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第4期 王洪江等:细菌脱硫抑制硫化矿自燃实验研究 ·399· 表4细菌脱硫前后硫化矿石5d增重率 high sulfur metal mine.Min Saf Enriron Prot,2002,29(2):21 Table 4 Weight gain rate of sulfide ores in 5 d before and after bacterial (邬长福.高硫金属矿床内因火灾及其灭火措施.矿业安全与 desulfurization 环保,2002,29(2):21) 实验 5d增重 5d增重率 白燃倾向 [2]Qian B Q.Mechanism and prevention measures for underpit ore 矿样 编号 率/% 平均值/% 性等级 autoignition in Tongshan Copper Mine.Nonferrous Met.2005,57 (3):99 1 1.97 (钱柏青.铜山铜矿井下采场硫化矿石自燃的机理探讨及预 2 2.03 防措施.有色金属,2005,57(3):99) 脱硫前 3 2.07 2.044 [3]LiZ J.Wu C.Zhou B.Laboratory comprehensive judgement of 4 2.10 the oxidation of sulfide ores.Copper Eng.2003(1):40 2.05 (李孜军,吴超,周勃.硫化矿石氧化性的实验室综合评判 1 0.88 铜业工程,2003(1):40) 2 0.92 [4] Luo FX.Wang HJ.Wu A X.Analysis on feasibility of removing 脱硫后 3 0.88 0.902 sulfur from metal sulfide ores with microorganism.J Sof Sci Techn- 4 0.93 ol,2009.5(4):23 5 0.90 (罗飞侠,王洪江,吴爱祥.金属硫化矿的微生物脱硫可行性 分析.中国安全生产科学技术,2009,5(4):23) 表5细菌脱硫前后硫化矿石自燃点 [5]Monticello D J.Biodesulfurization and the upgrading of petroleum Table 5 Spontaneous combustion points of sulfide ores before and after distillates.Curr Opin Biotechnol.2000.11(6):540 bacterial desulfurization [6]Kuenen J G,Robertson L A.The use of natural bacterial popula- tions for the treatment of sulphur-containing wastewater.Biodegra- 矿石 自热点/℃ 自燃点/℃ 自燃倾向性等级 dation,1992,3(2/3):239 脱硫前 133.4 209.6 [7]Gasiorek J.Microbial removal of sulfur dioxide from a gas stream 脱硫后 319.8 Ⅲ Fuel Process Technol,1994.40(2/3):129 [8]Cardona I C.Marquez M A.Biodesulfurization of two Colombian 4结论 coals with native microorganisms.Fuel Process Technol,2009.90 (9):1099 (1)细菌脱硫柱浸实验表明,浸出过程使得原 [9]Boon M,Heijnen JJ.Chemical oxidation kinetics of pyrite in bi- oleaching processes.Hydrometallurgy,1998.48(1):27 本光滑致密矿石表面变得十分疏松,腐蚀痕迹明显. [10]Fang K T.Uniform Design and Its Table.Beijing:Science 矿石脱硫率随时间延长而上升,柱2的脱硫率增长 Pre5s,1994 速度最快,而柱5的增长速率最慢,明显与布液强度 (方开泰.均匀设计与均匀设计表.北京:科学出版社,1994) 有关 [11]He B H.Wu C.Test method of spontaneous combustion tenden- (2)细菌脱硫前后氧化增重实验表明,脱硫前 ey of sulfide ores in laboratory and its application.Saf Enriron Eng,2006,13(1):92 原矿样的5d氧化增重时是脱硫后的2倍,矿石自燃 (贺兵红,吴超.硫化矿石自燃倾向性的实验室测定方法与 倾向性等级由I级降到Ⅲ级,矿石不易自燃 应用.安全与环境工程,2006,13(1):92) (3)细菌脱硫前后矿石自热点与自燃点测试结 [12]Zhao J.Zhang X K.Wang Y H.Study on spontaneous combus- 果表明,原矿样的自热点、自燃点都较低,细菌脱硫 tion tendency of sulfide ores by TPO method.Saf Sci Technol, 后矿样无明显自热点,自燃点较脱硫前升高了 2009,5(2):24 110.2℃.硫化矿经细菌脱硫后,其自热点、自燃点 (赵军,张兴凯,王云海.基于程序升温氧化法的硫化矿石自 燃倾向性研究.中国安全生产科学技术,2009,5(2):24) 都大幅度升高,矿石自燃倾向性等级由I级降到 [13]Li Z J.Investigation on the Mechanism of Spontaneous Combustion Ⅲ级 of Sulphide Ores and the Key Technologies for Preventing Fire [Dissertation].Changsha:Central South University,2007 参考文献 (李孜军.硫化矿石自燃机理及其预防关键技术研究[学位 [1]Wu C F.The intemnal caused fire and its extinguishing measures of 论文].长沙:中南大学,2007)第 4 期 王洪江等: 细菌脱硫抑制硫化矿自燃实验研究 表 4 细菌脱硫前后硫化矿石 5 d 增重率 Table 4 Weight gain rate of sulfide ores in 5 d before and after bacterial desulfurization 矿样 实验 编号 5 d 增重 率/% 5 d 增重率 平均值/% 自燃倾向 性等级 1 1. 97 2 2. 03 脱硫前 3 2. 07 2. 044 Ⅰ 4 2. 10 5 2. 05 1 0. 88 2 0. 92 脱硫后 3 0. 88 0. 902 Ⅲ 4 0. 93 5 0. 90 表 5 细菌脱硫前后硫化矿石自燃点 Table 5 Spontaneous combustion points of sulfide ores before and after bacterial desulfurization 矿石 自热点/℃ 自燃点/℃ 自燃倾向性等级 脱硫前 133. 4 209. 6 Ⅰ 脱硫后 — 319. 8 Ⅲ 4 结论 ( 1) 细菌脱硫柱浸实验表明,浸出过程使得原 本光滑致密矿石表面变得十分疏松,腐蚀痕迹明显. 矿石脱硫率随时间延长而上升,柱 2 的脱硫率增长 速度最快,而柱 5 的增长速率最慢,明显与布液强度 有关. ( 2) 细菌脱硫前后氧化增重实验表明,脱硫前 原矿样的5 d 氧化增重时是脱硫后的2 倍,矿石自燃 倾向性等级由Ⅰ级降到Ⅲ级,矿石不易自燃. ( 3) 细菌脱硫前后矿石自热点与自燃点测试结 果表明,原矿样的自热点、自燃点都较低,细菌脱硫 后矿样无明显自热点,自燃点较脱硫前升高了 110. 2 ℃ . 硫化矿经细菌脱硫后,其自热点、自燃点 都大幅度升高,矿石自燃倾向性等级由Ⅰ级降到 Ⅲ级. 参 考 文 献 [1] Wu C F. The internal caused fire and its extinguishing measures of high sulfur metal mine. Min Saf Environ Prot,2002,29( 2) : 21 ( 邬长福. 高硫金属矿床内因火灾及其灭火措施. 矿业安全与 环保,2002,29( 2) : 21) [2] Qian B Q. Mechanism and prevention measures for underpit ore autoignition in Tongshan Copper Mine. Nonferrous Met,2005,57 ( 3) : 99 ( 钱柏青. 铜山铜矿井下采场硫化矿石自燃的机理探讨及预 防措施. 有色金属,2005,57( 3) : 99) [3] Li Z J,Wu C,Zhou B. Laboratory comprehensive judgement of the oxidation of sulfide ores. Copper Eng,2003( 1) : 40 ( 李孜军,吴超,周勃. 硫化矿石氧化性的实验室综合评判. 铜业工程,2003( 1) : 40) [4] Luo F X,Wang H J,Wu A X. Analysis on feasibility of removing sulfur from metal sulfide ores with microorganism. J Saf Sci Techn￾ol,2009,5( 4) : 23 ( 罗飞侠,王洪江,吴爱祥. 金属硫化矿的微生物脱硫可行性 分析. 中国安全生产科学技术,2009,5( 4) : 23) [5] Monticello D J. Biodesulfurization and the upgrading of petroleum distillates. Curr Opin Biotechnol,2000,11( 6) : 540 [6] Kuenen J G,Robertson L A. The use of natural bacterial popula￾tions for the treatment of sulphur-containing wastewater. Biodegra￾dation,1992,3( 2 /3) : 239 [7] Gasiorek J. Microbial removal of sulfur dioxide from a gas stream. Fuel Process Technol,1994,40( 2 /3) : 129 [8] Cardona I C,Mrquez M A. Biodesulfurization of two Colombian coals with native microorganisms. Fuel Process Technol,2009,90 ( 9) : 1099 [9] Boon M,Heijnen J J. Chemical oxidation kinetics of pyrite in bi￾oleaching processes. Hydrometallurgy,1998,48( 1) : 27 [10] Fang K T. Uniform Design and Its Table. Beijing: Science Press,1994 ( 方开泰. 均匀设计与均匀设计表. 北京: 科学出版社,1994) [11] He B H,Wu C. Test method of spontaneous combustion tenden￾cy of sulfide ores in laboratory and its application. Saf Environ Eng,2006,13( 1) : 92 ( 贺兵红,吴超. 硫化矿石自燃倾向性的实验室测定方法与 应用. 安全与环境工程,2006,13( 1) : 92) [12] Zhao J,Zhang X K,Wang Y H. Study on spontaneous combus￾tion tendency of sulfide ores by TPO method. J Saf Sci Technol, 2009,5( 2) : 24 ( 赵军,张兴凯,王云海. 基于程序升温氧化法的硫化矿石自 燃倾向性研究. 中国安全生产科学技术,2009,5( 2) : 24) [13] Li Z J. Investigation on the Mechanism of Spontaneous Combustion of Sulphide Ores and the Key Technologies for Preventing Fire [Dissertation]. Changsha: Central South University,2007 ( 李孜军. 硫化矿石自燃机理及其预防关键技术研究[学位 论文]. 长沙: 中南大学,2007) ·399·
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