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大型高炉炉底采用炭砖——高铝砖综合炉底或全炭炉底并增加冷却设施,一代寿命已超过国家现在的要求。但炉体寿命的矛盾已转向炉身。炉身结构型式(包括内衬和冷却设备)几十年来是五花八门的,都在探索适合本单位的较好的结构型式。武钢高炉炉身结构型式的演变也属于这个范畴。1970年以前的是四十年代的设计型式,(见图1)即炉腰是四层冷却板,炉身下部是支梁式水箱;粘土砖质厚生内衬。这种结构型式不适应日益强化的大高炉生产,多数新炉子投产一年以后冷却设备就开始烧坏,内衬严重受侵。从下表可以看出,1965年二高炉大修时仅生产一年半,内衬只剩170毫米厚了,说明局部已基本无砖。一高炉第一代生产三年半炉身下部外壳产生严重变形,说明在这段时间
Large-scale blast furnace bottom with carbon brick - high alumina brick comprehensive bottom or all-carbon bottom and increase the cooling facilities, generation of life has exceeded the current state requirements. However, the contradiction between the life of the furnace has turned to the shaft. The structure of the shaft (including the lining and cooling equipment) has been varied for decades and is exploring better structures for this unit. WISCO blast furnace shaft structure type evolution also belongs to this category. Before 1970 was the design of the forties, (see Figure 1) that the waist is a four-tier cooling plate, the lower part of the body is a beam tank; clay brick thick lining. This type of structure does not meet the increasingly intensive production of large blast furnace, most of the new furnace put into operation one year later the cooling equipment began to burn out, the lining of a serious invasion. As can be seen from the table below, when the blast furnace overhaul in 1965 was only produced for a year and a half, the lining was only 170 mm thick, indicating that there was basically no brick in the area. A blast of the first generation of three and a half years produces a serious deformation of the lower shell, indicating that during this time