Research On The Optimization Of Coal Transportation Path Based On The Swap Bodies Mode

As one of our important energy sources,coal plays a vital role in modern society.Coal is mainly distributed in the northwest of China,but many thermal power plants in North,central and South China rely on coal,thus creating the demand for trans-regional transportation of thermal coal,which mainly includes "north to south" and "west to east" rail,road or water transportation.This separation of supply and demand has restricted the demand for electricity in People’s Daily life and industrial production.To solve this problem,we must first consider how to plan the entire transportation process of thermal coal from coal enterprises to power plants.The swap bodies mode is a feasible solution.By establishing an optimization model of thermal coal transportation path based on the swap bodies mode and using genetic algorithm to solve it,it can be verified whether the swap bodies mode can effectively reduce the transportation cost under different queuing service intensity.This thesis will summarize the relevant theories of electric coal transportation for swap bodies,analyse the reasons affecting electric coal transportation for swap bodies,analyse the current factors existing in electric coal transportation cost in our country,and based on this,expand the electric coal transportation path optimization research.First of all,this thesis discusses the theories related to the swap bodies mode transportation,queuing transportation and transfer transportation,and summarizes the problems of the transfer transportation of thermal coal in the process of queuing and transportation from coal enterprises and the application of swap bodies mode transportation.Secondly,the related factors of electric coal transportation over swap bodies are analyzed,including the subsidy support of national and local government for electric coal transportation over swap bodies,the current electric coal transportation channel and cost composition.Specifically,the article gives a detailed overview of local government subsidies for tolls for electric coal road and water transportation and support for new energy heavy trucks,as well as a description of the current situation of the three transportation channels.In addition,this thesis focuses on the analysis of the current thermal coal transportation costs,and the whole transportation process is divided into two parts: inverted short transportation and trunk transportation.In the backward short transportation,this thesis includes the queuing time cost of transport vehicles in coal enterprises into the backward short transportation cost,which provides the original calculation data for the subsequent model building and data.Thirdly,this thesis comprehensively considers the transportation path cost provided above on thermal coal in swap bodies transportation.Aiming at minimum total transportation cost,this thesis establishes a thermal coal transportation path model under swap bodies mode.According to the characteristics of the model,genetic algorithm is proposed to solve the optimal transportation path.Finally,by verifying whether the thermal coal transportation under the swap bodies mode can effectively reduce the transportation cost,this thesis takes QJ Company in Inner Mongolia as the background,and takes multiple thermal coal transportation networks from Ordos City to Xuzhou city as the research object,and further studies how the genetic algorithm is used to solve the impact on the overall transportation cost under the swap bodies mode and non-swapping bodies mode under different service intensity.The study found that with the improvement of service intensity of queuing system,The experimental results show that with the increase of queuing system service intensity,the overall transportation cost will also increase,and the absolute difference of transportation cost will also increase accordingly.Based on the experimental results,it can be seen that the thermal coal transportation based on the swapping bodies mode can maximize the optimal overall transportation cost.It is further proved that the swapping bodies mode is of research value in the transportation of thermal coal.