Hauv cov txheej txheem kev txhim kho ntawm kev lag luam ua ntawv, qhov zoo ntawm daim ntawv yog qhov tseem ceeb uas txiav txim siab qhov zoo ntawm daim ntawv, kev ua haujlwm zoo ntawm kev tsim khoom thiab cov khoom ntxiv tus nqi. Cov tshuab ntawv plaubdrinier ib txwm siv cov dej ntws ib sab thiab tsim los ntawm cov hlau hauv qab, uas tau ntev los ntawm cov teeb meem kev lag luam xws li kev ua ob sab hnyav, kev tsim daim ntawv tsis zoo thiab kev tsim khoom tsawg. Raws li lub cuab yeej hloov kho tshiab rau cov tshuab ntawv plaubdrinier, cov hlau sab saum toj yav dhau los vam khom cov txiaj ntsig ntawm kev siv tshuab ntawm kev tshem dej ntws ob sab thiab kev tsim ob txoj kev. Nws tau dhau los ua qhov tseem ceeb rau cov kab tsim ntawv nruab nrab thiab siab ceev niaj hnub no los ua kom zoo dua qhov zoo ntawm daim ntawv, nce lub peev xwm tsim khoom thiab txo kev siv hluav taws xob, thiab tau siv dav hauv kev tsim cov ntawv qib tseem ceeb suav nrog daim ntawv kab lis kev cai, ntawv ntim khoom thiab ntawv tshwj xeeb.
## 1. Cov Lus Txhais Tseem Ceeb thiab Cov Khoom Siv Ua Ke ntawm Cov Hlau Sab Saum Toj
Cov hlau sab saud, tseem hu ua cov hlau sab saud, thiab nws cov khoom siv txhawb nqa hu ua cov hlau sab saud. Nws yog ib lub tshuab ua hlau polyester annular uas tau teeb tsa saum toj ntawm cov hlau ntawm cov tshuab ntawv plaubdrinier ib txwm muaj, tsim cov qauv hlau ob txheej nrog cov hlau hauv qab ntawm cov khoom siv. Cov khoom siv tag nrho feem ntau yog tsim los ntawm cov yob qhia, cov yob tsim, cov yob nruj, cov yob kho, cov yob rov qab thiab cov khoom siv ntxuav thiab txau. Muaj cov qauv me me thiab muaj zog hloov pauv tau, nws tuaj yeem sib phim thiab kho dua tshiab nrog cov tshuab ntawv plaubdrinier uas twb muaj lawm.
Thaum lub sijhawm tsim khoom thiab ua haujlwm, cov xov hlau sab saud tsis tas yuav tsav lub cev muaj zog ywj pheej thiab ua haujlwm sib dhos los ntawm kev sib txhuam nrog cov xov hlau hauv qab thiab daim ntawv ntub dej, ua kom ntseeg tau tias kev ua haujlwm ruaj khov thiab kev siv hluav taws xob tsawg heev. Cov pulp ua ntej dhau los ua ntej dewatering ntawm cov xov hlau hauv qab los tsim cov ntaub ntub dej thawj zaug, uas tom qab ntawd nkag mus rau hauv thaj chaw clamping zoo li wedge uas tsim los ntawm cov xov hlau sab saud thiab cov xov hlau hauv qab. Clamped ruaj khov los ntawm ob txheej hlau mesh, daim ntawv web ua tiav tom qab dewatering thiab zoo forming, hloov pauv tag nrho cov qauv ib sab forming.
## 2. Lub Hauv Paus Ua Haujlwm Tseem Ceeb ntawm Kev Tsim Cov Hlau Sab Saum Toj
Cov txiaj ntsig tseem ceeb ntawm kev tsim cov hlau sab saud yog **bidirectional symmetrical dewatering thiab flexible uniform forming**. Cov tshuab ntawv plaub-drinier ib txwm tsuas yog lim dej mus rau hauv qab los ntawm cov hlau hauv qab. Cov fibers zoo thiab cov khoom sau hauv cov pulp poob qis nrog cov dej ntws, ua rau muaj qhov chaw hauv qab ntom thiab qhov chaw saum toj kawg nkaus ntawm cov ntawv web thiab qhov sib txawv ntawm cov qauv pom tseeb ntawm ob sab.
Tom qab cov xov hlau sab saud raug muab tso rau hauv kev ua haujlwm, ib txoj kab dej ntws ob sab saud thiab sab qis raug tsim thaum cov ntawv ntub dej nkag mus rau hauv thaj chaw clamping ob txheej: dej tuaj yeem tso tawm mus rau hauv qab los ntawm cov xov hlau hauv qab thiab mus rau saum toj los ntawm cov xov hlau sab saud. Hauv qab qhov kev cuam tshuam me me thiab dej ntws ntawm cov xov hlau ob txheej, cov flocs fiber hauv cov ntawv web raug maj mam tawg, thiab cov fibers uas tsis sib xws tau rov faib ua ke, txhim kho qhov sib npaug ntawm cov khoom sau thiab cov fibers zoo. Lub caij no, kev tswj hwm siab ntawm thaj chaw clamping zam kev sib tsoo web thiab daim ntawv tawg los ntawm kev nias sai sai ntawm daim ntawv ntub dej, ua kom pom cov ntawv zoo thiab ruaj khov.
## 3. Cov txiaj ntsig tseem ceeb ntawm Top Wire hauv kev tsim ntawv
### 3.1 Tshem Tawm Daim Ntawv Ob Sab Thiab Txhim Kho Qhov Zoo Ntawm Daim Ntawv
Qhov ob sab yog qhov tsis zoo ntawm kev ua ntawv plaub sab ib txwm muaj, uas qhia tau tias muaj qhov sib txawv ntawm qhov du, qhov porosity, kev luam tawm thiab xim sib xws ntawm sab pem hauv ntej thiab sab nraub qaum ntawm daim ntawv, uas cuam tshuam loj heev rau kev siv cov ntawv qib siab. Los ntawm kev rho dej ob sab sib npaug, cov xov hlau sab saud sib npaug qhov sib npaug ntawm cov fiber thiab cov qauv qhov pore ntawm ob sab ntawm daim ntawv web thiab txo qhov sib txawv ntawm kev ua tau zoo ntawm ob sab. Daim ntawv zoo tshaj plaws muaj qhov chaw mos thiab sib xws nrog kev txhim kho zoo dua ntawm kev nplaum thiab kev luam ntawv overprint raug, ua rau nws yog qhov tseem ceeb rau kev tsim cov ntawv kab lis kev cai qib siab xws li ntawv offset, ntawv coated base, ntawv theej thiab ntawv ruaj ntseg.
### 3.2 Kev Txhim Kho Cov Ntawv Tsim thiab Tshem Tawm Cov Qhov Tsis Zoo Ntawm Qhov Chaw
Thaum lub sijhawm ua cov pulp, cov ntawv flocs, cov cim huab, cov qhov pinholes thiab lwm yam tsis zoo li qub, cov fiber flocculation feem ntau tshwm sim uas ua rau cov ntawv tsis zoo. Lub zog shear me me uas tsim thaum lub sijhawm ua haujlwm ntawm thaj chaw clamping hlau sab saud tuaj yeem ua rau cov pulp flocs tawg tau zoo, ua rau cov fibers thiab cov fillers faib tau zoo dua, txhim kho cov ntawv tag nrho, txo cov qhov tsis zoo ntawm daim ntawv, thiab txhim kho cov ntawv zoo li qub thiab cov khoom tiav.
### 3.3 Txhim Kho Lub Peev Xwm Dewatering thiab Ua Kom Muaj Peev Xwm Ntau Lawm
Cov xov hlau sab saud tuaj yeem dais tau 30% ~ 40% ntawm tag nrho cov peev xwm dewatering ntawm ntu xov hlau, sib koom ua haujlwm ntawm lub thawv nqus tsev hauv qab thiab txhim kho qhov kev ua haujlwm dewatering ntawm ntu xov hlau. Nyob rau hauv tib qho xwm txheej tsim khoom, qhov qhuav ntawm cov ntawv ntub tawm ntawm cov xov hlau tau nce ntxiv rau cov tshuab ntawv uas muaj cov xov hlau sab saud, rhuav tshem tag nrho cov kev txwv ntawm cov peev xwm dewatering tsis txaus thiab kev ua haujlwm ceev ceev ntawm cov tshuab ntawv plaub-drinier ib txwm muaj. Qhov ceev ntawm lub tshuab ntawv tuaj yeem nce ntxiv los ntawm 20% ~ 50%, txhim kho qhov peev xwm tsim khoom ntawm cov kab ntau lawm. Tsis tas li ntawd, kev ua kom dej ua ntej ua haujlwm zoo ua rau lub rooj xov hlau luv dua thiab txuag cov nqi peev rau kev tsim kho cog thiab khoom siv.
### 3.4 Txo Kev Siv Zog Rau Kev Tsim Khoom Thiab Ua Kom Cov Khoom Siv Siv Tau Ntev Dua
Txoj kev rho dej ob txoj kev ntawm cov xov hlau sab saud txo lub sijhawm ua haujlwm thiab lub nra ntawm kev nqus cua siab ntawm cov xov hlau hauv qab, ua rau txo qis kev siv hluav taws xob ntawm cov twj tso kua mis thiab txuag hluav taws xob ntau lawm. Lub caij no, cov xov hlau hauv qab tsis dais tag nrho cov kev cuam tshuam ntawm cov pulp thiab kev sib txhuam siab tsis zoo xwb, ua rau txo qhov hnav, lub neej ua haujlwm ntev dua, thiab tsawg dua lub sijhawm hloov cov xov hlau thiab cov nqi siv khoom siv thiab kev txij nkawm. Tsis tas li ntawd, lub kaw lus ncig dej dawb zoo tshaj plaws txhim kho qhov rov siv cov pulp, txo cov dej phwj ntau lawm, thiab ua tiav kev txuag hluav taws xob, txo kev siv hluav taws xob thiab kev tsim khoom ntsuab.
## 4. Cov Hom Tseem Ceeb thiab Cov Xwm Txheej Siv ntawm Cov Hlau Sab Saum Toj
Raws li qhov hnyav ntawm daim ntawv, cov txheej txheem xav tau thiab qhov ceev ntawm kev tsim khoom, cov xov hlau sab saum toj feem ntau muab faib ua peb pawg raws li cov xwm txheej sib txawv ntawm kev tsim khoom:
### 4.1 Hlau Sab Saum Toj Hom Yob
Raws li tus qauv tseem ceeb hauv kev ua lag luam, nws tsim ib qho chaw clamping arc pressurized los ntawm kev tsim cov yob kom paub txog kev dewatering nce qib. Nrog lub siab ruaj khov, kev hloov kho yooj yim thiab kev ua haujlwm siab, nws yog qhov tsim nyog rau cov kab ntau lawm nruab nrab thiab siab ceev nrog qhov ceev ntawm 250-1000m / min, thiab dav siv hauv kev tsim cov ntawv lag luam feem ntau xws li ntawv offset, ntawv thawv ntawv thiab ntawv corrugated.
### 4.2 Hlau Sab Saum Toj Hom Scraper
Nws hloov cov yob ua ib txwm siv cov phaj arc dej khawb, uas muaj qhov siab ntawm thaj chaw clamping mos dua thiab cov txheej txheem dewatering maj mam. Nws tuaj yeem tiv thaiv kev puas tsuaj los ntawm kev nias thiab kev tawg ntawm cov ntawv nyias nyias, thiab feem ntau siv rau kev tsim cov ntawv sib dua xws li ntawv so quav thiab ntawv nyias.
### 4.3 Cov Hlau Sab Saum Toj Ua Ke
Nws siv cov hlau scraper thiab cov hlau dov los ua ke, thiab siv cov hlau scraper los ntxuav dej ua ntej thiab cov hlau dov los ntxuav dej tom qab. Nws muaj kev ywj pheej thiab ua haujlwm tau zoo, thiab nws tuaj yeem hloov kho rau ntau hom ntawv uas muaj qhov hnyav siab thiab qis, thiab yog qhov chaw zoo tshaj plaws rau cov lag luam loj ua ntawv.
## 5. Tus nqi ntawm daim ntawv thov kev lag luam thiab kev loj hlob ntawm cov xov hlau sab saum toj
Kev lag luam ua ntawv tam sim no tab tom txhim kho mus rau **kev ceev ceev, qib siab, txuag hluav taws xob thiab kev ua kom zoo dua**. Cov txheej txheem tsim ib sab dav dav tsis tuaj yeem ua tau raws li qhov xav tau ntawm cov khoom ntawv siab. Los ntawm kev ua kom zoo dua qub, cov thev naus laus zis tsim cov hlau sab saum toj daws cov teeb meem tseem ceeb ntawm kev ua ntawv plaubdrinier los ntawm qhov chaw. Nws tsis tsuas yog tuaj yeem txhim kho qhov zoo ntawm ntawv thiab kev ua haujlwm ntau lawm, tab sis kuj tseem txo qis kev siv zog ntau lawm thiab kev ua haujlwm thiab kev saib xyuas, xa cov txiaj ntsig kev lag luam thiab ib puag ncig.
Rau cov ntawv qib siab uas muaj nqis ntxiv xws li cov ntawv kab lis kev cai qib siab thiab cov ntawv ntim khoom zoo, cov hlau sab saum toj yog cov txheej txheem tseem ceeb los xyuas kom meej tias cov khoom lag luam sib tw; rau cov ntawv lag luam ib txwm muaj, kev kho dua tshiab ntawm cov hlau sab saum toj yog qhov kev hloov pauv zoo tshaj plaws rau kev txhim kho zoo thiab kev tsim khoom nce ntxiv nrog kev txo nqi. Yav tom ntej, nrog rau kev txhim kho ntse thiab meej ntawm cov khoom siv ua ntawv, lub kaw lus tsim cov hlau sab saum toj yuav hloov mus rau kev kho siab siab, kev ntxuav tsis siv neeg thiab kev tswj hwm kev ntxhov siab ntse, ntxiv kev hloov kho rau cov kev xav tau ntawm kev tsim cov ntawv ceev ceev thiab zoo niaj hnub, thiab dhau los ua cov thev naus laus zis tseem ceeb hauv kev lag luam ua ntawv.
Lub sijhawm tshaj tawm: Lub Xya Hli-07-2026