CAJ | 학술논문

为解决硫化矿井下堆存易发生自燃这一问题，进行了高含硫矿石的细菌脱硫试验，对比了不同矿石粒径条件下的脱硫效果，对脱硫反应表面进行了扫描电镜观察，并对细菌脱硫反应进行动力学分析。结果表明：细菌液计脱硫率与矿石粒径呈反比，当矿石粒径为3 mm时，取得了最大脱硫率为22.56%；脱硫反应对矿石表面侵蚀严重，矿石表面的硫含量由43%左右降低至15%以下；6组试验矿石的表面脱硫率均为65%左右，矿石的可燃性降低；反应受内扩散和化学反应共同控制，其中内扩散为主要因素。
위해결류화광정하퇴존역발생자연저일문제，진행료고함류광석적세균탈류시험，대비료불동광석립경조건하적탈류효과，대탈류반응표면진행료소묘전경관찰，병대세균탈류반응진행동역학분석。결과표명：세균액계탈류솔여광석립경정반비，당광석립경위3 mm시，취득료최대탈류솔위22.56%；탈류반응대광석표면침식엄중，광석표면적류함량유43%좌우강저지15%이하；6조시험광석적표면탈류솔균위65%좌우，광석적가연성강저；반응수내확산화화학반응공동공제，기중내확산위주요인소。
Acidophilus bacteria desulfurization column leaching was used to explore the effect of the desulfurization of metal sulfide ore and the feasibility of inhibiting the spontaneous combustion. The ore surface of the desulfurization of ore with different particles sizes and the kinetics of desulfurization were analyzed. The results show that the bacterial desulfurization rate is inversely proportional to the ore particle size. The desulfurization rate achieves the maximum of 22.56% when the ore particle size is 3mm. The sulfur content of the ore surface reduces from about 43% to 15% or less. The surface desulfurization rate of 6 groups is 65%. The ore surface is eroded severely after the desulfurization reaction. The internal diffusion influences the desulfurization reaction most, followed by the chemical reaction.