Txoj kev siv defoamer rau papermaking

Nyob rau hauv cov txheej txheem ntawm kev tsim khoom, ntau cov phom sij yuav raug tsim, thiab defoamer yuav tsum tau ntxiv. Nws yog dav siv los tshem tawm cov teeb meem ua npuas ncauj tsim nyob rau hauv cov txheej txheem ntawm latex, textile sizing, zaub mov fermentation, biomedicine, txheej, petrochemical, ntawv ua, industrial tu thiab lwm yam lag luam.Silicone emulsiondefoamer siv ceeb toom: ua ntej siv los yog sampling yuav tsum tau tag nrho do cov emulsion. Roj-hauv-dej emulsion tuaj yeem diluted arbitrarily, tab sis tib lub sijhawm, kev ruaj ntseg ntawm emulsion kuj yuav poob qis, xws li stratification. Thaum diluting, thov ntxiv dej rau lub defoamer thiab do maj mam. Txij li thaum lub emulsion yog qhov zoo tshaj plaws ruaj khov ntawm nws cov thawj concentration, lub diluted emulsion yuav tsum tau siv nyob rau hauv ib lub sij hawm luv luv. Emulsions yog rhiab heev thiab yooj yim rau Frost thiab kub tshaj 40 ° C. Tiv thaiv Frost! Lotions uas tau khov tuaj yeem ua tib zoo tshem tawm los ntawm Frost, tab sis yuav tsum tau sim ua ntej siv ntxiv. Muaj zog oscillations los yog muaj zog shearing (xws li siv lub tshuab twj tso kua mis, homogenizer, thiab lwm yam) los yog stirring rau lub sij hawm ntev yuav ua kom puas lub stability ntawm lub emulsion. Ua kom cov viscosity ntawm emulsion los yog ntxiv cov thickener tuaj yeem txhim kho qhov ruaj khov ntawm emulsion.

① tuaj yeem diluted nrog dej huv 1-3 zaug poob rau hauv lub pas dej slurry, lub thawv siab, mesh trough thiab lwm yam npuas; ② Tus nqi ntawm foaming system rau 0.01% -0.2%; ③ cov khoom yuav tsum tau diluted sai li sai tau nyob rau hauv lub sij hawm luv luv.

Nyob rau hauv lub tshuab pulp, lub defoamer feem ntau yog ntxiv rau hauv cov tshuaj dawb thiab ntxuav, thiab feem ntau ntxiv rau hauv lub tshuab ntxhua khaub ncaws, thickener thiab pulp tank. Defoamer nyob rau hauv daim ntawvua ntuyog feem ntau ntxiv rau cov ntawv tshuab ntws lub thawv, pulp pas dej ua ke, txheej thiab sizing xovxwm.

Nws feem ntau raug nqi ntau dua los siv ob lub defoamants dua li siv ntau dua ntawm ib qho defoamant, ntxiv cais ntawm qhov chaw sib nrug. Piv txwv li, ib qho defoamer tau ntxiv rau pem hauv ntej ntawm lub tshuab ntaus thiab lwm qhov ntxiv rau hauv lub thawv ntws.