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落雪矿选矿厂于1969年4月投产,至1978年,平均生产指标仅达到:精矿品位16.87%,回收率80.10%(设计原矿品位0.928%,精矿品位20.00%,回收率82.40%。在党的十一届三中全会精神的鼓舞和推动下,总结了投产以来的经验和教训,1979年以来,通过整顿企业,加强管理,组织技术攻关,取得了初步成果。1979年精矿品位达到20.75%,回收率83.22%,1980年在原矿氧化率有所上升的情况下,精矿品位又提高到22.54%,回收率达到83.95%,实现了精矿品位和回收率双提高。同时主要药剂消耗大幅度下降,取消使用25号黑药,在增
The falling snow ore beneficiation plant was put into operation in April 1969. By 1978, the average production index reached only: the concentrate grade was 16.87% and the recovery rate was 80.10% (the designed ore grade was 0.928%, the concentrate grade was 20.00% and the recovery rate was 82.40%. Inspired by and promoted by the spirit of the Third Plenary Session of the 11th CPC Central Committee, the experiences and lessons learned since its commencement of operation were summarized. Since 1979, initial results have been achieved through the consolidation of enterprises, strengthening of management and technical breakthroughs. In 1979, 20.75%, the recovery rate of 83.22%, in 1980 the ore oxidation rate increased, the grade of concentrate increased to 22.54%, the recovery rate reached 83.95%, to achieve the concentrate grade and recovery of the double increase. At the same time the main agent Significantly reduced consumption, to cancel the use of 25 black drugs, increasing