Comprehensive optimization method and system for order scheduling of pulping and paper making enterprises

Abstract

The invention discloses a comprehensive optimization method and a comprehensive optimization system for order scheduling of pulping and paper making enterprises. The method comprises the following steps of: 1, determining the number of products to be produced; 2, determining yield of various kinds of paper on different paper machines, sequence of producing the products by each paper machine and paper switching time during production of each paper machine in order to fulfill the aim of ensuring the minimum final cost; 3, determining a paper cutting plan of each kind of paper produced by each machine in order to fulfill the aim of ensuring the minimum production cost; and 4, arranging a corresponding paper machine for production according to the determined plan. The system comprises a real-time database, a papermaking production line model base, an optimal scheduling model base, an optimal cutter scheduling model base, a scheduling plan report base, a cutter scheduling plan report base and a man-machine interaction interface. The method and the system of the invention can completely solve the problem of optimization of scheduling and cutter scheduling of paper factories from order scheduling to paper cutter scheduling, has high feasibility and can solve the actual optimization problem well by adopting an advanced and precise model algorithm.

Description

technical field [0001] The invention relates to a production scheduling optimization method and system, in particular to a comprehensive optimization method and system for order production scheduling of a pulp and paper making enterprise. Background technique [0002] A paper mill is a typical process enterprise, which has the characteristics of large order quantity, short product delivery time, and high inventory cost. The production process is often affected by factors such as geography, raw materials, energy, equipment, and manpower. Improper production scheduling methods will not only cause bottlenecks in the production and operation of paper-making enterprises, but also cause waste of various resources and increase the production costs of enterprises. Arranging actual production according to customer orders is a basic and important link to save resources, reduce production costs, and create higher profits for enterprises. [0003] The work of paper mill order scheduli...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies and defects of the existing methods in solving large-scale and complex production scheduling optimization problems, and propose a comprehensive optimization method and optimization system for order scheduling in pulp and papermaking enterprises, and use the method and system to perform production scheduling. Knife, so that the production of paper mills can not only meet customer order requirements (various product specifications, large demand, short delivery time), but also reduce their own production costs (lowest transportation costs, lowest raw material costs, lowest energy consumption costs, chemicals , water and waste treatment costs are the lowest, labor costs and management costs are the lowest, and paper grade conversion costs are the lowest)

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