摘要
某铜渣选矿厂采用半自磨+球磨的磨矿工艺流程,球磨机采用中信重工的ф5.03×7.5 m溢流型球磨机,日常生产中球磨机的电耗占到全厂总电耗的40%以上。通过一系列的技改优化:磨机衬板优化改造、磨机电机更换改造、磨矿介质优化替代、一段溢流快速浮选技改,有效地降低了球磨机的吨矿电耗,磨机吨矿电耗从27.27 kW·h降低至20.71 kW·h,吨矿电耗下降6.56 kW·h。按年处理渣量75万t、电费0.55元/kW·h计算,一年可节约电量492万kW,电费约270.6万元,获得较好经济效益。
A copper slag Ore-dressing Plant adopts the grinding process flow of semi-automatic grinding ball milling,and the ball mill adopts CITIC Heavy Industries ф5.03×7.5 m overflow ball mill,the pow-er consumption of ball mill in daily production accounts for more than 40%of the total power consumption of the whole plant.Through a series of technical transformation:optimization and transformation of mill liner,replacement and transformation of mill motor,optimization and replacement of grinding medium,and technical renovation of one stage overflow rapid flotation,the power consumption per ton of ball mill has been effectively reduced,the power consumption per ton of mill has been reduced from 27.27 kW·h to 20.71 kW·h,and the power consumption per ton of mill has been reduced by 6.56 kW·h.According to the calculation of 750000 tons of slag treatment per year and 0.55 yuan/kW·h of electricity cost,4.92 million kW·h of electricity can be saved per year,and the electricity cost is about 2.706 million yuan,obtaining good economic benefits.
作者
华春林
吕旭龙
林巨龙
曹彬章
温志森
迟晓鹏
HUA Chunlin;LV Xulong;LIN Julong;CAO Binzhang;WEN Zhisen;CHI Xiaopeng
出处
《有色设备》
2023年第6期71-75,共5页
Nonferrous Metallurgical Equipment
基金
国家自然科学基金项目(52274349)
福建省青年基金项目(2023J05024)。
关键词
铜渣
溢流型球磨机
电耗
copper slag
overflow ball mill
power consumption
