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1、Analysisonthecomparisonoftheadvantagesdisadvantagesofthehotpressuresaltvacuumsaltthedevelopment.PengChuanFengFuyuhang(LightIndustryDesignInstituteCo.Ltd.ofZigongCitySichuanZigong643000)Abstract:onewaythatcouplethevacuums

2、althotpressuresaltwasdevelopedinthispaperthroughthevacuationontheprincipleofhotpressuresalttheanalysisontheadvantagesdisadvantagesofhotpressuresaltathome.Whichcannotonlymakefulluseoftheexcessheatofvacuumsaltpowerstationt

3、oattainthesteampowerbalancebutalsoplaytheadvantagesofhotpressuresalttoachievebetterenergyefficiency.Keywds:hotpressuresalt，gainslosses，steampowerbalance1INTRODUCTIONInthefaceofkeencompetitiontheenergyconsumption、environm

4、entprotectionproductqualitygapofvacuumsaltindustrybetweenhomeabroadcometoemerge.Especiallyinthewakeoftheprogressofindustrialtechnologyenergysavinghasbecomethefocusofattentionofvariousenterprisesindertoimprovethetechnolog

5、icallevelofdomesticvacuumsaltmakinguseofameadvancedwayistheinevitabletrendofthesaltmanufacturetechnologydevelopment.Atpresentthecommonwayofvacuumsaltmanufactureisthemultieffectevapationfrom3to4effectuptonowsomemanufactur

6、ersareadoptingthe5effectevapationallthosewayistomakefulluseofheatreduceenergyconsumption.butsomeFeigncompaniesutilizethehotpressuresalttoreducepowerconsumption.Thepurposeofthispaperistofindameenergyefficientmecosteffecti

7、veproductionwaythroughthecomparisonofhotpressuresaltvacuumevapationsaltthesummaryofthegainslossesoftheheatpressuresaltwhichhadbeenusedbydomesticenterprises.Alsohopetothrowasprattocatchaherringdiscusswithcolleaguesinderto

8、betterachievethepurposeofsavingenergyreducingenergyconsumption.2INTRODUCTIONOFHOTPRESSURESALtHotpressuresaltalsocalledasheatpumpsmechanicalsecondarysteampressuringsalt.Itconsumesomepartofhighqualityenergy(heatmechanicale

9、nergyelectricityetc.)shiftedfromthelowtemperaturesteamtothehightemperaturesteamthroughthethermodynamiccyclecompressionprocess.Theacteristicsoftheprocessareonlyoneevapationtankpositivepressureinvolved.Indertoenablethetemp

10、eratureofbrinetoincreasingattentionfitsenergysavingeffectwhichcanreducethecostofsaltmanufacture.Thedevelopmentofhotpressuresalttechnologyisearlierabroadasearlyas1930EscherWyssCo.ofSwitzerlhasmanufacturedacentrifugalturbi

11、necompresswhichgiverisetothewideusageofhotpressuresalt.Tothe70s20thcenturyhotpressuretechnologyhasbeenestablished.AtpresenttherearemanyEuropeancompaniestousehotsaltitbecomemepopularespeciallyintheareaswithadequatepowerlo

12、wpriceelectricity.suchasthehotpressuresaltevapationequipmentwithproductioncapacityof1.5milliontonsestablishedinItalybyFrenchcompanyachieveahighdegreeofautomationcontrol.Therearemanydomesticenterprisesaretointroducethiste

13、chnologyimprovethecompetitivenessoftheindustry.4GAINSLOSSESOFHOTPRESSURESALT4.1introductionoftheoverallsituationSichuangZhangjiabaZigongsaltchemicalplanthadimptedthehotpressuresaltmanufacturetechnologyinthelate80sof20thc

14、enturywhichisthefirstcompanyadoptedthistechnology.Zhangsaltfactyhastwodeviceswithatotalproductioncapacityof230000tonsatthattimeofwhichthevacuumsaltproductioncapacityis130000tons(theactualproductioncapacityisupto150000ton

15、s)thehotpressuresaltproductioncapacityis100000tons.FromthematerialpointofviewtheentirehotpressuresaltequipmentincludingdevicespipeswereimptedtheevapationTankwasmadefromMonelalloytheothersweremadefromcoppernickelalloystai

16、nlesssteelrecyclingpumpscentrifugesvibrationdrybedallwereadvancedequipmentsothequalityofthesaltproductionintermofparticlesizewhitenesschemicalcompositionreachthedomesticadvancedlevel.Since1989thehotsaltinstallationofZhan

17、gjiabasaltchemicalplantZhanghavebeenrunningfmethan4yearsthecumulativesaltproductionwascloseto200000tons.Butitsuspendedproductionfavarietyofreasons.Thereasonwhythedevicefailedtoachieveitsmainpurposeisnottechnicalproblembu

18、tsomeotheraspects.Severalreasonswereelabatedasfollow:.4.2OutputmatchZhangjiabasaltproductionplanthadmanufacturedsaltwithhotpressuresaltfmethan4yearsthecumulativeproductionofsaltisonly196000tonsonlyaccountf47%ofthedesignc

19、apacity(100000tons)whichsignificantlylowerthanthedesignedcapacity.Takethe1992withhehighest1993withthelowestproductionyieldasanexamplethepercentageoftheannualproductioncapacitytodesignproductioncapacityasfollows:yearYearl

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