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Tallaabada ugu horreysa ee codsiga shaandhada shaandhada diatomite ee shaandhaynta titanium waa dahaarka hore, taas oo macnaheedu yahay in ka hor hawlgalka shaandhaynta titanium, kaaliyaha shaandhada diatomite ayaa lagu dabaqaa dhexdhexaadiyaha shaandhada, kuwaas oo ah, dharka shaandhada. Diatomite waxaa loo diyaariyey in la hakiyo qayb gaar ah (guud ahaan 1∶8 ~ 1∶10) ee haanta hore ee dahaarka, ka dibna ganaaxa waxaa lagu shubaa miiraha miiraha oo ay ka buuxaan biyo saafi ah ama sifeeya iyada oo loo marayo bamka dahaarka ka hor, iyo wareegga soo noqnoqda (qiyaastii 12 ~ 30min) ilaa dareeraha wareega uu cad yahay.

Sidan, precoating si siman loo qaybiyey ayaa lagu sameeyay dhexdhexaadiyaha shaandhada (maro-saxaafadeed). Si aad u diyaariso cayrinta, guud ahaan isticmaal biyo saafi ah, laakiin sidoo kale waxaad isticmaali kartaa dareere titanium oo cad cad. Qadarka diatomite ee loo isticmaalo dahaarka ka hor guud ahaan waa 800 ~ 1000g/m2, iyo heerka socodka ugu badan ee dahaarka hore waa inuusan dhaafin 0.2m3/(m2? H). Precoating waa sariirta shaandhada aasaasiga ah ee shaandhaynta dareeraha titanium, tayadeeduna waxay si toos ah ula xiriirtaa guusha wareegga sifaynta oo dhan.

Dahaarka ka hor waa in sidoo kale fiiro gaar ah u yeelo qodobada soo socda:

(1) Inta lagu jiro dahaarka hore, cadadka diatomite waa inuu ahaadaa lakabka shaandhada 1 ~ 3mm qaro weyn. Tusaale ahaan, waayo-aragnimada warshadda, saxan 80m2 ah iyo saxanka filter filter-ka ayaa la isticmaalay, 100kg oo ah shaandhada shaandhada diatomite ayaa lagu daray wakhti kasta inta lagu jiro dahaarka ka hor, taas oo si joogto ah u shaandheyn karta 5d oo soo saari karta 17-18T alaabta la dhammeeyey maalin kasta.

(2) Marka hore loo sii daayo, saxanka iyo saxanka shaandhada shaandhada hore waa in lagu buuxiyaa dareere, hawadana waa in laga sii daayaa qaybta sare ee mashiinka;

(3) dahaarka hore waa inuu sii wadaa inuu ku dhufto wareegga. Sababtoo ah keega shaandhada lama samayn bilowga, qaybo yaryar ayaa dhex mari doona marada shaandhada oo geli doona sifaynta. Wareegiddu waxay mar labaad joojin kartaa qaybaha la sifeeyay ee dusha sare ee keega shaandhada. Dhererka wakhtiga wareeggu wuxuu ku xiran yahay heerka caddaynta ee looga baahan yahay sifeynta.

Talaabada labaad waa in lagu daro sifaynta. Marka dareeraha titanium ee ay ku jiraan wasakhda adag iyo kolloidka la sifeeyo, ka dib markii dahaarka hore loo sameeyo, looma baahna in lagu daro gargaarka filter diatomite si toos ah. Marka la shaandhaynayo dareeraha titanium-ka oo ay ku jiraan wasakhyo adag oo adag, ama marka la shaandhaynayo dareeraha titanium-ka oo leh feejignaan sare iyo viscosity, qadar habboon oo ah shaandhada shaandhada diatomite waa in lagu daraa dareeraha shaandhaynta titanium-ka. Haddii kale, dusha sare ee dahaarka ka hor ayaa lagu dabooli doonaa wasakh adag iyo kolloidal si dhakhso ah, xannibaya kanaalka filterka, si cadaadiska cadaadiska labada dhinac ee keega filter uu si degdeg ah u kici doono, wareegga sifeynta ayaa si weyn loo gaabin doonaa.