CAJ | 학술논문

氧分压一直是影响烧结矿质量的重要因素.通过控制不同氧分压进行的烧结实验结果表明：在氧化性气氛下，生成的矿物主要有赤铁矿和铁酸钙，出现了针状铁酸钙晶形.氧分压从7.10×10-4至7.89×10-5 Pa 时，矿物组成区别不大，只是在局部产生少量的磁铁矿.氧分压从4.44×10-5 Pa 开始，赤铁矿明显减少而磁铁矿增加.在高碱度烧结矿中，为了获得合理的烧结矿矿物组成与形态结构，氧分压应控制在2.12×104～7.10×10-4 Pa之间.
양분압일직시영향소결광질량적중요인소.통과공제불동양분압진행적소결실험결과표명：재양화성기분하，생성적광물주요유적철광화철산개，출현료침상철산개정형.양분압종7.10×10-4지7.89×10-5 Pa 시，광물조성구별불대，지시재국부산생소량적자철광.양분압종4.44×10-5 Pa 개시，적철광명현감소이자철광증가.재고감도소결광중，위료획득합리적소결광광물조성여형태결구，양분압응공제재2.12×104～7.10×10-4 Pa지간.
Oxygen partial pressure has important effect on the sintering process of iron ores. Sintering experiments were carried out in different atmosphere conditions. It is found that the mineral composition of the sinter is mainly hematite and calcium ferrite, and acicular calcium ferrite appears in a stronger oxidation atmosphere. No obvious difference in mineral composition while the oxygen partial pressure is in the range of 7.10×10-4 to 7.89×10-5 Pa, but magnetite appears in local region. When the oxygen partial pressure decreases from 4.44×10-5 Pa, magnetite obviously increases but hematite simultaneously decreases. To achieve an appropriate mineral composition and structure of high basicity sinter, the oxygen partial pressure should be controlled in the range of 2.12×104 to 7.10×10-4 Pa.