选矿工艺设备现状及优化
|
摘要
针对河钢集团沙河中关铁矿投产后出现的跑冒滴漏、供料短缺、台时效率低下、矿粉精度不达标的问题,分析了问题产生的原因,并提出了相应的技改措施。通过优化上料皮带漏斗形状,设计具有两级缓冲效果的重型缓冲托辊,实施上料"一键启停"技术,安装自磨机"返矿装置"及"两级缓冲箱",解决了生产工艺瓶颈。在保证精矿质量的同时,磨机台效由80 t/h提升至170 t/h,节省电费197万元,降低综合备件成本18余万元,使选矿生产顺利达产的同时,取得了良好的经济效益。
In view of the problems of leakage, shortage of feeding materials, low efficiency of hourly efficiency and inaccuracy of pulverized ore in Shahe Zhongguan Iron Mine of HBIS Group, the causes are analyzed and the corresponding technical improvement measures are put forward. By optimizing the funnel shape of feeding belt, designing heavy cushioning roller with two-stage cushioning effect, implementing "one-button start-stop" in feeding, installing "return device" and "two-stage cushioning box" of autogenous mill, the bottleneck of production process was solved. With guaranteeing concentrate quality, the mill hourly efficiency has been raised from 80 t/h to 170 t/h, the electricity cost has been saved by 197,000 yuan, and the cost of comprehensive spare parts has been reduced by more than 180,000 yuan. The beneficiation production can be achieved smoothly, and good economic benefits have been achieved.
In view of the problems of leakage, shortage of feeding materials, low efficiency of hourly efficiency and inaccuracy of pulverized ore in Shahe Zhongguan Iron Mine of HBIS Group, the causes are analyzed and the corresponding technical improvement measures are put forward. By optimizing the funnel shape of feeding belt, designing heavy cushioning roller with two-stage cushioning effect, implementing "one-button start-stop" in feeding, installing "return device" and "two-stage cushioning box" of autogenous mill, the bottleneck of production process was solved. With guaranteeing concentrate quality, the mill hourly efficiency has been raised from 80 t/h to 170 t/h, the electricity cost has been saved by 197,000 yuan, and the cost of comprehensive spare parts has been reduced by more than 180,000 yuan. The beneficiation production can be achieved smoothly, and good economic benefits have been achieved.
引文
[1]沈旭.国内某铜矿选矿厂工艺设备现状及优化实践[J].昆明冶金高等专科学校学报,2016,(2):21～26.
[2]姜传俊.铁矿选矿生产工艺流程的技改与实践[J].新疆有色金属,2009,(1):44～45.
[3]葛勤宪,王新章.莱钢烧结厂皮带输送系统漏斗的改造[J].烧结球团,2006,(12):43～45.
[4]韩黎.带式输送机头部分料漏斗改造实践[J].矿山机械,2010,(18):82～83.
[5]张智慧.仓壁振动器在五阳煤矿选煤厂精煤下料槽中的应用[J].煤,2013,(2):30～31.
[6]杨会民.带式输送机漏斗的改进[J].矿山机械,2003,(02):53～54.
[7]武小龙.煤矿皮带输送机缓冲托辊的改进研究[J].机械管理开发,2018,(8):50～51.
[8]高军伟,贾志宁,黄军.矿用胶带机缓冲托辊的改进设计[J].煤炭工程,2005,(3):68～69.
[9]代兵.大型筒仓技术在邯钢的应用与创新[J].河北冶金,2015,(10):66～68.
[10]宋敏,张世军,刘大立,等.自磨机自返装置[P].中国专利,CN207342872U,2018-05-11.
[11]赵晓红,王成伟,姬建刚,等.一种大型自磨机可拆式双层自返筛[P].CN101507942,2009-08-19.
[12]王得志.庙沟铁矿提高铁精矿品位的实践[J].河北冶金,1996,(8):4～9.
[2]姜传俊.铁矿选矿生产工艺流程的技改与实践[J].新疆有色金属,2009,(1):44～45.
[3]葛勤宪,王新章.莱钢烧结厂皮带输送系统漏斗的改造[J].烧结球团,2006,(12):43～45.
[4]韩黎.带式输送机头部分料漏斗改造实践[J].矿山机械,2010,(18):82～83.
[5]张智慧.仓壁振动器在五阳煤矿选煤厂精煤下料槽中的应用[J].煤,2013,(2):30～31.
[6]杨会民.带式输送机漏斗的改进[J].矿山机械,2003,(02):53～54.
[7]武小龙.煤矿皮带输送机缓冲托辊的改进研究[J].机械管理开发,2018,(8):50～51.
[8]高军伟,贾志宁,黄军.矿用胶带机缓冲托辊的改进设计[J].煤炭工程,2005,(3):68～69.
[9]代兵.大型筒仓技术在邯钢的应用与创新[J].河北冶金,2015,(10):66～68.
[10]宋敏,张世军,刘大立,等.自磨机自返装置[P].中国专利,CN207342872U,2018-05-11.
[11]赵晓红,王成伟,姬建刚,等.一种大型自磨机可拆式双层自返筛[P].CN101507942,2009-08-19.
[12]王得志.庙沟铁矿提高铁精矿品位的实践[J].河北冶金,1996,(8):4～9.