一、问题的提出近年来,随着高炉冶炼强化程度的提高,炉缸炉底侵蚀问题重新引起了高炉工作者的重视,不少高炉炉役后期炉缸冷却壁的水温差大大超过了安全限度,有的甚至酿成了恶性事故。在武钢,虽然采用了冷却能力强的水冷炭砖炉底,延长了炉缸炉底寿命,但在近两年,几座高炉仍相继出现了炉缸局部冷却壁水温差突然升高现象。为了使水温差高的炉缸恢复正常,实现高炉安全长寿高产稳产, First, the issue raised In recent years, with the enhancement of blast furnace smelting, hearth erosion at the hearth reemerged the attention of blast furnace workers, many blast furnace late furnace hearth cooling water temperature greatly exceeded the safety margin Some even led to a serious accident. In Wuhan Iron and Steel, although the use of cooling capacity of water-cooled carbon brick bottom, extending the hearth furnace life, but in the past two years, several blast furnace still appeared in the local cooling of the hearth water temperature suddenly increased phenomenon. In order to make the water temperature difference high hearth back to normal, to achieve safe and long life blasting high yield,