Blast furnace-rotary furnace section scheduling system modeling method based on queuing theory and system simulation

Abstract

The invention discloses a blast furnace-rotary furnace section scheduling system modeling method based on a queuing theory and system simulation. The method comprises the following steps of: decomposing a queuing system in 'an iron exchanging ladle / iron receiving tank sharing' interface mode into a pretreatment-rotary furnace iron exchanging subsystem, a transport subsystem and a blast furnace tapping subsystem by using a queuing theory method by means of mathematical analysis and the system simulation; establishing a queuing simulation model and an operating cost function of each subsystem respectively; researching an influencing mechanism of performance indexes and the operating cost of each subsystem due to a customer arrival mode, a departure mode, a queuing rule and service counter vacation policy changes; optimizing major parameters of each subsystem; educing the main performance indexes of the whole queuing system in the 'iron exchanging ladle / iron receiving tank sharing' interface mode by using matrix-geometric solution method; establishing a queuing simulation model and a total operating cost function of the system; and optimizing key parameters of the system to lay the foundation for the dynamic and ordered operation of the 'iron exchanging ladle / iron receiving tank sharing' interface mode.

Description

technical field [0001] The invention belongs to the field of information technology, relates to mathematical analysis and system simulation, and in particular to a modeling and design method of blast furnace-converter section scheduling system based on queuing theory. Background technique [0002] The process technology interface of the blast furnace-converter section is an important section connecting the two major processes of ironmaking and steelmaking in the iron and steel production process. Due to the advantages of energy saving, environmental protection, and time saving in the mode of "exchanging iron ladles / receiving iron cans", many iron and steel enterprises at home and abroad have adopted this mode. Japan's JFE Keihin Factory adopts a 300t molten iron tank to realize the mode of "combining iron ladle / receiving iron tank", and the average temperature of molten iron entering the converter reaches 1350°C. After a steelmaking plant in an old area of ​​Anshan Iron and...

AI Technical Summary

Problems solved by technology

Practice has proved that the batch size of the arrival process in the system (that is, several cans per car), the probability distribution of the arrival time interval, the multi-queue or single-queue queuing, the probability distribution of the service desk service time and the vacation strategy have great influence on the temperature of molten iron entering the converter, the correlation Equipment productivity, transportation costs have a great impact

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