我矿选矿厂锡选别工段采用云锡摇床三段选别,即粗选次精矿复洗,中矿再磨后再选,工艺简单。几年来锡选矿回收率只有30%左右。1988年初选矿厂制定了一系列经济责任制,并考核落实到工段班组,生产指标虽有上升,但不明显。同年7月又将承包指标落实到个人,并改革工资奖金的分配形式,使生产指标与个人工资奖金直接挂钩。到同年9月底止,锡平均回收率由1—6月的33.76%提高到40.92%,为企业多创利润8万多元。我们的具体做法是:分段设岗,每班每段床分 I tin ore beneficiation plant do not use Sections of the three sections of Yun tin shaker, that crude concentrate secondary cleaning complex, mining and then re-election, the process is simple. In recent years tin ore recovery rate of only about 30%. At the beginning of 1988, the beneficiation plant formulated a series of economic responsibility systems, which were evaluated and implemented into the work section and group. Although the production index increased, it was not obvious. In the same year, in July, the contract index was again implemented to individuals and the distribution of salary bonus was changed so that the production index was directly linked to the individual wage bonus. By the end of September of the same year, the average recovery rate of tin increased from 33.76% in January-June to 40.92%. More profits for the enterprises hit more than 80,000 yuan. Our specific approach is: set the post section, each class per bed