●Bamboo pulp papermaking txheej txheem
Txij li thaum muaj kev vam meej kev lag luam thiab kev siv xyoob, ntau cov txheej txheem tshiab, thev naus laus zis thiab cov khoom siv rau kev ua xyoob tau tshwm sim ib qho tom qab, uas tau txhim kho kev siv tus nqi ntawm xyoob. Txoj kev loj hlob ntawm Tuam Tshoj lub tshuab pulping tshuab tau tawg los ntawm cov txheej txheem phau ntawv ib txwm muaj thiab hloov mus rau cov qauv kev lag luam thiab kev tsim khoom lag luam. Tam sim no nrov xyoob pulp ntau lawm txheej txheem yog txhua yam, tshuaj thiab chemical mechanical. Tuam Tshoj xyoob pulp feem ntau yog tshuaj, suav txog li 70%; chemical mechanical yog tsawg, tsawg dua 30%; kev siv cov cuab yeej siv tshuab los tsim cov xyoob pulp yog txwv rau theem kev sim, thiab tsis muaj daim ntawv tshaj tawm kev lag luam loj.
1.Mechanical pulping txoj kev
Txoj kev siv tshuab pulping yog kev zom xyoob rau hauv fibers los ntawm kev siv tshuab tsis muaj tshuaj lom neeg ntxiv. Nws muaj qhov zoo ntawm cov pa phem, siab pulping tus nqi thiab cov txheej txheem yooj yim. Raws li qhov xwm txheej ntawm kev tswj hwm kev ua qias tuaj zuj zus thiab tsis txaus ntawm cov khoom siv ntoo hauv lub tebchaws, cov neeg kho tshuab xyoob ntoo tau maj mam muaj nuj nqis los ntawm tib neeg.
Txawm hais tias txhua yam pulping muaj qhov zoo ntawm qhov siab pulping tus nqi thiab tsis muaj kuab paug, nws yog dav siv nyob rau hauv pulping thiab papermaking kev lag luam 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 nyob rau hauv cov tshuaj muaj pes tsawg leeg ntawm xyoob, lub pulp zoo tsis zoo thiab nws yog ib qho nyuaj rau ua tau raws li qhov yuav tsum tau ntawm daim ntawv coj mus muag. Daim ntawv thov kev lag luam tsis tshua muaj thiab feem ntau yog nyob rau theem ntawm kev tshawb fawb thiab kev tshawb fawb.
2.Chemical pulping txoj kev
Cov tshuaj pulping txoj kev siv xyoob ua raw khoom thiab siv txoj kev sulfate los yog sulfite txoj kev los ua xyoob pulp. Xyoob raw cov ntaub ntawv raug tshuaj xyuas, ntxuav, lub cev qhuav dej, siav, causticized, lim, countercurrent ntxuav, kaw kev tshuaj ntsuam, oxygen deignification, bleaching thiab lwm yam txheej txheem los ua xyoob pulp. Cov tshuaj pulping txoj kev tuaj yeem tiv thaiv cov fiber ntau thiab txhim kho tus nqi pulping. Cov pulp tau txais yog cov khoom zoo, huv si thiab mos, yooj yim rau bleach, thiab tuaj yeem siv los tsim cov ntawv sau qib siab thiab luam ntawv.
Vim tias qhov kev tshem tawm ntau ntawm lignin, tshauv thiab ntau yam extracts nyob rau hauv cov txheej txheem pulping ntawm cov tshuaj pulping txoj kev, lub pulping tus nqi ntawm xyoob pulping yog tsawg, feem ntau 45% ~ 55%.
3.Chemical Mechanical Pulping
Chemical Mechanical Pulping yog ib txoj kev pulping uas siv xyoob ua raw khoom thiab ua ke qee yam ntawm cov tshuaj pulping thiab mechanical pulping. Chemical Mechanical Pulping muaj xws li cov txheej txheem semi-tshuaj, chemical mechanical method thiab chemical thermomechanical method.
Rau xyoob pulping thiab papermaking, pulping tus nqi ntawm cov tshuaj mechanical pulping yog siab dua li cov tshuaj pulping, uas feem ntau muaj peev xwm ncav cuag 72% ~ 75%; Qhov zoo ntawm cov ntaub so ntswg uas tau los ntawm cov tshuaj mechanical pulping yog ntau dua li cov neeg kho tshuab pulping, uas tuaj yeem ua tau raws li cov kev cai dav dav ntawm cov khoom siv ntawv. Nyob rau tib lub sijhawm, tus nqi ntawm alkali rov qab thiab kev kho dej phwj kuj tseem nyob nruab nrab ntawm cov tshuaj pulping thiab mechanical pulping.
▲ Xyoob Pulping Ntau Lawm Kab
●Bamboo Pulp Papermaking Equipment
Cov khoom siv ntawm txoj kev tsim ntawm xyoob pulp papermaking ntau lawm kab yog qhov tseem ceeb tib yam li ntawm cov ntoo pulp ntau lawm kab. Qhov sib txawv loj tshaj plaws ntawm xyoob pulp papermaking khoom nyob rau hauv cov khoom npaj xws li slicing, ntxuav thiab ua noj.
Vim tias xyoob muaj cov qauv hollow, cov khoom siv slicing txawv ntawm cov ntoo. Feem ntau siv xyoob slicing (flaking) cov khoom siv feem ntau suav nrog cov menyuam xyoob txiav, disc xyoob cutter thiab nruas chipper. Cov menyuam xyoob cutters thiab disc xyoob cutters muaj kev ua haujlwm siab, tab sis qhov ua tau zoo ntawm xyoob chips ( xyoob daim duab ) tsis zoo li cov nruas chippers. Cov neeg siv tuaj yeem xaiv cov khoom tsim nyog slicing (flaking) raws li lub hom phiaj ntawm xyoob pulp thiab cov nqi tsim khoom. Rau cov nroj tsuag me me thiab nruab nrab ntawm xyoob ntoo (tso tawm <100,000 t / a), cov khoom siv xyoob slicing yog txaus kom tau raws li cov kev xav tau ntau lawm; rau cov nroj tsuag loj xyoob ntoo (tso tawm ≥100,000 t / a), cov khoom siv thoob ntiaj teb qib siab loj slicing (flaking) tuaj yeem xaiv.
Xyoob ntxuav cov cuab yeej siv los tshem tawm cov impurities, thiab ntau cov khoom lag luam patented tau tshaj tawm hauv Suav teb. Feem ntau, lub tshuab nqus tsev ntxhua khaub ncaws, lub tshuab nqus tsev ntxhua khaub ncaws thiab siv lub tshuab ntxhua khaub ncaws. Cov lag luam nruab nrab thiab loj tuaj yeem siv cov tshuab hloov tshiab ob npaug rau cov ntawv xovxwm cov tshuab ntxhua khaub ncaws lossis cov tshuab ntxhua khaub ncaws uas muaj zog dewatering.
Xyoob chip ua noj khoom siv yog siv rau xyoob chip softening thiab tshuaj sib cais. Cov lag luam me thiab nruab nrab siv cov lauj kaub ua noj ntsug lossis kab rov tav lub raj txuas txuas ntxiv. Cov tuam txhab loj tuaj yeem siv Camille txuas txuas txuas nrog kev ntxuav kom huv los txhim kho kev tsim khoom, thiab cov khoom siv pulp kuj yuav nce ntxiv, tab sis nws yuav nce tus nqi peev ib zaug.
1.Bamboo pulp papermaking muaj peev xwm zoo
Raws li kev soj ntsuam ntawm Tuam Tshoj cov khoom siv xyoob thiab kev tsom xam ntawm qhov tsim nyog ntawm xyoob nws tus kheej rau papermaking, vigorously tsim lub xyoob pulping kev lag luam tsis tau tsuas yog alleviate cov teeb meem ntawm nruj ntoo raw cov ntaub ntawv nyob rau hauv Tuam Tshoj txoj kev lag luam ntawv, tab sis kuj yog ib tug zoo txoj kev los hloov. cov khoom siv raw khoom ntawm kev lag luam papermaking thiab txo kev vam khom ntawm cov khoom ntoo tuaj. Qee cov kws tshawb fawb tau txheeb xyuas tias cov nqi ntawm xyoob pulp ib chav tsev yog kwv yees li 30% qis dua cov ntoo thuv, spruce, eucalyptus, thiab lwm yam, thiab qhov zoo ntawm xyoob pulp yog sib npaug rau cov ntoo pulp.
2.Forest-paper kev koom ua ke yog ib qho tseem ceeb ntawm txoj kev loj hlob
Vim tias qhov zoo ntawm xyoob loj hlob sai thiab rov tsim dua tshiab, ntxiv dag zog rau kev cog qoob loo ntawm cov xyoob ntoo tshwj xeeb hauv hav zoov thiab tsim kom muaj lub hauv paus tsim cov xyoob ntoo uas ua ke nrog hav zoov thiab ntawv yuav dhau los ua ib qho kev taw qhia rau kev txhim kho kev lag luam ntawm Tuam Tshoj lub pulp thiab papermaking kev lag luam, txo. dependence rau imported ntoo chips thiab pulp, thiab tsim lub teb chaws industries.
3.Cluster xyoob pulping muaj peev xwm loj hlob
Hauv kev lag luam xyoob tam sim no, ntau dua 90% ntawm cov khoom siv raw yog ua los ntawm moso xyoob (Phoebe nanmu), uas yog siv los tsim cov khoom siv hauv tsev thiab cov khoom siv. Bamboo pulp papermaking kuj tseem siv moso xyoob (Phoebe nanmu) thiab cycad xyoob ua cov ntaub ntawv raw, uas tsim cov khoom sib tw raw khoom thiab tsis tsim nyog rau txoj kev loj hlob ntawm kev lag luam. Raws li cov hom xyoob nyoos uas twb muaj lawm, kev lag luam xyoob pulp papermaking yuav tsum muaj zog tsim ntau hom xyoob rau kev siv cov khoom siv raw, ua kom tag nrho cov nqi qis qis, xyoob ntoo loj, phoenix tail xyoob, dendrocalamus latiflorus thiab lwm yam clumping xyoob rau pulping thiab papermaking, thiab txhim kho kev lag luam kev sib tw.
▲ Clustered xyoob tuaj yeem siv los ua cov ntaub ntawv tseem ceeb
Post lub sij hawm: Sep-04-2024
