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自一九五二年下半年以来,由于推行了铁球合理入,改变了磨矿操作条件,使东北分局全局选矿处理矿量到目前为止,铜较一九五二年提高15％,铅较一九五二年提高53％,锌较一九五二年提高50％,钼较一九五二年提高37％,也就是说,在原设备基础上全局球磨机平均每小时每马力效率,一九五二年为0.054噸/马力/时,现在为0.077噸/马力/时,较一九五二年增加到142％,如以逐年选矿处理矿量每小时每马力能力计算繪成曲线则如第一图。获得这样成绩的因素是:第一、掌握了磺石嵌佈性质,实行了粗磨矿;第二、部分矿山给矿粒度缩小。
Since the second half of 1952, due to the reasonable introduction of iron balls, the grinding operation conditions have been changed and the northeast branch has been benefited from the global beneficiation process. As of now, copper has risen by 15% over 1952 and the lead An increase of 53% in 1952, a 50% increase in zinc over 1952 and a 37% increase in molybdenum over 1952. In other words, the average hourly horsepower efficiency of the global ball mill based on the original equipment was 19% 0.052 ton / hp in FY02, now 0.077 ton / hp / h, increasing from 142.5% in 1952. If we calculate the hourly horsepower per tonne of beneficiation amount per year, A picture The factors that led to such success were: First, grasping the nature of the sulphurite cloth and carrying out rough grinding; secondly, some of the mines reduced their grain size.