Cellulose ether ndiye chowonjezera chomwe chimagwiritsidwa ntchito kwambiri mumatope a ufa wouma. Ma cellulose ether amagwira ntchito yofunika kwambiri mumatope owuma a ufa. Pambuyo pa ether ya cellulose mumatope imasungunuka m'madzi, mphamvu yogwira ntchito ya simenti mu dongosolo imatsimikiziridwa chifukwa cha ntchito yapamwamba. Monga colloid zoteteza, cellulose ether "zimangiriza" tinthu tating'onoting'ono tating'onoting'ono ndikupanga filimu yopaka mafuta pamtunda wake wakunja, zomwe zimapangitsa kuti matope azikhala okhazikika komanso amathandizira kukhazikika kwamadzi ndi kukhazikika kwa matope panthawi yosakanikirana. Kusalala kwa zomangamanga. Chifukwa cha mawonekedwe ake a mamolekyu, njira ya cellulose ether imapangitsa kuti madzi a mumatope asakhale osavuta kutaya, ndipo pang'onopang'ono amawamasula kwa nthawi yaitali, ndikupangitsa kuti matope azikhala ndi madzi abwino osungira komanso ogwira ntchito. Kusungidwa kwamadzi kwa cellulose ether ndiye chizindikiro chofunikira kwambiri komanso chofunikira. Kusungidwa kwa madzi kumatanthawuza kuchuluka kwa madzi omwe amasungidwa ndi matope osakanikirana omwe ali pamunsi woyamwa pambuyo pa capillary action. Mayeso osungira madzi a cellulose ether pakali pano alibe njira zoyesera zoyenera m'dzikolo, ndipo opanga nthawi zambiri samapereka magawo aukadaulo, zomwe zimabweretsa zovuta kwa ogwiritsa ntchito ndikuwunika. Ponena za njira zoyesera zazinthu zina, ma cellulose ether otsatirawa akufotokozedwa mwachidule Njira yoyesera yosungira madzi ndiyo kukambirana.
1. Njira yopopera vacuum
Chinyezi mu slurry pambuyo suction kusefera
Njirayi imatanthawuza muyeso wamakampani a JC/T517-2005 "Plastering Gypsum", ndipo njira yoyesera imatanthawuza muyezo woyambirira waku Japan (JISA6904-1976). Pakuyesa, lembani nsonga ya Buchner ndi matope osakanizidwa ndi madzi, ikani pa botolo la zosefera, yambitsani pampu ya vacuum, ndikusefa kwa mphindi 20 mopanikizika ndi (400 ± 5) mm Hg. Ndiye, malinga ndi kuchuluka kwa madzi mu slurry pamaso ndi pambuyo suction kusefera, kuwerengera madzi posungira mlingo motere.
Kusungirako madzi (%) = chinyezi mu slurry pambuyo pa kusefera / chinyezi mu slurry musanasefedwe)KX)
Njira ya vacuum ndiyolondola kwambiri poyezera kuchuluka kwa kusungirako madzi, ndipo cholakwikacho ndi chaching'ono, koma chimafuna zida zapadera ndi zida, ndipo ndalamazo zimakhala zazikulu.
2. Njira yosefera mapepala
Njira ya pepala losefera ndikuweruza kusungidwa kwamadzi kwa cellulose ether ndi kuyamwa kwamadzi kwa pepala losefera. Zimapangidwa ndi nkhungu yoyesera mphete yachitsulo yokhala ndi kutalika kwina, pepala losefera ndi mbale yothandizira magalasi. Pali zigawo 6 za pepala losefera pansi pa nkhungu yoyesera, wosanjikiza woyamba ndi pepala losefa mwachangu, ndipo zigawo 5 zotsalazo ndi pepala losakwiya. Gwiritsani ntchito mlingo wolondola kuti muyese kulemera kwa pallet ndi zigawo 5 za pepala la fyuluta pang'onopang'ono choyamba, tsanulirani matope mu nkhungu yoyesera mutatha kusakaniza ndi kupukuta, ndipo muyime kwa mphindi 15; ndiye yezani kulemera kwa mphasa ndi zigawo 5 za kulemera kwa pepala lapang'onopang'ono. Zowerengedwa motengera formula iyi:
M=/S
M—kutayika kwa madzi, g/nm?
kulemera kwa nu_pallet + 5 zigawo za pepala lapang'onopang'ono la fyuluta; g
m2_ Kulemera kwa mphasa + 5 zigawo za pang'onopang'ono fyuluta pepala pambuyo mphindi 15; g
S_area mbale yoyeserera nkhungu?
Mukhozanso kuona mwachindunji mlingo wa mayamwidwe madzi a fyuluta pepala, m'munsi mayamwidwe madzi a fyuluta pepala, ndi bwino kusunga madzi. Njira yoyesera ndiyosavuta kugwiritsa ntchito, ndipo mabizinesi wamba amatha kukwaniritsa zoyeserera.
3. Njira yoyesera nthawi yowuma pamwamba:
Njirayi ingatanthauze GB1728 "Kutsimikiza kwa Nthawi Yowumitsa Paint Film ndi Putty Film", kukwapula matope ogwedezeka pa bolodi la simenti ya asbestosi, ndikuwongolera makulidwe a 3mm.
Njira 1: njira ya mpira wa thonje
Pang'ono ndi pang'ono ikani mpira wa thonje woyamwa pamwamba pa matope, ndipo nthawi ndi nthawi, gwiritsani ntchito pakamwa panu kuti mpirawo ukhale wa thonje 10-15 mainchesi kutali ndi mpira wa thonje, ndipo pang'onopang'ono imbani mpira wa thonje motsatira njira yopingasa. Ngati chitha kuwululidwa ndipo palibe ulusi wa thonje wotsalira pamtunda, pamwamba pake amaonedwa kuti ndi youma, nthawi yayitali, ndi bwino kusunga madzi.
Njira yachiwiri, kukhudza zala
Gwirani pang'onopang'ono pamwamba pa matope ndi zala zoyera nthawi ndi nthawi. Ngati zimamveka zomata pang'ono, koma palibe matope pa chala, zikhoza kuonedwa kuti pamwamba ndi youma. Kutalikirapo kwa nthawi kumapangitsa kuti madzi asungidwe bwino.
Njira zomwe zili pamwambazi, njira ya mapepala a fyuluta ndi njira yogwiritsira ntchito zala zimagwiritsidwa ntchito kwambiri komanso zosavuta; ogwiritsa ntchito amatha kuweruza poyambirira momwe amasungira madzi a cellulose ether kudzera m'njira zomwe zili pamwambazi.
Nthawi yotumiza: Feb-14-2023