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, Nearly 20,000 cupola in China, using less than 10% of the instrumentation, and there are two problems. First, the measured amount of the display is rarely digitized, the second is the signal detection points scattered, inconvenient for the furnace workers timely understanding of furnace conditions for comprehensive treatment. Obviously the cupola melting process parameters mainly concentrated on a single instrument with digital automatic tour test shows that the melting process will bring great convenience monitoring. 1 Principle and Features 1.1 The main parameters to be detected (1) The temperature of molten iron This parameter is an important index to measure the quality of molten iron and metallurgy and guide the pre-treatment process, and also the main basis to judge the melting effect. (2) The amount of air The parameter is to obtain a stable high temperature and the melody rhythm of a reasonable adjustment of the amount of hot metal, cupola thermal quality is mainly depends on the degree of balance of wind coke. Coke consumption is fixed, the reasonable adjustment of the amount of air blowing has become the most important control means,