基于PLC的LF炉投料控制系统设计  

LF Furnace Feeding Control System Based on PLC

作　　者：贾莉娜[1] 王道谊 Jia Lina;Wang Daoyi(Electrical and Automation Engineering College,Liaoning Institute of Science and Technology,Liaoning,Benxi,117004,China)

机构地区：[1]辽宁科技学院电气与自动化工程学院,辽宁本溪117004

出　　处：《仪器仪表用户》2023年第9期1-4,85,共5页Instrumentation

摘　　要：在LF炉冶炼中,准确、快速、灵活地进行配料,对LF炉冶炼具有重大的意义。本文根据LF炉工艺控制要求,基于西门子S7-1500 PLC完成了LF炉投料系统的设计,并且在南京钢铁联合股份有限公司4#LF精炼炉上进行了调试、运行。系统由主控制器S7-1500、ET-200MP从站1、ET-200MP从站2、ET-200M从站3、环网的交换机XC208、称量斗标定校称TP900精智面板组成。主控制器S7-1500对3个从站采集的信号进行分析处理,并输出控制信号。主控制器与从站之间利用PROFINET与PROFIBUS通讯,并利用XC208交换机组成环网,整个系统实现了LF炉炉料自动称重、传输、投料等功能。本系统经过运行,各项数据均满足LF投料系统生产要求,极大提高了投料的快速性和准确性。Accurate,fast,and flexible batching in LF furnace smelting is of great significance for LF furnace smelting.According to the process control requirements of LF furnace,the design and programming of LF furnace feeding system are completed based on Siemens S7-1500 PLC in this paper,and the debugging and operation are carried out on the 4#LF refining furnace of Nanjing Iron and Steel United Co.,Ltd.The system is composed of master controller S7-1500,ET-200MP slave station 1,ET-200MP slave station 2,ET-200M slave station 3,ring network switch XC208 and weighing bucket calibration TP900 intelligent panel.The main controller S7-1500 analyzes and processes the signals collected by three slave stations and outputs control signals.PROFINET and PROFIBUS communication are used between the master controller and the slave station,and XC208 switch is used to form a ring network.The whole system realizes the functions of automatic weighing,transmission and feeding of LF furnace charge.The system has proved that all data meet the production requirements of the LF feeding system.This greatly improves the speed and accuracy of feeding.

关 键 词：LF炉 称量控制 投料控制 称量模块 S7-1500PLC 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]