材料期刊网

为了解工业副产品AF3FTM替代萤石在炼钢生产中的冶金效果,针对两种化渣剂在冶金过程中的特定用途,分别进行熔渣熔化特性测试、铁水脱硫及钢水脱硫试验,对比两种化渣剂的化渣助熔及脱硫效果.试验对比发现,AF3FTM相对于萤石球具有更加优良的冶金效果,能更好地降低石灰的熔点,与萤石球同为10％的配比时,可使石灰熔点低45℃;使用AF3FTM作为化渣剂的炉次成渣更快、脱硫效果更好,同样试验环境下,达到相同的脱硫效果时,AF3FTM能比萤石球节约至少20％的用量,可减少含氟废物的排放约10％左右;从资源、成本、环境、冶金效果等角度综合分析其在冶金行业中具有推广应用价值.

In order to understand the metallurgical effect of industrial by-product AF3FTM which can be as the substitute of fluorite in steelnaking process,slag melting characteristics test,hot metal desulphurization and molten steel desulfurization experiments had been done to compare the slagging and desulfurization effect between this AF3 FTM and fluorite slagging agents.Through those experiments it can be concluded that AF3 FTM has better metallurgical effect than fluorite ball and can reduce the lime melting point to lower level.When the ratio of this two slagging agents is 10％,the melting point of lime with AF3FTM is reduced by 45 ℃.The slag which contains AF3FTM can achieve slag formation faster and has better desulfurization result.Under the same experiment conditions,AF3FTM can save at least 20％ in terms of usage,and resulted the fluoride waste emissions is reduced by 10％ compared with fluorite ball.Therefore,this new slagging agent can find its valuable application in the metallurgical industry,analyzed comprehensively from the perspectives of resources,cost,environmental and metallurgical effect.