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目前,高炉炉龄由于其易损部位被浸蚀而受到限制。如图1所示,高炉易损部位包括炉底和炉缸部位、风口区域及炉腹、炉腰和炉身下部。 1.炉底和炉缸 (1)炉底部位自从采用全碳质冷却炉底之后,炉底的蚀损已不再是影响炉龄的主要因素。目前流行的冷却方式有如下几种: 1)液体冷却。冷却介质如水或油从一系列水冷管中通过。水冷管安置在炉底底层粘土砖上面或下面。 2)空气冷却。用风机将冷空气吹入炉
Currently, blast furnace age is limited by the erosion of vulnerable parts. Shown in Figure 1, the blast furnace vulnerable parts including the hearth and hearth area, tuyere area and belly, waist and the lower part of the shaft. 1. Furnace Bottom and Hearth (1) Bottom of the Furnace The erosion of the bottom of the furnace ceases to be a major factor in furnace age since the use of a fully carbonaceous cooling bottom. The prevailing cooling methods are the following: 1) liquid cooling. Cooling medium, such as water or oil, passes through a series of water-cooled tubes. Water pipes are placed above or below the bottom clay brick. 2) Air-cooled. Blow cold air into the furnace with a fan