DIMINE software to produce a three-dimensional model of the mine and a three-dimensional model of the ore leaching blind area, and obtaining occurrence states of the blind area, namely the thickness, the depth, the inclination angle and the like of the blind area.
Fig. 4 is a schematic view of a blind area liquid injection system in an embodiment of the present invention, as shown in fig. 4, after step 300, the method further includes:
establishing an ore body three-dimensional model according to the plurality of test lines and the high-resistance abnormal area, and obtaining the occurrence state of an ore leaching blind area according to the ore body three-dimensional model; the imparted states include thickness, depth, and tilt angle.
And arranging the position of the liquid injection hole according to the occurrence state so as to realize the recovery of the rare earth resources in the leaching blind area.
As an optional implementation mode, the parameters of the liquid injection holes are reasonably arranged according to the occurrence state of the ore leaching dead zone. According to the invention, the liquid injection holes are encrypted above the blind areas according to the information of the thickness, the depth, the inclination angle and the like of the ore leaching blind areas, and the depth of the liquid injection holes is adjusted to the blind areas according to the depths of different parts of the blind areas.
Fig. 5 is a block connection diagram of the ion-type rare earth ore leaching blind area detection system of the present invention, and as shown in fig. 5, the present invention further provides an ion-type rare earth ore leaching blind area detection system, including:
the data measurement module is used for arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by utilizing the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body.
And the inversion module is used for inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line.
The determining module is used for determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile map as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area.
Preferably, after the determining module, the method further comprises:
the model establishing module is used for establishing an ore body three-dimensional model according to the plurality of test lines and the high-resistance abnormal area and obtaining the occurrence state of the leaching blind area according to the ore body three-dimensional model; the imparted states include thickness, depth, and tilt angle.
And the recovery module is used for arranging the position of the liquid injection hole according to the occurrence state so as to realize the recovery of the rare earth resources in the ore leaching blind area.
Preferably, the inversion module specifically includes:
and the inversion unit is used for inverting the apparent resistivity data detected by each test line by adopting a 2.5-dimensional inversion method to obtain an apparent resistivity profile of each test line.
Preferably, the model building module specifically includes:
and the measuring unit is used for measuring the position coordinates of the electrode of each test line by using a real-time dynamic measuring instrument.
And the drawing unit is used for inputting the position coordinates into a mine CAD geological topographic map, drawing each test line in the mine CAD geological topographic map according to the coordinates, and drawing the high-resistance abnormal area of each test line in the mine CAD geological topographic map to obtain the drawn mine CAD geological topographic map.
And the model establishing unit is used for inputting the drawn mine CAD geological topographic map into a digital mine software system to obtain the ore body three-dimensional model, and the ore body three-dimensional model comprises a mine three-dimensional model and an ore leaching blind area three-dimensional model.
And the state acquisition unit is used for acquiring the occurrence state of the leaching blind area according to the ore body three-dimensional model.
Compared with the prior art, the invention has the beneficial effects that:
the invention mainly uses the ultra-high density resistivity instrument detection technology to carry out line measurement and fixed point, data acquisition, data inversion and stope three-dimensional modeling on the ore body of the leaching ore. According to the position and the form of the detected ore leaching blind area, liquid injection hole parameters are designed for the blind area in a targeted manner, and the aim of recovering the rare earth resources in the blind area is fulfilled. The invention adopts a nondestructive detection method, does not cause any damage to ore bodies in the detection process, does not influence the liquid injection system and production of the mining area, realizes the accurate positioning of the leaching blind area, recovers residual rare earth resources and improves the resource utilization rate.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. The method for detecting the ion type rare earth ore leaching blind zone is characterized by comprising the following steps of:
arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by using the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body;
inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line;
determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area.
2. The method of claim 1, wherein after determining an ore body region corresponding to a resistivity greater than a set threshold in the apparent resistivity profile as a high-resistivity abnormal region, the method further comprises:
establishing an ore body three-dimensional model according to the plurality of test lines and the high-resistance abnormal area, and obtaining the occurrence state of an ore leaching blind area according to the ore body three-dimensional model; the occurrence states include thickness, depth, and inclination;
and arranging the position of the liquid injection hole according to the occurrence state so as to realize the recovery of the rare earth resources in the leaching blind area.
3. The method for detecting the blind zone in the leaching of the ionic rare earth ore according to claim 1, wherein the inverting is performed on the apparent resistivity data to obtain an apparent resistivity profile of each test line, and specifically comprises:
and inverting the apparent resistivity data detected by each test line by adopting a 2.5-dimensional inversion method to obtain an apparent resistivity profile of each test line.
4. The method for detecting the ionic rare earth ore leaching blind area according to claim 2, wherein the establishing of the ore body three-dimensional model according to the test line and the high-resistance abnormal area and the obtaining of the occurrence state of the leaching blind area according to the ore body three-dimensional model specifically comprise:
measuring the position coordinates of the electrode of each test line by using a real-time dynamic measuring instrument;
inputting the position coordinates into a mine CAD geological topographic map, drawing each test line in the mine CAD geological topographic map according to the coordinates, and drawing the high-resistance abnormal area of each test line in the mine CAD geological topographic map to obtain a drawn mine CAD geological topographic map;
inputting the drawn mine CAD geological topographic map into a digital mine software system to obtain an ore body three-dimensional model, wherein the ore body three-dimensional model comprises a mine three-dimensional model and an ore leaching blind area three-dimensional model;
and obtaining the occurrence state of the leaching blind area according to the ore body three-dimensional model.
5. The method for detecting the ionic type rare earth ore leaching blind zone according to claim 4, wherein the digital mine software system is a DIMINE 2010 digital mine software system.
6. The utility model provides an ion type rare earth ore leaching blind area detection system which characterized in that includes:
the data measurement module is used for arranging a plurality of test lines of the resistivity meter along the direction of a ridge, and detecting an ore body by using the plurality of test lines to obtain apparent resistivity data detected by each test line; each test line comprises a plurality of electrodes, and the distance between every two adjacent electrodes on each test line is set according to different topographic features of a mountain; the ore body is inside the mountain body;
the inversion module is used for inverting the apparent resistivity data to obtain an apparent resistivity profile of each test line;
the determining module is used for determining an ore body area corresponding to the resistivity larger than a set threshold value in the apparent resistivity profile map as a high-resistance abnormal area; the high-resistance abnormal area is the position of the ore leaching blind area.
7. The ionic rare earth ore leaching blind zone detection system according to claim 6, further comprising, after the determination module:
the model establishing module is used for establishing an ore body three-dimensional model according to the plurality of test lines and the high-resistance abnormal area and obtaining the occurrence state of the leaching blind area according to the ore body three-dimensional model; the occurrence states include thickness, depth, and inclination;
and the recovery module is used for arranging the position of the liquid injection hole according to the occurrence state so as to realize the recovery of the rare earth resources in the ore leaching blind area.
8. The system of claim 6, wherein the inversion module specifically comprises:
and the inversion unit is used for inverting the apparent resistivity data detected by each test line by adopting a 2.5-dimensional inversion method to obtain an apparent resistivity profile of each test line.
9. The system according to claim 7, wherein the model building module specifically comprises:
the measuring unit is used for measuring the position coordinates of the electrode of each test line by using a real-time dynamic measuring instrument;
the drawing unit is used for inputting the position coordinates into a mine CAD geological topographic map, drawing each test line in the mine CAD geological topographic map according to the coordinates, and drawing the high-resistance abnormal area of each test line in the mine CAD geological topographic map to obtain the drawn mine CAD geological topographic map;
the model establishing unit is used for inputting the drawn mine CAD geological topographic map into a digital mine software system to obtain the ore body three-dimensional model, and the ore body three-dimensional model comprises a mine three-dimensional model and an ore leaching blind area three-dimensional model;
and the state acquisition unit is used for acquiring the occurrence state of the leaching blind area according to the ore body three-dimensional model.
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