Some problems in the mineral processing process was put forward and the corresponding techniques such as controlling overload of grinding and crashing,improving size and increasing flotation time etc were dealed with in this paper by the author.Through the reconstruction the flotation and cyanidation are more efficient than before.The flotation recovery is increased 1.43%,and the cyanidation recovery is increased 0.55%,at the same time the agent and energy consumption are decreased for some extent.

置换金泥采用湿法冶炼工艺回收成品金,由于王水渣中金的品位较高,为2000g/t以上,采用返回冶炼流程或直接进入氰化浸出的方法均不能取得较好的指标。在小型试验及半工业试验中,采用先预浸再氰化的方法取得较好的浸出率指标。

because the open-air gold mine of the Hexi near the village,road,and high wire,so we take the trial in it,by trying,we draw the responsible conclusion to parameter o explosion,and draw the responsible conclusion to how.Thereby,we low the shock of explosion,and low the cost of the explosion,the meleage is very obvious in economy and social.

Based on the penetrate into study,the paper systematically analyzed and summarized the application on the cemented stowing of digging groove and clot of injection in the horizontal sub-level mining.According to compare proof by sufficiency ,operating efficiency,intention of labor of cemented stowing,we draw the conclusion that cement stowing of separate wall have a series of advantage,such as facility,high efficiency,good quality,decrease every sub-level mining period and poverty rate etc.There by it is verified that cemented stowing of separate wall is efficacious in the mine that mining method is horizontal sub-level mining.

在对影响采场顶板稳固性因素及采场顶板动态全面分析、深入研究的基础上,提出了联合控顶技术,详细叙述了控制爆破、长锚索、短锚杆及锚网联合控顶技术在蚀变岩型金矿床采场中的实践应用.根据各采场的稳程度将采场进行分类,并针对不同类型的采场,采取与之相适应的控顶技术,有效控制了采场顶板的冒落和塌方,保证了施工作业安全,提高了采矿强度和各项技术经济指标,从而验证了联合控顶技术对蚀变岩型金矿床开采而言,是值得借鉴和推广的.