工程科学学报2017，Vol.39Issue(12)：1822-1827,6.DOI:10.13374/j.issn2095-9389.2017.12.007
FeV50合金浇铸沉降理论的应用及其影响因素
Theoretical application and factors influencing casting settlement of FeV50 alloy
摘要
Abstract
The process of separation of slag and alloy and distribution of vanadium in casting slag during the casting process of multiperiod FeV50 preparation were analyzed using the principle of infinite fluid gravitational settling. The effects of slag viscosity, particle size, casting temperature, molten-slag thickness, and insulation system on total vanadium ( TV) content in slag were investi-gated. The analysis demonstrates that vanadium mainly comprises vanadium oxide and incompletely deposited primary ferrovanadium alloy in the casting slag. The sedimentation rate of settlement alloy increases with an increase in the particle size and decreases with an increase in the slag viscosity. The dropping time of FeV50 alloy and floating time of molten slag is 24. 9 and 1. 2 min, respectively, when the casting conditions are as follows—casting temperature:1850℃, slag layer thickness:50 mm, particle size:100μm, and slag composition mass fraction:65. 2% Al2 O3 , 15. 5% CaO, 14. 6% MgO, 1. 9% Fe2 O3 , and 0. 9% SiO2 . Through optimization ex-periments, the average vanadium mass content in the slag is reduced from 1. 39% to 0. 58% for the following casting conditions—slag layer thickness:35 mm, casting temperature:1900℃, slag component:60%-65% Al2 O3 , 15%-20% CaO, 9%-15% MgO;and casting insulation thickness:9 cm.关键词
FeV50/合金沉降/浇铸/斯托克斯定律/熔渣Key words
FeV50/alloy settlement/casting/Stokes law/molten slag分类
矿业与冶金引用本文复制引用
余彬,周恒,孙朝晖,王莹,陈海军..FeV50合金浇铸沉降理论的应用及其影响因素[J].工程科学学报,2017,39(12):1822-1827,6.基金项目
国家自然科学基金资助项目(51505046) （51505046）
