高炉含碱金属氧化物炉渣性能的试验研究  

Experimental Study on Capability of Blast Furnace Slag Containing Alkali

作　　者：王成立[1] 吕庆[2] 顾林娜[3] 李福民[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]河北理工大学冶金与能源学院,河北唐山063009 [3]广州钢铁企业集团有限公司,广东广州510381

出　　处：《东北大学学报（自然科学版）》2006年第1期45-48,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50374036);河北省自然科学基金资助项目(E2005000431)

摘　　要：对含有碱金属氧化物、TiO2的广钢高炉渣黏度、熔化性温度和脱硫能力进行了试验研究．结果表明：试验条件下，含碱炉渣黏度、熔化性温度比普通炉渣低，碱金属氧化物对酸性渣的熔化特性具有明显影响，碱度升高，影响减弱．MgO，Al2O3对含碱炉渣特性的影响规律与普通炉渣大体一致，碱度对含碱炉渣的脱硫能力具有明显影响．在广钢生产条件下，ω（K2O）＋ω（Na2O）应控制在0．9％以下，ω（CaO）／ω（SiO2）控制在0．96～1．06之间，ω（Al2O3）控制在14％以下，ω（MgO）控制在12％～15％之间能够获得较好的炉渣黏度、熔化性温度和脱硫能力．The blast furnace slag of Guangzhou Iron ＆ Steel Co. Ltd. contains alkali and TiO2. The viscosity, smelting temperature, desulphurizing capability of the slag were studied. The results revealed that the viscosity and smelting temperature are both lower than normal slag. Alkali has evident influence on the smelting characteristics of acidic slag. When the basicity increases, the influence decreases. Both the relationships between the characteristics of alkali-containing slag and its MgO content and Al2O3 content are almest the same to these between normal slag and them. Basicity has evident influence on desulphurizing capability of slag containing alkali. To acquire the suitable viscosity and smelting temperature and high desulphurizing capability under practical conditions, the slag composition should be kept in such a suitable range that K2O ＋ Na2O is less than 0.9%, CaO/SiO2 0.96-1.06, Al2O3 less than 14%, and MgO 12% -15%.

关 键 词：含碱高炉渣 黏度 熔化性温度 脱硫 

分 类 号：TF534.1[冶金工程—钢铁冶金]