Ihlelwa ngokwemathiriyeli yokucofa, iindlela zokucofa kunye nokusetyenziswa kwepulp, okufana ne-kraft softwood pulp, i-pulp yeplanga yomatshini, i-pulp yomthi esulungekileyo, njl njl.I-wood pulp ayisetyenziswanga kuphela ekwenzeni iphepha, kodwa isetyenziswa ngokubanzi kwamanye amacandelo oshishino.Ke ngoko, kwipulp enenxalenye enkulu ye-latewood, ekubetheni okuphakathi, ngakumbi ekubetheni kwe-viscous, kufuneka ibethwe ngoxinzelelo oluthile olusezantsi kunye noxinzelelo oluphezulu, kwaye indlela yokuwisa ngokulandelelanayo iimela okanye ukunciphisa ngokulandelelana isithuba semela kufuneka kube. esetyenziselwa ukubetha.
Kwimeko yokunciphisa imfuno yephepha lenkcubeko, ukukhula kwemfuno yephepha lasekhaya kunokukhuthaza ngokufanelekileyo ukusetyenziswa kweemarike zokhuni.Ngothelekiso oluthe tyaba, ukusetyenziswa komntu ngamnye kwephepha lekhaya kwilizwe lam kuphela i-6kg/unyaka womntu, ephantsi kakhulu kunaleyo yamazwe aphuhlileyo.Kumxholo wokucotha kwemfuno yephepha lenkcubeko kwilizwe lam, imfuno yephepha lasekhaya kulindeleke ukuba ibe ngumqhubi omtsha wokukhula kwimfuno ye-pulp.
Ngokutsho kwedatha yamasiko, kwiinyanga ezisixhenxe zokuqala zalo nyaka, ichweba laseManzhouli lingenisa iitoni ezingama-299,000 zepulp, ukwanda kwe-11.6% ngonyaka;ixabiso laliyi-1.36 yezigidigidi, ukwanda kwe-43.8% unyaka nonyaka.Kufanelekile ukukhankanya ukuba ngoJulayi kulo nyaka, i-pulp ephuma kumazwe angaphandle kwizibuko laseManzhouli yayiziitoni ezingama-34,000, ukwanda kwe-8% ngonyaka;ixabiso laliyi-190 yezigidi, ukwanda kwe-63.5% unyaka nonyaka.Kwiinyanga ezisixhenxe zokuqala zalo nyaka, elona zibuko laseTshayina - izibuko laseManzhouli, ixabiso lokungenisa ipulp ligqithise kwi-1.3 yezigidigidi.Oku kuhambelana nokunyuka okukhulu kweemfuno zentengiso yeplanga yeplanga yasekhaya kwisiqingatha sokuqala salo nyaka, okukhokelele ekwandeni kokungeniswa kwamanye amazwe.
Kwi- earlywood kunye ne-latewood pulp, umlinganiselo we- earlywood kunye ne-latewood uhlukile, kwaye umgangatho we-pulping ukwahluka xa iimeko zokubetha ezifanayo zisetyenziselwa ukubetha.I-latewood fiber inde, udonga lweseli lungqindilili kwaye luqinile, kwaye udonga lokuzala alonakali lula.Ngexesha lokubetha, iifayili zinqunyulwa ngokulula, kwaye kunzima ukufunxa amanzi kunye nokuvuvukala kwaye ibe yi-fibrillated.
I-China ingomnye wabathengi abakhulu be-pulp yeplanga, kwaye ayikwazi ukufikelela ngokufanelekileyo ukuzimela kwe-pulp ekrwada ngenxa yokungabikho kwemithombo yehlathi.Intlaka yeenkuni ixhomekeke ikakhulu ekuthengisweni kumazwe angaphandle.Ngo-2020, ukungeniswa kwe-pulp yokhuni kubalelwa kwi-63.2%, phantsi kwepesenti ye-1.5 yeepesenti ukusuka ngo-2019.
Ukusuka ekusasazweni kommandla welizwe lam loshishino lwemithi yeplanga, ubutyebi behlathi eMpuma China naseMzantsi China busasazwa ngokubanzi, kwaye amandla elizwe lam lokuvelisa iinkuni zomthi asasazwa ikakhulu eMpuma China naseMzantsi China.Idatha ibonisa ukuba isixa-mali soMzantsi we-China kunye ne-East China zenza ngaphezu kwe-90% yelizwe lam lomthamo wemveliso yenkuni.ubutyebi bomhlaba wehlathi lelizwe lam bunqongophele.Ukuchaphazeleka ngamanyathelo afana nokukhuselwa kwendalo, kukho inani elikhulu lenkunkuma enyakatho engekavulwa, enokuthi ibe ngundoqo ekuphuhliseni amahlathi okwenziwa kwixesha elizayo.
Imveliso yelizwe lam imveliso yeplanga yeenkuni ikhule ngokukhawuleza, kwaye izinga lokukhula liye lakhula ngokukhawuleza ukususela ngo-2015. Ngokutsho kwedatha, imveliso yelizwe lam yokhuni iya kufikelela kwi-1,490 ngo-2020, ukwanda kwe-17.5% ngo-2019.
Xa sijonga umlinganiselo wentlama yeenkuni kushishino lwentlama, ilizwe lam imveliso yeplanga yenkuni iye yonyuka unyaka nonyaka kumlinganiselo xa iyonke yentlama, ifikelela kuma-20.2% ngo-2020. i-pulp, irayisi kunye nengqolowa yengqolowa, njl.njl.) ibalwa kwi-7.1%, ngelixa i-pulp yephepha lenkunkuma yanda ngokukhawuleza, ibala i-72.7% ngo-2020, njengomthombo oyintloko we-pulp.
Ngokutsho kwedatha yophando ye-China Paper Association, imveliso ye-pulp iyonke kweli lizwe yayiyi-79.49 yezigidi zeetoni, ukwanda kwe-0.30%.Phakathi kwabo: i-10.5 yezigidi zeetoni zoshishino lweenkuni, ukwanda kwe-4.48%;63.02 yezigidi zeetoni zenkunkuma yephepha;I-5.97 yezigidi zeetoni ze-non-wood pulp, ukwanda kwe-1.02%.I-pulp ye-hardwood kufuneka ibethelwe ngoxinzelelo oluthile lokubetha kunye noxinzelelo oluphezulu lokubetha.Iintsinga ze-softwood pulp zinde, ngokubanzi ziyi-2-3.5 mm.Xa uvelisa iphepha lengxowa yesamente, akukhuthazwa ukusika iifiber ezininzi., ukwenzela ukuhlangabezana neemfuno zokulingana kwephepha, kufuneka linqunywe kwi-0.8-1.5 mm.Ngoko ke, kwinkqubo yokubetha, iimeko zenkqubo yokubetha zingamiselwa ngokweemfuno zohlobo lwephepha.
Ixesha lokuposa: Oct-14-2022
