论文部分内容阅读
目前影响高炉寿命的一个重要因素是炉身下部与炉腰、炉腹砖衬寿命短,一般耐火砖衬在0.5～1年内全部脱落,水冷壁过早暴露,因直接承受高温热腐蚀和炉料,气流冲刷而很快破损,致使炉壳发红,被迫停炉中修,所以提高炉身砖衬的使用寿命已成为延长高炉寿命极其重要的一个环节。1967年Konopinky教授在欧洲第一次将碳化硅砖用于高炉后很快在全世界得到推广。近十几年来,国外工程技术人员针对高炉生产特点经过试验研究,普遍认为除粘土结合碳化硅砖外,其他氮化硅结合,氧氮化
At present, an important factor affecting the life of the blast furnace is the lower part of the shaft body and the furnace waist. The refractory brick lining has a short service life. Generally, the refractory brick lining falls off completely within 0.5 to 1 year and is prematurely exposed by the water wall. Airflow scour quickly damaged, resulting in red shell, was forced to shut down in the repair, so to improve the service life of the brick body lining has become an extremely important part of extending the life of the blast furnace. In 1967, Prof. Konopinky was quickly promoted throughout the world after the first use of silicon carbide bricks in Europe for blast furnaces. Over the past decade or so, foreign engineering and technical personnel for blast furnace production characteristics through experimental study, in addition to clay generally considered in addition to silicon carbide bricks, other silicon nitride combination, oxynitride