I. overview
　　GLB2400 *920 type agitating chute is a new type of gold placer beneficiation equipment developed by Hunan Shaoyang Gold Machinery Co., Ltd. in 1984. The machine integrates the separation principle and characteristics of fixed chute and jig, overcomes the phenomenon of fixed chute hardening, greatly improves the recovery rate of gold ore dressing. The ore dressing cycle is four hours, and the recovery rate of gold concentrate is over 90%. The machine has the characteristics of compact structure, light weight, small installation elevation, simple operation, reliable operation and easy maintenance.
　　Due to the low concentrate rate and high enrichment ratio of the agitated chute, the ideal coarse concentrate can be obtained by one roughing process, which simplifies the ore dressing process and reduces the cost of ore dressing. This equipment is ideal for Open-pit mechanized mining of terrace placer gold deposits and alluvial gold deposits, and is also an ideal roughing equipment on gold dredgers.