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得克萨斯湾公司附属埃克斯托尔(Ecstall)矿业有限公司的基德-克里克(Kidd Greck)矿的基本金属矿处理量为10000吨/日,该矿处理两种不同类型的矿石:铜-锌矿石和锌-铅-银矿石。在高度自动化的埃克斯托尔公司的选厂中,矿石分别在三个系统中通过优先浮选进行选别。其中一个最重要的生产过程控制设备就是一套取样系统并配以X射线连续分析系统。近来,这一系统又添置了对两个铜-锌浮选系统浮选药剂的计算机控制使其进一步自动化。利用最优搜索法以及冶炼厂合同条款所编制的计算机程序已使铜回收率增加0.8％,锌回收率增加1.6％,药剂成本降低12％。虽然未曾预料,但铜精矿和锌精矿的品位都已有适当的提高。
The base metal mine at Ecstall Mines Limited, a Texas-based company, has a base metal mine capacity of 10,000 tons / day and handles two different types of ore: copper - Zinc ore and zinc - lead - silver ore. In the highly automated Exxon plant, the ore is sorted by preferential flotation in three separate systems. One of the most important production process control devices is a sampling system with an X-ray continuous analysis system. More recently, this system has added to the computerization of two copper-zinc flotation system flotation reagents to further automate it. The computer program, compiled using the optimal search method and smelter contract terms, has resulted in a 0.8% increase in copper recovery, a 1.6% increase in zinc recovery and a 12% reduction in the cost of pharmaceuticals. Although unforeseen, the grades of copper concentrates and zinc concentrates have been appropriately increased.