An ion adsorption and collection device used in an electro-adsorption prospecting method

Abstract

The present invention discloses an ion adsorption collection device for an electro-adsorption prospecting method, comprising an electrolytic cell, the electrolytic cell comprising a body, the body being provided with a sample slot, a first collecting slot and a second collecting slot, and a first slot and a second slot for inserting a first electrode and a second electrode, wherein the sample slot is used to place a sample, between the two collecting slots; the two collecting slots are provided with an adsorption medium and a liquid auxiliary agent, and the two electrodes can respectively contact the auxiliary agents in their corresponding collecting slots after being inserted; a card slot for placing a diaphragm plate is provided on the connecting channel path between the sample slot and the first collecting slot and the second collecting slot, a through hole is provided on the diaphragm plate, and an isolation film is provided on the through hole, and when the diaphragm plate is inserted into the card slot, the connecting channel and the through hole on the diaphragm plate constitute the only path for realizing liquid circulation between the sample slot and the two collecting slots. The device of the present invention has a simple structure, low cost, and is convenient for batch testing.

Description

Technical Field

[0001] The invention relates to an ion adsorption and collection device, in particular to an ion adsorption and collection device used in an electric adsorption prospecting method. Background Art

[0002] As mineral exploration continues to deepen, easily discovered outcrop and shallowly buried mines have become increasingly rare, and mineral exploration targets have gradually shifted to hard-to-find, deeply buried hidden mines, making mineral exploration increasingly difficult.

[0003] In recent years, domestic and foreign studies have shown that there are still diagenesis, magmatism, metamorphism, tectonic deformation, mineralization and hydrothermal boiling around the ore body. Under the erosion of these geological actions, the derived liquid contains a large number of elements directly related to the ore body. These elements will follow the trajectory of stress difference, temperature difference, salinity difference and density difference, and migrate laterally and vertically in a relatively closed geological environment. The ore-forming elements and associated elements that migrate to the shallow layer are easily blocked by "geochemical barriers" such as organic matter, iron and manganese oxides and hydroxide colloids to form epigenetic geochemical anomalies. If this is a strong anomaly, it is easy to be discovered by the past geochemical prospecting methods. If it is a weak anomaly, it is difficult to be discovered. Many prospecting experts use enhanced anomalies to prospect for minerals (such as partial extraction, complex method, field geoelectric extraction, etc.).

[0004] The electro-adsorption prospecting method refers to a prospecting method that uses physical and chemical means to discover epigenetic geochemical anomalies. It is also a prospecting method that strengthens anomalies. The electro-adsorption prospecting method was proposed by the inventor team of this application (Zhou Qiming. The effect of electro-geochemistry in quickly finding hidden ore deposits [J]. Mineral Resources and Geology. 2001.15 (4)). It is to put the sample into a special device indoors, add a specially configured co-solvent, and then conduct an electric treatment to release the active epigenetic geochemical anomaly components and further enrich and strengthen them, so as to achieve the purpose of using them for prospecting. The electro-adsorption method is a direct indicator for finding metal minerals. The elements it extracts are the main ore-forming elements and the associated elements. According to the combination of abnormal elements, it can directly reflect the deep mineral species. If it is a gold mine, the gold anomaly is prominent, if it is a lead-zinc mine, the lead-zinc anomaly is prominent, if it is a copper mine, the copper anomaly is prominent, and so on. After searching, no relevant reports on devices used for electro-adsorption prospecting methods have been found. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an ion adsorption and collection device which has a simple structure and is convenient for batch testing and is used in an electro-adsorption prospecting method.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An ion adsorption and collection device used in an electrosorption prospecting method comprises an electrolytic cell, wherein the electrolytic cell comprises a body, the body is provided with a sample cell, a first collection cell and a second collection cell which are interconnected, wherein the sample cell is located between the first collection cell and the second collection cell; the sample cell is used to place a sample; the first collection cell and the second collection cell are both filled with an adsorption medium and an auxiliary agent, wherein the auxiliary agent is a liquid; a card slot for placing a diaphragm plate is provided on the connecting channel path between the sample cell and the first collection cell and the connecting channel path between the sample cell and the second collection cell, the diaphragm plate is provided with a through hole penetrating the thickness thereof, the through hole is provided with an isolation membrane which is only for liquid to pass through, and when the diaphragm plate is inserted into the card slot, the connecting channel and the through hole on the diaphragm plate constitute the only path for realizing liquid circulation among the sample cell, the first collection cell and the second collection cell;

[0008] The main body is also provided with a first slot and a second slot for inserting the first electrode and the second electrode. The first slot is opened in a position such that when the first electrode is placed in the first slot, the test end of the first electrode can contact the auxiliary agent in the first collecting tank. The second slot is opened in a position such that when the second electrode is placed in the second slot, the test end of the second electrode can contact the auxiliary agent in the second collecting tank.

[0009] In the above technical scheme, the shapes of the sample slot, the first collecting slot and the second collecting slot can be designed as needed, and can be square slots, cylindrical slots and other regular-shaped slots; preferably, the sample slot, the first collecting slot and the second collecting slot are square slots or cylindrical slots, and at this time, it is more preferred that the center lines of the sample slot, the first collecting slot and the second collecting slot coincide with each other in the horizontal direction, so that the electric field between the two electrodes is kept as a uniform electric field when power is turned on, and the parallel electric lines are kept. The connecting channel path of the sample slot and the first collecting slot and the connecting channel of the sample slot and the second collecting slot can be cylindrical or square in shape. In order to realize that when the diaphragm plate is inserted into the card slot, the connecting channel and the through hole on the diaphragm plate constitute the only path for liquid circulation between the sample slot, the first collecting slot and the second collecting slot, the opening position of the through hole on the diaphragm plate should be that when the diaphragm plate is inserted into the card slot, the through hole on the diaphragm plate has at least a part that intersects with the connecting channel, and preferably the through hole on the diaphragm plate is just located within the range covered by the longitudinal cross section of the connecting channel, or completely coincides with the connecting channel. The isolation film can be a PE (polyethylene) isolation film, a PP (polypropylene) isolation film or a PET (polyethylene terephthalate) isolation film, and the isolation film is fixed to the through hole by bonding, or the isolation film is used to cover the entire diaphragm plate to achieve the isolation film being set on the diaphragm plate.

[0010] In the above technical solution, the adsorption medium can be filter paper, fiber or cotton, etc., which can be selected according to needs; the auxiliary agent is also called a co-solvent, which helps the elements to remain soluble. The specific selection needs to be made according to different ore bodies. For example, when the ore sample is gold ore, chlorobenzene solution (mass concentration is 0.01%) can be selected as the auxiliary agent.

[0011] In order to prevent impurities in the test environment from falling into the first collection tank and the second collection tank during the test of the sample, the device preferably also includes a cover plate that can cover all the openings of the sample tank, the first collection tank and the second collection tank on the electrolytic cell. The cover plate and the electrolytic cell are usually connected in a detachable manner, such as a hinge connection, a snap connection or a hinge connection. In order to ensure that the diaphragm plate can still be inserted into the card slot after the cover plate is covered, and to prevent the diaphragm plate from being too high above the electrolytic cell and the cover plate and the electrolytic cell from being fully closed, it is preferred to open a through-slot for the diaphragm plate to pass through the cover plate at the setting position of the card slot on the cover plate; in order to allow the gas that may be generated during the test to be discharged immediately, it is preferred to open an exhaust hole on the cover plate. The number of exhaust holes can be set as needed. In the present application, the number of exhaust holes is preferably 2, which are respectively opened on the cover plate at the corresponding positions of the first collection tank and the second collection tank.

[0012] Compared with the prior art, the device of the present invention has a simple and reliable structure, low cost, and is easy to stock in batches. Before testing, a series of samples are filled in the sample tank in batches in advance, and batches are tested at the same time during testing, saving time. Moreover, the device can be reused after recycling and cleaning, and is not easily damaged. The device is made of glass or transparent organic plastic, and can be printed with a 3D printer to select suitable waterproof materials for emergency use in experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the ion adsorption and collection device used in the electro-adsorption prospecting method of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of the electrolytic cell in the structure shown;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the diaphragm plate in the structure shown.

[0016] The numbers in the figure are:

[0017] 1 electrolytic cell, 2 cover plate, 3 exhaust hole, 4 through-hole, 5 second electrode, 6 second collecting cell, 7 diaphragm plate, 8 sample cell, 9 first collecting cell, 10 first electrode, 11 first slot, 12 card slot, 13 second slot, 14 through hole. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings to provide a better understanding of the content of the present invention, but the present invention is not limited to the following embodiments.

[0019] See also Figures 1 to 3 The ion adsorption and collection device used in the electro-adsorption prospecting method of the present invention comprises a horizontally placed electrolytic cell 1 and a cover plate 2 detachably connected to the electrolytic cell 1, wherein:

[0020] The electrolytic cell 1 comprises a body, on which are provided a sample slot 8, a first collecting slot 9 and a second collecting slot 6 which are interconnected, wherein the sample slot 8 is located between the first collecting slot 9 and the second collecting slot 6; the sample slot 8 is used to place a sample; the first collecting slot 9 and the second collecting slot 6 are both filled with an adsorption medium and an auxiliary agent, wherein the auxiliary agent is a liquid; a slot 12 for placing a diaphragm plate 7 is provided on the connecting channel path between the sample slot 8 and the first collecting slot 9 and the connecting channel path between the sample slot 8 and the second collecting slot 6, the diaphragm plate 7 is provided with a through hole 14 which runs through the thickness thereof, and an isolation membrane which is only for liquid to pass through is provided on the through hole 14, when the diaphragm plate When the card 7 is inserted into the card slot 12, the connecting channel and the through hole 14 on the diaphragm plate 7 constitute the only path for realizing the liquid flow among the sample slot 8, the first collection slot 9 and the second collection slot 6; the body is also provided with a first slot 11 and a second slot 13 for inserting the first electrode 10 and the second electrode 5, the first slot 11 is provided in a position that when the first electrode 10 is placed in the first slot 11, the test end of the first electrode 10 can contact the auxiliary agent in the first collection slot 9, and the second slot 13 is provided in a position that when the second electrode 5 is placed in the second slot 13, the test end of the second electrode 5 can contact the auxiliary agent in the second collection slot 6;

[0021] The cover plate 2 can completely cover the openings of the sample slot 8, the first collection slot 9 and the second collection slot 6 on the electrolytic cell 1. A through slot 4 for the diaphragm plate 7 to pass through the cover plate 2 is opened at the position corresponding to the card slot 12 on the cover plate 2, and an exhaust hole 3 is also opened on the cover plate 2.

[0022] In the device of the present invention, the shapes of the sample slot 8, the first collection slot 9 and the second collection slot 6 can be designed as needed, and can be square slots, cylindrical slots and other regular slots; preferably, the sample slot 8, the first collection slot 9 and the second collection slot 6 are square slots or cylindrical slots, and at this time, it is more preferred that the center lines of the sample slot 8, the first collection slot 9 and the second collection slot 6 coincide in the horizontal direction. The connecting channel path of the sample slot 8 and the first collection slot 9 and the connecting channel of the sample slot 8 and the second collection slot 6 can be cylindrical, square or other regular shapes. The opening position of the through hole 14 on the diaphragm plate 7 should be that when the diaphragm plate 7 is inserted into the card slot 12, the through hole 14 on the diaphragm plate 7 has at least a part that intersects with the connecting channel, preferably, the through hole 14 on the diaphragm plate 7 is just located within the range covered by the longitudinal section of the connecting channel, or completely coincides with the connecting channel. The isolation membrane can be a PE isolation membrane, a PP isolation membrane or a PET isolation membrane, and the isolation membrane is fixed to the through hole 14 by bonding, or the isolation membrane is used to cover the entire diaphragm plate 7 to achieve the arrangement of the isolation membrane on the diaphragm plate 7. For the adsorption medium, it can be filter paper, fiber or cotton, etc., which can be selected according to needs; in the test of the same batch of samples, the amount of adsorption medium in the first collection tank 9 is preferably kept consistent when each sample is tested, and the amount of adsorption medium in the second collection tank 6 is also kept consistent; for the auxiliary agent, it can be selected according to the common knowledge in the field according to different ore samples, such as when the ore sample is gold ore, chlorobenzene solution can be selected. For the first electrode 10 and the second electrode 5, one is used as the positive electrode and the other is used as the negative electrode, and different types and shapes of electrodes can be selected according to needs.

[0023] The cover plate 2 in the device of the present invention can be made of transparent material (such as organic glass, etc.). The exhaust holes 3 on the cover plate 2 can enable the gas that may be generated during the test to be discharged immediately. The number of exhaust holes 3 can be set as needed, usually 1 to 3.

[0024] The practical application of the device of the present invention is carried out in a uniform electric field environment. In a uniform electric field, the field strength is equal in magnitude and direction. The electric field lines of the uniform electric field are a set of parallel lines with the same density. In a uniform electric field, the force received by the electric charge in this electric field is a constant force, and the charged particles move at a uniform speed in the uniform electric field and migrate in a directional manner. At this time, the equipotential surface of the electric field is perpendicular to the electric field lines. For different samples, in order to better separate ions, the electric field can be made to have a certain elastic force by changing the voltage of the electrode and selecting pulse currents of different frequencies, thereby accelerating the precipitation of complex anions in the test sample and moving them to enrich them at the anode, and collecting them through the adsorption medium of the collecting tank for further analysis.

[0025] In actual application, the samples collected in the prospecting area are first subjected to conventional processing (for soil samples, natural particle size is adopted, and soil of 80 to 120 mesh is collected after sieving as a test sample; for rock samples, they are crushed to 200 mesh as a test sample), and then the sample is placed in the sample slot 8 in the ion adsorption collection device with the diaphragm plate 7 inserted, and additives are added thereto to activate different elements in the sample, so that ions with different adsorption positions in the sample are separated in turn in the electric field environment, and after being enriched by the adsorption medium in the first collection slot 9 and the second collection slot 6, the results of different elemental compositions can be obtained by testing and analyzing the adsorption medium. At the same time, the ions of ore-forming elements and associated elements adsorbed in the sample migrate to the positive and negative electrodes respectively under the action of electric fields of different intensities and frequencies due to different causes (such as different ore-forming backgrounds, different ore-forming ion exchanges, diffusions, and migrations in the deep ore-forming process, and the time of reaching the surface is different, the ion concentrations in different time periods are also different, and the positions or combinations and packaging forms adsorbed on the samples are also different). By connecting to a computer, the changes in different times, voltages, and corresponding currents are automatically recorded, and computer software is used to describe the change laws of different samples to obtain different curves, bar charts, pie charts, scatter distribution diagrams, three-dimensional spatial distribution diagrams, etc. These data provide a basis for the analysis of the migration and enrichment laws of ore deposits formed in different periods, and play a very important role in guiding prospecting prediction. The test time is pre-set according to needs, generally ranging from 1 to 48 hours, and the specific time can be determined in advance through experiments.

[0026] In a specific embodiment, the electrolytic cell 1 and the cover plate 2 are connected by hinges. The sample slot 8, the first collection slot 9 and the second collection slot 6 on the electrolytic cell 1 are all square slots, and the center lines of the sample slot 8, the first collection slot 9 and the second collection slot 6 in the horizontal direction coincide with each other; the end of the first collection slot 9 away from the sample slot 8 extends to the inside of the body in a direction away from the sample slot 8 so that the second collection slot 6 has a part covered by the body, and the end of the second collection slot 6 away from the sample slot 8 extends to the inside of the body in a direction away from the sample slot 8 so that the second collection slot 6 has a part covered by the body; the connecting channels between the sample slot 8 and the first collection slot 9 and between the sample slot 8 and the second collection slot 6 are both cylindrical (i.e., the longitudinal cross section is circular), and when the diaphragm plate 7 is inserted into the card slot 12, the through hole 14 on the diaphragm plate 7 completely coincides with the connecting channel. The isolation membrane is a PE isolation membrane, and the isolation membrane is provided on the diaphragm plate 7 by covering the entire diaphragm plate 7 with the isolation membrane. The first electrode 10 and the second electrode 5 are both sheet electrodes (in this example, the first electrode 10 is the positive electrode and the second electrode 5 is the negative electrode), and the corresponding first slot 11 and second slot 13 are both square slots. The first slot 11 is opened on the body corresponding to the part of the first collection tank 9 covered by the body, and the second slot 13 is opened on the body corresponding to the part of the second collection tank 6 covered by the body. At this time, when the first electrode 10 or the second electrode 5 is placed in the first slot 11 or the second slot 13, the test end of the first electrode 10 or the second electrode 5 can contact the auxiliary agent in the first collection tank 9 or the second collection tank 6. The number of the exhaust holes 3 is 2, which are respectively opened at the corresponding positions of the first collection tank 9 and the second collection tank 6 on the cover plate 2. The adsorption medium adopts filter paper.

[0027] The device shown in the above specific embodiment was used to test the soil collected from the vicinity of the Dajingzi Copper Mine in Chifeng City:

[0028] Three soil samples were collected, namely: Dajingzi Line 15 Sample No. 6, Dajingzi Line 8 Sample No. 52, and Dajingzi Line 6 Sample No. 27.

[0029] First, the collected soil samples are naturally dried and then sieved to collect soil of 80-120 mesh. 10g of the soil is weighed as a sample and placed in the sample slot 8 (just filling the sample slot 8) in the ion adsorption collection device with the diaphragm plate 7 inserted. The adsorption medium is placed in the first collection slot 9 and the second collection slot 6 respectively, and then the auxiliary agent is added to the sample slot 8, so that the auxiliary agent can freely penetrate into the first collection slot 9 and the second collection slot 6 through the connecting channel, the isolation membrane, and the through hole 14 on the diaphragm plate 7 until the auxiliary agent fills the sample slot 8, the first collection slot 9 and the second collection slot 6. Cover the cover plate 2, connect the first electrode 10 and the second electrode 5 to a constant voltage or pulse voltage of 6-15V according to the positive and negative pole marks, and connect to a precise voltage and current measuring instrument at the same time, display and automatically record the three corresponding parameters of time, current and voltage, and automatically save them in real time, so as to facilitate subsequent analysis by inputting them into a computer later. During the test, gas is generated around the sample slot 8, the first collection slot 9, the second collection slot 6, and the first electrode 10 and the second electrode 5, and is discharged through the exhaust hole 3. After the preset test time is reached, the power is turned off, the cover 2 is opened, and the adsorption medium is collected for analysis and testing. After that, the first electrode 10 and the second electrode 5 are taken out and cleaned, and the sample, auxiliary agent, and isolation film are recycled. The entire device is cleaned with water, and then cleaned with pure water and dried for the next sample test.

[0030] Each sample was tested three times in parallel, and a blank control experiment was performed at the same time (i.e., except that the sample slot 8 was not filled with a sample, the rest was the same), and the average value was taken as the test result. The amount of adsorption medium in the first collection slot 9 was kept consistent during each test of each sample, and the amount of adsorption medium in the second collection slot 6 was also kept consistent. The adsorption results of each sample are shown in the following Tables 1 to 3.

[0031] Table 1 Dajingzi 15 line-6 ​​sample adsorption medium test results

[0032]

[0033] Table 2 Dajingzi 8-52 sample adsorption medium test results

[0034]

[0035] Table 3 Dajingzi 6-line-27 sample adsorption medium test results

[0036]

[0037] From the adsorption medium test results of the above three samples, it can be seen that when power is applied to the first collection tank 9 and the second collection tank 6, the adsorption medium in the two collection tanks can adsorb and enrich the metal elements; while in the blank control test, no metal elements are adsorbed on the adsorption medium after power is applied.

Claims

1. An ion adsorption collection device for use in an electrosorption prospecting method, comprising an electrolytic cell (1), characterized in that: The electrolytic cell (1) comprises a body, on which a sample slot (8), a first collecting slot (9) and a second collecting slot (6) are provided, which are interconnected, wherein the sample slot (8) is located between the first collecting slot (9) and the second collecting slot (6); the sample slot (8) is used to place a sample; the first collecting slot (9) and the second collecting slot (6) are both filled with an adsorption medium and an auxiliary agent, wherein the auxiliary agent is a liquid; a slot (12) for placing a diaphragm plate (7) is provided on the connecting channel path between the sample slot (8) and the first collecting slot (9) and the connecting channel path between the sample slot (8) and the second collecting slot (6); the diaphragm plate (7) is provided with a through hole (14) penetrating the thickness thereof, and the through hole (14) is provided with an isolation membrane for only allowing liquid to pass through, and when the diaphragm plate (7) is inserted into the slot (12), the connecting channel and the through hole (14) on the diaphragm plate (7) are connected. 14) constitutes a unique path for realizing liquid circulation among the sample tank (8), the first collection tank (9) and the second collection tank (6); the main body is also provided with a first slot (11) and a second slot (13) for inserting the first electrode (10) and the second electrode (5); the first slot (11) is opened at a position such that when the first electrode (10) is placed in the first slot (11), the test end of the first electrode (10) can contact the auxiliary agent in the first collection tank (9); the second slot (13) is opened at a position such that when the second electrode (5) is placed in the second slot (13), the test end of the second electrode (5) can contact the auxiliary agent in the second collection tank (6); the center lines of the sample tank (8), the first collection tank (9) and the second collection tank (6) in the horizontal direction coincide with each other; the isolation film is a PE isolation film, a PP isolation film or a PET isolation film.

2. The ion adsorption and collection device used in the electro-adsorption prospecting method according to claim 1, characterized in that: The device also includes a cover plate (2) capable of completely covering the openings of the sample slot (8), the first collection slot (9) and the second collection slot (6) on the electrolytic cell (1).

3. The ion adsorption collection device used in the electro-adsorption prospecting method according to claim 2, characterized in that: The cover plate (2) and the electrolytic cell (1) are connected in a detachable manner.

4. The ion adsorption and collection device used in the electro-adsorption prospecting method according to claim 2, characterized in that: A through slot (4) for the diaphragm plate (7) to pass through the cover plate (2) and be inserted into the card slot (12) is provided at a position on the cover plate (2) corresponding to the setting position of the card slot (12).

5. The ion adsorption and collection device used in the electro-adsorption prospecting method according to claim 2, characterized in that: The cover plate (2) is provided with an exhaust hole (3).

6. The ion adsorption and collection device used in the electro-adsorption prospecting method according to claim 5, characterized in that: There are two exhaust holes (3), which are respectively opened at positions on the cover plate (2) corresponding to the first collecting groove (9) and the second collecting groove (6).

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