Time: 2021-01-28

Speaking of feldspar, there are many places in China, mainly potash feldspar, but there are few high-quality feldspar ores. Most of them contain quartz, muscovite, biotite, magnetite, hematite, limonite. Some feldspar ores also contain apatite, pyrite, amphibole, tourmaline, etc. the iron content is relatively high, and the whiteness or firing whiteness of feldspar can not meet the requirements. In order to improve the industrial value of feldspar and meet the industrial demand for high-quality feldspar ore, impurity minerals, especially iron and titanium oxides, must be removed from poor feldspar ore.

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The crushing process of feldspar ore includes crushing and grinding. On the one hand, the crushing of feldspar is to meet the grain size requirements of the final product, on the other hand, it is also the need of impurity removal process. At present, feldspar grinding is mainly divided into dry grinding and wet grinding. The efficiency of wet grinding is higher than that of dry grinding, and the phenomenon of “over grinding” is not easy to appear. The feldspar processing in glass industry mostly uses steel rod medium for grinding, with high grinding efficiency and uniform particle size, but iron pollution leads to poor feldspar quality; the ceramic industry uses stone wheel milling or ceramic ball milling, with low grinding efficiency and high energy consumption.

Because the iron minerals, biotite, hornblende and tourmaline in feldspar have certain magnetism, they can be separated from Feldspar under the action of external magnetic field. Generally, this kind of mineral in feldspar is weak in magnetism. Only by using high intensity magnetic separation equipment can better separation effect be obtained.

For potash feldspar, marble, limestone, barite, dolomite and other fine powder processing projects, Shanghai Joyal’s ultra-fine grinding machine equipment is more ideal, with higher powder production efficiency. It is a grinding processing equipment with high cost performance, high powder production efficiency and large production capacity. Can also be customized according to the specific requirements of customers belong to your program, welcome to inquire.