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本期我们发表了鞍钢大孤山铁矿、山东烟台地区小钢联祥山铁矿认真贯彻精料方针,获得可喜成果的经验文章。精料,就是高品位的铁精矿、铁矿石。众所周知,我们黑色金属矿山是钢铁工业的原料基地,是为钢铁生产提供原料的。矿山生产铁精矿、铁矿石的数量多少、含铁品位高低都直接关系到钢铁的生产。据计算,铁精矿含铁品位提高1%,炼铁焦炭消耗可降低1.5%,高炉生产能力就增加2.5%。国内外无数实践证明,精料是强化冶炼的物质基础,是高炉高产、优质、低耗特别是节约焦炭的有效措施。搞不搞精料,不仅仅是个技术问题,而是关系到钢铁大上的政治问题、路线问题,是贯彻多快好省地建设社会主义总路线的大问题。鞍钢大孤山铁矿在毛主席三项重要指示和“鞍钢宪法”精神的指引下,紧紧依靠工人阶级,大搞三结合,坚持科学实验,用了三年时间,进行多方案比较,百折不挠,终于用尼龙蓖细筛再磨方法提高磁选精矿品位获得成功。山东烟台地区小钢联祥山铁矿是个设备简陋的小矿山,但他们矿小志气大,一心想着要为小高炉多出钢,不断提高铁精矿质量,现在已把铁精矿品位搞到68%,这是很了不起的。他们的经验都说明,只要有一条马克思列宁主义路线,怀着要把钢铁工业搞上去这个大目标,相信和依靠群众,同时又有一个科学的态度,铁精矿品位是能够提高的,我国选矿的各项指标也一定能够走在世界的前列。
In this issue, we published the experience articles of Anshan Dagushan Iron Mine and Xiaoshan Iron and Steel Xiangshan Iron Mine of Yantai, Shandong, to conscientiously implement the principle of fine materials and get gratifying results. Concentrate, that is, high-grade iron ore, iron ore. As we all know, our ferrous metal mine is the raw material base for the steel industry, which supplies raw materials for steel production. Iron ore mine production, the number of iron ore, iron and steel grade are directly related to the level of steel production. According to the calculation, the iron ore grade of iron ore is increased by 1%, the consumption of ironmaking coke can be reduced by 1.5%, and the blast furnace capacity can be increased by 2.5%. Numerous practices at home and abroad have proved that fine material is the material basis for strengthening smelting and is an effective measure for high yield, high quality and low consumption of blast furnace, especially for saving coke. To refrain from engaging in fine materials is not only a technical issue but a political issue and a route issue related to the great steel industry. This is a major issue for implementing the general line of building socialism with more efficiency and more efficiency. Under the guidance of Chairman Mao’s three important instructions and the spirit of “Ansteel Constitution,” the Ansteel Dagushan Iron Mine closely followed the working class and vigorously pursued the integration of science and technology. It took three years to conduct multi-program comparisons and never give up. , Finally with nylon grate re-grinding method to improve the quality of magnetic separation concentrate to be successful. Iron and steel company in Yantai, Shandong Province Iron and steel is a small and simple equipment, mines, but they are small morale, bent on more for the small blast furnace steel, and continuously improve the quality of iron concentrate, iron concentrate has now engaged in the grade To 68%, this is amazing. Their experience shows that as long as there is a Marxist-Leninist line with the great goal of going to the steel industry, trust and depend on the masses, and at the same time have a scientific attitude, the quality of iron concentrates can be improved. Our country’s beneficiation The various indicators will certainly be able to walk in the forefront of the world.