论文部分内容阅读
七八年我厂将一台1吨/小时多排小风口冲天炉改为“倒置式两排大间距”冲天炉。改炉前后有关工艺参数和基本炉型如表1,图1。通过几年来的生产实践和观察,认为这种炉型生产稳定,操作简便,其主要效果如下: 1、铁水温度显著提高,铁焦比提高。我厂所用焦炭质量很差,固定碳含量低,强度低,反应性能高。采用“多排小风口”时,总焦比为1:7.87,铁水温度仅1300℃左右。由于炉温不高,经常采用补加电石和碎石墨电极的方法提高
In seven or eight years I plant will be a 1 ton / hour multi-row small outlet cupola changed to “inverted two rows of large spacing cupola. Before and after the furnace process parameters and the basic furnace type in Table 1, Figure 1. Through several years of production practice and observation, that the furnace production is stable, easy to operate, its main effects are as follows: 1, a significant increase in hot metal temperature, iron coke ratio increased. The quality of coke used by our factory is very poor, with low carbon content, low strength and high reactivity. The use of ”multi-row small outlet", the total coke ratio of 1: 7.87, hot metal temperature is only about 1300 ℃. As the furnace temperature is not high, often with additional calcium carbide and broken graphite electrodes to improve the method