Method for controlling hot rolling material preparation in slab yard

Abstract

The invention provides a method for controlling hot rolling material preparation in a slab yard. The method comprises the step of obtaining the information of a hot rolling planned slab, slab information of the slab yard, stack position information of the slab yard, and material preparation requirement information, the step of determining an initial material preparation control scheme and a corresponding hoister instruction, the step of optimizing the initial material preparation control scheme according to a tabu search method, and the step of carrying out hot rolling planned material preparation through the hoister operation according to the final preparation control scheme obtained after optimization. The number of times of stack transferring is reduced, the work efficiency of driving material preparation is improved, and the logistics cost of the slab yard is reduced; the hoister using efficiency is improved by shortening the moving distance of a hoister, and the material preparation time is shortened; the space utilization efficiency of the slab yard is improved by improving the placement orderliness of slab stack transferring, the requirement for safety in the slab yard is met, the circulation efficiency of slabs is accelerated, and logistics cost is reduced.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a method for controlling hot rolling stock preparation in a slab warehouse. Background technique [0002] At present, the production process of general iron and steel enterprises is as follows: figure 1 As shown, the slab is produced as a semi-finished product in the continuous casting process, and then stored in the slab warehouse. As a buffer link between steelmaking-continuous casting and hot rolling, the slab warehouse plays a vital role in coordinating the capacity of steelmaking and rolling and maintaining the balance of the entire production process. The logistics operation of the slab warehouse mainly includes operations such as slab storage, material preparation and delivery, and the crane is responsible for performing all operations. The stacking operation is always accompanied by the removal operation of the demand slab. When the demand slab is ready to be remov...

AI Technical Summary

Problems solved by technology

When implementing the material preparation plan, the management personnel of the warehouse area extract the planned slabs in the reverse order of the batch order of the hot rolling plan, and put the planned slabs into the feeding area in turn. During the material preparation process, if there are The slab is covered and stacked: if it is poured into a stack containing other required slabs, then the slab may be stacked again; if it is poured away from the stack where the demanded slab will be removed , the crane needs to move a long distance, prolonging the material preparation time, and affecting the production rhythm of hot rolling; if it is poured into a stack where the slabs are placed chaotically, the chaos of the stack will increase, and slabs of different specifications Mixed piles, especially when slabs with large size differences are piled up in one pile, collapse accidents are likely to occur if they are handled, and the chaotic arrangement of slabs increases the difficulty and cost of warehouse logistics management

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