对地浸采铀常用参数的认识及应用——问题和建议

Understanding and application of commonly used parameters for in-situ leach mining uranium-Problems and proposals

在无规范和标准的情况下,由于对一些常用概念的理解存在偏差,试验和报告的编写中经常出现异议甚至错误,诸如浸出面积、有效厚度、液固体积质量比、渗透率等的计算和换算,这些参数的使用条件等问题尚需斟酌、推敲和改进。研究认为,浸出面积计算的几何面积法易达成共识;厚度扩散法和系数法计算有效厚度应用广泛,易于对比;受众多因素影响的液固体积质量比不宜作为判断矿床浸出状况的参数;渗透率等参数在地浸采铀领域应用时应统一到渗透系数的概念上来。

As lack of standards and regulations as well as difference in understanding for some com- monly used concepts, mistakes are often found in test reports, for example the calculation and conver- sion for leaching area, calculation of effective thickness, evaluation of liquid-solid ratio, conversion of percolation rate, furthermore the application conditions should be elaborated, discussed and improved. From investigation, geometrical area can be accepted for leaching area calculation, the way of disper- sion and coefficient are appropriated to calculate effective thickness, easy comparison as well, whereas the liquid-solid ratio influenced by so many factors is not suggested to take as a parameter for evalua- tion of deposit leaching behavior, the percolation rate should be consistent with permeability.