Mfundo ya kusefera kwa diatomaceous earth
Vinyo ndi zakumwa zosefedwa ndi dothi la diatomaceous zili ndi kukoma komweko, sizili poizoni, zilibe zinthu zopachikidwa kapena zopindika, zimakhala zowonekera bwino komanso zosefedwa bwino, zimakhala ndi malo ochepa, zimakhala zopepuka, ndipo zimakhala zosavuta kusuntha. Zinthu zazikulu zowongolera ndi zinthu za chipolopolo, kuthamanga kwa chipolopolo, kukula kwake, kuchuluka kwa zowonjezera, ndi mphamvu ya backwash.
Kukhuthala kwa nembanemba ya fyuluta nthawi zambiri kumakhala 2-3mm, ndipo kukula kwa tinthu ta dothi la diatomaceous ndi 1-10 μ M. Mukamaliza kusefa, nthawi zambiri mumagwiritsa ntchito madzi, mpweya wopanikizika, kapena zonse ziwiri potsuka m'mbuyo. Ubwino wa kusefa popanda zitseko ndikugwiritsa ntchito bwino mankhwala, madzi ochepa otsukira (osakwana 1% ya madzi opangira), komanso malo ochepa (osakwana 10% ya malo wamba osefa mchenga). Poyerekeza ndi fyuluta yakale ya thonje, ili ndi ubwino wodziwikiratu: kusunga mphamvu ndi 92%, kutayika kwa vinyo ndi 90%, kusunga ndalama pazida ndi 2/3, ndi kuchepetsa antchito opanga ndi 3/4. Ndiye kodi mfundo yomwe ikugwiritsidwa ntchito ndi iti?
Mfundo ya kusefa kwa dziko lapansi la diatomaceous ndikusefa madzi. Pogwiritsa ntchito mphamvu ya pampu, amalowa m'chipinda chosonkhanitsira kudzera mu pre coating. Tinthu tating'onoting'ono ndi ma polima timalowetsedwa mu pre coating, ndipo madzi oyeretsedwa amalowa m'chipinda chosonkhanitsira ndi kutuluka m'chidebe kudzera mu axis yapakati. Fyuluta imakhala ndi sefa yotchingira, chinsalu chothandizira, ndi chimango chakunja. Fyuluta iliyonse ndi chubu chokhala ndi mabowo ngati chigoba, chokulungidwa ndi waya wachitsulo ndikukutidwa ndi diatomaceous earth coating pamwamba. Fyuluta imakhazikika pa diaphragm, ndipo mbali zakumtunda ndi zakumunsi za diaphragm ndi chipinda chamadzi chosaphika ndi chipinda chamadzi choyeretsedwa. Kuzungulira konse kwa kusefa kumagawidwa m'magawo atatu: kuyala ndi nembanemba, kusefa, ndi kusamba kumbuyo.
Mtengo wotsika wa kusefa kwa nthaka ya diatomaceous: kugwiritsa ntchito madzi: kugwiritsa ntchito madzi otsukira kumbuyo ndi 1/10 ya zosefera zamchenga; Kugwiritsa ntchito mphamvu: Mphamvu yonse ya chipinda cha makina osinthika a A-1 ndi pafupifupi 3/5 ya mphamvu yonse ya chipinda cha makina osefa cha silinda yamchenga; Mlingo: Pakusefa, iyenera kuwonjezeredwa ku chipinda cha makina amtundu wa A-1, ndi mlingo wa 0.2kg pa mita imodzi ya sikweya ya malo osefa pa nthawi yonse yosefa.
Mu njira yosefera ya dziko lapansi ya diatomaceous, dziko lapansi la diatomaceous palokha lili ndi ma pores ang'onoang'ono ambiri achilengedwe, ndipo ma pores osakhazikika mu fyuluta ndi aatali komanso ofalikira kwambiri mu fyuluta yonse ya keke, yomwe imatha kuyamwa ndikukhala ndi tinthu tating'onoting'ono, motero kupititsa patsogolo kusefera. Kusefera kumakhala ndi magawo awiri: kuphimba ndi kuyamwa. Pogwira ntchito, dziko lapansi la diatomaceous limagawidwa kukhala pre coating ndi fyuluta yomwe imayamwa pa nsalu yosefera kunja kwa fyuluta, ndikupanga fyuluta ya keke yosagwedezeka yokhala ndi ma pores osawerengeka ovuta komanso olumikizana. Panthawi yosefera, zinyalala zazikulu mu fyuluta zimagwidwa pamwamba pa fyuluta ya keke chifukwa cholephera kudutsa m'ma pores ang'onoang'ono osefera, omwe amatchedwa njira yowunikira. Tinthu tating'ono timalowa mu fyuluta ya keke ndipo timayamwa ndi kulowetsedwa m'ma pores opindika komanso ovuta, omwe amatchedwa njira yoyamwa. Kuti mupeze yankho lomveka bwino lolowera. Pamene kuthamanga kwa fyuluta kukukwera, zimasonyeza kuti mabowo ena osefera mu fyuluta yatsekedwa. Panthawiyi, gawo latsopano la fyuluta limapangidwa powonjezera dothi la diatomaceous ku makina osefera kuti apitirize kusefera. Pamene ma pores ambiri mu gawo la fyuluta ya keke atsekedwa ndipo kuchuluka kwa kusefera kumachepa, chotsani keke ya fyuluta, pukutani kale gawo latsopano la fyuluta ya keke, kenako sefani. Mukawona kusefera kwa makeke osefera ogawika m'magawo okonzedwa kale ndi osefera, zitha kuwonedwa kuti zonyansa zambiri zimasefedwa pozembedwa ndipo zimatsekeredwa kunja kwa ma pores osefera, ndipo zonyansa zochepa kwambiri zimalowa mkati mwa ma pores.