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在最近十年中苏联的铁矿石工业取得了一定的成绩。在原矿含铁量下降1.9％的条件下,其商品矿石含铁仍达到58.8％,而且其中含铁超过65％的铁精矿产量占总量的72％。为了进一步强化冶金工业的生产而要求提高高炉冶炼的原料质量。对于需用单位来说,最有实际意义的是反映产品质量的两个基本标志,即指标的绝对值和其对于时间的稳定性。在矿石加工处
In the last ten years, the iron ore industry in the Soviet Union has made some achievements. In the case of a 1.9% decrease in the iron content of the ore, the iron content of its commercial ore still reaches 58.8%, and the iron ore concentrate containing more than 65% of iron accounts for 72% of the total iron content. In order to further strengthen the production of the metallurgical industry, it is required to improve the quality of raw materials for blast furnace smelting. The most practical sign for units in need is the two basic indicators that reflect product quality, namely the absolute value of the indicator and its stability over time. In the ore processing