第36卷第1期2023年2月同位素JournalofIsotopesVol.36No.1Feb.2023放射性高盐废液干燥成盐技术研究骆枫,吴光辉,范继珩,范椿欣,李振臣(中国核动力研究设计院四川省退役治理工程实验室,成都610213)摘要:放射性废物处理中,放射性废液的体积和所含放射性总量在“三废”中占比较大,为使废物最小化,本研究围绕放射性高盐废液干燥成盐技术开展技术路线论证、工艺设计,研制放射性高盐废液微波干燥成盐工程样机,并完成样机加工制造、安装调试及性能验证。工程样机验证实验结果表明,装置运行过程稳定,干燥速率约6~8L/h,产物不含游离水,桶内及桶壁温度最高约100℃,桶内压力在1~2kPa之间。本研究结果可为放射性高盐废液干燥成盐技术及专用工装设计提供参考,并为后续工程应用奠定基础。关键词:微波干燥;放射性高盐废液;工程样机;可靠性中图分类号:TL941文献标志码:A文章编号:1000-7512(2023)01-0029-06收稿日期:2021-09-16;修回日期:2022-03-04doi:10.7538/tws.2021.youxian.075Drying-into-SaltTechnologyofHighSalinityRadioactiveLiquidWasteLUOFeng,WUGuanghui,FANJiheng,FANChunxin,LIZhenchen(NuclearPowerInstituteofChina,SichuanProvincialEngineeringLaboratoryofNuclearFacilityDecommissioningandRadwasteManagement,Chengdu610213,China)Abstract:Theradioactivewastetreatmenthasbeenbroughtintofocuswiththerapidlydevelopingofthenuclearindustry.Duetothelargeproportionofvolumeandradioactiv-ityofradioactivewaterinradioactivewaste,thetreatmentofradioactivewaterdrawspeople’sattentionintheprocessofwasteminimization.Thisresearchhassystematical-lycarryoutmechanismstudy,engineeringdesign,devicedevelopmentandperformanceverificationsurroundthedrying-into-salttechnologyofhighsalinityradioactivewater.Theresultsshowthattheengineeringprototyperunssteadily.Thespeedofdryingisabout6-8L/h,andtheproductdoesn’tcontainfreewater.Meanwhile,thetemperatureofinsideandsurfaceofdrumis100degreecentigrade.Thepressureinsidethedrumlocatesat1-2kPa.Thisworkwillprovideimportantreferencefortheexperimentalstudyanddevicedevelopmentofdrying-into-salttechnologyofhighsalinityradioactivewater.Also,itwillbeagreathelptofollow-upengineeringapplicationofthisnewtechnology.Keywords:microwavedrying;radioactivew...
