Research On The Construction And Optimization Of Internal Supply Chain Of Large-Scale Coal Enterprise

It has become the key to the coal enterprises obtaining competitive advantage that even supply of coal products by optimizing the coal supply chain to meet customer demand for coal to achieve coal enterprises and customers'win-win. Therefore, it is necessary to study even supply and optimization of coal supply chain.In this paper large-scale coal enterprise is the study object. The concept of large-scale coal enterprise internal supply chain was defined. Then the definition of coal even supply was given, characteristics of even supply, the changes of states and constraints of even supply were analyzed. The thought of large-scale coal enterprise internal supply chain based on even supply-oriented was put forward. Mathematical language description of and relationship analysis of each node, as well as logistics, capital, information flows of supply chain system were carried out. Structure and function of Large-scale Coal enterprise internal supply chain were analyzed from the perspective of system theory. The thought of large-scale coal enterprise internal supply chain systems based on "multi-band system" was proposed.The attributes of large-scale coal enterprise internal supply chain was analyzed. The complexity of large-scale coal enterprises internal supply chain was measured by using entropy theory. By calculating the total entropy, it can be seen that large-scale coal enterprise internal supply chain uncertainty is higher than general manufactures. large-scale coal enterprises within the supply chain and general manufacturing supply systems, It is explained that large-scale coal enterprise internal supply chain has an even higher degree of uncertainty.Based on analysis and quantitative description of large-scale coal enterprise internal supply chain structure, multi-objectives dynamic optimization model of large-scale coal enterprise internal supply chain was set up. They were put forward that multi-objective dynamic optimization model being changed into a goal programming model and the design of a genetic algorithm to solve the model. Xuzhou coal mining group was selected as the object of empirical analysis, and by using multi-objective dynamic optimization model of large-scale coal enterprise internal supply chain, Systemic dynamic decision-makings of chain nodes such as product, supply, sale and inventory of Xuzhou coal mining group internal supply chain were carried out. And then comparative analysis between decision-making results of multi-objective optimization model and the one of single-objective optimization model was done. Finally, the policy proposals of large-scale coal enterprise internal supply chain optimization decision-making are put forward.