我选矿厂碎矿车间自1995年投产起,中碎、细碎设备均采用圆锥破碎机破碎,中碎为1台PYB1750标准圆锥破碎机,细碎为2台PYD1750短头圆锥破碎机,投产初期偏心轴套和机架衬套均采用铜套,由于铜套价格昂贵,烧套或变形后检修更换难度较大,于2000年改用尼龙衬套,但由于各种因素影响尼龙? Since the ore dressing plant was put into operation in 1995, the crushing and crushing equipments of the concentrator plant were crushed by a cone crusher. The crushing equipment was a PYB1750 standard cone crusher which was crushed into two PYD1750 short head cone crushers. The initial eccentric shaft was put into operation Copper bushings are adopted for the bushings and the bushings of the bushings. Due to the high price of copper bushings, it is more difficult to repair or replace the bushings or the bushings after they are deformed. In 2000, they were replaced with nylon bushings, but nylon was affected by various factors.