Lub tshuab uas rov siv dua ntawv yog dab tsi?
Nyob rau niaj hnub no lub ntiaj teb ib puag ncig kev nco qab, qhov tseem ceeb ntawm kev rov ua dua tshiab tsis tuaj yeem overstated. Kev rov ua dua tshiab yuav pab txo qis kev ntxhov siab ntawm cov peev txheej ntuj thiab txo qis cov khoom pov tseg uas xaus rau hauv qhov chaw pov tseg. Ib qho ntawm cov khoom siv rov ua dua tshiab tshaj plaws yog ntawv, uas yog vim li cas cov ntawv rov ua dua tshiab ua lub luag haujlwm tseem ceeb hauv kev coj ua pov tseg kom ruaj khov. Tab sis koj puas tau xav paub txog lub tshuab uas rov siv dua ntawv? Nws ua haujlwm li cas? Nws cov khoom yog dab tsi? Nyob rau hauv tsab xov xwm no, peb yuav delve rau hauv lub ntiaj teb fascinating ntawm daim ntawv recycling tshuab.
Kev Taw Qhia luv luv rau Daim Ntawv Rov Siv Dua
Ua ntej peb delve rau hauv intricacies ntawm daim ntawv recycling tshuab, cia peb rov qab sai sai cov txheej txheem ntawm daim ntawv. Daim ntawv rov ua dua tshiab tuaj yeem muab faib ua plaub theem tseem ceeb: sau, txheeb, pulping, thiab papermaking.
Lub sijhawm sau ntawv suav nrog kev sau cov ntawv siv los ntawm ntau qhov chaw xws li chaw ua haujlwm, tsev kawm ntawv, thiab tsev neeg. Thaum sau tau, daim ntawv raug thauj mus rau qhov chaw rov ua dua uas nws tau txheeb xyuas. Kev txheeb xyuas suav nrog kev sib cais cov ntawv sib txawv (xws li ntawv xov xwm, ntawv xov xwm, duab los qhia) thiab tshem tawm cov kab mob xws li staples thiab daim kab xev.
Cov theem tom ntej, pulping, yog qhov ua khawv koob tshwm sim. Daim ntawv sorted yog tov nrog dej los tsim ib lub pulp. Thaum lub sijhawm ua haujlwm no, cov ntawv fibers raug muab cais tawm, thiab lwm yam khoom paug raug tshem tawm. Thaum kawg, lub pulp yog ntxuav, bleached yog tias tsim nyog, thiab hloov mus rau hauv cov ntawv tshiab los ntawm cov txheej txheem papermaking.
Qhia Txog Daim Ntawv Rov Siv Tshuab
Yog li, dab tsi yog lub tshuab uas txhawb nqa tag nrho cov txheej txheem no? Nws yog feem ntau hu ua daim ntawv rov siv lub tshuab lossis lub tshuab pulping. Cov cuab yeej tshwj xeeb no yog tsim los tswj cov ntaub ntawv pov tseg ntau thiab ua tau zoo hloov nws mus rau hauv cov ntaub so ntswg tsim los ua cov khoom siv tshiab. Cia peb tshawb xyuas cov khoom thiab kev ua haujlwm ntawm lub tshuab siv cov ntawv ua dua tshiab.
1. Pub noj system: Thawj feem ntawm daim ntawv rov siv lub tshuab yog lub tshuab pub mis. Qhov system no yog lub luag haujlwm rau kev lees txais cov ntaub ntawv pov tseg thiab pub rau hauv lub tshuab. Cov ntawv pov tseg tuaj yeem thauj khoom manually lossis los ntawm kev siv lub tshuab siv tshuab siv tshuab, nyob ntawm qhov ntsuas ntawm kev ua haujlwm.
2. Kev txheeb xyuas qhov system: Ib zaug hauv lub tshuab, cov ntawv pov tseg dhau los ntawm kev txheeb xyuas qhov system. Cov txheej txheem no siv ntau yam txheej txheem xws li cov ntxaij vab tshaus, huab cua classifiers, thiab sib nqus sib nqus cais cov ntawv sib txawv thiab tshem tawm cov kab mob tsis zoo. Cov ntawv txheeb tau raug coj mus rau ntau txoj kev rov ua dua tshiab raws li nws qib thiab qhov zoo.
3. Pulping system: Tom qab sorting, cov ntawv pov tseg nkag mus rau hauv lub pulping system. Ntawm no, daim ntawv yog tov nrog cov dej ntim loj hauv lub thawv loj hu ua pulper. Lub pulper muaj rotating hniav uas agitate qhov sib tov, rhuav tshem cov ntawv fibers thiab cais lawv los ntawm lwm yam ntaub ntawv. Cov txheej txheem pulping kuj tseem yuav koom nrog kev sib ntxiv ntawm cov tshuaj los pab ntxiv hauv kev sib cais fiber ntau thiab ntxuav.
4. Ntxuav qhov system: Thaum pulping tiav lawm, lub resulting pulp muaj impurities xws li number case, adhesives, thiab inks. Lub pulp nce mus los ntawm kev tu lub cev uas suav nrog centri- thiab hydrocyclones, cov ntxaij vab tshaus, thiab flotation hlwb. Cov Cheebtsam no ua haujlwm ua ke kom tshem tawm cov kab mob tsis zoo los ntawm cov ntaub so ntswg, tawm hauv qab cov fibers huv si haum rau kev rov ua dua.
5. Refining system: Txhawm rau txhim kho qhov zoo ntawm cov pulp, nws dhau los ua cov txheej txheem refining. Cov txheej txheem no cuam tshuam nrog kev hla cov pulp los ntawm cov tshuab ua kom zoo dua qub uas ua cov txheej txheem fiber ntau, txhim kho lawv lub zog thiab kev sib txuas. Refining kuj tseem pab tsim kom muaj qhov sib xws thoob plaws hauv lub cev.
6. Papermaking system: Thaum lub pulp yog refined, nws txav mus rau papermaking system. Nyob rau hauv no system, lub pulp yog ua ke nrog additives xws li fillers thiab dyes los tsim ib hom ntawv. Lub pulp ncua kev kawm ntawv yog kis mus rau ib tug hlau mesh conveyor siv, qhov twg dej ntws tawm, thiab fibers pib sib cog lus. Tom qab ntawd cov ntaub ntawv ntub dej yog nias, qhuav, thiab dov rau hauv cov yob loj los yog txiav rau hauv cov ntawv me.
Kev nce qib hauv daim ntawv rov siv tshuab
Tau ntau xyoo, kev nce qib hauv thev naus laus zis tau hloov pauv cov ntawv rov ua dua tshiab. Niaj hnub no cov ntaub ntawv rov ua dua tshiab tau nruab nrog cov cuab yeej ntse, kev tswj hwm hauv computer, thiab cov tshuab automation kom ua tau zoo dua thiab tsim tau. Cov kev txhim kho no tsis tsuas yog txo cov kev cuam tshuam ib puag ncig ntawm daim ntawv rov ua dua tshiab tab sis kuj ua rau nws muaj txiaj ntsig zoo.
Niaj hnub nimno daim ntawv rov siv lub tshuab yog tsim los tswj ntau yam ntawm cov ntaub ntawv pov tseg, nrog rau cov ntawv coated, cardboard, thiab cov ntaub so ntswg. Lawv tuaj yeem ua cov ntaub ntawv pov tseg ntau dua, txo lub sijhawm thiab cov peev txheej uas yuav tsum tau ua kom rov ua dua tshiab. Qee lub tshuab siab heev txawm tias muaj peev xwm rho tawm cov khoom muaj txiaj ntsig los ntawm cov khoom pov tseg, xws li hlau thiab yas, ntxiv dag zog rau cov txheej txheem rov ua dua tshiab.
Ntxiv nrog rau kev txhim kho thev naus laus zis, kev tshawb fawb thiab kev tsim kho tau tsom mus rau kev ua cov ntawv rov ua dua tshiab kom muaj zog dua. Cov txheej txheem siv hluav taws xob zoo li pulping thiab refining tau ua kom zoo kom txo qis kev siv hluav taws xob yam tsis muaj kev cuam tshuam qhov zoo ntawm cov ntawv siv dua tshiab.
Lub neej yav tom ntej ntawm Daim Ntawv Rov Siv Tshuab
Raws li lub ntiaj teb txuas ntxiv mus nrog cov teeb meem ib puag ncig, lub neej yav tom ntej ntawm daim ntawv rov siv tshuab zoo li muaj kev cia siab. Cov kws tshawb fawb thiab cov kws tsim qauv niaj hnub tshawb nrhiav txoj hauv kev tshiab los txhim kho kev ua tau zoo thiab kev ruaj khov ntawm cov txheej txheem rov ua dua tshiab.
Ib cheeb tsam ntawm kev loj hlob tseem ceeb yog kev siv kev txawj ntse txawj ntse thiab tshuab kev kawm algorithms. Cov thev naus laus zis no tuaj yeem txhim kho kev txheeb xyuas qhov tseeb, txhim kho cov txheej txheem tsis zoo, thiab kwv yees cov kev xav tau ntawm kev saib xyuas, ua rau kev txhim kho tag nrho kev ua tau zoo thiab txo qis sijhawm.
Tsis tas li ntawd, kev siv zog los txhawb kev lag luam ncig hauv kev lag luam ntawv. Qhov no suav nrog kev tsim cov voj voog kaw uas cov ntawv pov tseg tau rov ua dua tshiab nyob rau hauv ib cheeb tsam lossis kev lag luam. Cov tshuab zoo li no muaj peev xwm txo qis kev vam khom rau nkauj xwb fiber ntau, txuag cov peev txheej ntuj, thiab txo qis cov pa roj carbon hneev taw cuam tshuam nrog cov ntawv tsim tawm.
Kev xav zaum kawg
Hauv kev xaus, lub tshuab uas siv daim ntawv, feem ntau hu ua daim ntawv rov siv lub tshuab los yog lub tshuab pulping, plays lub luag haujlwm tseem ceeb hauv cov txheej txheem rov ua ntawv. Nws zoo hloov cov ntawv pov tseg rau hauv cov ntaub so ntswg, uas tom qab ntawd hloov mus rau cov khoom siv tshiab los ntawm papermaking.
Nrog rau kev nce qib hauv kev siv thev naus laus zis thiab kev tshawb fawb tsis tu ncua, cov ntawv siv tshuab ua dua tshiab tau dhau los ua cov khoom lag luam zoo dua qub, siv zog txuag, thiab ib puag ncig zoo. Raws li peb siv zog rau lub neej yav tom ntej, nws yog ib qho tseem ceeb kom txhawb nqa thiab nqis peev hauv kev tsim cov tshuab no kom ua tiav cov peev txheej ntawm cov ntawv rov ua dua tshiab thiab txo qhov cuam tshuam rau peb lub ntiaj teb.