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Gawo loyamba la kugwiritsa ntchito fyuluta ya diatomite mu kusefera kwa titaniyamu ndikuphimba kale, zomwe zikutanthauza kuti isanayambe kusefera kwa titaniyamu, chithandizo cha sefa cha diatomite chimagwiritsidwa ntchito ku sefa sing'anga, ndiye, nsalu yosefera. The diatomite wakonzedwa kuyimitsidwa mu gawo lina (nthawi zambiri 1∶8 ~ 1∶10) mu thanki chisanadze ∶10) mu thanki chisanadze ∶, ndiyeno kuyimitsidwa amapopera mu makina fyuluta wodzazidwa ndi madzi oyera kapena kusefa kudzera chisanadze ❖ ❖ kupopera, ndi kubwereza mobwerezabwereza (pafupifupi 12 ~ 30min) mpaka madzi ozungulira bwino.

Mwanjira imeneyi, precoating yogawidwa mofanana imapangidwa pazitsulo zosefera (nsalu yosindikizira). Kukonzekera kuyimitsidwa, nthawi zambiri ntchito madzi oyera, komanso angagwiritse ntchito ndi bwino titaniyamu madzi. Kuchuluka kwa diatomite komwe kumagwiritsidwa ntchito popaka chisanadze nthawi zambiri kumakhala 800 ~ 1000g/m2, ndipo kuchuluka kwa mathamangitsidwe opaka kale sayenera kupitirira 0.2m3/(m2? H). Precoating ndiye bedi loyambira la kusefera kwa titaniyamu, ndipo mtundu wake umagwirizana mwachindunji ndikuchita bwino kwa kusefera konse.

Pre-coating iyeneranso kulabadira mfundo zotsatirazi:

(1) Pakuphimba chisanadze, kuchuluka kwa diatomite kuyenera kukhala 1 ~ 3mm wandiweyani fyuluta wosanjikiza. Kutengera zomwe zidachitika kufakitale monga chitsanzo, chosindikizira cha 80m2 mbale ndi fyuluta ya chimango chinagwiritsidwa ntchito, ndipo 100kg ya thandizo la sefa ya diatomite idawonjezeredwa nthawi iliyonse pakuyanika, komwe kumatha kusefa mosalekeza kwa 5d ndikupanga 17-18T yazinthu zomalizidwa tsiku lililonse.

(2) Pamene precoating, mbale ndi chimango fyuluta atolankhani adzadzazidwa ndi madzi pasadakhale, ndipo mpweya adzatulutsidwa kumtunda kwa makina;

(3) pre-❖ kuyanika ayenera kupitiriza kugunda mkombero. Chifukwa keke ya fyuluta siinapangidwe pachiyambi, tinthu tating'ono tating'ono timadutsa munsalu ya fyuluta ndikulowa mu filtrate. Kuzungulira kungathe kusokoneza particles osefedwa pamwamba pa keke fyuluta kachiwiri. Kutalika kwa nthawi yozungulira kumadalira kuchuluka kwa kumveka kofunikira pa kusefera.

Gawo lachiwiri ndikuwonjezera kusefera. Pamene madzi a titaniyamu omwe ali ndi zonyansa zolimba ndi colloid amasefedwa, pambuyo poti ❖ kuyanika kwachitika, sikoyenera kuwonjezera thandizo la diatomite fyuluta kuti zisefe mwachindunji. Mukasefa madzi a titaniyamu okhala ndi zonyansa zolimba kwambiri komanso zonyansa, kapena posefa madzi a titaniyamu mokhazikika komanso mowoneka bwino, muyenera kuwonjezera pa sefa yamadzi a diatomite pa kusefa kwamadzi a titaniyamu. Apo ayi, pamwamba pa ❖ kuyanika chisanadze adzaphimbidwa ndi zosafunika zolimba ndi colloidal posachedwapa, kutsekereza fyuluta njira, kotero kuti kuthamanga kutsika mbali zonse za keke fyuluta adzawuka mofulumira, ndipo mkombero kusefera adzafupikitsidwa kwambiri.


Nthawi yotumiza: Apr-20-2022