论文部分内容阅读
緒言随着国民經济对各种各样金屬和矿物原料日益增長的需要,进一步地扩大了选矿的应用范圍和加速了它的进步。姑且不談现今选矿厂中处理着的成千万吨的有色金屬矿、稀有金屬矿和貴金屬矿,在处理黑色金屬矿方面,各种各样选矿过程的应用也都在迅速地发展着。例如在苏联,1955年被开采出来的黑色金屬矿,其中有30～35％經过选矿处理,而接近1960年时,將有70％以上的黑色金屬矿要在选矿厂中处理。选矿的进步是和利用貧矿,对貧矿进行綜合利用以及选矿与化学工艺联合流程的应用相連系着的。在苏联邱罗黑达依洛白钨矿选矿厂中,掌握
INTRODUCTION With the growing national demand for a wide range of metals and mineral raw materials, the application of beneficiation has been further expanded and its progress accelerated. Regardless of the tens of millions of tons of non-ferrous, non-ferrous and precious metals mined in the concentrator today, the application of various beneficiation processes has also been rapidly developed to deal with ferrous metal mines. For example, in the Soviet Union, 30 to 35 percent of the ferrous metal mined in 1955 was beneficiated, and as of 1960, more than 70 percent of the ferrous metal mines will be treated in the concentrator. Progress in beneficiation is linked to the use of lean ore, comprehensive utilization of lean mines, and the application of a combination of beneficiation and chemical processes. In the Soviet Union Qiu Luo Heida Iloil scheffite beneficiation plant, grasp