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已设计成功一种不用电能而用矿物能炼钢的熔炉,该炉利用高灰分煤(或焦炭)和天然气熔化废钢和直接还原铁,通过高速氧燃烧嘴和喷枪把高品位的氧吹入熔池。此技术集多种高效工艺于一炉,如强化熔池搅拌,扩大反应区域,提高供氧速度用于二次燃烧,连续向熔池供碳,高效利用废气余热等。 60t熔炉是具有弧形炉底的4m×4m的圆柱形容器,安装5支垂直的煤氧烧嘴和喷枪以及倾动和旋转机构。枪和烧嘴通过与炉体的倾动和旋转机构连接的机械完成升降动作。烧嘴的中心管通煤气,环缝通氧气,喷口为拉瓦尔型。已设计成复合喷烧嘴,在不改变喷口流量的情况下,完成二次燃烧任务。喷枪的设计可以保证最多的热量传输给熔
Has successfully designed a furnace that can be steel-mined without electricity using electricity that uses high-ash coal (or coke) and natural gas to melt scrap and direct reduced iron and blow high-grade oxygen into the melt through a high-velocity oxygen burner and a spray gun Pool. This technology combines a variety of high-efficiency processes in a furnace, such as enhanced pool stirring, expanding the reaction area, increase the oxygen rate for secondary combustion, continuous carbon supply to the pool, efficient use of waste heat and so on. The 60t furnace is a 4m x 4m cylindrical vessel with an arc-shaped hearth and five vertical coal-fired burners and guns, as well as tilting and swiveling mechanisms. Gun and burner through the body tilting and rotating mechanism connected to complete the lifting movements. The center of the burner tube through the gas, ring seam through the oxygen, the nozzle is Laval type. Has been designed as a composite nozzle, without changing the flow of the spout to complete the second combustion task. The gun is designed to ensure maximum heat transfer to the melt