80万吨无回收焦化方案.docx
- 文档编号:3540154
- 上传时间:2022-11-23
- 格式:DOCX
- 页数:14
- 大小:31.64KB
80万吨无回收焦化方案.docx
《80万吨无回收焦化方案.docx》由会员分享,可在线阅读,更多相关《80万吨无回收焦化方案.docx(14页珍藏版)》请在冰豆网上搜索。
80万吨无回收焦化方案
Proposalof800,000tpa
Clean-TypeHeat-RecoveryCokingProject
1.Background
OurM/sShanxiProvincialChemicalDesignInstitute,afirstgradeinstituteofcokingplantdesigninChina,possessesagreatnumberofpatentandpropertechnologies.Especially,sheclaimsahighestlevelandrichestexperienceinChinainclean-typeheat-recoverycokeovens’development&research,design&engineering,construction&management,andinitialheatingup&trial-production.ItisinthehighestlevelbothinChinaandoverseas.
Since1980sM/sShanxiProvincialChemicalDesignInstitutehasstudiedcleantypeheat-recoverycokeovens,andthenindustrialproductionwasbeganinlate1990s.In2001commercializedcleantypeheat-recoverycokeoventechnologieswasputintolarge-scalemechanizedandautomatedproduction.Atthesametime,theInstitutecompileddocumentationssuchasNormsandSpecificationforBricklayingandConstructionofClean-TypeHeat-RecoveryCokeOven,NormsandSpecificationsforInstallationofCleanTypeCokeOven,SpecificationsforHeatingUptheCleanTypeCokeOven,andSystemsforManagementetc.InNovember8,2001,theinventorappliedtoconcernedauthoritiesforpracticalnew-typepatentandinventivepatent.InSeptember4,2002theletterspatentwasauthorizedwithPatentNo.ZL01270184.X.InFebruary8,2002onthefirstpatenteemeeting,M/sShanxiProvincialChemicalDesignInstitutewasaccreditedasthesoleinstitutioninChinatouse,promoteanddevelopthepatent.InJune11,2003onthesecondpatenteemeeting,M/sShanxiProvincialChemicalDesignInstitutewasempoweredtoimprove,standardize,andcommercializetheimplementationofthepatent.M/sBeijingSino-SteelIndustry&TradeGroupCorpisthesolepromoterforClean-typeHeat-recoveryCokeOvenoutsideChina.
In1999,apilotplantcontaining18ovenswasputintoproduction.Uptonowtherearefivecleantypeheat-recoverycokeovenplantsthatareoperatingnormally,andfifteenplantsthatareunderconstruction.Thereferencelistisasfollows:
ReferenceListofOurAchievements
InOperation
No.
Plant
Capacity
Put-into-
productionTime
1
PilotPlantinShanxiHouma
18ovens
1999
2
TaiYuanGangyuanCokingCo.
400,000tpa
July,2003
3
ShanxiFenyangWenfengCokingCo.
500,000tpa
June,2003
4
ShanxiGaopingXingaoCokingCo.
400,000tpa
August,2003
5
ShanxiLvliangFuliCokingCo.
400,000tpa
March,2003
6
ShanxiZhongyangYaolongCoal&CokingCo.
200,000tpa
November,2003
UnderConstruction
Plant
Capacity
EstimatedCommissioningTime
1
TaiyuanLoufanWanguangCoal&CokeCo.
300,000tpa
May,2004
2
TaiyuanLoufanLiminCoal&CokeCo.
200,000tpa
November,2004
3
ShanxiLishiLiangyuCokingCo.
200,000tpa
February,2004
4
ShanxiLishiShuangfuCoal&CokeCo.
400,000tpa
May,2004
5
ShanxiLinxianXinminCokingCo.
400,000tpa
August,2004
6
ShanxiFenyangLongquanFoundryCokeCo.
400,000tpa
April,2004
7
ShanxiLanxianFengdaCoking&MetallurgyCo.
400,000tpa
November,2004
8
ShanxiQinxinCoal&PowerCo.
600,000tpa
October,2004
9
ShanxiQinshuiQinmaoCoal&CokeCo.
600,000tpa
November,2004
10
ShanxiLuxinCoalGasCo.
600,000tpa
November,2004
11
ShanxiCokingCoalGroupCorp.
800,000tpa
October,2004
12
HunanLoudiXingxingCokingCo.
300,000tpa
June,2004
13
ShandongTsingdaoIron&SteelCo.
600,000tpa
March,2004
14
JiangsuZhuxiIron&SteelCo.
600,000tpa
October,2004
15
ShandongShunxinCokeCo.
400,000tpa
August,2004
2.
Profileof800,000tpaCleanTypeHeat-RecoveryCokingPlant
Theproposalincludescoalreceivingfromtransferhouse,coalhandling,coalstocking,coalpreparing,coking,screening,cokecrushing,stocking,transferringtostockhouseandsuitableutilities.Fourgradesofcoalareusedtopreparethecoalblend.Inthecoalyard,forkliftisusedtotransportcoalintocoalreceivingpit,whichissuccessivelyblendedinblendingbunker,andpulverizedbycounterhammeringpulverizer.
Thecoaliscokedinclean-typeheat-recoverymechanizedcokeovenstypedQRD-2000withstamp-chargingprocess.Withsilicabricksastherefractoryoftheirmainbodies,thecokeovensadopthighaluminabricksaspartoftherefractoryofovenhead,andfireclaybricksandordinaryredbricksaspartoftherefractoryofovenbottomandovenroof.Theplantconsistsof128ovensof8batteries,eachcontaining16ovens,andself-adjustingsuctiondevices.Thecokeisscreenedto3gradesasperthecustomer’srequirements.Spaceisprearrangedfora2x12MWpowerplantutilizingthewasteheatfromthecokeovens.Thewholedesignwasfeaturedbyadvancementintechnology,security&reliability,economy&applicability,andcleannessinproduction.
3.QRDClean-typeHeatRecoveryMechanizedCokeOvenwithStamp-chargedProcess
QRDclean-typeheatrecoverymechanizedcokeovenswithstamp-chargedprocess,with8batteriesof128ovens,arearrangedintwolines.Eachlineconsistsof4batterieswitharatedcapacityof300,000tpa.Thewholeplantcanbeeitherputintoproductionwithaentirecapacityi.e.800,000tpaorstartwithhalfratedcapacityi.e.300,000tpa.
3.1BriefDescriptionofStructureofCokeOven
QRDclean-typeheatrecoverymechanizedcokeoveniscomposedofcarbonizationchamberroof,bottom,mainwall,sidegateandironcomponentstoprotectthecokeoven.
3.1.1OvenRoof
TheRoofisofarchtype.Topreventcokefrommelting,adjustableprimaryairinletsareevenlyinstalledinthearch,whichformawaste-gas-protectinglayerbetweenthecoalandburningzoneontheovenroof.
3.1.2OvenBottom
Fourlinkedarchesareusedontheovenbottom.Onthebaseofthearches,adjustablesecondaryairinletsareinstalledtomaketheairevenlydistributedintheflue.Theaircombustswithwastegasforasecondtimeandmakestheovenbottombeheatedevenly.
Thefirechannelsofthemainwallandtheovenbottomcancommunicatewitheachother.Anairlayerisprovidedbetweenthefoundationofthecokeovenandovenbottomtopreventthebaseplatefrombeingoverheated.
3.1.3MainWallofCarbonizationChamber
Evenlyprovidedwithavarietyoffirechannels,themainwallisequippedwithsuction-adjustingfacilities.Theoperationintheovenisundernegativepressure.
3.1.4OvenGate
Thegateisoftwosections.Theupperisfixedandthelowerismovable.Thetwo-sectiondesignisabletopreventsootleakageandreducetheoperativeweightoftheovengate.
Themainmaterialofovengateiscastiron.Thecircleofrefractoryliningishighaluminabrickandthemiddleiscastable.Thereisalsosomesiliciousaluminiumfabric.
3.1.5IronComponents
Thecokeovenisequippedwithironprotectivecomponentsincludingovencolumn,upperandlowerhorizontaltie-rod,verticaltie-rod,springandprotectiveplate.
3.1.6MachinesforCokeOven
Stamp-chargedmachine,coalcharging&cokepushingcar,quenchingcar.
(1)Stampingmachine
Thestampingmachineisoperatedhydraulically,coalcakeisstampedintwolayersanddurationofstampingtimeis20minutes.
(2)Chargingandpushingcar
CoalchargingprocessisoneofthekeytechnologiesoftheQRD-2000cleantypeheatrecoverymechanizedcokeovenwithstamp-chargedprocess.Thecokeovenischargedsidewise,eachcarbonizationchamberischargedwith45tdrycoalandthechargingprocesscanbefinishedin2minutes.Cantileverboxtypecoalchargingprocessisadopted.Aliftinganddoorsidewiseremovingmechanismcombinedwithcokepushingmechanismisprovidedonthecar,makingthesamecarhavetwofunctionsatthesametime.Thecarismainlycomposedofcoalbox,coalrod,coalboxdrivingmechanism,endbaffle,cokepushingbar,cokepushingbardrivingmechanism,ovendooropeningandclosedevice,supportingwheelandpressingwheel,carframeandthecaroperatingmechanism,etc.Thedrivercabinisprovidedwithairconditioningandthecontroldevicesforcoalchargingandcokepushing.
(3)Cokereceivingandquenchingcar
Thecokereceivingandquenchingcarislocatedatthecokeside,functioningforovendooropeningandclosingaswellascokereceivingandquenching.Itismainlycomposedofovendooropeningandclosingmechanism,horizontalcokereceivingtrough,travelingmechanism,carframeandoperatingroom,etc.Theovendoorsopenandclosehydraulically,thetravelingmechanismisprovidedwithtandemresistancespeedregulatedcontrolsystemandelectromagneticbreakerandnecessaryinterlockdevices.Thedrivercabinisprovidedwithairconditioning.Thecokereceivingtroughisofsteelstructure,withopeningatbothendsandbeinglinedwithheat-resistantcastplate,anditcantravelhorizontallyandtiltforward.
3.1.7Automation
Theheatingtemperatureandthesuctionpressureforeachholeoftheovenareself-adjusting.DCScontrolisadopted.
3.1.8MaterialofOvenBody
Accordingtodifferentconstructiveconditionsandproducts,suchasmetallurgicalcokeandfoundrycoke,variousrefractorybricksareadoptede.g.silicabricks,claybricks,aluminousbricks.
3.2TechnicalFeatures
3.2.1Volumeofthistypeofcokeovenislargeandworkingconditionisclean,whichrepresentthedirectionforthedevelopmentofinternationalcokingtechnology.
3.2.2Environmentalprotectivetechnologiesareadoptedinthecokeovenstructureandoperationprocess,suchascokeovennegative-pressureoperation,horizontalcokereceiving,etc.Nofumeordustemissionoccurduringthewholeprocessofcoalcharging,cokingandcokepushing.Nowastewaterwithharmfulingredientsisproducedduringtheoperationprocess,thuscleanproductionandpollutionfreeworkingenvironmentarerealized.
3.2
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 80 万吨无 回收 焦化 方案