随着高炉冶炼的强化,造渣制度的改善,生铁含硅量大幅度地降低,不仅提高了产量,而且改善了生铁的流动性,从而增强了渣铁对余铁凼(砂口、蔽渣器)、大沟等的化学侵蚀、渗透及机械冲刷,使余铁凼、大沟等使用寿命日益缩短,严量影响了高炉正常生产。因而应改进余铁凼砌筑方法和制作材料,来减轻工人劳动强度,延长其使用寿命,降低生产成本,保证高炉正常生产。 With the strengthening of blast furnace smelting and the improvement of slagging system, the silicon content of pig iron has been greatly reduced, which not only improves the output but also improves the fluidity of pig iron, thereby enhancing the effect of slag iron on Yutiangtai ), Chemical corrosion, infiltration and mechanical erosion such as ditches have shortened the service life of Yutiangtai and Dagou, and seriously affected the normal production of the blast furnace. Thus, the methods and materials of the Yu Tia Mia masonry should be improved to reduce the labor intensity of workers, prolong their service life, reduce the production cost and ensure the normal production of the blast furnace.