The preventive measures for the harmful defects of alkali metals are as follows: 1, reducing the alkali metals content in the raw materials; 2, increasing the MgO content of the sinter , decreasing the basicity of slag , decreasing the Si content of the pig iron, increasing relative slag volume; 3 , introducing prereduced ore pellets or partly reducted sinter; 4increasing the ability of coke resisting alkali metals; 5, using refractories that have the ability of resisting corrasion of alkali metals; 6 , cleaning the blast furnace periodically. The above recommendations are necessary for decreasing the circulation and accumulation of alkali metals effectively in blast furnace, reducing the harmful influence of alkali metals on blast furnace, increasing the smelting intensity, decreasing the coke rate, improving the gas permeability.

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Coke properties has been studied by high temperature SiC oven日韩在线观、infrared gas analyzer and X-ray diffraction. First set forward the relationship between UPC and coke reactivity, strength, fine coke and coke graphitization, and creatively find the graphitization degree of coke tends to 100% when temp. reaches to 1350℃ UPC is profitableness to coke properties;②The effect of UPC on liquid slag distribution and flow functions in experiment oven has been studied by mathematics simulation The effect of UPC on taking shape and dropping of high titanium-bearing B. F. slag has been studied by using high temp. oven simulation cohesive zone and dropping zone of blast furnace.

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blast furnace coke：高爐煤焦,鼓風(fēng)煤焦

高爐焦 furnace coke | 高爐煤焦,鼓風(fēng)煤焦 blast furnace coke | 高鋁紅柱石 mullite

coke iron：焦炭生鐵

coke furnace || 焦炭爐 | coke iron || 焦炭生鐵 | coke mill || 焦炭球磨機

coke pig iron：焦炭生鐵,煤焦生鐵

焦炭爐,煤焦爐 coke furnace | 焦炭生鐵,煤焦生鐵 coke pig iron | 焦油 tar