Caawinta filter-ka Diatomite waxa loo qaybin karaa alaab algae qalalan, badeecooyin calcined iyo badeecooyin calcined ah iyadoo loo eegayo hababka wax soo saarka ee kala duwan.

① Alaabta la qalajiyey
Ka dib markii la nadiifiyo, qalajinta hore iyo soo saarista, alaabta ceeriin waa la qalajiyey 600-800 ° C, ka dibna waa la gooyaa.Alaabta noocan ahi waxay leedahay cabbirka walxaha aad u fiican waxayna ku habboon tahay sifeynta saxda ah.Inta badan waxaa lagu daraa qalabyada kale ee shaandhada.Alaabooyinka qalalan ayaa u badan jaale khafiif ah, laakiin sidoo kale caano leh iyo cawl khafiif ah.

② Badeecooyinka la kariyey
Diatomit-ka la safeeyey, la qalajiyey oo la jajabiyey waxaa lagu quudiyaa foorno wareeg ah, oo lagu kariyey 800-1200 ° C, ka dibna la jajabiyey oo la qiimeeyey si loo helo alaabta la kariyey.Marka la barbar dhigo alaabta qalalan, xajinta alaabta calcined waxay ka badan tahay saddex jeer.Badeecadaha la kariyey ayaa u badan casaan khafiif ah.

③ Flux calcined Products
Ka dib markii la nadiifiyo, qalajinta iyo shiidi, alaabta ceeriin ee diatomite waxaa lagu daraa qadar yar oo ah sodium carbonate, sodium chloride iyo AIDS kale dhalaalaysa, iyo calcined at 900 ~ 1200 ° C. ka dib markii shiidi iyo darajaynta cabbirka qayb, qulqulka calcined alaabta waa helay.Joogitaanka badeecada calcined flux ayaa si cad u kordhay, taas oo in ka badan 20 jeer ka badan alaabta qalalan.Alaabooyinka la kariyey ee qulqulka leh ayaa u badan caddaan, iyo casaan khafiif ah marka waxa ku jira Fe2O3 uu sarreeyo ama qadarka qulqulku yar yahay.