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北京矿冶研究院研制的φ1500×1000毫米永磁湿式转笼型强磁选机(以下简称笼式机),自1974年10月至1975年7月,在马钢凹山选厂进行了6个月的工业试验,在取得成效的基础上,利用笼式机更换永磁环式磁选机进行了强磁改造。1975年底第一期工程16台和1977年5月第二期工程15台先后投入生产使用(图1)。目前31台(粗选20台,精选11台)笼式机运转正常,选别指标良好。实践证明,利用笼式机选别凹山类型的“红矿”是成功的。
The φ1500 × 1000 mm permanent magnet wet cage type strong magnetic separator developed by Beijing Mining and Metallurgy Research Institute (hereinafter referred to as cage machine) was carried out at the Anshan Aoshan Selective Factory from October 1974 to July 1975 Months of industrial tests, based on the results achieved, the use of cage replacement magnetic ring magnetic separator for the magnetic transformation. At the end of 1975, the first phase of 16 and May 1977, the second phase of the project 15 has put into production (Figure 1). At present, 31 units (rough selection of 20 units, 11 units of selection) are operating normally and the sorting indexes are good. Practice has proved that the use of cage machine sorting concave type “red ore” is successful.