Hauv cov txheej txheem rov ua dua tshiab ntawm cov ntawv pov tseg ntawm kev lag luam ntawv, lub hydrapulper yog qhov tsis muaj qhov tsis ntseeg cov khoom siv tseem ceeb. Nws ua txoj haujlwm tseem ceeb ntawm kev rhuav cov ntawv pov tseg, cov laug cam pulp thiab lwm yam khoom siv raw rau hauv pulp, tso lub hauv paus rau cov txheej txheem ua ntawv tom ntej.
1. Kev faib tawm thiab cov qauv tsim
(1) Kev faib tawm los ntawm kev sib sau ua ke
- Cov hydrapulper uas tsis sib xws: Feem ntau qhov kev ua haujlwm sib xws yog qis, thiab nws cov qauv yog tsim los ntawm cov khoom xws li rotors, troughs, riam hauv qab, thiab cov phaj tshuaj ntsuam. Muaj cov hom rotors xws li tus qauv Voith rotors thiab lub zog txuag Voith rotors. Hom txuag hluav taws xob tuaj yeem txuag tau 20% txog 30% zog piv rau hom tus qauv, thiab cov hniav tsim zoo dua rau kev ncig ntawm cov pulp. Lub trough feem ntau yog cylindrical, thiab qee qhov siv cov troughs D-puab tshiab. Lub trough D-puab ua rau cov pulp ntws turbulent, qhov sib xws ntawm pulping tuaj yeem ncav cuag 4% txog 6%, lub peev xwm tsim khoom ntau dua 30% siab dua li ntawm hom trough voj voog, thiab nws muaj thaj chaw me me, qis zog thiab cov nqi peev. Riam hauv qab feem ntau yog detachable, ua los ntawm cov hlau muaj zog siab, thiab ntug hniav yog lined nrog cov khoom siv tiv taus hnav xws li NiCr hlau. Lub txoj kab uas hla ntawm qhov screen ntawm lub phaj tshuaj ntsuam yog me me, feem ntau 10-14 hli. Yog tias nws siv rau kev rhuav tshem cov ntawv pulp lag luam, cov qhov screen me dua, xws li 8-12 hli, uas ua lub luag haujlwm hauv kev sib cais cov khoom tsis huv loj.
- Cov hydrapulper siab sib xws: Qhov ua haujlwm sib xws yog 10% - 15% lossis siab dua. Piv txwv li, lub rotor siab sib xws tuaj yeem ua rau lub pulp tawg sib xws siab txog 18%. Muaj turbine rotors, high-consistency rotors, thiab lwm yam. Lub turbine rotor tuaj yeem ncav cuag lub pulp tawg sib xws ntawm 10%. Lub rotor siab sib xws nce thaj chaw sib cuag nrog lub pulp thiab paub txog kev tawg los ntawm kev siv kev txiav ntawm cov fibers. Lub trough qauv zoo ib yam li qhov ntawm qhov tsis sib xws, thiab D-puab trough kuj maj mam txais yuav, thiab hom ua haujlwm feem ntau yog intermittent. Lub txoj kab uas hla ntawm lub vijtsam qhov ntawm lub vijtsam phaj yog loj dua, feem ntau 12-18 hli, thiab thaj chaw qhib yog 1.8-2 npaug ntawm qhov zoo pulp qhov hluav taws xob seem.
(2) Kev faib tawm los ntawm Cov Qauv thiab Hom Ua Haujlwm
- Raws li cov qauv, nws muaj peev xwm muab faib ua kab rov tav thiab ntsug; raws li hom kev ua haujlwm, nws muaj peev xwm muab faib ua hom txuas ntxiv thiab sib nrug. Lub tshuab hydrapulper ntsug txuas ntxiv tuaj yeem tshem tawm cov khoom tsis huv tas li, nrog kev siv cov khoom siv siab, muaj peev xwm tsim khoom loj thiab kev nqis peev tsawg; lub tshuab hydrapulper ntsug sib nrug muaj qib tawg ruaj khov, tab sis muaj kev siv zog ntau thiab nws lub peev xwm tsim khoom raug cuam tshuam los ntawm lub sijhawm tsis tawg; lub tshuab hydrapulper kab rov tav muaj kev sib cuag tsawg dua nrog cov khoom tsis huv hnyav thiab hnav tsawg dua, tab sis nws lub peev xwm ua haujlwm feem ntau me me.
2. Txoj Cai Ua Haujlwm thiab Kev Ua Haujlwm
Lub hydrapulper tsav lub pulp los tsim kom muaj zog turbulence thiab lub zog shearing los ntawm kev tig ceev ceev ntawm lub rotor, yog li cov khoom siv raw xws li daim ntawv pov tseg raug rhuav thiab tawg mus rau hauv pulp. Tib lub sijhawm, nrog kev pab los ntawm cov khoom xws li cov phaj tshuaj ntsuam thiab cov khoom siv 绞绳 (hlua reels), thawj zaug sib cais ntawm pulp thiab impurities tau paub, tsim cov xwm txheej rau kev ntxuav thiab kev tshuaj ntsuam tom qab. Lub pulper qis-sib xws tsom mus rau kev tawg tshuab thiab thawj zaug tshem tawm impurities, thaum lub pulper siab-sib xws ua tiav kev tawg zoo hauv qab kev sib xws siab los ntawm kev sib xyaw hydraulic muaj zog thiab kev sib txhuam ntawm cov fibers. Nws yog tshwj xeeb tshaj yog rau cov kab ntau lawm uas xav tau deinking, uas tuaj yeem ua rau cov kua yooj yim cais los ntawm cov fibers, thiab muaj kev tshem tawm zoo dua ntawm cov tshuaj kub-yaj dua li cov pulpers qis-sib xws.
3. Daim Ntawv Thov thiab Qhov Tseem Ceeb
Cov Hydrapulpers siv dav hauv cov kab ntau lawm pulping ntawv pov tseg thiab yog cov khoom siv tseem ceeb rau kev siv cov khoom siv ntawv pov tseg. Lawv txoj haujlwm ua haujlwm zoo tsis tsuas yog txhim kho tus nqi siv ntawv pov tseg, txo tus nqi ntawm cov ntaub ntawv raw ua ntawv, tab sis kuj txo qhov kev vam khom rau ntoo nyoos, uas yog nyob rau hauv kab nrog kev txhim kho ntawm kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig. Ntau hom hydrapulpers tuaj yeem xaiv tau yooj yim raws li qhov xav tau ntau lawm. Piv txwv li, hom ntsug txuas ntxiv tuaj yeem xaiv rau kev ua cov ntawv pov tseg nrog ntau yam tsis huv, thiab hom siab sib xws tuaj yeem xaiv rau qhov xav tau kev sib xws siab thiab deinking nyhuv, yog li ua si qhov kev ua tau zoo tshaj plaws hauv ntau qhov xwm txheej ntau lawm thiab txhawb kev txhim kho ruaj khov ntawm kev lag luam ntawv.
Lub sijhawm tshaj tawm: Cuaj hlis-17-2025