Daim ntawv thov ntawm PAC hauv kev lag luam papermaking

Polyaluminium chloride (PAC) yog cov tshuaj tseem ceeb hauv kev lag luam papermaking, ua si ib tug pivotal lub luag hauj lwm hauv ntau theem ntawm cov txheej txheem papermakaking. PAC yog qhov sib xyaw ua ke feem ntau siv los txhim kho kom muaj kev txuag ntawm cov nplais, cov puv tsev, thiab cov fibers, yog li kev txhim kho cov ntawv ua haujlwm tag nrho thiab zoo ntawm cov ntawv ntau lawm.

Coagulation thiab flocculation

Lub luag haujlwm tseem ceeb ntawm PAC hauv papermaking yog nws cov coagulation thiab flocculation yam ntxwv. Thaum lub sij hawm cov txheej txheem papermakakaking, dej yog tov nrog cellulose fibers los ua slurry. Qhov slurry no muaj qhov tseem ceeb ntawm cov khoom noj zoo thiab yaj uas yuav tsum tau muab tshem tawm cov ntawv zoo. PAC, thaum ntxiv rau cov slurry, neutralizes cov nqi tsis zoo ntawm cov ntawv raug tshem tawm, ua rau lawv txhaws ua ke mus rau hauv kev sib sau ua ke loj dua lossis cov flocs. Cov txheej txheem no tau txais kev tshem tawm ntawm cov khoom zoo no thaum lub sijhawm ua kua, ua rau muaj dej ntshiab thiab txhim kho cov fiber ntau.

Txhim Kho Kom Ceev Thiab Plav

Kev tuav tseg ntawm cov fibers thiab cov fillers yog qhov tseem ceeb hauv kev tso cai raws li nws ncaj qha cuam tshuam rau cov ntawv lub zog, kev ntxhib los mos, thiab txhua yam zoo. PAC txhim kho cov khoom tuav ntawm cov ntaub ntawv no los ntawm kev tsim cov flocs loj dua uas tuaj yeem khaws tau yooj yim ntawm daim ntawv tshuab xaim. Qhov no tsis tsuas yog txhim kho lub zog thiab cov ntawv zoo tab sis kuj txo tus nqi ntawm cov khoom muaj sia, ua rau cov nqi txuag tau. Tsis tas li ntawd, txhim kho cov dej ntws los ntawm PAC txo cov ntsiab lus dej hauv daim ntawv, yog li txo lub zog uas yuav tsum tau ua kom qhuav thiab txhim kho cov txheej txheem papermaking.

Txhim kho cov ntawv zoo

Daim ntawv thov ntawm PAC hauv papermaking pab txhawb kev txhim kho kom txhim kho cov ntawv zoo. Los ntawm kev txhim kho cov kev ua kom zoo ntawm kev nplua thiab fillers, pac pab sau cov ntawv nrog tsim tau zoo dua, cov khoom sib luag, thiab cov khoom sib xws. Qhov no ua rau txhim kho tshuab luam tawm, smoothness, thiab tag nrho cov tsos ntawm daim ntawv, ua rau nws haum ntau rau cov tshuab luam ntawv zoo thiab ntim cov ntawv thov.

Txo ntawm lub cev thiab cov cim hauv kev kho kom zoo

Biochemical cov pa oxygen thov (COD) yog ntsuas ntawm cov tshuaj organic tam sim no nyob rau hauv cov txheej txheem pov tseg hauv cov txheej txheem papermakaking. Qib siab ntawm lub cev thiab cov cim qhia txog qib kev ua qias tuaj, uas tuaj yeem cuam tshuam rau ib puag ncig. PAC ua kom zoo rau lub cev thiab cov cim qib los ntawm kev co coagulating thiab tshem cov organic paug los ntawm cov dej khib nyiab. Qhov no tsis tsuas pab hauv lub rooj sib tham ib puag ncig tab sis kuj tseem txo cov nqi kho mob uas cuam tshuam nrog kev tswj hwm kev siv dej.

Hauv cov ntsiab lus, polyaluminum chloride yog qhov tseem ceeb ntxiv rau hauv kev lag luam papermaking, muab ntau cov txiaj ntsig ntawm cov txheej txheem papermaking thiab qhov zoo ntawm cov khoom kawg. Nws lub luag haujlwm hauv kev ua yeeb yam thiab flocculation, txhim kho lub cev thiab kev txhim kho ntawm cov ntawv zoo ua rau nws tsis muaj feem cuam tshuam hauv niaj hnub no.