水平式真空脱滤机功能对比课件

VACUUMFILTRATIONCOMPETITON真空过滤比较VACUUMFILTERS:PROCESSSTEPS真空过滤机：工艺步骤Cakeformation,

滤饼形成Cakewashing(ifrequired)

滤饼冲洗（可选）Cakedrying

滤饼干燥

Cakedischarge

滤饼排放Vacuumfiltration真空过滤Equivalentsystemwithtraditionnalpressurefilters传统压滤机系统NOTA:Filter#meansdualfilterforcontinuousprocess注意：每处带滤机都需要双倍的带滤机以满足连续工艺的要求Vacuumfiltration

真空过滤INDUSTRIALVACUUMFILTERS工业用真空过滤机Filtratereceiver滤液接收灌Cakewashing滤饼冲洗Slurry料浆Cakedischarge滤饼排放Filtrate滤液Vacuumpump真空泵Vacuumfilter真空过滤机Filtrateextraction:滤液抽取Extractionpump抽取泵Or或者Barometricleg开口罐Or或者Auto-extractorreceiver自动抽取器TYPEOFEQUIPMENT设备类型Horizontalbeltfilter水平带式过滤机Movingsupport:Belt

移动支撑：皮带

Rotaryvacuumdrum

filter,真空转鼓式过滤机Movingsupport:Drum

移动支撑：转鼓

Rotaryvacuumdiscfilter,

转盘式过滤机Movingsupport:Disc

移动支撑：转盘Tablefilter

翻盘式过滤机Movingsupport:Table

移动支撑：翻盘Horizontalvacuumbeltfilter水平真空带式过滤及Horizontalvacuumbeltfilter水平真空带式过滤机Disadvantages:缺点：spacerequired,需要的空间

incompatibilitywithsolvents,和溶剂不相溶

totalhooding(tightenclosed)isdifficultforimportantsurfaces.对重要表面做整体护罩很困难Rotaryvacuumdrumfilter转鼓式真空过滤机Rotaryvacuumdrumfilter转鼓式真空过滤机Features特点lowspacerequirement,所需空间小possibilitytocoverfilter,可覆盖过滤机possibilitytomakeaairtightfilter,可以做成密封的过滤机highavailability(>95%),高利用率(>95%)lowinvestmentcost,operationcost,powercost,低投资，运行成本，能耗成本processflexibility(NR,TS,NP,RL,RP,String,CA,SPtypes)工艺的灵活性mayworkwithsolventorinverycorrosiveatmosphere(PP)可以与溶剂一起运行，或可以在强腐蚀性环境运行maybeusedasaclarifier(NPtype)可以作为澄清器用gooddrynessperformance(RPtype)优良的干燥效果worldwidemoreusedvacuumfiltersolution….世界范围内使用较多的真空过滤机类型Rotaryvacuumdiscfilter转盘式真空过滤机Rotaryvacuumdiscfilter转盘式真空过滤机

Features特点verylargefiltrationarea,非常巨大的过滤空间simpleconception简单的结构lowexploitationcost低开发成本

Disadvantage:缺点Nocakewashingpossibility不能冲洗滤饼onlyuseforproducteasytofiltrate只能用于过滤容易过滤的产品Tablefilter翻盘式过滤机Tablefilter翻盘式过滤机

Disadvantages缺点Highcapitalcost,高成本Onlydesignedforphosphoricacidapplication

专为磷酸产品设计2maintypesofwashingprocess两种主要的冲洗工艺Cocurrentwashing正流冲洗Oftenused经常使用Easytooperate易于操作冲洗水入口浆料入口滤出液冲洗液出口2maintypesofwashingprocessMethodicorcountercurrentwashing逆流冲洗Usedwhenproblemofwashingsupply当冲洗水供应量有限时冲洗水入口浆料入口滤出液冲洗液出口浆料入口浊液罐ProcessCompetition工艺比较

Filterpress挤压机Pressurefilter(Laroxtype)压滤机（如LAROX）

Beltfilterwithoutrubberbelt无橡胶皮带的带式过滤机Settling(CounterCurrent

Decantation),沉淀式（逆流沉降槽）Centrifuges离心机Cycloneseparation漩涡分离

Screening筛分

U-filtrationU型过滤ProcessCompetition工艺比较PRESSUREFILTER压滤机Itisnotworkingundervacuum….非真空条件下运行It

’saverticalpressfilter…..垂直式压滤机PRESSUREFILTER压滤机Features特点Verygooddryness非常优秀的干燥效果Minimalfootprint占地面积小Novacuumsystemrequired无须真空系统Disadvantages缺点Discontinuousfilter非连续过滤的过滤机Lesswashingefficiency(Problemofdist.)冲洗效率低

Highoperatingcost高运行成本

Lowavailability低利用率PRESSUREFILTER压滤机Foryourinformation…...信息FILTRESPHILIPPEBrochures:1975PHILIPPE过滤机样本：1975BELTFILTERWITHOUTBELT无皮带的带式过滤机Features特点Norubberbelt无须皮带Consequences结果Normallycheaper更便宜Canbeinstalledforchemicalapplicationinwhichrubberisnotallowed可以在和橡胶不能共存的化学产品上使用BELTFILTERWITHOUTBELT无皮带的带式过滤机Disadvantages:缺点Cannothavelargefiltrationareaequipment不能做到较大的过滤面积Cracksinthecakeduetostopofvacuum:Washingefficiencydecrease由于真空的停顿造成滤饼裂缝：冲洗效率降低Durationlifeoftheclothreduced:Alltheloadsissupportedbythecloth滤布寿命降低：所有的负载都由滤布支撑Filtratecannotbeclearbecausecompromisebetweensolidity&openingNonscalableequipment由于固体和开口之间没有缓冲设备造成滤液浑浊WARNING警告Somecustomersarespeakingabout«

belt

»

filters,butintheirmind:一些客户谈论带式过滤机，但是在他们的概念里belt=Filtrationcloth皮带=滤布Specially,whentheywanttocompareourHVBFwith:特别是当他们想将我们的HVBF和以下设备比较的时候：Pressurefilter(Laroxtype)压滤机Beltfilterwithoutrubberbelt无皮带的带式过滤机COUNTERCURRENTDECANTATION逆流倾出Features特点Nofiltrationequipment无须过滤设备Verylowoperatingcost(lowenergycost)非常低的运行成本（低能耗）Lowmaintenance低维护成本COUNTERCURRENTDECANTATION逆流倾出Disadvantages缺点Maximalfootprint

大占地面积Highwaterconsumption高水量消耗Verylongresponse

time长时间的等待SolidsarestillinliquidphaseHighcapitalcost固体仍然存在于液体中高投资ProcessCompetitioncaracteristics工艺特点比较CONCLUSION结论Evenwithgoodexperience,weneedtoknowenvironmentoftheproblem:即使有丰富的经验我们也需要知道一下环境因素Solids

concentration固液比

Flowrate流量

Granulometry粒径分布

Temperature温度

Viscosity,粘稠度

Chemicalapsect(corrosive?Toxic?,which

material

?)化学性质Objectivesoftheplant(productivity?,dryness?Performance?)工厂的意图（产量？干燥效果？性能表现？）

Filteraid?Floculant?过滤辅助

Allowablespaceforequipment?设备的放置空间

Isthereaproblemforwashingliquidsupply?冲洗液是否足够

Isthecaketobedry?Howmuch?滤饼需要干燥吗，什么程度？Example:例如：Hydromet.Process降压药工艺

Differentsolutions:不同的工艺方法：HVBF«

Good

»washer优秀的冲洗RVDF«

Bad

»washer不良的冲洗Underpressurefilters压滤机Discontinuous不连续

Onlyforlow%w/wsolids只能用以固体百分比低的料浆Countercurrentdecantation倾出工艺Requireshighvolumeofliquid要求大量液体CONCLUSION结论Aquestionnary