Strong Magnetic Iron Extraction Process
Single magnetic iron ore, strong magnetism, easy to separate
Weak Magnetic Iron Extraction Process
Apply to hematite, limonite, specularite, siderite, martite or compound iron ore
Low grade, wide range of particle size, complex mineral composition, refractory iron ore
Liaoning Anshan 500t/d Iron Extraction Plant
On July 14, 2009, Xinhai signed a deal with customers to undertake one-stop mineral processing service about Liaoning Anshan 500t/d iron extraction plant. The project was completed on July 15, 2010 and then put into operation. The final recovery rate was up to 80.5%, estimated annual output of iron ore concentrate was up to 1.8 million tons, the annual turnover reached 30.7 million, 33.8772 million net profit for the year.
Liaoning Anshan 500t/d iron extraction plant originally used weak magnetic - strong magnetic opening process. The practice showed that this process failed to select the final qualified iron ore concentrate, and the recovery rate didn’t reach the standard. Therefore, customers specially commissioned Xinhai mineral processing institute to reform. After testing the samples, Xinhai laboratory decided to adopt stage grinding - coarse and fine separation - magnetic separation - gravity separation - anion reverse flotation process. The grinding system consisted of 10 primary ball mill and 4 secondary ball mill. At the same time, Xinhai used fine screening-regrinding technology, which greatly improved iron concentrate grade. After a series of transformation, the iron concentrate grade was up to 72.25%, and the recovery rate was as high as 80.5%.