Dynamic water distribution model of slab caster

Abstract

The invention discloses a dynamic water distribution model of a slab caster. The dynamic water distribution model comprises seven secondary-cooling areas of the caster. The secondary-cooling areas include a first cooling area, a second cooling area, a third cooling area, a fourth cooling area, a fifth cooling area, a sixth cooling area and a seventh cooling area. The actual water consumptions of the secondary-cooling areas meet the requirement of a formula that Q=AV<2>+BV+C. Products produced by the caster include common-carbon low-alloy steel and high-medium-carbon alloy steel; each year is divided into three stages, and surface temperatures of casting blanks are controlled according to slab equipment and climate changes and based on produced steel products; model parameters of the dynamic water distribution model are adjusted according to the corresponding formula to realize dynamic control. According to changes of climate and external conditions and characteristics of slab production, a crystallizer and a secondary-cooling water distribution model are adjusted in time, the dynamic water distribution model for slabs is created, surface quality and internal quality of the casting blanks of the slabs are stabilized, and accordingly, the quality problems of the casting blanks due to changes of facts such as external climate are solved.

Description

technical field [0001] The invention relates to a water distribution model of a slab continuous casting machine, in particular to a dynamic water distribution model of a slab continuous casting machine with a slab arc radius of 7.5 meters. Background technique [0002] The dynamic water distribution model of the slab continuous casting machine is an important technical link of the continuous casting machine. It has always been the focus of continuous casting production, and it is also a difficult point of continuous casting production. Although in the initial stage of continuous casting machine construction, various continuous casting machine design units and research institutes jointly developed the dynamic water distribution model of each continuous casting machine, but without exception, the new dynamic water distribution model of continuous casting machine cannot meet and guarantee the continuous casting machine. The requirements of production and quality control, especi...

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Problems solved by technology

[0003] The slab continuous casting machine of JISCO No. 1 Steelmaking Plant is the equipment in the 1990s. Because it is located in the northwest region, the climate changes in the morning and evening, and the arc radius of the casting machine is small. The production of slabs and the quality of slabs have not been stabilized all the time. control, the quality of the slab seriously restricts the production of the subsequent process