Research On The Construction And Optimization Of Coal Green Supply Chain System Of Large Coal Group

Coal is a main energy to the national economy, the coal supply chain is an important bridge between coal production and consumption, but all processes of the existing coal supply chain system not only produced a bad influence on the ecology environment,but also caused a serious waste of resources.Therefore, based on the green goal of coal supply chain,study on construction and optimization of coal green supply chain system, provide the theory and practice method for green supply chain management of coal enterprises.Based on the characteristic analysis of the current coal supply chain and its impact on the ecological environment, the "green" concept is introduced to the coal supply chain, defines the coal green supply chain (C-GSC) concept, and shows the importance of constructing coal green supply chain (C-GSC).Analyze the internal and external factors of constructing coal green supply chain and function and build coal green supply chain impact factors conceptual model. Use SPASS software and the structural equation model to measure the influence factors. Research results show that, the enterprise green management, social responsibility, sustainable development needs, the external conditions and external related parties through the green supply chain benefit driven indirectly produce positive effects on coal green supply chain implementation will.Internal control through the green supply chain efficiency driven indirectly produce negative effect on green supply chain implementation will.Policies and regulations have a direct positive effect on green supply chain implementation will.The building of coal green supply chain system. Based on the perspective of complex adaptive system,analyze the mode of operation of the green supply chain system. Focuses on the analysis of waste recycling system of coal supply chain. Constructed coal green supply chain system which including resources system, production system,sales system,logistics system, environment system, social system and the waste recycling system seven subsystems, and analyze the various system functions.Green coal supply chain system optimization. First,based on the characteristics of coal green supply chain,maximize the profits of coal enterprises, and guarantee the customer needs, taking into account the ecological environment, establishes a multi-objective optimization model of coal green supply chain. Research results show that:the decision of coal production and sales achieves the profits maximization of enterprises, customers’demand and the public requirements on environmental protection based on which meets key customers’demand.It is conducive to the realization of the sustainable development of enterprises and the green target. For coal enterprises to implement green supply chain, it has realistic guiding significance. Second, the establishment of coal green supply chain waste recovery system simulation model.Analyze sensitivity of three representative waste supply chain model.The results show that, compared with the gray waste recycling model of supply chain and current supply chain waste recycling mode,the wastes get effective and comprehensive utilization under green supply chain waste recycling mode.Which can achieve the coordination and optimization of coal green supply chain system on economic benefit, social benefit and ecological environment benefit.