Daim Ntawv Thov Qhov Zoo Ntawm Hlau Dawb Txhuas Sulfate hauv Papermaking

1. Cov nqi qis calcium carbonate tuaj yeem muab ntxiv, uas tsis yog tsuas yog txo cov nqi tsim khoom, txhim kho cov xim dawb thiab folding tsis kam ntawm daim ntawv, tab sis kuj kov yeej qhov tsis zoo ntawm cov nplaum hluavtaws (xws li AKD), xws li plam thiab nyuaj rau kev tswj cov degree ntawm qhov loj me;
2. Kev tuav thiab pom cov teebmeem ntawm cov slurry yog qhov zoo dua qub;
3. Cov tsos yog dawb, nrog cov ntsiab lus tsis tshua muaj hlau, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev tsim cov ntawv zoo;
4. Kev ua tau zoo ntawm daim ntawv tau txhim kho mus rau qhov sib txawv ntawm txhua qhov kev ntsuas tshwj tsis yog qhov ntev ntawm pob txha;
5. Nws yog cov khoom ua ntej hydrolyzed ntawm aluminium chloride, nrog rau cov qib qis ntawm hydrolysis, thiab qhov txo qis hauv pH yog me dua li ntawm aluminium sulfate;
6. Muaj txhuas sulfate tsuas yog haum rau acidic sizing, thaum hlau dawb txhuas sulfate yuav siv tau rau sizing nyob rau hauv acidic thiab nruab nrab ib puag ncig, ho txo ​​corrosion rau lub cev thiab ua kom dawb dej kho tau yooj yim dua;
7. Polyaluminium chloride tuaj yeem tswj tau qhov zoo ntawm qhov nruab nrab lossis txawm tias alkaline ntau yam, tsis zoo li txhuas sulfate, uas sai sai ua Al (OH) 3 precipitates. Ntxiv mus, vim pre hydrolysis ntawm polyaluminium chloride, nws tsis ua rau ib tug tsawg pH nqi nyob rau hauv lub system.