課程導(dǎo)入

Courseguide原料制備

Preparationofrawmaterials第一道工序

Firstprocess

基礎(chǔ)工序

Basicprocess

原礦漿的制備

Preparationofraworepulp濕法冶金生產(chǎn)中

Inhydrometallurgicalproduction浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess林忠

Lin

Zhong

主講教師

Lecturer課程導(dǎo)入

Courseguide原料制備主要任務(wù)：Maintaskofrawmaterialpreparation:

破碎和均化礦石Crushingandhomogenizingore

磨制合格的原礦漿Grindingqualifiedraworepulp浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess課程導(dǎo)入

Courseguide破碎Crushing配礦Oreblending磨礦Oregrinding料漿制備SlurryPreparation破碎過(guò)程

Crushingprocess

原料制備步驟：Rawmaterialpreparationsteps:浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess課程導(dǎo)入

Courseguide浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess礦石的粒度對(duì)浸出率的影響較大

Theparticlesizeoforehasagreatinfluenceontheleachingrate浸出對(duì)粒度的要求

Particlesizerequirementsforleaching細(xì)化

Refine過(guò)細(xì)

Excessivefine利于浸出

Facilitatesleaching不利于礦漿液固分離

Notconducivetoslurryliquid-solidseparation礦石粒度

Oreparticlesize浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess適合浸出的礦石

Oresuitableforleaching粒度是多少？

Whatistheparticlesize?浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess粒度要求：一般礦石粒度為0.147mm者占90%以上

Particlesizerequirements:Generally,morethan90%oforeshaveparticlesizeof0.147mm破碎

Crushing研磨

Grinding浸出對(duì)粒度的要求

Particlesizerequirementsforleaching浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess破碎

Crushing破碎：使大塊固體物料變成小塊物料Crushing:turninglargesolidmaterialsintosmallpiecesofmaterial磨碎/研磨：使小塊物料進(jìn)一步粉碎Grinding/Trituration:Furthercrushingofsmallpiecesofmaterial浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess破碎階段

Crushingstage粗碎段

Coarsecrushingsection中碎段

Mediumcrushingsection細(xì)碎段

Finecrushingsection根據(jù)破碎產(chǎn)物的粒度大小

Accordingtotheparticlesizeofthecrushedproduct磨碎階段

Grindingstage粗磨段

Coarsegrindingsection細(xì)磨段

Finegrindingsection破碎

Crushing浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess粗碎段：顎式破碎機(jī)或回旋破碎機(jī)Coarsecrushingsection:jawcrusherorgyratorycrusher中碎段：標(biāo)準(zhǔn)型圓錐破碎機(jī)Mediumcrushingsection:standardconecrusher細(xì)碎段：短頭型圓錐破碎機(jī)Finecrushingsection:shortheadconecrusher粗磨段：格子型球磨機(jī)Coarsegrindingsection:latticetypeballmill細(xì)磨段：滋流型球磨機(jī)Finegrindingsection:Flowtypeballmill破碎

Crushing在不同的破磨階段需要使用不同的設(shè)備

Differentequipmentisrequiredatdifferentgrindingstages浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess為了達(dá)到礦石質(zhì)量指標(biāo)要求，對(duì)品位高低不同的礦石，按比例搭配，使之混合均勻，這種工作稱(chēng)為配礦。Inordertomeettherequirementsoforequalityindex,oreswithdifferentgradesaremixedinproportiontomakethemmixedevenly.Thiskindofworkiscalledoreblending.配礦礦石質(zhì)量中和

OreblendingOrequalityneutralization礦石破碎成粉料后就可以進(jìn)行配礦

Aftertheoreiscrushedintopowder,itcanbeblended配礦

Oreblending浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess采掘計(jì)劃階段爆破順序的安排Arrangementofblastingsequenceinminingplanningstage應(yīng)用工藝過(guò)程

Applicationprocess運(yùn)輸階段內(nèi)貯礦槽或料場(chǎng)移動(dòng)式皮帶卸礦、棧橋卸礦或裝卸車(chē)等工作的調(diào)度Schedulingofmobilebeltunloading,trestleunloadingorloadingandunloadingtruckinorestoragetankorstockyardduringtransportationstage起到配礦和混勻的作用

Playstheroleoforeblendingandmixing礦石破碎成粉料后就可以進(jìn)行配礦

Aftertheoreiscrushedintopowder,itcanbeblended配礦

Oreblending浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess使礦石中全部或大部分緊密結(jié)合以及共生在一起的各種有用礦物顆粒達(dá)到單體分離，以便進(jìn)行選別，并使其粒度符合選別作業(yè)的要求。

Allormostofthevarioususefulmineralparticlesintheorethatarecloselyboundandcoexisttogetherachievemonomerseparationfortheseparationoperation,andmaketheirparticlesizemeettherequirementsoftheseparationoperation.目的

Purpose破碎過(guò)程的繼續(xù)

Continuationofthecrushingprocess磨礦

Oregrinding浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess地位非常重要

Statusisveryimportant

磨礦產(chǎn)品的粒度

Particlesizeofmillproducts精礦品位

Concentrategrade金屬回收率

Metalrecovery浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess破碎過(guò)程的繼續(xù)

Continuationofthecrushingprocess磨礦

Oregrinding磨礦作業(yè)必須為選別作業(yè)提供最合適的產(chǎn)品粒度

Thegrindingoperationmustprovidethemostsuitableproductparticlesizefortheseparationoperation有用礦物顆粒等種代不能Usefulmineralparticlesandotherspeciescannotbereplaced全部或大部分達(dá)到單體分離Allormostofthemonomerseparationisachieved生成大量的細(xì)泥Generatealargeamountoffinesludge影響精礦脫水作業(yè)的正常進(jìn)行Affectthenormaloperationofconcentratedewatering磨礦產(chǎn)品粒度過(guò)大

Grindingproductsaretoolarge過(guò)分磨碎

Excessivegrinding破碎過(guò)程的繼續(xù)

Continuationofthecrushingprocess磨礦

Oregrinding浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess磨礦粒度

Grindingparticlesize棒磨機(jī)

Rodmill決定

Decision嵌布粒度選別方法

?Separationmethodsbasedondisseminatedgrainsize磨礦設(shè)備

Grindingequipment球磨機(jī)

Ballmill棒磨機(jī)

Rodmill自磨機(jī)

Autogenousmill破碎過(guò)程的繼續(xù)

Continuationofthecrushingprocess磨礦

Oregrinding浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess礦石粉碎過(guò)程中礦粒尺寸逐漸由大變小

Thesizeoforeparticlesgraduallychangesfromlargetosmallduringorecrushing及時(shí)分出合格細(xì)粒

Timelyclassificationofqualifiedfines防止過(guò)粉碎

Protectionagainstover-crushing提高磨機(jī)生產(chǎn)率

Increasemillproductivity分級(jí)設(shè)備

Classificationequipment浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess分級(jí)

Grading合格粒子→分級(jí)溢流（篩子為篩下產(chǎn)物）→選別作業(yè)Qualifiedparticles→Classifieroverflow(equivalenttoscreenundersize)→Separationoperation粗?！C(jī)Coarse→GrindingMill定義

Definitions在介質(zhì)（水或空氣）中，物料按其粒度的不同分成若干級(jí)別的作業(yè)，叫做分級(jí)作業(yè)。

Inmedia(waterorair),materialsaredividedintoseverallevelsofworkaccordingtotheirparticlesize,whichiscalledgradingwork.浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess分級(jí)

Grading機(jī)械分級(jí)機(jī)Mechanicalclassifier水力旋流器Hydrocyclone磨礦循環(huán)中的分級(jí)設(shè)備

Classificationequipmentinthegrindingcycle浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess分級(jí)

Grading選礦廠中廣泛采用的機(jī)械分級(jí)機(jī)是螺旋分級(jí)機(jī)

Themechanicalclassifierwidelyusedinmineralprocessingplantisspiralclassifier

.優(yōu)點(diǎn)

Advantages操作方便

Easyoperation工作安全可靠

Worksafelyandreliably構(gòu)造簡(jiǎn)單

Simpleconstruction浸出過(guò)程的原料制備

Rawmaterialpreparationofleachingprocess分級(jí)

Grading料液

Feedliquid磨好的礦

Milledore浸劑或催化劑等

Infusionorcatalyst