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为了节约资金，发挥本厂设计、制造优势，自行设计制造了“３ｔ／ｈ两排大间距、曲线炉膛、炉胆热风”冲天炉并投人使用，设计时将风口结构、热风炉胆等进行了大胆改进，效果很好。实适证明该冲天炉具有结构先进合理、操作简单可靠、升温快、温度高、高温持续时间长、炉况稳定、机械化程度高等特点。在焦炭质量较差的情况下，各项经济技术指标均达到了设计要求。使用该炉后，与铁水温度有关的铸件废品下降２０％，每年节约废品损失５．７万元，而且比外购同规格的冲天炉节省资金６．６万元。
In order to save money, play factory design, manufacturing advantages, to design and manufacture their own “3 t / h two rows of large spacing, curve furnace, furnace hot air” cupola and put into use, the design of the tuyere structure, hot air oven and so on The bold improvement, the effect is very good. Practical proof of the cupola with advanced and reasonable structure, simple and reliable operation, fast heating, high temperature, high temperature for a long time, the furnace stable, high degree of mechanization and so on. In the case of poor coke quality, various economic and technical indicators have reached the design requirements. The use of the furnace, the temperature of molten iron and castings dropped 20%, saving 57,000 yuan per year waste, but also purchased than the same specifications of the cupola savings of 66,000 yuan.