Method for optimizing mineral separation technology based on partial factor design and response surface method

Abstract

The invention discloses a method for optimizing a mineral separation technology based on partial factor design and a response surface method. The method comprises the steps: crushing an ore sample, uniformly mixing, grinding and carrying out characterization analysis; selecting factors influencing the mineral separation indexes as investigation factors according to analysis, and meanwhile, determining the mineral separation indexes according to actual tests; taking the investigation factors as independent variables and the mineral separation indexes as dependent variables, performing design by adopting a partial factor method, and performing variance and significance analysis after a mineral separation test; according to an analysis result, selecting factors with high significance as the independent variables and the mineral separation indexes as the dependent variables to establish a response curved surface model Y, testing, fitting the Y according to a test result to obtain a determined response curved surface model Y', and globally optimizing the Y' to obtain an optimal index of the independent variables; and selecting the optimal independent variable index and the factor center value of the unselected independent variables as the operation condition of the mineral separation technology. The method has the characteristics of simplicity in operation, few test times, capability of effectively realizing optimization of mineral separation process conditions and the like.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a method for optimizing mineral processing technology based on partial factor design and response surface method. Background technique [0002] Mineral dressing is based on the physical and chemical properties of different minerals in the ore. After the ore is crushed and ground, gravity separation, flotation, magnetic separation, electric separation, etc. are used to separate the useful minerals from the gangue minerals. A process in which symbiotic (associated) useful minerals are separated from each other as much as possible, and harmful impurities are removed or reduced to obtain raw materials for smelting or other industries. Mineral dressing can enrich useful components in minerals, reduce fuel consumption in smelting or other processing processes, reduce transportation costs, reduce further processing difficulties, reduce processing costs, enable low...

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Problems solved by technology

In addition, with the increase of the selected factors, such as the single response surface method after the test, the difficulty of the response surface analysis and the fitting operation of the response surface model increases exponentially, which seriously affects the economy of the mineral processing test and the progress of the mineral processing, so it is only applicable Optimization of beneficiation process for specific minerals with few influencing factors

In the prior art, in order to reduce the number of tests and operational difficulty of the response surface method, a limited number of beneficiation factors are generally selected as independent variables of the response surface method based on experience, but there is a strong correlation between the optimization effect and the experience of the operator, and human factors Larger, the factors that can be considered in the actual situation are relatively limited, resulting in more uncertain factors in the optimized process and lower reliability of the process

Therefore, when there are many factors, it is not realistic to use a single optimization model to optimize the beneficiation process conditions reasonably and comprehensively.

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