Hauv kev lag luam ua ntawv pov tseg, lub tshuab cais fiber yog ib qho khoom siv tseem ceeb los ua kom cov ntawv pov tseg zoo thiab xyuas kom meej tias cov pulp zoo. Cov pulp uas kho los ntawm lub tshuab hydraulic pulper tseem muaj cov ntawv me me uas tsis tau tawg. Yog tias cov khoom siv ntaus ib txwm siv los cais cov ntawv pov tseg pulp, tsis yog tsuas yog siv hluav taws xob ntau thiab tus nqi siv khoom siv tsawg, tab sis kuj tseem yuav txo qis lub zog ntawm cov pulp vim yog kev txiav cov fiber dua. Lub tshuab cais fiber tuaj yeem faib cov fiber tag nrho yam tsis txiav lawv, thiab tam sim no tau dhau los ua cov khoom siv cais fiber ntau rau cov ntawv pov tseg.

Kev faib tawm ntawm Fiber Separators

Raws li qhov sib txawv ntawm cov qauv thiab kev ua haujlwm, cov khoom sib cais fiber feem ntau yog muab faib ua ob hom:cov khoom sib cais fiber ntau ib zaug xwbthiabcov khoom sib xyaw ua ke fiber separators.

Ib qho kev sib cais fiber ntau: Cov qauv tsim nyog, Kev ua haujlwm meej

Lub tshuab cais cov fiber ib leeg muaj cov qauv tsim zoo heev (raws li qhia hauv daim duab ua haujlwm ntawm Daim Duab 5-17). Nws txoj cai ua haujlwm yog raws li nram no: cov pulp raug pumped rau hauv qhov kawg me me ntawm lub plhaub conical los ntawm saum toj no raws li kev taw qhia tangential. Thaum lub impeller tig, cov hniav kuj muaj lub luag haujlwm pumping, ua rau cov pulp tsim cov axial circulation thiab muaj zog turbulent circulation. Hauv qhov sib txawv ntawm lub impeller rim thiab riam hauv qab, thiab ntawm lub impeller thiab lub phaj screen, cov pulp raug defibered thiab sib cais ua cov fibers.

• Kev Sib Cais Pulp Zoo: Lub riam sib cais ruaj khov hauv qab ntawm qhov periphery ntawm lub impeller tsis yog tsuas yog txhawb kev sib cais fiber, tab sis kuj tsim kom muaj kev kub ntxhov los txhuam cov qhov screen, thiab cov pulp zoo thaum kawg raug xa tawm ntawm cov qhov screen ntawm sab nraub qaum ntawm lub impeller.
• Kev Tshem Tawm Kev Ua Phem: Cov khoom tsis huv xws li cov yas zaj duab xis tau sib sau ua ke ntawm lub axis vim yog qhov cuam tshuam ntawm eddy tam sim no, thiab raug tso tawm tsis tu ncua los ntawm qhov hluav taws xob hauv nruab nrab ntawm lub hau pem hauv ntej ua ke nrog ib feem me me ntawm cov pulp sib xyaw; cov khoom tsis huv hnyav raug rau lub zog centrifugal thiab nkag mus rau hauv qhov chaw tso tawm slag hauv qab qhov kawg loj-txoj kab uas hla raws txoj kab sib txuas sab hauv phab ntsa kom raug tso tawm.

Hais txog kev tswj kev ua haujlwm, lub sijhawm qhib ntawm lub qhov tso pa tawm ntawm lub teeb tsis huv yuav tsum tau kho raws li cov ntsiab lus ntawm cov khoom tsis huv hauv cov ntawv pov tseg fiber raw. Feem ntau, qhov kev tswj tsis siv neeg tso tawm ib zaug txhua 10-40 vib nas this, txhua zaus rau 2-5 vib nas this; cov khoom tsis huv hnyav raug tso tawm ib zaug txhua 2 teev. Los ntawm kev tswj qhov tso tawm kom raug, nws tuaj yeem cais cov fibers tag nrho thaum tsis rhuav tshem cov khoom tsis huv xws li yas, thiab rov qab kho qhov sib npaug ntawm kev sib cais sai sai, thaum kawg paub txog kev sib cais thiab kev ntxuav ntawm cov fibers.

Nrog nws txoj kev tsim qauv tshwj xeeb thiab lub tshuab ua haujlwm, lub tshuab cais fiber qhia tau tias muaj txiaj ntsig zoo hauv cov txheej txheem tshem cov fiber ntau ntawm daim ntawv pov tseg. Nws tsis tsuas yog daws qhov tsis zoo ntawm cov khoom siv ntaus ib txwm muaj, tab sis kuj ua tiav cov haujlwm ntawm kev faib cov fiber thiab kev sib cais cov khoom tsis huv, tsim lub hauv paus ruaj khov rau kev txhim kho qhov zoo ntawm cov ntawv pov tseg pulp thiab xyuas kom meej tias cov ntawv tsim khoom ua tau zoo. Nws yog ib qho ntawm cov khoom siv tseem ceeb hauv kev ua cov ntawv pov tseg ntawm kev lag luam ntawv niaj hnub.