论文部分内容阅读
日本川崎公司开发了一种KTB(川崎顶吹氧)工艺,即在循环脱气装置中真空处理的同时吹氧的工艺。氧气是通过从顶部插入脱气容器的水冷氧枪吹入。该工艺的开发可以使炼钢生产者用转炉冶炼超低碳钢时有较高的生产率,同时使初炼炉炉衬有较长的使用寿命。在真空下向钢水中吹氧,释放出的co直接在钢水上面氧化成co_2,二次燃烧释放出大量热量,大大减少了真空室中因飞溅而累积的金属。此外,明显减少了真空处理过程中钢水的辐射热损失。
Kawasaki Japan has developed a KTB (Kawasaki Top Blowing) process, which is a vacuum degassing process while blowing oxygen process. Oxygen is blown in through a water-cooled oxygen gun inserted into the degassing vessel from the top. The process has been developed to enable steelmakers to achieve higher productivity when smelting ultra-low carbon steel with a converter while providing a longer service life for the primary furnace lining. Oxygen is blown into the molten steel under vacuum and the released co oxidizes directly to co_2 on the molten steel. The secondary combustion releases a large amount of heat, greatly reducing the metal accumulated in the vacuum chamber due to splashing. In addition, the radiant heat loss of the molten steel during vacuum processing is significantly reduced.