Isinyathelo sokuqala ekusetyenzisweni kwe-diatomite filter aid kwi-titanium filtration yi-coating yangaphambili, oku kuthetha ukuba ngaphambi kokusebenza kwe-titanium filtration, i-diatomite filter aid isetyenziswe kwisihluzo esiphakathi, oko kukuthi, ilaphu lokucoca. I-diatomite ilungiselelwa ukunqunyanyiswa ngokomlinganiselo othile (ngokuqhelekileyo 1∶8 ~ 1∶10) kwitanki yokugquma kwangaphambili, kwaye ke ukunqunyanyiswa kumpontshelwa kwisicoci sokucoca esizaliswe ngamanzi acacileyo okanye ukuhluzwa ngempompo yokwaleka kwangaphambili, kunye nojikelezo oluphindaphindiweyo (malunga ne-12 ~ 30min) de ulwelo olucacileyo.
Ngale ndlela, i-precoating eyabiwe ngokulinganayo yenziwa kwindawo yokucoca (i-cofa cloth). Ukulungiselela ukumiswa, ngokuqhelekileyo sebenzisa amanzi acacileyo, kodwa unokusebenzisa ulwelo olucacileyo lwetitanium. Isixa se-diatomite esisetyenziselwa ukugubungela kwangaphambili ngokuqhelekileyo yi-800 ~ 1000g / m2, kwaye ubuninzi bezinga lokuhamba kwe-pre-coating akufanele lidlule i-0.2m3 / (m2? H). I-precoating yibhedi esisiseko yokucoca i-titanium liquid filtration, kwaye umgangatho wayo uhambelana ngokuthe ngqo kwimpumelelo yomjikelezo wonke wokucoca.
I-pre-coating kufuneka inikele ingqalelo kula manqaku alandelayo:
(1) Ngexesha lokugquma kwangaphambili, isixa se-diatomite kufuneka sibe yi-1 ~ 3mm umaleko wesihluzi esityebileyo. Ukuthatha amava omzi-mveliso njengomzekelo, i-plate ye-80m2 kunye ne-frame filter press yasetyenziswa, kwaye i-100kg ye-diatomite i-filter aid yongezwa ngexesha ngalinye ngexesha lokugubungela kwangaphambili, elinokucoca ngokuqhubekayo kwi-5d kunye nokuvelisa i-17-18T yeemveliso ezigqityiweyo yonke imihla.
(2) Xa i-precoating, ipleyiti kunye ne-frame filter press iya kuzaliswa ngolwelo kwangaphambili, kwaye umoya uya kuphuma kwindawo ephezulu yomatshini;
(3) i-pre-coating kufuneka iqhubeke ibetha umjikelo. Ngenxa yokuba ikhekhe lokucoca alenziwanga ekuqaleni, amanye amasuntswana amahle aya kudlula kwilaphu lokucoca kwaye angenise ifiltrate. Ukujikeleza kunokuthintela amaqhekeza ahluziweyo kumphezulu wekhekhe lokucoca kwakhona. Ubude bexesha lomjikelezo buxhomekeke kwiqondo lokucaca elifunekayo kwi-filtrate.
Inyathelo lesibini kukongeza ukuhluza. Xa i-titanium liquid equkethe ukungcola okuqinileyo kunye ne-colloid ihluzwa, emva kokuba i-coating yangaphambili yenziwe, akuyimfuneko ukongeza uncedo lwe-diatomite lokucoca ngokuthe ngqo. Xa kuhluzwa ulwelo lwetitanium oluqulathe ukungcola okuqinileyo ngakumbi kunye ne-colloidal, okanye xa kuhluzwa ulwelo lwetitanium ngoxinzelelo oluphezulu kunye ne-viscosity, ubungakanani obufanelekileyo boncedo lokucoca lwediatomite kufuneka longezwe kulwelo lwetitanium lokuhluza. Ngaphandle koko, ubuso be-pre-coating buya kugutyungelwa ngokungcola okuqinileyo kunye ne-colloidal ngokukhawuleza, ukuvala umjelo wokucoca, ukwenzela ukuba ukuhla koxinzelelo kumacala omabini ekhekhe lokucoca kuya kunyuka ngokukhawuleza, kwaye umjikelezo wokucoca uya kufinyezwa kakhulu.
Ixesha lokuposa: Apr-20-2022