氨碱法蒸氨系统节能降耗的改造马玉清

816000、、、、、、、、、、。28t/a100t/a。。TQ114．1B2096－3408201802－0042－03TransformationofSavingEnergyandＲeducingConsumptionbyAmmoniaAlkaliMethodinAmmoniaBaseSystemMAYu－qingSodaPlantQinghaiSaltLakeMagnesiumCo．Ltd．Golmud816000ChinaAbstractＲawsaltlimestonecokewasthemainrawmaterialforsodaplanttoproduceso-daashinQinghaiSaltLakeMagnesiumIndustryCo．Ltd．whichusedammoniaastheintermediar-ythroughbrinerefininglimestonecalcinationashammoniasteamedammoniaabsorptioncar-bonationfiltrationcalcinationhydrateproductionwasoutoftheordinaryheavysodaash．Filte-ringthemotherliquidaddinglimereactionanddistillationrecoveryofammoniaintheprocessofproductioncyclecontinuouslycirculationthenthecycleisimplementedbymeansofdistillationprocess．ButastheendofthecirculareconomyforSodaplantproductionloadiscloselyrelatedtoeachprojectcyclebetweenthematerialsupplyaccordingtotheirownconditionofsodaashproduc-tionloadbiggestcanreach280000tons/yearandfordesigncapacityof1milliontons/yearofso-daplantthereisalotofpipelinemaintenanceequipmentandmaterialwasteproblemundersmallloadproduction．Itmainlyintroducedalargesodaashproductionenterpriseinsteamedammoniawithsmallloadofsomedefectandtechnologicalupgrading．Keywordsammonia－sodaprocesssteamedammoniatowerenergy－savingandcost－reducingtechnicalreform2017－08－241990—。13139006008。。24JournalofSaltScienceandChemicalIndustry47220182DOI:10.16570/j.cnki.issn1673-6850.2018.02.014。。、。10．69MPa、。、、。。10km。。22．1100t/a1．25mol/L～1．35mol/L2．0mol/L～2．75mol/L5．0mol/L～5．25mol/L4．4mol/L～4．55mol/L、1．12～1．18。28t/a、DN200DN200。2．2。。。2．32014－09201680%～90%。。2．4F。34、。10mDN30090°45°。DN25。。31。2。3、。4。4。121．6m1．6m。檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪殏殏殏殏“”52t1．77%，，，。，、－;，334151．95t，;33412000t，。88m～1553m，2m～35m，1．77%，0．12%。，。0．8%～1．4%，1．4%(1．465%～3．55%)。。，2000。“，，”，“”，、。“”。，，，。4447220182