Technology Research Of Dynamic Dissolving Potassium Supplement The Brine Of Salt Mine

Qaidam basin accounted for over 95% of the total output in China, potash, influence the food security of our country is a very important national strategic material, ensure the local potash production of national strategic significance. But after years of mining, brine mines because falling too fast, the liquid potash salt layer condenses into inaccessible solid state, seriously restricts the development of the region’s economy. Supplementary dynamic soluble potash salt lake brine is a salt lake in the htac technology difficulties in the development.Research in qinghai mohair low grade potassium mineral as the research object, from potassium of comprehensive utilization of resources, reduce the cost of perspective, using dynamic horizontal tube fill halide, through indoor single factor study determination halide speed, amount of halogen tonic, brine extraction velocity effect on the potassium in the salt dissolved; Indoor orthogonal test to determine additions to the technical parameters of dynamic soluble potash salt lake brine; Yantian demonstration site test for correction and improvement of technical parameters of orthogonal test to establish supplementary low grade potassium ore double well tube filling mining technique, the demonstration pilot project of yantian in the salt lake brine potassium chloride content up to 1.2%.Research shows that the dissolving effect of potassium salt mine in the relationship with the filling speed of halogen is within a certain range, with the increase of flow velocity, when fill halide speed reaches a certain value, dissolving effect no longer increases, even falling; Fill halide amount of potassium in salt dissolving effect similar to fill halide speed; Brine extraction rate of potassium in salt dissolving little impact; And the needed for dissolving potassium solution is obtained and the volume of salt mine is 0.62. Initially set the technical parameters of dynamic dissolving potassium ore to fill halide speed 100 m·h-1, brine extraction speed 125m·h-1.