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通过实验,研究了钙芒硝在水溶过程中结构上的细观变化。实验结果分析,得出了以下结论:钙芒硝的水溶过程既包含晶体的溶解过程也包含晶体的析出过程;溶液是顺着裂隙进行渗流的,并首先溶解裂隙处的钙芒硝,钙芒硝溶解后空出一定的空间,然后溶液再顺着所产生的空间向裂隙周围流动;水溶后的固体残留物可以认为是多孔介质,其渗透性和力学特性在不断的变化;水溶过程中,溶液在钙芒硝矿石中的流动可以认为是溶液在多孔介质中的渗流;溶质在溶液中的运输过程可以看成是溶质在溶液中的扩散过程。
Through the experiment, the microscopic changes of the structure of glauberite during water-dissolving process were studied. The experimental results show that the water solution process of glauberite not only includes the process of crystal dissolution but also the precipitation of crystals. The solution permeates along the fracture and dissolves the glauberite and glauberite in the fracture first Empty space, and then the solution and then along the space generated by the fissure around the flow; solid residues after water-soluble can be considered as a porous medium, the permeability and mechanical properties of the continuous changes; water-soluble process, the solution in the calcium The flow in the mirabilite ore can be regarded as the seepage of the solution in the porous medium. The solute transport in the solution can be regarded as the diffusion process of the solute in the solution.