M'malo amakono, mavuto a zinyalala omwe amabwera chifukwa cha chitukuko cha mafakitale akhala akusamalidwa bwino m'dziko muno komanso kunja kwa dzikolo. Ponena za izi, tiyenera kutchula momwe zinthu zochotsera utoto m'madzi zimagwirira ntchito. Mwachidule, zinyalala zomwe zimapangidwa ndi mafakitale ambiri zimafunika kugwiritsa ntchito zinthu zochotsera utoto m'madzi. Yixing Cleanwater idzakupatsani chidziwitso ndi ntchito zoyenera m'magawo osiyanasiyana.
Ma flocculant osiyanasiyana ochotsa utoto a polymer amagwiritsidwa ntchito kwambiri pantchito yoyeretsa madzi ndi zimbudzi za mafakitale kunja, pakati pawo polyacrylamide (PAM) ndiye mtundu waukulu wa flocculant wochotsa utoto. Poyerekeza ndi ma flocculant amchere osapangidwa mwachilengedwe, PAM, monga mtundu watsopano wa mankhwala oyeretsera madzi, ili ndi zabwino zambiri: zosavuta kugwiritsa ntchito, mphamvu ya flocculation ndi yokwera kambiri kuposa ma flocculant achikhalidwe osapangidwa mwachilengedwe ochotsa utoto; flocculating mwachangu ndi liwiro la sedimentation, mphamvu yayikulu yochotsera madzi a matope; mphamvu yapadera yoyeretsera madzi pa zimbudzi zina; zida zosavuta zofunika, malo ochepa; mtengo wotsika woyeretsera; zimbudzi zimatha kubwezeretsedwanso ndikugwiritsidwanso ntchito, ndi zina zotero.
Kugwiritsa ntchitoPAM yochotsa utoto wa flocculant m'magawo osiyanasiyana ogwiritsira ntchito:
1. Kugwiritsa ntchito mumakampani opanga mapepala
Kugwiritsa ntchito PAM yolemera kwambiri ngati flocculant yochotsa utoto kungapangitse kuti utoto ndi zinthu zina zigwere m'madzi oyera zigwere ndikuchepetsa kutayika kwawo. Kuwonjezera 0.25 ~ 0.5% PAM ku pulp kungawonjezere kuchuluka kwa dothi la pulp ndi nthawi 40 ~ 80, kuchepetsa kuchuluka kwa dothi m'madzi oyera ndi pafupifupi 66%, kuwonjezera kuchuluka kwa phulusa m'mapepala, kuwonjezera kuchuluka kwa utoto monga dongo loyera ndi 8 ~ 18%, ndikusunga 20kg ya pulp pa tani imodzi ya pepala. Kuphatikiza apo, mutagwiritsa ntchito PAM, kutayikira kwa madzi oyera kumachepa kwambiri, zomwe zimachepetsa kuipitsa chilengedwe. Mwachitsanzo, madzi oyera otayidwa omwe ali ndi pH = 6.8 ndi 3000ppm. Pambuyo pothandizidwa ndi PAM ndi digiri ya hydrolysis ya 5 ~ 10%, kulemera kwa mamolekyulu kwa 5.5 ~ 10 miliyoni, ndi 500ppm ya aluminium sulfate, madzi oyera amatha kusinthidwa kukhala madzi opanda mtundu komanso owonekera, ndipo madzi otayidwawo amachepetsedwa kufika pansi pa 50ppm.
2. Kugwiritsa ntchito mankhwala ochotsa utoto m'madzi
①Kuletsa kukula ndi kuchepetsa kukula
Pokonza madzi ndi zimbudzi zamafakitale, madzi osaphika ayenera kufotokozedwa kaye. Ma flocculants ochotsa utoto wa PAM ndi ma coagulants osapangidwa nthawi zambiri amagwiritsidwa ntchito pamodzi, zomwe zimachepetsa kwambiri kugwiritsa ntchito ma coagulants osapangidwa, kupewa kutsekeka kwa zida ndi dzimbiri chifukwa chogwiritsa ntchito kwambiri ma coagulants osapangidwa, ndikuletsa kupanga sikelo. Magawo 37.5 a PAM okhala ndi kulemera kwa molekyulu pansi pa 1 miliyoni ndi magawo 50 a sodium tripolyphosphate amagwiritsidwa ntchito kupanga choletsa sikelo, chomwe chimatha kuletsa kukula kwa ma heat exchanger olemera kwambiri.
②Kuchiza zimbudzi za mafakitale
3. Kugwiritsa ntchito mankhwala ochotsa utoto m'madzi otayira m'makampani opanga shuga
Madzi a nzimbe omwe amachotsedwa mu makina osindikizira ndi mafakitale a shuga nthawi zambiri amakhala ovunda ndipo kapangidwe kake kali kovuta kwambiri. Kuti mupeze madzi oyera a nzimbe, mankhwala oyeretsera amafunika kuwonjezeredwa. Kale, mankhwala oyeretsera omwe sagwiritsidwa ntchito m'chilengedwe nthawi zambiri ankagwiritsidwa ntchito, koma chifukwa cha kupita patsogolo kwa makampani opanga shuga, mankhwala oyeretsera omwe sagwiritsidwa ntchito m'chilengedwe sangakwanitsenso kukwaniritsa zosowa za opanga. M'zaka zaposachedwa, kugwiritsa ntchito PAM m'makampani opanga shuga kungapangitse kuti chiŵerengero cha madzi chiwonjezeke ndi nthawi 20.
Mwachidule, tikasankha polyacrylamide PAM decolorization flocculant malinga ndi momwe zinthu zilili, tiyenera kusankha malinga ndi momwe zinthu zilili. Chifukwa chake, kusankha polyacrylamide ndikofunikira kwambiri.
Ngati mukufuna zinthu zathu, chonde musazengereze kuteroLumikizanani nafe!
Nthawi yotumizira: Meyi-27-2025