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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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