Leaching range monitoring method in in-situ leaching uranium mining process
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An in-situ leaching and uranium mining technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as difficult control, blind construction, raw material waste and leaching range, etc., to save production costs and control pollution Diffusion and consumption reduction effects
Inactive Publication Date: 2016-06-01
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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Problems solved by technology
In the previous experiments and production, these indicators could not be accurately measured or predicted, so to a large extent, there were certain phenomena of blind construction, waste of raw materials and difficult control of the leaching range in the leaching process.
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Embodiment 1
[0044] The C10 mining area of a certain uranium mine in Xinjiang adopted the method for monitoring the leaching range in uranium mining by in-situ leaching described in the present invention, and established a numerical model of the C10 mining area by using VisualModflow software. Methanol was used as a tracer in the test and production units Conduct cross-well tracer test. Specifically include the following steps:
[0045] Step (1) establishes numerical model with computer numerical simulation software, and it comprises 4 steps
[0046] (1.1) Model generalization;
[0047] Reasonably generalize the hydrogeological conditions of the in-situ leaching uranium mining test and production area, that is, transform the actual boundary properties, internal structure, permeability, hydraulic characteristics, and recharge and discharge concepts of the aquifer into basic concepts that are convenient for mathematical and physical simulations. Model,
[0048] (1.2) Model numericalizat...
Embodiment 2
[0076] The C10 mining area of a certain uranium mine in Xinjiang adopted the method for monitoring the leaching range in uranium in situ leaching mining according to the present invention, and established a numerical model of the C10 mining area by using VisualModflow software. The production unit conducts cross-well tracer test. Specifically include the following steps:
[0077] Step (1) establishes numerical model with computer numerical simulation software, and it comprises 4 steps
[0078] (1.1) Model generalization;
[0079] Reasonably generalize the hydrogeological conditions of the in-situ leaching uranium mining test and production area, that is, transform the actual boundary properties, internal structure, permeability, hydraulic characteristics, and recharge and discharge concepts of the aquifer into basic concepts that are convenient for mathematical and physical simulations. Model,
[0080] (1.2) Model numericalization;
[0081] Convert the basic model of ste...
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Abstract
The invention provides a leaching range monitoring method in an in-situ leaching uranium mining process. The monitoring method includes the steps that 1, a numerical model is established through computer numerical simulation software, wherein the steps of conducting model generalization, conducting model numeralization, establishing the numerical model, correcting the numerical model and designing a drill hole arrangement mode are included; 2, interwell tracer tests are conducted on a test unit and a production unit, wherein the steps of selecting a tracer agent, calculating feeding quantity of the tracer agent, feeding and sampling the tracer agent, conducting concentration analysis on the tracer agent, analyzing tracer agent test data and simulating numerical values are included. According to the monitoring method, an interwell tracer method is introduced to the leaching uranium mining process, a numerical value simulation technology is utilized, estimation, monitoring and predicting of the flow direction, the flow rate and the leaching range of a leaching solution are achieved through numerical value simulation of the flow direction, the flow rate and the diffusion range of a groundwater flow field and the tracer agent, accordingly in-situ leaching tests and drill hole arrangement in production are guided, consumption of raw materials is greatly lowered, production cost is saved, and dispersal of pollution to in-situ leaching mine is controlled.
Description
technical field [0001] The invention relates to a method for monitoring the leaching range of in-situ leaching (hereinafter referred to as in-situ leaching) in uranium mining by interwell tracing and computer numerical simulation technology. Background technique [0002] In situ leaching uranium production test, flow direction, flow rate and leaching range of leaching liquid in production are all very important technical indicators. Both are important data that must be calculated. In the previous experiments and production, these indicators could not be accurately measured or predicted, so to a large extent, there were certain phenomena of blind construction, waste of raw materials and difficult control of the leaching range in the leaching process. Contents of the invention [0003] The object of the present invention is to provide a method for monitoring the leaching range in in-situ leaching mining of uranium, which is used for predicting and estimating the leaching ra...
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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 王晓东谭亚辉谢廷婷段柏山李德杨立志甘楠吴黎武于长贵
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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