【摘要】 走访中看到一些地区的冲天炉仍在发挥作用,并生产出口铸件,但亦存在一些问题。从提质增效的角度出发,介绍了几项工艺技术:炉温、熔渣与低S低O铁液的关系,O的利用,控制湿度送风,Si C的使用以及炉内矿物还原的实例等。指出:(1)对冲天炉要两分法,冲天炉有存在空间;(2)冲天炉应通过技术改造,进一步提高铁液质量;(3)冲天炉减排,废弃物再生利用,发展绿色铸造大有可为;(4)焦炭冲天炉、天然气冲天炉、感应炉、燃气回转炉各有所长,应在竞争中谋发展,在发展中求成长。更多还原

【Abstract】 It was found in the visit process that the cupola still plays important roll and is used also for production of exporting castings,however,in the same time,some problems are existing. From the point of quality improvement and efficiency increase several process techniques were introduced:the relationship between furnace temperature,slag and low-S low-O iron melt,usage of O2,blast with controlled moisture,usage of Si C,as well as the example of mineral deoxidation,et al. It was pointed out:(1)The cupola should be viewed with dichotomy,cupola still has existing space.(2)Quality of cupola iron melt should be further elevated through technology reformation.(3)Emission reduction of cupola,and regeneration utilization of wastes,to develop green foundry has a brilliant future.(4)Each one of coke cupola,natural gas cupola,induction furnace and natural gas rotary drum furnace has its good points,should seek develop in competition,seek growth in competition.更多还原