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冶金部科技司于1989年4月7日至8日在本钢南芬选矿厂召开BK-1021筒式磁选机技术鉴定会。该机系北京矿冶研究总院根据冶金部下达的任务于1985年开始研制,1987～1988年在南芬选矿厂与该厂共同进行了工业试验和生产考查,取得很好的成绩。 BK-1021筒式磁选机的设计采取了大磁包角的磁力系统,底箱设计成有前后溢流堰的新型分选槽。此分选箱设有溢流通道的特殊分选室,使之形成低磁力分选区、强力扫选区和溢流分选区,实现磁力重选和磁选效应,达到提高选矿效率的目的。该机操作控制灵活,适用于各种类型的鞍山式磁铁矿石,分选效果好。
Metallurgical Department of Science and Technology in April 7, 1989 to 8 in Bengang Nanfen Concentrator held BK-1021 cartridge magnetic separator technology appraisal. The machine Beijing Institute of Mining and Metallurgy under the Ministry of Metallurgical Ministry issued the mandate in 1985 to start the development of 1987 to 1988 in Nanfen Concentrator and the plant jointly conducted an industrial test and production test, and achieved good results. The design of the BK-1021 cartridge separator adopted a magnetic system with large magnet angle and the bottom box was designed as a new sorting tank with front and rear weir. This sorting box has a special sorting room with overflow channel to form a low magnetic separation area, a strong sweep area and an overflow sorting area to achieve magnetic re-election and magnetic separation effect to achieve the purpose of improving ore dressing efficiency. The machine operation and control of flexible, suitable for all types of Anshan magnetite, sorting effect is good.