Study on the typical model of green mine for comprehensive utilization of resources: taking Caijiaying Zinc Polymetallic Mine as an example

Caijiaying Zinc Polymetallic Mine is the largest Pb-Zn deposit in Hebei Province, which has approximately 60% high and 40% low grade ores, and symbiotic Pb, and Au, Ag, Ga and other rare metals. It is a typical low-grade polymetallic coexisting non-ferrous metal deposit in China. According to its resource endowment characteristics, Caijiaying Mine takes the comprehensive utilization of resources as the main direction of green mine construction. It mainly includes the efficient utilization of low-grade ores, the comprehensive utilization of co-associated resources and the comprehensive utilization of resources, and the basic completion of “grain recycling” “rich and poor” and “turning waste into treasure”. Systematically summarizes the collection of methods and forms in the comprehensive utilization of resources in Caijiaying Mine, summarizes the typical mode of comprehensive utilization of resources, takes the long-term management of green mines as the main line, forms a horizontal coupling circular industrial chain consisting of “resources-products-waste-renewable resources”, creates “three types of mines”, and forms a typical mode of comprehensive utilization of resources in green mines. The construction mode integrates green technology system, industrial mode and management mode, forms a good display window, provides technical support for regional mines, and plays a significant role in demonstration and leading.