Zotsatira za Wet End Chemistry pa Paper Machines

Mawu akuti "wet end chemistry" ndi mawu apadera pakupanga mapepala.Nthawi zambiri amagwiritsidwa ntchito pofotokoza zinthu zosiyanasiyana (monga ulusi, madzi, ndi zina), zodzaza,mankhwala zowonjezera, etc.) lamulo la kuyanjana ndi kuchitapo kanthu.

Kumbali imodzi, chemistry yonyowa ingagwiritsidwe ntchito kupititsa patsogolo ngalande, kuchepetsa mpweya wolowa ndi kuchotsa thovu, kusunga makina a mapepala kukhala oyera, ndi kusunga madzi oyera kukhala olimba;Kumbali ina, ngati zinthuzi sizikuyenda bwino, chemistry yonyowa yomweyi imatha Kupangitsa makina a pepala kuti aziyenda molakwika, kupanga mawanga ndi thovu la mpweya pamapepala, kuchepetsa kukhetsa kwamadzi, kupanga makina a pepala kukhala odetsedwa, ndikuchepetsa kupanga bwino. .

Zimawonetsedwa makamaka m'mbali zotsatirazi:

1) Kutha kwa slurry

Kukhetsa madzi ndi ntchito yofunika kwambiri pamakina a pepala.Kuchuluka kwa ngalande zamadzi pa intaneti ya mapepala kudzakhudzidwa ndi kusuntha pakati pa ulusi ndi ulusi komanso pakati pa ulusi wabwino ndi ulusi wabwino.Ngati flocs anapanga ndi lalikulu ndi porous, zamkati adzakhala viscous ndi kulepheretsa ndimeyi madzi, potero kuchepetsa madzi ngalande.

2) Mvula ndi makulitsidwe

Sedimentation ndi fouling nthawi zambiri zimachitika pamene chemistry yonyowa ikutha mphamvu, kugwiritsa ntchito mopitirira muyeso wa zowonjezera mankhwala, kusalinganika kwa malipiro, kusagwirizana kwa mankhwala, ndi kusakhazikika kwa mankhwala, ndi zina zotero, zomwe zingayambitse kusungunuka ndi kusokoneza makina a mapepala.Mwanda, pali njira zambiri zotsuka zinyalala ndi dothi, koma njira yabwino ndiyo kupeza chomwe chayambitsa kusalamuliridwa ndikuwongolera.

3) Kupanga thovu

Ulusi wa nkhuni uli ndi zinthu zomwe zimakhazikitsira mpweya mu zamkati (ndipo zina zowonjezera mankhwala zimagwiranso ntchito), kuchepetsa kutuluka kwa zamkati, kuchititsa kumamatira ndi thovu.Ngati zichitika, njira yabwino ndiyo kupeza chifukwa chake ndikuchichotsa.Ngati izi sizingatheke, njira zamakina ndi mankhwala zitha kugwiritsidwa ntchito kuti zithetse.Panthawi imeneyi, udindo wa chonyowa mapeto umagwirira ndi zochepa.