粒度级配对煤成浆质量分数的影响.pdf

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1、化工设计通讯煤化工与甲醇第42卷第3期ChemicalEngineeringDesignCommunicationsCoalCemicalMethanol2016年3月粒度级配对煤成浆质量分数的影响浩灵慧，朱思慧，柳卧虎，周岩（内蒙古伊泰煤制油有限责任公司，内蒙古鄂尔多斯010300）摘要：水煤浆受煤的粒度、添加剂、不同煤种的内水分、煤种孔隙结构、含氧官能团和可磨性指数影响，成浆性能差别[1]较大。近几年由于油价和能源紧张，企业利润率较低，提高水煤浆浓度再次受到关注，水煤浆的粒度分布要求达到较高的堆积效率，即要求颗粒堆积时空隙小，而固体容积的浓度高，制备时使用单一粒径

2、的煤颗粒很难达到高的最佳堆积效率。关键词：粒度级配对；煤成浆；质量分数影响中图分类号：TQ536文献标志码：B文章编号：1003–6490（2016）03–0005–02GradingSizeonCoalSlurryMassFractionHaoLing-hui，ZhuSi-hui，LiuWo-hu，ZhouYanAbstract：Thecoalwaterslurryofcoalgranularity，additives，differenttypesofthemoisturecontent，porestructureofcoal，[1]oxygencontaining

3、functionalgroupandgrindabilityindex，waterslurryperformancedifferenceisbigger.Inrecentyearsduetooilpricesandenergyconstraints，havelowerprofitmargins，improvecoalwaterslurryconcentrationofattentiononceagain，theaccumulationofparticlesizedistributionofcoalwaterslurryrequirementstoachievehigh

4、efficiency，whichaskswhenparticlesaccumulatespaceissmall，andthesolidvolumeconcentrationishigh，thepreparationisusedwhenasingleparticlesizeofcoalparticlesisverydifficulttoachievehighaccumulationefficiency.Keywords：grainsizematching；Coal-derivedpulp；Qualityscore1实验部分表2粒度级配与煤浆浓度的关系1.1煤样粒度煤种制

5、浆使用煤样为转龙湾洗煤、转龙湾籽煤、宝山煤，三浓度/粘度8目14目40目200目325目%CP种煤的性质分析结果见表1。2.4mm1.4mm0.45mm0.075mm0.044mm表1煤样性质分析61.7474610099.8178.3933.2021.87指标宝山煤转龙湾洗煤转龙湾籽煤59.6676210010092.6434.2526.02Mad（%）2.753.302.2060.3792099.6799.3590.0534.6023.01Ad（%）5.627.105.4358.0376099.6999.1787.9134.7920.84Vdaf（%）32.663

6、1.6032.0461.5777499.8799.4785.7035.6422.75FCd58.9758.0060.33宝山煤61.0188410099.5792.3836.0027.17全水分（%）17.7418.4014.6460.4680010099.4792.3340.2330.08-1发热量/（J·kg）24015.122943.525404.959.3188410010098.9940.9831.22St.d（%）0.160.470.3961.00119099.4598.7692.5641.0429.17HGI61687460.38126810010096

7、.7141.0832.660.27100210099.7395.8341.3230.901.2方法和步骤59.5834999.7599.6997.9544.8826.87料浆制备：将原料煤用颚式破碎机粉碎成一定粒度，根58.6467199.7599.6198.9957.4633.45据煤的可磨指数和入磨粒度，控制研磨时间，分次研磨成粗60.18119410010097.0331.7811.14细粒度不同的所需粒度的煤粉。然后称取一定量的各种粒度不同的煤粉配制成所需粒度的煤粉，加入自来水和添加剂配62.9689498.8496.5179.8132.11