I-Cellulose ether iyisengezo esisetshenziswa kakhulu odakeni lwempuphu eyomile. I-Cellulose ether idlala indima ebalulekile ku-powder mortar omile. Ngemuva kokuthi i-cellulose ether odakeni incibilike emanzini, umphumela osebenzayo wezinto zikasimende ohlelweni uqinisekisiwe ngenxa yomsebenzi ongaphezulu. Njenge-colloid evikelayo, i-cellulose ether "igoqa" izinhlayiya eziqinile futhi yakha ifilimu yokugcoba endaweni yayo yangaphandle, okwenza uhlelo lodaka luzinze futhi luthuthukise uketshezi nokuzinza kodaka ngesikhathi sokuxuba. Ubushelelezi bokwakha. Ngenxa yesakhiwo sawo samangqamuzana, isixazululo se-cellulose ether senza amanzi odaka angabi lula ukulahlekelwa, futhi kancane kancane akhiphe isikhathi eside, enikeza udaka ngokugcina amanzi kahle nokusebenza. Ukugcinwa kwamanzi kwe-cellulose ether kuyinkomba ebaluleke kakhulu futhi eyisisekelo. Ukugcinwa kwamanzi kubhekisela enanini lamanzi agcinwe udaka olusanda kuxutshwa kusisekelo esimunca ngemva kokusebenza kwe-capillary. Ukuhlolwa kokugcinwa kwamanzi kwe-cellulose ether okwamanje akunazo izindlela zokuhlola ezifanele ezweni, futhi abakhiqizi ngokuvamile abahlinzeki ngemingcele yezobuchwepheshe, okuletha ukuphazamiseka kubasebenzisi ekusetshenzisweni nasekuhlolweni. Ngokubhekiselwa ezindleleni zokuhlola zeminye imikhiqizo, ama-cellulose ether alandelayo ayafingqwa Indlela yokuhlola yokugcinwa kwamanzi ingeyezingxoxo.
1. Indlela yokumpompa ngevacuum
Umswakama odongeni ngemva kokuhlunga
Indlela isho izinga lemboni ye-JC/T517-2005 “Plastering Gypsum”, futhi indlela yokuhlola isho izinga lasekuqaleni laseJapan (JISA6904-1976). Ngesikhathi sokuhlolwa, gcwalisa ifaneli ye-Buchner ngodaka oluxutshwe namanzi, ulibeke ebhodleleni lesihlungi sokumunca, qala iphampu ye-vacuum, bese uhlunga imizuzu engama-20 ngaphansi kwengcindezi engemihle engu (400±5) mm Hg. Bese, ngokuya ngenani lamanzi ku-slurry ngaphambi nangemva kokuhlunga kokumuncwa, bala izinga lokugcinwa kwamanzi ngale ndlela elandelayo.
Ukugcinwa kwamanzi (%)=umswakama odongeni ngemva kokuhlunga/umswakama odongeni ngaphambi kokuhlunga)KX)
Indlela ye-vacuum inembe kakhulu ekulinganiseni izinga lokugcinwa kwamanzi, futhi iphutha lincane, kodwa lidinga amathuluzi akhethekile nemishini, futhi ukutshalwa kwezimali kukhulu ngokuqhathaniswa.
2. Indlela yephepha lokuhlunga
Indlela yephepha lokuhlunga iwukwahlulela ukugcinwa kwamanzi kwe-cellulose ether ngokumuncwa kwamanzi kwephepha lokuhlunga. Yakhiwe ngesikhunta sokuhlola indandatho yensimbi enobude obuthile, iphepha lokuhlunga kanye nepuleti lokusekela lengilazi. Kunezingqimba eziyisi-6 zephepha lokuhlunga ngaphansi kwesikhunta sokuhlola, isendlalelo sokuqala siyiphepha lokuhlunga elisheshayo, futhi izingqimba ezi-5 ezisele ziyiphepha lokuhlunga elihamba kancane. Sebenzisa ibhalansi enembile ukuze ulinganise isisindo se-pallet kanye nezingqimba ezingu-5 zephepha lokuhlunga kancane kuqala, uthele udaka esikhunjini sokuhlola ngemva kokuxutshwa futhi usikwele sibe sicaba, bese usiyeka sime imizuzu engu-15; bese ukala isisindo sephalethi kanye nezingqimba ezi-5 zesisindo sephepha lokuhlunga kancane. Kubalwe ngokwefomula elandelayo:
M=/S
M—ukulahlekelwa kwamanzi, g/nm?
isisindo se-nu_pallet + izingqimba ezi-5 zephepha lokuhlunga kancane; g
m2_ Isisindo sephalethi + izingqimba ezi-5 zephepha lokuhlunga kancane ngemva kwemizuzu engu-15; g
S_area dish for trial isikhunta?
Ungakwazi futhi ukubona ngokuqondile izinga lokumuncwa kwamanzi kwephepha lokuhlunga, ukwehlisa ukumuncwa kwamanzi kwephepha lokuhlunga, ukugcinwa kwamanzi kangcono. Indlela yokuhlola kulula ukuyisebenzisa, futhi amabhizinisi ajwayelekile angahlangabezana nezimo zokuhlola.
3. Indlela yokuhlola isikhathi sokumisa ebusweni:
Le ndlela ingabhekisela ku-GB1728 “Ukunqunywa Kwesikhathi Sokomisa Kwefilimu Yepende Nefilimu Ye-Putty”, kuklebhule udaka olunyakaziswayo ebhodini likasimende le-asbestos, futhi lilawule ukujiya ku-3mm.
Indlela 1: indlela yebhola likakotini
Beka ngobumnene ibhola likakotini elimuncayo phezu kodaka, futhi ngezikhathi ezithile, sebenzisa umlomo wakho ukuze ugcine ibhola likakotini liqhele ngamasentimitha angu-10-15 ukusuka ebholeni likakotini, bese uvuthela ngobumnene ibhola likakotini ngendlela evundlile. Uma ingashaywa umoya futhi ingekho intambo kakotini esele endaweni yodaka, indawo engaphezulu ibhekwa njengeyomile, uma isikhathi eside sidlula, kuba ngcono ukugcinwa kwamanzi.
Indlela yesibili, indlela yokuthinta iminwe
Thinta ngobumnene ubuso bodaka ngeminwe ehlanzekile ngezikhathi ezithile. Uma uzizwa unamathele kancane, kodwa akukho udaka emunweni, kungabhekwa ukuthi ubuso bomile. Uma isikhathi sithatha isikhathi eside, kuba ngcono ukugcina amanzi.
Izindlela ezingenhla, indlela yephepha lokuhlunga kanye nendlela yokuthinta iminwe isetshenziswa kakhulu futhi kulula; abasebenzisi bangahlulela kuqala umphumela wokugcina amanzi we-cellulose ether ngokusebenzisa izindlela ezingenhla.
Isikhathi sokuthumela: Feb-14-2023