| 细菌脱硫抑制硫化矿自燃实验研究 |
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| 引用本文： | 王洪江,吴爱祥,罗飞侠,张旭,陈嘉生,史良贵. 细菌脱硫抑制硫化矿自燃实验研究[J]. 北京科技大学学报, 2011, 33(4): 395-399 |
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| 作者姓名： | 王洪江 吴爱祥 罗飞侠 张旭 陈嘉生 史良贵 |
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| 作者单位： | 北京科技大学土木与环境工程学院;东方汽轮机有限公司;铜陵化工集团;新桥矿业有限公司; |
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| 基金项目： | 国家自然科学基金资助项目(No.50774011); 新世纪优秀人才支持计划资助项目(NECT--07--0070); 国家自然科学重点基金资助项目(No.50934002); 长江学者和创新团队发展计划资助项目(No.IRT0950) |
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| 摘 要： | 通过室内细菌脱硫柱浸实验,将硫化矿石颗粒表面的硫降低到临界值以下,使脱硫后矿石自燃倾向性等级下降.结果表明,44d最大脱硫率可达61.82%,脱硫率随着时间延长而逐渐增大.对矿石自燃倾向性分析显示,硫化矿石的5d氧化增重率从2.044%降低到0.902%,自燃点从209.6℃升高到319.8℃,自燃倾向性等级由Ⅰ级降为Ⅲ级,降低了硫化矿石的自燃风险.
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| 关 键 词： | 硫化矿 自燃 脱硫 细菌 |
Experimental study on inhibiting the spontaneous combustion of sulfide ores by bacteria desulfurization |
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| WANG Hong-jiang,WU Ai-xiang,LUO Fei-xia,ZHANG Xu,CHEN Jia-sheng,SHI Liang-gui. Experimental study on inhibiting the spontaneous combustion of sulfide ores by bacteria desulfurization[J]. Journal of University of Science and Technology Beijing, 2011, 33(4): 395-399 |
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| Authors: | WANG Hong-jiang WU Ai-xiang LUO Fei-xia ZHANG Xu CHEN Jia-sheng SHI Liang-gui |
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| Affiliation: | WANG Hong-jiang1),WU Ai-xiang1),LUO Fei-xia2),ZHANG Xu1),CHEN Jia-sheng3),SHI Liang-gui4) 1) School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2) Dongfang Turbine Co.Ltd.,Deyan 618000,China 3) Tongling Chemical Industry Group Co.Ltd.,Tongling 244023,China 4) Xinqiao Mining Company Limited,Tongling 244132,China |
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| Abstract: | Bacterial desulfurization and column leaching were used to decrease the content of sulfur in sulfide ores' surface to a extreme low level even below the critical value so that the spontaneous combustion tendency of the desulfurized ores weakened.The experiment results show that the maximal desulfurization rate can reach 61.82% after 44 d treatment,and gradually increases with prolonging time.Based on the analysis of the spontaneous combustion tendency of sulfide ores,it is indicated that the oxidation weigh... |
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| Keywords: | sulfide minerals spontaneous combustion desulfurization bacteria |
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