Quartz sand is an important industrial mineral raw material and is widely used in a variety of industrial fields. In industrial production, PTMS magnetic separation is the key operation to improve the purity of quartz sand. Because the content of iron directly affects the quality of quartz sand, the purity requirements of quartz sand in the high-tech field are very demanding, the SiO2 content is greater than 99.99%, and the impurity content, especially the iron impurity content, is limited to a very low range.
At present, the main method used for quartz sand PTMS magnetic separation iron removal is mechanical scrub. Mechanical scrubbing is to remove the film iron of the quartz sand surface and the iron minerals adhering to the quartz sand surface with the help of the use of mechanical external force and the collision and friction between the quartz sand. Scrub technology mainly has rod grinding and mechanical scrubbing.
The advantage of quartz sand PTMS magnetic separation mechanical scrub method is that the product quality is good, can meet the quality requirements of float glass for high quality silica sand, and the output is large, low cost and simple operation, so some small-scale production enterprises and processing enterprises use more, but the iron rate is relatively low.
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