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随着炼铁技术的发展,国内外大型高炉普遍采用了高压操作,国外很多高炉已经实行了超高压操作,炉顶压力达到了2.5～3.0kg/cm~2。无论是钟式结构炉顶,或是无钟炉顶要实施高压操作,必须要解决密封问题。现对国外(主要是日本)钟式结构的炉顶装料设备的密封形式及其选用的密封材料,作一介绍,以提高我国高炉炉顶装料设备的密封技术,促进高炉技术的发展。
With the development of ironmaking technology, large blast furnaces at home and abroad generally adopt high-pressure operation. Many foreign blast furnaces have implemented ultra-high pressure operation, and the pressure on the top of the furnace has reached 2.5-3.0kg / cm ~ 2. Whether it is bell-type roof structure, or no bell roof to carry out high-pressure operation, we must solve the sealing problem. At present, the sealing forms of the dome-top charging equipment of bell-shaped bell structures in foreign countries (mainly Japan) and the sealants selected by them are introduced to improve the sealing technology of blast furnace top loading equipment and to promote the development of blast furnace technology.