论文部分内容阅读
问:转炉炼钢为什么可以不用任何外来燃料? 答:转炉炼钢不用任何外来燃料,是与平炉、电炉及其他炼钢炉炼钢的主要区别。它是靠鉄水本身所含的几个元素(矽、锰、磷、碳等)的燃烧而发生大量热量进行炼钢的。当转炉开始鼓风吹炼时,鉄水温度为1300～1400℃,随着鉄水中的矽、锰、磷、碳等元素与鼓入空气中的氧起氧化作用,同时放出了大量热量,从而使温度提高到1600～1650℃。有了这样高的温度,就有可能完成炼钢过程中的各种化学反应。各元素的发热量不一定。矽的发热量最高,当铁水中含矽量为1％时,可提高铁水温度170℃(这个温度的计算中包括氮所带走的热量,不包括加入石灰时所吸收的热量)。磷的发热量也很高,和矽差不多,锰次之。鉄氧化1％时可以提高温度25℃,碳氧化生成一氧化炭和二氧化碳,1％的炭燃烧成一氧化碳时,可提高温度5℃,氧化成二氧化碳时可提高温度100℃,炭提高多少温度视吹炼中所生成的二氧化碳多少而定,因此我们希望炭更多的生成二氧化炭。问:什么是侧吹碱性转炉? 答:侧吹转炉是区别于底次转炉和顶吹转炉,所谓侧吹是指鼓入转炉的风是由炉子侧面吹进去的。侧
Q: Why can not converter use any foreign fuel? A: Converter steelmaking without any foreign fuel, is the main difference between flat steel, electric furnace and other steelmaking steelmaking. It is based on the water itself contains several elements (silicon, manganese, phosphorus, carbon, etc.) burning and a lot of heat for steel. When the converter starts blowing blowing, the water temperature is 1300 ~ 1400 ℃, with the silicon in the water, manganese, phosphorus, carbon and other elements and the oxygen in the air into the air oxidation, at the same time release a lot of heat and thus The temperature is raised to 1600 ~ 1650 ℃. With such a high temperature, it is possible to complete a variety of chemical reactions in the steelmaking process. The elements of the heat is not necessarily. Silicon has the highest heating value. When the content of silicon in molten iron is 1%, the temperature of hot metal can be increased by 170 ℃ (this calculation includes the amount of heat carried by nitrogen, not including the heat absorbed when lime is added). Phosphorus heat is also very high, and silicon almost manganese second.鉄 oxidation 1% can increase the temperature of 25 ° C, carbon monoxide and carbon dioxide into carbon dioxide, 1% carbon burning into carbon monoxide, the temperature can be increased 5 ° C, the oxidation of carbon dioxide can increase the temperature of 100 ° C, Depending on how much carbon dioxide is generated during blowing, we expect more carbon to form carbon dioxide. Q: What is the side-blown alkaline converter? A: The side-blown converter is different from the bottom converter and top-blown converter. The so-called side-blown means that the air blown into the converter is blown into the side of the converter. side