煤泥浮选复合药剂开发及分选提质
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摘要
以选煤厂细粒煤泥为研究对象,分析了该煤泥的煤质特征。通过柴油与多种促进剂混合制备得到复合药剂,并进行了常规药剂、现有复合药剂与新开发复合药剂的浮选试验对比,结果表明,当新开发复合药剂换算柴油用量为360 g/t时,精煤产率为39. 42%,精煤灰分17. 35%,该指标与常规药剂和MJ型药剂分选时约500 g/t用量时结果相近,较常规药剂和MJ型复合药剂分选可有效节约药剂耗量,并得到好的分选指标。当该复合药剂换算柴油用量720 g/t时,得到较优分选指标,精煤产率为47. 13%,精煤灰分为16. 24%.最后对新型复合药剂的分选机理进行了探究。
The paper discussed the fine coal quality characteristics from coal preparation plant. The compound reagent was prepared with diesel oil and various accelerating agent mixture. The comparison of flotation test on conventional reagent,present compound reagent and new development compound regent was carried out. Results shows the new development compound reagent could improve the flotation process and effectively save the reagent dosage. We could get the clean coal with the ash 17. 35% and the yield 39. 42% when the new compound reagent dosage at 360 g/t diesel oil. The near flotation index was got with the reagent dosage at 500 g/t diesel oil when using conventional reagent and present compound regent. The better separation result was gained that the clean coal with the ash 16. 24% and the yield 47. 13% when the new compound reagent dosage at 720 g/t diesel oil. The separation mechanism of the new development compound reagent was studied.
The paper discussed the fine coal quality characteristics from coal preparation plant. The compound reagent was prepared with diesel oil and various accelerating agent mixture. The comparison of flotation test on conventional reagent,present compound reagent and new development compound regent was carried out. Results shows the new development compound reagent could improve the flotation process and effectively save the reagent dosage. We could get the clean coal with the ash 17. 35% and the yield 39. 42% when the new compound reagent dosage at 360 g/t diesel oil. The near flotation index was got with the reagent dosage at 500 g/t diesel oil when using conventional reagent and present compound regent. The better separation result was gained that the clean coal with the ash 16. 24% and the yield 47. 13% when the new compound reagent dosage at 720 g/t diesel oil. The separation mechanism of the new development compound reagent was studied.
引文
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[12]路永广,张晓丽,杨胜杰,等. HLF-02长焰煤高效浮选剂的研究与应用[J].煤炭技术,2016,35(10):323-324.LU Yong-guang,ZHANG Xiao-li,YANG Sheng-jie,et al. Research and application of HLF-02 efficient flotation reagents used in long-flame coal[J]. Coal Technology,2016,35(10):323-324.
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[17]陈海峰,丁光耀,程翔锐,等.浮选药剂选择性和消泡性选优试验[J].煤炭加工与综合利用,2016,(7):11-17.CHEN Hai-feng,DING Guang-yao,CHENG Xiang-rui,et al. Laboratory optimization test of selective and defrothing performance of flotation reagent[J]. Coal Processing and Comprehensive Utilization,2016(7):11-17.
[18]朱张磊,郭丽娜,李志红,等. OP4对难浮煤泥浮选影响的试验研究[J].煤炭技术,2016,35(8):282-284.ZHU Zhang-lei,GUO Li-na,LI Zhi-hong,et al. Research on influence of surfactant OP4 to flotation of difficult floated coal slime[J]. Coal Technology,2016,35(8):282-284.
[19]沈笑君,梁传程,谢广元,等.杂醇油制备煤泥浮选复合药剂的试验研究[J].矿产综合利用,2017,37(2):58-62.SHEN Xiao-jun,LIANG Chuan-cheng,XIE Guangyuan,et al. Research on preparation of coal slime compound reagent made from fusel oil[J]. Multipurpose Utilization of Mineral Resourses,2017,37(2):58-62.
[20]郑长龙,茹毅.超声预处理对低阶煤浮选的影响[J].煤炭工程,2017,49(5):125-127.ZHENG Chang-long,RU Yi. Effect of ultrasonic pretreatment on low rank coal flotation[J]. Coal Engineering,2017,49(5):125-127.
[21]郑云婷,程宏志,石焕.长焰煤表面性质及其对可浮性的影响[J].选煤技术,2016(4):11-15.ZHENG Yun-ting,CHENG Hong-zhi,SHI Huan. The surface property of long flame coal and its effecton flotability of such coal[J]. Coal Preparation Technology,2016(4):11-15.
[22]任睿,冯伟.煤用捕收剂的研究现状及展望[J].煤炭技术,2014,33(9):277-279.REN Rui,FENG Wei. Actuality and expectation on fine coal collector[J]. Coal Technology,2014,33(9):277-279.
[23]解维维,陈慧昀,曹国强,等.乳化煤油脱硫降灰效果实验研究[J].煤炭技术,2014,33(12):312-314.XIE Wei-wei,CHEN Hui-yun,CAO Guo-qiang,et al.Study on desulphuration and deashing effects of emulsified kerosene[J]. Coal Technology,2014,33(12):312-314.
[24]解维维,贺效威,曹国强,等.乌海肥煤乳化浮选降灰试验研究[J].煤炭工程,2014,46(10):202-204.XIE Wei-wei,HE Xiao-wei,CAO Guo-qiang,et al. Study on deashing effect of emulsified diesel oil to Wuhai fat coal[J]. Coal Engineering,2014,46(10):202-204.
[25]高国元,王彩丽,张志强,等.不同表面活性剂对氧化煤泥浮选促进作用的研究[J].煤炭技术,2017,36(9):303-305.GAO Guo-yuan,WANG Cai-li,ZHANG Zhi-qiang,et al.Study on promoting effect of different surfactants on flotation of oxidized coal slurry[J]. Coal Technology,2017,36(9):303-305.
[26]王红新,夏文成,杨建国,等.充气量和循环量对浮选柱气含率的影响研究[J].煤炭工程,2012,44(2):85-87.WANG Hong-xin,XIA Wen-cheng,YANG Jian-guo,et al. Study on aeration quantity and circulation quantity affected to gas content rate of flotation column[J]. Coal Engineering,2012,44(2):85-87.
[27]张力先,高玉武.矿物表面特性与可浮性关系综述[J].黄金学报,2000,2(1):30-33.ZHANG Li-xian,GAO Yu-wu. Summarization of relation between surface properties and floatability of minerals[J]. Gold Journal,2000,2(1):30-33.
[28]刘莉君,于伟.复合ZM药剂对难选煤浮选强化的机理[J].中国矿业,2015,24(10):155-159.LIU Li-jun,YU Wei. Flotation strenthening mechanism of composite ZM regents for difficult-to-separate coal[J]. China Mining Magazine,2015,24(10):155-159.
[2] Jena M S,Biswal S K,Das S P,et al. Comparative study of the performance of conventional and column flotation when treating coking coal fines[J]. Fuel Processing Technology,2008,89(12):1409-1415.
[3] CAI Yu-chu,DU Mei-li,WANG Shui-li,et al. Flotation characteristics of oxidized coal slimes within low-rank metamorphic[J]. Powder Technology,2018,340(9):34-38.
[4]张义顺,张岭,刘远杨,等.阻尼脉动干扰床分选机分选试验研究[J].选煤技术,2013(3):17-20.ZHANG Yi-shun,ZHANG Ling,LIU Yuan-yang,et al.Experimental study of separation test on hindered pulsating teetered bed separator[J]. Coal Preparation Technology,2013(3):17-20.
[5] Murat Erol,Cigdem Colduroglu,Zeki Aktas. The effect of reagents and reagent mixtures on froth flotation of coal fines[J]. Miner Process,2003,71:131-145.
[6]蒋莉,陶秀祥,张许峰,等.新型复合药剂在新郑精煤公司选煤厂的应用[J].中国煤炭,2014,40(10):94-98.JIANG Li,TAO Xiu-xiang,ZHANG Xu-feng,et al. The application of new composite reagent in coal preparation plant of Xinzheng coal company[J]. China Coal,2014,40(10):94-98.
[7]于海选,杨世诚,张玉德,等.复合药剂煤泥浮选试验研究[J].洁净煤技术,2015,21(5):8-13.YU Hai-xuan,YANG Shi-cheng,ZHANG Yu-de,et al.Application of compound reagent in slime flotation[J].Clean Coal Technology,2015,21(5):8-13.
[8]朱宾,杨建国,张继龙.复合药剂在风化煤泥浮选中的性能研究[J].选煤技术,2011(6):4-6.ZHU Bin,YANG Jian-guo,ZHANG Ji-long. The performance study about weathered coal slime flotation using compound reagent[J]. Coal Preparation Technology,2011(6):4-6.
[9] Abismail B,Canselier J P,Wilhelm A M,et al. Emulsification processes:on-line study by multiple light scattering measurement[J]. Ultrasonics Sonochemistry,2000(7):187-192.
[10]崔广文,于文慧,张玉,等.煤泥浮选药剂研究现状及发展趋势[J].洁净煤技术,2015,21(1):15-21.CUI Guang-wen,YU Wen-hui,ZHANG Yu,et al. Status and development trend of coal slime flotation reagents[J]. Clean Coal Technology,2015,21(1):15-21.
[11] HE Jing-feng,LIU Cheng-guo,YAO Ya-ke. Flotation intensification of the coal slime using a new compound collector and the interaction mechanism between the reagent and coal surface[J]. Power Technology,2018,325(2):333-339.
[12]路永广,张晓丽,杨胜杰,等. HLF-02长焰煤高效浮选剂的研究与应用[J].煤炭技术,2016,35(10):323-324.LU Yong-guang,ZHANG Xiao-li,YANG Sheng-jie,et al. Research and application of HLF-02 efficient flotation reagents used in long-flame coal[J]. Coal Technology,2016,35(10):323-324.
[13] XIA Wen-cheng,LI Yi-jiang,Anh V. Nguyen. Improving coal flotation using the mixture of candle soot and hydrocarbon oil as a novel flotation collector[J]. Journal of Cleaner Proudction,2018,195(9):1183-1189.
[14]古玉.新型浮选药剂对显德汪矿贫煤的浮选试验影响研究[J].煤炭与化工,2016,39(3):98-101.GU Yu. Study on influence of new type of flotation reagents to lean coal flotation in Xiandewang Mine[J].Coal and Chemical Industry,2016,39(3):98-101.
[15]王海楠,朱金波,朱宏政,等.淮南矿区微细煤泥浮选规律研究[J].煤炭技术,2018,37(1):318-320.WANG Hai-nan,ZHU Jin-bo,ZHU Hong-zheng,et al.Research on flotation regularities of fine coal slime in Huainan mining area[J]. Coal Preparation Technology,2018,37(1):318-320.
[16]沈笑君,梁传程,郝立伟.铁东选煤厂浮选药剂选择试验[J].选煤技术,2015(1):20-23.SHEN Xiao-jun,LIANG Chuan-cheng,HAO Li-wei. Experiment study on flotation reagent selection in Tiedong coal preparation plant[J]. Coal Preparation Technology,2015(1):20-23.
[17]陈海峰,丁光耀,程翔锐,等.浮选药剂选择性和消泡性选优试验[J].煤炭加工与综合利用,2016,(7):11-17.CHEN Hai-feng,DING Guang-yao,CHENG Xiang-rui,et al. Laboratory optimization test of selective and defrothing performance of flotation reagent[J]. Coal Processing and Comprehensive Utilization,2016(7):11-17.
[18]朱张磊,郭丽娜,李志红,等. OP4对难浮煤泥浮选影响的试验研究[J].煤炭技术,2016,35(8):282-284.ZHU Zhang-lei,GUO Li-na,LI Zhi-hong,et al. Research on influence of surfactant OP4 to flotation of difficult floated coal slime[J]. Coal Technology,2016,35(8):282-284.
[19]沈笑君,梁传程,谢广元,等.杂醇油制备煤泥浮选复合药剂的试验研究[J].矿产综合利用,2017,37(2):58-62.SHEN Xiao-jun,LIANG Chuan-cheng,XIE Guangyuan,et al. Research on preparation of coal slime compound reagent made from fusel oil[J]. Multipurpose Utilization of Mineral Resourses,2017,37(2):58-62.
[20]郑长龙,茹毅.超声预处理对低阶煤浮选的影响[J].煤炭工程,2017,49(5):125-127.ZHENG Chang-long,RU Yi. Effect of ultrasonic pretreatment on low rank coal flotation[J]. Coal Engineering,2017,49(5):125-127.
[21]郑云婷,程宏志,石焕.长焰煤表面性质及其对可浮性的影响[J].选煤技术,2016(4):11-15.ZHENG Yun-ting,CHENG Hong-zhi,SHI Huan. The surface property of long flame coal and its effecton flotability of such coal[J]. Coal Preparation Technology,2016(4):11-15.
[22]任睿,冯伟.煤用捕收剂的研究现状及展望[J].煤炭技术,2014,33(9):277-279.REN Rui,FENG Wei. Actuality and expectation on fine coal collector[J]. Coal Technology,2014,33(9):277-279.
[23]解维维,陈慧昀,曹国强,等.乳化煤油脱硫降灰效果实验研究[J].煤炭技术,2014,33(12):312-314.XIE Wei-wei,CHEN Hui-yun,CAO Guo-qiang,et al.Study on desulphuration and deashing effects of emulsified kerosene[J]. Coal Technology,2014,33(12):312-314.
[24]解维维,贺效威,曹国强,等.乌海肥煤乳化浮选降灰试验研究[J].煤炭工程,2014,46(10):202-204.XIE Wei-wei,HE Xiao-wei,CAO Guo-qiang,et al. Study on deashing effect of emulsified diesel oil to Wuhai fat coal[J]. Coal Engineering,2014,46(10):202-204.
[25]高国元,王彩丽,张志强,等.不同表面活性剂对氧化煤泥浮选促进作用的研究[J].煤炭技术,2017,36(9):303-305.GAO Guo-yuan,WANG Cai-li,ZHANG Zhi-qiang,et al.Study on promoting effect of different surfactants on flotation of oxidized coal slurry[J]. Coal Technology,2017,36(9):303-305.
[26]王红新,夏文成,杨建国,等.充气量和循环量对浮选柱气含率的影响研究[J].煤炭工程,2012,44(2):85-87.WANG Hong-xin,XIA Wen-cheng,YANG Jian-guo,et al. Study on aeration quantity and circulation quantity affected to gas content rate of flotation column[J]. Coal Engineering,2012,44(2):85-87.
[27]张力先,高玉武.矿物表面特性与可浮性关系综述[J].黄金学报,2000,2(1):30-33.ZHANG Li-xian,GAO Yu-wu. Summarization of relation between surface properties and floatability of minerals[J]. Gold Journal,2000,2(1):30-33.
[28]刘莉君,于伟.复合ZM药剂对难选煤浮选强化的机理[J].中国矿业,2015,24(10):155-159.LIU Li-jun,YU Wei. Flotation strenthening mechanism of composite ZM regents for difficult-to-separate coal[J]. China Mining Magazine,2015,24(10):155-159.