anthracite coal of mild oxidation samples were separated by density separation using a centrifugal extractor with the density fraction of kg/dm3. Grinding was conducted in a laboratory dry rod mill. Grinding times were 5 min, 10 min, 20 min and 30 min, respectively. The grinding products and flotation
Lab Sample Grinder Machine. Model No.: GJ3 Brand: TENCAN Appliions: Lab sample grinder machine is also called sealed lab sample grinder machine, which is often used for milling, grinding, smashing nonmetallic minerals with certain hardness, such as coal, coke, waste rock, all kinds of ores. It grinds materials into powder for lab analysis and test.