煤粉改性剂在邯钢配煤炼焦过程中的试验研究

煤粉改性剂在邯钢配煤炼焦过程中的试验研究--TheExperimentalResearchonUsingPowderCoal’sModifiedAgentattheProcessofcokingcoalblendinginHansteelGroup汇报人：黄世平Speechmaker:ShipingHuang单位：河北钢铁集团邯钢分公司焦化厂技术科Corporation:TechnologySectionofCokingPlant,HanSteel,HebeisteelCo.,LTD.2011年10月28日Oct.28,year2011第一作者简介

BriefIntroductionofFirstAuthor姓名：黄世平Name:ShipingHuang职称：工程师Thetitleofatechnicalorprofessionalpost:engineer单位：河北钢铁集团邯钢分公司焦化厂技术科Corporation:TechnologySectionofCokingPlant,HanSteel,HebeisteelCo.,LTD.学校及学位：大连理工大学化工学院硕士学位Universityanddegree:DalianUniversityofTechnology,MasterofEngineering所学专业：化学工艺煤化工专业Specialty:ChemicaltechnicsofCoalchemical作者简介实验方案确定Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoalkindsanalysis3四配合煤化验结果与分析Coordinatecoalsassayresultsandanalysis三3五实验焦炭结果分析Theassayresultsofexperimentalcoke3六经济效益概算3七论文总结3八主要汇报内容

GeneralCondensedSummary降本增效是企业生存和发展的最为重要的长期奋斗目标。2009年我国焦炭产量已经超过3亿吨，年消耗各种炼焦煤量约4亿吨。炼焦所用煤种主要是强粘结性的烟煤，目前强粘结性煤炭资源的需求日益紧张，炼焦用煤的价格也在年年攀升，焦化企业已经陷入了不断增加的成本困境和采购难的困境，降低炼焦成本、缓解煤炭资源紧张的矛盾已经成为焦化企业迫切需要解决的问题。

Energy⁃savingandcost⁃reducingisthemostimportantaimofsurvivalanddevelopmentforcorporations.Intheyearof1999,theoutputofcokeinChinawasmorethan300millionton,and400milliontonofcokingcoalswasconsumed.Weallknowthatcokingcoalsaremostofsoftcoalswhichhavestrongcakingproperty.Therequirementofstrongcakingpropertycoalsismoreandmoreintensityanditspriceishigherandhigher.Cokingplantsisalreadymoreandmoredifficulttostockcokingcoalsandtodecreasecost.Weshouldtryhardtosettletheseproblems.1.1、论文背景1.1.Thebackgroundofthepaper一、论文由来

1.OriginofthePaper为了降本增效和节约优质炼焦煤，邯钢焦化厂从煤资源合理配煤炼焦入手，一直致力于开展一系列的新型配煤炼焦方法的研究，达到降低焦炭成本。在这期间，进行了煤粉改性剂配煤炼焦的小焦炉试验研究，达到了减少优质炼焦煤配入量的目标。Forenergy⁃savingandcost⁃reducingandsavinghighqualitycokingcoal,Hansteelcokingplantbeginwithrationalcokingandblendingcoal,andtakeupwithresearchingaseriesofnewcokingcoalblendingmethods,toachievereducingcokingcost.Inthisperiod,Hansteelcokingplantputupwiththeexperimentalresearchaboutusingpowdercoal’smodifiedagenttoblendcokingcoalsinthesmallcoke-oven,andobtainedtheaimtoreducehighqualitycokingcoal.1.2、实验目的1.2.Theaim

ofthisexperiment

煤粉改性剂是一种新型炼焦催化产品，为白色乳液状液体，主要由钒、镧、铁等催化元素制成的络合物。该络合物性质比较稳定，常温常压下长时间不变质，使用前只需稍微摇晃即可，可以在焦化厂备煤车间装备简单设备很方便的添加到炼焦配合煤中应用。

Powdercoal’smodifiedagentisonekindofnewcokingcatalyzer,whichismilkinessliquidandaflocculewhichcontainscokingcatalyzerelementaryofvanadium,lanthanumandiron.Itsqualityissteadyanditwillnotbedegenerativeforalongtimeinnormal

environment.Wejustdoonethingtoswagpowdercoal’smodifiedagentforashorttimewhenweuseitblendingwithcokingcoals.Coalpreparationworkshopinacokingplantneedtobeequippedsimpleapparatustousepowdercoal’smodifiedagenttobeblendedwithcokingcoals.1.3、煤粉改性剂简介1.3.Introductionofpowdercoal’smodifiedagent在焦炉中，煤粉改性剂可以催化煤粉裂解，使煤的热分解特征发生变化，热解产物增加，热解温度区间增宽，胶质体生长时间延长，从而有利于改善配合煤的结焦性能，使焦炭的冷、热强度提高。在保证焦炭质量的前提下，添加极少量的煤粉改性剂，不但能达到降低优质炼焦煤，增加弱粘结性煤的配入量的目的，降低配煤炼焦成本的目标，而且将缓解河北钢铁集团甚至河北省优质炼焦煤使用危机，适应国家能源利用可持续发展的要求。Inthecoke-oven,powdercoal’smodifiedagentcancatalyzecokingcoalpyrolysis,andchangethecharacterofcokingcoalpyrolysis,andincreasepyrolysisproductions,andbroadenpyrolysistemperaturesection,andextendplasticdevelopingtime.Itisalsogoodforimprovingcokingpropertiesofcoordinatecoalandmakescoldandhotintensityincreased.Attheeffectoflittlequantityofpowdercoal’smodifiedagent,itcannotonlydecreasethequantityofgoodcokingcoalsandreducethecostofcokingcoalblending,butalsorelaxthepressureofstockgoodcokingcoalsforHebeisteelCo.,LTDandHebeiProvince.ItisfitforthesustainabledevelopmentofenergysourcesusingrequireinChina.1.4、论文意义1.4.Significanceofthepaper实验方案确定Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoalkindsanalysis3四配合煤化验结果与分析Coordinatecoalsassayresultsandanalysis三3五实验焦炭结果分析Theassayresultsofexperimentalcoke3六经济效益概算3七论文总结3八主要汇报内容

GeneralCondensedSummary二、实验装置介绍

2.Introductionofexperimentalequipment图40kg级小焦炉Map:The40kgSmallCoke-oven实验方案确定Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoalkindsanalysis3四配合煤化验结果与分析Coordinatecoalsassayresultsandanalysis三3五实验焦炭结果分析Theassayresultsofexperimentalcoke3六经济效益概算3七论文总结3八主要汇报内容

GeneralCondensedSummary三、实验煤种分析

3.Experimentalcoalkindsanalysis

试验煤种都是邯钢目前用于配煤炼焦的煤种，一共8种，它们是1/3焦煤、肥煤1号、肥煤2号、焦煤1号、焦煤2号、焦煤3号、焦煤4号、瘦煤。所有煤样从煤场取来，将试验煤种分别进行破碎、筛分、测量水分、装入硫铵袋中并封好口，防止水分流失和氧化变质，并进行各种煤的指标化验。AllofeightkindexperimentalcoalswerethecokingcoalsusedinHansteelcokingplant.Theywereonekindof1/3cokingcoal,fatcoalⅠ,fatcoalⅡ,cokingcoalⅠ,cokingcoalⅡ,cokingcoalⅢ,cokingcoalⅣ,andonekindofleancoal.Allkindofexperimentalcoalsfetchedfromcoalfield.Afterbreaked,filtrated,measuredmoisture,encasedinammonium

sulfate

bagsandairproofed,allexperimentalcoalsdidassay.3.1、煤种选择3.1.Experimentalcoalchoice3.2、实验煤种指标化验3.2.experimentalcoalsassay

表1煤种化验结果Tab.1Theassayresultofexperimentalcoals煤样coal工业分析Industrialanalyse胶质层指数plasticlayerindex粘结指数bondindex煤种分类Ag%Vr%SQ%WQ%Y/XGKZ1/3焦煤9.0936.430.596.4318.5/30.2（之山形）87SZ肥煤1号9.7326.741.357.4319.2/14.2（之山形）92ZX肥煤2号8.0032.581.4911.4319/36（之字）83LL焦煤1号9.1424.090.547.4316/24（波形）89JL焦煤2号11.3826.410.688.5714.2/22.1（之字）77BW焦煤3号9.8722.110.816.147.6/20.1（斜降）79YS焦煤4号9.2920.361.149.2914/25（波形）79HB瘦煤9.4816.330.4215.57——15

目前，进厂洗精煤的混洗和混配现象比较严重，而且有的煤种质量波动也比较大，需要有准确的全面的测量手段来监控和衡量。为了确保试验的正常有序进行，我们把所有煤种进行了指标化验，结果如上表1所示。表1表明，所有煤种的工业分析、胶质层指数和粘结指数测量结果都是这些煤的正常指标，没有超出这些煤的进厂标准。

Nowadays,weallknowthatcokingcoalshavethecharacteristicofheavymixingandblending,andthequalityofsomecoalscomparativelywave.Sothat,wedidassayallexperimentalcoals.Tab.1istheassayresultofexperimentalcoals.Itisshownthattheexperimentalcoalshadnoabnormalassays.实验方案确定Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoalkindsanalysis3四配合煤化验结果与分析Coordinatecoalsassayresultsandanalysis三3五实验焦炭结果分析Theassayresultsofexperimentalcoke3六经济效益概算3七论文总结3八主要汇报内容

GeneralCondensedSummary实验方案的确立原则是在焦炭质量不降低的情况下，努力增加低品质煤的配比，降低优质炼焦煤的配比，达到降低焦炭成本的目的。下表2列出了煤粉改性剂配煤炼焦的小焦炉试验的煤种配比情况，每个配比都进行了3组平行试验。Theprincipleofconfirmingexperimentalprojectwasthatwetriedhardincreasingmixingproportionoflowqualitycoals,anddecreasinggoodcokingcoals,andreducecokingcost.Tab.2liststheproportionofexperimentalcoals.Everyexperimentalproportionwascarriedthroughthreeparalleltests.四、实验方案确定

4.Experimentalprojectconfirmed表2小焦炉试验配比Tab.2Theexperimentalproportionmentsofthesmallcoke-oven

编号No.LLKZJLHBBWYSSZZX备注RemarkHHJ1-120121271951312空白试验（焦炉生产配比）Blanktest(Industrialproducionproportionment)HHJ1-2HHJ1-3HHJ2-120121271951312空白试验基础上配加0.05％的改性剂Adding0.05%modifiedagentonbaseofblanktestHHJ2-2HHJ2-3HHJ3-12017127195812减5％的肥煤1号（SZ），增5％的1/3焦煤(KZ），配加0.05％的改性剂Reduce5%SZcoal,increase5%KZcoal,thenadding0.05%modifiedagentHHJ3-2HHJ3-3HHJ4-115171271951312减5％的焦煤1号（LL），增5％的1/3焦煤(KZ），配加0.05％的改性剂Reduce5%LLcoal,increase5%KZcoal,thenadding0.05%modifiedagentHHJ4-2HHJ4-3HHJ5-120121271951312空白试验基础上配加0.07％的改性剂Adding0.07%modifiedagentonbaseofblanktestHHJ5-2HHJ5-3实验方案确定

Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoalkindsanalysis3四配合煤化验结果与分析Coordinatecoalsassayresultsandanalysis三3五实验焦炭结果分析Theassayresultsofexperimentalcoke3六经济效益概算3七论文总结3八主要汇报内容

GeneralCondensedSummary五、配合煤化验结果与分析

5.Coordinatecoalsassayresultsandanalysis表3试验煤种化验结果Tab.3Theassayresultsofexperimentalcoordinatecoals编号No.工业分析Industrialanalyse胶质层指数Plasticlayerindex粘结指数Bondindex基氏流动度GieselerfluidityAg%Vr%SQ%TaTb塑性区间Plasticsection最大流动度MaximumfluidityHHJ1-19.7725.220.8314.5/31.5（波形）803844931091783HHJ1-29.7325.660.8217/35(波形）823934981041047HHJ1-39.8526.300.7815.5/28（之字）813894961071415HHJ19.7825.730.8115.7/31.5813894961071415HHJ2-19.4625.390.8512/31（斜降）773834891066718HHJ2-29.3725.660.7814.5/29.5（之字）823795021235319HHJ2-39.8725.310.8614/28（波形）763815001193941HHJ29.5725.450.8313.5/29.5783814971165326HHJ3-19.5627.430.8313.5/32.3（波形）803824981164123HHJ3-29.5225.580.8015.5/23.2（之字）793865011154963HHJ3-39.7026.500.8913.7/25.8（波形）713815001193707HHJ39.5926.500.8414.2/27.1773835001174264HHJ4-19.5926.650.8117.8/32.3（之字）793754951204234HHJ4-29.6326.540.8818/29（之字）793804901103482HHJ4-39.4726.430.8412.6/27.9（之字）783794481163846HHJ49.5626.540.8416.1/29.7793784931153854HHJ5-19.5725.980.8215.5/25（之字）763824921101982HHJ5-29.2826.060.8615/22（之字）723804951152834HHJ5-39.6826.600.8415.5/26（之字）713844931092324HHJ59.5126.210.8415.3/24.3733824931112380表3列出了各组配合煤的化验结果。从表3可以看出：（1）各组小焦炉试验的煤种是通过不同比例的各种煤样配合得到的，在配煤过程中，需要把所有的配合煤的水分都调到10.00%。（2）所有配合煤的灰分都在9.00%-10.00%之间，配合煤灰分的差异主要是因为不同种类的煤样的配比不同，而煤粉改性剂配入量不足0.1%，它基本上不影响到配合煤的灰分。

（3）各组试验配合煤的全硫含量在0.8%-0.9%之间。

Tab.3liststheassayresultsofallexperimentalcoordinatecoals.WeknowfromTab.3that,(1)Inthecourseofcokingcoalsblending,weshouldmakeallexperimentalcoordinatecoals’moisture10.00percent.(2)Ashcontentsofallexperimentalcoordinatecoalswerebetween9.00%to10.00%.Thedifferencesofcoordinatecoals’ashcontentswasmainlybecauseofdifferentkindandproportionofcoals.

(3)Sulfurcontentsofallexperimentalcoordinatecoalswerebetween0.8%to0.9%.（4）所有配合煤的粘结指数都在80左右，胶质层最大厚度都在13.5mm-18mm之间，胶质体随温度变化的图形大多都是“之字”或“波形”，说明所有的配合煤都有焦煤的性质，适合配煤炼焦的使用，试验的选煤和混合是比较合理。（5）各组试验的配合煤的挥发分含量都在25%-27%之间。表3表明，在所有试验配比中，由于KZ煤为1/3焦煤，挥发分含量在36%daf.以上，所以增加5%的KZ煤的试验配合煤的挥发分都比其他配合煤的挥发分含量要高。(4)Bondindexofallexperimentalcoordinatecoalswerearound80,andmaximumthicknessofplasticlayerswerebetween13.5mmto18mm,andthefiguresofplasticwiththechangeoftemperatureweremostofZformorwaveform.Soweknewthatallexperimentalcoordinatecoalswiththecharacterofcokingcoalwerefitforblendingandcoking.Inotherwords,itwasrelativescientificthatwechoseandblendcokingcoals.(5)Volatilecontentsofallexperimentalcoordinatecoalswerebetween25%to27%.Tab.3wasshownthatKZcoalwas1/3cokingcoalwithmorethan36%daf.Volatilecontents,sothevolatilecontentsofexperimentalcoordinatecoalswerehigherbecauseweincreasedthemixingproportionofKZcoal（6）所有配合煤的塑性温度区间都在100oC以上，且所有配合煤的最大流动度都在1000dd/min-6000dd/min之间，都具有焦煤的热性质。从表3还可以看出，配入煤粉改性剂的配合煤塑性温度区间比空白试验的配合煤的塑性温度区间平均要宽一些，最大流动度也要大一些，说明煤粉改性剂在煤炼焦过程中对胶质体的性能是有所改善，更适合配煤炼焦。(6)Plastictemperatureintervalofallexperimentalcoordinatecoalsweremorethan100oC,andmaximumfluiditywerebetween1000dd/minto6000dd/minwhichwerethermalpropertiesofcokingcoal.ItwasshownonTab.3thatplastictemperatureintervalandmaximumfluidityofexperimentalcoordinatecoalsincreasingpowdercoal’smodifiedagentweremorethanblanktestofcoordinatecoals.Sopowdercoal’smodifiedagentcanimprovethecapabilityofplasticandmakecoordinatecoalsmoresuitableforcoking.实验方案确定

Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoalkindsanalysis3四配合煤化验结果与分析

Coordinatecoalsassayresultsandanalysis三3五实验焦炭结果分析Theassayresultsofexperimentalcoke3六经济效益概算3七论文总结3八主要汇报内容

GeneralCondensedSummary六、实验焦炭结果分析

6.Theassayresultsofexperimentalcoke表4小焦炉试验焦炭对比Tab.4theassayresultsofexperimentalcokes样别No.工业分析Industrialanalyse焦炭冷态强度Coldintensity焦炭热态强度HotintensityAg%SQ%M40%M25%M10%CRI%CSR%HHJ1-112.760.7285.3391.007.6732.354.6HHJ1-212.190.7086.3391.007.6732.355.4HHJ1-312.620.6385.0091.007.6731.555.5HHJ112.520.6885.5591.007.6732.055.2HHJ2-112.080.7487.0092.007.0030.850.5HHJ2-212.410.7187.0091.677.3329.858.7HHJ2-312.270.7487.0091.677.0030.056.8HHJ212.250.7387.0091.787.1130.255.3HHJ3-112.980.7280.7790.387.6930.855.6HHJ3-212.200.7582.3390.338.0032.352.4HHJ3-312.710.7283.3391.337.0030.555.4HHJ312.630.7382.1490.687.5631.254.5HHJ4-112.320.7484.6791.337.6731.355.6HHJ4-212.320.7384.3391.007.6732.056.6HHJ4-312.230.7684.0089.678.6729.856.9HHJ412.290.7484.3390.678.0031.056.4HHJ5-113.000.7784.6790.338.0031.855.7HHJ5-211.970.6087.6791.677.3330.055.6HHJ5-312.630.6985.6791.337.0030.359.1HHJ512.530.6986.0091.117.4430.756.8（1）小焦炉试验焦炭的灰分都在12.0%-13.0%之间；（2）焦炭的全硫含量都在0.7%左右。(1)Ashcontentsofallexperimentalcokeswerebetween12.0%to13.0%.(2)Sulfurcontentsofallexperimentalcokeswerearound0.7%.图1各组试验焦炭的冷态强度平均值的对比Map1Comparisonfortheaverageofcoldintensitiesineachgrouptest图2各组试验焦炭的热态强度平均值的对比Map2Comparisonfortheaverageofhotintensitiesineachgrouptest从图中可以看出，煤种配比不变的前提下，增配煤粉改性剂试验（如第二组试验和第五组实验）的焦炭的冷态和热态性能比空白试验的都有明显提高，且随着煤粉改性剂配入量的增加，焦炭的质量也随之呈线性增加的趋势。相比空白试验来说，第三组和第四组试验焦炭的冷强度变差一些，虽然第三组试验焦炭的反应后强度CSR降低，但其反应性CRI都有所改善，且第四组实验焦炭的反应后强度和反应性都比空白试验的要高。目前肥煤和焦煤的价格一直居高不下，在保证焦炭质量不降低的情况下，用1/3焦煤代替肥煤或焦煤炼焦，焦炭成本将降低很多。

InMap1andMap2,weknewthatcoldandhotintensitiesfortheexperimentsaddingpowdercoal’smodifiedagentweremorethanthoseofblanktests.Astheincreaseofthecoal’smodifiedagentamount,thecokequalityalsoshowedalinear-increasetrend.Comparedwiththeblanktest,thethirdgroupandthefourthgrouptestcokecoldintensityvariation,althoughthethirdgroupstestcokestrengthafterreactioninCSRdecreased,butthereactionofCRIareimproved,andthefourthgroupsofexperimentalcokestrengthafterreactionandreactionofblanktestishigherthan.Thefatcoalandcokingcoalpriceshavebeenhigh,inensuringthecokequalityislower,with1/3cokeinsteadofcoalorcokecoke,cokecostwillbereducedalot.实验结果实验方案确定

Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoalkindsanalysis3四配合煤化验结果与分析

Coordinatecoalsassayresultsandanalysis三3五实验焦炭结果分析

Theassayresultsofexperimentalcoke3六经济效益概算3七论文总结3八主要汇报内容

GeneralCondensedSummary综合考虑焦炭的热强度、冷强度、煤炭价格和试验结果等因素，邯钢焦化厂用5%的1/3焦煤代替5%的焦煤1号，再添加0.05%的煤粉改性剂来进行大焦炉生产，吨煤将降低成本达到15元，除去煤粉改性剂成本和工艺改进的费用，煤粉改性剂配煤炼焦的吨焦成本降低将达到10元以上，邯钢每年的配合煤用量达到560万吨，每年为邯钢创效达到5600万元。同时焦炭的冷强度满足炼铁大高炉需要，焦炭的热强度比空白试验的要更好。Comprehensiveconsideringthefactorsofhotandcoldintensity,coalpriceandtheexperimentalresultsandsoon,Hansteelcokingplantrealizedindustrializationwhichused5%ofcokingcoalⅠinsteadof5%of1/3cokingcoal,thenadding0.05%modifiedagent.Afterthat,itreducescost15yuanpertoncoal.Removalofthecostofpowdercoal’smodifiedagentandprocessimprovement,thecokingcostreduces10yuanpertoncoal,andHansteelneeduse5.6milliontons,yearachieveeffecttoachieve56000000yuanofHansteel.七、经济效益概算

7.Economicreckoning经费概算

实验方案确定

Experimentalprojectconfirmed论文由来

OriginofthePaper一实验装置介绍

Introductionofexperimentalequipment二实验煤种分析

Experimentalcoal