Bottlencks In Coal Production Logistics System Diagnosis And Optimization

The coal industry in China's national economy plays a very important role, but as the traditional industry has long been planned economy influence, coal enterprise management level, especially the logistics level to be improved. Modern logistics theory, especially the development of logistics simulation technology for improving the coal enterprise logistics management level, open up "the third profits source" provides a shortcut.This paper firstly by theory aspects to the coal mine production logistics system, through and manufacturing enterprise production logistics system analysis, found in value realization ways, logistics operation characteristics, logistics environment, logistics process, logistics form, the way and the method of logistics are significantly difference, manifests the logistics in coal mine production in the leading role; Next to the coal mine production logistics technology system is analyzed, and emphatically introduced the mine production logistics system of the main equipment and operation process modeling simulation of the foundation; Then based on the discrete event modeling simulation study, puts forward the related theory of coal production logistics belongs to the discrete event systems theory, analyzes current popular several discrete event modeling simulation software, and the WITNESS simulation software of the system are introduced; On the basis of above studies with queuing theory, this paper builds the coal production logistics system model and according to each equipment to the logical relationship between the coal mining machine cut coal system, move frame system, conveyor system and rail transport system carry on the detailed analysis, this paper puts forward how to transport system for continuous discretization and how the coal internally modeling simulation scheme femininized sense; And then studied how to use WITNESS simulation method recognition and diagnosis of production logistics bottlenecks, and set the corresponding evaluation index; Comprehensive various above theory, this paper USES modular object-oriented modeling thought, established a WITNESS software based on the mine production logistics simulation model was designed, and the simulation of coal production logistics evaluation method and mine production system original parameters will convert simulation parameters of mathematical formula, finally the paper typical cases are analyzed and appraised.