连铸单支定重切割系统的开发与应用

Continuous casting of single heavy cutting system development and application

李志刚

黑龙江省伊春市西林钢铁集团有限公司技术中心

摘　要

2008年以来,在全国钢铁产量几何似的暴涨前提下,产能过剩、价格不断下滑造成各大钢铁厂在经营成本上不断寻求突破,除了加强能源回收利用,降低原燃料消耗等措施外,各种前沿的新技术也不断为各钢厂所应用,定重切割工艺就是其中之一。本文介绍的定重切割系统改造是借鉴了相关先进经验,由西林钢铁公司自身自动化团队着手设计、实施的,经过一年多的使用统计,完全达到了预期效果。西林钢铁集团有限公司的技术人员对炼钢连铸机剪切系统进行了全面的系统改造,利用抗高温防水防腐蚀的称重传感器在连铸机各流制作静态钢坯秤,利用液压传动系统升降钢坯秤采集铸坯重量信息,通过PLC上下位机软件处理铸坯重量、长度信息与生产工艺参数间的逻辑、数学关系,同时进行统计记录,自主研发出一套西钢专有的钢坯定重剪切自动控制系统,在更好的完成生产的需要的同时,具有实现故障率低、钢坯定重合格率高、有效的保证轧钢成材率等优点。技术实施后,铸坯单重±5 kg的合格率稳定在80%以上,棒材工序成材率提高0.15%左右,取得了极大的经济效益和良好的社会效益。

关键词

连铸；定重切割；成材率；效益

分类号

TF341.6；TG48

栏　目

专业论坛

出　处

《冶金与材料》2016年第5期，第 53-62 页（共 10 页）

出版日期

2016-10-15

知网数据

下载 162 次，被引 7 次（截至 2026-09-29）

Abstract

Since 2008,on condition of the steel yields booming in China,facing with the excess of production capacities and the continuous fall in the price,the Chinese steelworks have had to seek some new breaks and innovations in their operation costs.Except for strengthening the energy recycling and reducing the consumption on the raw materials and fuels,varieties of new developed technologies have been adopted by Chinese steelworks,and the technique of cast slab's shearing by fixed weight in continuous casting is one of them.The reformation project on the system of cast slab shearing introduce in this paper,is designed and implemented by itself team in automation of Xilin Steel Company on the basis of using advanced experiences of of other steelworks as reference.The expected effects have achieved fully from the statistics result for the past one-year operation.the comprehensive reconstruction to the shearing system in the continuous cast machine of Xilin Steel works was done.The static steelyard balances for each casting flow were manufactured by the sensors with the properties of high temperature proof,water proof and anti-corrosion.The in formation of the weights of the cast slabs can be collected in the way that the measure balances were raised and fallen by the hydraulic transmission systems adopted.The logic and mathematic relations between weights and lengths of the cast slabs and technology parameters in production can be dealt by the software from PLC upper and lower computers.Besides,the statistics records were down as mean time.This proprietary set of automatic control system for cast slab's sect-cut by fixed weight that is researched and developed independently by Xilin Steel,can meet the need of the production,lower the failure rate,improve the acceptability and effectively ensure the qualified product ratio in steel rolling.After the implement of the technology,the acceptability of±5 kg for single billet can be stabilized above 80% and the qualified product ratio in the process of rods and bars can be boosted about 0.15%.Thus,a large benefit in economy and a good effectiveness in society are obtained in Xilin Steel Company.

Keywords

Continuous casting; shearing by fixed weight; qualified product ratio; benefit and effectiveness

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