Study On Water Ore-breaking And Flotation Behavior Of A Copper And Zinc Mine In Inner Mongolia

The deposit of a copper-zinc ore mine in Inner Mongolia is large,the main metal grades such as lead,zinc and sulfur are high,and the content of valuable elements in the ore is relatively high,which makes the copper-zinc polymetallic mineral resources have extremely high development and utilization value.The plant adopts the“copper-lead mixed float-copper-lead separation-partial mixed flotation process of copper-lead mixed tailings zinc-sulfur separation”to sort and obtain a single concentrate with high grades such as copper and zinc.The valuable elements in the ore have been recovered to some extent,and the recovery rate of the obtained zinc concentrate is also high,but the copper ore dressing recovery rate is low.This paper introduces high-pressure water jet technology,which is applied to the pulverization of copper-zinc ore minerals,and compared with the traditional ball mill pulverization in ore dressing,to find out whether water jet pulverizing copper-zinc ore can obtain excellent results.The main experiments of water jet and ball mill flotation and related mechanism research were carried out.The paper studied the effect of grinding on flotation behavior,and used different grinding methods to pulverize pure copper and zinc minerals.The differences in grinding effect between water jet pulverization technology and traditional ball milling technology were discussed.Contrast water jet and ball mill to crush pure chalcopyrite and sphalerite,compare the surface morphology of minerals with pure copper and pure zinc minerals crushed by two kinds of pulverization methods,and compare the difference of surface elements to explore different smashing methods for minerals.The influence of the surface.The effect of grinding method on the action of inhibitor and sphalerite was investigated by pure mineral flotation test.The product formed on the surface of sphalerite and the inhibitors ZnSO₄ and Na₂SO₃ was analyzed by Raman spectroscopy.It is found that the energy spectrum analysis of sphalerite reveals that in addition to the S and Zn elements required for ZnS,there are a large number of O and Fe elements present in the floc.It can be speculated that many particles are formed on the surface of the ball-milled sphale zinc mineral.Hydrophilic substances such as Fe?OH?₃ and Fe?OH?₂,which are not uniform in size and which are significantly different from mineral surface components,are not conducive to subsequent flotation.Through the Raman spectroscopy experiment and flotation experiment,the sphalerite product and the inhibitor produced by the water jet grinding method are more obvious.The mineral surface characteristic peak of the sphalerite is weakened or covered,indicating that the mineral surface inhibitory substance ZnSO₄ and Covered with ZnSO₃ film.The application of high-pressure water jet pulverization technology in copper-zinc co-contained sulphide ore,so that the mineral extends from the natural grain boundary cleavage surface.Compared with the traditional iron medium ball milling technology,the high-pressure water jet pulverization technology makes the mineral monomer dissociation degree.Further improve.The high-pressure water jet pulverization technology has a good effect because of the short pulverization time and the absence of medium other than water in the grinding process,resulting in less destruction of the mineral interface.