首页|中关铁矿单一磁选工艺提品降硫流程优化

中关铁矿单一磁选工艺提品降硫流程优化

扫码查看
随着中关铁矿矿房的开采,局部出现高硫矿石,致使铁精粉出现全铁品位较低、硫含量较高的情况.在不引入浮选等易造成环境污染的高成本选别作业的情况下,考察了仅依靠单一磁选工艺提品降硫的可行性.对全粒级物料、+0.074 mm物料以及-0.074 mm物料分别进行淘洗机试验,仅-0.074 mm粒级物料在固定磁场96 kA/m、循环磁场84 kA/m、补偿磁场84 kA/m、上升水量1 300 L/h时,可得到全铁品位为68.02%、硫含量为0.25%的铁精粉,可以满足生产要求.根据实验室试验结果,对现场进行了工艺改造,最终得到全铁品位为66.33%、硫含量为0.46%的铁精粉,实现了提铁降硫的目标.
Process Optimization of Single Magnetic Separation Process of Upgrading Product Quality and Reducing Sulfur in Zhongguan Iron Mine
With the mining of Zhongguan Iron Mine,high-sulfur ore appears locally,resulting in low total iron grade and high sulfur content in iron concentrate.In the case of not introducing high-cost sep-aration operations such as flotation which are likely to cause environmental pollution,the feasibility of up-grading product quality and reducing sulfur content by only relying on a single magnetic separation process was investigated.The elutriation machine test was carried out on the full-size material,+0.074 mm size and-0.074 mm size respectively.Only when treating-0.074 mm size,and the fixed magnetic field is 96 kA/m,the circulating magnetic field is 84 kA/m,the compensation magnetic field is 84 kA/m,and the rising water volume is 1 300 L/h,the iron concentrate with total iron grade of 68.02%and sulfur content of 0.25%can be obtained,which can meet the production requirements.According to the laboratory test results,the process transformation is carried out on the site.Finally,the iron concentrate with total iron grade of 66.33%and sulfur content of 0.46%is obtained,and the goal of increasing iron and reducing sulfur is realized.

single magnetic separation processiron concentrateUpgrading product quality and re-ducing sulfurhigh frequency fine screenwashing machine

刘聪、任帅、张义坤、张庆博、杜威

展开 >

河北钢铁集团沙河中关铁矿有限公司

河北省复杂铁矿低碳智能高效开采技术创新中心

单一磁选工艺 铁精粉 提品降硫 高频细筛 淘洗机

2024

现代矿业
中钢集团马鞍山矿山研究院有限公司

现代矿业

影响因子:0.33
ISSN:1674-6082
年,卷(期):2024.40(12)