System Analysis of Circular Economy Development in Coal Mining Area

Coal mining area ecology industrial chain (nets) is an industry networked economic organization based on the mode of circular economy; industries and environment are related through energy flow to form a "nutrition" relationship between the mining industries. Through the optimized analysis of mine area eco-industry, when surplus scale of the active industry unit exceed absorption scale the passive industry unit, passive industry unit scale enlarge and the excess material are disposed outside the industry chain (nets); otherwise, it should reduce the passive industry unit scale or obtain the surplusage from the outside of industry chain (nets); When both of them are equal, the industry units of mining area eco-industrial chain (nets) are in coordination state. Coal mining area circular economy has three practical modes: ecotype coal circular economy unit, ecotype coal circular economy park and ecotype coal circular economy city.