濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess課程導入

Courseguide濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃縮池

Concentrationtank課程導入

Courseguide濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess上清液區(qū)

Supernatantzone

上清液澄清區(qū)

Supernatantclarificationzone

混合澄清區(qū)

Mixedclarificationzone

濃泥澄清區(qū)

Thickenedmud?clarificationzone

濃泥區(qū)

Thickenedmud?area

給料

Feeding溫流

Temperatureflow底流

Underflow課程導入

Courseguide濃縮的具體過程是怎樣的？Whatisthespecificprocessofconcentration?影響濃縮過程的因素有哪些？Whatarethefactorsthataffecttheconcentrationprocess?濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess混合液分離

Mixedliquidseparation物理化學處理

Physicochemicaltreatment

凝聚劑

Coagulant

絮凝劑

Flocculant

未絮凝顆粒凝聚轉入濃密的底流

Unflocculatedparticlesagglomerateintodenseunderflow

澄清的溢流

Clarifiedoverflow

氯化鋁絮凝劑

Aluminumchlorideflocculant濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess混合液分離

Mixedliquidseparation工程操作

EngineeringOperations

選用合適的液固分離方法

Choosetheappropriateliquid-solidseparationmethod

減少濃泥水分

Reducethemoisturecontentofthickenedmud?

體積盡量大的上清液

Supernatantwiththelargestvolumepossible

濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess上清液區(qū)

Supernatantzone上清液澄清區(qū)

Supernatantclarificationzone混合澄清區(qū)

Mixedclarificationzone濃泥澄清區(qū)

Thickenedmud?clarificationzone濃泥區(qū)

Thickenedmud?area給料

Feeding溫流

Temperatureflow底流

Underflow濃縮槽

Concentrationtank

混合液分離

Mixedliquidseparation濃泥盡量少

Aslittlethickenedmud?aspossible

濃泥區(qū)保持在最低高度

Keepthethickenedmud?areaatthelowestheight

獲得盡量多、澄清良好的上清液

Obtainasmuchsupernatantaspossiblewithgoodclarity

濃縮的最終目

Theultimatepurposeofconcentration混合液分離

Mixedliquidseparation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess

固體顆粒受重力作用而自然沉降，將其從流體中分離出來的操作稱為重力沉降。Solidparticlesnaturallysettleunder

theactionofgravity,andtheoperationofseparatingthemfromthefluidiscalledgravitysedimentation.濃縮池

Concentrationtank沉降

Sedimentation濃縮沉降原理

Principleofconcentrationandsedimentation自由沉降

Freesettlement干涉沉降

Interferencesettlement概念

Concept濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess顆粒在沉降過程中不受其它顆粒的影響和干擾，流體中固體含量很少。Theparticlesarenotaffectedanddisturbedbyotherparticlesduringthesettlingprocess,andthesolidcontentinthefluidisverysmall.顆粒在沉降過程中往往要受到周圍顆粒的影響。Particlesareoftenaffectedbysurroundingparticlesduringthesettlingprocess.沉降

Sedimentation濃縮沉降原理

Principleofconcentrationandsedimentation自由沉降

Freesettlement干涉沉降

Interferencesettlement

利用液、固體密度的不同，使礦漿中固體粒子在重力作用下從溶液介質中沉淀而使溶液得到澄清的過程。Usingthedifferenceofliquidandsoliddensity,thesolidparticlesintheslurryprecipitatefromthesolutionmediumundertheactionofgravitytoclarifythesolution.濃縮池

Concentrationtank濃縮

Concentration概念

Concept濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃縮沉降原理

Principleofconcentrationandsedimentation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃縮沉降原理

Principleofconcentrationandsedimentation濃縮后的固相仍然是一種液固比為(2~4):1的濃泥，而有的上清溶液也含有少量的懸浮物。Theconcentratedsolidphaseisstillathickenedmud?withaliquid-solidratioof(2-4):1,andsomesupernatantsolutionsalsocontainasmallamountofsuspendedsolids.濃縮

Concentration濃縮是使礦漿進行液固分離的初步作業(yè)

Thickeningisthepreliminaryoperationtocauseliquid-solidseparationintheslurry濃縮沉降原理

Principleofconcentrationandsedimentation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃密機

Thickener分離懸浮液的重力沉降設備。Gravitysettlingequipmentforseparatingsuspensions.沉降槽/濃密機

Settlingtank/thickener分離氣相中懸浮固體顆粒的重力沉降設備。Gravitysettlingequipmentforseparatingsuspendedsolidparticlesinthegasphase.沉降室/降塵室

Settlingchamber/dustreductionchamber濃縮沉降原理

Principleofconcentrationandsedimentation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃密機

Thickener沉降槽

Settlingtank

沉降室

Settlingchamber

用重力完成沉降操作

Completethesettlingoperationbygravity預處理設備/初級分離設備

Pretreatmentequipment/primaryseparationequipment

沉降速度

Settlingvelocity分離效率

Separationefficiency濃縮沉降原理

Principleofconcentrationandsedimentation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess完全利用沉降過程來提高濃泥濃度，并得到澄清液的工業(yè)設備（可用于浸出液的處理）Industrialequipmentthatcompletelyusesthesedimentationprocesstoincreasetheconcentrationofthickenedmudandobtainclarifyingliquid(whichcanbeusedforthetreatmentofleachingliquid).濃密機

Thickener濃縮槽/濃密機

Concentrationtank/thickener喂料管

Feedingtube絮凝劑管Flocculanttube驅動裝置Driveunit溢流槽Overflowtank耙架Rakeframe進料倉Feedbin傳動軸Transmissionshaft濃縮沉降原理

Principleofconcentrationandsedimentation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess中心傳動濃縮槽

Centraldriveconcentrationtank周邊傳動濃縮槽

Peripheraldriveconcentrationtank濃密機類型

Typeofthickeners按傳動方式

Bytransmissionmode濃縮沉降原理

Principleofconcentrationandsedimentation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess錐底濃縮槽

Conebottomconcentrationtank斜底濃縮槽

Inclinedbottomconcentrationtank按槽的形狀

Bytheshapeofthegroove濃密機類型

Typeofthickeners濃縮沉降原理

Principleofconcentrationandsedimentation濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess影響濃縮過程的因素都有哪些

Whatarethefactorsthataffecttheconcentrationprocess?濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess顆粒性質

Particleproperties絮凝劑

Flocculant混合液的密度差

Densitydifferenceofmixture

液固比

Liquid-solidratio

溶液性質

Solutionproperties

礦漿溫度

Slurrytemperature

礦漿的流量

Flowrateofslurry

濃縮槽內固體物數(shù)量

Numberofsolids

insidetheconcentrationtank

濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess大顆粒的粒子比小顆粒的粒子沉降速度大。Particlesoflargeparticleshaveagreatersettlingspeedthanthoseofsmallparticles.球形或近似球形的顆粒或顆粒聚集體，比相同重量的非球形（片狀或針狀）顆粒沉降速度大得多。Sphericalorapproximatelysphericalparticlesoraggregatesofparticlessettleatamuchgreaterratethannon-spherical(flakyorneedle-like)particlesofthesameweight.顆粒性質和絮凝劑

Particlepropertiesandflocculants顆粒性質

Particleproperties影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess可將粒度不同、形狀不規(guī)則的顆粒，變成能夠大大改善懸浮液沉降性能的球形聚集體。2Particleswithdifferentparticlesizesandirregularshapescanbeturnedintosphericalaggregatesthatcangreatlyimprovethesedimentationperformanceofsuspensions.聚丙烯酰胺絮凝劑

Polyacrylamideflocculant顆粒性質和絮凝劑

Particlepropertiesandflocculants影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess絮凝劑

Flocculant濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess絮團大?。ㄔ谀撤N程度上還有其形狀）Flocsize(andtosomeextentitsshape)絮凝劑類型

Typeofflocculant

絮凝程度

Degreeofflocculation

絮團沉降速度

Flocsettlingvelocity

顆粒性質和絮凝劑

Particlepropertiesandflocculants影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess絮凝劑吸附和分散的程度

Degreeofflocculantadsorptionanddispersion

濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess冶金生產(chǎn)

Metallurgicalproduction動物膠

Animalglue鋁鹽無機高分子絮凝劑

Aluminumsaltinorganicpolymerflocculant鋁鹽無機陽離子絮凝劑

Aluminumsaltinorganiccationicflocculant人工合成的陽離子型有機高分子

Artificiallysynthesizedcationicorganicpolymer顆粒性質和絮凝劑

Particlepropertiesandflocculants影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess澄清越快、越徹底

Acceleratedclarification,flawlesslyclarified混合液的密度差和液固比

Densitydifferenceandliquid-solidratioofmixedliquid密度差

Densitydifference液固比

Liquid-solidratio越大

Thebigger影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess造成澄清困難

Causesdifficultyinclarification濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess技術條件

TechnicalConditions

絮凝劑

Flocculant

澄清性質

Clarifyingnature

溶液性質

Solutionproperties影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess溶液膠體含量高

Highcolloidcontentofsolution實際生產(chǎn)

ActualproductionTip

礦漿酸度會影響澄清分離效果，不同的酸度會得到不同澄清效果的沉淀物Theacidityofslurrywillaffecttheclarificationandseparationeffect,anddifferentaciditywillleadtoprecipitateswithdifferentclarificationeffects.氧化鋅煙塵酸性浸出時礦漿的pH值小于2，礦漿有良好的澄清效果，溶液中的硅酸以真溶液狀態(tài)存在。ThepHvalueoftheslurryislessthan2duringacidicleachingofzincoxidesmoke,andtheslurryhasgoodclarificationeffect.Thesilicicacidinthesolutionexistsinthestateoftruesolution.在鋅焙砂中性浸出時的礦漿和空氣氧化除鐵礦漿的pH值一般控制為5.2~5.6，在此pH值條件下最有利于細粒膠狀物（如氫氧化鐵或硅酸）凝聚成大顆粒。ThepHvalueofslurryandairoxidationironremovalslurryduringneutralleachingofzinccalcineisgenerallycontrolledtobe5.2-5.6,andthispHvalueismostfavorableforfinecolloids(suchasironhydroxideorsilicicacid)toagglomerateintolargeparticles.氧化鋅煙

塵Zincoxidesmoke

.溶液性質

Solutionproperties影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess加速礦漿顆粒運動

Accelerateslurryparticlemotion

降低礦漿黏度

Reduceslurryviscosity

礦漿澄清分離

Slurryclarificationandseparation

溫度儀

Thermometer礦漿溫度

Slurrytemperature影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess礦漿溫度高

Highslurrytemperature

提高溫度要考慮成本和溶劑的沸點，一般控制在40～50℃范圍內。Whenincreasingthetemperature,thecostandtheboilingpointofthesolventshouldbeconsidered,whichisgenerallycontrolledwithintherangeof40-50°C.濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess澄清區(qū)降低

Clarificationzonereduction

影響沉降過程

Influencethesettlementprocess

定期排濃泥

Regulardischargeofthickenedmud

濃縮槽內固體物數(shù)量

Numberofsolidsinconcentrationtank影響濃縮過程的因素

Factorsaffectingtheconcentrationprocess槽內固體物料過多

Toomuchsolidmaterialintank

嚴重時

Inseverecases扒渣耙突然停車、扭斷

Heavy-dutyslagharrow?Suddenstop,twist濃縮過程及影響濃縮過程的因素

Concentrationprocessandfactorsaffectingtheconcentrationprocess礦漿進入濃縮槽的流量對間斷進液濃縮最為重要。流量過大或忽大忽小，會造成上清區(qū)混濁甚至無上清區(qū)。

Theflowrateofpulpenteringtheconcentrationtankisthemostimportantforintermittentliquidfeedandconcentration.?Excessiveorfluctuatingflowratescauseturbidityinthesupernatantareaandmayevenresultinitscompletedisappearance.?上清液區(qū)

Supernatantzone上清液澄清區(qū)

SupernatantClarificationzone混合澄清區(qū)

Mixedclarificationarea濃泥澄清區(qū)

Thickenedmud?Clarificationzone濃泥區(qū)

Thickenedmud?area給料

Feeding溫流

Temperatureflow底流

Underflow上清區(qū)高度

Heightof