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影响炉体使用寿命的因素很多.如炉子的结构尺寸,筑炉材料的选择,施工质量,溶渣的侵蚀.机械振动及司炉工的操作水平等,其中筑炉材料的选择尤为重要.1984年大连第二轧钢厂线材加热炉改造时,采用了粘土浇注料整体浇注,炉子整体性和严密性均好,至1990年,该炉子已连续运行了6年,在这期间.炉子内壁因受溶渣的侵蚀,火焰的冲刷及开凿侧烧嘴孔时的机械振动,造成炉子内壁局部脱落、裂缝、凹凸不平(缺陷处深度可达100mm左右),致使炉体损坏严重,炉门四周串火。按常规,炉体加热段必须全部拆除重新浇注,但该厂应用了鞍山焦化耐火材料设计研究院研制,由海城东方耐火材料总厂生产的DPB高温补炉料,对炉子
There are many factors affecting the service life of the furnace, such as the size of the furnace structure, the choice of construction materials, the quality of the construction, the erosion of the molten slag, the mechanical vibration and the operating level of the fireman, of which the choice of construction materials is especially important. Dalian second rolling mill wire furnace transformation, the use of clay pouring material as a whole pouring, the integrity and tightness of the furnace are good, to 1990, the furnace has been running continuously for 6 years, during this period due to dissolved by the furnace wall Erosion of slag, erosion of flame and mechanical vibration when cutting side burner hole, resulting in partial loss of the furnace wall, cracks, bumpy (defect depth of up to 100mm or so), resulting in serious damage to the furnace, the furnace around the string fire. Conventionally, the furnace heating section must be demolished all the re-pouring, but the plant used Anshan Coking Refractory Design and Research Institute developed by the Haicheng Oriental Refractory Plant production DPB high-temperature refueling, the furnace