Research On Iron Ore Distribution Transportation Optimization And Profit Allocation Under The "Port-Steel" Alliance

As the country’s basic industrial sector,the steel industry is an important foundation for the development of the national economy and national defense construction.Due to the low grade of iron ore in China,a large number of imported high-grade iron ore is needed.Ports as inevitable nodes in the supply chain of imported iron ore,the long-term and large-scale procurement of overseas iron ore makes the steel production supply chain closely related to the port development.With the development trend of economic globalization,ports and steel mills are gradually developing towards vertical integration and horizontal clustering,and the form of industrial alliance is becoming a new form of integrating resources.And a fair and reasonable profit allocation mechanism is very important to avoid "alliance without alliance" and maintain the stability of the alliance.Therefore,this thesis takes the distribution and transportation of iron ore under the "Port-Steel" supply chain alliance as the research subject,a two-stage optimization model is constructed.In the first stage,the transportation volume distribution model is constructed with the goal of minimizing the distribution and transportation cost,and the optimal distribution and transportation plan is decided to determine the contribution of the alliance members.And compared with the analysis before the alliance,the verification shows that the cost of the“port-steel” alliance is reduced and the overall economic benefit is increased.The second stage determines the contribution of alliance members according to the first-stage distribution and transportation plan,supported by cooperative game theory,on the basis of matching the input and income of alliance members,considering the cost sharing of iron ore procurement and the sharing of revenue from steel products,a multi-objective optimization model with the maximum profit of the port service supply chain and the maximum profit of the steel mill is constructed.Through the analysis and verification of the profit allocation result,it is shown that the profit allocation result conforms to the principles of overall rationality and individual rationality,which proves that the profit allocation model is fair and effective.