Rapid economic evaluation method of ionic adsorption rare earth ore

Abstract

The invention relates to a rapid economic evaluation method of ionic adsorption rare earth ore. The method comprises the following steps: carrying out geological exploration to collect geological survey borehole data and borehole sampling and testing data of a target mine area and establishing an ore deposit borehole database; performing 3D ore body modeling by using the borehole data and performing grade interpolation by using a kriging method to obtain an ore deposit ore body model; performing price sensitivity analysis by acquiring a large quantity of mineral products market data and establishing a mineral product price-boundary grade calculating model; using the model to determining the boundary grade of a specific ore deposit under different market prices and then using the boundary grade to constrain the ore deposit ore body model and to delineate an ore body range, and then performing reserves calculation. According to the change of the market price and the operating cost of the enterprise, the profit and loss balance point is determined according to the basic geologic characteristics of the weathering crust and the distribution of the rare earth elements, and the boundary grade and the industrial grade are determined by comprehensively considering the profit margin and the like. further, computer technology is used for delineating the ore bodies and to calculate the reserves of resources, and providing the basis for the reasonable determination of a mining plan.

Description

technical field [0001] The invention relates to the technical field of mineral exploration, in particular to an exploration and evaluation method for rare earth ore reserves, in particular to an ion-adsorption type rare earth ore rapid economic evaluation method. Background technique [0002] With the gradual expansion of the application field of rare earth, the increasing demand of rare earth market at home and abroad, and the rapid development of the economy of rare earth mining areas, the mining of ion-type rare earth mines has expanded rapidly, and there have been phenomena of waste of resources such as indiscriminate mining, mining of the rich and abandoning the poor. . Therefore, a correct and reasonable assessment of the reserves of rare earth resources will help to scientifically and rationally develop and utilize existing mineral resources, improve resource utilization, classify and check their application status and guarantee capabilities, point out the direction o...

AI Technical Summary

Problems solved by technology

For a long time, the accuracy evaluation of traditional resource reserve estimation methods is mostly done manually, with heavy workload and limited comparison samples

[0006] (2) The traditional method of calculating reserves often regards the cut-off grade as a relatively fixed value, ignoring the influence of multiple cut-off grades due to changes in the market price of mineral resources

Therefore, the traditional reserve estimation is often relatively lagging behind, unable to respond quickly to market price fluctuations, resulting in the inability of mining companies to make accurate economic evaluation and decision-making

In terms of ore deposit grade optimization, domestic and foreign researchers have achieved a series of research results, however, the grade optimization problem is an extremely complex problem, many problems are not studied deeply enough, and there are still many problems to be solved

In the previous studies, the research object was generally set within a certain range (such as the entire ore body), and the sequence of mining in practice could not be well considered, making the optimization results not so true and reliable.

2) The previous method did not combine the spatial distribution of ore body grades, and the maximum present value method was used to optimize the cut-off grade. The grade value showed a downward trend, which was realized under the assumption that the grade distribution remained unchanged, which is unreasonable

3) It is not directly related to the mining method, because the main technical and economic parameters produced by different mining methods are very different, which will also affect the final result of optimization

[0007] (3) Traditional methods are often used to calculate reserves on a two-dimensional plane, and the degree of three-dimensional visualization is low. It is impossible to intuitively express the three-dimensional spatial distribution of ore bodies, the three-dimensional geological characteristics of mines, and the existing mine exploration and mining projects. Instructive is not strong

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