Abstract: Introduces the structural characteristics and magnetic properties of LCG dry separator, and discusses the design of LCG Dry machine. LCG Dry machine is used to make tailing discarding and pre-concentration on ultra-poor magnetite with good effect and successfully applied in many plants. Especially for pre-concentration of low-grade magnetite in dryland, it has a broad application prospect.

Key words: Ultra-poor magnetite, Dry separator, Pre-concentration