●Bamboo pulp papermaking process
Kubva zvakabudirira budiriro yemaindasitiri uye kushandiswa kwe bamboo, maitiro mazhinji matsva, matekinoroji uye zvigadzirwa zvekugadzira bamboo zvakabuda imwe mushure meimwe, izvo zvakavandudza zvakanyanya kukosha kwekushandisa kwe bamboo. Kuvandudza tekinoroji yekuChina yekukwenya matekinoroji yapaza nenzira yechinyakare yemanyorero uye yave kushanduka kuita maindasitiri uye maindasitiri ekugadzira modhi. Iyo yazvino yakakurumbira bamboo pulp yekugadzira maitiro ndeyemakanika, kemikari uye kemikari mechini. Mushenjere pulp yekuChina inowanzoita makemikari, inoverengera inosvika makumi manomwe muzana; makemikari mechanical zvishoma, zvishoma pane 30%; kushandiswa kwemichina nzira kugadzira bamboo pulp inogumira padanho rekuyedza, uye hapana yakakura-yakakura mushumo weindasitiri.
1. Nzira yekushandura michina
Iyo mechanical pulping method ndeyekukuya bamboo kuita faibha nenzira dzemuchina pasina kuwedzera makemikari. Iine zvakanakira kusvibiswa kwakaderera, yakakwira pulping rate uye nyore maitiro. Pasi pemamiriro ekuwedzera kusimba kwekudzora kusvibiswa uye kushomeka kwehuni pulp zviwanikwa munyika, mechanical bamboo pulp zvishoma nezvishoma zvakakosheswa nevanhu.
Kunyangwe mechanical pulping ine mabhenefiti eiyo yakakwira pulping rate uye yakaderera kusvibiswa, inoshandiswa zvakanyanya muindasitiri yekupuruzira uye yekugadzira mapepa ezvigadzirwa zveconiferous sespruce. Zvisinei, nekuda kwehuwandu hwehuwandu hwe lignin, ash, uye 1% NAOH yakatorwa mumakemikari emushenjere, iyo pulp quality haina kunaka uye zvakaoma kuzadzisa zvinodiwa zvemhando yebepa rekutengesa. Maindasitiri ekushandisa haawanzo uye kazhinji ari padanho rekutsvagisa kwesainzi uye tekinoroji kuongorora.
2.Chemical pulping nzira
Iyo kemikari pulping nzira inoshandisa bamboo seyakagadzirwa uye inoshandisa nzira yesulfate kana sulfite nzira kugadzira bamboo pulp. Iyo bamboo mbishi zvinhu inoongororwa, yakashambidzwa, yakapera mvura, yakabikwa, yakakonzeresa, yakasefa, yakashambidzwa yakashambidzwa, yakavharwa kuongorora, oxygen delignification, bleaching uye mamwe maitiro ekugadzira bamboo pulp. Iyo kemikari pulping nzira inogona kuchengetedza iyo fiber uye kuvandudza iyo pulping rate. Iyo pulp inowanikwa ndeyemhando yakanaka, yakachena uye yakapfava, iri nyore kubleach, uye inogona kushandiswa kugadzira yepamusoro-giredhi rekunyora bepa nebepa rekudhinda.
Nekuda kwekubviswa kwehuwandu hukuru hwe lignin, madota uye zvakasiyana-siyana zvakatorwa mukugadzirisa kwemakemikari pulping nzira, iyo pulping rate ye bamboo pulping yakaderera, kazhinji 45% ~ 55%.
3.Chemical Mechanical Pulping
Kemikari Mechanical Pulping inzira yekupuruzira inoshandisa bamboo seyakabikwa uye inosanganisa mamwe maitiro emakemikari pulping uye mechanic pulping. Kemikari Mechanical Pulping inosanganisira semi-kemikari nzira, makemikari mechanical nzira uye makemikari thermomechanical nzira.
Kune bamboo pulping uye kugadzira mapepa, iyo pulping rate yemakemikari mechanical pulping yakakwirira kudarika yemakemikari pulping, iyo inogona kusvika 72% ~ 75%; mhando yepulp inowanikwa nemakemikari mechanical pulping yakakwirira kwazvo kupfuura ye mechanical pulping, iyo inogona kusangana nezvinodiwa zvekugadzirwa kwepepa rezvigadzirwa. Panguva imwecheteyo, mutengo wekupora alkali uye kurapwa kwetsvina iri zvakare pakati pemakemikari pulping uye mechanical pulping.
▲Mutsetse wekugadzira Bamboo Pulping
●Midziyo yekugadzira mapepa eBamboo Pulp
Zvishandiso zvechikamu chekugadzira che bamboo pulp papermaking mutsara wekugadzira wakangofanana neiyo yehuni pulp yekugadzira mutsara. Musiyano mukuru we bamboo pulp papermaking equipment uri muzvikamu zvekugadzirira zvakaita sekucheka, kuwacha nekubika.
Nekuda kwekuti mushenjere une buri, midziyo yekuchekeresa yakasiyana neyehuni. Inowanzo shandiswa bamboo slicing (flaking) midziyo inonyanya kusanganisira roller bamboo cutter, disc bamboo cutter uye chigubhu chipper. Roller bamboo cutters uye disc bamboo cutters vane hunyanzvi hwekushanda, asi mhando yeakagadziriswa bamboo machipisi (bamboo chip shape) haana kunaka seaya edhiramu chipper. Vashandisi vanogona kusarudza yakakodzera slicing (flaking) zvishandiso zvinoenderana nechinangwa che bamboo pulp uye mutengo wekugadzira. Kumiti midiki uye yepakati nepakati pe bamboo pulp zvirimwa (zvinobuda <100,000 t/a), midziyo yemumba yekuchekeresa bamboo inokwana kuzadzisa zvinodiwa zvekugadzira; kune mahombe emushenjere pulp zvirimwa (zvinobuda ≥100,000 t/a), zvemberi zvepasirese mahombe-scale slicing (flaking) michina inogona kusarudzwa.
Bamboo chip washing equipment inoshandiswa kubvisa tsvina, uye zvinhu zvakawanda zvine patent zvakataurwa kuChina. Kazhinji, vacuum pulp washers, pressure pulp washers uye bhandi pulp washers anoshandiswa. Mabhizinesi epakati uye makuru anogona kushandisa nyowani mbiri-roller displacement press pulp washers kana yakasimba dewatering pulp washers.
Bamboo chip midziyo yekubika inoshandiswa kupfavisa bamboo chip uye kupatsanurwa kwemakemikari. Mabhizinesi madiki uye epakati nepakati anoshandisa hari dzekubikira dzakamira kana dzakachinjika chubhu inoenderera yekubikira. Mabhizinesi mahombe anogona kushandisa Camille anoenderera mberi ekubikira ane diffusion washing kuti avandudze kugadzirwa kwakanaka, uye goho remapulp rinowedzerawo zvinoenderana, asi rinowedzera mari yenguva imwe chete yekudyara.
1.Bamboo pulp papermaking ine simba guru
Zvichienderana neongororo yezviwanikwa zvemushenjere zveChina uye ongororo yekukodzera kwe bamboo pachayo kugadzira mapepa, kusimudzira zvine simba indasitiri yekukwenya bamboo haingogone kudzikisa dambudziko rehuni dzakaomarara muindasitiri yemapepa yeChina, asi zvakare kuve nzira inoshanda yekushandura iyo mbishi chimiro cheindasitiri yekugadzira mapepa uye kuderedza kutsamira pamachipisi ehuni anotengeswa kunze kwenyika. Dzimwe nyanzvi dzakaongorora kuti mutengo wemushenjere pulp payuniti misa ungangoita 30% kuderera pane wepaini, spruce, eucalyptus, nezvimwewo, uye kunaka kwemushenje pulp yakaenzana neiyo yehuni pulp.
2. Kubatanidzwa kwepepa remusango inzira yakakosha yekusimudzira
Nekuda kwekukurumidza kukura uye kuvandudza mabhenefiti emushenjere, kusimbisa kurimwa kwemasango akakosha anokurumidza kukura uye kumisikidza chigadziko chekugadzira bamboo chinobatanidza sango nebepa chichava gwara rekusimudzira kwakasimba kweChina pulp uye indasitiri yekugadzira mapepa, kuderedza kutsamira kune kunze kwenyika matanda machipisi uye pulp, uye kusimudzira maindasitiri enyika.
3.Cluster bamboo pulping ine hukuru hwekusimudzira
Muindasitiri yazvino yekugadzira bamboo, inopfuura 90% yezvigadzirwa zvinogadzirwa nemoso bamboo (Phoebe nanmu), iyo inonyanya kushandiswa kugadzira zvinhu zvemumba uye zvimiro. Bamboo pulp papermaking zvakare inonyanya kushandisa moso bamboo (Phoebe nanmu) uye cycad bamboo sezvimisikidzwa, izvo zvinoumba mamiriro emakwikwi ezvakagadzirwa zvinhu uye hazvienderane nekusimudzira kwakasimba kweindasitiri. Pahwaro hwemhando dzakasvibirira dze bamboo dziripo, iyo bamboo pulp papermaking indasitiri inofanirwa kusimbaradza mhando dzemhando dze bamboo kuti ishandise zvinhu zvakasvibirira, kushandisa zvizere iyo yakaderera-mutengo cycad bamboo, hofori dhiragoni bamboo, phoenix muswe bamboo, dendrocalamus latiflorus uye imwe clumping bamboo yekupuruzira uye kugadzira mapepa emusika.
▲Bamboo rakaungana rinogona kushandiswa sechinhu chakakosha chekudya
Nguva yekutumira: Sep-04-2024
