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目前,焦炉炉体的主要问题,是炉头裂损,影响生产,影响炉体寿命的问题。炉头部位的寿命长短,是决定炉体寿命长短的主要因素之一。一般说来,一代硅砖炉头砌体使用寿命为5～10年,经修后炉头平均连续使用2～3年即须翻修更新一次,长者可达五年,短者不过一年。因此,要维护炉体,延长焦炉炉体寿命,主要方法之一,是采用一种耐热性能优越的材料,来代替目前广泛采用的硅砖砌筑炉头或翻修更换炉头。目前,热修炉头仍然用硅砖砌筑。用这种方法翻修炉头存在如下几个问题:(1)砖间接缝不紧密;(2)硅砖砌后受激热易产生裂缝;(3)施工不便。
At present, the main problem of the coke oven furnace is the cracking of the burner, which affects the production and affects the life of the furnace. The length of life of the burner head is one of the main factors that determine the life of the furnace. Generally speaking, the service life of a generation of brick brick masonry is 5 to 10 years. After being repaired, the average continuous use of burners must be renovated and renewed once. The elderly can be up to five years, but the short ones are not more than one year. Therefore, to maintain the furnace body and extend the life of the coke oven body, one of the main methods is to use a material superior in heat resistance to replace the currently widely used silicon brick masonry burners or to renovate and replace the burners. At present, the thermal repair head is still built with silica bricks. The use of this method to renovate the burner has the following problems: (1) The bricks are not closely seamed; (2) The heat induced by silicon bricks is prone to cracks; (3) The construction is inconvenient.