CN102253099A - Multifunctional automatic control column leaching experimental facility - Google Patents
Multifunctional automatic control column leaching experimental facility Download PDFInfo
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- CN102253099A CN102253099A CN2011100962741A CN201110096274A CN102253099A CN 102253099 A CN102253099 A CN 102253099A CN 2011100962741 A CN2011100962741 A CN 2011100962741A CN 201110096274 A CN201110096274 A CN 201110096274A CN 102253099 A CN102253099 A CN 102253099A
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Abstract
The invention discloses a multifunctional automatic control column leaching experimental facility, belonging to the field of leaching mining. The experimental facility mainly comprises a liquid circulation system, a water circulation system, an air circulation system, an automatic control system and a data collection system. The liquid circulation system is composed of a reaction column, a high-level tank and a liquid receiving tank; the water circulation system is composed of a hot water tank, a solenoid valve, a liquid receiving tank jacket, a reaction column jacket and a high-level tank jacket; the air circulation system is composed of an air compressor, an air flowmeter and a control valve; the automatic control system is used for automatically regulating and controlling the temperature of the leaching system, oxygen solubility and solution flowing; the data collection system can be used for automatically collecting and storing the solution pH value, the oxygen solubility, electric potential, the temperature and other parameters in real time. The experimental facility can be used for performing indoor simulation experiments and semi-industrial scale pilot plant experiments according to heap-leaching field conditions and actual size of mineral particles, effectively simulating the multiphase and multilevel seepage state of ore bulk and a microbiological leaching and biochemical process, and providing basic data for heap-leaching production practice and technological parameter optimization.
Description
Technical field
The invention belongs to the solution mining field, specially refer to a kind of multi-functional automatic control leaching test device.
Background technology
Solution mining is to utilize some chemical solvent and microorganism, dissolve, leach and reclaim a kind of mining methods of useful component in mineral deposit, ore or the barren rock selectively, compare with traditional recovery method, the most outstanding characteristics of solution mining can reclaim middle-size and small-size mineral deposit resource, complicated difficult ore, poor value exactly effectively, even can processing list outer ore, residual ore deposit, mine tailing and barren rock, for example: the copper mine stone grade that the U.S. adopts dump leaching to handle is low to 0.04%.In addition, low, the environmental friendliness of solution mining explained hereafter cost is described as the green production technique of metallic ore, and at present, 25% bronze medal, 20% uranium are from production by dissolving and leaching process in the world.
The dump leaching system is heterogeneous many coexistences of a complexity, coefficient system, for a long time, domestic and international researcher generally will leach the ore deposit heap and ore body is considered as "black box", instrument is paid close attention to the variation that flows into and flow out bulk parameters such as solution chemistry composition and concentration, lack simulation heap leaching process combined test apparatus, interaction of multiphase medium process in the leaching system is not furtherd investigate.
Summary of the invention
The present invention is a kind of multi-functional automatic control leaching test device.Purpose is in order to research solution mining heterogeneous, many, multifactor coupling process, discloses the response mechanism of leaching system under heterogeneous many field conditions, to improve the leaching rate and the leaching rate of an ore deposit rock prose style free from parallelism.
A kind of multi-functional automatic control leaching test device mainly comprises: fluid circulation, water circulation system, the gas circulation system, automatic control system, data acquisition system (DAS).
Fluid circulation comprises high level tank 1, flowmeter 14, reaction column 2, connects flow container 3, acidproof ebullator 8, high level tank 1, reaction column 2, connects flow container 3 equal strap clamp covers, and three chucks communicate by pipeline, can carry out water cycle with the control temperature of reaction system.The material of tank body is stainless steel SUS316L, has very strong corrosion resistance, and the chuck material is stainless steel SUS304.Reaction column 2 has higher intensity, and guaranteeing after filling ore not can deformation failure; Be equipped with one on the reaction column and observe visor 17 and a glass tube liquid level sight gauge 16; The upper, middle and lower of reaction column cylinder are provided with three solid-liquid sample taps 13; Middle sample tap can be used as the air intake opening of reaction column, and the outside is equipped with gas meter 15 and is linked to each other with air compressor machine 7; Temperature sensor 9 is equipped with in reaction column cylinder bottom.14 1 in anti-acid flowmeter is equipped with at high level tank 1 fluid switch place, links to each other with reaction column 2; The bottom is provided with air intake opening, is connected with air compressor machine 7, can aeration in jar; Temperature sensor 9 also is equipped with in high level tank tank body bottom.Connect flow container 3 bottoms and be provided with air intake opening, can solution aerating in jar by air compressor machine, in addition, connect the flow container tank body temperature sensor 9, pH electrode 10, dissolved oxygen electrode 11, oxidation-reduction electrode 12 also are housed, can realize jar real-time automatic collecting of interior solution correlation parameter.Acidproof ebullator 8 is installed between the pipeline that connects flow container 3 and high level tank 1.
Water circulation system by boiler 4, solenoid valve 18, connect flow container 3 chucks, reaction column 2 chucks and high level tank 1 chuck and constitute.Temperature sensor, well heater, automatic water-replenishing device, ebullator are housed in the boiler 4.After water temperature was heated to uniform temperature in the boiler, through ebullator and solenoid valve 18, successively flowing through connect flow container 3 chucks, reaction column 2 chucks and high level tank 1 chuck, gets back to boiler at last.Therefore, can be by setting water temperature in the boiler, the control that realizes leaching system temperature.
The gas circulation system is made up of air compressor 7, gas meter 15, pressurized air is behind air compressor machine 7, can enter reaction column 2 respectively, connect flow container 3, high level tank 1, gas meter 15 is installed between air compressor machine 7 and the reaction column air intake opening 13, the aerating speed of may command reaction column 2.
Control system is made up of spot sensor, transmitter, controller 6, display instrument 5, communication system.Can realize the online auto monitoring of temperature, pH value of solution value, concentration of oxygen gas, current potential, to leaching system temperature, solution round-robin monitoring and control automatically automatically.
Data acquisition system (DAS) comprises that process flow diagram, panel board, real-time curve, operation, history curve, history report, warning processing and system withdraw from.Can show the technological process of whole leaching system, realize the demonstration of automatic control system and the real-time collection and the storage of operation and spot sensor data.
The present invention soaks test unit for a kind of multi-functional automatic control post, can simulate heap leaching process gas-liquid two-phase seepage flow, ore deposit rock leaching physical and chemical process by this device, factors such as integrated survey temperature, bacterial concentration, oxidation-reduction potential, concentration of oxygen gas are to the rule that influences of ore deposit rock leaching process, may ultimately reach to optimize to leach environment, improve the ore-leaching bacteria activity, improve the purpose of mineral leaching rate.
Use the present invention to simulate ore deposit rock prose style free from parallelism microorganism leaching process, but monitoring reaction system temperature, pH value of solution value, current potential, concentration of oxygen gas, and the regulation and control that can realize leaching system pH, temperature, dissolved oxygen amount.This apparatus function is various, automaticity is high, can simulate the heterogeneous multistage seepage flow of leaching process, ore deposit rock prose style free from parallelism microorganism and leach biochemical reaction process, for disclosing the fine sight environment of leaching system, growth of microorganism breeding, soaking the ore deposit course of reaction basic technical guarantee is provided.
Description of drawings
Fig. 1 soaks the schematic flow sheet of test unit for multi-functional automatic control post.
The 1-high level tank, the 2-reaction column, 3-connects flow container, the 4-boiler, 5-display instrument, 6-controller, the 7-air compressor machine, the acidproof ebullator of 8-, 9-temperature sensor, the 10-pH electrode, 11-dissolved oxygen electrode, 12-oxidation-reduction electrode, the 13-sample tap, 14-liquid flowmeter, 15-gas meter, 16-liquid level sight gauge, 17-observation panel, 18-solenoid valve
Embodiment
Below the present invention is described further, but protection scope of the present invention is not limited to the following scope of describing embodiment.
As Fig. 1, apparatus main body comprises high level tank 1, reaction column 2, connects flow container 3, boiler 4, display instrument 5, controller 6, air compressor machine 7.Below in conjunction with case introduction the specific embodiment of the present invention.
Get certain copper sulfide ore as test specimen, carry out the microorganism leaching test.
(1) ore is prepared: behind certain particle size, pack in the reaction column ore reduction into sealing sample tap 13 by the sample tap on the reaction column 2 13.
(2) temperature adjusting: controller 6 is set the water temperature of boiler 4, well heater is started working, recirculated water begins to heat up, when temperature reaches the water tank design temperature in the boiler 4, by automatic control system well heater cuts out, by ebullator water is pumped into and connect flow container 3 chucks, flow through again reaction column 2 chucks, high level tank 1 chuck, get back to boiler 3 at last, form the water cycle heat-insulation system, make temperature of reaction system reach design temperature.Solution is prepared: leaching solution is packed into to be connect in the flow container 3, and display instrument 5 can read the measured value of the temperature sensor 9 that connects on the flow container 3, pH electrode 10, dissolved oxygen electrode 11, oxidation-reduction electrode 12 automatically, by adding H
2SO
4, Fe
3+, measures such as ore-leaching bacteria, inflation regulate the leaching solution parameters.
(3) leach beginning: by the acidproof ebullator 8 of controller 6 controls, leaching solution is pumped in the high level tank 1, acidproof flowmeter 14 is housed with control leaching solution flow velocity between high level tank 1 and the reaction column 2, the flow control scope is generally 0.02-0.6m
3/ h, open flowmeter 14, leaching solution enters reaction column 2 and with the ore deposit rock reaction takes place to leach, and can observe post internal reaction situation by observation panel 17, by liquid level in the liquid level sight gauge 16 may observe posts, also can take out ore deposit rock and solution in the process of the test by sample tap 13, with mineralogical composition situation of change in the assay determination tool, leachate flow through reaction column and react with the ore deposit rock after, get back to connecing in the flow container 3, just finished whole leaching cyclic process, then can carry out next round and leach circulation.
(4) gas circulation: in leaching course of reaction,, open air compressor machine 7 when dissolved oxygen amount can not satisfy the ore-leaching bacteria needs, in jar, be pressed into air, increase dissolved oxygen amount, in the tool, in air compressor machine leads to the branch road of reaction column, a gas meter 15 is housed, enters flow in the reaction column with control.
(5) parameter monitoring: by being installed in high level tank 1, reaction column 2, connecing temperature sensor 9, pH electrode 10, dissolved oxygen electrode 11, oxidation-reduction electrode 12 on the flow container 3, can realize temperature, pH value, concentration of oxygen gas, the isoparametric automatic collection of current potential in the leaching system, and be stored in display instrument 5.
Claims (6)
1. a multi-functional automatic control post soaks test unit, and its feature comprises: fluid circulation, water circulation system, the gas circulation system, automatic control system, data acquisition system (DAS); Described fluid circulation by high level tank (1), reaction column (2), connect flow container (3) and form; Described water circulation system by boiler (4), solenoid valve (18), connect flow container (3) chuck, reaction column (2) chuck and high level tank (1) chuck and form; The described gas circulation system is made up of air compressor (7), gas meter (15); Described automatic control system is made up of spot sensor, transmitter, controller (6), display instrument (5), communication system; Described data acquisition system (DAS) comprises that process flow diagram, panel board, real-time curve, operation, history curve, history report, warning processing and system withdraw from;
In the described fluid circulation, high level tank (1) links to each other with reaction column (2) on frame, and reaction column (2) is connected with the flow container (3) that connects that is placed on frame lower again; One acidproof liquid flowmeter (14) is housed between high level tank (1) and the reaction column (2); Connect between flow container (3) and the high level tank (1) acidproof ebullator (8) is housed;
In the described water circulation system, the external solenoid valve of boiler (4) (18), solenoid valve (18) is connected to and connects flow container (3) chuck, connect flow container (3) chuck and be connected to reaction column (2) chuck, reaction column (2) chuck is connected to high level tank (1) chuck, and last high level tank (1) chuck and boiler (4) are connected to form the loop;
In the described gas circulation system, air compressor machine (7) respectively with high level tank (1), reaction column (2), connect flow container (3) and link to each other, between air compressor machine (7) and the reaction column (2) gas meter (15) is housed.
2. multi-functional automatic control post according to claim 1 soaks experimental provision, it is characterized in that: described high level tank (1), reaction column (2), connect flow container (3) chuck is all arranged, regulate by recirculated water in the chuck and leach system temperature; The tank body material is stainless steel SUS316L, and the chuck material is stainless steel SUS304; Temperature sensor (9) all is housed on the jar.
3. multi-functional automatic control post according to claim 1 soaks experimental provision, it is characterized in that: be equipped with one on described reaction column (2) cylinder and observe a visor (17) and a liquid level sight gauge (16); Cylinder is provided with three solid-liquid sample taps (13).
4. multi-functional automatic control post according to claim 1 soaks experimental provision, it is characterized in that: temperature sensor (9), pH electrode (10), dissolved oxygen electrode (11) and oxidation-reduction electrode (12) are equipped with in described flow container (3) bottom that connects.
5. multi-functional automatic control post according to claim 1 soaks experimental provision, it is characterized in that: described solenoid valve (18) links to each other with controller (6) by circuit, by controller (6) control automatically.
6. multi-functional automatic control post according to claim 3 soaks experimental provision, and it is characterized in that: described boiler is equipped with temperature sensor, well heater, automatic water-replenishing device, ebullator in (4).
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560099A (en) * | 2012-02-14 | 2012-07-11 | 南华大学 | Tandem column soak test device |
| CN105301201A (en) * | 2015-11-16 | 2016-02-03 | 辽宁工程技术大学 | Testing system for leaching characteristic of solid waste pollutants under gas-liquid synergistic effect |
| WO2017197540A1 (en) * | 2016-05-20 | 2017-11-23 | Quantum Matrix Spa | Recovery of a metal from primary and secondary sulphurated minerals and oxidised minerals, and other compositions of valuable minerals |
| CN107460349A (en) * | 2017-07-06 | 2017-12-12 | 核工业北京化工冶金研究院 | A kind of in-situ acid uranium leaching laboratory simulation device and test method |
| CN108267558A (en) * | 2018-01-19 | 2018-07-10 | 五矿勘查开发有限公司 | Water environment monitoring device and method |
| CN109738504A (en) * | 2018-12-13 | 2019-05-10 | 核工业北京化工冶金研究院 | Pressure leaching experimental rig and method are soaked a kind ofly |
| CN111157423A (en) * | 2020-01-03 | 2020-05-15 | 北京科技大学 | In-situ real-time representation device and method for liquid holdup of ore heap |
| CN111826520A (en) * | 2020-06-28 | 2020-10-27 | 北京科技大学 | Experimental device and method for reinforcing copper sulfide ore leaching by using seawater-based solution |
| CN111855902A (en) * | 2020-06-28 | 2020-10-30 | 北京科技大学 | Experimental device and method for simulating in-situ fluidized mining of deep metal ore |
| CN114062651A (en) * | 2021-11-03 | 2022-02-18 | 中能化江苏地质矿产设计研究院有限公司 | Device and method for testing gangue leaching toxicity under multi-field coupling effect |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560099B (en) * | 2012-02-14 | 2013-05-22 | 南华大学 | Tandem column soak test device |
| CN102560099A (en) * | 2012-02-14 | 2012-07-11 | 南华大学 | Tandem column soak test device |
| CN105301201A (en) * | 2015-11-16 | 2016-02-03 | 辽宁工程技术大学 | Testing system for leaching characteristic of solid waste pollutants under gas-liquid synergistic effect |
| CN105301201B (en) * | 2015-11-16 | 2017-04-05 | 辽宁工程技术大学 | Noxious waste pollution thing leaching characteristic pilot system under a kind of gas-liquid synergism |
| US11021801B2 (en) | 2016-05-20 | 2021-06-01 | Quantum Matrix Spa | Recovery of a metal from primary and secondary sulphurated minerals and oxidized minerals, and other compositions of valuable minerals |
| WO2017197540A1 (en) * | 2016-05-20 | 2017-11-23 | Quantum Matrix Spa | Recovery of a metal from primary and secondary sulphurated minerals and oxidised minerals, and other compositions of valuable minerals |
| CN107460349A (en) * | 2017-07-06 | 2017-12-12 | 核工业北京化工冶金研究院 | A kind of in-situ acid uranium leaching laboratory simulation device and test method |
| CN108267558A (en) * | 2018-01-19 | 2018-07-10 | 五矿勘查开发有限公司 | Water environment monitoring device and method |
| CN109738504A (en) * | 2018-12-13 | 2019-05-10 | 核工业北京化工冶金研究院 | Pressure leaching experimental rig and method are soaked a kind ofly |
| CN111157423A (en) * | 2020-01-03 | 2020-05-15 | 北京科技大学 | In-situ real-time representation device and method for liquid holdup of ore heap |
| CN111826520A (en) * | 2020-06-28 | 2020-10-27 | 北京科技大学 | Experimental device and method for reinforcing copper sulfide ore leaching by using seawater-based solution |
| CN111855902A (en) * | 2020-06-28 | 2020-10-30 | 北京科技大学 | Experimental device and method for simulating in-situ fluidized mining of deep metal ore |
| CN111826520B (en) * | 2020-06-28 | 2021-04-20 | 北京科技大学 | Experimental device and method for reinforcing copper sulfide ore leaching by using seawater-based solution |
| CN114062651A (en) * | 2021-11-03 | 2022-02-18 | 中能化江苏地质矿产设计研究院有限公司 | Device and method for testing gangue leaching toxicity under multi-field coupling effect |
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Application publication date: 20111123 |