Lepidolite ore is a common lithium mineral and an important mineral for lithium extraction. With the development of lithium battery technology in the new energy industry, the demand for lithium is increasing, and the deep processing of lepidolite ore has attracted more and more attention. In the process of extracting lithium from lepidolite ore, it is necessary to pulverize lepidolite ore. What kind of grinding lepidolite ore is used for is a topic that has attracted much attention. The limestone method and HSO method commonly used in the process of extracting lithium from lepidolite ore require Using grinding equipment, the limestone method for lithium extraction is to mix lepidolite and limestone, and then calcinate at 900-1100 ° C, so that the alkali metals in it can be converted into compounds that are easily soluble in water. The lithium in it is extracted by the method; the HSO method has requirements on the fineness of the lepidolite, and the lepidolite needs to be ball-milled to a certain fineness before it can meet the requirements of the leaching rate.