● xyoob Prictric papermaking txheej txheem
Txij li thaum cov txheej txheem kev tsim kho tau zoo thiab siv ntau cov txheej txheem, thev naus laus zis tshiab tau tshwm sim ib qho ntxiv, uas tau txhim kho cov txiaj ntsig ntawm xyoob. Kev txhim kho ntawm Tuam Tshoj lub tshuab hluav taws xob tau tawg los ntawm cov qauv tso cai thiab yog kev hloov pauv mus rau kev lag luam thiab kev lag luam tsim qauv. Bambo nrov tam sim no nrov nrov yog cov txheej txheem yog cov tshuab, tshuaj lom neeg thiab tshuaj kho tshuab. Tuam Tshoj txoj kab xyoob hlua khi feem ntau yog tshuaj lom neeg, cov nyiaj txiag rau kwv yees li 70%; tshuaj kho neeg siv neeg kho tshuab yog tsawg dua, tsawg dua 30%; Kev siv cov txheej txheem ntawm cov tshuab tsim cov xyoob ntoo yog txwv rau theem sim, thiab tsis muaj daim ntawv qhia muaj kev lag luam loj.
1.Txhua lub pulping txoj kev
Cov neeg kho tshuab pulping txoj kev yog los zom xyoob rau hauv cov kab ke los ntawm cov qauv tshuab yam tsis muaj cov tshuaj tua neeg. Nws muaj qhov zoo ntawm cov pa phem tsis muaj kuab paug, siab pulping thiab yooj yim txheej txheem. Raws li qhov xwm txheej ntawm kev tswj hwm cov txiaj ntsig nruj me nyuam thiab tsis txaus ntawm cov ntoo hluav taws xob hauv lub teb chaws, pob xyoob ua haujlwm tau raug nqi rau tib neeg.
Txawm hais tias lub sam thiaj muaj qhov zoo ntawm lub siab pulping tus nqi thiab tsis muaj kuab lom, nws yog qhov tsis muaj kuab paug ntawm coniferous cov ntaub ntawv xws li spruce. Txawm li cas los xij, vim muaj cov ntsiab lus siab ntawm lignin, tshauv, thiab 1% naoh extract hauv cov tshuaj lom neeg muaj pes tsawg leeg yog qhov tsis yooj yim kom tau raws li cov ntawv lag luam zoo. Daim ntawv thov muaj tsawg thiab feem ntau yog nyob rau hauv theem ntawm kev tshawb fawb tshawb fawb thiab kev tshawb nrhiav.
2.Chemical pulping txoj kev
Cov tshuaj lom neeg siv xyoob ua xyoob ua cov khoom siv raw thiab siv cov txheej txheem sulfate lossis cov qauv sulfite ua xyoob ntshav. Cov ntaub ntawv xyoob raw yog tshuaj ntsuam, ntxuav, ua kom siav, ua kom muaj pa, tshuaj pleev cov pa tawm thiab lwm yam kev ua xyoob rau. Cov txheej txheem tshuaj lom neeg yuav tiv thaiv cov fiber ntau thiab txhim kho lub pulping tus nqi. Cov tau txais cov pulp yog qhov zoo thiab muag muag, yooj yim rau tshuaj dawb, thiab tuaj yeem siv los tsim cov ntawv sau qib thiab luam ntawv.
Vim tias qhov kev tshem tawm ntawm tus nqi loj, cov hmoov tshauv thiab ntau yam kev rho tawm ntawm cov hlua khi ntawm xyoob, feem ntau 45% ~ 55%.
3. Demical Neeg Kho Tshuab Pulping
Kev Siv Tshuaj Kho Mob Siv Neeg Kho Mob yog lub xyoob tsheb uas siv xyoob ua cov khoom siv ntawm cov khoom siv tshuaj lom neeg thiab txhua yam tshuaj tua kab. Tshuaj kho cov tshuaj kho tshuab pulping suav nrog cov qauv tshuaj semi-tshuaj lom, tshuaj kho tshuab siv thiab cov tshuaj lom neeg thermomechanical.
Rau xyoob papping thiab papermaking, lub pulping tus nqi tshuaj kho tshuab pulping yog siab dua li ntawm tshuaj mem tes, uas tuaj yeem ncav 72% ~ 75%; Qhov zoo ntawm cov paj hlwb tau txais los ntawm cov tshuaj kho tshuab tes pulping yog ntau dua li cov neeg kho tshuab cov kev xav tau ntawm cov ntawv luam tawm. Nyob rau tib lub sijhawm, tus nqi rov qab los ntawm alkali rov qab thiab cov dej phwj tuaj kuj yog ntawm cov tshuaj mem tes thiab kho txhua yam pulping.
Bamboo pulping kab ntau lawm
● xyoob Pulp papermaking khoom
Cov cuab yeej ntawm cov ntu tsim ntawm xyoob sis cov kab ntau lawm yog qhov zoo ib yam li ntawm cov ntoo pulp ntau lawm. Qhov loj tshaj qhov sib txawv ntawm xyoob cov cuab yeej siv rau hauv cov ntu kev npaj xws li kev ua tiav, ntxuav thiab ua noj.
Vim tias xyoob muaj tus qauv hollow, cov khoom hlais yog txawv ntawm cov ntoo. Cov khoom siv xyoob ntoo uas siv tau (flaking) cov khoom siv tsuas yog suav nrog cov menyuam xyoob cutter, disc xyoob cutter, Disc xyoob cutter thiab nruas chiller. Cov Menyuam Cutters xyoob thiab Disc Xyoob Cutters muaj cov txiaj ntsig kev ua haujlwm siab, tab sis qhov zoo ntawm cov txheej txheem xyoob ntoo (xyoob nti cov duab) tsis zoo li ntawm cov chapers. Cov neeg siv tuaj yeem xaiv cov hlais tsim nyog (flaking) cov khoom raws li lub hom phiaj ntawm xyoob plawv thiab tus nqi tsim khoom. Rau cov xyoob me thiab nruab nrab me me-ci (tso zis <100,000 t / a), tsev xyoob slicing cov khoom siv tau txaus kom tau raws li cov kev xav tau ntau lawm; Rau xyoob loj pulp nroj tsuag (tawm ≥100,000 t / a), thoob ntiaj teb advanced slicing (flaking) khoom siv tau xaiv.
Xyoob nti ntxuav cov khoom siv yog siv los tshem tawm impurities, thiab muaj ntau cov khoom patented tau qhia hauv Suav teb. Feem ntau, lub tshuab nqus plua plav kom huv, cov tshuaj ntsuam xyuas cov siab thiab siv cov hlua Pulp CARFP. Nruab nrab thiab cov lag luam loj tuaj yeem siv cov khoom siv tshiab ob-xovxwm Pulp ntxuav lossis muaj zog dewatering turpatering pulp wasters.
Xyoob nti noj khoom noj tau siv rau xyoob nti soquening thiab tshuaj sib cais. Cov khoom lag luam me me thiab nruab nrab uas siv cov khoom noj ntsug ntsug lossis kab rov tav tub kab rov tav. Kev lag luam loj tuaj yeem siv camille nruam cookers nrog diffusion ntxuav los txhim kho kom txhim kho, tab sis nws yuav ua rau ib qho kev nqis peev ib zaug.
1.qamboo pulp papermaking muaj peev xwm loj
Raws li kev soj ntsuam ntawm Tuam Tshoj cov xyoob thiab kev soj ntsuam ntawm kev ua haujlwm ntawm xyoob ntoo kev lag luam hauv Suav teb kev lag luam, tab sis kuj yog ib txoj hauv kev zoo los hloov Tus qauv khoom siv nyoos ntawm cov kev lag luam papermaking thiab txo qis kev vam khom ntawm cov ntoo ua txawv. Qee tus kws tshawb fawb tau txheeb xyuas tias chav tsev them tus nqi xyoob yog li 30% qis dua ntawm cov ntoo thuv, thiab lwm yam, thiab qhov zoo ntawm xyoob ntoo yog sib npaug ntawm cov ntoo pulp.
2. 2. Cov ntawv sib xyaw ua ke yog ib qho kev txhim kho tseem ceeb
Vim yog cov kev loj hlob sai thiab ua kom muaj zog ntawm xyoob, tsim kho cov khoom lag luam tshwj xeeb ntawm Tuam Tshoj ntawm cov khoom lag luam nrawm nrawm Cia siab rau ntawm cov ntoo uas muaj hlau thiab pulp, thiab tsim kev lag luam hauv tebchaws.
3.Cluster xyoob pulping muaj peev xwm loj hlob
Hauv kev ua xyoob ua tam sim no, ntau dua 90% ntawm cov khoom siv ntawm Moso (Phoebe Nanmu), uas yog feem ntau siv los tsim cov khoom hauv tsev thiab cov khoom txheem. Xyoobur pitermaking kuj tsuas yog siv Moso xyoob (Phoebe Nanmu) thiab tsis muaj txiaj ntsig cov khoom nyoos, uas tsis muaj peev xwm ua rau kev lag luam kom ruaj khov ntawm kev lag luam. Ntawm lub hauv paus ntawm cov hom xyoob ntoo uas twb muaj lawm, cov xyoob ntoo papermaking yuav tsum tau siv ntau hom xyoob, Phoenix Tail xyoob, Dendrocalamus latinallamus latiflorus thiab Lwm cov xyoob rau pulping thiab papermaking, thiab txhim kho kev sib tw ua lag luam.
Clustered xyoob tuaj yeem siv ua ib qho tseem ceeb pulp cov khoom
Lub Sijhawm Post: Sep-04-2024
