izindaba

Isinyathelo sokuqala ekusetshenzisweni kosizo lwesihlungi se-diatomite ekuhlungeni kwe-titanium i-pre-coating, okusho ukuthi ngaphambi kokusebenza kokuhlunga kwe-titanium, usizo lokuhlunga lwe-diatomite lusetshenziswa endaweni yokuhlunga, okungukuthi, indwangu yokuhlunga. I-diatomite ilungiselelwa ukumiswa ngesilinganiso esithile (imvamisa engu-1∶8 ~ 1∶10) ethangini elimbozwe ngaphambili, bese ukumiswa kuphonswa emshinini wokuhlunga ogcwaliswe ngamanzi ahlanzekile noma icwecwe ngepompo yokumboza ngaphambili, kanye nokuzungeza okuphindaphindiwe (cishe 12 ~ 30min) kuze kube uketshezi olujikelezayo lucacile.

Ngale ndlela, i-precoating esatshalaliswe ngokulinganayo kwakheka endaweni yokuhlunga (indwangu yokucindezela). Ukuze ulungiselele ukumiswa, ngokuvamile sebenzisa amanzi ahlanzekile, kodwa futhi ungasebenzisa uketshezi olucacile lwe-titanium. Inani le-diatomite elisetshenziselwa ukumboza ngaphambilini ngokuvamile liyi-800 ~ 1000g/m2, futhi izinga lokugeleza eliphezulu lokumboza kwangaphambili akufanele lidlule u-0.2m3/(m2? H). I-precoating iwumbhede wokuhlunga oyisisekelo wokuhlunga uketshezi lwe-titanium, futhi ikhwalithi yayo ihlobene ngokuqondile nempumelelo yawo wonke umjikelezo wokuhlunga.

I-pre-coating kufanele futhi inake amaphuzu alandelayo:

(1) Ngesikhathi sokumbozwa kwangaphambili, inani le-diatomite kufanele libe ungqimba lwesihlungi oluwugqinsi oluyi-1 ~ 3mm. Uma sithatha isipiliyoni sefekthri njengesibonelo, kwasetshenziswa ipuleti le-80m2 kanye nomshini wokuhlunga uhlaka, futhi i-100kg yosizo lwesihlungi se-diatomite yanezelwa isikhathi ngasinye ngesikhathi sokumbozwa kwangaphambili, okungase kuhlunge ngokuqhubekayo ku-5d futhi kukhiqize i-17-18T yemikhiqizo eqediwe nsuku zonke.

(2) Lapho kugcotshwa, ipuleti nesihlungi somshini kuzogcwaliswa ngoketshezi kusengaphambili, futhi umoya uzophuma engxenyeni engenhla yomshini;

(3) pre-enamathela kufanele uqhubeke hit umjikelezo. Ngenxa yokuthi ikhekhe lokuhlunga alakhiwe ekuqaleni, ezinye izinhlayiya ezinhle zizodlula ngendwangu yokuhlunga bese zingena ku-filtrate. Ukujikeleza kunganqamula izinhlayiya ezihlungiwe ebusweni bekhekhe lokuhlunga futhi. Ubude besikhathi somjikelezo buncike ezingeni lokucaca elidingekayo ku-filtrate.

Isinyathelo sesibili ukwengeza ukuhlunga. Lapho uketshezi lwe-titanium oluqukethe ukungcola okuqinile kanye ne-colloid luhlungwa, ngemva kokumbozwa kwangaphambili, akudingekile ukwengeza usizo lwesihlungi se-diatomite ukuhlunga ngokuqondile. Lapho kuhlunga uketshezi lwe-titanium oluqukethe ukungcola okuqinile nokuqinile, noma lapho kuhlunga uketshezi lwe-titanium ngokugxila okuphakeme kanye ne-viscosity, inani elifanele losizo lwesihlungi se-diatomite kufanele lengezwe oketshezini lokuhlunga lwe-titanium. Uma kungenjalo, ubuso be-pre-coating buzohlanganiswa nokungcola okuqinile kanye ne-colloidal maduzane, kuvimbela isiteshi sokuhlunga, ukuze ukwehla kokucindezela ezinhlangothini zombili zekhekhe lokuhlunga kuzokhuphuka ngokushesha, futhi umjikelezo wokuhlunga uzofinyezwa kakhulu.