CAJ | 학술논문

为了提高转炉渣中CaO的利用率，降低转炉渣的碱度，通过试验研究了CaO粒度、粒状CaO的加入比例、温度和保温时间对含磷富集相的影响。结果表明，适当增大CaO的粒度有利于2CaO·SiO2-3CaO·P2O5固溶体的形成；当渣中粒状CaO的含量较低时，增加粒状CaO的加入比例，可促进渣中大颗粒固溶体的形成并减少渣中磷的含量，但当粒状CaO的含量较高时，2CaO·SiO2-3CaO·P2O5固溶体生成量减少；适当提高温度有利于脱磷反应的进行；随反应时间的延长，2CaO· SiO2-3CaO·P2O5固溶体的粒径增大，而且固溶体中磷的含量也不断增加。
위료제고전로사중CaO적이용솔，강저전로사적감도，통과시험연구료CaO립도、립상CaO적가입비례、온도화보온시간대함린부집상적영향。결과표명，괄당증대CaO적립도유리우2CaO·SiO2-3CaO·P2O5고용체적형성；당사중립상CaO적함량교저시，증가립상CaO적가입비례，가촉진사중대과립고용체적형성병감소사중린적함량，단당립상CaO적함량교고시，2CaO·SiO2-3CaO·P2O5고용체생성량감소；괄당제고온도유리우탈린반응적진행；수반응시간적연장，2CaO· SiO2-3CaO·P2O5고용체적립경증대，이차고용체중린적함량야불단증가。
For improving the efficiency of CaO and decreasing the basicity of converter, the effects of CaO particles, holding time and temperature on the formation of phosphor enrichment phase were investigated in this paper. The results showed that increasing the particle size of CaO properly was beneficial to the formation of 2CaO·SiO2-3CaO·P2O5 solid solution. When the granular CaO is low in slag, increasing the proportion of granular, CaO could promote the formation of 2CaO·SiO2-3CaO·P2O5 solid solution, but the 2CaO·SiO2-3CaO·P2O5 solid solution decreased when the granular CaO is high in slag. Increasing the temperature properly was beneficial to the dephosphorization reaction. Prolonging the reaction time could enlarge the size of 2CaO·SiO2-3CaO·P2O5 solid solution and improve the content of phosphorus in 2CaO·SiO2-3CaO·P2O5 solid solution.