放矿理论研究现状存在问题及发展方向

我国崩落法矿山矿石综合回收水平低,贫化损失指标相对高出国外先进矿山约10％。本文详述了放矿理论的研究现状与存在的问题,目前测定实际崩落矿岩散体流动参数的难度大且手段缺乏,限制了放矿理论对崩落法放矿的实际指导效果,指出放矿控制应以有效指导降低贫化损失为目的,不必拘泥于理论检验,并分析了放矿理论的研究方向。

PRESENT SITUATION, PROBLEMS AND DIRECTIONS OF STUDYING ON ORE-DRAWING THEORY

It is the present situation that the general recovery of ores is low, the dilution and loss of ore is relatively higher about 10 percent in many mines using caving method in China than of advaced mines overseas. In this paper the author analyzed present situation and problems of studying on ore-drawing theory, pointed out that ore-drawing theory have limited guiding effects on drawing ores in reality, because to measure flowing parameters of caved ore-rock materials is very difficult as well as ways and means to get those parameters are also lack in-situ, and put forward that ore-drawing theory should take it as the main purpose to lower dilution and losing of ores effectively, need not be punctilious in theoretical verification. Moreover, the author analyzed ths studying directions of ore-drawing theory.