现代盐湖低钾原卤精准溶矿试验研究--以察尔汗盐湖别勒滩矿区为例

Experimental Study on Precise Dissolution of Low Potassium Raw Brine in Modern Salt Lakes -- Taking the Bieletan Mining Area of Cha"erhan Salt Lake as an Example

中文关键词:  察尔汗盐湖  低品位固体钾盐  精准溶矿  固液转化

英文关键词:Chaerhan Salt Lake  Low grade solid potassium salt  Precise ore dissolution  Solid-liquid conversion

中文摘要:

      本文以浅部固体钾盐为研究对象,尝试利用低钾原卤为溶剂,开展野外固液转化试验,分析其溶矿变化特征。试验结果表明：试验过程中试验区内的水位明显上升,试验后6#采卤渠卤水及探坑涌水中KCl含量上升、NaCl含量下降,原卤质量明显得到提升,表明低钾原卤作为溶剂可以将区域内的固体钾盐转化为液相,由于低钾原卤对于石盐是饱和的,且光卤石溶解过程中会析出石盐矿物,因此试验过程中不会大规模破坏盐层的骨架,因此,不会对采卤设施造成影响,利用低钾原卤作为溶剂进行固液转化是可行的；探坑水位和KCl的含量变化表明矿区不同的区段在地质结构、构造,孔隙度等方面存在较大差异。

英文摘要:

      This article takes shallow solid potassium salts as the research object and attempts to use low potassium original brine as a solvent to conduct field solid-liquid conversion experiments and analyze the characteristics of mineral dissolution changes. The experimental results showed that the water level in the experimental area significantly increased during the experiment. After the experiment, the KCl content in the brine of the 6 # brine extraction channel and the inflow water of the test pit increased, and the NaCl content decreased. The quality of the original brine was significantly improved, indicating that low potassium original brine can be used as a solvent to convert solid potassium salts in the area into liquid phase. Due to the saturation of low potassium original brine for rock salts and the precipitation of rock salt minerals during the dissolution process of carnallite, the skeleton of the salt layer will not be extensively damaged during the experiment. Therefore, it will not affect the brine extraction facilities. It is feasible to use low potassium original brine as a solvent for solid-liquid conversion; The changes in water level and KCl content in the exploration pit indicate significant differences in geological structure, structure, porosity, and other aspects among different sections of the mining area.