冲天炉多功能自动巡回检测显示仪的研制

Development of the Multifunctional Apparatus of Automatical Roving Examination for Cupola

我国冲天炉近2万座,采用检测仪表的不足10％,而且存在两个问题。一是被检测量的显示很少数字化,二是信号检测点分散,不便于炉前工及时了解炉况进行综合处理。显然把冲天炉熔炼的主要工艺参数集中在一台仪器上用数字量自动巡回检测显示,将给熔炼过程的监控带来很大的方便。 1 原理与特点 1.1 需检测显示的主要参量 (1) 铁水温度该参量是衡量铁水冶金质量和指导炉前处理工艺的重要指标,也是判断熔炼效果的主要依据。 (2) 风量该参量是获得稳定高温且熔化节奏合理的铁水的重要调节量,冲天炉热工质量好坏主要取决于风焦平衡度。焦耗一定时,合理调整鼓风量就成为最主要的控制手段,

To meet the needs of automatic examine for the cupola, A device displaying the main parameters in the process of synthetic test of foundry production has been developed. A succinct circuit is used to form the data collection system with multichannel and variable gain. It has voltage and current signal change contact. The volume and pressure of air, the temperature of liquid iron and the contents of waste air can be tested and displayed automatically or handly. The digital display of the apparatus is clear and accurate and the performance stable. And it is convenient to adjust. Compared with the instruments available, it has the advantages of protecting from disturbance and low cost.