津巴布韦某锂矿重介选矿设计方案研究

随着能源电池等行业的迅猛发展,锂矿石资源的开发利用得到重视,某公司计划在津巴布韦建设一规模为100万t/a的选矿厂,通过试验研究,设计方案采用破碎-两段重介+中矿再碎再选重介分选的工艺流程。设计方案工艺先进可靠,经济效益良好,可为当地带来较好的经济效益和社会效益,有较高的可行性。

广西某洗矿厂浮选脱硅项目设计方案

铝土矿广泛用于精密铸造、炼铝工业、新型材料等领域。随着我国国防、航空、汽车、电器及日化等行业的迅猛发展,对于铝土矿的需求量每年呈现上升的势头。我国国内资源量较少,目前国内铝土矿市场供给长期无法满足旺盛的需求。如何提高中国铝土矿资源保持能力、降低铝土矿的供应风险问题应该给予重视。广西某公司设计启动该公司洗矿厂尾矿浮选脱硅项目,该项目的尽早落实,将增强公司的企业实力,项目生产的铝矿可以增加我国的物资储备,增加铝加工行业的原料来源,对行业发展有积极的意义。对该洗矿厂尾矿的浮选脱硅项目设计进行了简述。

浅析赞比亚某铜矿选矿工程项目设计方案

铜资源是国民经济持续发展的物质基础之一。对赞比亚某铜矿的选矿工程设计进行了介绍,研究了该矿的矿石性质、矿物嵌布特征等,确定了选厂设计方案。根据矿石工艺指标设计了工艺流程,选定了选矿设备。设计的选别工艺成功回收了该矿石中的铜精矿,精矿产率、品位、回收率均较理想。

Investigation of the performance of the dish/stirling solar thermal electricity system

A dish/stifling solar thermal electricity system consists of two parts： a dish solar concentrator and a Stifling engine. For optimizing the system, in this paper, the mathematical model for concentrator design was established and the effects of those design parameters of concentrator, such as the size and intensity of the focal point, the receiver temperature, on the efficiency of the Stifling engine and output power were numerically simulated. The results of the simulation revealed a close relationship between power and efficiency because of power losses, and there was a maximum for the engine efficiency and power with increasing solar radiation because there was a peak value of system efficiency with increasing receiver temperature. So, in view of our Stifling engine, the 450 rim angle and 6m focal length are optimal design for concentrator and the 800℃receiver temperature is best.